Bump version to 3.9.12

.rubocop.yml

@@ -0,0 +1,42 @@
+AllCops:
+  TargetRubyVersion: 2.6
+
+Metrics/AbcSize:
+  Max: 170
+
+Metrics/BlockLength:
+  Max: 250
+
+Metrics/ClassLength:
+  Max: 1000
+
+Metrics/CyclomaticComplexity:
+  Max: 70
+
+Metrics/MethodLength:
+  Max: 100
+
+Metrics/ModuleLength:
+  Max: 1000
+
+Metrics/ParameterLists:
+  Max: 50
+
+Metrics/PerceivedComplexity:
+  Max: 80
+
+Layout/SpaceInsideBlockBraces:
+  EnforcedStyle: no_space
+  SpaceBeforeBlockParameters: false
+
+Style/Documentation:
+  Enabled: false
+
+Style/NumericPredicate:
+  EnforcedStyle: comparison
+
+Style/MultilineBlockChain:
+  Enabled: false
+
+Style/SpecialGlobalVars:
+  EnforcedStyle: use_perl_names

README.md

@@ -244,7 +244,8 @@ Available options:
 
 - [json](https://rubygems.org/gems/json)
 - [extlz4](https://rubygems.org/gems/extlz4)
-- [extlzma](https://rubygems.org/gems/extlzma)
+- [extlzma2](https://rubygems.org/gems/extlzma2)
+  - extlzma2 requires liblzma. You may need a `--with-liblzma-dir=` argument to install extlzma2.
 - [bin_utils](https://rubygems.org/gems/bin_utils)
 - [chunky_png](https://rubygems.org/gems/chunky_png)
 

Rakefile

@@ -13,10 +13,10 @@ ext_dirs = %w[decoders/native decoders/crunch]
 
 ext_dirs.each do |dir|
   Rake::ExtensionTask.new(dir) do |ext|
-    ext.lib_dir = 'lib/mikunyan'
+    ext.lib_dir = "lib/mikunyan/#{File.dirname(dir)}"
   end
 end
 
-task compile: ext_dirs.map{|e| "compile:#{e}".to_sym}
+task compile: ext_dirs.map {|e| "compile:#{e}".to_sym}
 
 task default: %i[clobber compile spec]

ext/decoders/crunch/extconf.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'mkmf'
 
 have_library('stdc++')
@@ -6,4 +8,5 @@ append_cppflags('-O2')
 append_cppflags('-Wall')
 append_cppflags('-Wextra')
 append_cppflags('-Wvla')
+
 create_makefile('mikunyan/decoders/crunch')

ext/decoders/native/extconf.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'mkmf'
 
 append_cppflags('-std=c11')
@@ -5,4 +7,5 @@ append_cppflags('-O2')
 append_cppflags('-Wall')
 append_cppflags('-Wextra')
 append_cppflags('-Wvla')
+
 create_makefile('mikunyan/decoders/native')

lib/mikunyan/asset.rb

@@ -120,8 +120,10 @@ module Mikunyan
     def containers
       obj = @path_id_table[1]
       return nil unless obj.klass&.type_tree&.tree&.type == 'AssetBundle'
+
       parse_object(obj).m_Container.value.map do |e|
-        ContainerInfo.new(e.first.value, e.second.preloadIndex.value, e.second.preloadSize.value, e.second.asset.m_FileID.value, e.second.asset.m_PathID.value)
+        ContainerInfo.new(e.first.value, e.second.preloadIndex.value, e.second.preloadSize.value,
+                          e.second.asset.m_FileID.value, e.second.asset.m_PathID.value)
       end
     end
 
@@ -129,8 +131,9 @@ module Mikunyan
     # @param [Integer,ObjectEntry] obj path ID or object
     # @return [Mikunyan::BaseObject,nil] parsed object
     def parse_object(obj)
-      obj = @path_id_table[obj] if obj.class == Integer
+      obj = @path_id_table[obj] if obj.instance_of?(Integer)
       return nil unless obj.klass&.type_tree
+
       value_klass = Mikunyan::CustomTypes.get_custom_type(obj.klass.type_tree.tree.type, obj.class_id)
       ret = parse_object_private(BinaryReader.new(obj.data, @endian), obj.klass.type_tree.tree, value_klass)
       ret.object_entry = obj
@@ -148,7 +151,7 @@ module Mikunyan
     # @param [Integer,ObjectEntry] obj path ID or object
     # @return [String,nil] type name
     def object_type(obj)
-      obj = @path_id_table[obj] if obj.class == Integer
+      obj = @path_id_table[obj] if obj.instance_of?(Integer)
       obj&.type
     end
 
