[iggy1]

For the barrier thing you'll probably need to play around with this function, probably need a repeating timer to keep the object rotating. (probably wont look that smooth though)
https://sampwiki.blast.hk/wiki/SetObjectRot


EDIT: Just seen this link in another post will probably be better than making your own.
http://forum.sa-mp.com/showthread.ph...ghlight=objrot