ItemEnchantmentHandlingTrait.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\item;
 
use pocketmine\item\enchantment\Enchantment;
use pocketmine\item\enchantment\EnchantmentInstance;
use function count;
use function spl_object_id;
 
trait ItemEnchantmentHandlingTrait{
    protected array $enchantments = [];
 
    public function hasEnchantments() : bool{
        return count($this->enchantments) > 0;
    }
 
    public function hasEnchantment(Enchantment $enchantment, int $level = -1) : bool{
        $id = spl_object_id($enchantment);
        return isset($this->enchantments[$id]) && ($level === -1 || $this->enchantments[$id]->getLevel() === $level);
    }
 
    public function getEnchantment(Enchantment $enchantment) : ?EnchantmentInstance{
        return $this->enchantments[spl_object_id($enchantment)] ?? null;
    }
 
    public function removeEnchantment(Enchantment $enchantment, int $level = -1) : self{
        $instance = $this->getEnchantment($enchantment);
        if($instance !== null && ($level === -1 || $instance->getLevel() === $level)){
            unset($this->enchantments[spl_object_id($enchantment)]);
        }
 
        return $this;
    }
 
    public function removeEnchantments() : self{
        $this->enchantments = [];
        return $this;
    }
 
    public function addEnchantment(EnchantmentInstance $enchantment) : self{
        $this->enchantments[spl_object_id($enchantment->getType())] = $enchantment;
        return $this;
    }
 
    public function getEnchantments() : array{
        return $this->enchantments;
    }
 
    public function getEnchantmentLevel(Enchantment $enchantment) : int{
        return ($instance = $this->getEnchantment($enchantment)) !== null ? $instance->getLevel() : 0;
    }
}