The time passed since start of the game, in ticks.
0 .. 999999
This variable is increased every frame cycle by time_frame,
thus it's accurate by one frame. For measuring time with higher precision
use the timer function.
ent_animate(my,"frame",total_ticks % 100,ANM_CYCLE);
time_step, time_factor, fps_max, fps_min, fps_lock, timer, wait, total_secs