def update(self):
     Physics.instance().update()
     if not self.is_updating:
         pass
     index = 0
     self._update_list_game_object()
     for game_object in self._game_objects.values():
         if not game_object.is_updating:
             continue
         try:
             game_object.update()
         except:
             errorutils.handle_exception()
         index += 1