diff --git a/src/pocketmine/Achievement.php b/src/pocketmine/Achievement.php
index f220ec53c..c78a4a6f7 100644
--- a/src/pocketmine/Achievement.php
+++ b/src/pocketmine/Achievement.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 use pocketmine\event\TranslationContainer;
@@ -108,7 +110,7 @@ abstract class Achievement{
 	public static function broadcast(Player $player, $achievementId){
 		if(isset(Achievement::$list[$achievementId])){
 			$translation = new TranslationContainer("chat.type.achievement", [$player->getDisplayName(), TextFormat::GREEN . Achievement::$list[$achievementId]["name"] . TextFormat::RESET]);
-			if(Server::getInstance()->getConfigString("announce-player-achievements", true) === true){
+			if(Server::getInstance()->getConfigBoolean("announce-player-achievements", true) === true){
 				Server::getInstance()->broadcastMessage($translation);
 			}else{
 				$player->sendMessage($translation);
diff --git a/src/pocketmine/Collectable.php b/src/pocketmine/Collectable.php
index fce2fe588..cd3288684 100644
--- a/src/pocketmine/Collectable.php
+++ b/src/pocketmine/Collectable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 abstract class Collectable extends \Threaded implements \Collectable{
diff --git a/src/pocketmine/CrashDump.php b/src/pocketmine/CrashDump.php
index 45504df64..605587adb 100644
--- a/src/pocketmine/CrashDump.php
+++ b/src/pocketmine/CrashDump.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 use pocketmine\network\mcpe\protocol\ProtocolInfo;
diff --git a/src/pocketmine/IPlayer.php b/src/pocketmine/IPlayer.php
index 78fdd45cc..fb377f036 100644
--- a/src/pocketmine/IPlayer.php
+++ b/src/pocketmine/IPlayer.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 use pocketmine\permission\ServerOperator;
diff --git a/src/pocketmine/MemoryManager.php b/src/pocketmine/MemoryManager.php
index a3111af69..3c32dae8b 100644
--- a/src/pocketmine/MemoryManager.php
+++ b/src/pocketmine/MemoryManager.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 use pocketmine\event\server\LowMemoryEvent;
diff --git a/src/pocketmine/OfflinePlayer.php b/src/pocketmine/OfflinePlayer.php
index 1050d8edc..0337fb4b3 100644
--- a/src/pocketmine/OfflinePlayer.php
+++ b/src/pocketmine/OfflinePlayer.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 use pocketmine\metadata\Metadatable;
diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index e9b8252c9..d68d610d1 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 use pocketmine\block\Air;
@@ -839,6 +841,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 			$X = null;
 			$Z = null;
 			Level::getXZ($index, $X, $Z);
+			assert(is_int($X) and is_int($Z));
 
 			++$count;
 
@@ -900,7 +903,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 				$this->getDisplayName()
 			])
 		));
-		if(strlen(trim($ev->getJoinMessage())) > 0){
+		if(strlen(trim((string) $ev->getJoinMessage())) > 0){
 			$this->server->broadcastMessage($ev->getJoinMessage());
 		}
 
@@ -1806,7 +1809,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 
 		$this->allowFlight = (bool) ($this->gamemode & 0x01);
 
-		if(($level = $this->server->getLevelByName($this->namedtag["Level"])) === null){
+		if(($level = $this->server->getLevelByName((string) $this->namedtag["Level"])) === null){
 			$this->setLevel($this->server->getDefaultLevel());
 			$this->namedtag["Level"] = $this->level->getName();
 			$this->namedtag["Pos"][0] = $this->level->getSpawnLocation()->x;
@@ -1823,7 +1826,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 			$this->achievements[$achievement->getName()] = $achievement->getValue() > 0 ? true : false;
 		}
 
-		$this->namedtag->lastPlayed = new LongTag("lastPlayed", floor(microtime(true) * 1000));
+		$this->namedtag->lastPlayed = new LongTag("lastPlayed", (int) floor(microtime(true) * 1000));
 		if($this->server->getAutoSave()){
 			$this->server->saveOfflinePlayerData($this->username, $this->namedtag, true);
 		}
@@ -1842,7 +1845,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 	protected function completeLoginSequence(){
 		parent::__construct($this->level, $this->namedtag);
 
-		if(!$this->hasValidSpawnPosition() and isset($this->namedtag->SpawnLevel) and ($level = $this->server->getLevelByName($this->namedtag["SpawnLevel"])) instanceof Level){
+		if(!$this->hasValidSpawnPosition() and isset($this->namedtag->SpawnLevel) and ($level = $this->server->getLevelByName((string) $this->namedtag["SpawnLevel"])) instanceof Level){
 			$this->spawnPosition = new WeakPosition($this->namedtag["SpawnX"], $this->namedtag["SpawnY"], $this->namedtag["SpawnZ"], $level);
 		}
 
@@ -1864,12 +1867,12 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 		$pk->spawnX = $spawnPosition->getFloorX();
 		$pk->spawnY = $spawnPosition->getFloorY();
 		$pk->spawnZ = $spawnPosition->getFloorZ();
-		$pk->hasAchievementsDisabled = 1;
+		$pk->hasAchievementsDisabled = true;
 		$pk->dayCycleStopTime = -1; //TODO: implement this properly
-		$pk->eduMode = 0;
+		$pk->eduMode = false;
 		$pk->rainLevel = 0; //TODO: implement these properly
 		$pk->lightningLevel = 0;
-		$pk->commandsEnabled = 1;
+		$pk->commandsEnabled = true;
 		$pk->levelId = "";
 		$pk->worldName = $this->server->getMotd();
 		$this->dataPacket($pk);
@@ -2598,7 +2601,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 					//TODO: improve this to take stuff like swimming, ladders, enchanted tools into account, fix wrong tool break time calculations for bad tools (pmmp/PocketMine-MP#211)
 					$breakTime = ceil($target->getBreakTime($this->inventory->getItemInHand()) * 20);
 					if($breakTime > 0){
-						$this->level->broadcastLevelEvent($pos, LevelEventPacket::EVENT_BLOCK_START_BREAK, 65535 / $breakTime);
+						$this->level->broadcastLevelEvent($pos, LevelEventPacket::EVENT_BLOCK_START_BREAK, (int) (65535 / $breakTime));
 					}
 				}
 				$this->lastBreak = microtime(true);
@@ -3563,7 +3566,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 	/**
 	 * Sends a direct chat message to a player
 	 *
-	 * @param string|TextContainer $message
+	 * @param TextContainer|string $message
 	 */
 	public function sendMessage($message){
 		if($message instanceof TextContainer){
@@ -3745,7 +3748,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 		}
 
 		$this->namedtag["playerGameType"] = $this->gamemode;
-		$this->namedtag["lastPlayed"] = floor(microtime(true) * 1000);
+		$this->namedtag["lastPlayed"] = (int) floor(microtime(true) * 1000);
 
 		if($this->username != "" and $this->namedtag instanceof CompoundTag){
 			$this->server->saveOfflinePlayerData($this->username, $this->namedtag, $async);
@@ -3959,6 +3962,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 		$pk->pitch = $pitch;
 		$pk->yaw = $yaw;
 		$pk->mode = $mode;
+		$pk->onGround = $this->onGround;
 
 		if($targets !== null){
 			$this->server->broadcastPacket($targets, $pk);
diff --git a/src/pocketmine/PocketMine.php b/src/pocketmine/PocketMine.php
index d80550156..82063ae98 100644
--- a/src/pocketmine/PocketMine.php
+++ b/src/pocketmine/PocketMine.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace {
 	function safe_var_dump(){
 		static $cnt = 0;
@@ -142,12 +144,12 @@ namespace pocketmine {
 		}
 	});
 
-	ini_set("allow_url_fopen", 1);
-	ini_set("display_errors", 1);
-	ini_set("display_startup_errors", 1);
+	ini_set("allow_url_fopen", '1');
+	ini_set("display_errors", '1');
+	ini_set("display_startup_errors", '1');
 	ini_set("default_charset", "utf-8");
 
-	ini_set("memory_limit", -1);
+	ini_set("memory_limit", '-1');
 	define('pocketmine\START_TIME', microtime(true));
 
 	$opts = getopt("", ["data:", "plugins:", "no-wizard", "enable-profiler"]);
diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index 89c28f91a..ac9e10aad 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * PocketMine-MP is the Minecraft: PE multiplayer server software
  * Homepage: http://www.pocketmine.net/
@@ -40,6 +42,7 @@ use pocketmine\event\level\LevelLoadEvent;
 use pocketmine\event\player\PlayerDataSaveEvent;
 use pocketmine\event\server\QueryRegenerateEvent;
 use pocketmine\event\server\ServerCommandEvent;
+use pocketmine\event\TextContainer;
 use pocketmine\event\Timings;
 use pocketmine\event\TimingsHandler;
 use pocketmine\event\TranslationContainer;
@@ -264,77 +267,77 @@ class Server{
 	/**
 	 * @return string
 	 */
-	public function getName(){
+	public function getName() : string{
 		return "PocketMine-MP";
 	}
 
 	/**
 	 * @return bool
 	 */
-	public function isRunning(){
+	public function isRunning() : bool{
 		return $this->isRunning === true;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getPocketMineVersion(){
+	public function getPocketMineVersion() : string{
 		return \pocketmine\VERSION;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getCodename(){
+	public function getCodename() : string{
 		return \pocketmine\CODENAME;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getVersion(){
+	public function getVersion() : string{
 		return ProtocolInfo::MINECRAFT_VERSION;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getApiVersion(){
+	public function getApiVersion() : string{
 		return \pocketmine\API_VERSION;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getFilePath(){
+	public function getFilePath() : string{
 		return $this->filePath;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getDataPath(){
+	public function getDataPath() : string{
 		return $this->dataPath;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getPluginPath(){
+	public function getPluginPath() : string{
 		return $this->pluginPath;
 	}
 
 	/**
 	 * @return int
 	 */
-	public function getMaxPlayers(){
+	public function getMaxPlayers() : int{
 		return $this->maxPlayers;
 	}
 
 	/**
 	 * @return int
 	 */
-	public function getPort(){
+	public function getPort() : int{
 		return $this->getConfigInt("server-port", 19132);
 	}
 
@@ -359,10 +362,13 @@ class Server{
 	/**
 	 * @return string
 	 */
-	public function getIp(){
+	public function getIp() : string{
 		return $this->getConfigString("server-ip", "0.0.0.0");
 	}
 
+	/**
+	 * @return UUID
+	 */
 	public function getServerUniqueId(){
 		return $this->serverID;
 	}
@@ -370,15 +376,15 @@ class Server{
 	/**
 	 * @return bool
 	 */
-	public function getAutoSave(){
+	public function getAutoSave() : bool{
 		return $this->autoSave;
 	}
 
 	/**
 	 * @param bool $value
 	 */
-	public function setAutoSave($value){
-		$this->autoSave = (bool) $value;
+	public function setAutoSave(bool $value){
+		$this->autoSave = $value;
 		foreach($this->getLevels() as $level){
 			$level->setAutoSave($this->autoSave);
 		}
@@ -387,28 +393,28 @@ class Server{
 	/**
 	 * @return string
 	 */
-	public function getLevelType(){
+	public function getLevelType() : string{
 		return $this->getConfigString("level-type", "DEFAULT");
 	}
 
 	/**
 	 * @return bool
 	 */
-	public function getGenerateStructures(){
+	public function getGenerateStructures() : bool{
 		return $this->getConfigBoolean("generate-structures", true);
 	}
 
 	/**
 	 * @return int
 	 */
-	public function getGamemode(){
+	public function getGamemode() : int{
 		return $this->getConfigInt("gamemode", 0) & 0b11;
 	}
 
 	/**
 	 * @return bool
 	 */
-	public function getForceGamemode(){
+	public function getForceGamemode() : bool{
 		return $this->getConfigBoolean("force-gamemode", false);
 	}
 
@@ -419,7 +425,7 @@ class Server{
 	 *
 	 * @return string
 	 */
-	public static function getGamemodeString($mode){
+	public static function getGamemodeString(int $mode) : string{
 		switch((int) $mode){
 			case Player::SURVIVAL:
 				return "%gameMode.survival";
@@ -441,7 +447,7 @@ class Server{
 	 *
 	 * @return int
 	 */
-	public static function getGamemodeFromString($str){
+	public static function getGamemodeFromString(string $str) : int{
 		switch(strtolower(trim($str))){
 			case (string) Player::SURVIVAL:
 			case "survival":
@@ -472,7 +478,7 @@ class Server{
 	 *
 	 * @return int
 	 */
-	public static function getDifficultyFromString($str){
+	public static function getDifficultyFromString(string $str) : int{
 		switch(strtolower(trim($str))){
 			case "0":
 			case "peaceful":
@@ -500,49 +506,49 @@ class Server{
 	/**
 	 * @return int
 	 */
-	public function getDifficulty(){
+	public function getDifficulty() : int{
 		return $this->getConfigInt("difficulty", 1);
 	}
 
 	/**
 	 * @return bool
 	 */
-	public function hasWhitelist(){
+	public function hasWhitelist() : bool{
 		return $this->getConfigBoolean("white-list", false);
 	}
 
 	/**
 	 * @return int
 	 */
-	public function getSpawnRadius(){
+	public function getSpawnRadius() : int{
 		return $this->getConfigInt("spawn-protection", 16);
 	}
 
 	/**
 	 * @return bool
 	 */
-	public function getAllowFlight(){
+	public function getAllowFlight() : bool{
 		return $this->getConfigBoolean("allow-flight", false);
 	}
 
 	/**
 	 * @return bool
 	 */
-	public function isHardcore(){
+	public function isHardcore() : bool{
 		return $this->getConfigBoolean("hardcore", false);
 	}
 
 	/**
 	 * @return int
 	 */
-	public function getDefaultGamemode(){
+	public function getDefaultGamemode() : int{
 		return $this->getConfigInt("gamemode", 0) & 0b11;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getMotd(){
+	public function getMotd() : string{
 		return $this->getConfigString("motd", "Minecraft: PE Server");
 	}
 
@@ -619,7 +625,7 @@ class Server{
 	/**
 	 * @return int
 	 */
-	public function getTick(){
+	public function getTick() : int{
 		return $this->tickCounter;
 	}
 
@@ -628,7 +634,7 @@ class Server{
 	 *
 	 * @return float
 	 */
-	public function getTicksPerSecond(){
+	public function getTicksPerSecond() : float{
 		return round($this->currentTPS, 2);
 	}
 
@@ -637,7 +643,7 @@ class Server{
 	 *
 	 * @return float
 	 */
-	public function getTicksPerSecondAverage(){
+	public function getTicksPerSecondAverage() : float{
 		return round(array_sum($this->tickAverage) / count($this->tickAverage), 2);
 	}
 
@@ -646,7 +652,7 @@ class Server{
 	 *
 	 * @return float
 	 */
-	public function getTickUsage(){
+	public function getTickUsage() : float{
 		return round($this->currentUse * 100, 2);
 	}
 
@@ -655,7 +661,7 @@ class Server{
 	 *
 	 * @return float
 	 */
-	public function getTickUsageAverage(){
+	public function getTickUsageAverage() : float{
 		return round((array_sum($this->useAverage) / count($this->useAverage)) * 100, 2);
 	}
 
@@ -669,7 +675,7 @@ class Server{
 	/**
 	 * @return Player[]
 	 */
-	public function getOnlinePlayers(){
+	public function getOnlinePlayers() : array{
 		return $this->playerList;
 	}
 
@@ -686,7 +692,7 @@ class Server{
 	 *
 	 * @return OfflinePlayer|Player
 	 */
-	public function getOfflinePlayer($name){
+	public function getOfflinePlayer(string $name){
 		$name = strtolower($name);
 		$result = $this->getPlayerExact($name);
 
@@ -702,7 +708,7 @@ class Server{
 	 *
 	 * @return CompoundTag
 	 */
-	public function getOfflinePlayerData($name) : CompoundTag{
+	public function getOfflinePlayerData(string $name) : CompoundTag{
 		$name = strtolower($name);
 		$path = $this->getDataPath() . "players/";
 		if($this->shouldSavePlayerData()){
@@ -794,9 +800,9 @@ class Server{
 	/**
 	 * @param string $name
 	 *
-	 * @return Player
+	 * @return Player|null
 	 */
-	public function getPlayer($name){
+	public function getPlayer(string $name){
 		$found = null;
 		$name = strtolower($name);
 		$delta = PHP_INT_MAX;
@@ -819,9 +825,9 @@ class Server{
 	/**
 	 * @param string $name
 	 *
-	 * @return Player
+	 * @return Player|null
 	 */
-	public function getPlayerExact($name){
+	public function getPlayerExact(string $name){
 		$name = strtolower($name);
 		foreach($this->getOnlinePlayers() as $player){
 			if($player->getLowerCaseName() === $name){
@@ -837,7 +843,7 @@ class Server{
 	 *
 	 * @return Player[]
 	 */
-	public function matchPlayer($partialName){
+	public function matchPlayer(string $partialName) : array{
 		$partialName = strtolower($partialName);
 		$matchedPlayers = [];
 		foreach($this->getOnlinePlayers() as $player){
@@ -875,12 +881,12 @@ class Server{
 	/**
 	 * @return Level[]
 	 */
-	public function getLevels(){
+	public function getLevels() : array{
 		return $this->levels;
 	}
 
 	/**
-	 * @return Level
+	 * @return Level|null
 	 */
 	public function getDefaultLevel(){
 		return $this->levelDefault;
@@ -891,7 +897,7 @@ class Server{
 	 * This won't change the level-name property,
 	 * it only affects the server on runtime
 	 *
-	 * @param Level $level
+	 * @param Level|null $level
 	 */
 	public function setDefaultLevel($level){
 		if($level === null or ($this->isLevelLoaded($level->getFolderName()) and $level !== $this->levelDefault)){
@@ -904,16 +910,16 @@ class Server{
 	 *
 	 * @return bool
 	 */
-	public function isLevelLoaded($name){
+	public function isLevelLoaded(string $name) : bool{
 		return $this->getLevelByName($name) instanceof Level;
 	}
 
 	/**
 	 * @param int $levelId
 	 *
-	 * @return Level
+	 * @return Level|null
 	 */
-	public function getLevel($levelId){
+	public function getLevel(int $levelId){
 		if(isset($this->levels[$levelId])){
 			return $this->levels[$levelId];
 		}
@@ -922,11 +928,13 @@ class Server{
 	}
 
 	/**
-	 * @param $name
+	 * NOTE: This matches levels based on the FOLDER name, NOT the display name.
 	 *
-	 * @return Level
+	 * @param string $name
+	 *
+	 * @return Level|null
 	 */
-	public function getLevelByName($name){
+	public function getLevelByName(string $name){
 		foreach($this->getLevels() as $level){
 			if($level->getFolderName() === $name){
 				return $level;
@@ -944,7 +952,7 @@ class Server{
 	 *
 	 * @throws \InvalidStateException
 	 */
-	public function unloadLevel(Level $level, $forceUnload = false){
+	public function unloadLevel(Level $level, bool $forceUnload = false) : bool{
 		if($level === $this->getDefaultLevel() and !$forceUnload){
 			throw new \InvalidStateException("The default level cannot be unloaded while running, please switch levels.");
 		}
@@ -966,7 +974,7 @@ class Server{
 	 *
 	 * @throws LevelException
 	 */
-	public function loadLevel($name){
+	public function loadLevel(string $name) : bool{
 		if(trim($name) === ""){
 			throw new LevelException("Invalid empty level name");
 		}
@@ -1011,14 +1019,14 @@ class Server{
 	/**
 	 * Generates a new level if it does not exists
 	 *
-	 * @param string $name
-	 * @param int    $seed
-	 * @param string $generator Class name that extends pocketmine\level\generator\Noise
-	 * @param array  $options
+	 * @param string      $name
+	 * @param int|null    $seed
+	 * @param string|null $generator Class name that extends pocketmine\level\generator\Noise
+	 * @param array       $options
 	 *
 	 * @return bool
 	 */
-	public function generateLevel($name, $seed = null, $generator = null, $options = []){
+	public function generateLevel(string $name, $seed = null, $generator = null, array $options = []){
 		if(trim($name) === "" or $this->isLevelGenerated($name)){
 			return false;
 		}
@@ -1042,7 +1050,7 @@ class Server{
 			/** @var \pocketmine\level\format\io\LevelProvider $provider */
 			$provider::generate($path, $name, $seed, $generator, $options);
 
-			$level = new Level($this, $name, $path, $provider);
+			$level = new Level($this, $name, $path, (string) $provider);
 			$this->levels[$level->getId()] = $level;
 
 			$level->initLevel();
@@ -1090,7 +1098,7 @@ class Server{
 	 *
 	 * @return bool
 	 */
-	public function isLevelGenerated($name){
+	public function isLevelGenerated(string $name) : bool{
 		if(trim($name) === ""){
 			return false;
 		}
@@ -1130,28 +1138,13 @@ class Server{
 		return null;
 	}
 
-	/**
-	 * @param string $variable
-	 * @param string $defaultValue
-	 *
-	 * @return string
-	 */
-	public function getConfigString($variable, $defaultValue = ""){
-		$v = getopt("", ["$variable::"]);
-		if(isset($v[$variable])){
-			return (string) $v[$variable];
-		}
-
-		return $this->properties->exists($variable) ? $this->properties->get($variable) : $defaultValue;
-	}
-
 	/**
 	 * @param string $variable
 	 * @param mixed  $defaultValue
 	 *
 	 * @return mixed
 	 */
-	public function getProperty($variable, $defaultValue = null){
+	public function getProperty(string $variable, $defaultValue = null){
 		if(!array_key_exists($variable, $this->propertyCache)){
 			$v = getopt("", ["$variable::"]);
 			if(isset($v[$variable])){
@@ -1164,11 +1157,26 @@ class Server{
 		return $this->propertyCache[$variable] === null ? $defaultValue : $this->propertyCache[$variable];
 	}
 
+	/**
+	 * @param string $variable
+	 * @param string $defaultValue
+	 *
+	 * @return string
+	 */
+	public function getConfigString(string $variable, string $defaultValue = "") : string{
+		$v = getopt("", ["$variable::"]);
+		if(isset($v[$variable])){
+			return (string) $v[$variable];
+		}
+
+		return $this->properties->exists($variable) ? (string) $this->properties->get($variable) : $defaultValue;
+	}
+
 	/**
 	 * @param string $variable
 	 * @param string $value
 	 */
-	public function setConfigString($variable, $value){
+	public function setConfigString(string $variable, string $value){
 		$this->properties->set($variable, $value);
 	}
 
@@ -1178,7 +1186,7 @@ class Server{
 	 *
 	 * @return int
 	 */
-	public function getConfigInt($variable, $defaultValue = 0){
+	public function getConfigInt(string $variable, int $defaultValue = 0) : int{
 		$v = getopt("", ["$variable::"]);
 		if(isset($v[$variable])){
 			return (int) $v[$variable];
@@ -1191,17 +1199,17 @@ class Server{
 	 * @param string $variable
 	 * @param int    $value
 	 */
-	public function setConfigInt($variable, $value){
+	public function setConfigInt(string $variable, int $value){
 		$this->properties->set($variable, (int) $value);
 	}
 
 	/**
-	 * @param string  $variable
-	 * @param boolean $defaultValue
+	 * @param string $variable
+	 * @param bool   $defaultValue
 	 *
-	 * @return boolean
+	 * @return bool
 	 */
-	public function getConfigBoolean($variable, $defaultValue = false){
+	public function getConfigBoolean(string $variable, bool $defaultValue = false) : bool{
 		$v = getopt("", ["$variable::"]);
 		if(isset($v[$variable])){
 			$value = $v[$variable];
@@ -1227,16 +1235,16 @@ class Server{
 	 * @param string $variable
 	 * @param bool   $value
 	 */
-	public function setConfigBool($variable, $value){
+	public function setConfigBool(string $variable, bool $value){
 		$this->properties->set($variable, $value == true ? "1" : "0");
 	}
 
 	/**
 	 * @param string $name
 	 *
-	 * @return PluginIdentifiableCommand
+	 * @return PluginIdentifiableCommand|null
 	 */
-	public function getPluginCommand($name){
+	public function getPluginCommand(string $name){
 		if(($command = $this->commandMap->getCommand($name)) instanceof PluginIdentifiableCommand){
 			return $command;
 		}else{
@@ -1261,7 +1269,7 @@ class Server{
 	/**
 	 * @param string $name
 	 */
-	public function addOp($name){
+	public function addOp(string $name){
 		$this->operators->set(strtolower($name), true);
 
 		if(($player = $this->getPlayerExact($name)) !== null){
@@ -1273,7 +1281,7 @@ class Server{
 	/**
 	 * @param string $name
 	 */
-	public function removeOp($name){
+	public function removeOp(string $name){
 		$this->operators->remove(strtolower($name));
 
 		if(($player = $this->getPlayerExact($name)) !== null){
@@ -1285,7 +1293,7 @@ class Server{
 	/**
 	 * @param string $name
 	 */
-	public function addWhitelist($name){
+	public function addWhitelist(string $name){
 		$this->whitelist->set(strtolower($name), true);
 		$this->whitelist->save(true);
 	}
@@ -1293,7 +1301,7 @@ class Server{
 	/**
 	 * @param string $name
 	 */
-	public function removeWhitelist($name){
+	public function removeWhitelist(string $name){
 		$this->whitelist->remove(strtolower($name));
 		$this->whitelist->save();
 	}
@@ -1303,7 +1311,7 @@ class Server{
 	 *
 	 * @return bool
 	 */
-	public function isWhitelisted($name){
+	public function isWhitelisted(string $name){
 		return !$this->hasWhitelist() or $this->operators->exists($name, true) or $this->whitelist->exists($name, true);
 	}
 
@@ -1312,7 +1320,7 @@ class Server{
 	 *
 	 * @return bool
 	 */
-	public function isOp($name){
+	public function isOp(string $name){
 		return $this->operators->exists($name, true);
 	}
 
@@ -1337,7 +1345,7 @@ class Server{
 	/**
 	 * @return string[]
 	 */
-	public function getCommandAliases(){
+	public function getCommandAliases() : array{
 		$section = $this->getProperty("aliases");
 		$result = [];
 		if(is_array($section)){
@@ -1376,7 +1384,7 @@ class Server{
 	 * @param string          $dataPath
 	 * @param string          $pluginPath
 	 */
-	public function __construct(\ClassLoader $autoloader, \ThreadedLogger $logger, $filePath, $dataPath, $pluginPath){
+	public function __construct(\ClassLoader $autoloader, \ThreadedLogger $logger, string $filePath, string $dataPath, string $pluginPath){
 		self::$instance = $this;
 		self::$sleeper = new \Threaded;
 		$this->autoloader = $autoloader;
@@ -1650,12 +1658,12 @@ class Server{
 	}
 
 	/**
-	 * @param string        $message
-	 * @param Player[]|null $recipients
+	 * @param TextContainer|string $message
+	 * @param Player[]             $recipients
 	 *
 	 * @return int
 	 */
-	public function broadcastMessage($message, $recipients = null){
+	public function broadcastMessage($message, array $recipients = null) : int{
 		if(!is_array($recipients)){
 			return $this->broadcast($message, self::BROADCAST_CHANNEL_USERS);
 		}
@@ -1669,16 +1677,15 @@ class Server{
 	}
 
 	/**
-	 * @param string        $tip
-	 * @param Player[]|null $recipients
+	 * @param string   $tip
+	 * @param Player[] $recipients
 	 *
 	 * @return int
 	 */
-	public function broadcastTip($tip, $recipients = null){
+	public function broadcastTip(string $tip, array $recipients = null) : int{
 		if(!is_array($recipients)){
 			/** @var Player[] $recipients */
 			$recipients = [];
-
 			foreach($this->pluginManager->getPermissionSubscriptions(self::BROADCAST_CHANNEL_USERS) as $permissible){
 				if($permissible instanceof Player and $permissible->hasPermission(self::BROADCAST_CHANNEL_USERS)){
 					$recipients[spl_object_hash($permissible)] = $permissible; // do not send messages directly, or some might be repeated
@@ -1695,12 +1702,12 @@ class Server{
 	}
 
 	/**
-	 * @param string        $popup
-	 * @param Player[]|null $recipients
+	 * @param string   $popup
+	 * @param Player[] $recipients
 	 *
 	 * @return int
 	 */
-	public function broadcastPopup($popup, $recipients = null){
+	public function broadcastPopup(string $popup, array $recipients = null) : int{
 		if(!is_array($recipients)){
 			/** @var Player[] $recipients */
 			$recipients = [];
@@ -1751,12 +1758,12 @@ class Server{
 	}
 
 	/**
-	 * @param string $message
-	 * @param string $permissions
+	 * @param TextContainer|string $message
+	 * @param string               $permissions
 	 *
 	 * @return int
 	 */
-	public function broadcast($message, $permissions){
+	public function broadcast($message, string $permissions) : int{
 		/** @var CommandSender[] $recipients */
 		$recipients = [];
 		foreach(explode(";", $permissions) as $permission){
@@ -1794,7 +1801,7 @@ class Server{
 	 * @param bool         $forceSync
 	 * @param bool         $immediate
 	 */
-	public function batchPackets(array $players, array $packets, $forceSync = false, bool $immediate = false){
+	public function batchPackets(array $players, array $packets, bool $forceSync = false, bool $immediate = false){
 		Timings::$playerNetworkTimer->startTiming();
 
 		$targets = [];
@@ -1856,7 +1863,7 @@ class Server{
 	/**
 	 * @param int $type
 	 */
-	public function enablePlugins($type){
+	public function enablePlugins(int $type){
 		foreach($this->pluginManager->getPlugins() as $plugin){
 			if(!$plugin->isEnabled() and $plugin->getDescription()->getOrder() === $type){
 				$this->enablePlugin($plugin);
@@ -1899,7 +1906,7 @@ class Server{
 	 *
 	 * @return bool
 	 */
-	public function dispatchCommand(CommandSender $sender, $commandLine){
+	public function dispatchCommand(CommandSender $sender, string $commandLine){
 		if($this->commandMap->dispatch($sender, $commandLine)){
 			return true;
 		}
@@ -2115,8 +2122,8 @@ class Server{
 		}
 		$this->hasStopped = false;
 
-		ini_set("error_reporting", 0);
-		ini_set("memory_limit", -1); //Fix error dump not dumped on memory problems
+		ini_set("error_reporting", '0');
+		ini_set("memory_limit", '-1'); //Fix error dump not dumped on memory problems
 		$this->logger->emergency($this->getLanguage()->translateString("pocketmine.crash.create"));
 		try{
 			$dump = new CrashDump($this);
@@ -2272,11 +2279,11 @@ class Server{
 						$this->getLogger()->debug("Raising level \"{$level->getName()}\" tick rate to {$level->getTickRate()} ticks");
 					}elseif($tickMs >= 50){
 						if($level->getTickRate() === $this->baseTickRate){
-							$level->setTickRate(max($this->baseTickRate + 1, min($this->autoTickRateLimit, floor($tickMs / 50))));
-							$this->getLogger()->debug(sprintf("Level \"%s\" took %gms, setting tick rate to %d ticks", $level->getName(), round($tickMs, 2), $level->getTickRate()));
+							$level->setTickRate(max($this->baseTickRate + 1, min($this->autoTickRateLimit, (int) floor($tickMs / 50))));
+							$this->getLogger()->debug(sprintf("Level \"%s\" took %gms, setting tick rate to %d ticks", $level->getName(), (int) round($tickMs, 2), $level->getTickRate()));
 						}elseif(($tickMs / $level->getTickRate()) >= 50 and $level->getTickRate() < $this->autoTickRateLimit){
 							$level->setTickRate($level->getTickRate() + 1);
-							$this->getLogger()->debug(sprintf("Level \"%s\" took %gms, setting tick rate to %d ticks", $level->getName(), round($tickMs, 2), $level->getTickRate()));
+							$this->getLogger()->debug(sprintf("Level \"%s\" took %gms, setting tick rate to %d ticks", $level->getName(), (int) round($tickMs, 2), $level->getTickRate()));
 						}
 						$level->tickRateCounter = $level->getTickRate();
 					}
@@ -2324,7 +2331,7 @@ class Server{
 	/**
 	 * @return bool
 	 */
-	public function isLanguageForced(){
+	public function isLanguageForced() : bool{
 		return $this->forceLanguage;
 	}
 
@@ -2367,7 +2374,7 @@ class Server{
 	 *
 	 * TODO: move this to Network
 	 */
-	public function handlePacket($address, $port, $payload){
+	public function handlePacket(string $address, int $port, string $payload){
 		try{
 			if(strlen($payload) > 2 and substr($payload, 0, 2) === "\xfe\xfd" and $this->queryHandler instanceof QueryHandler){
 				$this->queryHandler->handle($address, $port, $payload);
diff --git a/src/pocketmine/Thread.php b/src/pocketmine/Thread.php
index 781310876..f6a6d93a1 100644
--- a/src/pocketmine/Thread.php
+++ b/src/pocketmine/Thread.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 /**
diff --git a/src/pocketmine/ThreadManager.php b/src/pocketmine/ThreadManager.php
index 27851a098..352233801 100644
--- a/src/pocketmine/ThreadManager.php
+++ b/src/pocketmine/ThreadManager.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 class ThreadManager extends \Volatile{
diff --git a/src/pocketmine/Worker.php b/src/pocketmine/Worker.php
index 43e7a3018..1c4916954 100644
--- a/src/pocketmine/Worker.php
+++ b/src/pocketmine/Worker.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine;
 
