Question

In cocos2d environment and box2D when an spherical object falls on a blunt slant obstacle, it moves really slowly, that’s nauseating, if you have coded to not to have any interaction with world while object is in motion. Is there any way to get rid of this slow motion of object?

Answer 1

Try changing the friction value of the obstacle or the object.

            b2FixtureDef objectFixtureDef;
            objectFixtureDef.friction = 0.2f;

You can also change the restitution of an object (it’s bouncyness).

http://www.box2d.org/manual.html#_Toc258082972