@@ -226,7 +229,7 @@ module Mikunyan
         end
       end
 
-      @path_id_table = @objects.map{|e| [e.path_id, e]}.to_h
+      @path_id_table = @objects.map {|e| [e.path_id, e]}.to_h
 
       if @format >= 11
         add_id_count = br.i32u
@@ -238,7 +241,8 @@ module Mikunyan
 
       reference_count = br.i32u
       @references = Array.new(reference_count) do
-        Reference.new(@format >= 6 ? br.cstr : nil, @format >= 5 ? br.read(16) : nil, @format >= 5 ? br.i32s : nil, br.cstr)
+        Reference.new(@format >= 6 ? br.cstr : nil, @format >= 5 ? br.read(16) : nil, @format >= 5 ? br.i32s : nil,
+                      br.cstr)
       end
 
       @comment = br.cstr if @format >= 5
@@ -247,7 +251,11 @@ module Mikunyan
       @objects.each do |e|
         br.jmp(data_offset + e.offset)
         e.data = br.read(e.size)
-        e.klass = e.class_idx ? @klasses[e.class_idx] : @klasses.find{|e2| e2.class_id == e.class_id} || @klasses.find{|e2| e2.class_id == e.type_id}
+        e.klass = if e.class_idx
+                    @klasses[e.class_idx]
+                  else
+                    @klasses.find {|e2| e2.class_id == e.class_id} || @klasses.find {|e2| e2.class_id == e.type_id}
+                  end
       end
     end
 
@@ -290,6 +298,7 @@ module Mikunyan
       elsif node.array?
         children.each do |child|
           next ret[child.name] = parse_object_private(br, child) unless child.name == 'data'
+
           size = ret['size']&.value || raise('`size` node must appear before `data` node in array node')
           ret.value =
             if child.children.empty? && (!child.need_align? || br.pos % 4 == 0 && child.size % 4 == 0)
@@ -300,7 +309,7 @@ module Mikunyan
                 br.read(size * child.size).force_encoding('utf-8')
               end
             end
-          ret.value ||= Array.new(size){parse_object_private(br, child)}
+          ret.value ||= Array.new(size) {parse_object_private(br, child)}
           ret['data'] = ret.value
         end
       elsif children.size == 1 && children[0].array? && children[0].type == 'Array' && children[0].name == 'Array'
@@ -308,7 +317,7 @@ module Mikunyan
         ret.name = node.name
         ret.type = node.type
       else
-        ret.attr = children.map{|c| [c.name, parse_object_private(br, c)]}.to_h
+        ret.attr = children.map {|c| [c.name, parse_object_private(br, c)]}.to_h
         if node.type == 'StreamingInfo'
           ret.value = get_stream_blob(ret['path'].value, ret['offset'].value, ret['size'].value)
         else
@@ -322,6 +331,7 @@ module Mikunyan
     def get_stream_blob(path, offset, size)
       return nil unless path && @bundle
       return nil if path.empty?
+
       path["archive:/#{@name}/"] = '' if path.start_with?("archive:/#{@name}/")
       @bundle.blobs[path]&.byteslice(offset, size)
     end

lib/mikunyan/asset_bundle.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 require 'extlz4'
-require 'extlzma'
+require 'extlzma2'
 require 'mikunyan/asset'
 require 'mikunyan/binary_reader'
 
@@ -21,7 +21,7 @@ module Mikunyan
     # @param [String,Integer] index
     # @return [Mikunyan::Asset,nil]
     def [](index)
-      index.is_a?(String) ? @assets.find{|e| e.name == index} : @assets[index]
+      index.is_a?(String) ? @assets.find {|e| e.name == index} : @assets[index]
     end
 
     # Same as assets.each
@@ -59,7 +59,7 @@ module Mikunyan
       @unity_version = br.cstr
       @generator_version = br.cstr
 
