src/crafting/ShapelessRecipe.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\crafting;
 
use pocketmine\item\Item;
use pocketmine\utils\Utils;
use function count;
 
class ShapelessRecipe implements CraftingRecipe{
    private array $ingredients = [];
    private array $results;
    private ShapelessRecipeType $type;
 
    public function __construct(array $ingredients, array $results, ShapelessRecipeType $type){
        $this->type = $type;
 
        if(count($ingredients) > 9){
            throw new \InvalidArgumentException("Shapeless recipes cannot have more than 9 ingredients");
        }
        $this->ingredients = $ingredients;
        $this->results = Utils::cloneObjectArray($results);
    }
 
    public function getResults() : array{
        return Utils::cloneObjectArray($this->results);
    }
 
    public function getResultsFor(CraftingGrid $grid) : array{
        return $this->getResults();
    }
 
    public function getType() : ShapelessRecipeType{
        return $this->type;
    }
 
    public function getIngredientList() : array{
        return $this->ingredients;
    }
 
    public function getIngredientCount() : int{
        return count($this->ingredients);
    }
 
    public function matchesCraftingGrid(CraftingGrid $grid) : bool{
        //don't pack the ingredients - shapeless recipes require that each ingredient be in a separate slot
        $input = $grid->getContents();
 
        foreach($this->ingredients as $ingredient){
            foreach($input as $j => $haveItem){
                if($ingredient->accepts($haveItem)){
                    unset($input[$j]);
                    continue 2;
                }
            }
 
            return false; //failed to match the needed item to a given item
        }
 
        return count($input) === 0; //crafting grid should be empty apart from the given ingredient stacks
    }
}