gistfile1.txt

    let mut world = World::new();

    let b1 = Shared::new(Body::Static {
        shape: box ncollide::shape::Ball::new(0.5),
        transform: na::Iso3::new(na::zero(), na::zero())
    });
    world.add(b1.clone());
    let b2 = Shared::new(Body::Static {
        shape: box ncollide::shape::Ball::new(0.5),
        transform: na::Iso3::new(na::Vec3::new(0.0, 10.0, 0.0), na::zero())
    });
    world.add(b2.clone());

    let cast = world.cast_body_nearest(b1, na::Vec3::new(0.0, 10.0, 0.0));