-      @format < 6 ? load_unity_raw(br) : load_unity_fs(br)
+      @format == 6 || @signature == 'UnityFS' ? load_unity_fs(br, @signature) : load_unity_raw(br)
     end
 
     # @param [Mikunyan::BinaryReader] br
@@ -86,17 +86,22 @@ module Mikunyan
     end
 
     # @param [Mikunyan::BinaryReader] br
-    def load_unity_fs(br)
+    def load_unity_fs(br, signature)
       file_size = br.i64u
       ci_block_size = br.i32u
       ui_block_size = br.i32u
       flags = br.i32u
 
+      br.adv(1) unless signature == 'UnityFS'
+
       br.align(16) if @format >= 7
 
-      head = BinaryReader.new(uncompress(flags & 0x80 == 0 ? br.read(ci_block_size) : br.read_abs(ci_block_size, file_size - ci_block_size), ui_block_size, flags))
+      head_bin = flags & 0x80 == 0 ? br.read(ci_block_size) : br.read_abs(ci_block_size, file_size - ci_block_size)
+      head = BinaryReader.new(uncompress(head_bin, ui_block_size, flags))
       @guid = head.read(16)
 
+      br.align(16) unless flags & 0x200 == 0
+
       block_count = head.i32u
       raw_data = Array.new(block_count) do
         u_size = head.i32u
@@ -116,7 +121,7 @@ module Mikunyan
     end
 
     def process_asset_entries(asset_entries)
-      @blobs = asset_entries.select(&:blob?).map{|e| [e.name, e.data]}.to_h
+      @blobs = asset_entries.select(&:blob?).map {|e| [e.name, e.data]}.to_h
       @assets = asset_entries.reject(&:blob?).map do |e|
         Asset.load(e.data, e.name, self)
       end

lib/mikunyan/binary_reader.rb

@@ -56,6 +56,7 @@ module Mikunyan
     def read(size)
       ret = @io.read(size)
       raise EOFError if ret.nil? || size && ret.bytesize < size
+
       ret
     end
 
@@ -75,6 +76,7 @@ module Mikunyan
     # @return [String] string
     def cstr
       raise EOFError if @io.eof?
+
       @io.each_byte.take_while(&:nonzero?).pack('C*')
     end
 