 /**
diff --git a/src/pocketmine/block/AcaciaWoodStairs.php b/src/pocketmine/block/AcaciaWoodStairs.php
index e22ba7c0d..27c3d7fb8 100644
--- a/src/pocketmine/block/AcaciaWoodStairs.php
+++ b/src/pocketmine/block/AcaciaWoodStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class AcaciaWoodStairs extends WoodStairs{
diff --git a/src/pocketmine/block/ActivatorRail.php b/src/pocketmine/block/ActivatorRail.php
index ae5ab5cf6..39e204843 100644
--- a/src/pocketmine/block/ActivatorRail.php
+++ b/src/pocketmine/block/ActivatorRail.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class ActivatorRail extends Rail{
diff --git a/src/pocketmine/block/Air.php b/src/pocketmine/block/Air.php
index 10b90e1e2..21ec6ed84 100644
--- a/src/pocketmine/block/Air.php
+++ b/src/pocketmine/block/Air.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Anvil.php b/src/pocketmine/block/Anvil.php
index b765ac648..70eae6e8f 100644
--- a/src/pocketmine/block/Anvil.php
+++ b/src/pocketmine/block/Anvil.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\inventory\AnvilInventory;
diff --git a/src/pocketmine/block/Bed.php b/src/pocketmine/block/Bed.php
index 2fb29fd7e..366ca5da2 100644
--- a/src/pocketmine/block/Bed.php
+++ b/src/pocketmine/block/Bed.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\TranslationContainer;
diff --git a/src/pocketmine/block/Bedrock.php b/src/pocketmine/block/Bedrock.php
index bad71bc2e..1196f99ec 100644
--- a/src/pocketmine/block/Bedrock.php
+++ b/src/pocketmine/block/Bedrock.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Beetroot.php b/src/pocketmine/block/Beetroot.php
index 699dce057..0cecf9e00 100644
--- a/src/pocketmine/block/Beetroot.php
+++ b/src/pocketmine/block/Beetroot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/BirchWoodStairs.php b/src/pocketmine/block/BirchWoodStairs.php
index 7570efc0d..a7b26aa5b 100644
--- a/src/pocketmine/block/BirchWoodStairs.php
+++ b/src/pocketmine/block/BirchWoodStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class BirchWoodStairs extends WoodStairs{
diff --git a/src/pocketmine/block/Block.php b/src/pocketmine/block/Block.php
index f2feab3ef..2bf5099d5 100644
--- a/src/pocketmine/block/Block.php
+++ b/src/pocketmine/block/Block.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * All Block classes are in here
  */
diff --git a/src/pocketmine/block/BlockIds.php b/src/pocketmine/block/BlockIds.php
index 7e3810d93..4cf12eb63 100644
--- a/src/pocketmine/block/BlockIds.php
+++ b/src/pocketmine/block/BlockIds.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 interface BlockIds{
diff --git a/src/pocketmine/block/Bookshelf.php b/src/pocketmine/block/Bookshelf.php
index 97e81dc86..ea00a35c2 100644
--- a/src/pocketmine/block/Bookshelf.php
+++ b/src/pocketmine/block/Bookshelf.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/BrewingStand.php b/src/pocketmine/block/BrewingStand.php
index cf832e27d..36d688f01 100644
--- a/src/pocketmine/block/BrewingStand.php
+++ b/src/pocketmine/block/BrewingStand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/BrickStairs.php b/src/pocketmine/block/BrickStairs.php
index a36c1f797..87e94afca 100644
--- a/src/pocketmine/block/BrickStairs.php
+++ b/src/pocketmine/block/BrickStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Bricks.php b/src/pocketmine/block/Bricks.php
index 0cfb9a97d..edb45b897 100644
--- a/src/pocketmine/block/Bricks.php
+++ b/src/pocketmine/block/Bricks.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/BrownMushroom.php b/src/pocketmine/block/BrownMushroom.php
index 411453c03..0b54d1a39 100644
--- a/src/pocketmine/block/BrownMushroom.php
+++ b/src/pocketmine/block/BrownMushroom.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/BurningFurnace.php b/src/pocketmine/block/BurningFurnace.php
index 2945379e9..2aa612bcd 100644
--- a/src/pocketmine/block/BurningFurnace.php
+++ b/src/pocketmine/block/BurningFurnace.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Cactus.php b/src/pocketmine/block/Cactus.php
index 72a3a8435..fd39c2450 100644
--- a/src/pocketmine/block/Cactus.php
+++ b/src/pocketmine/block/Cactus.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/block/Cake.php b/src/pocketmine/block/Cake.php
index 17d1419b8..3b43dbae7 100644
--- a/src/pocketmine/block/Cake.php
+++ b/src/pocketmine/block/Cake.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/block/Carpet.php b/src/pocketmine/block/Carpet.php
index f14f75e7c..6201d86ba 100644
--- a/src/pocketmine/block/Carpet.php
+++ b/src/pocketmine/block/Carpet.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Carrot.php b/src/pocketmine/block/Carrot.php
index 45b33ee1f..2e13d5bb2 100644
--- a/src/pocketmine/block/Carrot.php
+++ b/src/pocketmine/block/Carrot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Chest.php b/src/pocketmine/block/Chest.php
index 6ab84125f..24db4af0a 100644
--- a/src/pocketmine/block/Chest.php
+++ b/src/pocketmine/block/Chest.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Clay.php b/src/pocketmine/block/Clay.php
index 9c08ccf64..989b20d52 100644
--- a/src/pocketmine/block/Clay.php
+++ b/src/pocketmine/block/Clay.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Coal.php b/src/pocketmine/block/Coal.php
index f35de2469..3ea29656f 100644
--- a/src/pocketmine/block/Coal.php
+++ b/src/pocketmine/block/Coal.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/CoalOre.php b/src/pocketmine/block/CoalOre.php
index 199ad5a77..d6342c671 100644
--- a/src/pocketmine/block/CoalOre.php
+++ b/src/pocketmine/block/CoalOre.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Cobblestone.php b/src/pocketmine/block/Cobblestone.php
index ecf62eaf5..c5376b5c0 100644
--- a/src/pocketmine/block/Cobblestone.php
+++ b/src/pocketmine/block/Cobblestone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/CobblestoneStairs.php b/src/pocketmine/block/CobblestoneStairs.php
index b15a3bed3..c13783a7e 100644
--- a/src/pocketmine/block/CobblestoneStairs.php
+++ b/src/pocketmine/block/CobblestoneStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Cobweb.php b/src/pocketmine/block/Cobweb.php
index 227f1f918..3d2fc189c 100644
--- a/src/pocketmine/block/Cobweb.php
+++ b/src/pocketmine/block/Cobweb.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/block/CocoaBlock.php b/src/pocketmine/block/CocoaBlock.php
index 70d3c67e0..f3b8cafb3 100644
--- a/src/pocketmine/block/CocoaBlock.php
+++ b/src/pocketmine/block/CocoaBlock.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class CocoaBlock extends Solid{
diff --git a/src/pocketmine/block/Crops.php b/src/pocketmine/block/Crops.php
index 16b7bdb86..a5a389b7e 100644
--- a/src/pocketmine/block/Crops.php
+++ b/src/pocketmine/block/Crops.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\block\BlockGrowEvent;
diff --git a/src/pocketmine/block/Dandelion.php b/src/pocketmine/block/Dandelion.php
index cf7df9b0d..640ef44f5 100644
--- a/src/pocketmine/block/Dandelion.php
+++ b/src/pocketmine/block/Dandelion.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/DarkOakWoodStairs.php b/src/pocketmine/block/DarkOakWoodStairs.php
index 811daa480..b126d7af9 100644
--- a/src/pocketmine/block/DarkOakWoodStairs.php
+++ b/src/pocketmine/block/DarkOakWoodStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class DarkOakWoodStairs extends WoodStairs{
diff --git a/src/pocketmine/block/DaylightSensor.php b/src/pocketmine/block/DaylightSensor.php
index 94d6405c4..423b65a98 100644
--- a/src/pocketmine/block/DaylightSensor.php
+++ b/src/pocketmine/block/DaylightSensor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class DaylightSensor extends Transparent{
diff --git a/src/pocketmine/block/DeadBush.php b/src/pocketmine/block/DeadBush.php
index 7af11e8e1..a2c2fec63 100644
--- a/src/pocketmine/block/DeadBush.php
+++ b/src/pocketmine/block/DeadBush.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/block/DetectorRail.php b/src/pocketmine/block/DetectorRail.php
index b90270254..9c7a321dc 100644
--- a/src/pocketmine/block/DetectorRail.php
+++ b/src/pocketmine/block/DetectorRail.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class DetectorRail extends Rail{
diff --git a/src/pocketmine/block/Diamond.php b/src/pocketmine/block/Diamond.php
index c5b73e0b4..1c3fb8cb0 100644
--- a/src/pocketmine/block/Diamond.php
+++ b/src/pocketmine/block/Diamond.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/DiamondOre.php b/src/pocketmine/block/DiamondOre.php
index 59a99650c..188dd5d12 100644
--- a/src/pocketmine/block/DiamondOre.php
+++ b/src/pocketmine/block/DiamondOre.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Dirt.php b/src/pocketmine/block/Dirt.php
index 24889e753..5acc8e3e2 100644
--- a/src/pocketmine/block/Dirt.php
+++ b/src/pocketmine/block/Dirt.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Door.php b/src/pocketmine/block/Door.php
index 89e297d0d..ce6735e69 100644
--- a/src/pocketmine/block/Door.php
+++ b/src/pocketmine/block/Door.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/DoublePlant.php b/src/pocketmine/block/DoublePlant.php
index 1bc74f610..a9cea11ba 100644
--- a/src/pocketmine/block/DoublePlant.php
+++ b/src/pocketmine/block/DoublePlant.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/DoubleSlab.php b/src/pocketmine/block/DoubleSlab.php
index 6c4434a54..021038bce 100644
--- a/src/pocketmine/block/DoubleSlab.php
+++ b/src/pocketmine/block/DoubleSlab.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/DoubleWoodSlab.php b/src/pocketmine/block/DoubleWoodSlab.php
index aab6a8477..16c95678a 100644
--- a/src/pocketmine/block/DoubleWoodSlab.php
+++ b/src/pocketmine/block/DoubleWoodSlab.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Emerald.php b/src/pocketmine/block/Emerald.php
index 2e404f580..ec516b154 100644
--- a/src/pocketmine/block/Emerald.php
+++ b/src/pocketmine/block/Emerald.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/EmeraldOre.php b/src/pocketmine/block/EmeraldOre.php
index a24f2da28..b10cf1743 100644
--- a/src/pocketmine/block/EmeraldOre.php
+++ b/src/pocketmine/block/EmeraldOre.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/EnchantingTable.php b/src/pocketmine/block/EnchantingTable.php
index 3558a4aca..b24a60a61 100644
--- a/src/pocketmine/block/EnchantingTable.php
+++ b/src/pocketmine/block/EnchantingTable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\inventory\EnchantInventory;
diff --git a/src/pocketmine/block/EndPortalFrame.php b/src/pocketmine/block/EndPortalFrame.php
index 4204abc18..858ca375e 100644
--- a/src/pocketmine/block/EndPortalFrame.php
+++ b/src/pocketmine/block/EndPortalFrame.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/EndStone.php b/src/pocketmine/block/EndStone.php
index 1681d2ef6..5487b68f2 100644
--- a/src/pocketmine/block/EndStone.php
+++ b/src/pocketmine/block/EndStone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Fallable.php b/src/pocketmine/block/Fallable.php
index 8fb55c630..b44da89a4 100644
--- a/src/pocketmine/block/Fallable.php
+++ b/src/pocketmine/block/Fallable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/block/Farmland.php b/src/pocketmine/block/Farmland.php
index 3acc9b97c..237fb87e7 100644
--- a/src/pocketmine/block/Farmland.php
+++ b/src/pocketmine/block/Farmland.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Fence.php b/src/pocketmine/block/Fence.php
index 969157444..d0480cf70 100644
--- a/src/pocketmine/block/Fence.php
+++ b/src/pocketmine/block/Fence.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/FenceGate.php b/src/pocketmine/block/FenceGate.php
index 5bef35a5f..3d39d8fd8 100644
--- a/src/pocketmine/block/FenceGate.php
+++ b/src/pocketmine/block/FenceGate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/FenceGateAcacia.php b/src/pocketmine/block/FenceGateAcacia.php
index 65ec2dfd1..03b1bc0c2 100644
--- a/src/pocketmine/block/FenceGateAcacia.php
+++ b/src/pocketmine/block/FenceGateAcacia.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/FenceGateBirch.php b/src/pocketmine/block/FenceGateBirch.php
index d9cd97bcc..7a524702d 100644
--- a/src/pocketmine/block/FenceGateBirch.php
+++ b/src/pocketmine/block/FenceGateBirch.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/FenceGateDarkOak.php b/src/pocketmine/block/FenceGateDarkOak.php
index 553c33ed9..44e2d8cc3 100644
--- a/src/pocketmine/block/FenceGateDarkOak.php
+++ b/src/pocketmine/block/FenceGateDarkOak.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/FenceGateJungle.php b/src/pocketmine/block/FenceGateJungle.php
index f7032d399..a0831f213 100644
--- a/src/pocketmine/block/FenceGateJungle.php
+++ b/src/pocketmine/block/FenceGateJungle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/FenceGateSpruce.php b/src/pocketmine/block/FenceGateSpruce.php
index d5cbb6043..3c243dde3 100644
--- a/src/pocketmine/block/FenceGateSpruce.php
+++ b/src/pocketmine/block/FenceGateSpruce.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/Fire.php b/src/pocketmine/block/Fire.php
index e157ab470..b53e604d7 100644
--- a/src/pocketmine/block/Fire.php
+++ b/src/pocketmine/block/Fire.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Arrow;
diff --git a/src/pocketmine/block/Flowable.php b/src/pocketmine/block/Flowable.php
index c88a88d9d..e7cb0de46 100644
--- a/src/pocketmine/block/Flowable.php
+++ b/src/pocketmine/block/Flowable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 abstract class Flowable extends Transparent{
diff --git a/src/pocketmine/block/Flower.php b/src/pocketmine/block/Flower.php
index d30a87a37..ef52b8fa7 100644
--- a/src/pocketmine/block/Flower.php
+++ b/src/pocketmine/block/Flower.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/FlowerPot.php b/src/pocketmine/block/FlowerPot.php
index 1e7a23ceb..74a5c2164 100644
--- a/src/pocketmine/block/FlowerPot.php
+++ b/src/pocketmine/block/FlowerPot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Furnace.php b/src/pocketmine/block/Furnace.php
index 44281446f..3c1fdeae0 100644
--- a/src/pocketmine/block/Furnace.php
+++ b/src/pocketmine/block/Furnace.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/Glass.php b/src/pocketmine/block/Glass.php
index 064a57b85..ce0884c4e 100644
--- a/src/pocketmine/block/Glass.php
+++ b/src/pocketmine/block/Glass.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/GlassPane.php b/src/pocketmine/block/GlassPane.php
index 2eeb57ddc..2d9d3f8c6 100644
--- a/src/pocketmine/block/GlassPane.php
+++ b/src/pocketmine/block/GlassPane.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/GlowingObsidian.php b/src/pocketmine/block/GlowingObsidian.php
index 26b55cfd2..f2f04c25b 100644
--- a/src/pocketmine/block/GlowingObsidian.php
+++ b/src/pocketmine/block/GlowingObsidian.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/GlowingRedstoneOre.php b/src/pocketmine/block/GlowingRedstoneOre.php
index f5e74ac0d..431401f81 100644
--- a/src/pocketmine/block/GlowingRedstoneOre.php
+++ b/src/pocketmine/block/GlowingRedstoneOre.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Glowstone.php b/src/pocketmine/block/Glowstone.php
index 6fd7ca8fd..c581806f9 100644
--- a/src/pocketmine/block/Glowstone.php
+++ b/src/pocketmine/block/Glowstone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Gold.php b/src/pocketmine/block/Gold.php
index 56d465422..6fe7128ec 100644
--- a/src/pocketmine/block/Gold.php
+++ b/src/pocketmine/block/Gold.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/GoldOre.php b/src/pocketmine/block/GoldOre.php
index a0e5183c5..a56ecf5b6 100644
--- a/src/pocketmine/block/GoldOre.php
+++ b/src/pocketmine/block/GoldOre.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Grass.php b/src/pocketmine/block/Grass.php
index a2e9144e3..8270b42e8 100644
--- a/src/pocketmine/block/Grass.php
+++ b/src/pocketmine/block/Grass.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\block\BlockSpreadEvent;
diff --git a/src/pocketmine/block/GrassPath.php b/src/pocketmine/block/GrassPath.php
index 79697f42d..49b7d5ba5 100644
--- a/src/pocketmine/block/GrassPath.php
+++ b/src/pocketmine/block/GrassPath.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Gravel.php b/src/pocketmine/block/Gravel.php
index 2a850fc32..4c5f4abfd 100644
--- a/src/pocketmine/block/Gravel.php
+++ b/src/pocketmine/block/Gravel.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/HardenedClay.php b/src/pocketmine/block/HardenedClay.php
index a3210a707..9e1f2aaaa 100644
--- a/src/pocketmine/block/HardenedClay.php
+++ b/src/pocketmine/block/HardenedClay.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/HayBale.php b/src/pocketmine/block/HayBale.php
index 66a11d3fb..8192dc443 100644
--- a/src/pocketmine/block/HayBale.php
+++ b/src/pocketmine/block/HayBale.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Ice.php b/src/pocketmine/block/Ice.php
index 971bca1cd..7073d534a 100644
--- a/src/pocketmine/block/Ice.php
+++ b/src/pocketmine/block/Ice.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Iron.php b/src/pocketmine/block/Iron.php
index bf18366c7..bf4bc4c16 100644
--- a/src/pocketmine/block/Iron.php
+++ b/src/pocketmine/block/Iron.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/IronBars.php b/src/pocketmine/block/IronBars.php
index 7e531bda4..47ee0f644 100644
--- a/src/pocketmine/block/IronBars.php
+++ b/src/pocketmine/block/IronBars.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/IronDoor.php b/src/pocketmine/block/IronDoor.php
index e7dc9db3f..381b45ce4 100644
--- a/src/pocketmine/block/IronDoor.php
+++ b/src/pocketmine/block/IronDoor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/IronOre.php b/src/pocketmine/block/IronOre.php
index 984b41143..7d5a6880f 100644
--- a/src/pocketmine/block/IronOre.php
+++ b/src/pocketmine/block/IronOre.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/IronTrapdoor.php b/src/pocketmine/block/IronTrapdoor.php
index 83e780b0e..110102d72 100644
--- a/src/pocketmine/block/IronTrapdoor.php
+++ b/src/pocketmine/block/IronTrapdoor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/ItemFrame.php b/src/pocketmine/block/ItemFrame.php
index 397dc5964..94269da1a 100644
--- a/src/pocketmine/block/ItemFrame.php
+++ b/src/pocketmine/block/ItemFrame.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/JungleWoodStairs.php b/src/pocketmine/block/JungleWoodStairs.php
index 1741e9704..523cf4995 100644
--- a/src/pocketmine/block/JungleWoodStairs.php
+++ b/src/pocketmine/block/JungleWoodStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class JungleWoodStairs extends WoodStairs{
diff --git a/src/pocketmine/block/Ladder.php b/src/pocketmine/block/Ladder.php
index c652dc20e..0ced0e655 100644
--- a/src/pocketmine/block/Ladder.php
+++ b/src/pocketmine/block/Ladder.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/block/Lapis.php b/src/pocketmine/block/Lapis.php
index 3b929e227..b0f4cf52e 100644
--- a/src/pocketmine/block/Lapis.php
+++ b/src/pocketmine/block/Lapis.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/LapisOre.php b/src/pocketmine/block/LapisOre.php
index c5234579b..5d850e535 100644
--- a/src/pocketmine/block/LapisOre.php
+++ b/src/pocketmine/block/LapisOre.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Lava.php b/src/pocketmine/block/Lava.php
index d0d07042b..8ed5c6b47 100644
--- a/src/pocketmine/block/Lava.php
+++ b/src/pocketmine/block/Lava.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/block/Leaves.php b/src/pocketmine/block/Leaves.php
index 7afcd2b34..1c6c788d7 100644
--- a/src/pocketmine/block/Leaves.php
+++ b/src/pocketmine/block/Leaves.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\block\LeavesDecayEvent;
diff --git a/src/pocketmine/block/Leaves2.php b/src/pocketmine/block/Leaves2.php
index 64b68258d..fefd20f25 100644
--- a/src/pocketmine/block/Leaves2.php
+++ b/src/pocketmine/block/Leaves2.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\block\LeavesDecayEvent;
diff --git a/src/pocketmine/block/Lever.php b/src/pocketmine/block/Lever.php
index be2dace68..493cd404f 100644
--- a/src/pocketmine/block/Lever.php
+++ b/src/pocketmine/block/Lever.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class Lever extends Flowable{
diff --git a/src/pocketmine/block/Liquid.php b/src/pocketmine/block/Liquid.php
index 79e6730cd..8eb1d2973 100644
--- a/src/pocketmine/block/Liquid.php
+++ b/src/pocketmine/block/Liquid.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/block/LitPumpkin.php b/src/pocketmine/block/LitPumpkin.php
index 88382500f..249f05aa7 100644
--- a/src/pocketmine/block/LitPumpkin.php
+++ b/src/pocketmine/block/LitPumpkin.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class LitPumpkin extends Pumpkin{
diff --git a/src/pocketmine/block/LitRedstoneLamp.php b/src/pocketmine/block/LitRedstoneLamp.php
index c613480e9..b57db747c 100644
--- a/src/pocketmine/block/LitRedstoneLamp.php
+++ b/src/pocketmine/block/LitRedstoneLamp.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class LitRedstoneLamp extends RedstoneLamp{
diff --git a/src/pocketmine/block/LitRedstoneTorch.php b/src/pocketmine/block/LitRedstoneTorch.php
index ad0e02376..0e0e4a20e 100644
--- a/src/pocketmine/block/LitRedstoneTorch.php
+++ b/src/pocketmine/block/LitRedstoneTorch.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class LitRedstoneTorch extends RedstoneTorch{
diff --git a/src/pocketmine/block/Melon.php b/src/pocketmine/block/Melon.php
index de5185925..fdbfdec24 100644
--- a/src/pocketmine/block/Melon.php
+++ b/src/pocketmine/block/Melon.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/MelonStem.php b/src/pocketmine/block/MelonStem.php
index d9d86e217..15932eb43 100644
--- a/src/pocketmine/block/MelonStem.php
+++ b/src/pocketmine/block/MelonStem.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\block\BlockGrowEvent;
diff --git a/src/pocketmine/block/MobHead.php b/src/pocketmine/block/MobHead.php
index ff3d758e2..dfdbf4f06 100644
--- a/src/pocketmine/block/MobHead.php
+++ b/src/pocketmine/block/MobHead.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/MonsterSpawner.php b/src/pocketmine/block/MonsterSpawner.php
index 4330c7911..e06e19f4b 100644
--- a/src/pocketmine/block/MonsterSpawner.php
+++ b/src/pocketmine/block/MonsterSpawner.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/MossStone.php b/src/pocketmine/block/MossStone.php
index 84aaace90..00dc7ef7d 100644
--- a/src/pocketmine/block/MossStone.php
+++ b/src/pocketmine/block/MossStone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Mycelium.php b/src/pocketmine/block/Mycelium.php
index fb6e40c93..b8ffd62bd 100644
--- a/src/pocketmine/block/Mycelium.php
+++ b/src/pocketmine/block/Mycelium.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\block\BlockSpreadEvent;
diff --git a/src/pocketmine/block/NetherBrick.php b/src/pocketmine/block/NetherBrick.php
index 2a11eb7a1..33e70f9be 100644
--- a/src/pocketmine/block/NetherBrick.php
+++ b/src/pocketmine/block/NetherBrick.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/NetherBrickFence.php b/src/pocketmine/block/NetherBrickFence.php
index 1f7c6666c..8b58a3de6 100644
--- a/src/pocketmine/block/NetherBrickFence.php
+++ b/src/pocketmine/block/NetherBrickFence.php
@@ -18,6 +18,8 @@
  *
  *
 */
+
+declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/NetherBrickStairs.php b/src/pocketmine/block/NetherBrickStairs.php
index eece0e80f..1b935f1ea 100644
--- a/src/pocketmine/block/NetherBrickStairs.php
+++ b/src/pocketmine/block/NetherBrickStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Netherrack.php b/src/pocketmine/block/Netherrack.php
index e9bd5cdc7..905addf5c 100644
--- a/src/pocketmine/block/Netherrack.php
+++ b/src/pocketmine/block/Netherrack.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/NoteBlock.php b/src/pocketmine/block/NoteBlock.php
index 6c19d8ae8..d03c65669 100644
--- a/src/pocketmine/block/NoteBlock.php
+++ b/src/pocketmine/block/NoteBlock.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class NoteBlock extends Solid{
diff --git a/src/pocketmine/block/Obsidian.php b/src/pocketmine/block/Obsidian.php
index e15b25af6..439325892 100644
--- a/src/pocketmine/block/Obsidian.php
+++ b/src/pocketmine/block/Obsidian.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/PackedIce.php b/src/pocketmine/block/PackedIce.php
index b199d1174..fe36a1644 100644
--- a/src/pocketmine/block/PackedIce.php
+++ b/src/pocketmine/block/PackedIce.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Planks.php b/src/pocketmine/block/Planks.php
index 0b145d705..850b56bb7 100644
--- a/src/pocketmine/block/Planks.php
+++ b/src/pocketmine/block/Planks.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Podzol.php b/src/pocketmine/block/Podzol.php
index f56c96cf6..0219614ee 100644
--- a/src/pocketmine/block/Podzol.php
+++ b/src/pocketmine/block/Podzol.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Potato.php b/src/pocketmine/block/Potato.php
index 6f8aa7830..cf1cbfa2f 100644
--- a/src/pocketmine/block/Potato.php
+++ b/src/pocketmine/block/Potato.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/PoweredRail.php b/src/pocketmine/block/PoweredRail.php
index 28b411a7c..de9dff4b1 100644
--- a/src/pocketmine/block/PoweredRail.php
+++ b/src/pocketmine/block/PoweredRail.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class PoweredRail extends Rail{
diff --git a/src/pocketmine/block/Prismarine.php b/src/pocketmine/block/Prismarine.php
index ba8e76c13..71fb17093 100644
--- a/src/pocketmine/block/Prismarine.php
+++ b/src/pocketmine/block/Prismarine.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Pumpkin.php b/src/pocketmine/block/Pumpkin.php
index c030dfb00..235754483 100644
--- a/src/pocketmine/block/Pumpkin.php
+++ b/src/pocketmine/block/Pumpkin.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/PumpkinStem.php b/src/pocketmine/block/PumpkinStem.php
index d88c00e21..7259912df 100644
--- a/src/pocketmine/block/PumpkinStem.php
+++ b/src/pocketmine/block/PumpkinStem.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\block\BlockGrowEvent;
diff --git a/src/pocketmine/block/Quartz.php b/src/pocketmine/block/Quartz.php
index dbe171224..a6d8c7233 100644
--- a/src/pocketmine/block/Quartz.php
+++ b/src/pocketmine/block/Quartz.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/QuartzStairs.php b/src/pocketmine/block/QuartzStairs.php
index f04a1b6c6..f8f6d62b2 100644
--- a/src/pocketmine/block/QuartzStairs.php
+++ b/src/pocketmine/block/QuartzStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Rail.php b/src/pocketmine/block/Rail.php
index bfa7fb538..0afbd7bb0 100644
--- a/src/pocketmine/block/Rail.php
+++ b/src/pocketmine/block/Rail.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class Rail extends Flowable{
diff --git a/src/pocketmine/block/RedMushroom.php b/src/pocketmine/block/RedMushroom.php
index 177dbe1b7..a76c00ca1 100644
--- a/src/pocketmine/block/RedMushroom.php
+++ b/src/pocketmine/block/RedMushroom.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Redstone.php b/src/pocketmine/block/Redstone.php
index 279306b59..97ff3fc96 100644
--- a/src/pocketmine/block/Redstone.php
+++ b/src/pocketmine/block/Redstone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/RedstoneLamp.php b/src/pocketmine/block/RedstoneLamp.php
index 84bbd0503..92b0cf09a 100644
--- a/src/pocketmine/block/RedstoneLamp.php
+++ b/src/pocketmine/block/RedstoneLamp.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class RedstoneLamp extends Solid{
diff --git a/src/pocketmine/block/RedstoneOre.php b/src/pocketmine/block/RedstoneOre.php
index b41273b24..a965b9f9a 100644
--- a/src/pocketmine/block/RedstoneOre.php
+++ b/src/pocketmine/block/RedstoneOre.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/RedstoneTorch.php b/src/pocketmine/block/RedstoneTorch.php
index 32e4bb77a..b4e2d23d9 100644
--- a/src/pocketmine/block/RedstoneTorch.php
+++ b/src/pocketmine/block/RedstoneTorch.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class RedstoneTorch extends Torch{
diff --git a/src/pocketmine/block/Sand.php b/src/pocketmine/block/Sand.php
index be1f1592c..f594d8276 100644
--- a/src/pocketmine/block/Sand.php
+++ b/src/pocketmine/block/Sand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Sandstone.php b/src/pocketmine/block/Sandstone.php
index aa4e2d1f0..89b3c6111 100644
--- a/src/pocketmine/block/Sandstone.php
+++ b/src/pocketmine/block/Sandstone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/SandstoneStairs.php b/src/pocketmine/block/SandstoneStairs.php
index 5bd5a1faa..b22daf1d6 100644
--- a/src/pocketmine/block/SandstoneStairs.php
+++ b/src/pocketmine/block/SandstoneStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Sapling.php b/src/pocketmine/block/Sapling.php
index 1359cac4f..9bef03bd8 100644
--- a/src/pocketmine/block/Sapling.php
+++ b/src/pocketmine/block/Sapling.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/SeaLantern.php b/src/pocketmine/block/SeaLantern.php
index 816231b35..b20fafd53 100644
--- a/src/pocketmine/block/SeaLantern.php
+++ b/src/pocketmine/block/SeaLantern.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/SignPost.php b/src/pocketmine/block/SignPost.php
index 3df18271d..93a6508aa 100644
--- a/src/pocketmine/block/SignPost.php
+++ b/src/pocketmine/block/SignPost.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Slab.php b/src/pocketmine/block/Slab.php
index 120b09f03..65fb967ff 100644
--- a/src/pocketmine/block/Slab.php
+++ b/src/pocketmine/block/Slab.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Snow.php b/src/pocketmine/block/Snow.php
index b8b80f04a..a7499e82a 100644
--- a/src/pocketmine/block/Snow.php
+++ b/src/pocketmine/block/Snow.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/SnowLayer.php b/src/pocketmine/block/SnowLayer.php
index 0ff9ddee9..ebbe26c48 100644
--- a/src/pocketmine/block/SnowLayer.php
+++ b/src/pocketmine/block/SnowLayer.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Solid.php b/src/pocketmine/block/Solid.php
index 09b7e849f..720b734be 100644
--- a/src/pocketmine/block/Solid.php
+++ b/src/pocketmine/block/Solid.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 abstract class Solid extends Block{
diff --git a/src/pocketmine/block/SoulSand.php b/src/pocketmine/block/SoulSand.php
index 856031959..af761a275 100644
--- a/src/pocketmine/block/SoulSand.php
+++ b/src/pocketmine/block/SoulSand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Sponge.php b/src/pocketmine/block/Sponge.php
index c447cea83..c819437cb 100644
--- a/src/pocketmine/block/Sponge.php
+++ b/src/pocketmine/block/Sponge.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/SpruceWoodStairs.php b/src/pocketmine/block/SpruceWoodStairs.php
index 246738da0..7d46245a8 100644
--- a/src/pocketmine/block/SpruceWoodStairs.php
+++ b/src/pocketmine/block/SpruceWoodStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class SpruceWoodStairs extends WoodStairs{
diff --git a/src/pocketmine/block/StainedClay.php b/src/pocketmine/block/StainedClay.php
index 0bb1a5856..d3bf674d5 100644
--- a/src/pocketmine/block/StainedClay.php
+++ b/src/pocketmine/block/StainedClay.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Stair.php b/src/pocketmine/block/Stair.php
index 24b8bf203..85489f214 100644
--- a/src/pocketmine/block/Stair.php
+++ b/src/pocketmine/block/Stair.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/StillLava.php b/src/pocketmine/block/StillLava.php
index 41734a420..c867fe787 100644
--- a/src/pocketmine/block/StillLava.php
+++ b/src/pocketmine/block/StillLava.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/block/StillWater.php b/src/pocketmine/block/StillWater.php
index e3aba14f3..856f6fac0 100644
--- a/src/pocketmine/block/StillWater.php
+++ b/src/pocketmine/block/StillWater.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/block/Stone.php b/src/pocketmine/block/Stone.php
index 0bc175f35..e6c798fdd 100644
--- a/src/pocketmine/block/Stone.php
+++ b/src/pocketmine/block/Stone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/StoneBrickStairs.php b/src/pocketmine/block/StoneBrickStairs.php
index 81f740f51..495e4f67c 100644
--- a/src/pocketmine/block/StoneBrickStairs.php
+++ b/src/pocketmine/block/StoneBrickStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/StoneBricks.php b/src/pocketmine/block/StoneBricks.php
index ab051e7c1..f03b40fe6 100644
--- a/src/pocketmine/block/StoneBricks.php
+++ b/src/pocketmine/block/StoneBricks.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/StoneButton.php b/src/pocketmine/block/StoneButton.php
index 455f544fe..a6365f0db 100644
--- a/src/pocketmine/block/StoneButton.php
+++ b/src/pocketmine/block/StoneButton.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class StoneButton extends Flowable{
diff --git a/src/pocketmine/block/StonePressurePlate.php b/src/pocketmine/block/StonePressurePlate.php
index e5ae7ca14..bd014ebec 100644
--- a/src/pocketmine/block/StonePressurePlate.php
+++ b/src/pocketmine/block/StonePressurePlate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class StonePressurePlate extends Transparent{
diff --git a/src/pocketmine/block/StoneWall.php b/src/pocketmine/block/StoneWall.php
index 9660fa95f..f7ebd5290 100644
--- a/src/pocketmine/block/StoneWall.php
+++ b/src/pocketmine/block/StoneWall.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Stonecutter.php b/src/pocketmine/block/Stonecutter.php
index 428abea55..ecccb2312 100644
--- a/src/pocketmine/block/Stonecutter.php
+++ b/src/pocketmine/block/Stonecutter.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Sugarcane.php b/src/pocketmine/block/Sugarcane.php
index 1a497c60b..89c621244 100644
--- a/src/pocketmine/block/Sugarcane.php
+++ b/src/pocketmine/block/Sugarcane.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\event\block\BlockGrowEvent;
diff --git a/src/pocketmine/block/TNT.php b/src/pocketmine/block/TNT.php
index 27afcd34a..7556a59d3 100644
--- a/src/pocketmine/block/TNT.php
+++ b/src/pocketmine/block/TNT.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/block/TallGrass.php b/src/pocketmine/block/TallGrass.php
index bdb2bda88..8c090a118 100644
--- a/src/pocketmine/block/TallGrass.php
+++ b/src/pocketmine/block/TallGrass.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Thin.php b/src/pocketmine/block/Thin.php
index 205390363..f780d3cd5 100644
--- a/src/pocketmine/block/Thin.php
+++ b/src/pocketmine/block/Thin.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\math\AxisAlignedBB;
diff --git a/src/pocketmine/block/Torch.php b/src/pocketmine/block/Torch.php
index 78cf35e82..8a51cc14a 100644
--- a/src/pocketmine/block/Torch.php
+++ b/src/pocketmine/block/Torch.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Transparent.php b/src/pocketmine/block/Transparent.php
index 3b03cd911..00cf6d554 100644
--- a/src/pocketmine/block/Transparent.php
+++ b/src/pocketmine/block/Transparent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/Trapdoor.php b/src/pocketmine/block/Trapdoor.php
index 789a2ba76..add4d6a1a 100644
--- a/src/pocketmine/block/Trapdoor.php
+++ b/src/pocketmine/block/Trapdoor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/TrappedChest.php b/src/pocketmine/block/TrappedChest.php
index 3c8ffdb00..98473ddd7 100644
--- a/src/pocketmine/block/TrappedChest.php
+++ b/src/pocketmine/block/TrappedChest.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class TrappedChest extends Chest{
diff --git a/src/pocketmine/block/Tripwire.php b/src/pocketmine/block/Tripwire.php
index 109afd9a4..6d21c9dcc 100644
--- a/src/pocketmine/block/Tripwire.php
+++ b/src/pocketmine/block/Tripwire.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class Tripwire extends Flowable{
diff --git a/src/pocketmine/block/TripwireHook.php b/src/pocketmine/block/TripwireHook.php
index 4f5892ced..fdeec43ed 100644
--- a/src/pocketmine/block/TripwireHook.php
+++ b/src/pocketmine/block/TripwireHook.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class TripwireHook extends Flowable{
diff --git a/src/pocketmine/block/UnknownBlock.php b/src/pocketmine/block/UnknownBlock.php
index 11d6cfb7a..d2a8f7c54 100644
--- a/src/pocketmine/block/UnknownBlock.php
+++ b/src/pocketmine/block/UnknownBlock.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class UnknownBlock extends Transparent{
diff --git a/src/pocketmine/block/Vine.php b/src/pocketmine/block/Vine.php
index 256477511..be0dbdb52 100644
--- a/src/pocketmine/block/Vine.php
+++ b/src/pocketmine/block/Vine.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/block/WallSign.php b/src/pocketmine/block/WallSign.php
index f320a9ba5..0d105f58a 100644
--- a/src/pocketmine/block/WallSign.php
+++ b/src/pocketmine/block/WallSign.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/block/Water.php b/src/pocketmine/block/Water.php
index 236bb15a4..ae3503cba 100644
--- a/src/pocketmine/block/Water.php
+++ b/src/pocketmine/block/Water.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/block/WaterLily.php b/src/pocketmine/block/WaterLily.php
index 555051829..6bc3188cc 100644
--- a/src/pocketmine/block/WaterLily.php
+++ b/src/pocketmine/block/WaterLily.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/WeightedPressurePlateHeavy.php b/src/pocketmine/block/WeightedPressurePlateHeavy.php
index 88ce298df..844b4f4c8 100644
--- a/src/pocketmine/block/WeightedPressurePlateHeavy.php
+++ b/src/pocketmine/block/WeightedPressurePlateHeavy.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class WeightedPressurePlateHeavy extends WeightedPressurePlateLight{
diff --git a/src/pocketmine/block/WeightedPressurePlateLight.php b/src/pocketmine/block/WeightedPressurePlateLight.php
index f5dce7447..5fca5f031 100644
--- a/src/pocketmine/block/WeightedPressurePlateLight.php
+++ b/src/pocketmine/block/WeightedPressurePlateLight.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class WeightedPressurePlateLight extends Transparent{
diff --git a/src/pocketmine/block/Wheat.php b/src/pocketmine/block/Wheat.php
index 1ec06f9f4..28a64bdda 100644
--- a/src/pocketmine/block/Wheat.php
+++ b/src/pocketmine/block/Wheat.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Wood.php b/src/pocketmine/block/Wood.php
index a5c575fd5..570190633 100644
--- a/src/pocketmine/block/Wood.php
+++ b/src/pocketmine/block/Wood.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Wood2.php b/src/pocketmine/block/Wood2.php
index 208636fb0..2b2a45d6f 100644
--- a/src/pocketmine/block/Wood2.php
+++ b/src/pocketmine/block/Wood2.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 
diff --git a/src/pocketmine/block/WoodDoor.php b/src/pocketmine/block/WoodDoor.php
index 7c0810a7d..b985064f7 100644
--- a/src/pocketmine/block/WoodDoor.php
+++ b/src/pocketmine/block/WoodDoor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/WoodSlab.php b/src/pocketmine/block/WoodSlab.php
index 109b4bcba..af904dccc 100644
--- a/src/pocketmine/block/WoodSlab.php
+++ b/src/pocketmine/block/WoodSlab.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/WoodStairs.php b/src/pocketmine/block/WoodStairs.php
index d9e2059bc..79819902a 100644
--- a/src/pocketmine/block/WoodStairs.php
+++ b/src/pocketmine/block/WoodStairs.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/WoodenButton.php b/src/pocketmine/block/WoodenButton.php
index ac1448fd4..3e9d667c7 100644
--- a/src/pocketmine/block/WoodenButton.php
+++ b/src/pocketmine/block/WoodenButton.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class WoodenButton extends StoneButton{
diff --git a/src/pocketmine/block/WoodenPressurePlate.php b/src/pocketmine/block/WoodenPressurePlate.php
index e77d0d925..09be38f71 100644
--- a/src/pocketmine/block/WoodenPressurePlate.php
+++ b/src/pocketmine/block/WoodenPressurePlate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 class WoodenPressurePlate extends StonePressurePlate{
diff --git a/src/pocketmine/block/Wool.php b/src/pocketmine/block/Wool.php
index 0c612c856..b55bcfe90 100644
--- a/src/pocketmine/block/Wool.php
+++ b/src/pocketmine/block/Wool.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Tool;
diff --git a/src/pocketmine/block/Workbench.php b/src/pocketmine/block/Workbench.php
index 48b8a956c..c948b4972 100644
--- a/src/pocketmine/block/Workbench.php
+++ b/src/pocketmine/block/Workbench.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/command/Command.php b/src/pocketmine/command/Command.php
index 0795665ac..65f6b5411 100644
--- a/src/pocketmine/command/Command.php
+++ b/src/pocketmine/command/Command.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Command handling related classes
  */
diff --git a/src/pocketmine/command/CommandExecutor.php b/src/pocketmine/command/CommandExecutor.php
index 582333eab..244840c0e 100644
--- a/src/pocketmine/command/CommandExecutor.php
+++ b/src/pocketmine/command/CommandExecutor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
 
diff --git a/src/pocketmine/command/CommandMap.php b/src/pocketmine/command/CommandMap.php
index 1a4be7906..212384139 100644
--- a/src/pocketmine/command/CommandMap.php
+++ b/src/pocketmine/command/CommandMap.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
 
diff --git a/src/pocketmine/command/CommandReader.php b/src/pocketmine/command/CommandReader.php
index fcfaa984d..e8bab2a84 100644
--- a/src/pocketmine/command/CommandReader.php
+++ b/src/pocketmine/command/CommandReader.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\command;
 
diff --git a/src/pocketmine/command/CommandSender.php b/src/pocketmine/command/CommandSender.php
index 3b03cb063..4c21bd841 100644
--- a/src/pocketmine/command/CommandSender.php
+++ b/src/pocketmine/command/CommandSender.php
@@ -19,14 +19,17 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
+use pocketmine\event\TextContainer;
 use pocketmine\permission\Permissible;
 
 interface CommandSender extends Permissible{
 
 	/**
-	 * @param string $message
+	 * @param TextContainer|string $message
 	 */
 	public function sendMessage($message);
 
diff --git a/src/pocketmine/command/ConsoleCommandSender.php b/src/pocketmine/command/ConsoleCommandSender.php
index e34211203..5f9afa1d5 100644
--- a/src/pocketmine/command/ConsoleCommandSender.php
+++ b/src/pocketmine/command/ConsoleCommandSender.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
 use pocketmine\event\TextContainer;
@@ -100,7 +102,7 @@ class ConsoleCommandSender implements CommandSender{
 	}
 
