Changing order of Groups properly

[Peter Varo]

I'm having problems on updating the order of groups in a pyglet.graphics.Batch. I don't want to use pyglet.graphics.OrderedGroups, since I need the set_state() and unset_state() methods of the pyglet.graphics.Group. (However I tried encapsulating a order-independent Groups inside OrderedGroups and I tried to change the order of this group later, but it just turned out that I still need to reorder them inside the Batch object if any order property changed.

So at the moment I'm switching the value of an underscored flag (which is clearly not the best thing to do..) after I changed my subclassed Group object's order property:

    batch._draw_list_dirty = True

So technically I'm forcing the Batch object to call self._update_draw_list(). Well, it is working, but I don't think this is the proper way to do this..

Any suggestions?

Thanks in advance!

[Jorge Cardoso Leitão]

Hi Peter.

I had this problem before, also when using groups, and I used this solution.

From the code of Batch, this seems to be the only way.

I think this should be exposed in the pyglet.graphics.Batch public API; added as issue 687.

Cheers,

Jorge

[Peter Varo]

Thanks for the reply -- but after my post, I wrote my own Batch and Group and VBO. And a few days later I wrote my own Pyglet, mostly in C interfaced with Cython -- so I guess my problem is solved now:)

P

—

Peter Varo

Jewelry & Product Designer

Junior Assistant Professor, MOME

—

www.petervaro.com

+3630 330 38 78

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