Level rewrite middle step

src/pocketmine/event/level/SpawnChangeEvent.php

@@ -0,0 +1,48 @@
+<?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\event\level;
+
+use pocketmine\level\Level;
+use pocketmine\level\Position;
+
+/**
+ * An event that is called when a level spawn changes.
+ * The previous spawn is included
+ */
+class SpawnChangeEvent extends LevelEvent{
+	public static $handlerList = null;
+
+	/** @var Position */
+	private $previousSpawn;
+
+	public function __construct(Level $level, Position $previousSpawn){
+		$this->level = $level;
+		$this->previousSpawn = $previousSpawn;
+	}
+
+	/**
+	 * @return Position
+	 */
+	public function getPreviousSpawn(){
+		return $this->previousSpawn;
+	}
+}