AnimatedBlockInventoryTrait.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\inventory;
 
use pocketmine\player\Player;
use pocketmine\world\sound\Sound;
use function count;
 
trait AnimatedBlockInventoryTrait{
    use BlockInventoryTrait;
 
    public function getViewerCount() : int{
        return count($this->getViewers());
    }
 
    abstract public function getViewers() : array;
 
    abstract protected function getOpenSound() : Sound;
 
    abstract protected function getCloseSound() : Sound;
 
    public function onOpen(Player $who) : void{
        parent::onOpen($who);
 
        if($this->holder->isValid() && $this->getViewerCount() === 1){
            //TODO: this crap really shouldn't be managed by the inventory
            $this->animateBlock(true);
            $this->holder->getWorld()->addSound($this->holder->add(0.5, 0.5, 0.5), $this->getOpenSound());
        }
    }
 
    abstract protected function animateBlock(bool $isOpen) : void;
 
    public function onClose(Player $who) : void{
        if($this->holder->isValid() && $this->getViewerCount() === 1){
            //TODO: this crap really shouldn't be managed by the inventory
            $this->animateBlock(false);
            $this->holder->getWorld()->addSound($this->holder->add(0.5, 0.5, 0.5), $this->getCloseSound());
        }
        parent::onClose($who);
    }
}