How to access collision forces in integrated chipmunk physics?

[atctrl]

Hi all,

How one can access the collision forces and contact normal when using integrated Chipmunk of cocos2d-x v. 3.10? I think they are on collision arbiter of chipmunk and available in postsolve state but what would be a proper way to access them?

Best,
atctrl

[Lazy_Gamer]

Check out this post, it might help you, if stuck somewhere then let me know

PhysicsBody dont stop bounce

i am guessing your ground is Static and player body is Dynamic, so if thats the case then you have to forcefully set collision restitution to 0. In your .h file define it like // Physics Contact Listener..... bool onContactBegin(PhysicsContact& contact); bool onContactPreSolve(PhysicsContact& contact, PhysicsContactPreSolve& solve); void onContactPostSolve(PhysicsContact& contact, const PhysicsContactPostSolve& solve); void onContactSeperate(PhysicsContact& contact); and in you init() met…

Thanks

[atctrl]

I have the callback working and I found the collision normal vector. But I still do not know how to get the collision reaction force. In the chipmunk arbiter there seems to be a collision impulse, from which the collision force could be extracted by dividing with the time step. The chipmunk arbiter seems to be internal and without direct access from cocos2d-x interface.

Best,
atctrl