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annotate pytouhou/game/background.py @ 397:c5ba11ede097

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Don’t duplicate values in sprite rendering data.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 06 Feb 2013 21:41:05 +0100
parents bdcf2077e368
children c9433188ffdb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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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15
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16 from pytouhou.utils.interpolator import Interpolator
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17 from pytouhou.vm.anmrunner import ANMRunner
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18 from pytouhou.game.sprite import Sprite
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20
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21 class Background(object):
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22 def __init__(self, stage, anm_wrapper):
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23 self.stage = stage
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24 self.anm_wrapper = anm_wrapper
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25 self.last_frame = -1
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27 self.models = []
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28 self.object_instances = []
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29 self.anm_runners = []
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31 self.position_interpolator = Interpolator((0, 0, 0))
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32 self.fog_interpolator = Interpolator((0, 0, 0, 0, 0))
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33 self.position2_interpolator = Interpolator((0, 0, 0))
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35 self.build_models()
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36 self.build_object_instances()
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39 def build_object_instances(self):
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40 self.object_instances = []
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41 for model_id, ox, oy, oz in self.stage.object_instances:
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42 self.object_instances.append((ox, oy, oz, model_id, self.models[model_id]))
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43 # Z-sorting:
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44 # TODO z-sorting may be needed at each iteration
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45 def keyfunc(obj):
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46 return obj[2] + self.stage.models[obj[3]].bounding_box[2]
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47 self.object_instances.sort(key=keyfunc, reverse=True)
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50 def build_models(self):
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51 self.models = []
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52 for obj in self.stage.models:
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53 quads = []
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54 for script_index, ox, oy, oz, width_override, height_override in obj.quads:
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55 sprite = Sprite(width_override, height_override)
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56 anm_runner = ANMRunner(self.anm_wrapper, script_index, sprite)
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57 anm_runner.run_frame()
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58 quads.append((ox, oy, oz, width_override, height_override, sprite))
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59 self.anm_runners.append(anm_runner)
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60 self.models.append(quads)
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63 def update(self, frame):
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64 for frame_num, message_type, args in self.stage.script:
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65 if self.last_frame < frame_num <= frame:
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66 if message_type == 0:
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67 self.position_interpolator.set_interpolation_start(frame_num, args)
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68 elif message_type == 1:
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69 self.fog_interpolator.set_interpolation_end_values(args)
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70 elif message_type == 2:
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71 self.position2_interpolator.set_interpolation_end_values(args)
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72 elif message_type == 3:
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73 duration, = args
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74 self.position2_interpolator.set_interpolation_end_frame(frame_num + duration)
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75 elif message_type == 4:
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76 duration, = args
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77 self.fog_interpolator.set_interpolation_end_frame(frame_num + duration)
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78 if frame_num > frame and message_type == 0:
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79 self.position_interpolator.set_interpolation_end(frame_num, args)
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80 break
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81
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82 for i in range(frame - self.last_frame):
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83 for anm_runner in tuple(self.anm_runners):
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84 if not anm_runner.run_frame():
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85 self.anm_runners.remove(anm_runner)
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87 self.position2_interpolator.update(frame)
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88 self.fog_interpolator.update(frame)
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89 self.position_interpolator.update(frame)
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91 self.last_frame = frame
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92