Mercurial > touhou

annotate pytouhou/resource/loader.py @ 338:65453340ae95

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Print an error when all the needed files aren’t present.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 04 Jul 2012 18:08:57 +0200
parents cddfd3cb4797
children 6d7dbcb31d95
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 from pytouhou.formats.fmt import FMT
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29
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30
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31 from pytouhou.resource.anmwrapper import AnmWrapper
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32
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33 from pytouhou.utils.helpers import get_logger
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34
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35 logger = get_logger(__name__)
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36
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37
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38
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39 class Directory(object):
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40 def __init__(self, path):
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41 self.path = path
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42
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43
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44 def __enter__(self):
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45 return self
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46
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47
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48 def __exit__(self, type, value, traceback):
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49 return False
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50
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51
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52 def list_files(self):
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53 file_list = []
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54 for path in os.listdir(self.path):
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55 if os.path.isfile(os.path.join(self.path, path)):
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56 file_list.append(path)
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57 return file_list
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58
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59
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60 def extract(self, name):
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61 with open(os.path.join(self.path, str(name)), 'rb') as file:
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62 contents = file.read()
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63 return contents
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64
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65
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66
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67 class ArchiveDescription(object):
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68 _formats = {'PBG3': PBG3}
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69
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70 def __init__(self, path, format_class, file_list=None):
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71 self.path = path
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72 self.format_class = format_class
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73 self.file_list = file_list or []
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74
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75
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76 def open(self):
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77 if self.format_class is Directory:
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78 return self.format_class(self.path)
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79
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80 file = open(self.path, 'rb')
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81 instance = self.format_class.read(file)
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82 return instance
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83
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84
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85 @classmethod
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86 def get_from_path(cls, path):
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87 if os.path.isdir(path):
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88 instance = Directory(path)
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89 file_list = instance.list_files()
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90 return cls(path, Directory, file_list)
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91 with open(path, 'rb') as file:
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92 magic = file.read(4)
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93 file.seek(0)
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94 format_class = cls._formats[magic]
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95 instance = format_class.read(file)
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96 file_list = instance.list_files()
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97 return cls(path, format_class, file_list)
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98
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99
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100
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101 class Loader(object):
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102 def __init__(self, game_dir=None):
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103 self.exe_files = []
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104 self.game_dir = game_dir
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105 self.known_files = {}
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106 self.instanced_ecls = {}
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107 self.instanced_anms = {}
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108 self.instanced_stages = {}
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109 self.instanced_msgs = {}
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110 self.instanced_shts = {}
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111 self.instanced_tracks = {}
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112 self.instanced_fmts = {}
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113
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114
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115 def scan_archives(self, paths_lists):
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116 for paths in paths_lists:
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117 def _expand_paths():
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118 for path in paths.split(os.path.pathsep):
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119 if self.game_dir and not os.path.isabs(path):
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120 path = os.path.join(self.game_dir, path)
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121 yield glob(path)
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122 paths = list(chain(*_expand_paths()))
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123 if not paths:
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124 raise IOError
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125 path = paths[0]
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126 if os.path.splitext(path)[1] == '.exe':
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127 self.exe_files.extend(paths)
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128 else:
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129 archive_description = ArchiveDescription.get_from_path(path)
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130 for name in archive_description.file_list:
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131 self.known_files[name] = archive_description
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132
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133
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134 def get_file_data(self, name):
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135 with self.known_files[name].open() as archive:
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136 content = archive.extract(name)
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137 return content
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138
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139
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140 def get_file(self, name):
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141 with self.known_files[name].open() as archive:
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142 content = archive.extract(name)
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143 return BytesIO(content)
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144
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145
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146 def get_anm(self, name):
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147 if name not in self.instanced_anms:
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148 file = self.get_file(name)
282
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149 self.instanced_anms[name] = ANM0.read(file) #TODO: modular
97
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150 return self.instanced_anms[name]
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151
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152
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153 def get_stage(self, name):
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154 if name not in self.instanced_stages:
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155 file = self.get_file(name)
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156 self.instanced_stages[name] = Stage.read(file) #TODO: modular
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157 return self.instanced_stages[name]
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158
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159
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160 def get_ecl(self, name):
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161 if name not in self.instanced_ecls:
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162 file = self.get_file(name)
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163 self.instanced_ecls[name] = ECL.read(file) #TODO: modular
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164 return self.instanced_ecls[name]
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165
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166
133
2cad2e84a49e Add reading support for the MSG format.
