Is cursor or touch under ui (unity3d)

gistfile1.txt

public static bool IsCursorOrTouchUnderUI()
    {
        if (EventSystem.current == null)
            return true;
        if (EventSystem.current.enabled == false)
            return true;
        if (EventSystem.current.currentSelectedGameObject != null)
            return true;
        if (EventSystem.current.IsPointerOverGameObject()) //лишняя и грузит? Если проблем нет, то удалить
            return true;
        if (Input.touchCount > 0 && EventSystem.current.IsPointerOverGameObject(Input.GetTouch(0).fingerId))
            return true;
        return false;
    }