You mean that it slides like on an ice rink? That’s a matter of friction set.
I just noticed that this version only takes the ground’s friction into consideration. I’m not sure why ATM (since both are added to the contact), so for now just set your ground’s friction to a higher value while I investigate on the problem.
FIY, I’m planning a major update to this code. The new version will make it easier to add stuff and bring some other nice features. But there’s still some things I need to cross off my to-do list before I can extract the updated framework from the rest of my code and upload it. So just stay tuned.
Also, remember that this is still a work in progress, so keep informing me of any glitches you happen to find.
Thanx for your interest in this code, have fun with it.
Coppertop