Miscellany

void HandleEvent(SDL_Event event)
{
       srcCam.x = 0;
srcCam.y = 0;  
  switch (event.type) {
    /* close button clicked */
    case SDL_QUIT:
      gameover = 1;
      break;
    /* handle the keyboard */
    case SDL_KEYDOWN:
      switch (event.key.keysym.sym) {
        case SDLK_ESCAPE:
        case SDLK_q:
          gameover = 1;
          break;
        case SDLK_a:
          if ( rcSrc.x == 192 )
            rcSrc.x = 224;
          else
            rcSrc.x = 192;
          rcSprite.x -= speedplayer1*32;
          srcCam.x -= 1;
          break;
        case SDLK_d:
          if ( rcSrc.x == 64 )
            rcSrc.x = 96;
          else
            rcSrc.x = 64;
          rcSprite.x += speedplayer1*32;
          srcCam.x += 1;
          break;
        case SDLK_w:
          if ( rcSrc.x == 0 )
            rcSrc.x = 32;
          else
            rcSrc.x = 0;
          rcSprite.y -= speedplayer1*32;
          srcCam.y -= 1;
          break;
        case SDLK_s:
          if ( rcSrc.x == 128 )
            rcSrc.x = 160;
          else
            rcSrc.x = 128;
          rcSprite.y += speedplayer1*32;
          srcCam.y += 1;
          break;
      }
      break;
  }
}       

int main ( int argc, char *argv[] )
{
  SDL_Surface *screen, *temp, *lol, *sprite, *grass;
  SDL_Rect rcGrass;
  int colorkey;

  /* initialize SDL */
  SDL_Init(SDL_INIT_VIDEO);

  /* set the title bar */
  SDL_WM_SetCaption("Oxeria RPG", "MMORPG");
  

  /* create window */
  screen = SDL_SetVideoMode(640, 440, 0, 0);

  /* set keyboard repeat */
  SDL_EnableKeyRepeat(20, 20);

  /* load sprite */
  temp   = SDL_LoadBMP("data//graphic//sprite.bmp");
  sprite = SDL_DisplayFormat(temp);
  SDL_FreeSurface(temp);
  
      // Load a bmp file as the icon of the program
  SDL_WM_SetIcon(SDL_LoadBMP("data//graphic//icon.bmp"),NULL);

  /* setup sprite colorkey and turn on RLE */
  colorkey = SDL_MapRGB(screen->format, 255, 0, 255);
  SDL_SetColorKey(sprite, SDL_SRCCOLORKEY | SDL_RLEACCEL, colorkey);

  /* set sprite position */
  rcSprite.x = 150;
  rcSprite.y = 150;
  
  rcSrc.x = 128;
  rcSrc.y = 0;
  rcSrc.w = TILE_SIZE;
  rcSrc.h = TILE_SIZE;


  gameover = 0;

  /* message pump */
  while (!gameover)
  {
    SDL_Event event;

    /* look for an event */
    if (SDL_PollEvent(&event)) {
      HandleEvent(event);
    }

    /* collide with edges of screen */
    if ( rcSprite.x < 0 ) {
      rcSprite.x = 0;
    }
    else if ( rcSprite.x > WORLD_SIZEY-TILE_SIZE ) {
      rcSprite.x = WORLD_SIZEY-TILE_SIZE;
    }
    if ( rcSprite.y < 0 ) {
      rcSprite.y = 0;
    }
    else if ( rcSprite.y > WORLD_SIZEX-TILE_SIZE ) {
      rcSprite.y = WORLD_SIZEX-TILE_SIZE;
    }
    /* draw the sprite */
    SDL_BlitSurface(sprite, &rcSrc, screen, &rcSprite);

    /* update the screen */
    SDL_UpdateRect(screen, 0, 0, 0, 0);
  }

  /* clean up */
  SDL_FreeSurface(sprite);
  SDL_Quit();

  return 0;
}