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annotate pytouhou/ui/background.py @ 222:5cac48b328ad

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Refactor rendering code a bit. Move duplicated camera setup code to a new “setup_camera” method, and move common methods to a new “Renderer” module in order to make individual sprite rendering easier.
author Thibaut Girka <thib@sitedethib.com>
date Sun, 18 Dec 2011 20:47:48 +0100
parents ee6dfd14a785
children
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2a03940deea3 Move everything graphical to pytouhou.opengl!
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
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4 ##
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5 ## This program is free software; you can redistribute it and/or modify
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6 ## it under the terms of the GNU General Public License as published
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7 ## by the Free Software Foundation; version 3 only.
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8 ##
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9 ## This program is distributed in the hope that it will be useful,
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ## GNU General Public License for more details.
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13 ##
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14
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15 #TODO: lots of things
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16
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17 from struct import pack
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18 from itertools import chain
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19
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ee6dfd14a785 Rename pytouhou.opengl to pytouhou.ui, makes much more sense that way.
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20 from .sprite import get_sprite_rendering_data
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21
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22 def get_background_rendering_data(background):
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23 #TODO
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24 try:
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25 return background._rendering_data
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26 except AttributeError:
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27 pass
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28
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29 vertices = []
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30 uvs = []
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31 colors = []
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32 for ox, oy, oz, model_id, model in background.object_instances:
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33 for ox2, oy2, oz2, width_override, height_override, sprite in model:
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34 key, (vertices2, uvs2, colors2) = get_sprite_rendering_data(sprite)
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35 vertices.extend((x + ox + ox2, y + oy + oy2, z + oz + oz2) for x, y, z in vertices2)
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36 uvs.extend(uvs2)
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37 colors.extend(colors2)
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38
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39 nb_vertices = len(vertices)
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40 vertices = pack(str(3 * nb_vertices) + 'f', *chain(*vertices))
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41 uvs = pack(str(2 * nb_vertices) + 'f', *uvs)
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42 colors = pack(str(4 * nb_vertices) + 'B', *colors)
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44 background._rendering_data = [(key, (nb_vertices, vertices, uvs, colors))]
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45
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46 return background._rendering_data