Mercurial > games > semicongine

annotate semiconginev2/old/resources.nim @ 1231:70f6c1cfe005

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add: incomplete cube demo
author sam <sam@basx.dev>
date Thu, 18 Jul 2024 23:48:57 +0700
parents 56781cc0fc7c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 import std/parsecfg
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2 import std/streams
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3 import std/algorithm
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4 import std/json
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5 import std/strutils
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6 import std/sequtils
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7 import std/strformat
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8 import std/os
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9 import std/sets
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10 import std/unicode
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11
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12 import ./core
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13 import ./resources/image
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14 import ./resources/audio
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15 import ./resources/mesh
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16 import ./resources/font
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17 import ./mesh
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18 import ./material
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19
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20 export image
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21 export audio
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22 export mesh
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23
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24 type
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25 ResourceBundlingType = enum
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26 Dir # Directories
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27 Zip # Zip files
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28 Exe # Embeded in executable
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29
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30 const
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31 thebundletype = parseEnum[ResourceBundlingType](PACKAGETYPE.toLowerAscii().capitalizeAscii())
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32 ASCII_CHARSET = PrintableChars.toSeq.toRunes
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33 DEFAULT_PACKAGE = "default"
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34
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35 # resource loading
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36
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37 func normalizeDir(dir: string): string =
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38 result = dir
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39 if result.startsWith("./"):
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40 result = result[2 .. ^1]
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41 if result.startsWith("/"):
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42 result = result[1 .. ^1]
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43 result = dir.replace('\\', '/')
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44 if not result.endsWith("/") and result != "":
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45 result = result & "/"
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46
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47 when thebundletype == Dir:
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48
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49 proc resourceRoot(): string =
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50 getAppDir().absolutePath().joinPath(RESOURCEROOT)
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51 proc packageRoot(package: string): string =
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52 resourceRoot().joinPath(package)
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53
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54 proc loadResource_intern(path: string, package: string): Stream =
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55 let realpath = package.packageRoot().joinPath(path)
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56 if not realpath.fileExists():
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57 raise newException(Exception, &"Resource {path} not found (checked {realpath})")
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58 newFileStream(realpath, fmRead)
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59
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60 proc modList_intern(): seq[string] =
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61 for kind, file in walkDir(resourceRoot(), relative = true):
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62 if kind == pcDir:
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63 result.add file
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64
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65 iterator walkResources_intern(dir: string, package = DEFAULT_PACKAGE): string =
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66 for file in walkDirRec(package.packageRoot().joinPath(dir), relative = true):
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67 yield file
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68
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69 iterator ls_intern(dir: string, package: string): tuple[kind: PathComponent, path: string] =
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70 for i in walkDir(package.packageRoot().joinPath(dir), relative = true):
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71 yield i
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72
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73 elif thebundletype == Zip:
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74
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75 import ./thirdparty/zippy/zippy/ziparchives
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76
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77 proc resourceRoot(): string =
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78 absolutePath(getAppDir()).joinPath(RESOURCEROOT)
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79 proc packageRoot(package: string): string =
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80 resourceRoot().joinPath(package)
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81
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82 proc loadResource_intern(path: string, package: string): Stream =
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83 let archive = openZipArchive(package.packageRoot() & ".zip")
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84 try:
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85 result = newStringStream(archive.extractFile(path))
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86 except ZippyError:
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87 raise newException(Exception, &"Resource {path} not found")
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88 archive.close()
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89
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90 proc modList_intern(): seq[string] =
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91 for kind, file in walkDir(resourceRoot(), relative = true):
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92 if kind == pcFile and file.endsWith(".zip"):
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93 result.add file[0 ..< ^4]
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94
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95 iterator walkResources_intern(dir: string, package = DEFAULT_PACKAGE): string =
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96 let archive = openZipArchive(package.packageRoot() & ".zip")
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97 let normDir = dir.normalizeDir()
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98 for i in archive.walkFiles:
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99 if i.startsWith(normDir):
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100 yield i
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101 archive.close()
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102
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103 iterator ls_intern(dir: string, package: string): tuple[kind: PathComponent, path: string] =
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104 let archive = openZipArchive(package.packageRoot() & ".zip")
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105 let normDir = dir.normalizeDir()
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106 var yielded: HashSet[string]
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107
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108 for i in archive.walkFiles:
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109 if i.startsWith(normDir):
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110 let components = i[normDir.len .. ^1].split('/', maxsplit = 1)
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111 if components.len == 1:
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112 if not (components[0] in yielded):
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113 yield (kind: pcFile, path: components[0])
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114 else:
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115 if not (components[0] in yielded):