lib/mikunyan/constants.rb

@@ -416,91 +416,91 @@ module Mikunyan
       [1126, 'PackedAssets'],
       [1127, 'VideoClipImporter'],
       [2000, 'ActivationLogComponent'],
-      [100000, 'int'],
-      [100001, 'bool'],
-      [100002, 'float'],
-      [100003, 'MonoObject'],
-      [100004, 'Collision'],
-      [100005, 'Vector3f'],
-      [100006, 'RootMotionData'],
-      [100007, 'Collision2D'],
-      [100008, 'AudioMixerLiveUpdateFloat'],
-      [100009, 'AudioMixerLiveUpdateBool'],
-      [100010, 'Polygon2D'],
-      [100011, 'void'],
-      [19719996, 'TilemapCollider2D'],
-      [41386430, 'AssetImporterLog'],
-      [73398921, 'VFXRenderer'],
-      [76251197, 'SerializableManagedRefTestClass'],
-      [156049354, 'Grid'],
-      [181963792, 'Preset'],
-      [277625683, 'EmptyObject'],
-      [285090594, 'IConstraint'],
-      [293259124, 'TestObjectWithSpecialLayoutOne'],
-      [294290339, 'AssemblyDefinitionReferenceImporter'],
-      [334799969, 'SiblingDerived'],
-      [342846651, 'TestObjectWithSerializedMapStringNonAlignedStruct'],
-      [367388927, 'SubDerived'],
-      [369655926, 'AssetImportInProgressProxy'],
-      [382020655, 'PluginBuildInfo'],
-      [426301858, 'EditorProjectAccess'],
-      [468431735, 'PrefabImporter'],
-      [478637458, 'TestObjectWithSerializedArray'],
-      [478637459, 'TestObjectWithSerializedAnimationCurve'],
-      [483693784, 'TilemapRenderer'],
-      [638013454, 'SpriteAtlasDatabase'],
-      [641289076, 'AudioBuildInfo'],
-      [644342135, 'CachedSpriteAtlasRuntimeData'],
-      [646504946, 'RendererFake'],
-      [662584278, 'AssemblyDefinitionReferenceAsset'],
-      [668709126, 'BuiltAssetBundleInfoSet'],
-      [687078895, 'SpriteAtlas'],
-      [877146078, 'PlatformModuleSetup'],
-      [895512359, 'AimConstraint'],
-      [937362698, 'VFXManager'],
-      [994735392, 'VisualEffectSubgraph'],
-      [994735403, 'VisualEffectSubgraphOperator'],
-      [994735404, 'VisualEffectSubgraphBlock'],
-      [1001480554, 'Prefab'],
-      [1027052791, 'LocalizationImporter'],
-      [1091556383, 'Derived'],
-      [1111377672, 'PropertyModificationsTargetTestObject'],
-      [1114811875, 'ReferencesArtifactGenerator'],
-      [1152215463, 'AssemblyDefinitionAsset'],
-      [1154873562, 'SceneVisibilityState'],
-      [1183024399, 'LookAtConstraint'],
-      [1223240404, 'MultiArtifactTestImporter'],
-      [1268269756, 'GameObjectRecorder'],
-      [1325145578, 'LightingDataAssetParent'],
-      [1386491679, 'PresetManager'],
-      [1392443030, 'TestObjectWithSpecialLayoutTwo'],
-      [1403656975, 'StreamingManager'],
-      [1480428607, 'LowerResBlitTexture'],
-      [1542919678, 'StreamingController'],
-      [1571458007, 'RenderPassAttachment'],
-      [1628831178, 'TestObjectVectorPairStringBool'],
-      [1742807556, 'GridLayout'],
-      [1766753193, 'AssemblyDefinitionImporter'],
-      [1773428102, 'ParentConstraint'],
-      [1803986026, 'FakeComponent'],
-      [1818360608, 'PositionConstraint'],
-      [1818360609, 'RotationConstraint'],
-      [1818360610, 'ScaleConstraint'],
-      [1839735485, 'Tilemap'],
-      [1896753125, 'PackageManifest'],
-      [1896753126, 'PackageManifestImporter'],
-      [1953259897, 'TerrainLayer'],
-      [1971053207, 'SpriteShapeRenderer'],
-      [1977754360, 'NativeObjectType'],
-      [1981279845, 'TestObjectWithSerializedMapStringBool'],
-      [1995898324, 'SerializableManagedHost'],
-      [2058629509, 'VisualEffectAsset'],
-      [2058629510, 'VisualEffectImporter'],
-      [2058629511, 'VisualEffectResource'],
-      [2059678085, 'VisualEffectObject'],
-      [2083052967, 'VisualEffect'],
-      [2083778819, 'LocalizationAsset'],
-      [2089858483, 'ScriptedImporter']
+      [100_000, 'int'],
