use pocketmine\network\mcpe\protocol\serializer\PacketSerializer; class SetDifficultyPacket extends DataPacket implements ClientboundPacket, ServerboundPacket{ public const NETWORK_ID = ProtocolInfo::SET_DIFFICULTY_PACKET; /** @var int */ public $difficulty; public static function create(int $difficulty) : self{ $result = new self; $result->difficulty = $difficulty; return $result; } protected function decodePayload(PacketSerializer $in) : void{ $this->difficulty = $in->getUnsignedVarInt(); } protected function encodePayload(PacketSerializer $out) : void{ $out->putUnsignedVarInt($this->difficulty); } public function handle(PacketHandlerInterface $handler) : bool{ return $handler->handleSetDifficulty($this); } }