Is this the right way to....

[darkprophet]

lo,
Is this the right way to iterate the contacts and set the friction and bounce factors?

here is the code, please ignore all the PhysicsObject...etc code, its just a holding place for data.

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private void iterateContacts() {             for (int i = 0; i < collision.getContactCount() - 1; i++) {                   // obtain the names of the contacts that                  // have collided                  String nameOfGeom1 = contact.getGeom1().getName();                   String nameOfGeom2 = contact.getGeom2().getName();                   // set the index                  contact.setIndex(i);                   if (nameOfGeom1 != null) {                         // get the PhysicsObject                        PhysicsObject obj = (PhysicsObject) physicsObjects                                     .get(nameOfGeom1);                         // apply the contact information                        contact.setMode(Ode.dContactBounce | Ode.dContactApprox1);                         contact.setBounce(obj.getBounce());                         contact.setBounceVel(obj.getBounceVelocity());                         contact.setMu(Float.MAX_VALUE);                   }                   // set the index                  contact.setIndex(i + 1);                   if (nameOfGeom2 != null) {                         // get the PhysicsObject                        PhysicsObject obj = (PhysicsObject) physicsObjects                                     .get(nameOfGeom2);                         // apply the contact information                        contact.setMode(Ode.dContactBounce | Ode.dContactApprox1);                         contact.setBounce(obj.getBounce());                         contact.setBounceVel(obj.getBounceVelocity());                         contact.setMu(Float.MAX_VALUE);                   }             }       }

Thx, DP

[William Denniss]

I think contact.setIndex() should be the first line.  Otherwise the geoms you are getting are from the previous contact (which could cause problems if there is no previous contact).

Also - Geoms and Bodies can store a miscellaneous Object using the set/getUserData methods.  I find this very useful when iterating over the contacts as I can match up the geom to my game object without needing an extra lookup map.

Will.