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annotate pytouhou/resource/loader.py @ 324:c412df42aa15

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Fix music looping
author Thibaut Girka <thib@sitedethib.com>
date Mon, 18 Jun 2012 21:16:40 +0200
parents 61adb5453e46
children cddfd3cb4797
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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285
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2012 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 import os
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16 from glob import glob
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17 from itertools import chain
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18 from io import BytesIO
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19
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20 from pytouhou.formats.pbg3 import PBG3
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21 from pytouhou.formats.std import Stage
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22 from pytouhou.formats.ecl import ECL
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23 from pytouhou.formats.anm0 import ANM0
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24 from pytouhou.formats.msg import MSG
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25 from pytouhou.formats.sht import SHT
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26 from pytouhou.formats.exe import SHT as EoSDSHT, InvalidExeException
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27 from pytouhou.formats.music import Track
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28
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29
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30 from pytouhou.resource.anmwrapper import AnmWrapper
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31
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32 from pytouhou.utils.helpers import get_logger
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33
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34 logger = get_logger(__name__)
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35
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36
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37
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38 class Directory(object):
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39 def __init__(self, path):
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40 self.path = path
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41
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42
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43 def __enter__(self):
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44 return self
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45
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46
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47 def __exit__(self, type, value, traceback):
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48 return False
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49
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50
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51 def list_files(self):
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52 file_list = []
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53 for path in os.listdir(self.path):
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54 if os.path.isfile(os.path.join(self.path, path)):
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55 file_list.append(path)
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56 return file_list
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57
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58
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59 def extract(self, name):
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60 with open(os.path.join(self.path, str(name)), 'rb') as file:
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61 contents = file.read()
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62 return contents
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63
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65
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66 class ArchiveDescription(object):
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67 _formats = {'PBG3': PBG3}
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68
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69 def __init__(self, path, format_class, file_list=None):
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70 self.path = path
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71 self.format_class = format_class
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72 self.file_list = file_list or []
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73
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74
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75 def open(self):
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76 if self.format_class is Directory:
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77 return self.format_class(self.path)
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78
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79 file = open(self.path, 'rb')
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80 instance = self.format_class.read(file)
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81 return instance
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82
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83
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84 @classmethod
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85 def get_from_path(cls, path):
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86 if os.path.isdir(path):
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87 instance = Directory(path)
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88 file_list = instance.list_files()
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89 return cls(path, Directory, file_list)
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90 with open(path, 'rb') as file:
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91 magic = file.read(4)
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92 file.seek(0)
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93 format_class = cls._formats[magic]
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94 instance = format_class.read(file)
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95 file_list = instance.list_files()
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96 return cls(path, format_class, file_list)
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97
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98
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99
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100 class Loader(object):
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101 def __init__(self, game_dir=None):
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102 self.exe_files = []
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103 self.game_dir = game_dir
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104 self.known_files = {}
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105 self.instanced_ecls = {}
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106 self.instanced_anms = {}
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107 self.instanced_stages = {}
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108 self.instanced_msgs = {}
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109 self.instanced_shts = {}
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110 self.instanced_tracks = {}
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111
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112
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113 def scan_archives(self, paths_lists):
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114 for paths in paths_lists:
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115 def _expand_paths():
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116 for path in paths.split(os.path.pathsep):
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117 if self.game_dir and not os.path.isabs(path):
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118 path = os.path.join(self.game_dir, path)
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119 yield glob(path)
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120 paths = list(chain(*_expand_paths()))
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121 path = paths[0]
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122 if os.path.splitext(path)[1] == '.exe':
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123 self.exe_files.extend(paths)
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124 else:
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125 archive_description = ArchiveDescription.get_from_path(path)
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126 for name in archive_description.file_list:
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127 self.known_files[name] = archive_description
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128
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129
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130 def get_file_data(self, name):
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131 with self.known_files[name].open() as archive:
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132 content = archive.extract(name)
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133 return content
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134
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136 def get_file(self, name):
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137 with self.known_files[name].open() as archive:
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138 content = archive.extract(name)
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139 return BytesIO(content)
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140
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141
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142 def get_anm(self, name):
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143 if name not in self.instanced_anms:
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144 file = self.get_file(name)
282
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145 self.instanced_anms[name] = ANM0.read(file) #TODO: modular
97
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146 return self.instanced_anms[name]
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147
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148
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149 def get_stage(self, name):
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150 if name not in self.instanced_stages:
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151 file = self.get_file(name)
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152 self.instanced_stages[name] = Stage.read(file) #TODO: modular
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153 return self.instanced_stages[name]
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154
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155
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156 def get_ecl(self, name):
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157 if name not in self.instanced_ecls:
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158 file = self.get_file(name)
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159 self.instanced_ecls[name] = ECL.read(file) #TODO: modular
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160 return self.instanced_ecls[name]
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161
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162
133
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163 def get_msg(self, name):
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164 if name not in self.instanced_msgs:
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165 file = self.get_file(name)
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166 self.instanced_msgs[name] = MSG.read(file) #TODO: modular
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167 return self.instanced_msgs[name]
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168
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diff changeset
169
220
0595315d3880 Fix SHT handling; change a few things to be closer to ZUN’s mind; and first stub of PCB support.
