Fix some strict type violations reported by PhpStorm (strict types <3)

src/pocketmine/Player.php

@@ -1808,7 +1808,7 @@ 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] = $this->level->getSpawnLocation()->x;
@@ -1844,7 +1844,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 	protected function completeLoginSequence(){
 		parent::__construct($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);
 		}
 

src/pocketmine/Server.php

@@ -42,6 +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;
@@ -1165,7 +1166,7 @@ class Server{
 			return (string) $v[$variable];
 		}
 
-		return $this->properties->exists($variable) ? $this->properties->get($variable) : $defaultValue;
+		return $this->properties->exists($variable) ? (string) $this->properties->get($variable) : $defaultValue;
 	}
 
 	/**
@@ -1654,8 +1655,8 @@ class Server{
 	}
 
 	/**
-	 * @param TextContainer|string   $message
-	 * @param Player[] $recipients
+	 * @param TextContainer|string $message
+	 * @param Player[]             $recipients
 	 *
 	 * @return int
 	 */

src/pocketmine/entity/Human.php

@@ -64,7 +64,7 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 	public $eyeHeight = 1.62;
 
 	protected $skinId;
-	protected $skin = null;
+	protected $skin = "";
 
 	protected $foodTickTimer = 0;
 
@@ -72,7 +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");
 		}
 
@@ -250,7 +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;
 	}
 
@@ -319,19 +319,19 @@ class Human extends Creature implements ProjectileSource, InventoryHolder{
 		if(!isset($this->namedtag->foodLevel) or !($this->namedtag->foodLevel instanceof IntTag)){
 			$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)){
@@ -343,7 +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)){

src/pocketmine/entity/Projectile.php

@@ -74,7 +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){

src/pocketmine/item/Fish.php

@@ -51,7 +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;
 	}

src/pocketmine/level/format/io/leveldb/LevelDB.php

@@ -231,7 +231,7 @@ class LevelDB extends BaseLevelProvider{
 	}
 
 	public function getGenerator() : string{
-		return $this->levelData["generatorName"];
+		return (string) $this->levelData["generatorName"];
 	}
 
 	public function getGeneratorOptions() : array{