PocketMine-MP/src/pocketmine/block/Trapdoor.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/
 * 
 *
*/

namespace pocketmine\block;

use pocketmine\item\Item;
use pocketmine\math\AxisAlignedBB;
use pocketmine\Player;

class Trapdoor extends Transparent{

    protected $id = self::TRAPDOOR;

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

    public function getName(){
        return "Trapdoor";
    }

    public function getHardness(){
        return 15;
    }

    public function canBeActivated(){
        return true;
    }

	protected function recalculateBoundingBox(){

		$damage = $this->getDamage();

		$f = 0.1875;

		if(($damage & 0x08) > 0){
			$bb = new AxisAlignedBB(
				$this->x,
				$this->y + 1 - $f,
				$this->z,
				$this->x + 1,
				$this->y + 1,
				$this->z + 1
			);
		}else{
			$bb = new AxisAlignedBB(
				$this->x,
				$this->y,
				$this->z,
				$this->x + 1,
				$this->y + $f,
				$this->z + 1
			);
		}

		if(($damage & 0x04) > 0){
			if(($damage & 0x03) === 0){
				$bb->setBounds(
					$this->x,
					$this->y,
					$this->z + 1 - $f,
					$this->x + 1,
					$this->y + 1,
					$this->z + 1
				);
			}elseif(($damage & 0x03) === 1){
				$bb->setBounds(
					$this->x,
					$this->y,
					$this->z,
					$this->x + 1,
					$this->y + 1,
					$this->z + $f
				);
			}if(($damage & 0x03) === 2){
				$bb->setBounds(
					$this->x + 1 - $f,
					$this->y,
					$this->z,
					$this->x + 1,
					$this->y + 1,
					$this->z + 1
				);
			}if(($damage & 0x03) === 3){
				$bb->setBounds(
					$this->x,
					$this->y,
					$this->z,
					$this->x + $f,
					$this->y + 1,
					$this->z + 1
				);
			}
		}

		return $bb;
	}

	public function place(Item $item, Block $block, Block $target, $face, $fx, $fy, $fz, Player $player = null){
		if(($target->isTransparent() === false or $target->getId() === self::SLAB) and $face !== 0 and $face !== 1){
			$faces = [
				2 => 0,
				3 => 1,
				4 => 2,
				5 => 3,
			];
			$this->meta = $faces[$face] & 0x03;
			if($fy > 0.5){
				$this->meta |= 0x08;
			}
			$this->getLevel()->setBlock($block, $this, true, true);

			return true;
		}

		return false;
	}

	public function getDrops(Item $item){
		return [
			[$this->id, 0, 1],
		];
	}

	public function onActivate(Item $item, Player $player = null){
		$this->meta ^= 0x04;
		$this->getLevel()->setBlock($this, $this, true);

		return true;
	}
}