Compatible with Unity 6

app/build.gradle

@@ -16,7 +16,7 @@ android {
         minSdk 29
         targetSdk 34
         versionCode 12
-        versionName "v3.3.1"
+        versionName "v3.4.0"
         buildConfigField "String", "VERSION_NAME", "\"${versionName}\""
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

app/src/main/cpp/GakumasLocalify/Hook.cpp

@@ -52,6 +52,7 @@ void UnHookAll() {
 
 namespace GakumasLocal::HookMain {
     using Il2cppString = UnityResolve::UnityType::String;
+    using Il2CppGCHandle = void*;
 
     UnityResolve::UnityType::String* environment_get_stacktrace() {
         /*
@@ -71,23 +72,46 @@ namespace GakumasLocal::HookMain {
         return toString_mtd->Invoke<Il2cppString*>(klassInstance);
     }
 
-    DEFINE_HOOK(void, Internal_LogException, (void* ex, void* obj)) {
+    // Unity 6: DebugLogHandler.Internal_Log* is resolved as a managed method
-        Internal_LogException_Orig(ex, obj);
+    // through GetMethod(), so the generated IL2CPP function includes the
+    // trailing MethodInfo* argument.
+    DEFINE_HOOK(void, Internal_LogException, (void* ex, void* obj, void* mtd)) {
+        Internal_LogException_Orig(ex, obj, mtd);
         static auto Exception_ToString = Il2cppUtils::GetMethod("mscorlib.dll", "System", "Exception", "ToString");
         Log::LogUnityLog(ANDROID_LOG_ERROR, "UnityLog - Internal_LogException:\n%s", Exception_ToString->Invoke<Il2cppString*>(ex)->ToString().c_str());
     }
 
-    DEFINE_HOOK(void, Internal_Log, (int logType, int logOption, UnityResolve::UnityType::String* content, void* context)) {
+    DEFINE_HOOK(void, Internal_Log, (int logType, int logOption, UnityResolve::UnityType::String* content, void* context, void* mtd)) {
-        Internal_Log_Orig(logType, logOption, content, context);
+        Internal_Log_Orig(logType, logOption, content, context, mtd);
-        // 2022.3.21f1
         Log::LogUnityLog(ANDROID_LOG_VERBOSE, "Internal_Log:\n%s", content->ToString().c_str());
     }
 
     bool IsNativeObjectAlive(void* obj) {
-        static UnityResolve::Method* IsNativeObjectAliveMtd = nullptr;
+        if (!obj) {
-        if (!IsNativeObjectAliveMtd) IsNativeObjectAliveMtd = Il2cppUtils::GetMethod("UnityEngine.CoreModule.dll", "UnityEngine",
+            return false;
-                                                                                     "Object", "IsNativeObjectAlive");
+        }
-        return IsNativeObjectAliveMtd->Invoke<bool>(obj);
+
+        static const auto IsNativeObjectAliveMtd = Il2cppUtils::GetMethod(
+            "UnityEngine.CoreModule.dll",
+            "UnityEngine",
+            "Object",
+            "IsNativeObjectAlive",
+            { "UnityEngine.Object" }
+        );
+
+        if (!IsNativeObjectAliveMtd || !IsNativeObjectAliveMtd->function) {
+            return false;
+        }
+
+        using IsNativeObjectAliveFn = bool (*)(void* obj, void* method);
+        const auto isNativeObjectAlive = reinterpret_cast<IsNativeObjectAliveFn>(
+            IsNativeObjectAliveMtd->function
+        );
+
+        return isNativeObjectAlive(
+            obj,
+            IsNativeObjectAliveMtd->address
+        );
     }
 
     UnityResolve::UnityType::Camera* mainCameraCache = nullptr;
@@ -343,7 +367,10 @@ namespace GakumasLocal::HookMain {
     }
 
     DEFINE_HOOK(void, CanvasRenderer_SetTexture, (void* self, void* texture)) {
-        CanvasRenderer_SetTexture_Orig(self, ReplaceTextureOrSpriteByObjectName(texture));
+        CanvasRenderer_SetTexture_Orig(
+            self,
+            ReplaceTextureOrSpriteByObjectName(texture)
+        );
     }
 