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116 yield (kind: pcDir, path: components[0])
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117 yielded.incl components[0]
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118 archive.close()
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119
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120 elif thebundletype == Exe:
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121
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122 import std/tables
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123
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124 const BUILD_RESOURCEROOT* {.strdefine.}: string = ""
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125
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126 proc loadResources(): Table[string, Table[string, string]] {.compileTime.} =
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127 when BUILD_RESOURCEROOT == "":
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128 {.warning: "BUILD_RESOURCEROOT is empty, no resources will be packaged".}
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129 return
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130 else:
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131 for kind, packageDir in walkDir(BUILD_RESOURCEROOT):
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132 if kind == pcDir:
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133 let package = packageDir.splitPath.tail
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134 result[package] = Table[string, string]()
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135 for resourcefile in walkDirRec(packageDir, relative = true):
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136 result[package][resourcefile.replace('\\', '/')] = staticRead(packageDir.joinPath(resourcefile))
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137 const bundledResources = loadResources()
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138
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139 proc loadResource_intern(path: string, package: string): Stream =
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140 if not (path in bundledResources[package]):
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141 raise newException(Exception, &"Resource {path} not found")
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142 newStringStream(bundledResources[package][path])
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143
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144 proc modList_intern(): seq[string] =
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145 result = bundledResources.keys().toSeq()
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146
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147 iterator walkResources_intern(dir: string, package = DEFAULT_PACKAGE): string =
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148 for i in bundledResources[package].keys:
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149 yield i
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150
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151 iterator ls_intern(dir: string, package: string): tuple[kind: PathComponent, path: string] =
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152 let normDir = dir.normalizeDir()
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153 var yielded: HashSet[string]
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154
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155 for i in bundledResources[package].keys:
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156 if i.startsWith(normDir):
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157 let components = i[normDir.len .. ^1].split('/', maxsplit = 1)
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158 if components.len == 1:
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159 if not (components[0] in yielded):
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160 yield (kind: pcFile, path: components[0])
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161 else:
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162 if not (components[0] in yielded):
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163 yield (kind: pcDir, path: components[0])
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164 yielded.incl components[0]
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165
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166 proc LoadResource*(path: string, package = DEFAULT_PACKAGE): Stream =
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167 loadResource_intern(path, package = package)
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168
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169 proc LoadImage*[T](path: string, package = DEFAULT_PACKAGE): Image[RGBAPixel] =
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170 if path.splitFile().ext.toLowerAscii == ".bmp":
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171 loadResource_intern(path, package = package).ReadBMP()
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172 elif path.splitFile().ext.toLowerAscii == ".png":
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173 loadResource_intern(path, package = package).ReadPNG()
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174 else:
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175 raise newException(Exception, "Unsupported image file type: " & path)
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176
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177 proc LoadAudio*(path: string, package = DEFAULT_PACKAGE): Sound =
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178 if path.splitFile().ext.toLowerAscii == ".au":
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179 loadResource_intern(path, package = package).ReadAU()
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180 elif path.splitFile().ext.toLowerAscii == ".ogg":
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181 loadResource_intern(path, package = package).ReadVorbis()
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182 else:
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183 raise newException(Exception, "Unsupported audio file type: " & path)
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184
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185 proc LoadJson*(path: string, package = DEFAULT_PACKAGE): JsonNode =
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186 path.loadResource_intern(package = package).readAll().parseJson()
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187
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188 proc LoadConfig*(path: string, package = DEFAULT_PACKAGE): Config =
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189 path.loadResource_intern(package = package).loadConfig(filename = path)
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190
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191 proc LoadFont*(
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192 path: string,
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193 name = "",
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194 lineHeightPixels = 80'f32,
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195 additional_codepoints: openArray[Rune] = [],
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196 charset = ASCII_CHARSET,
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197 package = DEFAULT_PACKAGE
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198 ): Font =
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199 var thename = name
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200 if thename == "":
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201 thename = path.splitFile().name
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202 loadResource_intern(path, package = package).ReadTrueType(name, charset & additional_codepoints.toSeq, lineHeightPixels)
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203
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204 proc LoadMeshes*(path: string, defaultMaterial: MaterialType, package = DEFAULT_PACKAGE): seq[MeshTree] =
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205 loadResource_intern(path, package = package).ReadglTF(defaultMaterial)
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206
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207 proc LoadFirstMesh*(path: string, defaultMaterial: MaterialType, package = DEFAULT_PACKAGE): Mesh =
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208 loadResource_intern(path, package = package).ReadglTF(defaultMaterial)[0].toSeq[0]
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209
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210 proc Packages*(): seq[string] =
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211 modList_intern()
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212
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213 proc WalkResources*(dir = "", package = DEFAULT_PACKAGE): seq[string] =
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214 for i in walkResources_intern(dir, package = package):
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215 if i.startsWith(dir):
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216 result.add i
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217 result.sort()
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218
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219 proc List*(dir: string, package = DEFAULT_PACKAGE): seq[tuple[kind: PathComponent, path: string]] =
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220 for i in ls_intern(dir = dir, package = package):
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221 result.add i
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222 result.sort()