int OSystem_SDL::mySDL_PollEvent(SDL_Event *event) {
	int r = SDL_PollEvent(event);
	if (!r)
		return 0;
	if (event->type == SDL_ACTIVEEVENT){
		if (event->active.state == SDL_APPINPUTFOCUS && !event->active.gain){
			bool st_pause = st_pause_ticks_started();
			if (!st_pause)
				st_pause_ticks_start();
			suspendAudio(); 
			for(;;){
			printf("wait\n");
			r = SDL_WaitEvent(event);
			printf("wait done\n");
			if (!r)
				continue;
			if (event->type == SDL_QUIT)
				return 1;
			if (event->type != SDL_ACTIVEEVENT)
				continue;
			if (event->active.state == SDL_APPINPUTFOCUS && event->active.gain){
				resumeAudio();
				if (!st_pause) st_pause_ticks_stop();
					return 1;
				}
			}
		}
	}
  return r;
}

unsigned int st_pause_ticks, st_pause_count;

unsigned int st_get_ticks(void) {
	if (st_pause_count != 0)
		return /*SDL_GetTicks()*/ - st_pause_ticks /*- SDL_GetTicks()*/ + st_pause_count;
	else
		return SDL_GetTicks() - st_pause_ticks;
}

void st_pause_ticks_init(void) {
	st_pause_ticks = 0;
	st_pause_count = 0;
}

void st_pause_ticks_start(void) {
	if (st_pause_count == 0)
		st_pause_count = SDL_GetTicks();
}

void st_pause_ticks_stop(void) {
	if (st_pause_count == 0)
		return;
	st_pause_ticks += SDL_GetTicks() - st_pause_count;
	st_pause_count = 0;
}

bool st_pause_ticks_started(void) {
	if (st_pause_count == 0)
		return false;
	else
		return true;
}

void OSystem_SDL::suspendAudio() {
	// if (audioSuspended) return;
	SDL_CloseAudio();
	audioSuspended = true;
}

int OSystem_SDL::resumeAudio() {
	if (!audioSuspended)
		return -2;
	if (SDL_OpenAudio(&obtained, NULL) < 0){
		printf("audio resumed\n");
		return -1;
	}
	SDL_PauseAudio(0);
	audioSuspended = false;
	return 0;
}