 	/**
-	 * @param string $message
+	 * @param TextContainer|string $message
 	 */
 	public function sendMessage($message){
 		if($message instanceof TextContainer){
diff --git a/src/pocketmine/command/FormattedCommandAlias.php b/src/pocketmine/command/FormattedCommandAlias.php
index 1a8e7c529..1ddde2c42 100644
--- a/src/pocketmine/command/FormattedCommandAlias.php
+++ b/src/pocketmine/command/FormattedCommandAlias.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
 use pocketmine\event\TranslationContainer;
diff --git a/src/pocketmine/command/PluginCommand.php b/src/pocketmine/command/PluginCommand.php
index eb5fe1dc7..44813e9b4 100644
--- a/src/pocketmine/command/PluginCommand.php
+++ b/src/pocketmine/command/PluginCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
 use pocketmine\event\TranslationContainer;
diff --git a/src/pocketmine/command/PluginIdentifiableCommand.php b/src/pocketmine/command/PluginIdentifiableCommand.php
index 26ebddaf5..a8054484a 100644
--- a/src/pocketmine/command/PluginIdentifiableCommand.php
+++ b/src/pocketmine/command/PluginIdentifiableCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
 interface PluginIdentifiableCommand{
diff --git a/src/pocketmine/command/RemoteConsoleCommandSender.php b/src/pocketmine/command/RemoteConsoleCommandSender.php
index 525de2ed5..57bf2b546 100644
--- a/src/pocketmine/command/RemoteConsoleCommandSender.php
+++ b/src/pocketmine/command/RemoteConsoleCommandSender.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
 use pocketmine\event\TextContainer;
diff --git a/src/pocketmine/command/SimpleCommandMap.php b/src/pocketmine/command/SimpleCommandMap.php
index 9d934bede..ffc46cf10 100644
--- a/src/pocketmine/command/SimpleCommandMap.php
+++ b/src/pocketmine/command/SimpleCommandMap.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command;
 
 use pocketmine\command\defaults\BanCommand;
diff --git a/src/pocketmine/command/defaults/BanCommand.php b/src/pocketmine/command/defaults/BanCommand.php
index 96e276062..090d5113e 100644
--- a/src/pocketmine/command/defaults/BanCommand.php
+++ b/src/pocketmine/command/defaults/BanCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/BanIpCommand.php b/src/pocketmine/command/defaults/BanIpCommand.php
index de5cfc572..ffdad06d3 100644
--- a/src/pocketmine/command/defaults/BanIpCommand.php
+++ b/src/pocketmine/command/defaults/BanIpCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/BanListCommand.php b/src/pocketmine/command/defaults/BanListCommand.php
index f63c6e213..659d6b9d0 100644
--- a/src/pocketmine/command/defaults/BanListCommand.php
+++ b/src/pocketmine/command/defaults/BanListCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/DefaultGamemodeCommand.php b/src/pocketmine/command/defaults/DefaultGamemodeCommand.php
index 7acf8a5c7..cd2b6aa6f 100644
--- a/src/pocketmine/command/defaults/DefaultGamemodeCommand.php
+++ b/src/pocketmine/command/defaults/DefaultGamemodeCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/DeopCommand.php b/src/pocketmine/command/defaults/DeopCommand.php
index a54970587..6e9cc162c 100644
--- a/src/pocketmine/command/defaults/DeopCommand.php
+++ b/src/pocketmine/command/defaults/DeopCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/DifficultyCommand.php b/src/pocketmine/command/defaults/DifficultyCommand.php
index 64650a47f..c3921ddf5 100644
--- a/src/pocketmine/command/defaults/DifficultyCommand.php
+++ b/src/pocketmine/command/defaults/DifficultyCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/DumpMemoryCommand.php b/src/pocketmine/command/defaults/DumpMemoryCommand.php
index abd8f9a90..715948e64 100644
--- a/src/pocketmine/command/defaults/DumpMemoryCommand.php
+++ b/src/pocketmine/command/defaults/DumpMemoryCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/EffectCommand.php b/src/pocketmine/command/defaults/EffectCommand.php
index 559d5576a..f011e67e0 100644
--- a/src/pocketmine/command/defaults/EffectCommand.php
+++ b/src/pocketmine/command/defaults/EffectCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/EnchantCommand.php b/src/pocketmine/command/defaults/EnchantCommand.php
index 0915a2932..42ad15fdf 100644
--- a/src/pocketmine/command/defaults/EnchantCommand.php
+++ b/src/pocketmine/command/defaults/EnchantCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/GamemodeCommand.php b/src/pocketmine/command/defaults/GamemodeCommand.php
index 331c5953e..90ceb4a2f 100644
--- a/src/pocketmine/command/defaults/GamemodeCommand.php
+++ b/src/pocketmine/command/defaults/GamemodeCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/GarbageCollectorCommand.php b/src/pocketmine/command/defaults/GarbageCollectorCommand.php
index 0d6843ac3..b39c53fd7 100644
--- a/src/pocketmine/command/defaults/GarbageCollectorCommand.php
+++ b/src/pocketmine/command/defaults/GarbageCollectorCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/GiveCommand.php b/src/pocketmine/command/defaults/GiveCommand.php
index a8bcb84e2..710478d20 100644
--- a/src/pocketmine/command/defaults/GiveCommand.php
+++ b/src/pocketmine/command/defaults/GiveCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/HelpCommand.php b/src/pocketmine/command/defaults/HelpCommand.php
index bf64a24a2..9d56ced46 100644
--- a/src/pocketmine/command/defaults/HelpCommand.php
+++ b/src/pocketmine/command/defaults/HelpCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/KickCommand.php b/src/pocketmine/command/defaults/KickCommand.php
index 326fd1933..e5b603dd8 100644
--- a/src/pocketmine/command/defaults/KickCommand.php
+++ b/src/pocketmine/command/defaults/KickCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/KillCommand.php b/src/pocketmine/command/defaults/KillCommand.php
index 5241f0925..d161c47a6 100644
--- a/src/pocketmine/command/defaults/KillCommand.php
+++ b/src/pocketmine/command/defaults/KillCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/ListCommand.php b/src/pocketmine/command/defaults/ListCommand.php
index 26305a9f4..7945f5d29 100644
--- a/src/pocketmine/command/defaults/ListCommand.php
+++ b/src/pocketmine/command/defaults/ListCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/MeCommand.php b/src/pocketmine/command/defaults/MeCommand.php
index f25730fef..af5e5af3f 100644
--- a/src/pocketmine/command/defaults/MeCommand.php
+++ b/src/pocketmine/command/defaults/MeCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/OpCommand.php b/src/pocketmine/command/defaults/OpCommand.php
index 8ffc997d6..ac6f9e9b9 100644
--- a/src/pocketmine/command/defaults/OpCommand.php
+++ b/src/pocketmine/command/defaults/OpCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/PardonCommand.php b/src/pocketmine/command/defaults/PardonCommand.php
index d8df7ae71..a927613db 100644
--- a/src/pocketmine/command/defaults/PardonCommand.php
+++ b/src/pocketmine/command/defaults/PardonCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/PardonIpCommand.php b/src/pocketmine/command/defaults/PardonIpCommand.php
index 32229356a..4fd60df6d 100644
--- a/src/pocketmine/command/defaults/PardonIpCommand.php
+++ b/src/pocketmine/command/defaults/PardonIpCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/ParticleCommand.php b/src/pocketmine/command/defaults/ParticleCommand.php
index e63bb9bc7..0e7c5dec4 100644
--- a/src/pocketmine/command/defaults/ParticleCommand.php
+++ b/src/pocketmine/command/defaults/ParticleCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/command/defaults/PluginsCommand.php b/src/pocketmine/command/defaults/PluginsCommand.php
index 2ae5ead72..804a15338 100644
--- a/src/pocketmine/command/defaults/PluginsCommand.php
+++ b/src/pocketmine/command/defaults/PluginsCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/ReloadCommand.php b/src/pocketmine/command/defaults/ReloadCommand.php
index 2118dfb80..e8a4b1c3e 100644
--- a/src/pocketmine/command/defaults/ReloadCommand.php
+++ b/src/pocketmine/command/defaults/ReloadCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/SaveCommand.php b/src/pocketmine/command/defaults/SaveCommand.php
index 6a110a97f..b37ee0eee 100644
--- a/src/pocketmine/command/defaults/SaveCommand.php
+++ b/src/pocketmine/command/defaults/SaveCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/SaveOffCommand.php b/src/pocketmine/command/defaults/SaveOffCommand.php
index 0d6fdcba5..33fa17dd0 100644
--- a/src/pocketmine/command/defaults/SaveOffCommand.php
+++ b/src/pocketmine/command/defaults/SaveOffCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/SaveOnCommand.php b/src/pocketmine/command/defaults/SaveOnCommand.php
index 34a458c70..8220774a9 100644
--- a/src/pocketmine/command/defaults/SaveOnCommand.php
+++ b/src/pocketmine/command/defaults/SaveOnCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/SayCommand.php b/src/pocketmine/command/defaults/SayCommand.php
index b4f55e357..d5c5a0de3 100644
--- a/src/pocketmine/command/defaults/SayCommand.php
+++ b/src/pocketmine/command/defaults/SayCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/SeedCommand.php b/src/pocketmine/command/defaults/SeedCommand.php
index 093cf8ffe..b6d8a915d 100644
--- a/src/pocketmine/command/defaults/SeedCommand.php
+++ b/src/pocketmine/command/defaults/SeedCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/SetWorldSpawnCommand.php b/src/pocketmine/command/defaults/SetWorldSpawnCommand.php
index 3af6e2899..089b9c363 100644
--- a/src/pocketmine/command/defaults/SetWorldSpawnCommand.php
+++ b/src/pocketmine/command/defaults/SetWorldSpawnCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/SpawnpointCommand.php b/src/pocketmine/command/defaults/SpawnpointCommand.php
index 1712404dd..39ee16b77 100644
--- a/src/pocketmine/command/defaults/SpawnpointCommand.php
+++ b/src/pocketmine/command/defaults/SpawnpointCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/StatusCommand.php b/src/pocketmine/command/defaults/StatusCommand.php
index ac8fb80de..551a49e46 100644
--- a/src/pocketmine/command/defaults/StatusCommand.php
+++ b/src/pocketmine/command/defaults/StatusCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/StopCommand.php b/src/pocketmine/command/defaults/StopCommand.php
index e1f1e35e9..c4e25a2e8 100644
--- a/src/pocketmine/command/defaults/StopCommand.php
+++ b/src/pocketmine/command/defaults/StopCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/TeleportCommand.php b/src/pocketmine/command/defaults/TeleportCommand.php
index 08cf5de2e..8807c576e 100644
--- a/src/pocketmine/command/defaults/TeleportCommand.php
+++ b/src/pocketmine/command/defaults/TeleportCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/TellCommand.php b/src/pocketmine/command/defaults/TellCommand.php
index 353333920..5ef903ee7 100644
--- a/src/pocketmine/command/defaults/TellCommand.php
+++ b/src/pocketmine/command/defaults/TellCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/TimeCommand.php b/src/pocketmine/command/defaults/TimeCommand.php
index 570fd5ad4..bb6124389 100644
--- a/src/pocketmine/command/defaults/TimeCommand.php
+++ b/src/pocketmine/command/defaults/TimeCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/TimingsCommand.php b/src/pocketmine/command/defaults/TimingsCommand.php
index a28587275..0ea2bcd65 100644
--- a/src/pocketmine/command/defaults/TimingsCommand.php
+++ b/src/pocketmine/command/defaults/TimingsCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/TitleCommand.php b/src/pocketmine/command/defaults/TitleCommand.php
index 68423c842..dc432ce51 100644
--- a/src/pocketmine/command/defaults/TitleCommand.php
+++ b/src/pocketmine/command/defaults/TitleCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/TransferServerCommand.php b/src/pocketmine/command/defaults/TransferServerCommand.php
index b87fccc6e..78f4b0f4b 100644
--- a/src/pocketmine/command/defaults/TransferServerCommand.php
+++ b/src/pocketmine/command/defaults/TransferServerCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\command\defaults;
 
diff --git a/src/pocketmine/command/defaults/VanillaCommand.php b/src/pocketmine/command/defaults/VanillaCommand.php
index ba74e7584..951893337 100644
--- a/src/pocketmine/command/defaults/VanillaCommand.php
+++ b/src/pocketmine/command/defaults/VanillaCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/command/defaults/VersionCommand.php b/src/pocketmine/command/defaults/VersionCommand.php
index e18651b56..e48356fd5 100644
--- a/src/pocketmine/command/defaults/VersionCommand.php
+++ b/src/pocketmine/command/defaults/VersionCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/command/defaults/WhitelistCommand.php b/src/pocketmine/command/defaults/WhitelistCommand.php
index 51caf42c6..44d71eb40 100644
--- a/src/pocketmine/command/defaults/WhitelistCommand.php
+++ b/src/pocketmine/command/defaults/WhitelistCommand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/entity/Ageable.php b/src/pocketmine/entity/Ageable.php
index c5994c5f1..f6aa95090 100644
--- a/src/pocketmine/entity/Ageable.php
+++ b/src/pocketmine/entity/Ageable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/Animal.php b/src/pocketmine/entity/Animal.php
index 66ce9c273..6ef2da7eb 100644
--- a/src/pocketmine/entity/Animal.php
+++ b/src/pocketmine/entity/Animal.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/Arrow.php b/src/pocketmine/entity/Arrow.php
index 8e78ff197..eebbe5131 100644
--- a/src/pocketmine/entity/Arrow.php
+++ b/src/pocketmine/entity/Arrow.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/entity/Attribute.php b/src/pocketmine/entity/Attribute.php
index 7e1f3000e..89eea5759 100644
--- a/src/pocketmine/entity/Attribute.php
+++ b/src/pocketmine/entity/Attribute.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 class Attribute{
diff --git a/src/pocketmine/entity/AttributeMap.php b/src/pocketmine/entity/AttributeMap.php
index b74492f08..7544df2ef 100644
--- a/src/pocketmine/entity/AttributeMap.php
+++ b/src/pocketmine/entity/AttributeMap.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 class AttributeMap implements \ArrayAccess{
diff --git a/src/pocketmine/entity/Creature.php b/src/pocketmine/entity/Creature.php
index 0d2318b5f..1f088bc1a 100644
--- a/src/pocketmine/entity/Creature.php
+++ b/src/pocketmine/entity/Creature.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/Damageable.php b/src/pocketmine/entity/Damageable.php
index e66fe29c2..2d7bc1062 100644
--- a/src/pocketmine/entity/Damageable.php
+++ b/src/pocketmine/entity/Damageable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/Effect.php b/src/pocketmine/entity/Effect.php
index 1bbecf88f..9d96adf22 100644
--- a/src/pocketmine/entity/Effect.php
+++ b/src/pocketmine/entity/Effect.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\event\entity\EntityDamageEvent;
diff --git a/src/pocketmine/entity/Entity.php b/src/pocketmine/entity/Entity.php
index 93522088d..c18a475b1 100644
--- a/src/pocketmine/entity/Entity.php
+++ b/src/pocketmine/entity/Entity.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * All the entity classes
  */
diff --git a/src/pocketmine/entity/Explosive.php b/src/pocketmine/entity/Explosive.php
index eb4341cb0..c26d5abd5 100644
--- a/src/pocketmine/entity/Explosive.php
+++ b/src/pocketmine/entity/Explosive.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/FallingSand.php b/src/pocketmine/entity/FallingSand.php
index c643edfa8..b5d58f998 100644
--- a/src/pocketmine/entity/FallingSand.php
+++ b/src/pocketmine/entity/FallingSand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/entity/Human.php b/src/pocketmine/entity/Human.php
index fbe014c2b..855fd8afe 100644
--- a/src/pocketmine/entity/Human.php
+++ b/src/pocketmine/entity/Human.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\event\entity\EntityDamageEvent;
@@ -62,7 +64,7 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 	public $eyeHeight = 1.62;
 
 	protected $skinId;
-	protected $skin = null;
+	protected $skin = "";
 
 	protected $foodTickTimer = 0;
 
@@ -70,7 +72,7 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 	protected $xpSeed;
 
 	public function __construct(Level $level, CompoundTag $nbt){
-		if($this->skin === null and (!isset($nbt->Skin) or !isset($nbt->Skin->Data) or !Player::isValidSkin($nbt->Skin->Data->getValue()))){
+		if($this->skin === "" and (!isset($nbt->Skin) or !isset($nbt->Skin->Data) or !Player::isValidSkin($nbt->Skin->Data->getValue()))){
 			throw new \InvalidStateException((new \ReflectionClass($this))->getShortName() . " must have a valid skin set");
 		}
 
@@ -248,7 +250,7 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 		$this->attributeMap->getAttribute(Attribute::EXPERIENCE)->setValue($progress);
 	}
 
-	public function getTotalXp() : float{
+	public function getTotalXp() : int{
 		return $this->totalXp;
 	}
 
@@ -291,7 +293,7 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 				$this->setSkin($this->namedtag->Skin["Data"], $this->namedtag->Skin["Name"]);
 			}
 
-			$this->uuid = UUID::fromData($this->getId(), $this->getSkinData(), $this->getNameTag());
+			$this->uuid = UUID::fromData((string) $this->getId(), $this->getSkinData(), $this->getNameTag());
 		}
 
 		if(isset($this->namedtag->Inventory) and $this->namedtag->Inventory instanceof ListTag){
@@ -315,21 +317,21 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 		parent::initEntity();
 
 		if(!isset($this->namedtag->foodLevel) or !($this->namedtag->foodLevel instanceof IntTag)){
-			$this->namedtag->foodLevel = new IntTag("foodLevel", $this->getFood());
+			$this->namedtag->foodLevel = new IntTag("foodLevel", (int) $this->getFood());
 		}else{
-			$this->setFood($this->namedtag["foodLevel"]);
+			$this->setFood((float) $this->namedtag["foodLevel"]);
 		}
 
-		if(!isset($this->namedtag->foodExhaustionLevel) or !($this->namedtag->foodExhaustionLevel instanceof IntTag)){
+		if(!isset($this->namedtag->foodExhaustionLevel) or !($this->namedtag->foodExhaustionLevel instanceof FloatTag)){
 			$this->namedtag->foodExhaustionLevel = new FloatTag("foodExhaustionLevel", $this->getExhaustion());
 		}else{
-			$this->setExhaustion($this->namedtag["foodExhaustionLevel"]);
+			$this->setExhaustion((float) $this->namedtag["foodExhaustionLevel"]);
 		}
 
-		if(!isset($this->namedtag->foodSaturationLevel) or !($this->namedtag->foodSaturationLevel instanceof IntTag)){
+		if(!isset($this->namedtag->foodSaturationLevel) or !($this->namedtag->foodSaturationLevel instanceof FloatTag)){
 			$this->namedtag->foodSaturationLevel = new FloatTag("foodSaturationLevel", $this->getSaturation());
 		}else{
-			$this->setSaturation($this->namedtag["foodSaturationLevel"]);
+			$this->setSaturation((float) $this->namedtag["foodSaturationLevel"]);
 		}
 
 		if(!isset($this->namedtag->foodTickTimer) or !($this->namedtag->foodTickTimer instanceof IntTag)){
@@ -341,7 +343,7 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 		if(!isset($this->namedtag->XpLevel) or !($this->namedtag->XpLevel instanceof IntTag)){
 			$this->namedtag->XpLevel = new IntTag("XpLevel", $this->getXpLevel());
 		}else{
-			$this->setXpLevel($this->namedtag["XpLevel"]);
+			$this->setXpLevel((int) $this->namedtag["XpLevel"]);
 		}
 
 		if(!isset($this->namedtag->XpP) or !($this->namedtag->XpP instanceof FloatTag)){
@@ -431,7 +433,7 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 	public function saveNBT(){
 		parent::saveNBT();
 
-		$this->namedtag->foodLevel = new IntTag("foodLevel", $this->getFood());
+		$this->namedtag->foodLevel = new IntTag("foodLevel", (int) $this->getFood());
 		$this->namedtag->foodExhaustionLevel = new FloatTag("foodExhaustionLevel", $this->getExhaustion());
 		$this->namedtag->foodSaturationLevel = new FloatTag("foodSaturationLevel", $this->getSaturation());
 		$this->namedtag->foodTickTimer = new IntTag("foodTickTimer", $this->foodTickTimer);
diff --git a/src/pocketmine/entity/Item.php b/src/pocketmine/entity/Item.php
index 602288460..8f3b99a6f 100644
--- a/src/pocketmine/entity/Item.php
+++ b/src/pocketmine/entity/Item.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\event\entity\EntityDamageEvent;
diff --git a/src/pocketmine/entity/Living.php b/src/pocketmine/entity/Living.php
index 0f7c60818..5836c40f9 100644
--- a/src/pocketmine/entity/Living.php
+++ b/src/pocketmine/entity/Living.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/entity/Monster.php b/src/pocketmine/entity/Monster.php
index d4fe86ee9..5a65053bf 100644
--- a/src/pocketmine/entity/Monster.php
+++ b/src/pocketmine/entity/Monster.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/NPC.php b/src/pocketmine/entity/NPC.php
index 16f92cfcd..5877cb4e4 100644
--- a/src/pocketmine/entity/NPC.php
+++ b/src/pocketmine/entity/NPC.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/PrimedTNT.php b/src/pocketmine/entity/PrimedTNT.php
index 9e133a360..c9d96b3e8 100644
--- a/src/pocketmine/entity/PrimedTNT.php
+++ b/src/pocketmine/entity/PrimedTNT.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\event\entity\EntityDamageEvent;
diff --git a/src/pocketmine/entity/Projectile.php b/src/pocketmine/entity/Projectile.php
index 416c82a9c..8a4b90bf3 100644
--- a/src/pocketmine/entity/Projectile.php
+++ b/src/pocketmine/entity/Projectile.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\event\entity\EntityCombustByEntityEvent;
@@ -72,7 +74,7 @@ abstract class Projectile extends Entity{
 	 * @return int
 	 */
 	public function getResultDamage() : int{
-		return ceil(sqrt($this->motionX ** 2 + $this->motionY ** 2 + $this->motionZ ** 2) * $this->damage);
+		return (int) ceil(sqrt($this->motionX ** 2 + $this->motionY ** 2 + $this->motionZ ** 2) * $this->damage);
 	}
 
 	public function onCollideWithEntity(Entity $entity){
diff --git a/src/pocketmine/entity/ProjectileSource.php b/src/pocketmine/entity/ProjectileSource.php
index 53a9624b5..0f51aebc7 100644
--- a/src/pocketmine/entity/ProjectileSource.php
+++ b/src/pocketmine/entity/ProjectileSource.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/Rideable.php b/src/pocketmine/entity/Rideable.php
index 2b2a216c9..e4ffa840a 100644
--- a/src/pocketmine/entity/Rideable.php
+++ b/src/pocketmine/entity/Rideable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/Snowball.php b/src/pocketmine/entity/Snowball.php
index e38f6f219..52a439d66 100644
--- a/src/pocketmine/entity/Snowball.php
+++ b/src/pocketmine/entity/Snowball.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/entity/Squid.php b/src/pocketmine/entity/Squid.php
index 7777787a6..3d5089914 100644
--- a/src/pocketmine/entity/Squid.php
+++ b/src/pocketmine/entity/Squid.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\event\entity\EntityDamageByEntityEvent;
diff --git a/src/pocketmine/entity/Vehicle.php b/src/pocketmine/entity/Vehicle.php
index deea6d134..0ecd9bcb6 100644
--- a/src/pocketmine/entity/Vehicle.php
+++ b/src/pocketmine/entity/Vehicle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 
diff --git a/src/pocketmine/entity/Villager.php b/src/pocketmine/entity/Villager.php
index 3f876ba56..fd757f4b6 100644
--- a/src/pocketmine/entity/Villager.php
+++ b/src/pocketmine/entity/Villager.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\nbt\tag\IntTag;
diff --git a/src/pocketmine/entity/WaterAnimal.php b/src/pocketmine/entity/WaterAnimal.php
index 2fa7d877d..d47597a4b 100644
--- a/src/pocketmine/entity/WaterAnimal.php
+++ b/src/pocketmine/entity/WaterAnimal.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 abstract class WaterAnimal extends Creature implements Ageable{
diff --git a/src/pocketmine/entity/Zombie.php b/src/pocketmine/entity/Zombie.php
index 5e50e1526..d63dc0eb2 100644
--- a/src/pocketmine/entity/Zombie.php
+++ b/src/pocketmine/entity/Zombie.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\entity;
 
 use pocketmine\event\entity\EntityDamageByEntityEvent;
diff --git a/src/pocketmine/event/Cancellable.php b/src/pocketmine/event/Cancellable.php
index 647df98b7..ff7aeabd9 100644
--- a/src/pocketmine/event/Cancellable.php
+++ b/src/pocketmine/event/Cancellable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 
diff --git a/src/pocketmine/event/Event.php b/src/pocketmine/event/Event.php
index 2b54763d0..a5e6fef75 100644
--- a/src/pocketmine/event/Event.php
+++ b/src/pocketmine/event/Event.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Event related classes
  */
diff --git a/src/pocketmine/event/EventPriority.php b/src/pocketmine/event/EventPriority.php
index 62c07392b..56175320d 100644
--- a/src/pocketmine/event/EventPriority.php
+++ b/src/pocketmine/event/EventPriority.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 
diff --git a/src/pocketmine/event/HandlerList.php b/src/pocketmine/event/HandlerList.php
index 3d66a3461..865ae95af 100644
--- a/src/pocketmine/event/HandlerList.php
+++ b/src/pocketmine/event/HandlerList.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 use pocketmine\plugin\Plugin;
diff --git a/src/pocketmine/event/LevelTimings.php b/src/pocketmine/event/LevelTimings.php
index 52a0ce6fb..d320833eb 100644
--- a/src/pocketmine/event/LevelTimings.php
+++ b/src/pocketmine/event/LevelTimings.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/event/Listener.php b/src/pocketmine/event/Listener.php
index 75361bd00..a4e3a7814 100644
--- a/src/pocketmine/event/Listener.php
+++ b/src/pocketmine/event/Listener.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 interface Listener{
diff --git a/src/pocketmine/event/TextContainer.php b/src/pocketmine/event/TextContainer.php
index 151787a5d..96ae4506a 100644
--- a/src/pocketmine/event/TextContainer.php
+++ b/src/pocketmine/event/TextContainer.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 class TextContainer{
diff --git a/src/pocketmine/event/Timings.php b/src/pocketmine/event/Timings.php
index 636ac1cba..fd8c3c35a 100644
--- a/src/pocketmine/event/Timings.php
+++ b/src/pocketmine/event/Timings.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/TimingsHandler.php b/src/pocketmine/event/TimingsHandler.php
index 64d058c9c..e54d08afb 100644
--- a/src/pocketmine/event/TimingsHandler.php
+++ b/src/pocketmine/event/TimingsHandler.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 use pocketmine\command\defaults\TimingsCommand;
diff --git a/src/pocketmine/event/TranslationContainer.php b/src/pocketmine/event/TranslationContainer.php
index 44c650d27..f71ffcdaa 100644
--- a/src/pocketmine/event/TranslationContainer.php
+++ b/src/pocketmine/event/TranslationContainer.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event;
 
