/* Internal wrapper to SDL_GetTicks that ensures a non-zero return value. 
Andreas Schiffler  */
Uint32 _getTicks()
/* Internal wrapper to SDL_GetTicks that ensures a non-zero return value. 
Andreas Schiffler  */
Uint32 _getTicks()
{
	Uint32 ticks = SDL_GetTicks();
	if (ticks == 0) {
		return 1;
	} else {
		return ticks;
	}
}