Bouncing

[martin.knotek]

Hi, I’m trying create ball in Windows with reflective borders. With infinite movement. How is the best practice in chipmunk?

[slembcke]

If you want things to have a perfect bounce, you need to set the shape.e (elasticity) of all your shapes to 1.0 and the shape.u (friction) of them to 0.0.

Take a look at how the Bounce demo does it: http://code.google.com/p/chipmunk-physi ... o/Bounce.c

[martin.knotek]

And how is possible move with items without gravitation?

[slembcke]

You can apply forces to the the cpBody objects. You can also set their velocity directly if you just want to start them off moving in a certain direction.