diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index 19dd1696b..09c293020 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -21,6 +21,7 @@
 
 namespace pocketmine;
 
+use pocketmine\block\Air;
 use pocketmine\block\Block;
 use pocketmine\command\CommandSender;
 use pocketmine\entity\Arrow;
@@ -132,6 +133,7 @@ use pocketmine\tile\Tile;
 use pocketmine\utils\TextFormat;
 use raklib\Binary;
 
+
 /**
  * Main class that handles networking, recovery, and packet sending to the server part
  */
@@ -598,6 +600,10 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 		return $this->sleeping !== null;
 	}
 
+	public function getInAirTicks(){
+		return $this->inAirTicks;
+	}
+
 	protected function switchLevel(Level $targetLevel){
 		$oldLevel = $this->level;
 		if(parent::switchLevel($targetLevel)){
@@ -2066,6 +2072,10 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 							$this->inventory->sendHeldItem($this);
 							break;
 						}
+						$block = $target->getSide($packet->face);
+						if($block->getId() === Block::FIRE){
+							$this->level->setBlock($block, new Air());
+						}
 						$this->lastBreak = microtime(true);
 						break;
 					case PlayerActionPacket::ACTION_ABORT_BREAK:
@@ -3470,9 +3480,10 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 	}
 
 	/**
-	 * @param $chunkX
-	 * @param $chunkZ
-	 * @param $payload
+	 * @param int    $chunkX
+	 * @param int    $chunkZ
+	 * @param string $payload
+	 * @param int    $ordering
 	 *
 	 * @return DataPacket
 	 */
diff --git a/src/pocketmine/PocketMine.php b/src/pocketmine/PocketMine.php
index 92e5d084a..67040f078 100644
--- a/src/pocketmine/PocketMine.php
+++ b/src/pocketmine/PocketMine.php
@@ -75,8 +75,8 @@ namespace pocketmine {
 	const VERSION = "1.6dev";
 	const API_VERSION = "2.0.0";
 	const CODENAME = "[REDACTED]";
-	const MINECRAFT_VERSION = "v0.14.0.7 alpha";
-	const MINECRAFT_VERSION_NETWORK = "0.14.0.7";
+	const MINECRAFT_VERSION = "v0.14.0.0 alpha";
+	const MINECRAFT_VERSION_NETWORK = "0.14.0.0";
 
 	/*
 	 * Startup code. Do not look at it, it may harm you.
diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index f997e19dd..12c83dcea 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -972,6 +972,8 @@ class Server{
 	 * @param bool  $forceUnload
 	 *
 	 * @return bool
+	 *
+	 * @throws \InvalidStateException
 	 */
 	public function unloadLevel(Level $level, $forceUnload = false){
 		if($level === $this->getDefaultLevel() and !$forceUnload){
diff --git a/src/pocketmine/block/DoubleWoodSlab.php b/src/pocketmine/block/DoubleWoodSlab.php
index a28170e39..1fc768cab 100644
--- a/src/pocketmine/block/DoubleWoodSlab.php
+++ b/src/pocketmine/block/DoubleWoodSlab.php
@@ -22,6 +22,7 @@
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
+use pocketmine\item\Tool;
 
 class DoubleWoodSlab extends Solid{
 
diff --git a/src/pocketmine/block/IronTrapdoor.php b/src/pocketmine/block/IronTrapdoor.php
index b23d2a225..c2844d51b 100644
--- a/src/pocketmine/block/IronTrapdoor.php
+++ b/src/pocketmine/block/IronTrapdoor.php
@@ -24,6 +24,7 @@ namespace pocketmine\block;
 use pocketmine\item\Item;
 use pocketmine\item\Tool;
 use pocketmine\math\AxisAlignedBB;
+use pocketmine\level\sound\DoorSound;
 use pocketmine\Player;
 
 class IronTrapdoor extends Transparent{
@@ -153,4 +154,4 @@ class IronTrapdoor extends Transparent{
 	public function getToolType(){
 		return Tool::TYPE_PICKAXE;
 	}
-}
\ No newline at end of file
+}
diff --git a/src/pocketmine/block/TallGrass.php b/src/pocketmine/block/TallGrass.php
index bce7fef36..c912a0787 100644
--- a/src/pocketmine/block/TallGrass.php
+++ b/src/pocketmine/block/TallGrass.php
@@ -73,7 +73,9 @@ class TallGrass extends Flowable{
 
