use pocketmine\network\mcpe\NetworkSession; class SetHealthPacket extends DataPacket{ const NETWORK_ID = ProtocolInfo::SET_HEALTH_PACKET; /** @var int */ public $health; protected function decodePayload(){ $this->health = $this->getVarInt(); } protected function encodePayload(){ $this->putVarInt($this->health); } public function handle(NetworkSession $session) : bool{ return $session->handleSetHealth($this); } }