<?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\math\AxisAlignedBB;
use pocketmine\math\Vector3;

abstract class Fence extends Transparent{

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

	protected function recalculateBoundingBox() : ?AxisAlignedBB{
		$width = 0.375;

		return new AxisAlignedBB(
			$this->x + ($this->canConnect($this->getSide(Vector3::SIDE_WEST)) ? 0 : $width),
			$this->y,
			$this->z + ($this->canConnect($this->getSide(Vector3::SIDE_NORTH)) ? 0 : $width),
			$this->x + 1 - ($this->canConnect($this->getSide(Vector3::SIDE_EAST)) ? 0 : $width),
			$this->y + 1.5,
			$this->z + 1 - ($this->canConnect($this->getSide(Vector3::SIDE_SOUTH)) ? 0 : $width)
		);
	}

	public function canConnect(Block $block){
		return $block instanceof static or $block instanceof FenceGate or ($block->isSolid() and !$block->isTransparent());
	}

}