 	public function getDrops(Item $item){
 		if(mt_rand(0, 15) === 0){
-			return [Item::WHEAT_SEEDS, 0, 1];
+			return [
+				[Item::WHEAT_SEEDS, 0, 1]
+			];
 		}
 
 		return [];
diff --git a/src/pocketmine/command/defaults/TeleportCommand.php b/src/pocketmine/command/defaults/TeleportCommand.php
index c599f9590..b7e21e7ef 100644
--- a/src/pocketmine/command/defaults/TeleportCommand.php
+++ b/src/pocketmine/command/defaults/TeleportCommand.php
@@ -44,6 +44,7 @@ class TeleportCommand extends VanillaCommand{
 			return true;
 		}
 
+		$args = array_filter($args);
 		if(count($args) < 1 or count($args) > 6){
 			$sender->sendMessage(new TranslationContainer("commands.generic.usage", [$this->usageMessage]));
 
diff --git a/src/pocketmine/entity/Entity.php b/src/pocketmine/entity/Entity.php
index 7aa462dc1..eab6b1e49 100644
--- a/src/pocketmine/entity/Entity.php
+++ b/src/pocketmine/entity/Entity.php
@@ -83,7 +83,7 @@ abstract class Entity extends Location implements Metadatable{
 	const DATA_SILENT = 4;
 	const DATA_POTION_COLOR = 7;
 	const DATA_POTION_AMBIENT = 8;
-    const DATA_NO_AI = 15;
+	const DATA_NO_AI = 15;
 
 
 	const DATA_FLAG_ONFIRE = 0;
@@ -567,7 +567,7 @@ abstract class Entity extends Location implements Metadatable{
 
 	/**
 	 * @param Player[]|Player $player
-	 * @param array $data Properly formatted entity data, defaults to everything
+	 * @param array           $data Properly formatted entity data, defaults to everything
 	 */
 	public function sendData($player, array $data = null){
 		$pk = new SetEntityDataPacket();
@@ -598,23 +598,24 @@ abstract class Entity extends Location implements Metadatable{
 	 * @param EntityDamageEvent $source
 	 *
 	 */
-    public function attack($damage, EntityDamageEvent $source){
-        if($this->hasEffect(Effect::FIRE_RESISTANCE)
-            and $source->getCause() === EntityDamageEvent::CAUSE_FIRE
-            and $source->getCause() === EntityDamageEvent::CAUSE_FIRE_TICK
-            and $source->getCause() === EntityDamageEvent::CAUSE_LAVA){
-            $source->setCancelled();
-        }
+	public function attack($damage, EntityDamageEvent $source){
+		if($this->hasEffect(Effect::FIRE_RESISTANCE)
+			and $source->getCause() === EntityDamageEvent::CAUSE_FIRE
+			and $source->getCause() === EntityDamageEvent::CAUSE_FIRE_TICK
+			and $source->getCause() === EntityDamageEvent::CAUSE_LAVA
+		){
+			$source->setCancelled();
+		}
 
-        $this->server->getPluginManager()->callEvent($source);
-        if($source->isCancelled()){
-            return;
-        }
+		$this->server->getPluginManager()->callEvent($source);
+		if($source->isCancelled()){
+			return;
+		}
 
-        $this->setLastDamageCause($source);
+		$this->setLastDamageCause($source);
 
-        $this->setHealth($this->getHealth() - $source->getFinalDamage());
-    }
+		$this->setHealth($this->getHealth() - $source->getFinalDamage());
+	}
 
 	/**
 	 * @param float                   $amount
@@ -622,13 +623,13 @@ abstract class Entity extends Location implements Metadatable{
 	 *
 	 */
 	public function heal($amount, EntityRegainHealthEvent $source){
-        $this->server->getPluginManager()->callEvent($source);
-        if($source->isCancelled()){
-            return;
-        }
+		$this->server->getPluginManager()->callEvent($source);
+		if($source->isCancelled()){
+			return;
+		}
 
-        $this->setHealth($this->getHealth() + $source->getAmount());
-    }
+		$this->setHealth($this->getHealth() + $source->getAmount());
+	}
 
