Add Releasable interface (#3664)

closes #3301

src/item/Bow.php

@@ -34,7 +34,7 @@ use pocketmine\world\sound\BowShootSound;
 use function intdiv;
 use function min;
 
-class Bow extends Tool{
+class Bow extends Tool implements Releasable{
 
 	public function getFuelTime() : int{
 		return 200;

src/item/ConsumableItem.php

@@ -28,7 +28,7 @@ use pocketmine\entity\Consumable;
 /**
  * Interface implemented by objects that can be consumed by mobs.
  */
-interface ConsumableItem extends Consumable{
+interface ConsumableItem extends Consumable, Releasable{
 
 	/**
 	 * Returns the leftover that this Consumable produces when it is consumed. For Items, this is usually air, but could

src/item/Releasable.php

@@ -0,0 +1,31 @@
+<?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;
+
+/**
+ * Interface implemented by objects that can be used.
+ */
+interface Releasable{
+
+}

src/player/Player.php

@@ -78,6 +78,7 @@ use pocketmine\item\enchantment\EnchantmentInstance;
 use pocketmine\item\enchantment\MeleeWeaponEnchantment;
 use pocketmine\item\Item;
 use pocketmine\item\ItemUseResult;
+use pocketmine\item\Releasable;
 use pocketmine\lang\Language;
 use pocketmine\lang\TranslationContainer;
 use pocketmine\math\Vector3;
@@ -1476,8 +1477,7 @@ class Player extends Human implements CommandSender, ChunkLoader, ChunkListener,
 			$this->inventory->setItemInHand($item);
 		}
 
-		//TODO: check if item has a release action - if it doesn't, this shouldn't be set
+		$this->setUsingItem($item instanceof Releasable);
-		$this->setUsingItem(true);
 
 		return true;
 	}