Hi, I've a problem with sprite animation. I use the idea of the cone3d tutorial. but the frame runs without any smoothness (what is the contrary?sorry my english:). I clean the code to test the draw fuction, look like this..

class Ssprite {
    SDL_Rect pos;
    vector<SDL_Surface*> tiles;

    SDL_Surface* screen;

    int currFrame;
    int lastTicks; //for animation

    public:
        Ssprite(const char*,SDL_Surface*);
        void Draw();
        
};



void Ssprite::Draw(){
    if(lastTicks + PAUSE < SDL_GetTicks()){
        currFrame++;
        if(currFrame > 4)
            currFrame=0;

        SDL_BlitSurface(tiles[currFrame],0,screen,&pos);
    }
    lastTicks = SDL_GetTicks();

} 

With PAUSE = 1 or PAUSE = 2 run very fast at start but with 3 or up it runs without any smoothness. with PAUSE = 5 freeze on some frame for about 1 sec before change frame!! This is the main:

int main ( int argc, char** argv )
{
    // initialize SDL video
    if ( SDL_Init( SDL_INIT_EVERYTHING ) < 0 )
    {
        printf( "Unable to init SDL: %s\n", SDL_GetError() );
        return 1;
    }


    atexit(SDL_Quit);

    SDL_Surface* screen = SDL_SetVideoMode(640, 480, 32,
                                           SDL_HWSURFACE|SDL_DOUBLEBUF);
    
    Ssprite player("",screen);

    bool done = false;
    while (!done)

          player.Draw();

        
        SDL_Flip(screen);
    } 
   
    printf("Exited cleanly\n");
    return 0;
}

I've clened the code a bit for better reading I can't figure out what i'm doing wrong. I'm devving on debian linux with Code::Blocks. Thanks Garulf- PS: what's the tag to show the code in a scrolling frame?

I modify your draw function an bit. Try this out instead.
void Ssprite::Draw()
{
if(lastTicks + PAUSE < SDL_GetTicks())
{
currFrame++;
if(currFrame > 4)
currFrame=0;

lastTicks = SDL_GetTicks();
}
SDL_BlitSurface(tiles[currFrame],0,screen,&pos);
}

//I notice that you did not initialize lastTicks to anything. But your best bet could be that you could go and initialize it to SDL_GetTick() in the constructor of your Ssprite class. Also what is the value of PAUSE. If you want the animation to last one second, you should set Pause to 1000 since SDL_GetTick() is also in millisecond.

Yes!..it works!Thanks.
Yes, i already initialize lastTicks in the class constructor, when i also fill the vector with the surfaces. :)
Thanks Again
Garulf-