SDL_DestroyWindow is setting window->magic to NULL too early. - window->magic is also checked in SDL_DestroyRenderer. All cleanup code like freeing the renderer and textures is not executed. The patch moves window_magic = NULL behind the SDL_DestroyRenderer call. Kind regards, André

/*
 *	common.h
 *	written by Holmes Futrell
 *	use however you want
 */

#define SCREEN_WIDTH 320
#define SCREEN_HEIGHT 480

extern int randomInt(int min, int max);
extern float randomFloat(float min, float max);
extern void fatalError(const char *string);