Ядро Minecraft PE

}elseif($packet::$ID > 0x00 and $packet::$ID < 0x80){ //Not Data packet :)
            $packet->decode();
            if($packet instanceof OPEN_CONNECTION_REQUEST_1){
                $packet->protocol;
                $pk = new OPEN_CONNECTION_REPLY_1();
                $pk->mtuSize = $packet->mtuSize;
                $pk->serverID = $this->sessionManager->getID();
                $this->sendPacket($pk);
                $this->state = self::STATE_CONNECTING_1;
            }elseif($this->state === self::STATE_CONNECTING_1 and $packet instanceof OPEN_CONNECTION_REQUEST_2){
                $this->id = $packet->clientID;
                if($packet->serverPort === $this->sessionManager->getPort() or !$this->sessionManager->portChecking){
                    $this->mtuSize = min(abs($packet->mtuSize), 1464);
                    $pk = new OPEN_CONNECTION_REPLY_2();
                    $pk->mtuSize = $this->mtuSize;
                    $pk->serverID = $this->sessionManager->getID();
                    $pk->clientAddress = $this->address;
                    $pk->clientPort = $this->port;
                    $this->sendPacket($pk);
                    $this->state = self::STATE_CONNECTING_2;
                }
            }
        }
    }