 	/**
 	 * @return int
@@ -781,7 +782,7 @@ abstract class Entity extends Location implements Metadatable{
 			}
 
 			if($direction === 5){
-				$this->motionY = $force;
+				$this->motionZ = $force;
 
 				return true;
 			}
@@ -1555,7 +1556,7 @@ abstract class Entity extends Location implements Metadatable{
 	}
 
 	/**
-	 * @param int  $propertyId;
+	 * @param int  $propertyId
 	 * @param int  $id
 	 * @param bool $value
 	 */
diff --git a/src/pocketmine/entity/Item.php b/src/pocketmine/entity/Item.php
index 76269d569..5493ea6e5 100644
--- a/src/pocketmine/entity/Item.php
+++ b/src/pocketmine/entity/Item.php
@@ -72,12 +72,14 @@ class Item extends Entity{
 			$this->thrower = $this->namedtag["Thrower"];
 		}
 
-		assert($this->namedtag->Item instanceof CompoundTag);
 
 		if(!isset($this->namedtag->Item)){
 			$this->close();
 			return;
 		}
+
+		assert($this->namedtag->Item instanceof CompoundTag);
+
 		$this->item = NBT::getItemHelper($this->namedtag->Item);
 
 
diff --git a/src/pocketmine/event/inventory/CraftItemEvent.php b/src/pocketmine/event/inventory/CraftItemEvent.php
index b5c466bda..a069c3dfa 100644
--- a/src/pocketmine/event/inventory/CraftItemEvent.php
+++ b/src/pocketmine/event/inventory/CraftItemEvent.php
@@ -69,7 +69,7 @@ class CraftItemEvent extends Event implements Cancellable{
 	}
 
 	/**
-	 * @return \pocktemine\Player
+	 * @return \pocketmine\Player
 	 */
 	public function getPlayer(){
 		return $this->player;
diff --git a/src/pocketmine/event/player/PlayerBucketEvent.php b/src/pocketmine/event/player/PlayerBucketEvent.php
index 48d67db21..f0490b14f 100644
--- a/src/pocketmine/event/player/PlayerBucketEvent.php
+++ b/src/pocketmine/event/player/PlayerBucketEvent.php
@@ -83,4 +83,11 @@ abstract class PlayerBucketEvent extends PlayerEvent implements Cancellable{
 	public function getBlockClicked(){
 		return $this->blockClicked;
 	}
-}
\ No newline at end of file
+
+	/**
+	 * @return int
+	 */
+	public function getBlockFace(){
+		return $this->blockFace;
+	}
+}
diff --git a/src/pocketmine/event/player/PlayerDeathEvent.php b/src/pocketmine/event/player/PlayerDeathEvent.php
index f705b7ae7..16bbe33a5 100644
--- a/src/pocketmine/event/player/PlayerDeathEvent.php
+++ b/src/pocketmine/event/player/PlayerDeathEvent.php
@@ -34,8 +34,8 @@ class PlayerDeathEvent extends EntityDeathEvent{
 	private $keepInventory = false;
 
 	/**
-	 * @param Player $entity
-	 * @param Item[] $drops
+	 * @param Player               $entity
+	 * @param Item[]               $drops
 	 * @param string|TextContainer $deathMessage
 	 */
 	public function __construct(Player $entity, array $drops, $deathMessage){
@@ -50,6 +50,13 @@ class PlayerDeathEvent extends EntityDeathEvent{
 		return $this->entity;
 	}
 
+	/**
+	 * @return Player
+	 */
+	public function getPlayer(){
+		return $this->entity;
+	}
+
 	/**
 	 * @return TextContainer|string
 	 */
diff --git a/src/pocketmine/inventory/CraftingManager.php b/src/pocketmine/inventory/CraftingManager.php
index 5cf0b6763..6ff6f1e0b 100644
--- a/src/pocketmine/inventory/CraftingManager.php
+++ b/src/pocketmine/inventory/CraftingManager.php
@@ -22,21 +22,11 @@
 namespace pocketmine\inventory;
 