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170 def get_sht(self, name):
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171 if name not in self.instanced_shts:
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172 file = self.get_file(name)
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173 self.instanced_shts[name] = SHT.read(file) #TODO: modular
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174 return self.instanced_shts[name]
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175
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diff changeset
176
262
8fa660da5f0c Automatically search data files using different names.
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parents: 231
diff changeset
177 def get_eosd_characters(self):
231
c417bb6c98bf Search for 102h.exe in the game directory instead of the current directory.
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178 #TODO: Move to pytouhou.games.eosd?
298
92a6fd2632f1 Improve heuristic to filter out non-game exes (like custom.exe).
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diff changeset
179 for path in self.exe_files:
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diff changeset
180 try:
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diff changeset
181 with open(path, 'rb') as file:
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182 characters = EoSDSHT.read(file)
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diff changeset
183 return characters
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diff changeset
184 except InvalidExeException:
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diff changeset
185 pass
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diff changeset
186 logger.error("Required game exe not found!")
229
5afc75f71fed Add “SHT” support to EoSD, and do a little cleanup.
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parents: 220
diff changeset
187
5afc75f71fed Add “SHT” support to EoSD, and do a little cleanup.
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parents: 220
diff changeset
188
321
61adb5453e46 Implement music playback.
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parents: 298
diff changeset
189 def get_track(self, name):
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diff changeset
190 posname = name.replace('bgm/', '').replace('.mid', '.pos')
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diff changeset
191 if name not in self.instanced_tracks:
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diff changeset
192 file = self.get_file(posname)
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diff changeset
193 self.instanced_tracks[name] = Track.read(file) #TODO: modular
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diff changeset
194 return self.instanced_tracks[name]
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diff changeset
195
61adb5453e46 Implement music playback.
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diff changeset
196
285
2100276c289d Document some AnmWrapper related functions.
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diff changeset
197 def get_anm_wrapper(self, names, offsets=None):
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198 """Create an AnmWrapper for ANM files “names”.
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diff changeset
199
2100276c289d Document some AnmWrapper related functions.
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diff changeset
200 If one of the files “names” does not exist or is not a valid ANM file,
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diff changeset
201 raises an exception.
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diff changeset
202 """
282
dbb1a86c0235 Rename Animations to ANM0 and prepare AnmWrapper for dialogs and interface.
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diff changeset
203 return AnmWrapper((self.get_anm(name) for name in names), offsets)
97
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parents:
diff changeset
204
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parents:
diff changeset
205
285
2100276c289d Document some AnmWrapper related functions.
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diff changeset
206 def get_anm_wrapper2(self, names, offsets=None):
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diff changeset
207 """Create an AnmWrapper for ANM files “names”.
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diff changeset
208
2100276c289d Document some AnmWrapper related functions.
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diff changeset
209 Stop at the first non-existent or invalid ANM file if there is one,
2100276c289d Document some AnmWrapper related functions.
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diff changeset
210 and return an AnmWrapper for all the previous correct files.
2100276c289d Document some AnmWrapper related functions.
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diff changeset
211 """
282
dbb1a86c0235 Rename Animations to ANM0 and prepare AnmWrapper for dialogs and interface.
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diff changeset
212 anms = []
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diff changeset
213
97
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
214 try:
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diff changeset
215 for name in names:
282
dbb1a86c0235 Rename Animations to ANM0 and prepare AnmWrapper for dialogs and interface.
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diff changeset
216 anms.append(self.get_anm(name))
97
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
217 except KeyError:
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
218 pass
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
219
282
dbb1a86c0235 Rename Animations to ANM0 and prepare AnmWrapper for dialogs and interface.
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parents: 263
diff changeset
220 return AnmWrapper(anms, offsets)
97
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
221