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167 def get_msg(self, name):
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168 if name not in self.instanced_msgs:
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169 file = self.get_file(name)
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170 self.instanced_msgs[name] = MSG.read(file) #TODO: modular
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diff changeset
171 return self.instanced_msgs[name]
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172
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diff changeset
173
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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diff changeset
174 def get_sht(self, name):
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175 if name not in self.instanced_shts:
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176 file = self.get_file(name)
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177 self.instanced_shts[name] = SHT.read(file) #TODO: modular
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178 return self.instanced_shts[name]
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179
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diff changeset
180
262
8fa660da5f0c Automatically search data files using different names.
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parents: 231
diff changeset
181 def get_eosd_characters(self):
231
c417bb6c98bf Search for 102h.exe in the game directory instead of the current directory.
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parents: 229
diff changeset
182 #TODO: Move to pytouhou.games.eosd?
298
92a6fd2632f1 Improve heuristic to filter out non-game exes (like custom.exe).
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parents: 297
diff changeset
183 for path in self.exe_files:
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diff changeset
184 try:
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diff changeset
185 with open(path, 'rb') as file:
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diff changeset
186 characters = EoSDSHT.read(file)
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diff changeset
187 return characters
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diff changeset
188 except InvalidExeException:
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diff changeset
189 pass
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diff changeset
190 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
191
5afc75f71fed Add “SHT” support to EoSD, and do a little cleanup.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 220
diff changeset
192
321
61adb5453e46 Implement music playback.
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parents: 298
diff changeset
193 def get_track(self, name):
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parents: 298
diff changeset
194 posname = name.replace('bgm/', '').replace('.mid', '.pos')
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diff changeset
195 if name not in self.instanced_tracks:
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parents: 298
diff changeset
196 file = self.get_file(posname)
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diff changeset
197 self.instanced_tracks[name] = Track.read(file) #TODO: modular
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diff changeset
198 return self.instanced_tracks[name]
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parents: 298
diff changeset
199
61adb5453e46 Implement music playback.
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parents: 298
diff changeset
200
325
cddfd3cb4797 Add music support for >PCB.
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parents: 321
diff changeset
201 def get_fmt(self, name):
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diff changeset
202 if name not in self.instanced_fmts:
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diff changeset
203 file = self.get_file(name)
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diff changeset
204 self.instanced_fmts[name] = FMT.read(file) #TODO: modular
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parents: 321
diff changeset
205 return self.instanced_fmts[name]
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diff changeset
206
cddfd3cb4797 Add music support for >PCB.
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parents: 321
diff changeset
207
285
2100276c289d Document some AnmWrapper related functions.
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parents: 282
diff changeset
208 def get_anm_wrapper(self, names, offsets=None):
2100276c289d Document some AnmWrapper related functions.
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diff changeset
209 """Create an AnmWrapper for ANM files “names”.
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diff changeset
210
2100276c289d Document some AnmWrapper related functions.
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diff changeset
211 If one of the files “names” does not exist or is not a valid ANM file,
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parents: 282
diff changeset
212 raises an exception.
2100276c289d Document some AnmWrapper related functions.
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parents: 282
diff changeset
213 """
282
dbb1a86c0235 Rename Animations to ANM0 and prepare AnmWrapper for dialogs and interface.
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diff changeset
214 return AnmWrapper((self.get_anm(name) for name in names), offsets)
97
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
215
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
216
285
2100276c289d Document some AnmWrapper related functions.
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parents: 282
diff changeset
217 def get_anm_wrapper2(self, names, offsets=None):
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parents: 282
diff changeset
218 """Create an AnmWrapper for ANM files “names”.
2100276c289d Document some AnmWrapper related functions.
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parents: 282
diff changeset
219
2100276c289d Document some AnmWrapper related functions.
Thibaut Girka <thib@sitedethib.com>
parents: 282
diff changeset
220 Stop at the first non-existent or invalid ANM file if there is one,
2100276c289d Document some AnmWrapper related functions.
Thibaut Girka <thib@sitedethib.com>
parents: 282
diff changeset
221 and return an AnmWrapper for all the previous correct files.
2100276c289d Document some AnmWrapper related functions.
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parents: 282
diff changeset
222 """
282
dbb1a86c0235 Rename Animations to ANM0 and prepare AnmWrapper for dialogs and interface.
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parents: 263
diff changeset
223 anms = []
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parents: 263
diff changeset
224
97
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
225 try:
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
226 for name in names:
282
dbb1a86c0235 Rename Animations to ANM0 and prepare AnmWrapper for dialogs and interface.
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parents: 263
diff changeset
227 anms.append(self.get_anm(name))
97
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
228 except KeyError:
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
229 pass
ac2e5e1c2c3c Refactor \o/
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parents:
diff changeset
230
282
dbb1a86c0235 Rename Animations to ANM0 and prepare AnmWrapper for dialogs and interface.
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parents: 263
diff changeset
231 return AnmWrapper(anms, offsets)
97
ac2e5e1c2c3c Refactor \o/
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
232