Re: [pygame] PyODE

[Greg Ewing <greg.ewing@xxxxxxxxxxxxxxxx>]

Kris Schnee wrote:
> does anyone know 
> how to feed collision information back to the program outside PyODE?

In one of my WIPs I'm using just the collision detection
part of ODE to do something like this. I maintain a dict
that maps geom objects back to the game objects they
represent. Then I call the collide() method of my geom
space with a callback that does the appropriate thing.

My World object has a method that goes like this:

  def for_colliding_objects(self, action):

    def callback(data, geom1, geom2):
      contacts = ode.collide(geom1, geom2)
      if contacts:
        obj1 = self.geom_to_object[geom1]
        obj2 = self.geom_to_object[geom2]
        action(obj1, obj2, contacts)

    self.geom_space.collide(None, callback)

If you've got objects bouncing, you must already have
a loop somewhere that's generating contact information
from colliding geoms, so you should be able to incorporate
it into that.

--
Greg