+      [100_001, 'bool'],
+      [100_002, 'float'],
+      [100_003, 'MonoObject'],
+      [100_004, 'Collision'],
+      [100_005, 'Vector3f'],
+      [100_006, 'RootMotionData'],
+      [100_007, 'Collision2D'],
+      [100_008, 'AudioMixerLiveUpdateFloat'],
+      [100_009, 'AudioMixerLiveUpdateBool'],
+      [100_010, 'Polygon2D'],
+      [100_011, 'void'],
+      [19_719_996, 'TilemapCollider2D'],
+      [41_386_430, 'AssetImporterLog'],
+      [73_398_921, 'VFXRenderer'],
+      [76_251_197, 'SerializableManagedRefTestClass'],
+      [156_049_354, 'Grid'],
+      [181_963_792, 'Preset'],
+      [277_625_683, 'EmptyObject'],
+      [285_090_594, 'IConstraint'],
+      [293_259_124, 'TestObjectWithSpecialLayoutOne'],
+      [294_290_339, 'AssemblyDefinitionReferenceImporter'],
+      [334_799_969, 'SiblingDerived'],
+      [342_846_651, 'TestObjectWithSerializedMapStringNonAlignedStruct'],
+      [367_388_927, 'SubDerived'],
+      [369_655_926, 'AssetImportInProgressProxy'],
+      [382_020_655, 'PluginBuildInfo'],
+      [426_301_858, 'EditorProjectAccess'],
+      [468_431_735, 'PrefabImporter'],
+      [478_637_458, 'TestObjectWithSerializedArray'],
+      [478_637_459, 'TestObjectWithSerializedAnimationCurve'],
+      [483_693_784, 'TilemapRenderer'],
+      [638_013_454, 'SpriteAtlasDatabase'],
+      [641_289_076, 'AudioBuildInfo'],
+      [644_342_135, 'CachedSpriteAtlasRuntimeData'],
+      [646_504_946, 'RendererFake'],
+      [662_584_278, 'AssemblyDefinitionReferenceAsset'],
+      [668_709_126, 'BuiltAssetBundleInfoSet'],
+      [687_078_895, 'SpriteAtlas'],
+      [877_146_078, 'PlatformModuleSetup'],
+      [895_512_359, 'AimConstraint'],
+      [937_362_698, 'VFXManager'],
+      [994_735_392, 'VisualEffectSubgraph'],
+      [994_735_403, 'VisualEffectSubgraphOperator'],
+      [994_735_404, 'VisualEffectSubgraphBlock'],
+      [1_001_480_554, 'Prefab'],
+      [1_027_052_791, 'LocalizationImporter'],
+      [1_091_556_383, 'Derived'],
+      [1_111_377_672, 'PropertyModificationsTargetTestObject'],
+      [1_114_811_875, 'ReferencesArtifactGenerator'],
+      [1_152_215_463, 'AssemblyDefinitionAsset'],
+      [1_154_873_562, 'SceneVisibilityState'],
+      [1_183_024_399, 'LookAtConstraint'],
+      [1_223_240_404, 'MultiArtifactTestImporter'],
+      [1_268_269_756, 'GameObjectRecorder'],
+      [1_325_145_578, 'LightingDataAssetParent'],
+      [1_386_491_679, 'PresetManager'],
+      [1_392_443_030, 'TestObjectWithSpecialLayoutTwo'],
+      [1_403_656_975, 'StreamingManager'],
+      [1_480_428_607, 'LowerResBlitTexture'],
+      [1_542_919_678, 'StreamingController'],
+      [1_571_458_007, 'RenderPassAttachment'],
+      [1_628_831_178, 'TestObjectVectorPairStringBool'],
+      [1_742_807_556, 'GridLayout'],
+      [1_766_753_193, 'AssemblyDefinitionImporter'],
+      [1_773_428_102, 'ParentConstraint'],
+      [1_803_986_026, 'FakeComponent'],
+      [1_818_360_608, 'PositionConstraint'],
+      [1_818_360_609, 'RotationConstraint'],
+      [1_818_360_610, 'ScaleConstraint'],
+      [1_839_735_485, 'Tilemap'],
+      [1_896_753_125, 'PackageManifest'],
+      [1_896_753_126, 'PackageManifestImporter'],
+      [1_953_259_897, 'TerrainLayer'],
+      [1_971_053_207, 'SpriteShapeRenderer'],
+      [1_977_754_360, 'NativeObjectType'],
+      [1_981_279_845, 'TestObjectWithSerializedMapStringBool'],
+      [1_995_898_324, 'SerializableManagedHost'],
+      [2_058_629_509, 'VisualEffectAsset'],
+      [2_058_629_510, 'VisualEffectImporter'],
+      [2_058_629_511, 'VisualEffectResource'],
+      [2_059_678_085, 'VisualEffectObject'],
+      [2_083_052_967, 'VisualEffect'],
+      [2_083_778_819, 'LocalizationAsset'],
+      [2_089_858_483, 'ScriptedImporter']
     ]
 
