| Upon some experimenting, I definitely thing this is a big improvement. To elaborate further: - RigidBody::setup_particle would create a score state and add it to the model so you never see the score state at all - new decorators Cover and Centroid would do similar things for covers and centroids. - the decorators can have a method added later called, say teardown_particle which would remove the score state - there are some options with the create_x methods: 1) if no one says anything, I will just remove them 2) I can instead deprecate them and implement them in terms of the new decorators 3) if someone really wants I can even have them return the score state and make the caller add the score state as is currently the case (again, if someone asks). On Oct 29, 2009, at 10:45 AM, Javier Ángel Velázquez Muriel wrote:
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