Python Computer Graphics Kit

On 08/05/06, Ricardo Kirkner <ricardokirkner@...> wrote:
> So, I think I found the answer to my previous post. I can now controll
> collisions through the collidecategory and collidebits settings.
>
> But I have a new question.... :-)
>
> How do I write an interactive controller for my bodies (basically, how
> can I controll my joints throught the mouse/keyboard)?

You can either use (angular or linear) motors, or apply a force
directly to a body. Read sections 7.3.8, 7.5.1, and 7.6 in the ODE
manual.

Ricardo Kirkner wrote:
> How do I write an interactive controller for my bodies (basically, how
> can I controll my joints throught the mouse/keyboard)?

You can register callback functions with the event manager as follows:

def onLeftDown(evt):
     """Callback function."""
     print "Left down event:",evt

eventmanager.connect(LEFT_DOWN, onLeftDown)

See http://cgkit.sourceforge.net/doc2/module-cgkit.events.html for a 
full list of events you can connect to and for a list of event objects 
you might receive as input (the arguments depend on the type of event).
See http://cgkit.sourceforge.net/doc2/module-cgkit.eventmanager.html for 
a description of the event manager.

As you mentioned the ODEDynamics component, this one can also emit 
events in the case of collisions (you have to set collision_events=True 
in the constructor). You can register with the ODE_COLLISION event which 
will send ODECollisionEvent objects 
(http://cgkit.sourceforge.net/doc2/odecollisionevent.html).

- Matthias -