0.1.0
=====
      // Update the world state and all objects in the world
      // Do that with a constante time-delta so that the game will run
      // determistic and not different on different machines
      if(!game_pause && !Menu::current())
        {
          frame_ratio *= game_speed;
          frame_ratio += overlap;
          while (frame_ratio > 0)
            {
              // Update the world
              check_end_conditions();
              if (end_sequence == ENDSEQUENCE_RUNNING)
                action(.5f);
              else if(end_sequence == NO_ENDSEQUENCE)
                action(1.0f);
              frame_ratio -= 1.0f;
            }
          overlap = frame_ratio;
        }

CVS
===
      if(!game_pause && !Menu::current())
        {
          // Update the world
          check_end_conditions();
          if (end_sequence == ENDSEQUENCE_RUNNING)
             action(frame_ratio/2);
          else if(end_sequence == NO_ENDSEQUENCE)
             action(frame_ratio);
        }
      else
        {
          ++pause_menu_frame;
          SDL_Delay(50);
        }