     DEFINE_HOOK(void, SpriteRenderer_set_sprite, (void* self, void* sprite)) {
@@ -372,7 +399,6 @@ namespace GakumasLocal::HookMain {
         }
     }
 
-    
 #ifdef GKMS_WINDOWS
     struct TransparentStringHash : std::hash<std::wstring>, std::hash<std::wstring_view>
     {
@@ -381,7 +407,7 @@ namespace GakumasLocal::HookMain {
 
     typedef std::unordered_set<std::wstring, TransparentStringHash, std::equal_to<void>> AssetPathsType;
     std::map<std::string, AssetPathsType> CustomAssetBundleAssetPaths;
-    std::unordered_map<std::string, uint32_t> CustomAssetBundleHandleMap{};
+    std::unordered_map<std::string, Il2CppGCHandle> CustomAssetBundleHandleMap{};
     std::list<std::string> g_extra_assetbundle_paths{};
 
     void LoadExtraAssetBundle() {
@@ -394,9 +420,12 @@ namespace GakumasLocal::HookMain {
         // CustomAssetBundleAssetPaths.clear();
         // assert(!ExtraAssetBundleHandle && ExtraAssetBundleAssetPaths.empty());
 
-        static auto AssetBundle_GetAllAssetNames = reinterpret_cast<void* (*)(void*)>(
+        static auto AssetBundle_GetAllAssetNames = Il2cppUtils::GetMethod(
-            Il2cppUtils::il2cpp_resolve_icall("UnityEngine.AssetBundle::GetAllAssetNames()")
+            "UnityEngine.AssetBundleModule.dll",
-            );
+            "UnityEngine",
+            "AssetBundle",
+            "GetAllAssetNames"
+        );
 
         for (const auto& i : g_extra_assetbundle_paths) {
             if (CustomAssetBundleHandleMap.contains(i)) continue;
@@ -404,7 +433,7 @@ namespace GakumasLocal::HookMain {
             const auto extraAssetBundle = WinHooks::LoadAssetBundle(i);
             if (extraAssetBundle)
             {
-                const auto allAssetPaths = AssetBundle_GetAllAssetNames(extraAssetBundle);
+                const auto allAssetPaths = AssetBundle_GetAllAssetNames->Invoke<void*>(extraAssetBundle);
                 AssetPathsType assetPath{};
                 Il2cppUtils::iterate_IEnumerable<Il2CppString*>(allAssetPaths, [&assetPath](Il2CppString* path)
                     {
@@ -413,7 +442,8 @@ namespace GakumasLocal::HookMain {
                         assetPath.emplace(path->start_char);
                     });
                 CustomAssetBundleAssetPaths.emplace(i, assetPath);
-                CustomAssetBundleHandleMap.emplace(i, UnityResolve::Invoke<uint32_t>("il2cpp_gchandle_new", extraAssetBundle, false));
+                const auto bundleHandle = UnityResolve::Invoke<Il2CppGCHandle>("il2cpp_gchandle_new", extraAssetBundle, false);
+                CustomAssetBundleHandleMap.emplace(i, bundleHandle);
             }
             else
             {
@@ -422,7 +452,7 @@ namespace GakumasLocal::HookMain {
         }
     }
 
-    uint32_t GetBundleHandleByAssetName(std::wstring assetName) {
+    Il2CppGCHandle GetBundleHandleByAssetName(std::wstring assetName) {
         for (const auto& i : CustomAssetBundleAssetPaths) {
             for (const auto& m : i.second) {
                 if (std::equal(m.begin(), m.end(), assetName.begin(), assetName.end(),
@@ -433,14 +463,14 @@ namespace GakumasLocal::HookMain {
                 }
             }
         }
-        return NULL;
+        return nullptr;
     }
 
-    uint32_t GetBundleHandleByAssetName(std::string assetName) {
+    Il2CppGCHandle GetBundleHandleByAssetName(std::string assetName) {
         return GetBundleHandleByAssetName(utility::conversions::to_string_t(assetName));
     }
 
