pocketmine\inventory\DoubleChestInventory::onOpen PHP Метод

    public function onOpen(Player $who)
    {
        parent::onOpen($who);
        if (count($this->getViewers()) === 1) {
            $pk = new BlockEventPacket();
            $pk->x = $this->right->getHolder()->getX();
            $pk->y = $this->right->getHolder()->getY();
            $pk->z = $this->right->getHolder()->getZ();
            $pk->case1 = 1;
            $pk->case2 = 2;
            if (($level = $this->right->getHolder()->getLevel()) instanceof Level) {
                $level->addChunkPacket($this->right->getHolder()->getX() >> 4, $this->right->getHolder()->getZ() >> 4, $pk);
            }
        }
    }