[SDL] FPS

[Brian Barrett]

On 1/21/06, Thiago Nunes Leite <luthi at sili.com.br> wrote:
> Yes I know, I'm using SFont for handling fonts. My problem is how do i count
> fps?

each time you draw thats a frame. so just make an int outside the
loop, increment it every frame. store SDL_GetTicks() when you just
enter the mainloop.

so your main loop looks something like this:

int numFrames = 0;
Uint32 startTime = SDL_GetTicks();
while( gameRunning() )
{
    getInput();
    updateObjects();
    drawObjects();
   ++numFrames;
}

 at any point when you want to know the average fames per second, use
this calculation

float fps = ( numFrames/(float)(SDL_GetTicks() - startTime) )*1000;