/vr/ - Retro Games

Okay dumb DECORATE math question here:
I'm trying to spawn a ring of x projectiles, x being any possible number (below 360). But sometimes it appears as if it's missing out on spawning projectiles or my math is dumb.

If you replace [n] with say 10 or 4 it works perfectly fine. but if you use something like 11 it starts getting funky. Is it due to 360 not dividing cleanly?
here's the code:
http://pastebin.com/QDWcHPfV