-    uint32_t ReplaceFontHandle;
+    Il2CppGCHandle ReplaceFontHandle = nullptr;
 
     void* GetReplaceFont() {
         static auto FontClass = Il2cppUtils::GetClass("UnityEngine.TextRenderingModule.dll", "UnityEngine", "Font");
@@ -451,7 +481,7 @@ namespace GakumasLocal::HookMain {
         const auto fontPath = "assets/fonts/gkamszhfontmix.otf";
 
         void* replaceFont{};
-        const auto& bundleHandle = GetBundleHandleByAssetName(fontPath);
+        const auto bundleHandle = GetBundleHandleByAssetName(fontPath);
         if (bundleHandle)
         {
             if (ReplaceFontHandle)
@@ -466,19 +496,23 @@ namespace GakumasLocal::HookMain {
                 }
                 else
                 {
-                    UnityResolve::Invoke<void>("il2cpp_gchandle_free", std::exchange(ReplaceFontHandle, 0));
+                    UnityResolve::Invoke<void>("il2cpp_gchandle_free", std::exchange(ReplaceFontHandle, nullptr));
                 }
             }
 
             const auto extraAssetBundle = UnityResolve::Invoke<void*>("il2cpp_gchandle_get_target", bundleHandle);
-			static auto AssetBundle_LoadAsset = reinterpret_cast<void* (*)(void* _this, Il2CppString* name, Il2cppUtils::Il2CppReflectionType* type)>(
+            static auto AssetBundle_LoadAsset = Il2cppUtils::GetMethod(
-                Il2cppUtils::il2cpp_resolve_icall("UnityEngine.AssetBundle::LoadAsset_Internal(System.String,System.Type)")
+                "UnityEngine.AssetBundleModule.dll",
-				);;
+                "UnityEngine",
+                "AssetBundle",
+                "LoadAsset_Internal",
+                { "System.String", "System.Type" }
+            );
 
-            replaceFont = AssetBundle_LoadAsset(extraAssetBundle, Il2cppString::New(fontPath), Font_Type);
+            replaceFont = AssetBundle_LoadAsset->Invoke<void*>(extraAssetBundle, Il2cppString::New(fontPath), Font_Type);
             if (replaceFont)
             {
-                ReplaceFontHandle = UnityResolve::Invoke<uint32_t>("il2cpp_gchandle_new", replaceFont, false);
+                ReplaceFontHandle = UnityResolve::Invoke<Il2CppGCHandle>("il2cpp_gchandle_new", replaceFont, false);
             }
             else
             {
@@ -493,19 +527,72 @@ namespace GakumasLocal::HookMain {
     }
 #else
     void* fontCache = nullptr;
+    bool CreateFontFromPath(void* font, const std::filesystem::path& fontName) {
+        if (!font) {
+            return false;
+        }
+
+        const auto fontPath = Il2cppString::New(fontName.string());
+        if (!fontPath) {
+            Log::Error("CreateFontFromPath failed: cannot create path string");
+            return false;
+        }
+
+        static auto CreateFontFromPathIcall = reinterpret_cast<void (*)(void* self, Il2cppString* path)>(
+                Il2cppUtils::il2cpp_resolve_icall("UnityEngine.Font::Internal_CreateFontFromPath(UnityEngine.Font,System.String)")
+        );
+        if (CreateFontFromPathIcall) {
+            CreateFontFromPathIcall(font, fontPath);
+            return true;
+        }
+
+        static auto CreateFontFromPathMethod = [] {
+            auto method = Il2cppUtils::GetMethod(
+                    "UnityEngine.TextRenderingModule.dll",
+                    "UnityEngine",
+                    "Font",
+                    "Internal_CreateFontFromPath",
+                    { "UnityEngine.Font", "System.String" }
+            );
+            if (method) {
+                return method;
+            }
+
+            return Il2cppUtils::GetMethod(
+                    "UnityEngine.TextRenderingModule.dll",
+                    "UnityEngine",
+                    "Font",
+                    "Internal_CreateFontFromPath"
+            );
+        }();
+        if (!CreateFontFromPathMethod || !CreateFontFromPathMethod->function || !CreateFontFromPathMethod->address) {
+            Log::Error("CreateFontFromPath failed: method not found");
+            return false;
+        }
+
+        using CreateFontFromPathManagedFn = void (*)(void* font, Il2cppString* path, void* method);
+        const auto createFontFromPath = reinterpret_cast<CreateFontFromPathManagedFn>(
+                CreateFontFromPathMethod->function
+        );
+        createFontFromPath(font, fontPath, CreateFontFromPathMethod->address);
+        return true;
+    }
+
     void* GetReplaceFont() {
         static auto fontName = Local::GetBasePath() / "local-files" / "gkamsZHFontMIX.otf";
         if (!std::filesystem::exists(fontName)) {
             return nullptr;
         }
 