     CLASS_ID2NAME = CLASS_ID_TABLE.to_h.freeze

lib/mikunyan/decoders/image_decoder.rb

@@ -187,7 +187,8 @@ module Mikunyan
       # @param [Symbol] endian endianness of binary
       # @return [ChunkyPNG::Image] decoded image
       def self.decode_rgb565(width, height, bin, endian = :big)
-        ChunkyPNG::Image.from_rgb_stream(width, height, DecodeHelper.decode_rgb565(bin, width * height, endian == :big)).flip
+        ChunkyPNG::Image.from_rgb_stream(width, height,
+                                         DecodeHelper.decode_rgb565(bin, width * height, endian == :big)).flip
       end
 
       # Decode image from R16 binary
@@ -197,7 +198,8 @@ module Mikunyan
       # @param [Symbol] endian endianness of binary
       # @return [ChunkyPNG::Image] decoded image
       def self.decode_r16(width, height, bin, endian = :big)
-        ChunkyPNG::Image.from_rgb_stream(width, height, DecodeHelper.decode_r16(bin, width * height, endian == :big)).flip
+        ChunkyPNG::Image.from_rgb_stream(width, height,
+                                         DecodeHelper.decode_r16(bin, width * height, endian == :big)).flip
       end
 
       # Decode image from RGBA4444 binary
@@ -270,7 +272,8 @@ module Mikunyan
       # @param [Symbol] endian endianness of binary
       # @return [ChunkyPNG::Image] decoded image
       def self.decode_rhalf(width, height, bin, endian = :big)
-        ChunkyPNG::Image.from_rgb_stream(width, height, DecodeHelper.decode_rhalf(bin, width * height, endian == :big)).flip
+        ChunkyPNG::Image.from_rgb_stream(width, height,
+                                         DecodeHelper.decode_rhalf(bin, width * height, endian == :big)).flip
       end
 
       # Decode image from RG Half-float binary
@@ -280,7 +283,8 @@ module Mikunyan
       # @param [Symbol] endian endianness of binary
       # @return [ChunkyPNG::Image] decoded image
       def self.decode_rghalf(width, height, bin, endian = :big)
-        ChunkyPNG::Image.from_rgb_stream(width, height, DecodeHelper.decode_rghalf(bin, width * height, endian == :big)).flip
+        ChunkyPNG::Image.from_rgb_stream(width, height,
+                                         DecodeHelper.decode_rghalf(bin, width * height, endian == :big)).flip
       end
 
       # Decode image from RGBA Half-float binary
@@ -290,7 +294,8 @@ module Mikunyan
       # @param [Symbol] endian endianness of binary
       # @return [ChunkyPNG::Image] decoded image
       def self.decode_rgbahalf(width, height, bin, endian = :big)
-        ChunkyPNG::Image.from_rgba_stream(width, height, DecodeHelper.decode_rgbahalf(bin, width * height, endian == :big)).flip
+        ChunkyPNG::Image.from_rgba_stream(width, height,
+                                          DecodeHelper.decode_rgbahalf(bin, width * height, endian == :big)).flip
       end
 
       # Decode image from R float binary
@@ -366,7 +371,8 @@ module Mikunyan
       # @param [Integer] bpp bit per pixel (2 or 4)
       # @return [ChunkyPNG::Image] decoded image
       def self.decode_pvrtc1(width, height, bin, bpp)
-        raise 'bpp of PVRTC1 must be 2 or 4' unless bpp == 2 || bpp == 4
+        raise 'bpp of PVRTC1 must be 2 or 4' unless [2, 4].include?(bpp)
+
         ChunkyPNG::Image.from_rgba_stream(width, height, DecodeHelper.decode_pvrtc1(bin, width, height, bpp == 2))
       end
 
@@ -449,7 +455,8 @@ module Mikunyan
       # @param [String] bin binary to decode
       # @return [ChunkyPNG::Image] decoded image
       def self.decode_astc(width, height, blocksize, bin)
-        ChunkyPNG::Image.from_rgba_stream(width, height, DecodeHelper.decode_astc(bin, width, height, blocksize, blocksize))
+        ChunkyPNG::Image.from_rgba_stream(width, height,
+                                          DecodeHelper.decode_astc(bin, width, height, blocksize, blocksize))
       end
 
