public function clear($index)
{
if (isset($this->slots[$index])) {
$item = Item::get(Item::AIR, \null, 0);
$old = $this->slots[$index];
$holder = $this->getHolder();
if ($holder instanceof Entity) {
Server::getInstance()->getPluginManager()->callEvent($ev = new EntityInventoryChangeEvent($holder, $old, $item, $index));
if ($ev->isCancelled()) {
$this->sendSlot($index, $this->getViewers());
return \false;
}
$item = $ev->getNewItem();
}
if ($item->getId() !== Item::AIR) {
$this->slots[$index] = clone $item;
} else {
unset($this->slots[$index]);
}
$this->onSlotChange($index, $old);
}
return \true;
}