Пример #1
0
void
mainloop(game_manager* manager)
{
    event_queue_init();

    game_manager_start(manager);

    unsigned long next_game_tick = black_sdl_get_tick();

	unsigned long fps_counter = 0;
	unsigned long game_tick = 0;
	unsigned long fps_start_time = black_sdl_get_tick();

    while (manager->is_running)
    {
        game_manager_handle_events(manager);

        int loops = 0;
        unsigned int tick = black_sdl_get_tick();
        while(tick > next_game_tick && loops < max_frame_skip)
        {
            game_manager_update(manager, game_tick++);

            next_game_tick += time_per_tick;
            loops++;

            tick = black_sdl_get_tick();
        }

        float interpolation = (tick + time_per_tick - next_game_tick)/time_per_tick;
        game_manager_render(manager, interpolation);

		++fps_counter;
		if(black_sdl_get_tick() - fps_start_time > 1000)
		{
            manager->fps = fps_counter;
			fps_counter = 0;
			fps_start_time = black_sdl_get_tick();
		}
    }

    event_queue_destroy();
}
Пример #2
0
/*      工作者线程        */
static void * event_worker(void * arg)
{
    event_queue_t * peq = arg;
    struct cmd_event * pe;
    struct cmd_event * events[EVENTS_SIZ];
    int cnt;

    peq->sql_db = malloc(sizeof(*(peq->sql_db)));       //在当前线程中打开数据库连接
    if (peq->sql_db == NULL) {
        log_error(LOG_ERROR, "NO MEM");
        exit(1);
    }

    if (sqlite_db_open(peq->sql_db, SQL_DB) < 0) {      //在当前线程中打开数据库连接
        log_error(LOG_ERROR, "event_queue_init");       //!!!出错
    }

    //sleep(1);
    do {
       // printf("\nevent_worker\n");

        cnt = 0;

        while ((pe = event_queue_pop(peq)) != NULL) {
            pe->cb(peq->sql_db, pe->psock, pe->buffer, pe->buf_siz);
            events[cnt++] = pe;
            cnt -= del_events(cnt, events, peq);
        }
        del_all_events(cnt, events, peq);

        event_queue_wait(peq);

        //sleep(1);

    } while (1);

    sqlite_db_close(peq->sql_db);
    free(peq->sql_db);

    event_queue_destroy(peq);
    return NULL;
}