@classmethod
def set_game_settings(cls, game_settings):
    """
        set up some Balance settings on engine
        :param game_settings: settings of the Balance
        """
    if hasattr(game_settings, 'scenes_list'):
        cls.scenes = game_settings.scenes_list
    else:
        raise Exception('No scenes_list in game_settings file!')
    if hasattr(game_settings, 'game_name'):
        cls.game_name = game_settings.game_name
    if hasattr(game_settings, 'screen_width'):
        cls.screen_width = game_settings.screen_width
    if hasattr(game_settings, 'screen_height'):
        cls.screen_height = game_settings.screen_height
