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annotate semicongine/resources.nim @ 882:5392cbd9db41

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fix: material handlinge, did: formatting, add: support for multi-material texts
author Sam <sam@basx.dev>
date Mon, 29 Jan 2024 00:21:16 +0700
parents 1ee397815b0b
children 6924c2cf94e5
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1 import std/streams
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2 import std/strutils
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3 import std/sequtils
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4 import std/strformat
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5 import std/os
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6 import std/unicode
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7
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8 import ./core
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9 import ./resources/image
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10 import ./resources/audio
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11 import ./resources/mesh
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12 import ./resources/font
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13 import ./mesh
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14 import ./material
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15
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16 export image
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17 export audio
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18 export mesh
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19
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20 type
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21 ResourceBundlingType = enum
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22 Dir # Directories
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23 Zip # Zip files
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24 Exe # Embeded in executable
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25
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26 const
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27 thebundletype = parseEnum[ResourceBundlingType](BUNDLETYPE.toLowerAscii().capitalizeAscii())
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28 ASCII_CHARSET = PrintableChars.toSeq.toRunes
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29
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30 var selectedMod* = "default"
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31
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32 # resource loading
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33
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34 when thebundletype == Dir:
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35
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36 proc resourceRoot(): string =
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37 joinPath(absolutePath(getAppDir()), RESOURCEROOT)
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38 proc modRoot(): string =
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39 joinPath(resourceRoot(), selectedMod)
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40
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41 proc loadResource_intern(path: string): Stream =
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42 let realpath = joinPath(modRoot(), path)
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43 if not realpath.fileExists():
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44 raise newException(Exception, &"Resource {path} not found")
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45 newFileStream(realpath, fmRead)
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46
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47 proc modList_intern(): seq[string] =
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48 for kind, file in walkDir(resourceRoot(), relative = true):
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49 if kind == pcDir:
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50 result.add file
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51
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52 iterator walkResources_intern(): string =
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53 for file in walkDirRec(modRoot(), relative = true):
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54 yield file
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55
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56 elif thebundletype == Zip:
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57
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58 import zippy/ziparchives
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59
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60 proc resourceRoot(): string =
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61 joinPath(absolutePath(getAppDir()), RESOURCEROOT)
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62 proc modRoot(): string =
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63 joinPath(resourceRoot(), selectedMod)
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64
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65 proc loadResource_intern(path: string): Stream =
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66 if not path.fileExists():
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67 raise newException(Exception, &"Resource {path} not found")
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68 let archive = openZipArchive(modRoot() & ".zip")
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69 # read all here so we can close the stream
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70 result = newStringStream(archive.extractFile(path))
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71 archive.close()
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72
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73 proc modList_intern(): seq[string] =
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74 for kind, file in walkDir(resourceRoot(), relative = true):
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75 if kind == pcFile and file.endsWith(".zip"):
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76 result.add file[0 ..< ^4]
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77
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78 iterator walkResources_intern(): string =
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79 let archive = openZipArchive(modRoot() & ".zip")
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80 for i in archive.walkFiles:
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81 if i[^1] != '/':
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82 yield i
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83 archive.close()
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84
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85 elif thebundletype == Exe:
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86
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87 import std/compilesettings
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88 import std/tables
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89 import std/sequtils
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90
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91 proc loadResources(): Table[string, Table[string, string]] {.compileTime.} =
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92
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93 let srcdir = joinPath(parentDir(querySetting(projectFull)), RESOURCEROOT)
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94 for kind, moddir in walkDir(srcdir):
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95 if kind == pcDir:
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96 let modname = moddir.splitPath.tail
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97 result[modname] = Table[string, string]()
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98 for resourcefile in walkDirRec(moddir, relative = true):
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99 # TODO: add Lempel–Ziv–Welch compression or something similar simple
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100 result[modname][resourcefile] = staticRead(joinPath(moddir, resourcefile))
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101 const bundledResources = loadResources()
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102
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103 proc loadResource_intern(path: string): Stream =
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104 if not (path in bundledResources[selectedMod]):
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105 raise newException(Exception, &"Resource {path} not found")
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106 newStringStream(bundledResources[selectedMod][path])
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107
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108 proc modList_intern(): seq[string] =
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109 result = bundledResources.keys().toSeq()
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110
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111 iterator walkResources_intern(): string =
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112 for i in bundledResources[selectedMod].keys:
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113 yield i
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114
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115 proc loadResource*(path: string): Stream =
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116 loadResource_intern(path)
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117
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118 proc loadImage*[T](path: string): Image[RGBAPixel] =
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119 if path.splitFile().ext.toLowerAscii == ".bmp":
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120 loadResource_intern(path).readBMP()
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121 elif path.splitFile().ext.toLowerAscii == ".png":
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122 loadResource_intern(path).readPNG()
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123 else:
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124 raise newException(Exception, "Unsupported image file type: " & path)
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125
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126 proc loadAudio*(path: string): Sound =
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127 if path.splitFile().ext.toLowerAscii == ".au":
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128 loadResource_intern(path).readAU()
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129 elif path.splitFile().ext.toLowerAscii == ".ogg":
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130 loadResource_intern(path).readVorbis()
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131 else:
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132 raise newException(Exception, "Unsupported audio file type: " & path)
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133
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134 proc loadFont*(
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135 path: string,
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136 name = "",
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137 lineHeightPixels = 80'f32,
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138 additional_codepoints: openArray[Rune] = [],
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139 charset = ASCII_CHARSET
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140 ): Font =
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141 var thename = name
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142 if thename == "":
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143 thename = path.splitFile().name
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144 loadResource_intern(path).readTrueType(name, charset & additional_codepoints.toSeq, lineHeightPixels)
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145
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146 proc loadMeshes*(path: string, defaultMaterial: MaterialType): seq[MeshTree] =
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147 loadResource_intern(path).readglTF(defaultMaterial)
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148
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149 proc loadFirstMesh*(path: string, defaultMaterial: MaterialType): Mesh =
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150 loadResource_intern(path).readglTF(defaultMaterial)[0].toSeq[0]
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151
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152 proc modList*(): seq[string] =
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153 modList_intern()
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154
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155 iterator walkResources*(dir = ""): string =
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156 for i in walkResources_intern():
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Sam <sam@basx.dev>
parents:
diff changeset
157 if i.startsWith(dir):
44ec744fbedc did: package restructuring according to nimble recommendation for libraries
Sam <sam@basx.dev>
parents:
diff changeset
158 yield i