       # Decode image from crunched texture binary
@@ -488,8 +495,10 @@ module Mikunyan
         fmt = object['m_TextureFormat']&.value
         bin = object['image data']&.value
         return unless width && height && fmt && bin && astc_list[fmt]
+
         bin = object['m_StreamData']&.value if bin.empty?
         return unless bin
+
         header = [0x13, 0xab, 0xa1, 0x5c, astc_list[fmt], astc_list[fmt], 1].pack('C*')
         header << [width].pack('V').byteslice(0, 3)
         header << [height].pack('V').byteslice(0, 3)
@@ -500,6 +509,7 @@ module Mikunyan
       # [0.0,1.0] -> [0,255]
       def self.f2i(val)
         return 0 unless val.finite?
+
         (val * 255).round.clamp(0, 255)
       end
     end

lib/mikunyan/object_value.rb

@@ -95,11 +95,11 @@ module Mikunyan
       if @type == 'pair'
         [@attr['first'].simplify, @attr['second'].simplify]
       elsif @type == 'map' && @value.is_a?(Array)
-        @value.map{|e| [e['first'].simplify, e['second'].simplify]}.to_h
+        @value.map {|e| [e['first'].simplify, e['second'].simplify]}.to_h
       elsif is_struct
-        @attr.map{|key, val| [key, val.simplify]}.to_h
+        @attr.transform_values(&:simplify)
       elsif @value.is_a?(Array)
-        @value.map{|e| e.is_a?(ObjectValue) ? e.simplify : e}
+        @value.map {|e| e.is_a?(ObjectValue) ? e.simplify : e}
       elsif @value.is_a?(ObjectValue)
         @value.simplify
       else

lib/mikunyan/type_tree.rb

@@ -20,7 +20,8 @@ module Mikunyan
     # @attr [Integer,nil] v18meta
     # @attr [Mikunyan::TypeTree::Node,nil] parent ̑
     # @attr [Array<Mikunyan::TypeTree::Node>] children
-    Node = Struct.new(:version, :level, :array?, :type, :name, :size, :index, :flags, :v18meta, :parent, :children, keyword_init: true) do
+    Node = Struct.new(:version, :level, :array?, :type, :name, :size, :index, :flags, :v18meta, :parent, :children,
+                      keyword_init: true) do
       def need_align?
         flags & 0x4000 != 0
       end
@@ -119,6 +120,7 @@ module Mikunyan
     def self.load_default(class_id, hash)
       file = File.expand_path("../typetrees/#{class_id}/#{hash.unpack1('H*')}.json", __FILE__)
       return nil unless File.file?(file)
+
       TypeTree.deserialize(JSON.parse(File.read(file)))
     end
 

lib/mikunyan/typetrees/196/306f0c2739dc8ad54fb4a1a44d1a3880.json

@@ -0,0 +1 @@
+{"nodes":[{"version":2,"level":0,"is_array":false,"type":"NavMeshSettings","name":"Base","size":12,"flags":0,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"PPtr<NavMeshData>","name":"m_NavMeshData","size":12,"flags":0,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":8388609,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":8388609,"v18meta":0}]}

lib/mikunyan/typetrees/224/d9e332c3489a006624c0d275596da91f.json

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lib/mikunyan/typetrees/4/54a1e3fa2ed21bd55841935600d82554.json

@@ -0,0 +1 @@
+{"nodes":[{"version":1,"level":0,"is_array":false,"type":"Transform","name":"Base","size":-1,"flags":32768,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"PPtr<GameObject>","name":"m_GameObject","size":12,"flags":65,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":65,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":65,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"Quaternionf","name":"m_LocalRotation","size":16,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"x","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"y","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"z","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"w","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"Vector3f","name":"m_LocalPosition","size":12,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"x","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"y","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"z","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"Vector3f","name":"m_LocalScale","size":12,"flags":2113536,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"x","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"y","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"z","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"vector","name":"m_Children","size":-1,"flags":32833,"v18meta":0},{"version":1,"level":2,"is_array":true,"type":"Array","name":"Array","size":-1,"flags":16449,"v18meta":0},{"version":1,"level":3,"is_array":false,"type":"int","name":"size","size":4,"flags":65,"v18meta":0},{"version":1,"level":3,"is_array":false,"type":"PPtr<Transform>","name":"data","size":12,"flags":65,"v18meta":0},{"version":1,"level":4,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":65,"v18meta":0},{"version":1,"level":4,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":65,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"PPtr<Transform>","name":"m_Father","size":12,"flags":1,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":1,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":1,"v18meta":0}]}