 class TranslationContainer extends TextContainer{
diff --git a/src/pocketmine/event/block/BlockBreakEvent.php b/src/pocketmine/event/block/BlockBreakEvent.php
index 503bd6e05..28a72ad7c 100644
--- a/src/pocketmine/event/block/BlockBreakEvent.php
+++ b/src/pocketmine/event/block/BlockBreakEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\block;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/block/BlockEvent.php b/src/pocketmine/event/block/BlockEvent.php
index dbc4b69a4..0f420f72c 100644
--- a/src/pocketmine/event/block/BlockEvent.php
+++ b/src/pocketmine/event/block/BlockEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 /**
  * Block related events
  */
diff --git a/src/pocketmine/event/block/BlockFormEvent.php b/src/pocketmine/event/block/BlockFormEvent.php
index c757b97d2..53234dd1a 100644
--- a/src/pocketmine/event/block/BlockFormEvent.php
+++ b/src/pocketmine/event/block/BlockFormEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\block;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/block/BlockGrowEvent.php b/src/pocketmine/event/block/BlockGrowEvent.php
index cb2c739a4..9e9508873 100644
--- a/src/pocketmine/event/block/BlockGrowEvent.php
+++ b/src/pocketmine/event/block/BlockGrowEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\block;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/block/BlockPlaceEvent.php b/src/pocketmine/event/block/BlockPlaceEvent.php
index c57755e1c..ef49ed774 100644
--- a/src/pocketmine/event/block/BlockPlaceEvent.php
+++ b/src/pocketmine/event/block/BlockPlaceEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\block;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/block/BlockSpreadEvent.php b/src/pocketmine/event/block/BlockSpreadEvent.php
index d5344d5b9..6601def57 100644
--- a/src/pocketmine/event/block/BlockSpreadEvent.php
+++ b/src/pocketmine/event/block/BlockSpreadEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\block;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/block/BlockUpdateEvent.php b/src/pocketmine/event/block/BlockUpdateEvent.php
index a1d53185e..638821515 100644
--- a/src/pocketmine/event/block/BlockUpdateEvent.php
+++ b/src/pocketmine/event/block/BlockUpdateEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\block;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/block/LeavesDecayEvent.php b/src/pocketmine/event/block/LeavesDecayEvent.php
index 9da0281da..65317ab6a 100644
--- a/src/pocketmine/event/block/LeavesDecayEvent.php
+++ b/src/pocketmine/event/block/LeavesDecayEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\block;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/block/SignChangeEvent.php b/src/pocketmine/event/block/SignChangeEvent.php
index 0ca3deb6a..c60df7fb4 100644
--- a/src/pocketmine/event/block/SignChangeEvent.php
+++ b/src/pocketmine/event/block/SignChangeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\block;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/entity/EntityArmorChangeEvent.php b/src/pocketmine/event/entity/EntityArmorChangeEvent.php
index 775870126..da333fcb1 100644
--- a/src/pocketmine/event/entity/EntityArmorChangeEvent.php
+++ b/src/pocketmine/event/entity/EntityArmorChangeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityBlockChangeEvent.php b/src/pocketmine/event/entity/EntityBlockChangeEvent.php
index 3d19301d0..d12bc4cfc 100644
--- a/src/pocketmine/event/entity/EntityBlockChangeEvent.php
+++ b/src/pocketmine/event/entity/EntityBlockChangeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/entity/EntityCombustByBlockEvent.php b/src/pocketmine/event/entity/EntityCombustByBlockEvent.php
index 614d6128e..f5e508cf2 100644
--- a/src/pocketmine/event/entity/EntityCombustByBlockEvent.php
+++ b/src/pocketmine/event/entity/EntityCombustByBlockEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/entity/EntityCombustByEntityEvent.php b/src/pocketmine/event/entity/EntityCombustByEntityEvent.php
index e72a5e865..53f3272ec 100644
--- a/src/pocketmine/event/entity/EntityCombustByEntityEvent.php
+++ b/src/pocketmine/event/entity/EntityCombustByEntityEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityCombustEvent.php b/src/pocketmine/event/entity/EntityCombustEvent.php
index 0bc0d6c27..a314049cb 100644
--- a/src/pocketmine/event/entity/EntityCombustEvent.php
+++ b/src/pocketmine/event/entity/EntityCombustEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityDamageByBlockEvent.php b/src/pocketmine/event/entity/EntityDamageByBlockEvent.php
index d2c246faa..2bfeea153 100644
--- a/src/pocketmine/event/entity/EntityDamageByBlockEvent.php
+++ b/src/pocketmine/event/entity/EntityDamageByBlockEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/entity/EntityDamageByChildEntityEvent.php b/src/pocketmine/event/entity/EntityDamageByChildEntityEvent.php
index fad8aaef1..335f839d7 100644
--- a/src/pocketmine/event/entity/EntityDamageByChildEntityEvent.php
+++ b/src/pocketmine/event/entity/EntityDamageByChildEntityEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityDamageByEntityEvent.php b/src/pocketmine/event/entity/EntityDamageByEntityEvent.php
index 833445730..ba6f4a9cc 100644
--- a/src/pocketmine/event/entity/EntityDamageByEntityEvent.php
+++ b/src/pocketmine/event/entity/EntityDamageByEntityEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/event/entity/EntityDamageEvent.php b/src/pocketmine/event/entity/EntityDamageEvent.php
index d3eac739e..0a19e92c6 100644
--- a/src/pocketmine/event/entity/EntityDamageEvent.php
+++ b/src/pocketmine/event/entity/EntityDamageEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/event/entity/EntityDeathEvent.php b/src/pocketmine/event/entity/EntityDeathEvent.php
index 51a5ed54e..4ad6c8bca 100644
--- a/src/pocketmine/event/entity/EntityDeathEvent.php
+++ b/src/pocketmine/event/entity/EntityDeathEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Living;
diff --git a/src/pocketmine/event/entity/EntityDespawnEvent.php b/src/pocketmine/event/entity/EntityDespawnEvent.php
index 54fa93b7b..81a199546 100644
--- a/src/pocketmine/event/entity/EntityDespawnEvent.php
+++ b/src/pocketmine/event/entity/EntityDespawnEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Creature;
diff --git a/src/pocketmine/event/entity/EntityEatBlockEvent.php b/src/pocketmine/event/entity/EntityEatBlockEvent.php
index 969dc9a1b..187b20f2c 100644
--- a/src/pocketmine/event/entity/EntityEatBlockEvent.php
+++ b/src/pocketmine/event/entity/EntityEatBlockEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/entity/EntityEatEvent.php b/src/pocketmine/event/entity/EntityEatEvent.php
index c703294c8..6e6849191 100644
--- a/src/pocketmine/event/entity/EntityEatEvent.php
+++ b/src/pocketmine/event/entity/EntityEatEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/event/entity/EntityEatItemEvent.php b/src/pocketmine/event/entity/EntityEatItemEvent.php
index fe57ac6c0..040a8dbdf 100644
--- a/src/pocketmine/event/entity/EntityEatItemEvent.php
+++ b/src/pocketmine/event/entity/EntityEatItemEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityEffectAddEvent.php b/src/pocketmine/event/entity/EntityEffectAddEvent.php
index 715a1df1f..db58a5348 100644
--- a/src/pocketmine/event/entity/EntityEffectAddEvent.php
+++ b/src/pocketmine/event/entity/EntityEffectAddEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/event/entity/EntityEffectEvent.php b/src/pocketmine/event/entity/EntityEffectEvent.php
index 55fb1b895..4c1dedcdd 100644
--- a/src/pocketmine/event/entity/EntityEffectEvent.php
+++ b/src/pocketmine/event/entity/EntityEffectEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/event/entity/EntityEffectRemoveEvent.php b/src/pocketmine/event/entity/EntityEffectRemoveEvent.php
index 9b0c84475..ca6957de5 100644
--- a/src/pocketmine/event/entity/EntityEffectRemoveEvent.php
+++ b/src/pocketmine/event/entity/EntityEffectRemoveEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 class EntityEffectRemoveEvent extends EntityEffectEvent{
diff --git a/src/pocketmine/event/entity/EntityEvent.php b/src/pocketmine/event/entity/EntityEvent.php
index 2cd83d454..e640b1f08 100644
--- a/src/pocketmine/event/entity/EntityEvent.php
+++ b/src/pocketmine/event/entity/EntityEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 /**
  * Entity related Events, like spawn, inventory, attack...
  */
diff --git a/src/pocketmine/event/entity/EntityExplodeEvent.php b/src/pocketmine/event/entity/EntityExplodeEvent.php
index 46476a6eb..ae09abc10 100644
--- a/src/pocketmine/event/entity/EntityExplodeEvent.php
+++ b/src/pocketmine/event/entity/EntityExplodeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/entity/EntityInventoryChangeEvent.php b/src/pocketmine/event/entity/EntityInventoryChangeEvent.php
index 67b128ad0..aafd45ff4 100644
--- a/src/pocketmine/event/entity/EntityInventoryChangeEvent.php
+++ b/src/pocketmine/event/entity/EntityInventoryChangeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityLevelChangeEvent.php b/src/pocketmine/event/entity/EntityLevelChangeEvent.php
index d113d8ca1..06b461bcb 100644
--- a/src/pocketmine/event/entity/EntityLevelChangeEvent.php
+++ b/src/pocketmine/event/entity/EntityLevelChangeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityMotionEvent.php b/src/pocketmine/event/entity/EntityMotionEvent.php
index 92bae83af..27dea5731 100644
--- a/src/pocketmine/event/entity/EntityMotionEvent.php
+++ b/src/pocketmine/event/entity/EntityMotionEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityRegainHealthEvent.php b/src/pocketmine/event/entity/EntityRegainHealthEvent.php
index 14bbd80ac..8e8bccf19 100644
--- a/src/pocketmine/event/entity/EntityRegainHealthEvent.php
+++ b/src/pocketmine/event/entity/EntityRegainHealthEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntityShootBowEvent.php b/src/pocketmine/event/entity/EntityShootBowEvent.php
index 7e973976f..d1e4c7dab 100644
--- a/src/pocketmine/event/entity/EntityShootBowEvent.php
+++ b/src/pocketmine/event/entity/EntityShootBowEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/EntitySpawnEvent.php b/src/pocketmine/event/entity/EntitySpawnEvent.php
index 47fb7759a..8a66d7c12 100644
--- a/src/pocketmine/event/entity/EntitySpawnEvent.php
+++ b/src/pocketmine/event/entity/EntitySpawnEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Creature;
diff --git a/src/pocketmine/event/entity/EntityTeleportEvent.php b/src/pocketmine/event/entity/EntityTeleportEvent.php
index 3b470796b..ef09f819d 100644
--- a/src/pocketmine/event/entity/EntityTeleportEvent.php
+++ b/src/pocketmine/event/entity/EntityTeleportEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/ExplosionPrimeEvent.php b/src/pocketmine/event/entity/ExplosionPrimeEvent.php
index d0dae74b2..b38094e0b 100644
--- a/src/pocketmine/event/entity/ExplosionPrimeEvent.php
+++ b/src/pocketmine/event/entity/ExplosionPrimeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/event/entity/ItemDespawnEvent.php b/src/pocketmine/event/entity/ItemDespawnEvent.php
index 388577c18..0e74a5744 100644
--- a/src/pocketmine/event/entity/ItemDespawnEvent.php
+++ b/src/pocketmine/event/entity/ItemDespawnEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Item;
diff --git a/src/pocketmine/event/entity/ItemSpawnEvent.php b/src/pocketmine/event/entity/ItemSpawnEvent.php
index 77459c615..0fa74c31d 100644
--- a/src/pocketmine/event/entity/ItemSpawnEvent.php
+++ b/src/pocketmine/event/entity/ItemSpawnEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Item;
diff --git a/src/pocketmine/event/entity/ProjectileHitEvent.php b/src/pocketmine/event/entity/ProjectileHitEvent.php
index 1da3406b3..d093db820 100644
--- a/src/pocketmine/event/entity/ProjectileHitEvent.php
+++ b/src/pocketmine/event/entity/ProjectileHitEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Projectile;
diff --git a/src/pocketmine/event/entity/ProjectileLaunchEvent.php b/src/pocketmine/event/entity/ProjectileLaunchEvent.php
index f2104b5a8..2eb4d1ead 100644
--- a/src/pocketmine/event/entity/ProjectileLaunchEvent.php
+++ b/src/pocketmine/event/entity/ProjectileLaunchEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\entity;
 
 use pocketmine\entity\Projectile;
diff --git a/src/pocketmine/event/inventory/CraftItemEvent.php b/src/pocketmine/event/inventory/CraftItemEvent.php
index 2d2146cc3..c0614baa0 100644
--- a/src/pocketmine/event/inventory/CraftItemEvent.php
+++ b/src/pocketmine/event/inventory/CraftItemEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\inventory;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/inventory/FurnaceBurnEvent.php b/src/pocketmine/event/inventory/FurnaceBurnEvent.php
index 3294d9ed1..f3875b1ed 100644
--- a/src/pocketmine/event/inventory/FurnaceBurnEvent.php
+++ b/src/pocketmine/event/inventory/FurnaceBurnEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\inventory;
 
 use pocketmine\event\block\BlockEvent;
diff --git a/src/pocketmine/event/inventory/FurnaceSmeltEvent.php b/src/pocketmine/event/inventory/FurnaceSmeltEvent.php
index cf65d418f..615e42ca5 100644
--- a/src/pocketmine/event/inventory/FurnaceSmeltEvent.php
+++ b/src/pocketmine/event/inventory/FurnaceSmeltEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\inventory;
 
 use pocketmine\event\block\BlockEvent;
diff --git a/src/pocketmine/event/inventory/InventoryCloseEvent.php b/src/pocketmine/event/inventory/InventoryCloseEvent.php
index 843b4df9e..972934515 100644
--- a/src/pocketmine/event/inventory/InventoryCloseEvent.php
+++ b/src/pocketmine/event/inventory/InventoryCloseEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\inventory;
 
 use pocketmine\inventory\Inventory;
diff --git a/src/pocketmine/event/inventory/InventoryEvent.php b/src/pocketmine/event/inventory/InventoryEvent.php
index 479d34453..babaf3ffd 100644
--- a/src/pocketmine/event/inventory/InventoryEvent.php
+++ b/src/pocketmine/event/inventory/InventoryEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 /**
  * Inventory related events
  */
diff --git a/src/pocketmine/event/inventory/InventoryOpenEvent.php b/src/pocketmine/event/inventory/InventoryOpenEvent.php
index 8d400cc90..125c7a493 100644
--- a/src/pocketmine/event/inventory/InventoryOpenEvent.php
+++ b/src/pocketmine/event/inventory/InventoryOpenEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\inventory;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/inventory/InventoryPickupArrowEvent.php b/src/pocketmine/event/inventory/InventoryPickupArrowEvent.php
index 288bc0a59..fe4ff81e9 100644
--- a/src/pocketmine/event/inventory/InventoryPickupArrowEvent.php
+++ b/src/pocketmine/event/inventory/InventoryPickupArrowEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\inventory;
 
 use pocketmine\entity\Arrow;
diff --git a/src/pocketmine/event/inventory/InventoryPickupItemEvent.php b/src/pocketmine/event/inventory/InventoryPickupItemEvent.php
index 18b9d2cf2..75482fbf8 100644
--- a/src/pocketmine/event/inventory/InventoryPickupItemEvent.php
+++ b/src/pocketmine/event/inventory/InventoryPickupItemEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\inventory;
 
 use pocketmine\entity\Item;
diff --git a/src/pocketmine/event/inventory/InventoryTransactionEvent.php b/src/pocketmine/event/inventory/InventoryTransactionEvent.php
index 53a4c4e5f..5eec8c3da 100644
--- a/src/pocketmine/event/inventory/InventoryTransactionEvent.php
+++ b/src/pocketmine/event/inventory/InventoryTransactionEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\inventory;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/level/ChunkEvent.php b/src/pocketmine/event/level/ChunkEvent.php
index 510335086..573b4a9f6 100644
--- a/src/pocketmine/event/level/ChunkEvent.php
+++ b/src/pocketmine/event/level/ChunkEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\event\level;
 
diff --git a/src/pocketmine/event/level/ChunkLoadEvent.php b/src/pocketmine/event/level/ChunkLoadEvent.php
index c0508defa..11b82f1da 100644
--- a/src/pocketmine/event/level/ChunkLoadEvent.php
+++ b/src/pocketmine/event/level/ChunkLoadEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\event\level;
 
diff --git a/src/pocketmine/event/level/ChunkPopulateEvent.php b/src/pocketmine/event/level/ChunkPopulateEvent.php
index b3f2aec8c..1430e1e8e 100644
--- a/src/pocketmine/event/level/ChunkPopulateEvent.php
+++ b/src/pocketmine/event/level/ChunkPopulateEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\level;
 
 /**
diff --git a/src/pocketmine/event/level/ChunkUnloadEvent.php b/src/pocketmine/event/level/ChunkUnloadEvent.php
index 257865a5f..5497a9ee8 100644
--- a/src/pocketmine/event/level/ChunkUnloadEvent.php
+++ b/src/pocketmine/event/level/ChunkUnloadEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\level;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/level/LevelEvent.php b/src/pocketmine/event/level/LevelEvent.php
index 15ec00008..adc9de93b 100644
--- a/src/pocketmine/event/level/LevelEvent.php
+++ b/src/pocketmine/event/level/LevelEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 /**
  * Level related events
  */
diff --git a/src/pocketmine/event/level/LevelInitEvent.php b/src/pocketmine/event/level/LevelInitEvent.php
index 6e18f17f0..eef558d83 100644
--- a/src/pocketmine/event/level/LevelInitEvent.php
+++ b/src/pocketmine/event/level/LevelInitEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\level;
 
 /**
diff --git a/src/pocketmine/event/level/LevelLoadEvent.php b/src/pocketmine/event/level/LevelLoadEvent.php
index 5a711dfbc..17121f421 100644
--- a/src/pocketmine/event/level/LevelLoadEvent.php
+++ b/src/pocketmine/event/level/LevelLoadEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\level;
 
 /**
diff --git a/src/pocketmine/event/level/LevelSaveEvent.php b/src/pocketmine/event/level/LevelSaveEvent.php
index 0fa652d6e..60c7db09f 100644
--- a/src/pocketmine/event/level/LevelSaveEvent.php
+++ b/src/pocketmine/event/level/LevelSaveEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\level;
 
 /**
diff --git a/src/pocketmine/event/level/LevelUnloadEvent.php b/src/pocketmine/event/level/LevelUnloadEvent.php
index 412ca7e97..ddfca0248 100644
--- a/src/pocketmine/event/level/LevelUnloadEvent.php
+++ b/src/pocketmine/event/level/LevelUnloadEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\level;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/level/SpawnChangeEvent.php b/src/pocketmine/event/level/SpawnChangeEvent.php
index cc0e82e90..98219a4eb 100644
--- a/src/pocketmine/event/level/SpawnChangeEvent.php
+++ b/src/pocketmine/event/level/SpawnChangeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\level;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/event/player/PlayerAchievementAwardedEvent.php b/src/pocketmine/event/player/PlayerAchievementAwardedEvent.php
index 671f391fc..419c3bd43 100644
--- a/src/pocketmine/event/player/PlayerAchievementAwardedEvent.php
+++ b/src/pocketmine/event/player/PlayerAchievementAwardedEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerAnimationEvent.php b/src/pocketmine/event/player/PlayerAnimationEvent.php
index 5c979cf60..d75c7b0da 100644
--- a/src/pocketmine/event/player/PlayerAnimationEvent.php
+++ b/src/pocketmine/event/player/PlayerAnimationEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerBedEnterEvent.php b/src/pocketmine/event/player/PlayerBedEnterEvent.php
index 4faf04248..e40462e17 100644
--- a/src/pocketmine/event/player/PlayerBedEnterEvent.php
+++ b/src/pocketmine/event/player/PlayerBedEnterEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/player/PlayerBedLeaveEvent.php b/src/pocketmine/event/player/PlayerBedLeaveEvent.php
index 80d8cb124..e0bfe267e 100644
--- a/src/pocketmine/event/player/PlayerBedLeaveEvent.php
+++ b/src/pocketmine/event/player/PlayerBedLeaveEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/player/PlayerBucketEmptyEvent.php b/src/pocketmine/event/player/PlayerBucketEmptyEvent.php
index 3e0955c53..1266e0679 100644
--- a/src/pocketmine/event/player/PlayerBucketEmptyEvent.php
+++ b/src/pocketmine/event/player/PlayerBucketEmptyEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/player/PlayerBucketEvent.php b/src/pocketmine/event/player/PlayerBucketEvent.php
index f0490b14f..3bf10b768 100644
--- a/src/pocketmine/event/player/PlayerBucketEvent.php
+++ b/src/pocketmine/event/player/PlayerBucketEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/player/PlayerBucketFillEvent.php b/src/pocketmine/event/player/PlayerBucketFillEvent.php
index af19c7bf6..09f8a4c1b 100644
--- a/src/pocketmine/event/player/PlayerBucketFillEvent.php
+++ b/src/pocketmine/event/player/PlayerBucketFillEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/player/PlayerChatEvent.php b/src/pocketmine/event/player/PlayerChatEvent.php
index 4121a025d..39408055a 100644
--- a/src/pocketmine/event/player/PlayerChatEvent.php
+++ b/src/pocketmine/event/player/PlayerChatEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerCommandPreprocessEvent.php b/src/pocketmine/event/player/PlayerCommandPreprocessEvent.php
index bd54b7797..fddf011bb 100644
--- a/src/pocketmine/event/player/PlayerCommandPreprocessEvent.php
+++ b/src/pocketmine/event/player/PlayerCommandPreprocessEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerCreationEvent.php b/src/pocketmine/event/player/PlayerCreationEvent.php
index 1ba47dea2..c67811227 100644
--- a/src/pocketmine/event/player/PlayerCreationEvent.php
+++ b/src/pocketmine/event/player/PlayerCreationEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Event;
diff --git a/src/pocketmine/event/player/PlayerDeathEvent.php b/src/pocketmine/event/player/PlayerDeathEvent.php
index 16bbe33a5..faf8de63d 100644
--- a/src/pocketmine/event/player/PlayerDeathEvent.php
+++ b/src/pocketmine/event/player/PlayerDeathEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\entity\EntityDeathEvent;
@@ -65,7 +67,7 @@ class PlayerDeathEvent extends EntityDeathEvent{
 	}
 
 	/**
-	 * @param string|TextContainer $deathMessage
+	 * @param TextContainer|string $deathMessage
 	 */
 	public function setDeathMessage($deathMessage){
 		$this->deathMessage = $deathMessage;
diff --git a/src/pocketmine/event/player/PlayerDropItemEvent.php b/src/pocketmine/event/player/PlayerDropItemEvent.php
index 0f5cbdd73..a349d0813 100644
--- a/src/pocketmine/event/player/PlayerDropItemEvent.php
+++ b/src/pocketmine/event/player/PlayerDropItemEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerEvent.php b/src/pocketmine/event/player/PlayerEvent.php
index 23d59f89f..e1faf92fc 100644
--- a/src/pocketmine/event/player/PlayerEvent.php
+++ b/src/pocketmine/event/player/PlayerEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 /**
  * Player-only related events
  */
diff --git a/src/pocketmine/event/player/PlayerExhaustEvent.php b/src/pocketmine/event/player/PlayerExhaustEvent.php
index 747988fb5..a9ba4b319 100644
--- a/src/pocketmine/event/player/PlayerExhaustEvent.php
+++ b/src/pocketmine/event/player/PlayerExhaustEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\entity\Human;
diff --git a/src/pocketmine/event/player/PlayerGameModeChangeEvent.php b/src/pocketmine/event/player/PlayerGameModeChangeEvent.php
index dedce2fc9..cc4f1bf52 100644
--- a/src/pocketmine/event/player/PlayerGameModeChangeEvent.php
+++ b/src/pocketmine/event/player/PlayerGameModeChangeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerInteractEvent.php b/src/pocketmine/event/player/PlayerInteractEvent.php
index 905601fa8..6977b5346 100644
--- a/src/pocketmine/event/player/PlayerInteractEvent.php
+++ b/src/pocketmine/event/player/PlayerInteractEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/event/player/PlayerItemConsumeEvent.php b/src/pocketmine/event/player/PlayerItemConsumeEvent.php
index b306230f5..a4e908162 100644
--- a/src/pocketmine/event/player/PlayerItemConsumeEvent.php
+++ b/src/pocketmine/event/player/PlayerItemConsumeEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerItemHeldEvent.php b/src/pocketmine/event/player/PlayerItemHeldEvent.php
index 885f1f17a..e78b43e55 100644
--- a/src/pocketmine/event/player/PlayerItemHeldEvent.php
+++ b/src/pocketmine/event/player/PlayerItemHeldEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerJoinEvent.php b/src/pocketmine/event/player/PlayerJoinEvent.php
index e8cbbb998..ae3dbacfa 100644
--- a/src/pocketmine/event/player/PlayerJoinEvent.php
+++ b/src/pocketmine/event/player/PlayerJoinEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\TextContainer;
diff --git a/src/pocketmine/event/player/PlayerKickEvent.php b/src/pocketmine/event/player/PlayerKickEvent.php
index 27f612fd3..623913e4d 100644
--- a/src/pocketmine/event/player/PlayerKickEvent.php
+++ b/src/pocketmine/event/player/PlayerKickEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerLoginEvent.php b/src/pocketmine/event/player/PlayerLoginEvent.php
index 6d05df41a..c709231f8 100644
--- a/src/pocketmine/event/player/PlayerLoginEvent.php
+++ b/src/pocketmine/event/player/PlayerLoginEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerMoveEvent.php b/src/pocketmine/event/player/PlayerMoveEvent.php
index bf29dd1c0..15dbfddb9 100644
--- a/src/pocketmine/event/player/PlayerMoveEvent.php
+++ b/src/pocketmine/event/player/PlayerMoveEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerPreLoginEvent.php b/src/pocketmine/event/player/PlayerPreLoginEvent.php
index b3df86a1f..0205ded06 100644
--- a/src/pocketmine/event/player/PlayerPreLoginEvent.php
+++ b/src/pocketmine/event/player/PlayerPreLoginEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerQuitEvent.php b/src/pocketmine/event/player/PlayerQuitEvent.php
index efb29e433..a07932b9d 100644
--- a/src/pocketmine/event/player/PlayerQuitEvent.php
+++ b/src/pocketmine/event/player/PlayerQuitEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\TranslationContainer;
diff --git a/src/pocketmine/event/player/PlayerRespawnEvent.php b/src/pocketmine/event/player/PlayerRespawnEvent.php
index 64cc2b6b0..ade4111d2 100644
--- a/src/pocketmine/event/player/PlayerRespawnEvent.php
+++ b/src/pocketmine/event/player/PlayerRespawnEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\level\Position;
diff --git a/src/pocketmine/event/player/PlayerToggleFlightEvent.php b/src/pocketmine/event/player/PlayerToggleFlightEvent.php
index d5d53deba..b40579c75 100644
--- a/src/pocketmine/event/player/PlayerToggleFlightEvent.php
+++ b/src/pocketmine/event/player/PlayerToggleFlightEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerToggleSneakEvent.php b/src/pocketmine/event/player/PlayerToggleSneakEvent.php
index d75decc2a..6ea5b5f9a 100644
--- a/src/pocketmine/event/player/PlayerToggleSneakEvent.php
+++ b/src/pocketmine/event/player/PlayerToggleSneakEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/PlayerToggleSprintEvent.php b/src/pocketmine/event/player/PlayerToggleSprintEvent.php
index a7f17a8ad..4ab6503b0 100644
--- a/src/pocketmine/event/player/PlayerToggleSprintEvent.php
+++ b/src/pocketmine/event/player/PlayerToggleSprintEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\player;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/player/cheat/PlayerCheatEvent.php b/src/pocketmine/event/player/cheat/PlayerCheatEvent.php
index dfeb14164..feda8492b 100644
--- a/src/pocketmine/event/player/cheat/PlayerCheatEvent.php
+++ b/src/pocketmine/event/player/cheat/PlayerCheatEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 /**
  * Events called when a player attempts to cheat
  */
diff --git a/src/pocketmine/event/player/cheat/PlayerIllegalMoveEvent.php b/src/pocketmine/event/player/cheat/PlayerIllegalMoveEvent.php
index f970fdde3..d0e999389 100644
--- a/src/pocketmine/event/player/cheat/PlayerIllegalMoveEvent.php
+++ b/src/pocketmine/event/player/cheat/PlayerIllegalMoveEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 /**
  * Events called when a player attempts to perform movement cheats such as clipping through blocks.
  */
diff --git a/src/pocketmine/event/plugin/PluginDisableEvent.php b/src/pocketmine/event/plugin/PluginDisableEvent.php
index 71f664471..d0f9b03eb 100644
--- a/src/pocketmine/event/plugin/PluginDisableEvent.php
+++ b/src/pocketmine/event/plugin/PluginDisableEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\event\plugin;
 
diff --git a/src/pocketmine/event/plugin/PluginEnableEvent.php b/src/pocketmine/event/plugin/PluginEnableEvent.php
index fef12fe3f..50124412d 100644
--- a/src/pocketmine/event/plugin/PluginEnableEvent.php
+++ b/src/pocketmine/event/plugin/PluginEnableEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\event\plugin;
 
diff --git a/src/pocketmine/event/plugin/PluginEvent.php b/src/pocketmine/event/plugin/PluginEvent.php
index d6a0c9758..dd6362043 100644
--- a/src/pocketmine/event/plugin/PluginEvent.php
+++ b/src/pocketmine/event/plugin/PluginEvent.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Events related Plugin enable / disable events
  */
diff --git a/src/pocketmine/event/server/DataPacketReceiveEvent.php b/src/pocketmine/event/server/DataPacketReceiveEvent.php
index cc5b89360..9f56742eb 100644
--- a/src/pocketmine/event/server/DataPacketReceiveEvent.php
+++ b/src/pocketmine/event/server/DataPacketReceiveEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\server;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/server/DataPacketSendEvent.php b/src/pocketmine/event/server/DataPacketSendEvent.php
index 16848e499..73939aa0e 100644
--- a/src/pocketmine/event/server/DataPacketSendEvent.php
+++ b/src/pocketmine/event/server/DataPacketSendEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\server;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/event/server/LowMemoryEvent.php b/src/pocketmine/event/server/LowMemoryEvent.php
index 8dfe8d3d1..09300d798 100644
--- a/src/pocketmine/event/server/LowMemoryEvent.php
+++ b/src/pocketmine/event/server/LowMemoryEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\server;
 
 use pocketmine\utils\Utils;
diff --git a/src/pocketmine/event/server/QueryRegenerateEvent.php b/src/pocketmine/event/server/QueryRegenerateEvent.php
index 96156198a..538474ce0 100644
--- a/src/pocketmine/event/server/QueryRegenerateEvent.php
+++ b/src/pocketmine/event/server/QueryRegenerateEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\server;
 
 use pocketmine\Server;
diff --git a/src/pocketmine/event/server/RemoteServerCommandEvent.php b/src/pocketmine/event/server/RemoteServerCommandEvent.php
index 412c992c8..92d910ffd 100644
--- a/src/pocketmine/event/server/RemoteServerCommandEvent.php
+++ b/src/pocketmine/event/server/RemoteServerCommandEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\server;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/event/server/ServerCommandEvent.php b/src/pocketmine/event/server/ServerCommandEvent.php
index 6a82e67d7..0b0d62814 100644
--- a/src/pocketmine/event/server/ServerCommandEvent.php
+++ b/src/pocketmine/event/server/ServerCommandEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 namespace pocketmine\event\server;
 
 use pocketmine\command\CommandSender;
diff --git a/src/pocketmine/event/server/ServerEvent.php b/src/pocketmine/event/server/ServerEvent.php
index 3806343f3..81124b615 100644
--- a/src/pocketmine/event/server/ServerEvent.php
+++ b/src/pocketmine/event/server/ServerEvent.php
@@ -19,6 +19,8 @@
  *
  */
 
+declare(strict_types=1);
+
 /**
  * Events related to the server core, like networking, stop, level loading
  */
diff --git a/src/pocketmine/inventory/AnvilInventory.php b/src/pocketmine/inventory/AnvilInventory.php
index b0e0115a7..c679144ae 100644
--- a/src/pocketmine/inventory/AnvilInventory.php
+++ b/src/pocketmine/inventory/AnvilInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\level\Position;
diff --git a/src/pocketmine/inventory/BaseInventory.php b/src/pocketmine/inventory/BaseInventory.php
index aa336a9d4..c88167bcc 100644
--- a/src/pocketmine/inventory/BaseInventory.php
+++ b/src/pocketmine/inventory/BaseInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/inventory/BaseTransaction.php b/src/pocketmine/inventory/BaseTransaction.php
index 904132ffa..a712118ca 100644
--- a/src/pocketmine/inventory/BaseTransaction.php
+++ b/src/pocketmine/inventory/BaseTransaction.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/inventory/BigShapedRecipe.php b/src/pocketmine/inventory/BigShapedRecipe.php
index 927023ed2..85377216f 100644
--- a/src/pocketmine/inventory/BigShapedRecipe.php
+++ b/src/pocketmine/inventory/BigShapedRecipe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 class BigShapedRecipe extends ShapedRecipe{
diff --git a/src/pocketmine/inventory/BigShapelessRecipe.php b/src/pocketmine/inventory/BigShapelessRecipe.php
index 7b565d5d4..62ca3c382 100644
--- a/src/pocketmine/inventory/BigShapelessRecipe.php
+++ b/src/pocketmine/inventory/BigShapelessRecipe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 class BigShapelessRecipe extends ShapelessRecipe{
diff --git a/src/pocketmine/inventory/ChestInventory.php b/src/pocketmine/inventory/ChestInventory.php
index 74cc9910d..04f936bd7 100644
--- a/src/pocketmine/inventory/ChestInventory.php
+++ b/src/pocketmine/inventory/ChestInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/inventory/ContainerInventory.php b/src/pocketmine/inventory/ContainerInventory.php
index 5b1bc652a..e56e9f43e 100644
--- a/src/pocketmine/inventory/ContainerInventory.php
+++ b/src/pocketmine/inventory/ContainerInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/inventory/CraftingInventory.php b/src/pocketmine/inventory/CraftingInventory.php
index 503287a3a..f42c08602 100644
--- a/src/pocketmine/inventory/CraftingInventory.php
+++ b/src/pocketmine/inventory/CraftingInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 /**
diff --git a/src/pocketmine/inventory/CraftingManager.php b/src/pocketmine/inventory/CraftingManager.php
index 5ecbde9df..95fd1cced 100644
--- a/src/pocketmine/inventory/CraftingManager.php
+++ b/src/pocketmine/inventory/CraftingManager.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\event\Timings;
@@ -295,7 +297,7 @@ class CraftingManager{
 	 * @param Recipe $recipe
 	 */
 	public function registerRecipe(Recipe $recipe){
-		$recipe->setId(UUID::fromData(++self::$RECIPE_COUNT, $recipe->getResult()->getId(), $recipe->getResult()->getDamage(), $recipe->getResult()->getCount(), $recipe->getResult()->getCompoundTag()));
+		$recipe->setId(UUID::fromData((string) ++self::$RECIPE_COUNT, (string) $recipe->getResult()->getId(), (string) $recipe->getResult()->getDamage(), (string) $recipe->getResult()->getCount(), $recipe->getResult()->getCompoundTag()));
 
 		if($recipe instanceof ShapedRecipe){
 			$this->registerShapedRecipe($recipe);
diff --git a/src/pocketmine/inventory/CustomInventory.php b/src/pocketmine/inventory/CustomInventory.php
index 6f94fc746..49a3705a0 100644
--- a/src/pocketmine/inventory/CustomInventory.php
+++ b/src/pocketmine/inventory/CustomInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 /**
diff --git a/src/pocketmine/inventory/DoubleChestInventory.php b/src/pocketmine/inventory/DoubleChestInventory.php
index deee9b58f..2441c0cb3 100644
--- a/src/pocketmine/inventory/DoubleChestInventory.php
+++ b/src/pocketmine/inventory/DoubleChestInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/inventory/EnchantInventory.php b/src/pocketmine/inventory/EnchantInventory.php
index 39f21b570..11d3fd154 100644
--- a/src/pocketmine/inventory/EnchantInventory.php
+++ b/src/pocketmine/inventory/EnchantInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\level\Position;
diff --git a/src/pocketmine/inventory/FakeBlockMenu.php b/src/pocketmine/inventory/FakeBlockMenu.php
index d5b2a0a1e..04011ea15 100644
--- a/src/pocketmine/inventory/FakeBlockMenu.php
+++ b/src/pocketmine/inventory/FakeBlockMenu.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\level\Position;
diff --git a/src/pocketmine/inventory/Fuel.php b/src/pocketmine/inventory/Fuel.php
index c1d66f923..ef9586ee4 100644
--- a/src/pocketmine/inventory/Fuel.php
+++ b/src/pocketmine/inventory/Fuel.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/inventory/FurnaceInventory.php b/src/pocketmine/inventory/FurnaceInventory.php
index 7542dea8e..0abd75662 100644
--- a/src/pocketmine/inventory/FurnaceInventory.php
+++ b/src/pocketmine/inventory/FurnaceInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/inventory/FurnaceRecipe.php b/src/pocketmine/inventory/FurnaceRecipe.php
index 34b4dbf81..0216e2749 100644
--- a/src/pocketmine/inventory/FurnaceRecipe.php
+++ b/src/pocketmine/inventory/FurnaceRecipe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/inventory/Inventory.php b/src/pocketmine/inventory/Inventory.php
index 904f0e596..e7ef25d83 100644
--- a/src/pocketmine/inventory/Inventory.php
+++ b/src/pocketmine/inventory/Inventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Handles the creation of virtual inventories or mapped to an InventoryHolder
  */
diff --git a/src/pocketmine/inventory/InventoryHolder.php b/src/pocketmine/inventory/InventoryHolder.php
index 7baf89947..9de57f267 100644
--- a/src/pocketmine/inventory/InventoryHolder.php
+++ b/src/pocketmine/inventory/InventoryHolder.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 interface InventoryHolder{
diff --git a/src/pocketmine/inventory/InventoryType.php b/src/pocketmine/inventory/InventoryType.php
index 4b97db2e9..a6ff58038 100644
--- a/src/pocketmine/inventory/InventoryType.php
+++ b/src/pocketmine/inventory/InventoryType.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\network\mcpe\protocol\types\WindowTypes;
diff --git a/src/pocketmine/inventory/MultiRecipe.php b/src/pocketmine/inventory/MultiRecipe.php
index 962976f48..453e77f63 100644
--- a/src/pocketmine/inventory/MultiRecipe.php
+++ b/src/pocketmine/inventory/MultiRecipe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\utils\UUID;
diff --git a/src/pocketmine/inventory/PlayerInventory.php b/src/pocketmine/inventory/PlayerInventory.php
index cb22ba9ff..b7b5bf41a 100644
--- a/src/pocketmine/inventory/PlayerInventory.php
+++ b/src/pocketmine/inventory/PlayerInventory.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\entity\Human;
diff --git a/src/pocketmine/inventory/Recipe.php b/src/pocketmine/inventory/Recipe.php
index e1aa17374..8a1782bd4 100644
--- a/src/pocketmine/inventory/Recipe.php
+++ b/src/pocketmine/inventory/Recipe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\utils\UUID;
diff --git a/src/pocketmine/inventory/ShapedRecipe.php b/src/pocketmine/inventory/ShapedRecipe.php
index 823e6c453..fda4c8190 100644
--- a/src/pocketmine/inventory/ShapedRecipe.php
+++ b/src/pocketmine/inventory/ShapedRecipe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/inventory/ShapelessRecipe.php b/src/pocketmine/inventory/ShapelessRecipe.php
index 8e5cf8375..91a867cb0 100644
--- a/src/pocketmine/inventory/ShapelessRecipe.php
+++ b/src/pocketmine/inventory/ShapelessRecipe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/inventory/SimpleTransactionGroup.php b/src/pocketmine/inventory/SimpleTransactionGroup.php
index 4e8811cf9..77a8aa8b9 100644
--- a/src/pocketmine/inventory/SimpleTransactionGroup.php
+++ b/src/pocketmine/inventory/SimpleTransactionGroup.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\event\inventory\InventoryTransactionEvent;
diff --git a/src/pocketmine/inventory/SlotType.php b/src/pocketmine/inventory/SlotType.php
index 0f4297f06..65ab00732 100644
--- a/src/pocketmine/inventory/SlotType.php
+++ b/src/pocketmine/inventory/SlotType.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 /**
diff --git a/src/pocketmine/inventory/Transaction.php b/src/pocketmine/inventory/Transaction.php
index edfe9acb9..6dbdfb4f4 100644
--- a/src/pocketmine/inventory/Transaction.php
+++ b/src/pocketmine/inventory/Transaction.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/inventory/TransactionGroup.php b/src/pocketmine/inventory/TransactionGroup.php
index 59f167dfe..b970c6c8c 100644
--- a/src/pocketmine/inventory/TransactionGroup.php
+++ b/src/pocketmine/inventory/TransactionGroup.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\inventory;
 
 interface TransactionGroup{
diff --git a/src/pocketmine/item/Apple.php b/src/pocketmine/item/Apple.php
index 8036e0cda..2a43bc8be 100644
--- a/src/pocketmine/item/Apple.php
+++ b/src/pocketmine/item/Apple.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Armor.php b/src/pocketmine/item/Armor.php
index af5264fbf..27f442706 100644
--- a/src/pocketmine/item/Armor.php
+++ b/src/pocketmine/item/Armor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\item;
 
