PocketMine-MP/src/pocketmine/block/ItemFrame.php

<?php

/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
*/

declare(strict_types=1);

namespace pocketmine\block;

use pocketmine\item\Item;
use pocketmine\level\Level;
use pocketmine\math\Vector3;
use pocketmine\Player;
use pocketmine\tile\ItemFrame as TileItemFrame;
use pocketmine\tile\Tile;

class ItemFrame extends Flowable{
	protected $id = Block::ITEM_FRAME_BLOCK;

	protected $itemId = Item::ITEM_FRAME;

	public function __construct(int $meta = 0){
		$this->meta = $meta;
	}

	public function getName() : string{
		return "Item Frame";
	}

	public function onActivate(Item $item, Player $player = null) : bool{
		$tile = $this->level->getTile($this);
		if(!($tile instanceof TileItemFrame)){
			$tile = Tile::createTile(Tile::ITEM_FRAME, $this->getLevel(), TileItemFrame::createNBT($this));
		}

		if($tile->hasItem()){
			$tile->setItemRotation(($tile->getItemRotation() + 1) % 8);
		}elseif(!$item->isNull()){
			$tile->setItem($item->pop());
		}

		return true;
	}

	public function onUpdate(int $type){
		if($type === Level::BLOCK_UPDATE_NORMAL){
			$sides = [
				0 => Vector3::SIDE_WEST,
				1 => Vector3::SIDE_EAST,
				2 => Vector3::SIDE_NORTH,
				3 => Vector3::SIDE_SOUTH
			];
			if(!$this->getSide($sides[$this->meta])->isSolid()){
				$this->level->useBreakOn($this);
				return Level::BLOCK_UPDATE_NORMAL;
			}
		}
		return false;
	}

	public function place(Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, Player $player = null) : bool{
		if($face === Vector3::SIDE_DOWN or $face === Vector3::SIDE_UP or !$blockClicked->isSolid()){
			return false;
		}

		$faces = [
			Vector3::SIDE_NORTH => 3,
			Vector3::SIDE_SOUTH => 2,
			Vector3::SIDE_WEST => 1,
			Vector3::SIDE_EAST => 0
		];

		$this->meta = $faces[$face];
		$this->level->setBlock($blockReplace, $this, true, true);

		Tile::createTile(Tile::ITEM_FRAME, $this->getLevel(), TileItemFrame::createNBT($this, $face, $item, $player));

		return true;

	}

	public function getVariantBitmask() : int{
		return 0;
	}

	public function getDropsForCompatibleTool(Item $item) : array{
		$drops = parent::getDropsForCompatibleTool($item);

		$tile = $this->level->getTile($this);
		if($tile instanceof TileItemFrame){
			$tileItem = $tile->getItem();
			if(lcg_value() <= $tile->getItemDropChance() and !$tileItem->isNull()){
				$drops[] = $tileItem;
			}
		}

		return $drops;
	}
}