5 static time_t time_of_day_offset;
10 clock_gettime(CLOCK_REALTIME, &ts);
12 return fmod((f64) ts.tv_sec - time_of_day_offset + ts.tv_nsec / 1.0e9, MINUTES_PER_DAY);
14 void set_time_of_day(time_t new_time)
16 time_of_day_offset = time(NULL) - new_time;
21 return 2.0 * M_PI * (f64) get_time_of_day() / MINUTES_PER_DAY + M_PI;
26 return clamp(cos(get_sun_angle()) * 2.0 + 0.5, 0.0, 1.0);
29 void split_time_of_day(int *hours, int *minutes)
31 time_t time_of_day = get_time_of_day();
33 *minutes = time_of_day % MINUTES_PER_HOUR;
34 *hours = time_of_day / MINUTES_PER_HOUR;