diff --git a/src/pocketmine/item/Arrow.php b/src/pocketmine/item/Arrow.php
index 733c9770f..ab5300ac3 100644
--- a/src/pocketmine/item/Arrow.php
+++ b/src/pocketmine/item/Arrow.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Arrow extends Item{
diff --git a/src/pocketmine/item/BakedPotato.php b/src/pocketmine/item/BakedPotato.php
index 01af5aefe..a3bf3b31a 100644
--- a/src/pocketmine/item/BakedPotato.php
+++ b/src/pocketmine/item/BakedPotato.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class BakedPotato extends Food{
diff --git a/src/pocketmine/item/Bed.php b/src/pocketmine/item/Bed.php
index 20edc507d..40cc48e96 100644
--- a/src/pocketmine/item/Bed.php
+++ b/src/pocketmine/item/Bed.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Beetroot.php b/src/pocketmine/item/Beetroot.php
index 91028c194..f84157717 100644
--- a/src/pocketmine/item/Beetroot.php
+++ b/src/pocketmine/item/Beetroot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Beetroot extends Food{
diff --git a/src/pocketmine/item/BeetrootSeeds.php b/src/pocketmine/item/BeetrootSeeds.php
index e52a8e626..3536c99a9 100644
--- a/src/pocketmine/item/BeetrootSeeds.php
+++ b/src/pocketmine/item/BeetrootSeeds.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/BeetrootSoup.php b/src/pocketmine/item/BeetrootSoup.php
index a6b0b6456..d6047037e 100644
--- a/src/pocketmine/item/BeetrootSoup.php
+++ b/src/pocketmine/item/BeetrootSoup.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/BlazePowder.php b/src/pocketmine/item/BlazePowder.php
index ca9276cd0..cddf38a41 100644
--- a/src/pocketmine/item/BlazePowder.php
+++ b/src/pocketmine/item/BlazePowder.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class BlazePowder extends Item{
diff --git a/src/pocketmine/item/Boat.php b/src/pocketmine/item/Boat.php
index 9c695c465..222a202f1 100644
--- a/src/pocketmine/item/Boat.php
+++ b/src/pocketmine/item/Boat.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Boat extends Item{
diff --git a/src/pocketmine/item/Bone.php b/src/pocketmine/item/Bone.php
index 05248549f..50661713d 100644
--- a/src/pocketmine/item/Bone.php
+++ b/src/pocketmine/item/Bone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Bone extends Item{
diff --git a/src/pocketmine/item/Book.php b/src/pocketmine/item/Book.php
index 2e202ad3b..ba60042fa 100644
--- a/src/pocketmine/item/Book.php
+++ b/src/pocketmine/item/Book.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Book extends Item{
diff --git a/src/pocketmine/item/Bow.php b/src/pocketmine/item/Bow.php
index d81b8b763..a407dc715 100644
--- a/src/pocketmine/item/Bow.php
+++ b/src/pocketmine/item/Bow.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Bowl.php b/src/pocketmine/item/Bowl.php
index 54f74cf2c..51e6428ca 100644
--- a/src/pocketmine/item/Bowl.php
+++ b/src/pocketmine/item/Bowl.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Bread.php b/src/pocketmine/item/Bread.php
index de38cd97c..a4d74bcd6 100644
--- a/src/pocketmine/item/Bread.php
+++ b/src/pocketmine/item/Bread.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Bread extends Food{
diff --git a/src/pocketmine/item/BrewingStand.php b/src/pocketmine/item/BrewingStand.php
index 414b8d74e..25894a7cd 100644
--- a/src/pocketmine/item/BrewingStand.php
+++ b/src/pocketmine/item/BrewingStand.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class BrewingStand extends Item{
diff --git a/src/pocketmine/item/Brick.php b/src/pocketmine/item/Brick.php
index da2df9f4e..1e2e5d1e4 100644
--- a/src/pocketmine/item/Brick.php
+++ b/src/pocketmine/item/Brick.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Bucket.php b/src/pocketmine/item/Bucket.php
index f1facc5bb..fd82dd169 100644
--- a/src/pocketmine/item/Bucket.php
+++ b/src/pocketmine/item/Bucket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Air;
diff --git a/src/pocketmine/item/Cake.php b/src/pocketmine/item/Cake.php
index c30aee4f8..ade0dac71 100644
--- a/src/pocketmine/item/Cake.php
+++ b/src/pocketmine/item/Cake.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Camera.php b/src/pocketmine/item/Camera.php
index fa3ce6e08..7179a8ecb 100644
--- a/src/pocketmine/item/Camera.php
+++ b/src/pocketmine/item/Camera.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Camera extends Item{
diff --git a/src/pocketmine/item/Carrot.php b/src/pocketmine/item/Carrot.php
index 2a56fe4f6..4a9e0f2fe 100644
--- a/src/pocketmine/item/Carrot.php
+++ b/src/pocketmine/item/Carrot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/ChainBoots.php b/src/pocketmine/item/ChainBoots.php
index 6efb28e1f..9786690b6 100644
--- a/src/pocketmine/item/ChainBoots.php
+++ b/src/pocketmine/item/ChainBoots.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/ChainChestplate.php b/src/pocketmine/item/ChainChestplate.php
index 58eab5d7b..e573e6a24 100644
--- a/src/pocketmine/item/ChainChestplate.php
+++ b/src/pocketmine/item/ChainChestplate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/ChainHelmet.php b/src/pocketmine/item/ChainHelmet.php
index 614c216d4..b6a31f8e9 100644
--- a/src/pocketmine/item/ChainHelmet.php
+++ b/src/pocketmine/item/ChainHelmet.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/ChainLeggings.php b/src/pocketmine/item/ChainLeggings.php
index 0b74fc4f8..90a60bc79 100644
--- a/src/pocketmine/item/ChainLeggings.php
+++ b/src/pocketmine/item/ChainLeggings.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Clay.php b/src/pocketmine/item/Clay.php
index 0a130aefa..d8367885d 100644
--- a/src/pocketmine/item/Clay.php
+++ b/src/pocketmine/item/Clay.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Clay extends Item{
diff --git a/src/pocketmine/item/Clock.php b/src/pocketmine/item/Clock.php
index d873b6aad..993d18815 100644
--- a/src/pocketmine/item/Clock.php
+++ b/src/pocketmine/item/Clock.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Clock extends Item{
diff --git a/src/pocketmine/item/Coal.php b/src/pocketmine/item/Coal.php
index 289a6d452..c75f2b708 100644
--- a/src/pocketmine/item/Coal.php
+++ b/src/pocketmine/item/Coal.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Compass.php b/src/pocketmine/item/Compass.php
index 6f467ffc8..ace5fdcec 100644
--- a/src/pocketmine/item/Compass.php
+++ b/src/pocketmine/item/Compass.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Compass extends Item{
diff --git a/src/pocketmine/item/CookedChicken.php b/src/pocketmine/item/CookedChicken.php
index f5828e609..55369f19c 100644
--- a/src/pocketmine/item/CookedChicken.php
+++ b/src/pocketmine/item/CookedChicken.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class CookedChicken extends Food{
diff --git a/src/pocketmine/item/CookedFish.php b/src/pocketmine/item/CookedFish.php
index bc8dceb4c..168a61c62 100644
--- a/src/pocketmine/item/CookedFish.php
+++ b/src/pocketmine/item/CookedFish.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class CookedFish extends Fish{
diff --git a/src/pocketmine/item/CookedPorkchop.php b/src/pocketmine/item/CookedPorkchop.php
index 0f41f4a84..9b13ebb3d 100644
--- a/src/pocketmine/item/CookedPorkchop.php
+++ b/src/pocketmine/item/CookedPorkchop.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class CookedPorkchop extends Food{
diff --git a/src/pocketmine/item/CookedRabbit.php b/src/pocketmine/item/CookedRabbit.php
index 5544f5bb3..51bca14fa 100644
--- a/src/pocketmine/item/CookedRabbit.php
+++ b/src/pocketmine/item/CookedRabbit.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class CookedRabbit extends Food{
diff --git a/src/pocketmine/item/Cookie.php b/src/pocketmine/item/Cookie.php
index dc7e35ba2..488816c2e 100644
--- a/src/pocketmine/item/Cookie.php
+++ b/src/pocketmine/item/Cookie.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Cookie extends Food{
diff --git a/src/pocketmine/item/Diamond.php b/src/pocketmine/item/Diamond.php
index f48f0e2f9..4b6eb3bbb 100644
--- a/src/pocketmine/item/Diamond.php
+++ b/src/pocketmine/item/Diamond.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondAxe.php b/src/pocketmine/item/DiamondAxe.php
index 38bab87ba..0352a48c9 100644
--- a/src/pocketmine/item/DiamondAxe.php
+++ b/src/pocketmine/item/DiamondAxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondBoots.php b/src/pocketmine/item/DiamondBoots.php
index 327bed9af..7666826b0 100644
--- a/src/pocketmine/item/DiamondBoots.php
+++ b/src/pocketmine/item/DiamondBoots.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondChestplate.php b/src/pocketmine/item/DiamondChestplate.php
index 698636d6d..2aaf9d2ea 100644
--- a/src/pocketmine/item/DiamondChestplate.php
+++ b/src/pocketmine/item/DiamondChestplate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondHelmet.php b/src/pocketmine/item/DiamondHelmet.php
index 3ce8b7228..bb70f7a8f 100644
--- a/src/pocketmine/item/DiamondHelmet.php
+++ b/src/pocketmine/item/DiamondHelmet.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondHoe.php b/src/pocketmine/item/DiamondHoe.php
index df282d6ed..5b99f4047 100644
--- a/src/pocketmine/item/DiamondHoe.php
+++ b/src/pocketmine/item/DiamondHoe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondLeggings.php b/src/pocketmine/item/DiamondLeggings.php
index 39e80c105..997475abf 100644
--- a/src/pocketmine/item/DiamondLeggings.php
+++ b/src/pocketmine/item/DiamondLeggings.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondPickaxe.php b/src/pocketmine/item/DiamondPickaxe.php
index 158439aae..c9414a508 100644
--- a/src/pocketmine/item/DiamondPickaxe.php
+++ b/src/pocketmine/item/DiamondPickaxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondShovel.php b/src/pocketmine/item/DiamondShovel.php
index 7b887b9b3..7edefb0aa 100644
--- a/src/pocketmine/item/DiamondShovel.php
+++ b/src/pocketmine/item/DiamondShovel.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/DiamondSword.php b/src/pocketmine/item/DiamondSword.php
index fb1efb403..2ad11527f 100644
--- a/src/pocketmine/item/DiamondSword.php
+++ b/src/pocketmine/item/DiamondSword.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Dye.php b/src/pocketmine/item/Dye.php
index 0add78146..1bcb77f8a 100644
--- a/src/pocketmine/item/Dye.php
+++ b/src/pocketmine/item/Dye.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Dye extends Item{
diff --git a/src/pocketmine/item/Egg.php b/src/pocketmine/item/Egg.php
index 97818070a..0b1235e0a 100644
--- a/src/pocketmine/item/Egg.php
+++ b/src/pocketmine/item/Egg.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Egg extends Item{
diff --git a/src/pocketmine/item/Emerald.php b/src/pocketmine/item/Emerald.php
index 86f6766af..50a4cd47f 100644
--- a/src/pocketmine/item/Emerald.php
+++ b/src/pocketmine/item/Emerald.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Emerald extends Item{
diff --git a/src/pocketmine/item/Feather.php b/src/pocketmine/item/Feather.php
index a84d0995b..cd11d5e41 100644
--- a/src/pocketmine/item/Feather.php
+++ b/src/pocketmine/item/Feather.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/FermentedSpiderEye.php b/src/pocketmine/item/FermentedSpiderEye.php
index d00230a1a..0a1c67627 100644
--- a/src/pocketmine/item/FermentedSpiderEye.php
+++ b/src/pocketmine/item/FermentedSpiderEye.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class FermentedSpiderEye extends Item{
diff --git a/src/pocketmine/item/Fish.php b/src/pocketmine/item/Fish.php
index 58e5da42f..80f5c9fee 100644
--- a/src/pocketmine/item/Fish.php
+++ b/src/pocketmine/item/Fish.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\entity\Effect;
@@ -49,7 +51,7 @@ class Fish extends Food{
 		}elseif($this->meta === self::FISH_CLOWNFISH){
 			return 1;
 		}elseif($this->meta === self::FISH_PUFFERFISH){
-			return 1.2;
+			return 1;
 		}
 		return 0;
 	}
diff --git a/src/pocketmine/item/FishingRod.php b/src/pocketmine/item/FishingRod.php
index 33858ceba..0c7fb9b41 100644
--- a/src/pocketmine/item/FishingRod.php
+++ b/src/pocketmine/item/FishingRod.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class FishingRod extends Item{
diff --git a/src/pocketmine/item/Flint.php b/src/pocketmine/item/Flint.php
index dc42b987d..a9a5a86a1 100644
--- a/src/pocketmine/item/Flint.php
+++ b/src/pocketmine/item/Flint.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Flint extends Item{
diff --git a/src/pocketmine/item/FlintSteel.php b/src/pocketmine/item/FlintSteel.php
index 7477d2965..912aac4df 100644
--- a/src/pocketmine/item/FlintSteel.php
+++ b/src/pocketmine/item/FlintSteel.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/FlowerPot.php b/src/pocketmine/item/FlowerPot.php
index f18712988..feae14c8c 100644
--- a/src/pocketmine/item/FlowerPot.php
+++ b/src/pocketmine/item/FlowerPot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Food.php b/src/pocketmine/item/Food.php
index 7738ebbe4..48207d9e0 100644
--- a/src/pocketmine/item/Food.php
+++ b/src/pocketmine/item/Food.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/item/FoodSource.php b/src/pocketmine/item/FoodSource.php
index ed3834361..c12c37e35 100644
--- a/src/pocketmine/item/FoodSource.php
+++ b/src/pocketmine/item/FoodSource.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/item/GlassBottle.php b/src/pocketmine/item/GlassBottle.php
index 063442511..cfddc4d9f 100644
--- a/src/pocketmine/item/GlassBottle.php
+++ b/src/pocketmine/item/GlassBottle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class GlassBottle extends Item{
diff --git a/src/pocketmine/item/GlisteringMelon.php b/src/pocketmine/item/GlisteringMelon.php
index 792b1b149..1ef5836b1 100644
--- a/src/pocketmine/item/GlisteringMelon.php
+++ b/src/pocketmine/item/GlisteringMelon.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class GlisteringMelon extends Item{
diff --git a/src/pocketmine/item/GlowstoneDust.php b/src/pocketmine/item/GlowstoneDust.php
index 03599c8a2..4bbc5bf3a 100644
--- a/src/pocketmine/item/GlowstoneDust.php
+++ b/src/pocketmine/item/GlowstoneDust.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class GlowstoneDust extends Item{
diff --git a/src/pocketmine/item/GoldAxe.php b/src/pocketmine/item/GoldAxe.php
index 96a88557c..d97436520 100644
--- a/src/pocketmine/item/GoldAxe.php
+++ b/src/pocketmine/item/GoldAxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldBoots.php b/src/pocketmine/item/GoldBoots.php
index 217ea881b..39af40fea 100644
--- a/src/pocketmine/item/GoldBoots.php
+++ b/src/pocketmine/item/GoldBoots.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldChestplate.php b/src/pocketmine/item/GoldChestplate.php
index d430856ff..2704c9544 100644
--- a/src/pocketmine/item/GoldChestplate.php
+++ b/src/pocketmine/item/GoldChestplate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldHelmet.php b/src/pocketmine/item/GoldHelmet.php
index 2ed8ea2ad..1cbb38562 100644
--- a/src/pocketmine/item/GoldHelmet.php
+++ b/src/pocketmine/item/GoldHelmet.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldHoe.php b/src/pocketmine/item/GoldHoe.php
index 71bb5a7b9..57e16daf1 100644
--- a/src/pocketmine/item/GoldHoe.php
+++ b/src/pocketmine/item/GoldHoe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldIngot.php b/src/pocketmine/item/GoldIngot.php
index 4c58f75ba..99a84f278 100644
--- a/src/pocketmine/item/GoldIngot.php
+++ b/src/pocketmine/item/GoldIngot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldLeggings.php b/src/pocketmine/item/GoldLeggings.php
index 121efe228..fbc4e4db6 100644
--- a/src/pocketmine/item/GoldLeggings.php
+++ b/src/pocketmine/item/GoldLeggings.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldNugget.php b/src/pocketmine/item/GoldNugget.php
index cd9b8ce98..9441a18c8 100644
--- a/src/pocketmine/item/GoldNugget.php
+++ b/src/pocketmine/item/GoldNugget.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class GoldNugget extends Item{
diff --git a/src/pocketmine/item/GoldPickaxe.php b/src/pocketmine/item/GoldPickaxe.php
index 7087f450f..0c9953ca7 100644
--- a/src/pocketmine/item/GoldPickaxe.php
+++ b/src/pocketmine/item/GoldPickaxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldShovel.php b/src/pocketmine/item/GoldShovel.php
index 568348895..0428c33c3 100644
--- a/src/pocketmine/item/GoldShovel.php
+++ b/src/pocketmine/item/GoldShovel.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldSword.php b/src/pocketmine/item/GoldSword.php
index f097b99b1..089edc0b7 100644
--- a/src/pocketmine/item/GoldSword.php
+++ b/src/pocketmine/item/GoldSword.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/GoldenApple.php b/src/pocketmine/item/GoldenApple.php
index acbe4291c..4fe9abc23 100644
--- a/src/pocketmine/item/GoldenApple.php
+++ b/src/pocketmine/item/GoldenApple.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/item/GoldenAppleEnchanted.php b/src/pocketmine/item/GoldenAppleEnchanted.php
index 3681deeaf..b1569d395 100644
--- a/src/pocketmine/item/GoldenAppleEnchanted.php
+++ b/src/pocketmine/item/GoldenAppleEnchanted.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/item/GoldenCarrot.php b/src/pocketmine/item/GoldenCarrot.php
index 6cf07b960..80fcab749 100644
--- a/src/pocketmine/item/GoldenCarrot.php
+++ b/src/pocketmine/item/GoldenCarrot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class GoldenCarrot extends Food{
diff --git a/src/pocketmine/item/Gunpowder.php b/src/pocketmine/item/Gunpowder.php
index 707442f86..3d05e8ea4 100644
--- a/src/pocketmine/item/Gunpowder.php
+++ b/src/pocketmine/item/Gunpowder.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Gunpowder extends Item{
diff --git a/src/pocketmine/item/IronAxe.php b/src/pocketmine/item/IronAxe.php
index 4699e5ad4..0179e2ab7 100644
--- a/src/pocketmine/item/IronAxe.php
+++ b/src/pocketmine/item/IronAxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronBoots.php b/src/pocketmine/item/IronBoots.php
index 46c9d5fb1..fa5ea3dff 100644
--- a/src/pocketmine/item/IronBoots.php
+++ b/src/pocketmine/item/IronBoots.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronChestplate.php b/src/pocketmine/item/IronChestplate.php
index 2f083a11d..ed82c87eb 100644
--- a/src/pocketmine/item/IronChestplate.php
+++ b/src/pocketmine/item/IronChestplate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronDoor.php b/src/pocketmine/item/IronDoor.php
index e39911c0f..28e17d704 100644
--- a/src/pocketmine/item/IronDoor.php
+++ b/src/pocketmine/item/IronDoor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/IronHelmet.php b/src/pocketmine/item/IronHelmet.php
index aa8cad648..e2d3cb594 100644
--- a/src/pocketmine/item/IronHelmet.php
+++ b/src/pocketmine/item/IronHelmet.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronHoe.php b/src/pocketmine/item/IronHoe.php
index 7fd286763..8872a34ea 100644
--- a/src/pocketmine/item/IronHoe.php
+++ b/src/pocketmine/item/IronHoe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronIngot.php b/src/pocketmine/item/IronIngot.php
index eedae422f..451e9adb0 100644
--- a/src/pocketmine/item/IronIngot.php
+++ b/src/pocketmine/item/IronIngot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronLeggings.php b/src/pocketmine/item/IronLeggings.php
index 879c7048d..5cbd3ee57 100644
--- a/src/pocketmine/item/IronLeggings.php
+++ b/src/pocketmine/item/IronLeggings.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronPickaxe.php b/src/pocketmine/item/IronPickaxe.php
index 92c8d6c47..a5add10b3 100644
--- a/src/pocketmine/item/IronPickaxe.php
+++ b/src/pocketmine/item/IronPickaxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronShovel.php b/src/pocketmine/item/IronShovel.php
index 0d4b470ab..2177c8e76 100644
--- a/src/pocketmine/item/IronShovel.php
+++ b/src/pocketmine/item/IronShovel.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/IronSword.php b/src/pocketmine/item/IronSword.php
index 83e6e803a..b1b5db811 100644
--- a/src/pocketmine/item/IronSword.php
+++ b/src/pocketmine/item/IronSword.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Item.php b/src/pocketmine/item/Item.php
index 2305a836c..dc5b1f304 100644
--- a/src/pocketmine/item/Item.php
+++ b/src/pocketmine/item/Item.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * All the Item classes
  */
diff --git a/src/pocketmine/item/ItemBlock.php b/src/pocketmine/item/ItemBlock.php
index 8a61b31aa..192c055dd 100644
--- a/src/pocketmine/item/ItemBlock.php
+++ b/src/pocketmine/item/ItemBlock.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/ItemFrame.php b/src/pocketmine/item/ItemFrame.php
index 0043cb4ee..a59256fc0 100644
--- a/src/pocketmine/item/ItemFrame.php
+++ b/src/pocketmine/item/ItemFrame.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/ItemIds.php b/src/pocketmine/item/ItemIds.php
index 4ecf60d32..183ad4d65 100644
--- a/src/pocketmine/item/ItemIds.php
+++ b/src/pocketmine/item/ItemIds.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\BlockIds;
diff --git a/src/pocketmine/item/Leather.php b/src/pocketmine/item/Leather.php
index e1b69ac5b..412966daa 100644
--- a/src/pocketmine/item/Leather.php
+++ b/src/pocketmine/item/Leather.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Leather extends Item{
diff --git a/src/pocketmine/item/LeatherBoots.php b/src/pocketmine/item/LeatherBoots.php
index 21fd13aed..0f1f10274 100644
--- a/src/pocketmine/item/LeatherBoots.php
+++ b/src/pocketmine/item/LeatherBoots.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/LeatherCap.php b/src/pocketmine/item/LeatherCap.php
index 4ab4906e1..32753ba6b 100644
--- a/src/pocketmine/item/LeatherCap.php
+++ b/src/pocketmine/item/LeatherCap.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/LeatherPants.php b/src/pocketmine/item/LeatherPants.php
index 55503b508..ec38c9e26 100644
--- a/src/pocketmine/item/LeatherPants.php
+++ b/src/pocketmine/item/LeatherPants.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/LeatherTunic.php b/src/pocketmine/item/LeatherTunic.php
index afebd078d..72c3f461d 100644
--- a/src/pocketmine/item/LeatherTunic.php
+++ b/src/pocketmine/item/LeatherTunic.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/MagmaCream.php b/src/pocketmine/item/MagmaCream.php
index 43c13a918..9c8cdd712 100644
--- a/src/pocketmine/item/MagmaCream.php
+++ b/src/pocketmine/item/MagmaCream.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class MagmaCream extends Item{
diff --git a/src/pocketmine/item/Melon.php b/src/pocketmine/item/Melon.php
index 75cefe875..faadabc29 100644
--- a/src/pocketmine/item/Melon.php
+++ b/src/pocketmine/item/Melon.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Melon extends Food{
diff --git a/src/pocketmine/item/MelonSeeds.php b/src/pocketmine/item/MelonSeeds.php
index 05aac6c21..632924b0c 100644
--- a/src/pocketmine/item/MelonSeeds.php
+++ b/src/pocketmine/item/MelonSeeds.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Minecart.php b/src/pocketmine/item/Minecart.php
index 769fcff2b..ce06e9c72 100644
--- a/src/pocketmine/item/Minecart.php
+++ b/src/pocketmine/item/Minecart.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Minecart extends Item{
diff --git a/src/pocketmine/item/MobHead.php b/src/pocketmine/item/MobHead.php
index 07f78ead5..0e9f92193 100644
--- a/src/pocketmine/item/MobHead.php
+++ b/src/pocketmine/item/MobHead.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/MushroomStew.php b/src/pocketmine/item/MushroomStew.php
index 4c315ab9a..309f40a96 100644
--- a/src/pocketmine/item/MushroomStew.php
+++ b/src/pocketmine/item/MushroomStew.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class MushroomStew extends Food{
diff --git a/src/pocketmine/item/NetherBrick.php b/src/pocketmine/item/NetherBrick.php
index 626742dcd..bffa9330c 100644
--- a/src/pocketmine/item/NetherBrick.php
+++ b/src/pocketmine/item/NetherBrick.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class NetherBrick extends Item{
diff --git a/src/pocketmine/item/NetherQuartz.php b/src/pocketmine/item/NetherQuartz.php
index 883ad0c5f..b6835f4e8 100644
--- a/src/pocketmine/item/NetherQuartz.php
+++ b/src/pocketmine/item/NetherQuartz.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class NetherQuartz extends Item{
diff --git a/src/pocketmine/item/NetherStar.php b/src/pocketmine/item/NetherStar.php
index 26dddb73f..80bd348c4 100644
--- a/src/pocketmine/item/NetherStar.php
+++ b/src/pocketmine/item/NetherStar.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/NetherWart.php b/src/pocketmine/item/NetherWart.php
index 951b5456d..c54470fae 100644
--- a/src/pocketmine/item/NetherWart.php
+++ b/src/pocketmine/item/NetherWart.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class NetherWart extends Item{
diff --git a/src/pocketmine/item/Painting.php b/src/pocketmine/item/Painting.php
index efec264bf..124749b17 100644
--- a/src/pocketmine/item/Painting.php
+++ b/src/pocketmine/item/Painting.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Paper.php b/src/pocketmine/item/Paper.php
index e57029225..99f185eca 100644
--- a/src/pocketmine/item/Paper.php
+++ b/src/pocketmine/item/Paper.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Paper extends Item{
diff --git a/src/pocketmine/item/Potato.php b/src/pocketmine/item/Potato.php
index b187d29b4..9369848b9 100644
--- a/src/pocketmine/item/Potato.php
+++ b/src/pocketmine/item/Potato.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Potion.php b/src/pocketmine/item/Potion.php
index af879be24..a8d6f62e3 100644
--- a/src/pocketmine/item/Potion.php
+++ b/src/pocketmine/item/Potion.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/item/PrismarineCrystals.php b/src/pocketmine/item/PrismarineCrystals.php
index b7f3edfed..3ed1ac5b8 100644
--- a/src/pocketmine/item/PrismarineCrystals.php
+++ b/src/pocketmine/item/PrismarineCrystals.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/PrismarineShard.php b/src/pocketmine/item/PrismarineShard.php
index 9f6a92f5d..5e60fc58e 100644
--- a/src/pocketmine/item/PrismarineShard.php
+++ b/src/pocketmine/item/PrismarineShard.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/PumpkinPie.php b/src/pocketmine/item/PumpkinPie.php
index 13953afa5..9f96e8fc3 100644
--- a/src/pocketmine/item/PumpkinPie.php
+++ b/src/pocketmine/item/PumpkinPie.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class PumpkinPie extends Food{
diff --git a/src/pocketmine/item/PumpkinSeeds.php b/src/pocketmine/item/PumpkinSeeds.php
index 152b8f4d8..08f75cc85 100644
--- a/src/pocketmine/item/PumpkinSeeds.php
+++ b/src/pocketmine/item/PumpkinSeeds.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Quartz.php b/src/pocketmine/item/Quartz.php
index a5e56ca91..c67faad3d 100644
--- a/src/pocketmine/item/Quartz.php
+++ b/src/pocketmine/item/Quartz.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Quartz extends Item{
diff --git a/src/pocketmine/item/RawBeef.php b/src/pocketmine/item/RawBeef.php
index c0fde7b0b..bce963e60 100644
--- a/src/pocketmine/item/RawBeef.php
+++ b/src/pocketmine/item/RawBeef.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class RawBeef extends Food{
diff --git a/src/pocketmine/item/RawChicken.php b/src/pocketmine/item/RawChicken.php
index 0f1a7bbd6..a6f211d3b 100644
--- a/src/pocketmine/item/RawChicken.php
+++ b/src/pocketmine/item/RawChicken.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/item/RawPorkchop.php b/src/pocketmine/item/RawPorkchop.php
index eccb75f1b..4c9f58e86 100644
--- a/src/pocketmine/item/RawPorkchop.php
+++ b/src/pocketmine/item/RawPorkchop.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class RawPorkchop extends Item{
diff --git a/src/pocketmine/item/Redstone.php b/src/pocketmine/item/Redstone.php
index 876b1f854..57ffdd899 100644
--- a/src/pocketmine/item/Redstone.php
+++ b/src/pocketmine/item/Redstone.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Redstone extends Item{
diff --git a/src/pocketmine/item/Shears.php b/src/pocketmine/item/Shears.php
index 25bd06387..7c740484f 100644
--- a/src/pocketmine/item/Shears.php
+++ b/src/pocketmine/item/Shears.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/Sign.php b/src/pocketmine/item/Sign.php
index 93d9b81a8..4a0a1ec36 100644
--- a/src/pocketmine/item/Sign.php
+++ b/src/pocketmine/item/Sign.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Slimeball.php b/src/pocketmine/item/Slimeball.php
index cc2c80e44..21b07a799 100644
--- a/src/pocketmine/item/Slimeball.php
+++ b/src/pocketmine/item/Slimeball.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Slimeball extends Item{
diff --git a/src/pocketmine/item/Snowball.php b/src/pocketmine/item/Snowball.php
index 3e3a4f589..52e612c61 100644
--- a/src/pocketmine/item/Snowball.php
+++ b/src/pocketmine/item/Snowball.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/SpawnEgg.php b/src/pocketmine/item/SpawnEgg.php
index 6343f5f6f..d625028e1 100644
--- a/src/pocketmine/item/SpawnEgg.php
+++ b/src/pocketmine/item/SpawnEgg.php
@@ -20,6 +20,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/SpiderEye.php b/src/pocketmine/item/SpiderEye.php
index 049e4c6f9..f669b5239 100644
--- a/src/pocketmine/item/SpiderEye.php
+++ b/src/pocketmine/item/SpiderEye.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\entity\Effect;
diff --git a/src/pocketmine/item/Steak.php b/src/pocketmine/item/Steak.php
index 126795ab4..f93d37350 100644
--- a/src/pocketmine/item/Steak.php
+++ b/src/pocketmine/item/Steak.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Steak extends Food{
diff --git a/src/pocketmine/item/Stick.php b/src/pocketmine/item/Stick.php
index 74d299e13..e927c6563 100644
--- a/src/pocketmine/item/Stick.php
+++ b/src/pocketmine/item/Stick.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/StoneAxe.php b/src/pocketmine/item/StoneAxe.php
index 84321cac5..592b6211f 100644
--- a/src/pocketmine/item/StoneAxe.php
+++ b/src/pocketmine/item/StoneAxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/StoneHoe.php b/src/pocketmine/item/StoneHoe.php
index 36fab4d69..6849e40f5 100644
--- a/src/pocketmine/item/StoneHoe.php
+++ b/src/pocketmine/item/StoneHoe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/StonePickaxe.php b/src/pocketmine/item/StonePickaxe.php
index 58c719a13..fc8d9a1b3 100644
--- a/src/pocketmine/item/StonePickaxe.php
+++ b/src/pocketmine/item/StonePickaxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/StoneShovel.php b/src/pocketmine/item/StoneShovel.php
index d50053f15..85eebd1a2 100644
--- a/src/pocketmine/item/StoneShovel.php
+++ b/src/pocketmine/item/StoneShovel.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/StoneSword.php b/src/pocketmine/item/StoneSword.php
index cff984825..aa3b368a9 100644
--- a/src/pocketmine/item/StoneSword.php
+++ b/src/pocketmine/item/StoneSword.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/StringItem.php b/src/pocketmine/item/StringItem.php
index f6682ec3b..9b68d4c83 100644
--- a/src/pocketmine/item/StringItem.php
+++ b/src/pocketmine/item/StringItem.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class StringItem extends Item{
diff --git a/src/pocketmine/item/Sugar.php b/src/pocketmine/item/Sugar.php
index b50b8c334..65ff2cc14 100644
--- a/src/pocketmine/item/Sugar.php
+++ b/src/pocketmine/item/Sugar.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Sugar extends Item{
diff --git a/src/pocketmine/item/Sugarcane.php b/src/pocketmine/item/Sugarcane.php
index 5fbd5908c..cdc439519 100644
--- a/src/pocketmine/item/Sugarcane.php
+++ b/src/pocketmine/item/Sugarcane.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Tool.php b/src/pocketmine/item/Tool.php
index 31d7e840c..c1621bbb0 100644
--- a/src/pocketmine/item/Tool.php
+++ b/src/pocketmine/item/Tool.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/Wheat.php b/src/pocketmine/item/Wheat.php
index 5e03c5442..ec12acefe 100644
--- a/src/pocketmine/item/Wheat.php
+++ b/src/pocketmine/item/Wheat.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 class Wheat extends Item{
diff --git a/src/pocketmine/item/WheatSeeds.php b/src/pocketmine/item/WheatSeeds.php
index 08224f2c7..0a0173806 100644
--- a/src/pocketmine/item/WheatSeeds.php
+++ b/src/pocketmine/item/WheatSeeds.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/WoodenAxe.php b/src/pocketmine/item/WoodenAxe.php
index afca1d85b..3321a05cf 100644
--- a/src/pocketmine/item/WoodenAxe.php
+++ b/src/pocketmine/item/WoodenAxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/WoodenDoor.php b/src/pocketmine/item/WoodenDoor.php
index 6d7d7b666..dff615336 100644
--- a/src/pocketmine/item/WoodenDoor.php
+++ b/src/pocketmine/item/WoodenDoor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/item/WoodenHoe.php b/src/pocketmine/item/WoodenHoe.php
index 5ab4ea951..d19823164 100644
--- a/src/pocketmine/item/WoodenHoe.php
+++ b/src/pocketmine/item/WoodenHoe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/WoodenPickaxe.php b/src/pocketmine/item/WoodenPickaxe.php
index dcff916ff..e0f59b3f9 100644
--- a/src/pocketmine/item/WoodenPickaxe.php
+++ b/src/pocketmine/item/WoodenPickaxe.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/WoodenShovel.php b/src/pocketmine/item/WoodenShovel.php
index 5ab633c4c..df85b017b 100644
--- a/src/pocketmine/item/WoodenShovel.php
+++ b/src/pocketmine/item/WoodenShovel.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/WoodenSword.php b/src/pocketmine/item/WoodenSword.php
index eb21e4946..4a85a40b5 100644
--- a/src/pocketmine/item/WoodenSword.php
+++ b/src/pocketmine/item/WoodenSword.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item;
 
 
diff --git a/src/pocketmine/item/enchantment/Enchantment.php b/src/pocketmine/item/enchantment/Enchantment.php
index 9ddc7f9fb..45b1e4e96 100644
--- a/src/pocketmine/item/enchantment/Enchantment.php
+++ b/src/pocketmine/item/enchantment/Enchantment.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item\enchantment;
 
 
diff --git a/src/pocketmine/item/enchantment/EnchantmentEntry.php b/src/pocketmine/item/enchantment/EnchantmentEntry.php
index 625cfec29..d8aa7d050 100644
--- a/src/pocketmine/item/enchantment/EnchantmentEntry.php
+++ b/src/pocketmine/item/enchantment/EnchantmentEntry.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item\enchantment;
 
 
diff --git a/src/pocketmine/item/enchantment/EnchantmentList.php b/src/pocketmine/item/enchantment/EnchantmentList.php
index 3d7bea05b..6e30af4d1 100644
--- a/src/pocketmine/item/enchantment/EnchantmentList.php
+++ b/src/pocketmine/item/enchantment/EnchantmentList.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\item\enchantment;
 
 
diff --git a/src/pocketmine/lang/BaseLang.php b/src/pocketmine/lang/BaseLang.php
index 6c64fc804..58c3f8f22 100644
--- a/src/pocketmine/lang/BaseLang.php
+++ b/src/pocketmine/lang/BaseLang.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\lang;
 
