Tutorial How to close a Tile (automatically) when the player done doing FakeChest things

There was a problem with this thread: Remove tile

PHP:

/** @var InventoryCloseEvent $event */
$tile = $event->getInventory()->getHolder();
$players = $event->getInventory()->getViewers();
$block = Block::get(Block::AIR);
$block->x = $tile->x;
$block->y = $tile->y;
$block->z = $tile->z;
$block->level = $tile->getLevel();
$tile->getLevel()->sendBlocks($players, [$block]);
$tile->close();

If you look closely to the Player.php->handleContainerClose(), you see that the event called "InventoryCloseEvent" is triggered at these lines:

PHP:

        if(isset($this->windowIndex[$packet->windowId])){
            $this->server->getPluginManager()->callEvent(new InventoryCloseEvent($this->windowIndex[$packet->windowId], $this));
            $this->removeWindow($this->windowIndex[$packet->windowId]);
            return true;


So, if you try to use $tile->close() like the code in the topic above, this happen:

PHP:

ErrorException: "Undefined offset: 3" (EXCEPTION) in "src/pocketmine/Player" at line 2826

Note: the number "3" and the line "2826" may vary. Basically this is the line 2826 and its neighbors:

Conclusion: The window had been removed. Where?
Chest.php, an inheritance of Tile.php:

PHP:

public function close() : void{
        if($this->closed === false){
            $this->inventory->removeAllViewers(true);

Which triggers:

As you can see, the window had been removed in the close() function, which returns no error. But the code continues at the line 2826 on Player.php, causing the code to be broken and cancel itself. Although this error does not affect the functionality of the plugin.

So, what do we do?
I came up with the idea of removing the player from the viewers of the ChestInventory. Let me know if you have a better way to workaround this.

PHP:

//$event instanceof InventoryCloseEvent
$tile->getInventory()->onClose($event->getPlayer());
$tile->close();

Which, in the end, triggers the unset function on BaseInventory.php:

PHP:

public function onClose(Player $who) : void{
    unset($this->viewers[spl_object_hash($who)]);
}

Done. Good luck coding.

 

$tile->getLevel()->sendBlocks([$players], [$block]); /** @param player[], block[]*/

 

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