Thread: Animation in SDL

I've output dT every frame and it's always 13. Here's how I've calculated it:

Code:

Uint32 lastTime = 0, thisTime = SDL_GetTicks(), dT = 0;

// Once each frame
lastTime = thisTime;
thisTime = SDL_GetTicks();
dT = thisTime - lastTime;

EDIT: I'm a turd.