Dragging a circle with a mouse...

[raden_muaz]

How do I drag a circle or any other shape with a mouse?

[Bauerpauer]

I accomplished this by adding active shapes to a body that is NOT added to the space, then directly setting body->p based on the mouse (or in my case, finger) position. The shapes are added to the space, not the body. I'm pretty sure this isn't the recommended way to do this, so I'm curious what others have done to get this working.

[slembcke]

There is this code by supertommy that works with Chipmunk 4.1.0 for doing mouse control:
http://www.slembcke.net/forums/viewtopic.php?f=6&t=196

The code in trunk also adds a bunch of new controls for joints that can help make mouse control smoother and more stable. All of the default demos in truck allow you to grab shapes with the mouse.