network: explicitly specify @return void

src/pocketmine/network/mcpe/protocol/AdventureSettingsPacket.php

@@ -102,6 +102,12 @@ class AdventureSettingsPacket extends DataPacket{
 		return ($this->flags & $flag) !== 0;
 	}
 
+	/**
+	 * @param int  $flag
+	 * @param bool $value
+	 *
+	 * @return void
+	 */
 	public function setFlag(int $flag, bool $value){
 		if($flag & self::BITFLAG_SECOND_SET){
 			$flagSet =& $this->flags2;

src/pocketmine/network/mcpe/protocol/BatchPacket.php

@@ -77,6 +77,8 @@ class BatchPacket extends DataPacket{
 
 	/**
 	 * @param DataPacket $packet
+	 *
+	 * @return void
 	 */
 	public function addPacket(DataPacket $packet){
 		if(!$packet->canBeBatched()){
@@ -107,6 +109,11 @@ class BatchPacket extends DataPacket{
 		return $this->compressionLevel;
 	}
 
+	/**
+	 * @param int $level
+	 *
+	 * @return void
+	 */
 	public function setCompressionLevel(int $level){
 		$this->compressionLevel = $level;
 	}

src/pocketmine/network/mcpe/protocol/CommandOutputPacket.php

@@ -86,6 +86,11 @@ class CommandOutputPacket extends DataPacket{
 		}
 	}
 
+	/**
+	 * @param CommandOutputMessage $message
+	 *
+	 * @return void
+	 */
 	protected function putCommandMessage(CommandOutputMessage $message){
 		$this->putBool($message->isInternal);
 		$this->putString($message->messageId);

src/pocketmine/network/mcpe/protocol/CraftingDataPacket.php

@@ -238,14 +238,29 @@ class CraftingDataPacket extends DataPacket{
 		return $result;
 	}
 
+	/**
+	 * @param ShapelessRecipe $recipe
+	 *
+	 * @return void
+	 */
 	public function addShapelessRecipe(ShapelessRecipe $recipe){
 		$this->entries[] = $recipe;
 	}
 
+	/**
+	 * @param ShapedRecipe $recipe
+	 *
+	 * @return void
+	 */
 	public function addShapedRecipe(ShapedRecipe $recipe){
 		$this->entries[] = $recipe;
 	}
 
+	/**
+	 * @param FurnaceRecipe $recipe
+	 *
+	 * @return void
+	 */
 	public function addFurnaceRecipe(FurnaceRecipe $recipe){
 		$this->entries[] = $recipe;
 	}

src/pocketmine/network/mcpe/protocol/PacketPool.php

@@ -30,6 +30,9 @@ class PacketPool{
 	/** @var \SplFixedArray<DataPacket> */
 	protected static $pool = null;
 
+	/**
+	 * @return void
+	 */
 	public static function init(){
 		static::$pool = new \SplFixedArray(256);
 
@@ -179,6 +182,8 @@ class PacketPool{
 
 	/**
 	 * @param DataPacket $packet
+	 *
+	 * @return void
 	 */
 	public static function registerPacket(DataPacket $packet){
 		static::$pool[$packet->pid()] = clone $packet;

src/pocketmine/network/mcpe/protocol/types/NetworkInventoryAction.php

@@ -115,6 +115,7 @@ class NetworkInventoryAction{
 
 	/**
 	 * @param InventoryTransactionPacket $packet
+	 * @return void
 	 */
 	public function write(InventoryTransactionPacket $packet){
 		$packet->putUnsignedVarInt($this->sourceType);