Collision response animator sliding

Saumane · Post by **Saumane** » Sun Jun 21, 2009 8:16 pm

I'm using the collision response animator, and i have a small problem with it. When player stops moving while on a slope ( "/" ), the player will just slide down. Is it possible to make the animator more "sticky"? Or do i have to edit the engine for that?

CuteAlien · Post by **CuteAlien** » Fri Jun 26, 2009 4:12 pm

As far as I can see it the engine does not seem to differentiate between slopes for floor and any other slopes. In my own collision code I do usually check the normal of the collision triangle for that and modify the sliding accordingly. Maybe that is also somehow possible with newer Irrlicht. Current svn allows setting a callback for collision in ISceneNodeAnimatorCollisionResponse which can be used to receive the collision triangle. But I'm not sure about the best way to react here. Maybe check that normal and when it's upright enough to count as floor, then manually prevent the sliding if you know that your user has not set any input. Something like that.

It's definitely a common situation for which some engine support would probably be useful. So maybe add it to the Feature Requests tracker.

Katsankat · Post by **Katsankat** » Sat Jun 27, 2009 6:44 am

When invoking createCollisionResponseAnimator() the last parameter is the sliding value. Ok in the doc it says nothing, but it works! Put a higher value.

CuteAlien · Post by **CuteAlien** » Sat Jun 27, 2009 1:58 pm

Hehe, we recently discussed about that value and wondered what it does :-) I suppose that means that this value lowers/increases all sliding? It might still be interesting to have different values here for walls/floors (and another value to differentiate walls/floors).