Duct tape for inventory transactions, removed ContainerSetSlotPacket

src/pocketmine/inventory/PlayerCursorInventory.php

@@ -0,0 +1,91 @@
+<?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\inventory;
+
+use pocketmine\network\mcpe\protocol\InventorySlotPacket;
+use pocketmine\network\mcpe\protocol\types\ContainerIds;
+use pocketmine\network\mcpe\protocol\types\WindowTypes;
+use pocketmine\Player;
+
+class PlayerCursorInventory extends BaseInventory{
+	/** @var Player */
+	protected $holder;
+
+	public function __construct(Player $holder){
+		parent::__construct($holder);
+	}
+
+	public function getName() : string{
+		return "Cursor";
+	}
+
+	public function getDefaultSize() : int{
+		return 1;
+	}
+
+	public function setSize(int $size){
+		throw new \BadMethodCallException("Cursor can only carry one item at a time");
+	}
+
+	public function getNetworkType() : int{
+		return WindowTypes::INVENTORY; //This should never be spawned to clients
+	}
+
+	/**
+	 * @param int             $index
+	 * @param Player|Player[] $target
+	 */
+	public function sendSlot(int $index, $target){
+		if($target instanceof Player){
+			$target = [$target];
+		}
+
+		$pk = new InventorySlotPacket();
+		$pk->inventorySlot = $index;
+		$pk->item = clone $this->getItem($index);
+
+		foreach($target as $player){
+			if($player === $this->getHolder()){
+				/** @var Player $player */
+				$pk->windowId = ContainerIds::CURSOR;
+				$player->dataPacket(clone $pk);
+			}else{
+				if(($id = $player->getWindowId($this)) === ContainerIds::NONE){
+					$this->close($player);
+					continue;
+				}
+				$pk->windowId = $id;
+				$player->dataPacket(clone $pk);
+			}
+		}
+	}
+
+	/**
+	 * This override is here for documentation and code completion purposes only.
+	 * @return Player
+	 */
+	public function getHolder(){
+		return $this->holder;
+	}
+}