EDIT: Okay, finally figured this out.. Why doesn't it mention anywhere that you still need to attach the bodies to the contact joint? Thought that'd be passed in with ContactGeom... Oh well. Why aren't there any good tutorials for ODE? Okay, somehow I can't get this to work.. I thought I'd make myself familiar with ODE and wanted to make a Pong game for that. A weird choice, maybe, but here I am. Basically, it works fine up to the point where I am supposed to create the contact joint. I create it, it doesn't complain, but my ball just keeps flying on through the wall / paddle / whatever. What am I doing wrong? Here are the relevant sections of my code:

void Game::CheckCollisions()
{
	for(std::vector<CL_SharedPtr<Object> >::iterator it=Objects.begin();it!=Objects.end();it++)
	{
		dContactGeom contactgeom;
		dContact contact;

		int num=dCollide(MyBall->GetGeom(),(*it)->GetGeom(),1,&contactgeom,sizeof(dContactGeom));
		if(num!=0)
		{
			bool MakeCollision=false;
			memset(&contact,0,sizeof(dContact));
			contact.geom=contactgeom;
			switch((*it)->GetType())
			{
			case 1: //Wall
				contact.surface.mode=dContactBounce;
				contact.surface.bounce=1;
				contact.surface.bounce_vel=0;
				MakeCollision=true;
				break;
			case 2: //Paddle
				contact.surface.mode=dContactBounce;
				contact.surface.bounce=1;
				contact.surface.bounce_vel=0;
				MakeCollision=true;
				break;
			}
			if(MakeCollision)
				dJointCreateContact(World,collisionjoints,&contact);
		}

	}
}

void Game::Update()
{
	CheckCollisions();
	dWorldQuickStep (World, 5);
	dJointGroupEmpty(collisionjoints);
	for(std::vector<CL_SharedPtr<Object> >::iterator it=Objects.begin();it!=Objects.end();it++)
		(*it)->Update();
}

[Edited by - Wuntvor on August 13, 2004 6:59:23 AM]