static int mMsg_Main_Disappear_SetScale(mMsg_Window_c* msg_p, GAME* game) {
  const f32 max = 18.0f;

  if (msg_p->timer < max) {
    f32 scale;

    msg_p->timer += 1.0f;
    scale = 1.0f - get_percent_forAccelBrake(msg_p->timer, 0.0f, max, 0.0f, 0.0f);
    msg_p->window_scale = scale;
    msg_p->text_scale = scale;
    return FALSE;
  }
  else {
    msg_p->window_scale = 0.0f;
    msg_p->text_scale = 0.0f;
    msg_p->timer = 0.0f;
    return TRUE;
  }
}

static void mMsg_request_main_index_fromDisappear(mMsg_Window_c* msg_p, int scale_done_flag) {
  if (scale_done_flag) {
    mMsg_Change_request_main_index(msg_p, mMsg_INDEX_HIDE, 5);
  }
}

static void mMsg_Main_Disappear(mMsg_Window_c* msg_p, GAME* game) {
  int scaling_done_flag = mMsg_Main_Disappear_SetScale(msg_p, game);
  mMsg_request_main_index_fromDisappear(msg_p, scaling_done_flag);
  mMsg_MainSetup_Window(msg_p, game);
}

static void mMsg_MainSetup_Disappear(mMsg_Window_c* msg_p, GAME* game) {
  mMsg_sound_spec_change_scene(msg_p);
  msg_p->main_index = mMsg_INDEX_DISAPPEAR;
  msg_p->draw_flag = TRUE;
  msg_p->window_scale = 1.0f;
  msg_p->text_scale = 1.0f;
  msg_p->timer = 0.0f;
  msg_p->show_continue_button = FALSE;

  if (mDemo_Get_use_zoom_sound()) {
    if (mDemo_Get_camera() == FALSE) {
      mMsg_sound_ZOOMDOWN_SHORT(msg_p);
    }
    else {
      mMsg_sound_ZOOMDOWN_LONG(msg_p);
    }
  }

  msg_p->requested_main_index = -1;
  msg_p->requested_priority = 4;
}