Add PlayerToggleFlightEvent

src/pocketmine/Player.php

@@ -60,6 +60,7 @@ use pocketmine\event\player\PlayerMoveEvent;
 use pocketmine\event\player\PlayerPreLoginEvent;
 use pocketmine\event\player\PlayerQuitEvent;
 use pocketmine\event\player\PlayerRespawnEvent;
+use pocketmine\event\player\PlayerToggleFlightEvent;
 use pocketmine\event\player\PlayerToggleSneakEvent;
 use pocketmine\event\player\PlayerToggleSprintEvent;
 use pocketmine\event\server\DataPacketReceiveEvent;
@@ -1849,7 +1850,12 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 					$this->kick("Flying is not enabled on this server");
 					break;
 				}else{
-					$this->isFlying = $packet->isFlying;
+					$this->server->getPluginManager()->callEvent($ev = new PlayerToggleFlightEvent($this, $packet->isFlying));
+					if($ev->isCancelled()){
+						$this->sendSettings();
+					}else{
+						$this->isFlying = $ev->isFlying();
+					}
 					break;
 				}
 				break;

src/pocketmine/event/player/PlayerToggleFlightEvent.php

@@ -0,0 +1,42 @@
+<?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\player;
+
+use pocketmine\event\Cancellable;
+use pocketmine\Player;
+
+class PlayerToggleFlightEvent extends PlayerEvent implements Cancellable{
+	public static $handlerList = null;
+
+	/** @var bool */
+	protected $isFlying;
+
+	public function __construct(Player $player, $isFlying){
+		$this->player = $player;
+		$this->isFlying = (bool) $isFlying;
+	}
+
+	public function isFlying(){
+		return $this->isFlying;
+	}
+
+}