Chain.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\block\utils\PillarRotationTrait;
use pocketmine\block\utils\SupportType;
use pocketmine\math\Axis;
use pocketmine\math\AxisAlignedBB;
use pocketmine\math\Facing;
 
final class Chain extends Transparent{
    use PillarRotationTrait;
 
    public function getSupportType(int $facing) : SupportType{
        return $this->axis === Axis::Y && Facing::axis($facing) === Axis::Y ? SupportType::CENTER : SupportType::NONE;
    }
 
    protected function recalculateCollisionBoxes() : array{
        $bb = AxisAlignedBB::one();
        foreach([Axis::Y, Axis::Z, Axis::X] as $axis){
            if($axis !== $this->axis){
                $bb->squash($axis, 13 / 32);
            }
        }
        return [$bb];
    }
}