def pad_down?(button_code, pad_number = 0)
      if button_code == P_BUTTON0 && sdl_key_press?(SDL::Key::Z) ||
          button_code == P_BUTTON1 && sdl_key_press?(SDL::Key::X) ||
          button_code == P_BUTTON2 && sdl_key_press?(SDL::Key::C) ||
          button_code == P_LEFT && sdl_key_press?(SDL::Key::LEFT) ||