-        static auto CreateFontFromPath = reinterpret_cast<void (*)(void* self, Il2cppString* path)>(
-                Il2cppUtils::il2cpp_resolve_icall("UnityEngine.Font::Internal_CreateFontFromPath(UnityEngine.Font,System.String)")
-        );
         static auto Font_klass = Il2cppUtils::GetClass("UnityEngine.TextRenderingModule.dll",
                                                        "UnityEngine", "Font");
         static auto Font_ctor = Il2cppUtils::GetMethod("UnityEngine.TextRenderingModule.dll",
                                                        "UnityEngine", "Font", ".ctor");
+        if (!Font_klass || !Font_ctor) {
+            Log::Error("GetReplaceFont failed: Font class or constructor not found");
+            return nullptr;
+        }
+
         if (fontCache) {
             if (IsNativeObjectAlive(fontCache)) {
                 return fontCache;
@@ -513,9 +600,16 @@ namespace GakumasLocal::HookMain {
         }
 
         const auto newFont = Font_klass->New<void*>();
+        if (!newFont) {
+            Log::Error("GetReplaceFont failed: cannot create Font instance");
+            return nullptr;
+        }
         Font_ctor->Invoke<void>(newFont);
 
-        CreateFontFromPath(newFont, Il2cppString::New(fontName.string()));
+        if (!CreateFontFromPath(newFont, fontName)) {
+            return nullptr;
+        }
+
         fontCache = newFont;
         return newFont;
     }
@@ -1753,7 +1847,18 @@ namespace GakumasLocal::HookMain {
             UnityResolve::Mode::Il2Cpp, Config::lazyInit);
 #endif
 
-        // Temporarily isolate texture replacement to CanvasRenderer.SetTexture only.
+        // Texture replacement is currently isolated to CanvasRenderer.SetTexture.
+        //
+        // Unity 6 compatibility warning:
+        // The resolver helpers below may return either a native icall address or
+        // a managed IL2CPP methodPointer fallback. These two targets do not share
+        // the same ABI: a managed methodPointer normally has a trailing MethodInfo*
+        // argument, while the current hook declarations use the icall-style
+        // signatures. Do not simply uncomment these ADD_HOOK calls on Unity 6.
+        // Before restoring them, either:
+        //   1. make each resolver return only a verified icall address; or
+        //   2. return ABI metadata and install a separate managed hook signature
+        //      that preserves and forwards the trailing MethodInfo* argument.
         // ADD_HOOK(AssetBundle_LoadAsset, ResolveAssetBundleLoadAssetHookAddress());
         // ADD_HOOK(AssetBundle_LoadAssetAsync, ResolveAssetBundleLoadAssetAsyncHookAddress());
         // ADD_HOOK(AssetBundleRequest_GetResult, ResolveAssetBundleRequestResultHookAddress());
@@ -1992,10 +2097,41 @@ namespace GakumasLocal::HookMain {
                  Il2cppUtils::GetMethodPointer("campus-submodule.Runtime.dll", "Campus.Common",
                                                "CampusQualityManager", "set_TargetFrameRate"));
 
