public function saveNBT()
{
$this->namedtag->Items = new Enum("Items", []);
$this->namedtag->Items->setTagType(NBT::TAG_Compound);
for ($index = 0; $index < $this->getSize(); ++$index) {
$this->setItem($index, $this->inventory->getItem($index));
}
}
public function getItem($index)
{
return $index < $this->left->getSize() ? $this->left->getItem($index) : $this->right->getItem($index - $this->right->getSize());
}