UE4 ActionRPG

# ActionRPG

* 播放LevelSequence
	* 在场景中放入level sequence,在beginplay中找到ls,接着play ls.
		* 接着可以bind event on finished
			* niagara particle system也可以这样bind  

* player controller -> Set Virtual Joystick Visibility

* 有个叫做DoOnce的节点
* 有个叫做RemoeAllWidgets的节点
* open level的逻辑写在GameInstance里
* widget animation->GetEndTime(),从而可以在动画播放完后做事