Implemented Transactions

src/pocketmine/inventory/ShapedRecipe.php

@@ -0,0 +1,101 @@
+<?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/
+ *
+ *
+*/
+
+namespace pocketmine\inventory;
+
+use pocketmine\item\Item;
+
+class ShapedRecipe implements Recipe{
+	/** @var Item */
+	private $output;
+
+	/** @var string[] */
+	private $rows = [];
+
+	/** @var Item[] */
+	private $ingredients = [];
+
+	/**
+	 * @param Item     $result
+	 * @param string[] $shape
+	 *
+	 * @throws \Exception
+	 */
+	public function __construct(Item $result, array $shape = []){
+		if(count($shape) === 0){
+			throw new \Exception("Must provide a shape");
+		}
+		if(count($shape) > 3){
+			throw new \Exception("Crafting recipes should  be 1, 2, 3 rows, not ".count($shape));
+		}
+		foreach($shape as $row){
+			if(strlen($row) === 0 or strlen($row) > 3){
+				throw new \Exception("Crafting rows should  be 1, 2, 3 characters, not ".count($row));
+			}
+			$this->rows[] = $row;
+			$len = strlen($row);
+			for($i = 0; $i < $len; ++$i){
+				$this->ingredients[$row{$i}] = null;
+			}
+		}
+
+		$this->output = clone $result;
+	}
+
+	/**
+	 * @param string $key
+	 * @param Item   $item
+	 *
+	 * @return $this
+	 * @throws \Exception
+	 */
+	public function setIngredient($key, Item $item){
+		if(!isset($this->ingredients[$key])){
+			throw new \Exception("Symbol does not appear in the shape: ". $key);
+		}
+
+		$this->ingredients[$key] = $item;
+
+		return $this;
+	}
+
+	/**
+	 * @return Item[]
+	 */
+	public function getIngredientMap(){
+		$ingredients = [];
+		foreach($this->ingredients as $key => $ingredient){
+			if($ingredient instanceof Item){
+				$ingredients[$key] = clone $ingredient;
+			}else{
+				$ingredients[$key] = $ingredient;
+			}
+		}
+		return $ingredients;
+	}
+
+	/**
+	 * @return string[]
+	 */
+	public function getShape(){
+		return $this->rows;
+	}
+}