This is a quick one:

How do you add a timer delay to a game loop?

Using SDL you do the following:

#define GAME_LOOP_DELAY_MS 12

...

while(LastTickCount + GAME_LOOP_DELAY_MS > SDL_GetTicks());
LastTickCount = SDL_GetTicks();


This will work even on overclocked/underclocked hardware. Use it wisely.

Cheers