 use pocketmine\event\TextContainer;
diff --git a/src/pocketmine/level/BlockLightUpdate.php b/src/pocketmine/level/BlockLightUpdate.php
index 5f2d49aa7..b436fbb5f 100644
--- a/src/pocketmine/level/BlockLightUpdate.php
+++ b/src/pocketmine/level/BlockLightUpdate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 
diff --git a/src/pocketmine/level/ChunkLoader.php b/src/pocketmine/level/ChunkLoader.php
index e2a9e6b0d..b7604f05e 100644
--- a/src/pocketmine/level/ChunkLoader.php
+++ b/src/pocketmine/level/ChunkLoader.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/ChunkManager.php b/src/pocketmine/level/ChunkManager.php
index 72cd1483d..dc39c01da 100644
--- a/src/pocketmine/level/ChunkManager.php
+++ b/src/pocketmine/level/ChunkManager.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level;
 
diff --git a/src/pocketmine/level/Explosion.php b/src/pocketmine/level/Explosion.php
index c57a3264f..46b818163 100644
--- a/src/pocketmine/level/Explosion.php
+++ b/src/pocketmine/level/Explosion.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index 749a47ad6..44312e962 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 /**
  * All Level related classes are here, like Generators, Populators, Noise, ...
diff --git a/src/pocketmine/level/LevelException.php b/src/pocketmine/level/LevelException.php
index c76c54009..478c9ef96 100644
--- a/src/pocketmine/level/LevelException.php
+++ b/src/pocketmine/level/LevelException.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 use pocketmine\utils\ServerException;
diff --git a/src/pocketmine/level/LightUpdate.php b/src/pocketmine/level/LightUpdate.php
index 486adf3bc..f0b3dc54e 100644
--- a/src/pocketmine/level/LightUpdate.php
+++ b/src/pocketmine/level/LightUpdate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 
diff --git a/src/pocketmine/level/Location.php b/src/pocketmine/level/Location.php
index dcf282eb8..6c0ac2e39 100644
--- a/src/pocketmine/level/Location.php
+++ b/src/pocketmine/level/Location.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/MovingObjectPosition.php b/src/pocketmine/level/MovingObjectPosition.php
index f9ce21556..ab2c4810b 100644
--- a/src/pocketmine/level/MovingObjectPosition.php
+++ b/src/pocketmine/level/MovingObjectPosition.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/level/Position.php b/src/pocketmine/level/Position.php
index 615c03096..25242c905 100644
--- a/src/pocketmine/level/Position.php
+++ b/src/pocketmine/level/Position.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/SimpleChunkManager.php b/src/pocketmine/level/SimpleChunkManager.php
index 95f3a2613..712353e7f 100644
--- a/src/pocketmine/level/SimpleChunkManager.php
+++ b/src/pocketmine/level/SimpleChunkManager.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level;
 
diff --git a/src/pocketmine/level/SkyLightUpdate.php b/src/pocketmine/level/SkyLightUpdate.php
index a2bfc4dfe..3e117ef41 100644
--- a/src/pocketmine/level/SkyLightUpdate.php
+++ b/src/pocketmine/level/SkyLightUpdate.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 
diff --git a/src/pocketmine/level/WeakPosition.php b/src/pocketmine/level/WeakPosition.php
index 13b534a49..6a0a0b052 100644
--- a/src/pocketmine/level/WeakPosition.php
+++ b/src/pocketmine/level/WeakPosition.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/format/Chunk.php b/src/pocketmine/level/format/Chunk.php
index 0df4caf6b..62faf4d95 100644
--- a/src/pocketmine/level/format/Chunk.php
+++ b/src/pocketmine/level/format/Chunk.php
@@ -22,7 +22,7 @@
 /**
  * Implementation of MCPE-style chunks with subchunks with XZY ordering.
  */
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format;
 
diff --git a/src/pocketmine/level/format/EmptySubChunk.php b/src/pocketmine/level/format/EmptySubChunk.php
index d2e59679e..8111fafae 100644
--- a/src/pocketmine/level/format/EmptySubChunk.php
+++ b/src/pocketmine/level/format/EmptySubChunk.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format;
 
diff --git a/src/pocketmine/level/format/SubChunk.php b/src/pocketmine/level/format/SubChunk.php
index 4975a372d..31d2ff2dd 100644
--- a/src/pocketmine/level/format/SubChunk.php
+++ b/src/pocketmine/level/format/SubChunk.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format;
 
diff --git a/src/pocketmine/level/format/io/BaseLevelProvider.php b/src/pocketmine/level/format/io/BaseLevelProvider.php
index 979677a8e..300c84956 100644
--- a/src/pocketmine/level/format/io/BaseLevelProvider.php
+++ b/src/pocketmine/level/format/io/BaseLevelProvider.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format\io;
 
diff --git a/src/pocketmine/level/format/io/ChunkException.php b/src/pocketmine/level/format/io/ChunkException.php
index 04eb4694e..61c3c9d32 100644
--- a/src/pocketmine/level/format/io/ChunkException.php
+++ b/src/pocketmine/level/format/io/ChunkException.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\format\io;
 
 class ChunkException extends \RuntimeException{
diff --git a/src/pocketmine/level/format/io/ChunkRequestTask.php b/src/pocketmine/level/format/io/ChunkRequestTask.php
index 9e99dc4f5..7b1587770 100644
--- a/src/pocketmine/level/format/io/ChunkRequestTask.php
+++ b/src/pocketmine/level/format/io/ChunkRequestTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\format\io;
 
 use pocketmine\level\format\Chunk;
diff --git a/src/pocketmine/level/format/io/ChunkUtils.php b/src/pocketmine/level/format/io/ChunkUtils.php
index 934ab46b2..f89994ae8 100644
--- a/src/pocketmine/level/format/io/ChunkUtils.php
+++ b/src/pocketmine/level/format/io/ChunkUtils.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format\io;
 
diff --git a/src/pocketmine/level/format/io/LevelProvider.php b/src/pocketmine/level/format/io/LevelProvider.php
index 9c4aea06c..e87478f8a 100644
--- a/src/pocketmine/level/format/io/LevelProvider.php
+++ b/src/pocketmine/level/format/io/LevelProvider.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format\io;
 
diff --git a/src/pocketmine/level/format/io/LevelProviderManager.php b/src/pocketmine/level/format/io/LevelProviderManager.php
index 9427a3d11..c6eb18882 100644
--- a/src/pocketmine/level/format/io/LevelProviderManager.php
+++ b/src/pocketmine/level/format/io/LevelProviderManager.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format\io;
 
diff --git a/src/pocketmine/level/format/io/leveldb/LevelDB.php b/src/pocketmine/level/format/io/leveldb/LevelDB.php
index 67a1eebbe..b08ee7a01 100644
--- a/src/pocketmine/level/format/io/leveldb/LevelDB.php
+++ b/src/pocketmine/level/format/io/leveldb/LevelDB.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\format\io\leveldb;
 
 use pocketmine\level\format\Chunk;
@@ -229,7 +231,7 @@ class LevelDB extends BaseLevelProvider{
 	}
 
 	public function getGenerator() : string{
-		return $this->levelData["generatorName"];
+		return (string) $this->levelData["generatorName"];
 	}
 
 	public function getGeneratorOptions() : array{
diff --git a/src/pocketmine/level/format/io/region/Anvil.php b/src/pocketmine/level/format/io/region/Anvil.php
index 7bb36b24b..163712cde 100644
--- a/src/pocketmine/level/format/io/region/Anvil.php
+++ b/src/pocketmine/level/format/io/region/Anvil.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format\io\region;
 
@@ -46,8 +46,8 @@ class Anvil extends McRegion{
 		$nbt->V = new ByteTag("V", 1);
 		$nbt->LastUpdate = new LongTag("LastUpdate", 0); //TODO
 		$nbt->InhabitedTime = new LongTag("InhabitedTime", 0); //TODO
-		$nbt->TerrainPopulated = new ByteTag("TerrainPopulated", $chunk->isPopulated());
-		$nbt->LightPopulated = new ByteTag("LightPopulated", $chunk->isLightPopulated());
+		$nbt->TerrainPopulated = new ByteTag("TerrainPopulated", $chunk->isPopulated() ? 1 : 0);
+		$nbt->LightPopulated = new ByteTag("LightPopulated", $chunk->isLightPopulated() ? 1 : 0);
 
 		$nbt->Sections = new ListTag("Sections", []);
 		$nbt->Sections->setTagType(NBT::TAG_Compound);
diff --git a/src/pocketmine/level/format/io/region/CorruptedRegionException.php b/src/pocketmine/level/format/io/region/CorruptedRegionException.php
index 7749a3f5e..dc0c9e1e0 100644
--- a/src/pocketmine/level/format/io/region/CorruptedRegionException.php
+++ b/src/pocketmine/level/format/io/region/CorruptedRegionException.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\level\format\io\region;
 
diff --git a/src/pocketmine/level/format/io/region/McRegion.php b/src/pocketmine/level/format/io/region/McRegion.php
index 5aeee967e..741730845 100644
--- a/src/pocketmine/level/format/io/region/McRegion.php
+++ b/src/pocketmine/level/format/io/region/McRegion.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format\io\region;
 
@@ -58,8 +58,8 @@ class McRegion extends BaseLevelProvider{
 		$nbt->zPos = new IntTag("zPos", $chunk->getZ());
 
 		$nbt->LastUpdate = new LongTag("LastUpdate", 0); //TODO
-		$nbt->TerrainPopulated = new ByteTag("TerrainPopulated", $chunk->isPopulated());
-		$nbt->LightPopulated = new ByteTag("LightPopulated", $chunk->isLightPopulated());
+		$nbt->TerrainPopulated = new ByteTag("TerrainPopulated", $chunk->isPopulated() ? 1 : 0);
+		$nbt->LightPopulated = new ByteTag("LightPopulated", $chunk->isLightPopulated() ? 1 : 0);
 
 		$ids = "";
 		$data = "";
diff --git a/src/pocketmine/level/format/io/region/PMAnvil.php b/src/pocketmine/level/format/io/region/PMAnvil.php
index 64a62b1d3..3a165a188 100644
--- a/src/pocketmine/level/format/io/region/PMAnvil.php
+++ b/src/pocketmine/level/format/io/region/PMAnvil.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format\io\region;
 
@@ -49,8 +49,8 @@ class PMAnvil extends Anvil{
 		$nbt->V = new ByteTag("V", 1);
 		$nbt->LastUpdate = new LongTag("LastUpdate", 0); //TODO
 		$nbt->InhabitedTime = new LongTag("InhabitedTime", 0); //TODO
-		$nbt->TerrainPopulated = new ByteTag("TerrainPopulated", $chunk->isPopulated());
-		$nbt->LightPopulated = new ByteTag("LightPopulated", $chunk->isLightPopulated());
+		$nbt->TerrainPopulated = new ByteTag("TerrainPopulated", $chunk->isPopulated() ? 1 : 0);
+		$nbt->LightPopulated = new ByteTag("LightPopulated", $chunk->isLightPopulated() ? 1 : 0);
 
 		$nbt->Sections = new ListTag("Sections", []);
 		$nbt->Sections->setTagType(NBT::TAG_Compound);
diff --git a/src/pocketmine/level/format/io/region/RegionException.php b/src/pocketmine/level/format/io/region/RegionException.php
index d0238daac..f81157336 100644
--- a/src/pocketmine/level/format/io/region/RegionException.php
+++ b/src/pocketmine/level/format/io/region/RegionException.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\level\format\io\region;
 
diff --git a/src/pocketmine/level/format/io/region/RegionLoader.php b/src/pocketmine/level/format/io/region/RegionLoader.php
index c98a2a34b..05b6c7b6e 100644
--- a/src/pocketmine/level/format/io/region/RegionLoader.php
+++ b/src/pocketmine/level/format/io/region/RegionLoader.php
@@ -19,7 +19,7 @@
  *
 */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace pocketmine\level\format\io\region;
 
diff --git a/src/pocketmine/level/generator/Flat.php b/src/pocketmine/level/generator/Flat.php
index 0fd80cab2..3f40267b0 100644
--- a/src/pocketmine/level/generator/Flat.php
+++ b/src/pocketmine/level/generator/Flat.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator;
 
 use pocketmine\block\CoalOre;
diff --git a/src/pocketmine/level/generator/GenerationTask.php b/src/pocketmine/level/generator/GenerationTask.php
index 3ffe1320f..8909fadf8 100644
--- a/src/pocketmine/level/generator/GenerationTask.php
+++ b/src/pocketmine/level/generator/GenerationTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator;
 
 use pocketmine\level\format\Chunk;
diff --git a/src/pocketmine/level/generator/Generator.php b/src/pocketmine/level/generator/Generator.php
index c29c5d5cb..e59a48f80 100644
--- a/src/pocketmine/level/generator/Generator.php
+++ b/src/pocketmine/level/generator/Generator.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Noise classes used in Levels
  */
diff --git a/src/pocketmine/level/generator/GeneratorRegisterTask.php b/src/pocketmine/level/generator/GeneratorRegisterTask.php
index cc2547ec6..0e71a9d9d 100644
--- a/src/pocketmine/level/generator/GeneratorRegisterTask.php
+++ b/src/pocketmine/level/generator/GeneratorRegisterTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/GeneratorUnregisterTask.php b/src/pocketmine/level/generator/GeneratorUnregisterTask.php
index 979d4a45e..18d052290 100644
--- a/src/pocketmine/level/generator/GeneratorUnregisterTask.php
+++ b/src/pocketmine/level/generator/GeneratorUnregisterTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/level/generator/LightPopulationTask.php b/src/pocketmine/level/generator/LightPopulationTask.php
index 6515fd2ce..0072d5092 100644
--- a/src/pocketmine/level/generator/LightPopulationTask.php
+++ b/src/pocketmine/level/generator/LightPopulationTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator;
 
 use pocketmine\level\format\Chunk;
diff --git a/src/pocketmine/level/generator/PopulationTask.php b/src/pocketmine/level/generator/PopulationTask.php
index 88b61e5c0..ea0a78910 100644
--- a/src/pocketmine/level/generator/PopulationTask.php
+++ b/src/pocketmine/level/generator/PopulationTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator;
 
 use pocketmine\level\format\Chunk;
diff --git a/src/pocketmine/level/generator/biome/Biome.php b/src/pocketmine/level/generator/biome/Biome.php
index 599de0334..389993034 100644
--- a/src/pocketmine/level/generator/biome/Biome.php
+++ b/src/pocketmine/level/generator/biome/Biome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\biome;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/biome/BiomeSelector.php b/src/pocketmine/level/generator/biome/BiomeSelector.php
index 30411b111..b2777a920 100644
--- a/src/pocketmine/level/generator/biome/BiomeSelector.php
+++ b/src/pocketmine/level/generator/biome/BiomeSelector.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\biome;
 
 use pocketmine\level\generator\noise\Simplex;
diff --git a/src/pocketmine/level/generator/hell/HellBiome.php b/src/pocketmine/level/generator/hell/HellBiome.php
index 9879d1feb..0e765a862 100644
--- a/src/pocketmine/level/generator/hell/HellBiome.php
+++ b/src/pocketmine/level/generator/hell/HellBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\hell;
 
 use pocketmine\level\generator\biome\Biome;
diff --git a/src/pocketmine/level/generator/hell/Nether.php b/src/pocketmine/level/generator/hell/Nether.php
index b84d7b987..f10c9a053 100644
--- a/src/pocketmine/level/generator/hell/Nether.php
+++ b/src/pocketmine/level/generator/hell/Nether.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\hell;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/noise/Noise.php b/src/pocketmine/level/generator/noise/Noise.php
index 55ee62f95..e45d58104 100644
--- a/src/pocketmine/level/generator/noise/Noise.php
+++ b/src/pocketmine/level/generator/noise/Noise.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Different noise generators for level generation
  */
diff --git a/src/pocketmine/level/generator/noise/Perlin.php b/src/pocketmine/level/generator/noise/Perlin.php
index 9d0751eb2..91893ff6d 100644
--- a/src/pocketmine/level/generator/noise/Perlin.php
+++ b/src/pocketmine/level/generator/noise/Perlin.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\noise;
 
 use pocketmine\utils\Random;
diff --git a/src/pocketmine/level/generator/noise/Simplex.php b/src/pocketmine/level/generator/noise/Simplex.php
index 4b6f1637f..c3d82aa10 100644
--- a/src/pocketmine/level/generator/noise/Simplex.php
+++ b/src/pocketmine/level/generator/noise/Simplex.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\noise;
 
 use pocketmine\utils\Random;
diff --git a/src/pocketmine/level/generator/normal/Normal.php b/src/pocketmine/level/generator/normal/Normal.php
index 148820c12..401628d7f 100644
--- a/src/pocketmine/level/generator/normal/Normal.php
+++ b/src/pocketmine/level/generator/normal/Normal.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/normal/biome/DesertBiome.php b/src/pocketmine/level/generator/normal/biome/DesertBiome.php
index 2a4e3db54..c28295977 100644
--- a/src/pocketmine/level/generator/normal/biome/DesertBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/DesertBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 
diff --git a/src/pocketmine/level/generator/normal/biome/ForestBiome.php b/src/pocketmine/level/generator/normal/biome/ForestBiome.php
index 563935511..977729772 100644
--- a/src/pocketmine/level/generator/normal/biome/ForestBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/ForestBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\block\Sapling;
diff --git a/src/pocketmine/level/generator/normal/biome/GrassyBiome.php b/src/pocketmine/level/generator/normal/biome/GrassyBiome.php
index 6431cd8a0..72f7b8a96 100644
--- a/src/pocketmine/level/generator/normal/biome/GrassyBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/GrassyBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/normal/biome/IcePlainsBiome.php b/src/pocketmine/level/generator/normal/biome/IcePlainsBiome.php
index de7fb79a3..61be96509 100644
--- a/src/pocketmine/level/generator/normal/biome/IcePlainsBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/IcePlainsBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\level\generator\populator\TallGrass;
diff --git a/src/pocketmine/level/generator/normal/biome/MountainsBiome.php b/src/pocketmine/level/generator/normal/biome/MountainsBiome.php
index 20306015f..21ecb6db6 100644
--- a/src/pocketmine/level/generator/normal/biome/MountainsBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/MountainsBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\level\generator\populator\TallGrass;
diff --git a/src/pocketmine/level/generator/normal/biome/NormalBiome.php b/src/pocketmine/level/generator/normal/biome/NormalBiome.php
index e9d647b61..1c1c86c76 100644
--- a/src/pocketmine/level/generator/normal/biome/NormalBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/NormalBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\level\generator\biome\Biome;
diff --git a/src/pocketmine/level/generator/normal/biome/OceanBiome.php b/src/pocketmine/level/generator/normal/biome/OceanBiome.php
index 8834f84a0..1635fad13 100644
--- a/src/pocketmine/level/generator/normal/biome/OceanBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/OceanBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\level\generator\populator\TallGrass;
diff --git a/src/pocketmine/level/generator/normal/biome/PlainBiome.php b/src/pocketmine/level/generator/normal/biome/PlainBiome.php
index d9ea85ac5..16e2ab8aa 100644
--- a/src/pocketmine/level/generator/normal/biome/PlainBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/PlainBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\level\generator\populator\TallGrass;
diff --git a/src/pocketmine/level/generator/normal/biome/RiverBiome.php b/src/pocketmine/level/generator/normal/biome/RiverBiome.php
index a878657c8..8e1dfadc5 100644
--- a/src/pocketmine/level/generator/normal/biome/RiverBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/RiverBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\level\generator\populator\TallGrass;
diff --git a/src/pocketmine/level/generator/normal/biome/SandyBiome.php b/src/pocketmine/level/generator/normal/biome/SandyBiome.php
index 8951a8683..336bb2fde 100644
--- a/src/pocketmine/level/generator/normal/biome/SandyBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/SandyBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/normal/biome/SmallMountainsBiome.php b/src/pocketmine/level/generator/normal/biome/SmallMountainsBiome.php
index 98a585ac5..1ce17d13b 100644
--- a/src/pocketmine/level/generator/normal/biome/SmallMountainsBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/SmallMountainsBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 
diff --git a/src/pocketmine/level/generator/normal/biome/SnowyBiome.php b/src/pocketmine/level/generator/normal/biome/SnowyBiome.php
index 067c031a6..48b446812 100644
--- a/src/pocketmine/level/generator/normal/biome/SnowyBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/SnowyBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/normal/biome/SwampBiome.php b/src/pocketmine/level/generator/normal/biome/SwampBiome.php
index 794e1c648..174fc1840 100644
--- a/src/pocketmine/level/generator/normal/biome/SwampBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/SwampBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 class SwampBiome extends GrassyBiome{
diff --git a/src/pocketmine/level/generator/normal/biome/TaigaBiome.php b/src/pocketmine/level/generator/normal/biome/TaigaBiome.php
index 1f2bad725..7825e2cc0 100644
--- a/src/pocketmine/level/generator/normal/biome/TaigaBiome.php
+++ b/src/pocketmine/level/generator/normal/biome/TaigaBiome.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\normal\biome;
 
 use pocketmine\block\Sapling;
diff --git a/src/pocketmine/level/generator/object/BigTree.php b/src/pocketmine/level/generator/object/BigTree.php
index d46742a40..cbb700d7b 100644
--- a/src/pocketmine/level/generator/object/BigTree.php
+++ b/src/pocketmine/level/generator/object/BigTree.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\level\ChunkManager;
diff --git a/src/pocketmine/level/generator/object/BirchTree.php b/src/pocketmine/level/generator/object/BirchTree.php
index 65f846339..a5488c1d5 100644
--- a/src/pocketmine/level/generator/object/BirchTree.php
+++ b/src/pocketmine/level/generator/object/BirchTree.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/object/JungleTree.php b/src/pocketmine/level/generator/object/JungleTree.php
index d63a6cee1..f1fd26804 100644
--- a/src/pocketmine/level/generator/object/JungleTree.php
+++ b/src/pocketmine/level/generator/object/JungleTree.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/object/OakTree.php b/src/pocketmine/level/generator/object/OakTree.php
index 661e6ad13..d3ff93e91 100644
--- a/src/pocketmine/level/generator/object/OakTree.php
+++ b/src/pocketmine/level/generator/object/OakTree.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/object/Object.php b/src/pocketmine/level/generator/object/Object.php
index ac1fa9707..0abf2a355 100644
--- a/src/pocketmine/level/generator/object/Object.php
+++ b/src/pocketmine/level/generator/object/Object.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * All the different object classes used in populators
  */
diff --git a/src/pocketmine/level/generator/object/Ore.php b/src/pocketmine/level/generator/object/Ore.php
index eebf1771a..5633c6dfc 100644
--- a/src/pocketmine/level/generator/object/Ore.php
+++ b/src/pocketmine/level/generator/object/Ore.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\level\ChunkManager;
diff --git a/src/pocketmine/level/generator/object/OreType.php b/src/pocketmine/level/generator/object/OreType.php
index 7ca68b1c0..8c4794fea 100644
--- a/src/pocketmine/level/generator/object/OreType.php
+++ b/src/pocketmine/level/generator/object/OreType.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/object/Pond.php b/src/pocketmine/level/generator/object/Pond.php
index 4fcd2416b..6fbb713cf 100644
--- a/src/pocketmine/level/generator/object/Pond.php
+++ b/src/pocketmine/level/generator/object/Pond.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/object/SpruceTree.php b/src/pocketmine/level/generator/object/SpruceTree.php
index 58d3fc689..d7b273048 100644
--- a/src/pocketmine/level/generator/object/SpruceTree.php
+++ b/src/pocketmine/level/generator/object/SpruceTree.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/object/TallGrass.php b/src/pocketmine/level/generator/object/TallGrass.php
index 572162c5c..49e9e7d72 100644
--- a/src/pocketmine/level/generator/object/TallGrass.php
+++ b/src/pocketmine/level/generator/object/TallGrass.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/object/Tree.php b/src/pocketmine/level/generator/object/Tree.php
index 79a7b2a64..c1a04307a 100644
--- a/src/pocketmine/level/generator/object/Tree.php
+++ b/src/pocketmine/level/generator/object/Tree.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\object;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/populator/GroundCover.php b/src/pocketmine/level/generator/populator/GroundCover.php
index ec6c4ae92..7c0967dae 100644
--- a/src/pocketmine/level/generator/populator/GroundCover.php
+++ b/src/pocketmine/level/generator/populator/GroundCover.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\populator;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/populator/Mineshaft.php b/src/pocketmine/level/generator/populator/Mineshaft.php
index a6c581d72..eeee874a1 100644
--- a/src/pocketmine/level/generator/populator/Mineshaft.php
+++ b/src/pocketmine/level/generator/populator/Mineshaft.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\populator;
 
 use pocketmine\level\ChunkManager;
diff --git a/src/pocketmine/level/generator/populator/Ore.php b/src/pocketmine/level/generator/populator/Ore.php
index 42796b7c7..0af14c8cf 100644
--- a/src/pocketmine/level/generator/populator/Ore.php
+++ b/src/pocketmine/level/generator/populator/Ore.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\populator;
 
 use pocketmine\level\ChunkManager;
diff --git a/src/pocketmine/level/generator/populator/Pond.php b/src/pocketmine/level/generator/populator/Pond.php
index 45909c0b9..a949a029e 100644
--- a/src/pocketmine/level/generator/populator/Pond.php
+++ b/src/pocketmine/level/generator/populator/Pond.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\populator;
 
 use pocketmine\block\Water;
diff --git a/src/pocketmine/level/generator/populator/Populator.php b/src/pocketmine/level/generator/populator/Populator.php
index e089a0098..42dddbe96 100644
--- a/src/pocketmine/level/generator/populator/Populator.php
+++ b/src/pocketmine/level/generator/populator/Populator.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * All the Object populator classes
  */
diff --git a/src/pocketmine/level/generator/populator/TallGrass.php b/src/pocketmine/level/generator/populator/TallGrass.php
index ca795ad7f..499fc6a40 100644
--- a/src/pocketmine/level/generator/populator/TallGrass.php
+++ b/src/pocketmine/level/generator/populator/TallGrass.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\populator;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/generator/populator/Tree.php b/src/pocketmine/level/generator/populator/Tree.php
index 8205dc1e7..e653384c2 100644
--- a/src/pocketmine/level/generator/populator/Tree.php
+++ b/src/pocketmine/level/generator/populator/Tree.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\generator\populator;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/particle/AngryVillagerParticle.php b/src/pocketmine/level/particle/AngryVillagerParticle.php
index e33a28c4d..52c8e6762 100644
--- a/src/pocketmine/level/particle/AngryVillagerParticle.php
+++ b/src/pocketmine/level/particle/AngryVillagerParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/BlockForceFieldParticle.php b/src/pocketmine/level/particle/BlockForceFieldParticle.php
index 7182b7519..4ad56cb77 100644
--- a/src/pocketmine/level/particle/BlockForceFieldParticle.php
+++ b/src/pocketmine/level/particle/BlockForceFieldParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/BubbleParticle.php b/src/pocketmine/level/particle/BubbleParticle.php
index 8262e7d9b..edc50afda 100644
--- a/src/pocketmine/level/particle/BubbleParticle.php
+++ b/src/pocketmine/level/particle/BubbleParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/CriticalParticle.php b/src/pocketmine/level/particle/CriticalParticle.php
index 9b6640687..895b500ab 100644
--- a/src/pocketmine/level/particle/CriticalParticle.php
+++ b/src/pocketmine/level/particle/CriticalParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/DestroyBlockParticle.php b/src/pocketmine/level/particle/DestroyBlockParticle.php
index 869e02d84..8e1e1ca2a 100644
--- a/src/pocketmine/level/particle/DestroyBlockParticle.php
+++ b/src/pocketmine/level/particle/DestroyBlockParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/particle/DustParticle.php b/src/pocketmine/level/particle/DustParticle.php
index 0f0ad4e3b..5144f02c2 100644
--- a/src/pocketmine/level/particle/DustParticle.php
+++ b/src/pocketmine/level/particle/DustParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/EnchantParticle.php b/src/pocketmine/level/particle/EnchantParticle.php
index 643f071bc..ca2e599ce 100644
--- a/src/pocketmine/level/particle/EnchantParticle.php
+++ b/src/pocketmine/level/particle/EnchantParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/EnchantmentTableParticle.php b/src/pocketmine/level/particle/EnchantmentTableParticle.php
index 06910db87..00cd11dc2 100644
--- a/src/pocketmine/level/particle/EnchantmentTableParticle.php
+++ b/src/pocketmine/level/particle/EnchantmentTableParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/EntityFlameParticle.php b/src/pocketmine/level/particle/EntityFlameParticle.php
index c2ba5835f..41e688f38 100644
--- a/src/pocketmine/level/particle/EntityFlameParticle.php
+++ b/src/pocketmine/level/particle/EntityFlameParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/ExplodeParticle.php b/src/pocketmine/level/particle/ExplodeParticle.php
index f8f122842..c4c8ce002 100644
--- a/src/pocketmine/level/particle/ExplodeParticle.php
+++ b/src/pocketmine/level/particle/ExplodeParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/FlameParticle.php b/src/pocketmine/level/particle/FlameParticle.php
index 0daf31d00..89f61c39a 100644
--- a/src/pocketmine/level/particle/FlameParticle.php
+++ b/src/pocketmine/level/particle/FlameParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/FloatingTextParticle.php b/src/pocketmine/level/particle/FloatingTextParticle.php
index 6a2105262..bbd5f940d 100644
--- a/src/pocketmine/level/particle/FloatingTextParticle.php
+++ b/src/pocketmine/level/particle/FloatingTextParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\entity\Entity;
@@ -66,7 +68,7 @@ class FloatingTextParticle extends Particle{
 		$p = [];
 
 		if($this->entityId === null){
-			$this->entityId = (int) bcadd("1095216660480", mt_rand(0, 0x7fffffff)); //No conflict with other things
+			$this->entityId = Entity::$entityCount++;
 		}else{
 			$pk0 = new RemoveEntityPacket();
 			$pk0->entityUniqueId = $this->entityId;
diff --git a/src/pocketmine/level/particle/GenericParticle.php b/src/pocketmine/level/particle/GenericParticle.php
index 698d42bb1..a893aed53 100644
--- a/src/pocketmine/level/particle/GenericParticle.php
+++ b/src/pocketmine/level/particle/GenericParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/HappyVillagerParticle.php b/src/pocketmine/level/particle/HappyVillagerParticle.php
index 14ef5234e..d4afcda09 100644
--- a/src/pocketmine/level/particle/HappyVillagerParticle.php
+++ b/src/pocketmine/level/particle/HappyVillagerParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/HeartParticle.php b/src/pocketmine/level/particle/HeartParticle.php
index 8696ba5e7..f7dfb80a3 100644
--- a/src/pocketmine/level/particle/HeartParticle.php
+++ b/src/pocketmine/level/particle/HeartParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/HugeExplodeParticle.php b/src/pocketmine/level/particle/HugeExplodeParticle.php
index e27895002..bab01f517 100644
--- a/src/pocketmine/level/particle/HugeExplodeParticle.php
+++ b/src/pocketmine/level/particle/HugeExplodeParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/HugeExplodeSeedParticle.php b/src/pocketmine/level/particle/HugeExplodeSeedParticle.php
index fbff4f8cf..32edf6eea 100644
--- a/src/pocketmine/level/particle/HugeExplodeSeedParticle.php
+++ b/src/pocketmine/level/particle/HugeExplodeSeedParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/InkParticle.php b/src/pocketmine/level/particle/InkParticle.php
index 71a05a746..c794af312 100644
--- a/src/pocketmine/level/particle/InkParticle.php
+++ b/src/pocketmine/level/particle/InkParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/InstantEnchantParticle.php b/src/pocketmine/level/particle/InstantEnchantParticle.php
index 0a6099d7e..337a89ff3 100644
--- a/src/pocketmine/level/particle/InstantEnchantParticle.php
+++ b/src/pocketmine/level/particle/InstantEnchantParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/ItemBreakParticle.php b/src/pocketmine/level/particle/ItemBreakParticle.php
index 179588618..8a5e655a0 100644
--- a/src/pocketmine/level/particle/ItemBreakParticle.php
+++ b/src/pocketmine/level/particle/ItemBreakParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/level/particle/LavaDripParticle.php b/src/pocketmine/level/particle/LavaDripParticle.php
index 657d86bce..9d71da477 100644
--- a/src/pocketmine/level/particle/LavaDripParticle.php
+++ b/src/pocketmine/level/particle/LavaDripParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/LavaParticle.php b/src/pocketmine/level/particle/LavaParticle.php
index 8809c02ab..4d088d31d 100644
--- a/src/pocketmine/level/particle/LavaParticle.php
+++ b/src/pocketmine/level/particle/LavaParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/MobSpawnParticle.php b/src/pocketmine/level/particle/MobSpawnParticle.php
index 98527129a..9745d5f04 100644
--- a/src/pocketmine/level/particle/MobSpawnParticle.php
+++ b/src/pocketmine/level/particle/MobSpawnParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/Particle.php b/src/pocketmine/level/particle/Particle.php
index b95817990..8d05baa49 100644
--- a/src/pocketmine/level/particle/Particle.php
+++ b/src/pocketmine/level/particle/Particle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/PortalParticle.php b/src/pocketmine/level/particle/PortalParticle.php
index 216307ddf..66edf03c4 100644
--- a/src/pocketmine/level/particle/PortalParticle.php
+++ b/src/pocketmine/level/particle/PortalParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/RainSplashParticle.php b/src/pocketmine/level/particle/RainSplashParticle.php
index 26a9fefcb..159ba73c5 100644
--- a/src/pocketmine/level/particle/RainSplashParticle.php
+++ b/src/pocketmine/level/particle/RainSplashParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/RedstoneParticle.php b/src/pocketmine/level/particle/RedstoneParticle.php
index ca343b8b2..8db6157d8 100644
--- a/src/pocketmine/level/particle/RedstoneParticle.php
+++ b/src/pocketmine/level/particle/RedstoneParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/SmokeParticle.php b/src/pocketmine/level/particle/SmokeParticle.php
index b58cc56b5..99ae52187 100644
--- a/src/pocketmine/level/particle/SmokeParticle.php
+++ b/src/pocketmine/level/particle/SmokeParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/SplashParticle.php b/src/pocketmine/level/particle/SplashParticle.php
index 84c1928ad..8c0eea703 100644
--- a/src/pocketmine/level/particle/SplashParticle.php
+++ b/src/pocketmine/level/particle/SplashParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/SporeParticle.php b/src/pocketmine/level/particle/SporeParticle.php
index a2156d631..31328aa2a 100644
--- a/src/pocketmine/level/particle/SporeParticle.php
+++ b/src/pocketmine/level/particle/SporeParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/TerrainParticle.php b/src/pocketmine/level/particle/TerrainParticle.php
index 7230bb7f7..c1c6e324a 100644
--- a/src/pocketmine/level/particle/TerrainParticle.php
+++ b/src/pocketmine/level/particle/TerrainParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/level/particle/WaterDripParticle.php b/src/pocketmine/level/particle/WaterDripParticle.php
index ad99c10d2..171937598 100644
--- a/src/pocketmine/level/particle/WaterDripParticle.php
+++ b/src/pocketmine/level/particle/WaterDripParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/particle/WaterParticle.php b/src/pocketmine/level/particle/WaterParticle.php
index cfd1dee87..8b1feb1d6 100644
--- a/src/pocketmine/level/particle/WaterParticle.php
+++ b/src/pocketmine/level/particle/WaterParticle.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\particle;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/AnvilBreakSound.php b/src/pocketmine/level/sound/AnvilBreakSound.php
index 246c44c52..877a4f4a3 100644
--- a/src/pocketmine/level/sound/AnvilBreakSound.php
+++ b/src/pocketmine/level/sound/AnvilBreakSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/AnvilFallSound.php b/src/pocketmine/level/sound/AnvilFallSound.php
index f84b50e8d..641722443 100644
--- a/src/pocketmine/level/sound/AnvilFallSound.php
+++ b/src/pocketmine/level/sound/AnvilFallSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/AnvilUseSound.php b/src/pocketmine/level/sound/AnvilUseSound.php
index 024ad017b..e3f501563 100644
--- a/src/pocketmine/level/sound/AnvilUseSound.php
+++ b/src/pocketmine/level/sound/AnvilUseSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/BlazeShootSound.php b/src/pocketmine/level/sound/BlazeShootSound.php
index 68d15dd93..1e5f47875 100644
--- a/src/pocketmine/level/sound/BlazeShootSound.php
+++ b/src/pocketmine/level/sound/BlazeShootSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/ClickSound.php b/src/pocketmine/level/sound/ClickSound.php
index 3261fe9b0..e103b0e91 100644
--- a/src/pocketmine/level/sound/ClickSound.php
+++ b/src/pocketmine/level/sound/ClickSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/DoorBumpSound.php b/src/pocketmine/level/sound/DoorBumpSound.php
index 0278ad4d5..cd865ecea 100644
--- a/src/pocketmine/level/sound/DoorBumpSound.php
+++ b/src/pocketmine/level/sound/DoorBumpSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/DoorCrashSound.php b/src/pocketmine/level/sound/DoorCrashSound.php
index 2fc713f46..98a626059 100644
--- a/src/pocketmine/level/sound/DoorCrashSound.php
+++ b/src/pocketmine/level/sound/DoorCrashSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/DoorSound.php b/src/pocketmine/level/sound/DoorSound.php
index 486d371e2..c7b0919c8 100644
--- a/src/pocketmine/level/sound/DoorSound.php
+++ b/src/pocketmine/level/sound/DoorSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/EndermanTeleportSound.php b/src/pocketmine/level/sound/EndermanTeleportSound.php
index 98f1b2e94..587a520e8 100644
--- a/src/pocketmine/level/sound/EndermanTeleportSound.php
+++ b/src/pocketmine/level/sound/EndermanTeleportSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/FizzSound.php b/src/pocketmine/level/sound/FizzSound.php
index 32fd9a004..708b3f533 100644
--- a/src/pocketmine/level/sound/FizzSound.php
+++ b/src/pocketmine/level/sound/FizzSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/GenericSound.php b/src/pocketmine/level/sound/GenericSound.php
index f3e399cf1..945cd7b2e 100644
--- a/src/pocketmine/level/sound/GenericSound.php
+++ b/src/pocketmine/level/sound/GenericSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/GhastShootSound.php b/src/pocketmine/level/sound/GhastShootSound.php
index d7dd0581f..0e4566e15 100644
--- a/src/pocketmine/level/sound/GhastShootSound.php
+++ b/src/pocketmine/level/sound/GhastShootSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/GhastSound.php b/src/pocketmine/level/sound/GhastSound.php
index 0178c5302..1a18cec09 100644
--- a/src/pocketmine/level/sound/GhastSound.php
+++ b/src/pocketmine/level/sound/GhastSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/LaunchSound.php b/src/pocketmine/level/sound/LaunchSound.php
index 3245c2da4..a5a2170c5 100644
--- a/src/pocketmine/level/sound/LaunchSound.php
+++ b/src/pocketmine/level/sound/LaunchSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/PopSound.php b/src/pocketmine/level/sound/PopSound.php
index b291e56fd..ee514c111 100644
--- a/src/pocketmine/level/sound/PopSound.php
+++ b/src/pocketmine/level/sound/PopSound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/level/sound/Sound.php b/src/pocketmine/level/sound/Sound.php
index 2e84ad113..641739e89 100644
--- a/src/pocketmine/level/sound/Sound.php
+++ b/src/pocketmine/level/sound/Sound.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\level\sound;
 