 
-use pocketmine\block\Planks;
-use pocketmine\block\Quartz;
-use pocketmine\block\Sandstone;
-use pocketmine\block\Slab;
-use pocketmine\block\Fence;
-use pocketmine\block\Stone;
-use pocketmine\block\StoneBricks;
-use pocketmine\block\StoneWall;
-use pocketmine\block\Wood;
-use pocketmine\block\Wood2;
 use pocketmine\item\Item;
-use pocketmine\utils\UUID;
 use pocketmine\Server;
-use pocketmine\utils\MainLogger;
 use pocketmine\utils\Config;
+use pocketmine\utils\MainLogger;
+use pocketmine\utils\UUID;
 
 class CraftingManager{
 
@@ -55,7 +45,7 @@ class CraftingManager{
 		// load recipes from src/pocketmine/recipes.json
 		$recipes = new Config(Server::getInstance()->getFilePath() . "src/pocketmine/resources/recipes.json", Config::JSON, []);
 
-		MainLogger::getLogger()->Info("Loading recipes...");
+		MainLogger::getLogger()->info("Loading recipes...");
 		foreach($recipes->getAll() as $recipe){
 			switch($recipe["Type"]){
 			case 0:
diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index cb0f228c1..166850df4 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -2453,6 +2453,8 @@ class Level implements ChunkManager, Metadatable{
 	 * @param bool $generate
 	 *
 	 * @return bool
+	 *
+	 * @throws \InvalidStateException
 	 */
 	public function loadChunk(int $x, int $z, bool $generate = true) : bool{
 		if(isset($this->chunks[$index = Level::chunkHash($x, $z)])){
@@ -2599,7 +2601,7 @@ class Level implements ChunkManager, Metadatable{
 	 * @return bool|Position
 	 */
 	public function getSafeSpawn($spawn = null){
-		if(!($spawn instanceof Vector3) or $spawn->y <= 0){
+		if(!($spawn instanceof Vector3) or $spawn->y < 1){
 			$spawn = $this->getSpawnLocation();
 		}
 		if($spawn instanceof Vector3){
diff --git a/src/pocketmine/level/format/generic/BaseLevelProvider.php b/src/pocketmine/level/format/generic/BaseLevelProvider.php
index dd5d2c11b..5c7bba013 100644
--- a/src/pocketmine/level/format/generic/BaseLevelProvider.php
+++ b/src/pocketmine/level/format/generic/BaseLevelProvider.php
@@ -50,6 +50,7 @@ abstract class BaseLevelProvider implements LevelProvider{
 		$levelData = $nbt->getData();
 		if($levelData->Data instanceof CompoundTag){
 			$this->levelData = $levelData->Data;
+			assert(is_int($this->levelData["RandomSeed"]));
 		}else{
 			throw new LevelException("Invalid level.dat");
 		}
@@ -126,4 +127,4 @@ abstract class BaseLevelProvider implements LevelProvider{
 	}
 
 
-}
\ No newline at end of file
+}
diff --git a/src/pocketmine/level/format/mcregion/McRegion.php b/src/pocketmine/level/format/mcregion/McRegion.php
index 9d00c0b16..af7e6e418 100644
--- a/src/pocketmine/level/format/mcregion/McRegion.php
+++ b/src/pocketmine/level/format/mcregion/McRegion.php
@@ -92,7 +92,7 @@ class McRegion extends BaseLevelProvider{
 			"version" => new IntTag("version", 19133),
 			"DayTime" => new IntTag("DayTime", 0),
 			"LastPlayed" => new LongTag("LastPlayed", microtime(true) * 1000),
-			"RandomSeed" => new LongTag("RandomSeed", $seed),
+			"RandomSeed" => new LongTag("RandomSeed", (int) $seed),
 			"SizeOnDisk" => new LongTag("SizeOnDisk", 0),
 			"Time" => new LongTag("Time", 0),
 			"generatorName" => new StringTag("generatorName", Generator::getGeneratorName($generator)),
@@ -324,4 +324,4 @@ class McRegion extends BaseLevelProvider{
 		}
 		$this->level = null;
 	}
-}
\ No newline at end of file
+}
diff --git a/src/pocketmine/level/generator/Generator.php b/src/pocketmine/level/generator/Generator.php
index 007c82751..2a68ea10a 100644
--- a/src/pocketmine/level/generator/Generator.php
+++ b/src/pocketmine/level/generator/Generator.php
@@ -81,6 +81,8 @@ abstract class Generator{
 	 * @param int   $z
 	 *
 	 * @return \SplFixedArray
+	 *
+	 * @throws \InvalidArgumentCountException
 	 */
 	public static function getFastNoise1D(Noise $noise, $xSize, $samplingRate, $x, $y, $z){
 		if($samplingRate === 0){
@@ -116,6 +118,9 @@ abstract class Generator{
 	 * @param int   $z
 	 *
 	 * @return \SplFixedArray
+	 *
+	 * @throws \InvalidArgumentException
+	 * @throws \InvalidArgumentCountException
 	 */
 	public static function getFastNoise2D(Noise $noise, $xSize, $zSize, $samplingRate, $x, $y, $z){
 		assert($samplingRate !== 0, new \InvalidArgumentException("samplingRate cannot be 0"));
@@ -166,6 +171,9 @@ abstract class Generator{
 	 * @param int   $z
 	 *
 	 * @return \SplFixedArray
+	 *
+	 * @throws \InvalidArgumentException
+	 * @throws \InvalidArgumentCountException
 	 */
 	public static function getFastNoise3D(Noise $noise, $xSize, $ySize, $zSize, $xSamplingRate, $ySamplingRate, $zSamplingRate, $x, $y, $z){
 
