public void SetUp()
{
conf = new DefaultCollisionConfiguration();
dispatcher = new CollisionDispatcher(conf);
broadphase = new AxisSweep3(new Vector3(-1000, -1000, -1000), new Vector3(1000, 1000, 1000));
world = new DiscreteDynamicsWorld(dispatcher, broadphase, null, conf);
action = new Action();
world.AddAction(action);
world.AddAction(action);
world.RemoveAction(action);
world.RemoveAction(action);
world.AddAction(action);
}