[Unity3D] Unity5에서 마우스가 UI위에 있는지 체크하기.

private UnityEngine.EventSystems.EventSystem _eventSystem;
 
void Start () {
    _eventSystem = GameObject.Find("EventSystem").GetComponent<UnityEngine.EventSystems.EventSystem>();
}
void OnMouseOver () {
    if(_eventSystem.IsPointerOverEventSystemObject()) {
    // we're over a UI element... peace out
    return;
   }
}