In an effort to teach myself, I've done your tutorials and started doing something similar with a ball, floor and walls. I'd be interested in any suggestions or advice as you run into it. Here's what I'm doing now. b
ball = Model::Sphere();
ball->SetMaterial(boxMaterial);
ball->SetPosition( 0, 0, -1 );
//ball->SetVelocity(Vec3(1,1,1));
ball->AddForce(-30000,0,0);
Shape* ballShape = Shape::Sphere(0,0,0, 0,0,0, 1,1,1);
ball->SetShape(ballShape);
ball->SetMass(10);
ballShape->Release();
ball->SetPhysicsMode(Entity::RigidBodyPhysics);
ball->SetCollisionType(Collision::Prop);
Dean Witcraft
Lots of programming experience, 0 game development