I emailed Brad about this and never got a reply, so I'm trying my luck here instead.
I've asked on numerous forums, NG, TGH etcetera, but I can't get any help, it seems Brad is the only one who knows about this stuff well.
I try making a simple platformer, but when the character hits a slope it either goes straight through the slope slowing down gradually (due to a friction variable) or just jerks about the place, I know this is due to the angle of the character versus the vector's normal.
I realise that the way Brad does it is finding the vector's normal by using anchors and finding the distance between each one therefore calculating the angle to rotate to, but I just can't get it to work.
If anybody (preferably Brad himself) could maybe provide an example (like his engine shown in making of FPA) or make a tutorial, I would greatly appreciate it.
Oh yeah, my AIM is niallatron, and MSN is NiallTL[at]hotmail.com.