 use pocketmine\math\Vector3;
diff --git a/src/pocketmine/math/AxisAlignedBB.php b/src/pocketmine/math/AxisAlignedBB.php
index 7d898af14..2d381d812 100644
--- a/src/pocketmine/math/AxisAlignedBB.php
+++ b/src/pocketmine/math/AxisAlignedBB.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\math;
 
 use pocketmine\level\MovingObjectPosition;
diff --git a/src/pocketmine/math/Math.php b/src/pocketmine/math/Math.php
index 8d10e2b24..756b558cf 100644
--- a/src/pocketmine/math/Math.php
+++ b/src/pocketmine/math/Math.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Math related classes, like matrices, bounding boxes and vector
  */
diff --git a/src/pocketmine/math/Matrix.php b/src/pocketmine/math/Matrix.php
index fa48de85c..a936347e8 100644
--- a/src/pocketmine/math/Matrix.php
+++ b/src/pocketmine/math/Matrix.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\math;
 
 
diff --git a/src/pocketmine/math/Vector2.php b/src/pocketmine/math/Vector2.php
index c86d39856..532871974 100644
--- a/src/pocketmine/math/Vector2.php
+++ b/src/pocketmine/math/Vector2.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\math;
 
 class Vector2{
diff --git a/src/pocketmine/math/Vector3.php b/src/pocketmine/math/Vector3.php
index 61e78ca11..e572d2166 100644
--- a/src/pocketmine/math/Vector3.php
+++ b/src/pocketmine/math/Vector3.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\math;
 
 class Vector3{
diff --git a/src/pocketmine/math/VectorMath.php b/src/pocketmine/math/VectorMath.php
index 9c7059630..e1ef0e44a 100644
--- a/src/pocketmine/math/VectorMath.php
+++ b/src/pocketmine/math/VectorMath.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\math;
 
 
diff --git a/src/pocketmine/metadata/BlockMetadataStore.php b/src/pocketmine/metadata/BlockMetadataStore.php
index 5ae963d72..e9b2db866 100644
--- a/src/pocketmine/metadata/BlockMetadataStore.php
+++ b/src/pocketmine/metadata/BlockMetadataStore.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\metadata;
 
 use pocketmine\Block\Block;
diff --git a/src/pocketmine/metadata/EntityMetadataStore.php b/src/pocketmine/metadata/EntityMetadataStore.php
index b2169ff18..9eba82c51 100644
--- a/src/pocketmine/metadata/EntityMetadataStore.php
+++ b/src/pocketmine/metadata/EntityMetadataStore.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\metadata;
 
 use pocketmine\entity\Entity;
diff --git a/src/pocketmine/metadata/LevelMetadataStore.php b/src/pocketmine/metadata/LevelMetadataStore.php
index b04c07c53..c74a6eee2 100644
--- a/src/pocketmine/metadata/LevelMetadataStore.php
+++ b/src/pocketmine/metadata/LevelMetadataStore.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\metadata;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/metadata/MetadataStore.php b/src/pocketmine/metadata/MetadataStore.php
index 9cb66dacd..63c15ae61 100644
--- a/src/pocketmine/metadata/MetadataStore.php
+++ b/src/pocketmine/metadata/MetadataStore.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Saves extra data on runtime for different items
  */
diff --git a/src/pocketmine/metadata/MetadataValue.php b/src/pocketmine/metadata/MetadataValue.php
index 4834003fc..b91a326fc 100644
--- a/src/pocketmine/metadata/MetadataValue.php
+++ b/src/pocketmine/metadata/MetadataValue.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\metadata;
 
 use pocketmine\plugin\Plugin;
diff --git a/src/pocketmine/metadata/Metadatable.php b/src/pocketmine/metadata/Metadatable.php
index 3a185031b..b3e1c6c41 100644
--- a/src/pocketmine/metadata/Metadatable.php
+++ b/src/pocketmine/metadata/Metadatable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\metadata;
 
 use pocketmine\plugin\Plugin;
diff --git a/src/pocketmine/metadata/PlayerMetadataStore.php b/src/pocketmine/metadata/PlayerMetadataStore.php
index 5194c6a68..362e2ca29 100644
--- a/src/pocketmine/metadata/PlayerMetadataStore.php
+++ b/src/pocketmine/metadata/PlayerMetadataStore.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\metadata;
 
 use pocketmine\IPlayer;
diff --git a/src/pocketmine/nbt/JsonNBTParser.php b/src/pocketmine/nbt/JsonNBTParser.php
index f8c8d6a2b..f735a2e28 100644
--- a/src/pocketmine/nbt/JsonNBTParser.php
+++ b/src/pocketmine/nbt/JsonNBTParser.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt;
 
 
diff --git a/src/pocketmine/nbt/NBT.php b/src/pocketmine/nbt/NBT.php
index 384e3216c..31f87215f 100644
--- a/src/pocketmine/nbt/NBT.php
+++ b/src/pocketmine/nbt/NBT.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Named Binary Tag handling classes
  */
diff --git a/src/pocketmine/nbt/tag/ByteArrayTag.php b/src/pocketmine/nbt/tag/ByteArrayTag.php
index b53862f97..00bc696c0 100644
--- a/src/pocketmine/nbt/tag/ByteArrayTag.php
+++ b/src/pocketmine/nbt/tag/ByteArrayTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/ByteTag.php b/src/pocketmine/nbt/tag/ByteTag.php
index 4f34b1fff..3aa13b512 100644
--- a/src/pocketmine/nbt/tag/ByteTag.php
+++ b/src/pocketmine/nbt/tag/ByteTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/CompoundTag.php b/src/pocketmine/nbt/tag/CompoundTag.php
index 0448f0580..623b00e0a 100644
--- a/src/pocketmine/nbt/tag/CompoundTag.php
+++ b/src/pocketmine/nbt/tag/CompoundTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/DoubleTag.php b/src/pocketmine/nbt/tag/DoubleTag.php
index 37d57e792..f0eb71f63 100644
--- a/src/pocketmine/nbt/tag/DoubleTag.php
+++ b/src/pocketmine/nbt/tag/DoubleTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/EndTag.php b/src/pocketmine/nbt/tag/EndTag.php
index 83f2df643..19ea1e558 100644
--- a/src/pocketmine/nbt/tag/EndTag.php
+++ b/src/pocketmine/nbt/tag/EndTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/FloatTag.php b/src/pocketmine/nbt/tag/FloatTag.php
index 56a24915b..2201aa427 100644
--- a/src/pocketmine/nbt/tag/FloatTag.php
+++ b/src/pocketmine/nbt/tag/FloatTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/IntArrayTag.php b/src/pocketmine/nbt/tag/IntArrayTag.php
index ac185e7f3..1a507e777 100644
--- a/src/pocketmine/nbt/tag/IntArrayTag.php
+++ b/src/pocketmine/nbt/tag/IntArrayTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/IntTag.php b/src/pocketmine/nbt/tag/IntTag.php
index 2a4e5d49f..77580f9c0 100644
--- a/src/pocketmine/nbt/tag/IntTag.php
+++ b/src/pocketmine/nbt/tag/IntTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/ListTag.php b/src/pocketmine/nbt/tag/ListTag.php
index c7945ff94..23197dbd1 100644
--- a/src/pocketmine/nbt/tag/ListTag.php
+++ b/src/pocketmine/nbt/tag/ListTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/LongTag.php b/src/pocketmine/nbt/tag/LongTag.php
index e6bbc75d4..d5b907289 100644
--- a/src/pocketmine/nbt/tag/LongTag.php
+++ b/src/pocketmine/nbt/tag/LongTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/NamedTag.php b/src/pocketmine/nbt/tag/NamedTag.php
index 1fbad881c..b7d29774c 100644
--- a/src/pocketmine/nbt/tag/NamedTag.php
+++ b/src/pocketmine/nbt/tag/NamedTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 
diff --git a/src/pocketmine/nbt/tag/ShortTag.php b/src/pocketmine/nbt/tag/ShortTag.php
index 9b5bb1039..707907de2 100644
--- a/src/pocketmine/nbt/tag/ShortTag.php
+++ b/src/pocketmine/nbt/tag/ShortTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/StringTag.php b/src/pocketmine/nbt/tag/StringTag.php
index 72e014620..d44b440e8 100644
--- a/src/pocketmine/nbt/tag/StringTag.php
+++ b/src/pocketmine/nbt/tag/StringTag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\nbt\tag;
 
 use pocketmine\nbt\NBT;
diff --git a/src/pocketmine/nbt/tag/Tag.php b/src/pocketmine/nbt/tag/Tag.php
index fa2d395c5..849b43ffc 100644
--- a/src/pocketmine/nbt/tag/Tag.php
+++ b/src/pocketmine/nbt/tag/Tag.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * All the NBT Tags
  */
diff --git a/src/pocketmine/network/AdvancedSourceInterface.php b/src/pocketmine/network/AdvancedSourceInterface.php
index 7e49b54cd..56184b3b7 100644
--- a/src/pocketmine/network/AdvancedSourceInterface.php
+++ b/src/pocketmine/network/AdvancedSourceInterface.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Network-related classes
  */
diff --git a/src/pocketmine/network/CompressBatchedTask.php b/src/pocketmine/network/CompressBatchedTask.php
index 8b660fdcd..afecfa2bd 100644
--- a/src/pocketmine/network/CompressBatchedTask.php
+++ b/src/pocketmine/network/CompressBatchedTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network;
 
 use pocketmine\network\mcpe\protocol\BatchPacket;
diff --git a/src/pocketmine/network/Network.php b/src/pocketmine/network/Network.php
index 103c266ea..7be7710bf 100644
--- a/src/pocketmine/network/Network.php
+++ b/src/pocketmine/network/Network.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Network-related classes
  */
diff --git a/src/pocketmine/network/SourceInterface.php b/src/pocketmine/network/SourceInterface.php
index 492c5b60c..bd7f41ef7 100644
--- a/src/pocketmine/network/SourceInterface.php
+++ b/src/pocketmine/network/SourceInterface.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Network-related classes
  */
diff --git a/src/pocketmine/network/mcpe/CachedEncapsulatedPacket.php b/src/pocketmine/network/mcpe/CachedEncapsulatedPacket.php
index 57545d57c..9ebe122ee 100644
--- a/src/pocketmine/network/mcpe/CachedEncapsulatedPacket.php
+++ b/src/pocketmine/network/mcpe/CachedEncapsulatedPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe;
 
 use raklib\protocol\EncapsulatedPacket;
diff --git a/src/pocketmine/network/mcpe/NetworkSession.php b/src/pocketmine/network/mcpe/NetworkSession.php
index a44a16804..9f4fb992b 100644
--- a/src/pocketmine/network/mcpe/NetworkSession.php
+++ b/src/pocketmine/network/mcpe/NetworkSession.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe;
 
diff --git a/src/pocketmine/network/mcpe/RakLibInterface.php b/src/pocketmine/network/mcpe/RakLibInterface.php
index 6c974ba18..9a1a8e817 100644
--- a/src/pocketmine/network/mcpe/RakLibInterface.php
+++ b/src/pocketmine/network/mcpe/RakLibInterface.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe;
 
 use pocketmine\event\player\PlayerCreationEvent;
diff --git a/src/pocketmine/network/mcpe/protocol/AddEntityPacket.php b/src/pocketmine/network/mcpe/protocol/AddEntityPacket.php
index b3f264b48..26e31dc35 100644
--- a/src/pocketmine/network/mcpe/protocol/AddEntityPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AddEntityPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/AddHangingEntityPacket.php b/src/pocketmine/network/mcpe/protocol/AddHangingEntityPacket.php
index 73cf5178c..fb36ffd6a 100644
--- a/src/pocketmine/network/mcpe/protocol/AddHangingEntityPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AddHangingEntityPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/AddItemEntityPacket.php b/src/pocketmine/network/mcpe/protocol/AddItemEntityPacket.php
index f6cb27f97..cd4246e3a 100644
--- a/src/pocketmine/network/mcpe/protocol/AddItemEntityPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AddItemEntityPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/AddItemPacket.php b/src/pocketmine/network/mcpe/protocol/AddItemPacket.php
index b79e2fd0c..d0b59dd85 100644
--- a/src/pocketmine/network/mcpe/protocol/AddItemPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AddItemPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/AddPaintingPacket.php b/src/pocketmine/network/mcpe/protocol/AddPaintingPacket.php
index e4f34d19e..47cf9e793 100644
--- a/src/pocketmine/network/mcpe/protocol/AddPaintingPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AddPaintingPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/AddPlayerPacket.php b/src/pocketmine/network/mcpe/protocol/AddPlayerPacket.php
index bb6d8756d..17fcd7221 100644
--- a/src/pocketmine/network/mcpe/protocol/AddPlayerPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AddPlayerPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/AdventureSettingsPacket.php b/src/pocketmine/network/mcpe/protocol/AdventureSettingsPacket.php
index fa5372638..b660c22dc 100644
--- a/src/pocketmine/network/mcpe/protocol/AdventureSettingsPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AdventureSettingsPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/AnimatePacket.php b/src/pocketmine/network/mcpe/protocol/AnimatePacket.php
index 033c500b5..b0427276a 100644
--- a/src/pocketmine/network/mcpe/protocol/AnimatePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AnimatePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/AvailableCommandsPacket.php b/src/pocketmine/network/mcpe/protocol/AvailableCommandsPacket.php
index f823611f2..5cbadd2f7 100644
--- a/src/pocketmine/network/mcpe/protocol/AvailableCommandsPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AvailableCommandsPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/BatchPacket.php b/src/pocketmine/network/mcpe/protocol/BatchPacket.php
index fcf5aa573..8d510b8e6 100644
--- a/src/pocketmine/network/mcpe/protocol/BatchPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/BatchPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
@@ -44,7 +46,7 @@ class BatchPacket extends DataPacket{
 	}
 
 	public function decode(){
-		$this->payload = $this->get(true);
+		$this->payload = $this->get(0);
 	}
 
 	public function encode(){
diff --git a/src/pocketmine/network/mcpe/protocol/BlockEntityDataPacket.php b/src/pocketmine/network/mcpe/protocol/BlockEntityDataPacket.php
index cc1fbc52d..29f2a2d26 100644
--- a/src/pocketmine/network/mcpe/protocol/BlockEntityDataPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/BlockEntityDataPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
@@ -36,7 +38,7 @@ class BlockEntityDataPacket extends DataPacket{
 
 	public function decode(){
 		$this->getBlockPosition($this->x, $this->y, $this->z);
-		$this->namedtag = $this->get(true);
+		$this->namedtag = $this->get(0);
 	}
 
 	public function encode(){
diff --git a/src/pocketmine/network/mcpe/protocol/BlockEventPacket.php b/src/pocketmine/network/mcpe/protocol/BlockEventPacket.php
index f2c78bc4d..bf83d3b3a 100644
--- a/src/pocketmine/network/mcpe/protocol/BlockEventPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/BlockEventPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/BlockPickRequestPacket.php b/src/pocketmine/network/mcpe/protocol/BlockPickRequestPacket.php
index 89ff5180f..96e4f31c7 100644
--- a/src/pocketmine/network/mcpe/protocol/BlockPickRequestPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/BlockPickRequestPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/BossEventPacket.php b/src/pocketmine/network/mcpe/protocol/BossEventPacket.php
index 0faf87286..276dc06a5 100644
--- a/src/pocketmine/network/mcpe/protocol/BossEventPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/BossEventPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ChangeDimensionPacket.php b/src/pocketmine/network/mcpe/protocol/ChangeDimensionPacket.php
index d80b4fff1..11f8bd0ab 100644
--- a/src/pocketmine/network/mcpe/protocol/ChangeDimensionPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ChangeDimensionPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ChunkRadiusUpdatedPacket.php b/src/pocketmine/network/mcpe/protocol/ChunkRadiusUpdatedPacket.php
index 5d30c282f..f68dae1d4 100644
--- a/src/pocketmine/network/mcpe/protocol/ChunkRadiusUpdatedPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ChunkRadiusUpdatedPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ClientToServerHandshakePacket.php b/src/pocketmine/network/mcpe/protocol/ClientToServerHandshakePacket.php
index ef1aa7c33..94fd8aa24 100644
--- a/src/pocketmine/network/mcpe/protocol/ClientToServerHandshakePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ClientToServerHandshakePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ClientboundMapItemDataPacket.php b/src/pocketmine/network/mcpe/protocol/ClientboundMapItemDataPacket.php
index 316abb376..174a7fc8c 100644
--- a/src/pocketmine/network/mcpe/protocol/ClientboundMapItemDataPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ClientboundMapItemDataPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/CommandBlockUpdatePacket.php b/src/pocketmine/network/mcpe/protocol/CommandBlockUpdatePacket.php
index cba3f9ad0..124b4a503 100644
--- a/src/pocketmine/network/mcpe/protocol/CommandBlockUpdatePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/CommandBlockUpdatePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/CommandStepPacket.php b/src/pocketmine/network/mcpe/protocol/CommandStepPacket.php
index 45549d21e..ca701c429 100644
--- a/src/pocketmine/network/mcpe/protocol/CommandStepPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/CommandStepPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
@@ -47,7 +49,7 @@ class CommandStepPacket extends DataPacket{
 		$this->inputJson = json_decode($this->getString());
 		$this->outputJson = json_decode($this->getString());
 
-		$this->get(true); //TODO: read command origin data
+		$this->get(0); //TODO: read command origin data
 	}
 
 	public function encode(){
diff --git a/src/pocketmine/network/mcpe/protocol/ContainerClosePacket.php b/src/pocketmine/network/mcpe/protocol/ContainerClosePacket.php
index c566152fd..e0eac4c72 100644
--- a/src/pocketmine/network/mcpe/protocol/ContainerClosePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ContainerClosePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ContainerOpenPacket.php b/src/pocketmine/network/mcpe/protocol/ContainerOpenPacket.php
index 6b46a61d7..caa9417f7 100644
--- a/src/pocketmine/network/mcpe/protocol/ContainerOpenPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ContainerOpenPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ContainerSetContentPacket.php b/src/pocketmine/network/mcpe/protocol/ContainerSetContentPacket.php
index 7c9006a7e..97e6ca7f1 100644
--- a/src/pocketmine/network/mcpe/protocol/ContainerSetContentPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ContainerSetContentPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ContainerSetDataPacket.php b/src/pocketmine/network/mcpe/protocol/ContainerSetDataPacket.php
index bd8db150c..8be563fe4 100644
--- a/src/pocketmine/network/mcpe/protocol/ContainerSetDataPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ContainerSetDataPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ContainerSetSlotPacket.php b/src/pocketmine/network/mcpe/protocol/ContainerSetSlotPacket.php
index 21d6a626a..8413337fc 100644
--- a/src/pocketmine/network/mcpe/protocol/ContainerSetSlotPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ContainerSetSlotPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/CraftingDataPacket.php b/src/pocketmine/network/mcpe/protocol/CraftingDataPacket.php
index a4655262f..673f7053e 100644
--- a/src/pocketmine/network/mcpe/protocol/CraftingDataPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/CraftingDataPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/CraftingEventPacket.php b/src/pocketmine/network/mcpe/protocol/CraftingEventPacket.php
index 4572a1199..c216c5e81 100644
--- a/src/pocketmine/network/mcpe/protocol/CraftingEventPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/CraftingEventPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/DataPacket.php b/src/pocketmine/network/mcpe/protocol/DataPacket.php
index 4e09d5c32..999781a39 100644
--- a/src/pocketmine/network/mcpe/protocol/DataPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/DataPacket.php
@@ -117,7 +117,7 @@ abstract class DataPacket extends BinaryStream{
 					$value = $this->getByte();
 					break;
 				case Entity::DATA_TYPE_SHORT:
-					$value = $this->getLShort(true); //signed
+					$value = $this->getSignedLShort();
 					break;
 				case Entity::DATA_TYPE_INT:
 					$value = $this->getVarInt();
diff --git a/src/pocketmine/network/mcpe/protocol/DisconnectPacket.php b/src/pocketmine/network/mcpe/protocol/DisconnectPacket.php
index 12aa936cb..bf99a3974 100644
--- a/src/pocketmine/network/mcpe/protocol/DisconnectPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/DisconnectPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/DropItemPacket.php b/src/pocketmine/network/mcpe/protocol/DropItemPacket.php
index 2daf977e0..62df7f639 100644
--- a/src/pocketmine/network/mcpe/protocol/DropItemPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/DropItemPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/EntityEventPacket.php b/src/pocketmine/network/mcpe/protocol/EntityEventPacket.php
index 3953d25e6..12cd06d2b 100644
--- a/src/pocketmine/network/mcpe/protocol/EntityEventPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/EntityEventPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/EntityFallPacket.php b/src/pocketmine/network/mcpe/protocol/EntityFallPacket.php
index fb102788a..3f81b1bdb 100644
--- a/src/pocketmine/network/mcpe/protocol/EntityFallPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/EntityFallPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ExplodePacket.php b/src/pocketmine/network/mcpe/protocol/ExplodePacket.php
index de1685bff..7c6af7be5 100644
--- a/src/pocketmine/network/mcpe/protocol/ExplodePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ExplodePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/FullChunkDataPacket.php b/src/pocketmine/network/mcpe/protocol/FullChunkDataPacket.php
index 4d854d4d7..cbf94323e 100644
--- a/src/pocketmine/network/mcpe/protocol/FullChunkDataPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/FullChunkDataPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/HurtArmorPacket.php b/src/pocketmine/network/mcpe/protocol/HurtArmorPacket.php
index 3cde53856..e827b96e9 100644
--- a/src/pocketmine/network/mcpe/protocol/HurtArmorPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/HurtArmorPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/InteractPacket.php b/src/pocketmine/network/mcpe/protocol/InteractPacket.php
index 7b0c6ea4c..6caecc326 100644
--- a/src/pocketmine/network/mcpe/protocol/InteractPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/InteractPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/InventoryActionPacket.php b/src/pocketmine/network/mcpe/protocol/InventoryActionPacket.php
index 366385722..3c7f1ec77 100644
--- a/src/pocketmine/network/mcpe/protocol/InventoryActionPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/InventoryActionPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ItemFrameDropItemPacket.php b/src/pocketmine/network/mcpe/protocol/ItemFrameDropItemPacket.php
index 7e4106cb5..8a40e6f2c 100644
--- a/src/pocketmine/network/mcpe/protocol/ItemFrameDropItemPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ItemFrameDropItemPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/LevelEventPacket.php b/src/pocketmine/network/mcpe/protocol/LevelEventPacket.php
index 4a1276c25..1ef9c30b7 100644
--- a/src/pocketmine/network/mcpe/protocol/LevelEventPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/LevelEventPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/LevelSoundEventPacket.php b/src/pocketmine/network/mcpe/protocol/LevelSoundEventPacket.php
index 8139caf91..6d068d26f 100644
--- a/src/pocketmine/network/mcpe/protocol/LevelSoundEventPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/LevelSoundEventPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/LoginPacket.php b/src/pocketmine/network/mcpe/protocol/LoginPacket.php
index 1024b296a..585516b07 100644
--- a/src/pocketmine/network/mcpe/protocol/LoginPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/LoginPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/MapInfoRequestPacket.php b/src/pocketmine/network/mcpe/protocol/MapInfoRequestPacket.php
index bd2fb1a3e..81c869a5f 100644
--- a/src/pocketmine/network/mcpe/protocol/MapInfoRequestPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/MapInfoRequestPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/MobArmorEquipmentPacket.php b/src/pocketmine/network/mcpe/protocol/MobArmorEquipmentPacket.php
index 599b2dd57..d7e7af371 100644
--- a/src/pocketmine/network/mcpe/protocol/MobArmorEquipmentPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/MobArmorEquipmentPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/MobEffectPacket.php b/src/pocketmine/network/mcpe/protocol/MobEffectPacket.php
index 0ddf3a1e6..95efc788f 100644
--- a/src/pocketmine/network/mcpe/protocol/MobEffectPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/MobEffectPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php b/src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php
index d3e8caca5..f5c48ee00 100644
--- a/src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/MoveEntityPacket.php b/src/pocketmine/network/mcpe/protocol/MoveEntityPacket.php
index bc151f0e9..1ee92be15 100644
--- a/src/pocketmine/network/mcpe/protocol/MoveEntityPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/MoveEntityPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
@@ -36,8 +38,8 @@ class MoveEntityPacket extends DataPacket{
 	public $yaw;
 	public $headYaw;
 	public $pitch;
-	public $onGround;
-	public $teleported;
+	public $onGround = false;
+	public $teleported = false;
 
 	public function decode(){
 		$this->entityRuntimeId = $this->getEntityRuntimeId();
diff --git a/src/pocketmine/network/mcpe/protocol/MovePlayerPacket.php b/src/pocketmine/network/mcpe/protocol/MovePlayerPacket.php
index 56c80cff7..6f44da290 100644
--- a/src/pocketmine/network/mcpe/protocol/MovePlayerPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/MovePlayerPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/PlaySoundPacket.php b/src/pocketmine/network/mcpe/protocol/PlaySoundPacket.php
index febcd8439..36a9e6b1b 100644
--- a/src/pocketmine/network/mcpe/protocol/PlaySoundPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/PlaySoundPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/PlayStatusPacket.php b/src/pocketmine/network/mcpe/protocol/PlayStatusPacket.php
index cc22b2ee2..733efb747 100644
--- a/src/pocketmine/network/mcpe/protocol/PlayStatusPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/PlayStatusPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/PlayerActionPacket.php b/src/pocketmine/network/mcpe/protocol/PlayerActionPacket.php
index d17ebb53d..c8d916de1 100644
--- a/src/pocketmine/network/mcpe/protocol/PlayerActionPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/PlayerActionPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/PlayerInputPacket.php b/src/pocketmine/network/mcpe/protocol/PlayerInputPacket.php
index 69e9bac23..853f34d8f 100644
--- a/src/pocketmine/network/mcpe/protocol/PlayerInputPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/PlayerInputPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/PlayerListPacket.php b/src/pocketmine/network/mcpe/protocol/PlayerListPacket.php
index 31183efb2..6de9d9607 100644
--- a/src/pocketmine/network/mcpe/protocol/PlayerListPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/PlayerListPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ProtocolInfo.php b/src/pocketmine/network/mcpe/protocol/ProtocolInfo.php
index cebbda355..e399bb864 100644
--- a/src/pocketmine/network/mcpe/protocol/ProtocolInfo.php
+++ b/src/pocketmine/network/mcpe/protocol/ProtocolInfo.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 /**
diff --git a/src/pocketmine/network/mcpe/protocol/RemoveBlockPacket.php b/src/pocketmine/network/mcpe/protocol/RemoveBlockPacket.php
index 377cb1dea..732be1c49 100644
--- a/src/pocketmine/network/mcpe/protocol/RemoveBlockPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/RemoveBlockPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/RemoveEntityPacket.php b/src/pocketmine/network/mcpe/protocol/RemoveEntityPacket.php
index f7c68b028..e8fc92398 100644
--- a/src/pocketmine/network/mcpe/protocol/RemoveEntityPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/RemoveEntityPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ReplaceItemInSlotPacket.php b/src/pocketmine/network/mcpe/protocol/ReplaceItemInSlotPacket.php
index 28e9039d5..01b021323 100644
--- a/src/pocketmine/network/mcpe/protocol/ReplaceItemInSlotPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ReplaceItemInSlotPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/RequestChunkRadiusPacket.php b/src/pocketmine/network/mcpe/protocol/RequestChunkRadiusPacket.php
index 390e99150..03446659a 100644
--- a/src/pocketmine/network/mcpe/protocol/RequestChunkRadiusPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/RequestChunkRadiusPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ResourcePackChunkDataPacket.php b/src/pocketmine/network/mcpe/protocol/ResourcePackChunkDataPacket.php
index 9612449db..a489e5872 100644
--- a/src/pocketmine/network/mcpe/protocol/ResourcePackChunkDataPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ResourcePackChunkDataPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/ResourcePackChunkRequestPacket.php b/src/pocketmine/network/mcpe/protocol/ResourcePackChunkRequestPacket.php
index d9b89bcef..100de455b 100644
--- a/src/pocketmine/network/mcpe/protocol/ResourcePackChunkRequestPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ResourcePackChunkRequestPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/ResourcePackClientResponsePacket.php b/src/pocketmine/network/mcpe/protocol/ResourcePackClientResponsePacket.php
index 78ced44fb..c19cb6ef8 100644
--- a/src/pocketmine/network/mcpe/protocol/ResourcePackClientResponsePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ResourcePackClientResponsePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/ResourcePackDataInfoPacket.php b/src/pocketmine/network/mcpe/protocol/ResourcePackDataInfoPacket.php
index c8970f55e..63ba1a3d4 100644
--- a/src/pocketmine/network/mcpe/protocol/ResourcePackDataInfoPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ResourcePackDataInfoPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/ResourcePackStackPacket.php b/src/pocketmine/network/mcpe/protocol/ResourcePackStackPacket.php
index 296062348..619cde61a 100644
--- a/src/pocketmine/network/mcpe/protocol/ResourcePackStackPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ResourcePackStackPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/ResourcePacksInfoPacket.php b/src/pocketmine/network/mcpe/protocol/ResourcePacksInfoPacket.php
index 6162056ae..56188f0d9 100644
--- a/src/pocketmine/network/mcpe/protocol/ResourcePacksInfoPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ResourcePacksInfoPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/RespawnPacket.php b/src/pocketmine/network/mcpe/protocol/RespawnPacket.php
index b14a29344..57f1d1dfa 100644
--- a/src/pocketmine/network/mcpe/protocol/RespawnPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/RespawnPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/RiderJumpPacket.php b/src/pocketmine/network/mcpe/protocol/RiderJumpPacket.php
index f13917fc8..bae4f4139 100644
--- a/src/pocketmine/network/mcpe/protocol/RiderJumpPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/RiderJumpPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/ServerToClientHandshakePacket.php b/src/pocketmine/network/mcpe/protocol/ServerToClientHandshakePacket.php
index ce6a236b0..55db716a7 100644
--- a/src/pocketmine/network/mcpe/protocol/ServerToClientHandshakePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ServerToClientHandshakePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetCommandsEnabledPacket.php b/src/pocketmine/network/mcpe/protocol/SetCommandsEnabledPacket.php
index 564ca7f8a..5c7c253d8 100644
--- a/src/pocketmine/network/mcpe/protocol/SetCommandsEnabledPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetCommandsEnabledPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetDifficultyPacket.php b/src/pocketmine/network/mcpe/protocol/SetDifficultyPacket.php
index 700a37d22..4abef492b 100644
--- a/src/pocketmine/network/mcpe/protocol/SetDifficultyPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetDifficultyPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetEntityDataPacket.php b/src/pocketmine/network/mcpe/protocol/SetEntityDataPacket.php
index 952dd8c3b..20f7a9c4a 100644
--- a/src/pocketmine/network/mcpe/protocol/SetEntityDataPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetEntityDataPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetEntityLinkPacket.php b/src/pocketmine/network/mcpe/protocol/SetEntityLinkPacket.php
index 74e48e3eb..9c5a56640 100644
--- a/src/pocketmine/network/mcpe/protocol/SetEntityLinkPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetEntityLinkPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetEntityMotionPacket.php b/src/pocketmine/network/mcpe/protocol/SetEntityMotionPacket.php
index 2998ad344..159f6bb8d 100644
--- a/src/pocketmine/network/mcpe/protocol/SetEntityMotionPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetEntityMotionPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetHealthPacket.php b/src/pocketmine/network/mcpe/protocol/SetHealthPacket.php
index cc3d1b582..30b5a2f58 100644
--- a/src/pocketmine/network/mcpe/protocol/SetHealthPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetHealthPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetPlayerGameTypePacket.php b/src/pocketmine/network/mcpe/protocol/SetPlayerGameTypePacket.php
index 66373af8f..60da94dd9 100644
--- a/src/pocketmine/network/mcpe/protocol/SetPlayerGameTypePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetPlayerGameTypePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetSpawnPositionPacket.php b/src/pocketmine/network/mcpe/protocol/SetSpawnPositionPacket.php
index e4c079a53..d28ae2699 100644
--- a/src/pocketmine/network/mcpe/protocol/SetSpawnPositionPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetSpawnPositionPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetTimePacket.php b/src/pocketmine/network/mcpe/protocol/SetTimePacket.php
index 6368a064b..ffb02b078 100644
--- a/src/pocketmine/network/mcpe/protocol/SetTimePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetTimePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/SetTitlePacket.php b/src/pocketmine/network/mcpe/protocol/SetTitlePacket.php
index 81ca445e6..9fca39d9a 100644
--- a/src/pocketmine/network/mcpe/protocol/SetTitlePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SetTitlePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/ShowCreditsPacket.php b/src/pocketmine/network/mcpe/protocol/ShowCreditsPacket.php
index 03b888b0e..a89a52d8d 100644
--- a/src/pocketmine/network/mcpe/protocol/ShowCreditsPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/ShowCreditsPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/SpawnExperienceOrbPacket.php b/src/pocketmine/network/mcpe/protocol/SpawnExperienceOrbPacket.php
index 4b1271432..441f6cf90 100644
--- a/src/pocketmine/network/mcpe/protocol/SpawnExperienceOrbPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/SpawnExperienceOrbPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/StartGamePacket.php b/src/pocketmine/network/mcpe/protocol/StartGamePacket.php
index df2738229..cc0713044 100644
--- a/src/pocketmine/network/mcpe/protocol/StartGamePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/StartGamePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
@@ -45,13 +47,13 @@ class StartGamePacket extends DataPacket{
 	public $spawnX;
 	public $spawnY;
 	public $spawnZ;
-	public $hasAchievementsDisabled = 1;
+	public $hasAchievementsDisabled = true;
 	public $dayCycleStopTime = -1; //-1 = not stopped, any positive value = stopped at that time
-	public $eduMode = 0;
+	public $eduMode = false;
 	public $rainLevel;
 	public $lightningLevel;
 	public $commandsEnabled;
-	public $isTexturePacksRequired = 0;
+	public $isTexturePacksRequired = true;
 	public $levelId = ""; //base64 string, usually the same as world folder name in vanilla
 	public $worldName;
 	public $premiumWorldTemplateId = "";
diff --git a/src/pocketmine/network/mcpe/protocol/StopSoundPacket.php b/src/pocketmine/network/mcpe/protocol/StopSoundPacket.php
index 3a503cc2d..13e18d093 100644
--- a/src/pocketmine/network/mcpe/protocol/StopSoundPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/StopSoundPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
diff --git a/src/pocketmine/network/mcpe/protocol/TakeItemEntityPacket.php b/src/pocketmine/network/mcpe/protocol/TakeItemEntityPacket.php
index d4b4b4fc1..b799682c3 100644
--- a/src/pocketmine/network/mcpe/protocol/TakeItemEntityPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/TakeItemEntityPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/TextPacket.php b/src/pocketmine/network/mcpe/protocol/TextPacket.php
index a0a42515f..aae7ab670 100644
--- a/src/pocketmine/network/mcpe/protocol/TextPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/TextPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/TransferPacket.php b/src/pocketmine/network/mcpe/protocol/TransferPacket.php
index 44a0c1b97..91c9d6edf 100644
--- a/src/pocketmine/network/mcpe/protocol/TransferPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/TransferPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/UnknownPacket.php b/src/pocketmine/network/mcpe/protocol/UnknownPacket.php
index ebedebe64..f8d914a49 100644
--- a/src/pocketmine/network/mcpe/protocol/UnknownPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/UnknownPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
@@ -43,7 +45,7 @@ class UnknownPacket extends DataPacket{
 
 	public function decode(){
 		$this->offset -= 1; //Rewind one byte so we can read the PID
-		$this->payload = $this->get(true);
+		$this->payload = $this->get(0);
 	}
 
 	public function encode(){
diff --git a/src/pocketmine/network/mcpe/protocol/UpdateAttributesPacket.php b/src/pocketmine/network/mcpe/protocol/UpdateAttributesPacket.php
index 9fa52dfc8..5c6a283a2 100644
--- a/src/pocketmine/network/mcpe/protocol/UpdateAttributesPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/UpdateAttributesPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/UpdateBlockPacket.php b/src/pocketmine/network/mcpe/protocol/UpdateBlockPacket.php
index 8f35ca61c..0747696f2 100644
--- a/src/pocketmine/network/mcpe/protocol/UpdateBlockPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/UpdateBlockPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/UpdateTradePacket.php b/src/pocketmine/network/mcpe/protocol/UpdateTradePacket.php
index 6a8f76e2e..4086090cd 100644
--- a/src/pocketmine/network/mcpe/protocol/UpdateTradePacket.php
+++ b/src/pocketmine/network/mcpe/protocol/UpdateTradePacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol;
 
