problem with sprite.

void DrawScene()
{

  sun.clearBG();
  Swords.clearBG();

  sun.updateBG();
  Swords.updateBG();

  sun.draw();
  Swords.draw();

  SDL_Flip(screen);
}


SDL_Surface * ImageLoad(char *file)
{
  SDL_Surface *temp1, *temp2;
  temp1 = SDL_LoadBMP(file);
  temp2 = SDL_DisplayFormat(temp1);
  SDL_FreeSurface(temp1);
  return temp2;
}

int InitImages()
{
  back = ImageLoad("back.bmp");
  image = ImageLoad("map1.bmp");
  return 0;
}
//---------------------------------------------

void DrawBG(SDL_Surface *bg)
{
    //Slock(screen);
	SDL_FillRect(screen, NULL, 0);

  DrawIMG(bg, 0, 0);	
}

//---------------------------------------------


int main(int argc, char *argv[])
{
   	Uint8* keys;

	my_timer_id = SDL_AddTimer((33/10)*10, my_callbackfunc, my_callback_param);

	if( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO|SDL_INIT_TIMER) <0 )
	{
		printf("Unable to init SDL: %s\n", SDL_GetError());
		return 1;
	}

	atexit(SDL_Quit);


    if(Mix_OpenAudio(44100, AUDIO_S16SYS, 2, 2048) < 0)
	{
		printf("Warning: Couldn't set 44100 Hz 16-bit audio\n		- Reason: %s\n", SDL_GetError());
	}




 screen=SDL_SetVideoMode(SCREENWIDTH,SCREENHEIGHT,32,SDL_SWSURFACE|SDL_FULLSCREEN|SDL_HWPALETTE);
  if ( screen == NULL )
  {
    printf("Unable to set 640x480 video: %s\n", SDL_GetError());
    exit(1);
  }
  
	//load the music
    music = Mix_LoadMUS("data/sound/(sblu)moon6.xm");

	

	//play the music

	if(!Mix_PlayingMusic())
    {
      // then start playing it.
      Mix_PlayMusic(music, 0);
    }
  
  Swordsbase.init("data/testC/down");
  sunbase.init("data/sun");

  sun.init(&sunbase,screen);
  sun.set(480,50);
  sun.setSpeed(1);

  Swords.init(&Swordsbase,screen);
  Swords.set(150,300);
  Swords.setSpeed(2);


  SDL_ShowCursor(0);

  font = initFont("data/font");

  InitImages();
  //DrawBG(back);

  

  while (game_state!=GAME_EXIT)
  {
    SDL_Event event;

    while ( SDL_PollEvent(&event) )
    {
      if ( event.type == SDL_QUIT )  
		  { game_state=GAME_EXIT;}

      if ( event.type == SDL_KEYDOWN )
      {
        if ( event.key.keysym.sym == SDLK_ESCAPE ) { game_state=GAME_EXIT; }
      }
    }

    keys = SDL_GetKeyState(NULL);

    if ( keys[SDLK_UP] ) { Swords.yadd(-1); }
    if ( keys[SDLK_DOWN] ) { Swords.yadd(1); }
    if ( keys[SDLK_LEFT] ) { Swords.xadd(-1); }
    if ( keys[SDLK_RIGHT] ) { Swords.xadd(1); }
	if ( keys[SDLK_s] )
		{
            if(game_state!=GAME_RUN||game_state!=GAME_STARTING)
			{
				SDL_FillRect(screen,0,0);

				sun.clearBG();
				Swords.clearBG();

				game_state = GAME_STARTING;
				
			}
			//SDL_FillRect(screen,0,0);
			//DrawIMG(image, 0, 0);
			//SDL_Flip(screen);
		}
	if(game_state == GAME_INIT)
	DrawBG(back);
	if(game_state == GAME_STARTING)
	{

	    SDL_FillRect(screen, NULL, 0);
		DrawBG(image);
		//SDL_Flip(screen);
		//game_state++;
	}


    DrawScene();

  }

  return 0;
}