diff --git a/src/pocketmine/network/CompressBatchedTask.php b/src/pocketmine/network/CompressBatchedTask.php
index e2e68ca7b..c8fdb426b 100644
--- a/src/pocketmine/network/CompressBatchedTask.php
+++ b/src/pocketmine/network/CompressBatchedTask.php
@@ -29,7 +29,7 @@ class CompressBatchedTask extends AsyncTask{
 	public $level = 7;
 	public $data;
 	public $final;
-	public $targets = [];
+	public $targets;
 
 	public function __construct($data, array $targets, $level = 7){
 		$this->data = $data;
@@ -47,6 +47,6 @@ class CompressBatchedTask extends AsyncTask{
 	}
 
 	public function onCompletion(Server $server){
-		$server->broadcastPacketsCallback($this->final, $this->targets);
+		$server->broadcastPacketsCallback($this->final, (array) $this->targets);
 	}
-}
\ No newline at end of file
+}
diff --git a/src/pocketmine/network/protocol/ContainerSetSlotPacket.php b/src/pocketmine/network/protocol/ContainerSetSlotPacket.php
index 2cf8bfca0..bc385f34c 100644
--- a/src/pocketmine/network/protocol/ContainerSetSlotPacket.php
+++ b/src/pocketmine/network/protocol/ContainerSetSlotPacket.php
@@ -49,4 +49,4 @@ class ContainerSetSlotPacket extends DataPacket{
 		$this->putSlot($this->item);
 	}
 
-}
\ No newline at end of file
+}
diff --git a/src/pocketmine/plugin/Plugin.php b/src/pocketmine/plugin/Plugin.php
index d01083536..ece3905d1 100644
--- a/src/pocketmine/plugin/Plugin.php
+++ b/src/pocketmine/plugin/Plugin.php
@@ -54,7 +54,8 @@ interface Plugin extends CommandExecutor{
 	public function isDisabled();
 
 	/**
-	 * Gets the plugin's data folder to save files and configuration
+	 * Gets the plugin's data folder to save files and configuration.
+	 * This directory name has a trailing slash.
 	 */
 	public function getDataFolder();
 
@@ -111,4 +112,4 @@ interface Plugin extends CommandExecutor{
 	 */
 	public function getPluginLoader();
 
-}
\ No newline at end of file
+}
diff --git a/src/pocketmine/plugin/PluginBase.php b/src/pocketmine/plugin/PluginBase.php
index a928fe840..a2e79bde3 100644
--- a/src/pocketmine/plugin/PluginBase.php
+++ b/src/pocketmine/plugin/PluginBase.php
@@ -251,8 +251,9 @@ abstract class PluginBase implements Plugin{
 
 	public function saveDefaultConfig(){
 		if(!file_exists($this->configFile)){
-			$this->saveResource("config.yml", false);
+			return $this->saveResource("config.yml", false);
 		}
+		return false;
 	}
 
 	public function reloadConfig(){