Algodoo

This thing is called _foo (i think : )

Type _test:= 10 into blank bar on top of that panel on photo
- ALWAYS use _ in front or it can "despawn" sometimes
- Instead of "test" write what you need
- Instead of "10" write any value of any type
- Use this := only first time to declare it
- For rewriting use _test= 20 without :
- If you want to work with it, script need to be done "inside" of object that include _foo (there is some exception how to get around, but i don´t know if you need it now)
- Look at the forum for help about _foo or look at some of my scenes with guns
(lot of my guns uses NO variabiles only _foo so they are phunet-save)

type in the top box of the script menu:

_normalize := (e)=>{
ans := v / math.vec.len(v);
ans
}

this snippet seems to take 'v' and divide it by its magnitude so that _normalize has a magnitude of one exactly.

How do you use math.vec.len?