lib/mikunyan/typetrees/58/873857af69494adbdb73031ba368ec03.json

@@ -0,0 +1 @@
+{"nodes":[{"version":2,"level":0,"is_array":false,"type":"CircleCollider2D","name":"Base","size":44,"flags":32768,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"PPtr<GameObject>","name":"m_GameObject","size":12,"flags":65,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":65,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":65,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"UInt8","name":"m_Enabled","size":1,"flags":16641,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"float","name":"m_Density","size":4,"flags":0,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"PPtr<PhysicsMaterial2D>","name":"m_Material","size":12,"flags":0,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":8388609,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":8388609,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_IsTrigger","size":1,"flags":0,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_UsedByEffector","size":1,"flags":0,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_UsedByComposite","size":1,"flags":8404992,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"Vector2f","name":"m_Offset","size":8,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"x","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"float","name":"y","size":4,"flags":2097152,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"float","name":"m_Radius","size":4,"flags":0,"v18meta":0}]}

lib/mikunyan/typetrees/84/4a10b5c8ca310ff8976d3373dd4e114f.json

@@ -0,0 +1 @@
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lib/mikunyan/typetrees/850595691/3be064824bfa1bf068c6697a98793144.json

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lib/mikunyan/typetrees/850595691/5e9bfc993e74efde8bb9081817c5926a.json

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lib/mikunyan/typetrees/95/157ac76304440e8dd2945b36b049d91c.json

@@ -0,0 +1 @@
+{"nodes":[{"version":5,"level":0,"is_array":false,"type":"Animator","name":"Base","size":52,"flags":32768,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"PPtr<GameObject>","name":"m_GameObject","size":12,"flags":65,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":65,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":65,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"UInt8","name":"m_Enabled","size":1,"flags":16641,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"PPtr<Avatar>","name":"m_Avatar","size":12,"flags":0,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":8388609,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":8388609,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"PPtr<RuntimeAnimatorController>","name":"m_Controller","size":12,"flags":0,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"int","name":"m_FileID","size":4,"flags":8388609,"v18meta":0},{"version":1,"level":2,"is_array":false,"type":"SInt64","name":"m_PathID","size":8,"flags":8388609,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"int","name":"m_CullingMode","size":4,"flags":0,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"int","name":"m_UpdateMode","size":4,"flags":0,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_ApplyRootMotion","size":1,"flags":8388608,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_LinearVelocityBlending","size":1,"flags":8388608,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_StabilizeFeet","size":1,"flags":8404992,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_HasTransformHierarchy","size":1,"flags":8388608,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_AllowConstantClipSamplingOptimization","size":1,"flags":8388608,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_KeepAnimatorStateOnDisable","size":1,"flags":8388608,"v18meta":0},{"version":1,"level":1,"is_array":false,"type":"bool","name":"m_WriteDefaultValuesOnDisable","size":1,"flags":8404992,"v18meta":0}]}

lib/mikunyan/version.rb

@@ -2,5 +2,5 @@
 
 module Mikunyan
   # version string
-  VERSION = '3.9.9'
+  VERSION = '3.9.12'
 end

mikunyan.gemspec

@@ -14,20 +14,20 @@ Gem::Specification.new do |spec|
   spec.description   = 'Library to deserialize Unity assetbundles and assets.'
   spec.homepage      = 'https://github.com/Ishotihadus/mikunyan'
   spec.license       = 'MIT'
+  spec.required_ruby_version = '>= 2.6.0'
 
-  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
+  spec.files = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(test|spec|features)/})
   end
   spec.bindir        = 'exe'
-  spec.executables   = spec.files.grep(%r{^exe/}){|f| File.basename(f)}
+  spec.executables   = spec.files.grep(%r{^exe/}) {|f| File.basename(f)}
   spec.require_paths = ['lib']
   spec.extensions    = ['ext/decoders/native/extconf.rb', 'ext/decoders/crunch/extconf.rb']
 
   spec.add_dependency 'bin_utils', '~> 0'
   spec.add_dependency 'chunky_png', '~> 1'
   spec.add_dependency 'extlz4', '~> 0'
-  spec.add_dependency 'extlzma', '~> 0'
-  spec.add_dependency 'json', '~> 2'
+  spec.add_dependency 'extlzma2', '~> 2'
 
   spec.add_development_dependency 'bundler', '~> 2'
   spec.add_development_dependency 'oily_png', '~> 1'