Yes, just try it like I wrote it. If you want to use vec_set then you have to phent_enable, but I can tell you it works with my way, really.
And no, addcentralforce works for everything, the manual just says that if there is no friction or gravtitation it will fly there constantly (?) which is logic because there is no friction or gravity
"Ich weiss nicht genau, was Sie vorhaben, aber Sie können keine Triggerzonen durch Ihr Level kullern lassen." -JCL, 2011