@@ -51,7 +53,7 @@ class UpdateTradePacket extends DataPacket{
 		$this->traderEid = $this->getEntityUniqueId();
 		$this->playerEid = $this->getEntityUniqueId();
 		$this->displayName = $this->getString();
-		$this->offers = $this->get(true);
+		$this->offers = $this->get(0);
 	}
 
 	public function encode(){
diff --git a/src/pocketmine/network/mcpe/protocol/UseItemPacket.php b/src/pocketmine/network/mcpe/protocol/UseItemPacket.php
index a47bde8a0..0f1929897 100644
--- a/src/pocketmine/network/mcpe/protocol/UseItemPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/UseItemPacket.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\mcpe\protocol;
 
 #include <rules/DataPacket.h>
diff --git a/src/pocketmine/network/mcpe/protocol/types/WindowTypes.php b/src/pocketmine/network/mcpe/protocol/types/WindowTypes.php
index 667b69674..9caeac76f 100644
--- a/src/pocketmine/network/mcpe/protocol/types/WindowTypes.php
+++ b/src/pocketmine/network/mcpe/protocol/types/WindowTypes.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\network\mcpe\protocol\types;
 
diff --git a/src/pocketmine/network/query/QueryHandler.php b/src/pocketmine/network/query/QueryHandler.php
index a73c47a9a..2b68337b7 100644
--- a/src/pocketmine/network/query/QueryHandler.php
+++ b/src/pocketmine/network/query/QueryHandler.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Implementation of the UT3 Query Protocol (GameSpot)
  * Source: http://wiki.unrealadmin.org/UT3_query_protocol
diff --git a/src/pocketmine/network/rcon/RCON.php b/src/pocketmine/network/rcon/RCON.php
index c9436a45a..e6ebfcfa9 100644
--- a/src/pocketmine/network/rcon/RCON.php
+++ b/src/pocketmine/network/rcon/RCON.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Implementation of the Source RCON Protocol to allow remote console commands
  * Source: https://developer.valvesoftware.com/wiki/Source_RCON_Protocol
diff --git a/src/pocketmine/network/rcon/RCONInstance.php b/src/pocketmine/network/rcon/RCONInstance.php
index cb0719495..adc384504 100644
--- a/src/pocketmine/network/rcon/RCONInstance.php
+++ b/src/pocketmine/network/rcon/RCONInstance.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\network\rcon;
 
 use pocketmine\Thread;
diff --git a/src/pocketmine/network/upnp/UPnP.php b/src/pocketmine/network/upnp/UPnP.php
index 9d8baecc7..c1942942a 100644
--- a/src/pocketmine/network/upnp/UPnP.php
+++ b/src/pocketmine/network/upnp/UPnP.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * UPnP port forwarding support. Only for Windows
  */
diff --git a/src/pocketmine/permission/BanEntry.php b/src/pocketmine/permission/BanEntry.php
index 7ec82031a..4d04bd653 100644
--- a/src/pocketmine/permission/BanEntry.php
+++ b/src/pocketmine/permission/BanEntry.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 use pocketmine\utils\MainLogger;
diff --git a/src/pocketmine/permission/BanList.php b/src/pocketmine/permission/BanList.php
index 5c4102152..e8d064ef8 100644
--- a/src/pocketmine/permission/BanList.php
+++ b/src/pocketmine/permission/BanList.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 use pocketmine\Server;
diff --git a/src/pocketmine/permission/DefaultPermissions.php b/src/pocketmine/permission/DefaultPermissions.php
index 10852f80a..0752ab508 100644
--- a/src/pocketmine/permission/DefaultPermissions.php
+++ b/src/pocketmine/permission/DefaultPermissions.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 use pocketmine\Server;
diff --git a/src/pocketmine/permission/Permissible.php b/src/pocketmine/permission/Permissible.php
index 88f1eba63..a188eefd6 100644
--- a/src/pocketmine/permission/Permissible.php
+++ b/src/pocketmine/permission/Permissible.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 use pocketmine\plugin\Plugin;
diff --git a/src/pocketmine/permission/PermissibleBase.php b/src/pocketmine/permission/PermissibleBase.php
index a298ac828..53a3f8546 100644
--- a/src/pocketmine/permission/PermissibleBase.php
+++ b/src/pocketmine/permission/PermissibleBase.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 use pocketmine\event\Timings;
diff --git a/src/pocketmine/permission/Permission.php b/src/pocketmine/permission/Permission.php
index e46216f7f..f477827ac 100644
--- a/src/pocketmine/permission/Permission.php
+++ b/src/pocketmine/permission/Permission.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Permission related classes
  */
diff --git a/src/pocketmine/permission/PermissionAttachment.php b/src/pocketmine/permission/PermissionAttachment.php
index db6c6ae20..dae4c3ffb 100644
--- a/src/pocketmine/permission/PermissionAttachment.php
+++ b/src/pocketmine/permission/PermissionAttachment.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 use pocketmine\plugin\Plugin;
diff --git a/src/pocketmine/permission/PermissionAttachmentInfo.php b/src/pocketmine/permission/PermissionAttachmentInfo.php
index 78f5f8650..56cea0120 100644
--- a/src/pocketmine/permission/PermissionAttachmentInfo.php
+++ b/src/pocketmine/permission/PermissionAttachmentInfo.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 
diff --git a/src/pocketmine/permission/PermissionRemovedExecutor.php b/src/pocketmine/permission/PermissionRemovedExecutor.php
index 2ecfeed58..e6e3f811a 100644
--- a/src/pocketmine/permission/PermissionRemovedExecutor.php
+++ b/src/pocketmine/permission/PermissionRemovedExecutor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 
diff --git a/src/pocketmine/permission/ServerOperator.php b/src/pocketmine/permission/ServerOperator.php
index 0bbcecbfc..944c648ff 100644
--- a/src/pocketmine/permission/ServerOperator.php
+++ b/src/pocketmine/permission/ServerOperator.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\permission;
 
 
diff --git a/src/pocketmine/plugin/EventExecutor.php b/src/pocketmine/plugin/EventExecutor.php
index b7f94e709..01e7ad211 100644
--- a/src/pocketmine/plugin/EventExecutor.php
+++ b/src/pocketmine/plugin/EventExecutor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\event\Event;
diff --git a/src/pocketmine/plugin/MethodEventExecutor.php b/src/pocketmine/plugin/MethodEventExecutor.php
index a47239572..d69a043d1 100644
--- a/src/pocketmine/plugin/MethodEventExecutor.php
+++ b/src/pocketmine/plugin/MethodEventExecutor.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\event\Event;
diff --git a/src/pocketmine/plugin/PharPluginLoader.php b/src/pocketmine/plugin/PharPluginLoader.php
index c5cbf77db..6c35e145a 100644
--- a/src/pocketmine/plugin/PharPluginLoader.php
+++ b/src/pocketmine/plugin/PharPluginLoader.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\event\plugin\PluginDisableEvent;
diff --git a/src/pocketmine/plugin/Plugin.php b/src/pocketmine/plugin/Plugin.php
index 9c30693e6..befe5a541 100644
--- a/src/pocketmine/plugin/Plugin.php
+++ b/src/pocketmine/plugin/Plugin.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Plugin related classes
  */
diff --git a/src/pocketmine/plugin/PluginBase.php b/src/pocketmine/plugin/PluginBase.php
index d998ea5bb..63b2d4d66 100644
--- a/src/pocketmine/plugin/PluginBase.php
+++ b/src/pocketmine/plugin/PluginBase.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\command\Command;
diff --git a/src/pocketmine/plugin/PluginDescription.php b/src/pocketmine/plugin/PluginDescription.php
index d725e242c..fd34568e0 100644
--- a/src/pocketmine/plugin/PluginDescription.php
+++ b/src/pocketmine/plugin/PluginDescription.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\permission\Permission;
diff --git a/src/pocketmine/plugin/PluginException.php b/src/pocketmine/plugin/PluginException.php
index e29559642..b7338495a 100644
--- a/src/pocketmine/plugin/PluginException.php
+++ b/src/pocketmine/plugin/PluginException.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\utils\ServerException;
diff --git a/src/pocketmine/plugin/PluginLoadOrder.php b/src/pocketmine/plugin/PluginLoadOrder.php
index 85bd3da40..80e94d99a 100644
--- a/src/pocketmine/plugin/PluginLoadOrder.php
+++ b/src/pocketmine/plugin/PluginLoadOrder.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 
diff --git a/src/pocketmine/plugin/PluginLoader.php b/src/pocketmine/plugin/PluginLoader.php
index 720786ac5..eeada04ad 100644
--- a/src/pocketmine/plugin/PluginLoader.php
+++ b/src/pocketmine/plugin/PluginLoader.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 /**
diff --git a/src/pocketmine/plugin/PluginLogger.php b/src/pocketmine/plugin/PluginLogger.php
index 12cf47dfc..34d173fac 100644
--- a/src/pocketmine/plugin/PluginLogger.php
+++ b/src/pocketmine/plugin/PluginLogger.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use LogLevel;
diff --git a/src/pocketmine/plugin/PluginManager.php b/src/pocketmine/plugin/PluginManager.php
index 98edbad49..3f6c01a81 100644
--- a/src/pocketmine/plugin/PluginManager.php
+++ b/src/pocketmine/plugin/PluginManager.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\command\defaults\TimingsCommand;
diff --git a/src/pocketmine/plugin/RegisteredListener.php b/src/pocketmine/plugin/RegisteredListener.php
index c42f477f9..b5a6408f2 100644
--- a/src/pocketmine/plugin/RegisteredListener.php
+++ b/src/pocketmine/plugin/RegisteredListener.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\event\Cancellable;
diff --git a/src/pocketmine/plugin/ScriptPluginLoader.php b/src/pocketmine/plugin/ScriptPluginLoader.php
index 15e9267cc..c96511e8d 100644
--- a/src/pocketmine/plugin/ScriptPluginLoader.php
+++ b/src/pocketmine/plugin/ScriptPluginLoader.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\plugin;
 
 use pocketmine\event\plugin\PluginDisableEvent;
diff --git a/src/pocketmine/resourcepacks/ResourcePack.php b/src/pocketmine/resourcepacks/ResourcePack.php
index d4eeeb0e6..afc971c03 100644
--- a/src/pocketmine/resourcepacks/ResourcePack.php
+++ b/src/pocketmine/resourcepacks/ResourcePack.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\resourcepacks;
 
diff --git a/src/pocketmine/resourcepacks/ResourcePackInfoEntry.php b/src/pocketmine/resourcepacks/ResourcePackInfoEntry.php
index db955c0cd..f49e7bac8 100644
--- a/src/pocketmine/resourcepacks/ResourcePackInfoEntry.php
+++ b/src/pocketmine/resourcepacks/ResourcePackInfoEntry.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\resourcepacks;
 
 class ResourcePackInfoEntry{
diff --git a/src/pocketmine/resourcepacks/ResourcePackManager.php b/src/pocketmine/resourcepacks/ResourcePackManager.php
index 339fa113d..620b5af47 100644
--- a/src/pocketmine/resourcepacks/ResourcePackManager.php
+++ b/src/pocketmine/resourcepacks/ResourcePackManager.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\resourcepacks;
 
diff --git a/src/pocketmine/resourcepacks/ZippedResourcePack.php b/src/pocketmine/resourcepacks/ZippedResourcePack.php
index 80af52660..99e865f5d 100644
--- a/src/pocketmine/resourcepacks/ZippedResourcePack.php
+++ b/src/pocketmine/resourcepacks/ZippedResourcePack.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\resourcepacks;
 
diff --git a/src/pocketmine/scheduler/AsyncPool.php b/src/pocketmine/scheduler/AsyncPool.php
index 638169e00..ce6c18a6f 100644
--- a/src/pocketmine/scheduler/AsyncPool.php
+++ b/src/pocketmine/scheduler/AsyncPool.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 use pocketmine\event\Timings;
diff --git a/src/pocketmine/scheduler/AsyncTask.php b/src/pocketmine/scheduler/AsyncTask.php
index 3c531f206..8a66fd412 100644
--- a/src/pocketmine/scheduler/AsyncTask.php
+++ b/src/pocketmine/scheduler/AsyncTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 use pocketmine\Collectable;
diff --git a/src/pocketmine/scheduler/AsyncWorker.php b/src/pocketmine/scheduler/AsyncWorker.php
index 0f77c96d4..e6e2c2037 100644
--- a/src/pocketmine/scheduler/AsyncWorker.php
+++ b/src/pocketmine/scheduler/AsyncWorker.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 use pocketmine\Worker;
@@ -36,7 +38,7 @@ class AsyncWorker extends Worker{
 	public function run(){
 		$this->registerClassLoader();
 		gc_enable();
-		ini_set("memory_limit", -1);
+		ini_set("memory_limit", '-1');
 
 		global $store;
 		$store = [];
diff --git a/src/pocketmine/scheduler/BulkCurlTask.php b/src/pocketmine/scheduler/BulkCurlTask.php
index c4d15ac9b..b4b1fa5bb 100644
--- a/src/pocketmine/scheduler/BulkCurlTask.php
+++ b/src/pocketmine/scheduler/BulkCurlTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 use pocketmine\utils\Utils;
diff --git a/src/pocketmine/scheduler/FileWriteTask.php b/src/pocketmine/scheduler/FileWriteTask.php
index 494eb4a37..024f7e911 100644
--- a/src/pocketmine/scheduler/FileWriteTask.php
+++ b/src/pocketmine/scheduler/FileWriteTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 class FileWriteTask extends AsyncTask{
diff --git a/src/pocketmine/scheduler/GarbageCollectionTask.php b/src/pocketmine/scheduler/GarbageCollectionTask.php
index 0b99aed78..25c1f9845 100644
--- a/src/pocketmine/scheduler/GarbageCollectionTask.php
+++ b/src/pocketmine/scheduler/GarbageCollectionTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 class GarbageCollectionTask extends AsyncTask{
diff --git a/src/pocketmine/scheduler/PluginTask.php b/src/pocketmine/scheduler/PluginTask.php
index 645720dbf..e2cf85171 100644
--- a/src/pocketmine/scheduler/PluginTask.php
+++ b/src/pocketmine/scheduler/PluginTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 use pocketmine\plugin\Plugin;
diff --git a/src/pocketmine/scheduler/SendUsageTask.php b/src/pocketmine/scheduler/SendUsageTask.php
index 688ed7432..a8eb9e25e 100644
--- a/src/pocketmine/scheduler/SendUsageTask.php
+++ b/src/pocketmine/scheduler/SendUsageTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 use pocketmine\network\mcpe\protocol\ProtocolInfo;
@@ -42,7 +44,7 @@ class SendUsageTask extends AsyncTask{
 		$data = [];
 		$data["uniqueServerId"] = $server->getServerUniqueId()->toString();
 		$data["uniqueMachineId"] = Utils::getMachineUniqueId()->toString();
-		$data["uniqueRequestId"] = UUID::fromData($server->getServerUniqueId(), microtime(true))->toString();
+		$data["uniqueRequestId"] = UUID::fromData($server->getServerUniqueId()->toString(), microtime(false))->toString();
 
 		switch($type){
 			case self::TYPE_OPEN:
diff --git a/src/pocketmine/scheduler/ServerScheduler.php b/src/pocketmine/scheduler/ServerScheduler.php
index 28610f1b4..fba583e91 100644
--- a/src/pocketmine/scheduler/ServerScheduler.php
+++ b/src/pocketmine/scheduler/ServerScheduler.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Task scheduling related classes
  */
diff --git a/src/pocketmine/scheduler/Task.php b/src/pocketmine/scheduler/Task.php
index fc0681914..a7c0b4b39 100644
--- a/src/pocketmine/scheduler/Task.php
+++ b/src/pocketmine/scheduler/Task.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 /**
diff --git a/src/pocketmine/scheduler/TaskHandler.php b/src/pocketmine/scheduler/TaskHandler.php
index fbdb1eb91..7f7119e52 100644
--- a/src/pocketmine/scheduler/TaskHandler.php
+++ b/src/pocketmine/scheduler/TaskHandler.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\scheduler;
 
 use pocketmine\event\Timings;
diff --git a/src/pocketmine/tile/Chest.php b/src/pocketmine/tile/Chest.php
index 3bffa58d6..708c3b789 100644
--- a/src/pocketmine/tile/Chest.php
+++ b/src/pocketmine/tile/Chest.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\inventory\ChestInventory;
diff --git a/src/pocketmine/tile/Container.php b/src/pocketmine/tile/Container.php
index 6d39ca809..6d2025c6e 100644
--- a/src/pocketmine/tile/Container.php
+++ b/src/pocketmine/tile/Container.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/tile/EnchantTable.php b/src/pocketmine/tile/EnchantTable.php
index 8f0b3c45c..d6ff0ba32 100644
--- a/src/pocketmine/tile/EnchantTable.php
+++ b/src/pocketmine/tile/EnchantTable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\nbt\tag\CompoundTag;
diff --git a/src/pocketmine/tile/FlowerPot.php b/src/pocketmine/tile/FlowerPot.php
index a2c4e1611..5897918c0 100644
--- a/src/pocketmine/tile/FlowerPot.php
+++ b/src/pocketmine/tile/FlowerPot.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/tile/Furnace.php b/src/pocketmine/tile/Furnace.php
index 6cb6ada7e..e960e73d8 100644
--- a/src/pocketmine/tile/Furnace.php
+++ b/src/pocketmine/tile/Furnace.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/tile/ItemFrame.php b/src/pocketmine/tile/ItemFrame.php
index 0f4a62a90..e63cd8ccd 100644
--- a/src/pocketmine/tile/ItemFrame.php
+++ b/src/pocketmine/tile/ItemFrame.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/tile/Nameable.php b/src/pocketmine/tile/Nameable.php
index 3fca81e5c..6651c927d 100644
--- a/src/pocketmine/tile/Nameable.php
+++ b/src/pocketmine/tile/Nameable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 
diff --git a/src/pocketmine/tile/Sign.php b/src/pocketmine/tile/Sign.php
index e69d653e3..e91163e81 100644
--- a/src/pocketmine/tile/Sign.php
+++ b/src/pocketmine/tile/Sign.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\event\block\SignChangeEvent;
diff --git a/src/pocketmine/tile/Skull.php b/src/pocketmine/tile/Skull.php
index 91be14c0f..f6afc6559 100644
--- a/src/pocketmine/tile/Skull.php
+++ b/src/pocketmine/tile/Skull.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/tile/Spawnable.php b/src/pocketmine/tile/Spawnable.php
index 0d85b7ea3..cec533188 100644
--- a/src/pocketmine/tile/Spawnable.php
+++ b/src/pocketmine/tile/Spawnable.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\tile;
 
 use pocketmine\level\Level;
diff --git a/src/pocketmine/tile/Tile.php b/src/pocketmine/tile/Tile.php
index a66c5f512..1138addd6 100644
--- a/src/pocketmine/tile/Tile.php
+++ b/src/pocketmine/tile/Tile.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * All the Tile classes and related classes
  */
diff --git a/src/pocketmine/updater/AutoUpdater.php b/src/pocketmine/updater/AutoUpdater.php
index 23461e4fe..e9e12e208 100644
--- a/src/pocketmine/updater/AutoUpdater.php
+++ b/src/pocketmine/updater/AutoUpdater.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\updater;
 
 use pocketmine\Player;
diff --git a/src/pocketmine/updater/UpdateCheckTask.php b/src/pocketmine/updater/UpdateCheckTask.php
index 05923493b..2821e41be 100644
--- a/src/pocketmine/updater/UpdateCheckTask.php
+++ b/src/pocketmine/updater/UpdateCheckTask.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\updater;
 
diff --git a/src/pocketmine/utils/BinaryStream.php b/src/pocketmine/utils/BinaryStream.php
index 0f6e213fa..31619b2ce 100644
--- a/src/pocketmine/utils/BinaryStream.php
+++ b/src/pocketmine/utils/BinaryStream.php
@@ -29,10 +29,12 @@ use pocketmine\item\Item;
 
 class BinaryStream{
 
+	/** @var int */
 	public $offset;
+	/** @var string */
 	public $buffer;
 
-	public function __construct($buffer = "", $offset = 0){
+	public function __construct(string $buffer = "", int $offset = 0){
 		$this->buffer = $buffer;
 		$this->offset = $offset;
 	}
@@ -42,24 +44,24 @@ class BinaryStream{
 		$this->offset = 0;
 	}
 
-	public function setBuffer($buffer = null, $offset = 0){
+	public function setBuffer(string $buffer = "", int $offset = 0){
 		$this->buffer = $buffer;
-		$this->offset = (int) $offset;
+		$this->offset = $offset;
 	}
 
-	public function getOffset(){
+	public function getOffset() : int{
 		return $this->offset;
 	}
 
-	public function getBuffer(){
+	public function getBuffer() : string{
 		return $this->buffer;
 	}
 
-	public function get($len){
+	public function get(int $len) : string{
 		if($len < 0){
 			$this->offset = strlen($this->buffer) - 1;
 			return "";
-		}elseif($len === true){
+		}elseif($len === 0){
 			$str = substr($this->buffer, $this->offset);
 			$this->offset = strlen($this->buffer);
 			return $str;
@@ -68,115 +70,19 @@ class BinaryStream{
 		return $len === 1 ? $this->buffer{$this->offset++} : substr($this->buffer, ($this->offset += $len) - $len, $len);
 	}
 
-	public function put($str){
+	public function put(string $str){
 		$this->buffer .= $str;
 	}
 
+
 	public function getBool() : bool{
 		return $this->get(1) !== "\x00";
 	}
 
-	public function putBool($v){
+	public function putBool(bool $v){
 		$this->buffer .= ($v ? "\x01" : "\x00");
 	}
 
-	public function getLong(){
-		return Binary::readLong($this->get(8));
-	}
-
-	public function putLong($v){
-		$this->buffer .= Binary::writeLong($v);
-	}
-
-	public function getInt(){
-		return Binary::readInt($this->get(4));
-	}
-
-	public function putInt($v){
-		$this->buffer .= Binary::writeInt($v);
-	}
-
-	public function getLLong(){
-		return Binary::readLLong($this->get(8));
-	}
-
-	public function putLLong($v){
-		$this->buffer .= Binary::writeLLong($v);
-	}
-
-	public function getLInt(){
-		return Binary::readLInt($this->get(4));
-	}
-
-	public function putLInt($v){
-		$this->buffer .= Binary::writeLInt($v);
-	}
-
-	public function getSignedShort(){
-		return Binary::readSignedShort($this->get(2));
-	}
-
-	public function putShort($v){
-		$this->buffer .= Binary::writeShort($v);
-	}
-
-	public function getShort(){
-		return Binary::readShort($this->get(2));
-	}
-
-	public function putSignedShort($v){
-		$this->buffer .= Binary::writeShort($v);
-	}
-
-	public function getFloat(){
-		return Binary::readFloat($this->get(4));
-	}
-
-	public function getRoundedFloat(int $accuracy){
-		return Binary::readRoundedFloat($this->get(4), $accuracy);
-	}
-
-	public function putFloat($v){
-		$this->buffer .= Binary::writeFloat($v);
-	}
-
-	public function getLShort($signed = true){
-		return $signed ? Binary::readSignedLShort($this->get(2)) : Binary::readLShort($this->get(2));
-	}
-
-	public function putLShort($v){
-		$this->buffer .= Binary::writeLShort($v);
-	}
-
-	public function getLFloat(){
-		return Binary::readLFloat($this->get(4));
-	}
-
-	public function getRoundedLFloat(int $accuracy){
-		return Binary::readRoundedLFloat($this->get(4), $accuracy);
-	}
-
-	public function putLFloat($v){
-		$this->buffer .= Binary::writeLFloat($v);
-	}
-
-
-	public function getTriad(){
-		return Binary::readTriad($this->get(3));
-	}
-
-	public function putTriad($v){
-		$this->buffer .= Binary::writeTriad($v);
-	}
-
-
-	public function getLTriad(){
-		return Binary::readLTriad($this->get(3));
-	}
-
-	public function putLTriad($v){
-		$this->buffer .= Binary::writeLTriad($v);
-	}
 
 	public function getByte() : int{
 		return ord($this->buffer{$this->offset++});
@@ -186,7 +92,131 @@ class BinaryStream{
 		$this->buffer .= chr($v);
 	}
 
-	public function getUUID(){
+
+	public function getShort() : int{
+		return Binary::readShort($this->get(2));
+	}
+
+	public function getSignedShort() : int{
+		return Binary::readSignedShort($this->get(2));
+	}
+
+	public function putShort(int $v){
+		$this->buffer .= Binary::writeShort($v);
+	}
+
+	public function getLShort() : int{
+		return Binary::readLShort($this->get(2));
+	}
+
+	public function getSignedLShort() : int{
+		return Binary::readSignedLShort($this->get(2));
+	}
+
+	public function putLShort(int $v){
+		$this->buffer .= Binary::writeLShort($v);
+	}
+
+
+	public function getTriad() : int{
+		return Binary::readTriad($this->get(3));
+	}
+
+	public function putTriad(int $v){
+		$this->buffer .= Binary::writeTriad($v);
+	}
+
+	public function getLTriad() : int{
+		return Binary::readLTriad($this->get(3));
+	}
+
+	public function putLTriad(int $v){
+		$this->buffer .= Binary::writeLTriad($v);
+	}
+
+
+	public function getInt() : int{
+		return Binary::readInt($this->get(4));
+	}
+
+	public function putInt(int $v){
+		$this->buffer .= Binary::writeInt($v);
+	}
+
+	public function getLInt() : int{
+		return Binary::readLInt($this->get(4));
+	}
+
+	public function putLInt(int $v){
+		$this->buffer .= Binary::writeLInt($v);
+	}
+
+
+	public function getFloat() : float{
+		return Binary::readFloat($this->get(4));
+	}
+
+	public function getRoundedFloat(int $accuracy) : float{
+		return Binary::readRoundedFloat($this->get(4), $accuracy);
+	}
+
+	public function putFloat(float $v){
+		$this->buffer .= Binary::writeFloat($v);
+	}
+
+	public function getLFloat() : float{
+		return Binary::readLFloat($this->get(4));
+	}
+
+	public function getRoundedLFloat(int $accuracy) : float{
+		return Binary::readRoundedLFloat($this->get(4), $accuracy);
+	}
+
+	public function putLFloat(float $v){
+		$this->buffer .= Binary::writeLFloat($v);
+	}
+
+
+	/**
+	 * @return int|string
+	 */
+	public function getLong(){
+		return Binary::readLong($this->get(8));
+	}
+
+	/**
+	 * @param int|string $v
+	 */
+	public function putLong($v){
+		$this->buffer .= Binary::writeLong($v);
+	}
+
+	/**
+	 * @return int|string
+	 */
+	public function getLLong(){
+		return Binary::readLLong($this->get(8));
+	}
+
+	/**
+	 * @param int|string $v
+	 */
+	public function putLLong($v){
+		$this->buffer .= Binary::writeLLong($v);
+	}
+
+
+	public function getString() : string{
+		return $this->get($this->getUnsignedVarInt());
+	}
+
+	public function putString(string $v){
+		$this->putUnsignedVarInt(strlen($v));
+		$this->put($v);
+	}
+
+
+	public function getUUID() : UUID{
 		//This is actually two little-endian longs: UUID Most followed by UUID Least
 		$part1 = $this->getLInt();
 		$part0 = $this->getLInt();
@@ -202,7 +232,7 @@ class BinaryStream{
 		$this->putLInt($uuid->getPart(2));
 	}
 
-	public function getSlot(){
+	public function getSlot() : Item{
 		$id = $this->getVarInt();
 		if($id <= 0){
 			return Item::get(0, 0, 0);
@@ -260,20 +290,11 @@ class BinaryStream{
 		$this->putVarInt(0); //CanDestroy entry count (TODO)
 	}
 
-	public function getString(){
-		return $this->get($this->getUnsignedVarInt());
-	}
-
-	public function putString($v){
-		$this->putUnsignedVarInt(strlen($v));
-		$this->put($v);
-	}
-
 	/**
 	 * Reads a 32-bit variable-length unsigned integer from the buffer and returns it.
 	 * @return int
 	 */
-	public function getUnsignedVarInt(){
+	public function getUnsignedVarInt() : int{
 		return Binary::readUnsignedVarInt($this->buffer, $this->offset);
 	}
 
@@ -281,7 +302,7 @@ class BinaryStream{
 	 * Writes a 32-bit variable-length unsigned integer to the end of the buffer.
 	 * @param int $v
 	 */
-	public function putUnsignedVarInt($v){
+	public function putUnsignedVarInt(int $v){
 		$this->put(Binary::writeUnsignedVarInt($v));
 	}
 
@@ -289,7 +310,7 @@ class BinaryStream{
 	 * Reads a 32-bit zigzag-encoded variable-length integer from the buffer and returns it.
 	 * @return int
 	 */
-	public function getVarInt(){
+	public function getVarInt() : int{
 		return Binary::readVarInt($this->buffer, $this->offset);
 	}
 
@@ -297,7 +318,7 @@ class BinaryStream{
 	 * Writes a 32-bit zigzag-encoded variable-length integer to the end of the buffer.
 	 * @param int $v
 	 */
-	public function putVarInt($v){
+	public function putVarInt(int $v){
 		$this->put(Binary::writeVarInt($v));
 	}
 
@@ -333,7 +354,11 @@ class BinaryStream{
 		$this->buffer .= Binary::writeVarLong($v);
 	}
 
-	public function feof(){
+	/**
+	 * Returns whether the offset has reached the end of the buffer.
+	 * @return bool
+	 */
+	public function feof() : bool{
 		return !isset($this->buffer{$this->offset});
 	}
 }
diff --git a/src/pocketmine/utils/BlockIterator.php b/src/pocketmine/utils/BlockIterator.php
index f0de2987d..af13843fc 100644
--- a/src/pocketmine/utils/BlockIterator.php
+++ b/src/pocketmine/utils/BlockIterator.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 use pocketmine\block\Block;
diff --git a/src/pocketmine/utils/Color.php b/src/pocketmine/utils/Color.php
index 6913e7a92..ae2b69fb0 100644
--- a/src/pocketmine/utils/Color.php
+++ b/src/pocketmine/utils/Color.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 
 namespace pocketmine\utils;
 
diff --git a/src/pocketmine/utils/Config.php b/src/pocketmine/utils/Config.php
index 9b9a2211f..0430e6c61 100644
--- a/src/pocketmine/utils/Config.php
+++ b/src/pocketmine/utils/Config.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 use pocketmine\scheduler\FileWriteTask;
diff --git a/src/pocketmine/utils/MainLogger.php b/src/pocketmine/utils/MainLogger.php
index ba69c40d5..3019be4eb 100644
--- a/src/pocketmine/utils/MainLogger.php
+++ b/src/pocketmine/utils/MainLogger.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 use LogLevel;
diff --git a/src/pocketmine/utils/Random.php b/src/pocketmine/utils/Random.php
index 3970274f4..20b9c9f5f 100644
--- a/src/pocketmine/utils/Random.php
+++ b/src/pocketmine/utils/Random.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 /**
diff --git a/src/pocketmine/utils/ReversePriorityQueue.php b/src/pocketmine/utils/ReversePriorityQueue.php
index 740f8ee48..59e0e0c4f 100644
--- a/src/pocketmine/utils/ReversePriorityQueue.php
+++ b/src/pocketmine/utils/ReversePriorityQueue.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 class ReversePriorityQueue extends \SplPriorityQueue{
diff --git a/src/pocketmine/utils/ServerException.php b/src/pocketmine/utils/ServerException.php
index b8f5f56e2..e526b29c4 100644
--- a/src/pocketmine/utils/ServerException.php
+++ b/src/pocketmine/utils/ServerException.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 class ServerException extends \RuntimeException{
diff --git a/src/pocketmine/utils/ServerKiller.php b/src/pocketmine/utils/ServerKiller.php
index c6ed2beb3..3bfa5d68a 100644
--- a/src/pocketmine/utils/ServerKiller.php
+++ b/src/pocketmine/utils/ServerKiller.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 use pocketmine\Thread;
diff --git a/src/pocketmine/utils/Terminal.php b/src/pocketmine/utils/Terminal.php
index 4303c4285..3fec7fcb0 100644
--- a/src/pocketmine/utils/Terminal.php
+++ b/src/pocketmine/utils/Terminal.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 abstract class Terminal{
diff --git a/src/pocketmine/utils/TextFormat.php b/src/pocketmine/utils/TextFormat.php
index 55c0c661e..04eaff7e3 100644
--- a/src/pocketmine/utils/TextFormat.php
+++ b/src/pocketmine/utils/TextFormat.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 /**
diff --git a/src/pocketmine/utils/UUID.php b/src/pocketmine/utils/UUID.php
index ebc42688c..0aca65ad8 100644
--- a/src/pocketmine/utils/UUID.php
+++ b/src/pocketmine/utils/UUID.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 class UUID{
diff --git a/src/pocketmine/utils/Utils.php b/src/pocketmine/utils/Utils.php
index 6119a7169..a5cfdde71 100644
--- a/src/pocketmine/utils/Utils.php
+++ b/src/pocketmine/utils/Utils.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Various Utilities used around the code
  */
diff --git a/src/pocketmine/utils/VersionString.php b/src/pocketmine/utils/VersionString.php
index 201ce0e92..3f4b3cb66 100644
--- a/src/pocketmine/utils/VersionString.php
+++ b/src/pocketmine/utils/VersionString.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\utils;
 
 
diff --git a/src/pocketmine/wizard/SetupWizard.php b/src/pocketmine/wizard/SetupWizard.php
index 69604582f..06e4d34f7 100644
--- a/src/pocketmine/wizard/SetupWizard.php
+++ b/src/pocketmine/wizard/SetupWizard.php
@@ -19,6 +19,8 @@
  *
 */
 
+declare(strict_types=1);
+
 /**
  * Set-up wizard used on the first run
  * Can be disabled with --no-wizard