@Garrettwademan: The difference between my script/the one of Germanunkol and yours is, that you add 1 instead of time_step. Adding 1 all the time only counts the frames passed. With adding time_step you can see how much ticks (1 tick = 1/16 second) passed.
Got it?
Yea, thanks again. I will add this later and see how it works out.