-        ADD_HOOK(Internal_LogException, Il2cppUtils::il2cpp_resolve_icall(
+        // Unity 6 no longer exposes these two methods through the old icall
-                "UnityEngine.DebugLogHandler::Internal_LogException(System.Exception,UnityEngine.Object)"));
+        // names in this player. Resolve their managed IL2CPP methodPointer
-        ADD_HOOK(Internal_Log, Il2cppUtils::il2cpp_resolve_icall(
+        // through GetMethod() and use hook signatures with a trailing MethodInfo*.
-                "UnityEngine.DebugLogHandler::Internal_Log(UnityEngine.LogType,UnityEngine.LogOption,System.String,UnityEngine.Object)"));
+        const auto Internal_LogException_Method = Il2cppUtils::GetMethod(
+            "UnityEngine.CoreModule.dll",
+            "UnityEngine",
+            "DebugLogHandler",
+            "Internal_LogException",
+            { "System.Exception", "UnityEngine.Object" }
+        );
+        ADD_HOOK(
+            Internal_LogException,
+            Internal_LogException_Method
+                ? Internal_LogException_Method->function
+                : nullptr
+        );
+
+        const auto Internal_Log_Method = Il2cppUtils::GetMethod(
+            "UnityEngine.CoreModule.dll",
+            "UnityEngine",
+            "DebugLogHandler",
+            "Internal_Log",
+            {
+                "UnityEngine.LogType",
+                "UnityEngine.LogOption",
+                "System.String",
+                "UnityEngine.Object"
+            }
+        );
+        ADD_HOOK(
+            Internal_Log,
+            Internal_Log_Method
+                ? Internal_Log_Method->function
+                : nullptr
+        );
 
         // 双端
         ADD_HOOK(InternalSetOrientationAsync,
@@ -2032,14 +2168,102 @@ namespace GakumasLocal::HookMain {
         //    "AspectRatioHandler", "WindowProc"));
 
         if (GakumasLocal::Config::dmmUnlockSize) {
-			std::thread([]() {
+            std::thread([]() {
-				std::this_thread::sleep_for(std::chrono::seconds(3));
+                std::this_thread::sleep_for(std::chrono::seconds(3));
-                    auto hWnd = FindWindowW(L"UnityWndClass", L"gakumas");
+
-                    // 添加可调整大小的边框和最大化按钮
+                const auto currentProcessId = GetCurrentProcessId();
-                    LONG style = GetWindowLong(hWnd, GWL_STYLE);
+                HWND hWnd = nullptr;
-                    style |= WS_THICKFRAME | WS_MAXIMIZEBOX;
+                HWND candidate = nullptr;
-                    SetWindowLong(hWnd, GWL_STYLE, style);
+
-				}).detach();
+                while ((candidate = FindWindowExW(
+                            nullptr,
+                            candidate,
+                            L"UnityWndClass",
+                            nullptr
+                        )) != nullptr) {
+                    DWORD windowProcessId = 0;
+                    GetWindowThreadProcessId(
+                        candidate,
+                        &windowProcessId
+                    );
+
+                    if (windowProcessId == currentProcessId) {
+                        hWnd = candidate;
+                        break;
+                    }
+                }
+
+                if (!hWnd) {
+                    Log::Error(
+                        "DMM unlock size failed: Unity window not found."
+                    );
+                    return;
+                }
+
+                SetLastError(ERROR_SUCCESS);
+
+                auto style = GetWindowLongPtrW(
+                    hWnd,
+                    GWL_STYLE
+                );
+
+                if (style == 0 &&
+                    GetLastError() != ERROR_SUCCESS) {
+                    Log::ErrorFmt(
+                        "DMM unlock size failed: "
+                        "GetWindowLongPtrW error=%lu",
+                        GetLastError()
+                    );
+                    return;
+                }
+
+                style |= WS_THICKFRAME |
+                         WS_MAXIMIZEBOX;
+
+                SetLastError(ERROR_SUCCESS);
+
+                const auto previousStyle =
+                    SetWindowLongPtrW(
+                        hWnd,
+                        GWL_STYLE,
+                        style
+                    );
+
+                if (previousStyle == 0 &&
+                    GetLastError() != ERROR_SUCCESS) {
+                    Log::ErrorFmt(
+                        "DMM unlock size failed: "
+                        "SetWindowLongPtrW error=%lu",
+                        GetLastError()
+                    );
+                    return;
+                }
+
+                if (!SetWindowPos(
+                        hWnd,
+                        nullptr,
+                        0,
+                        0,
+                        0,
+                        0,
+                        SWP_NOMOVE |
+                        SWP_NOSIZE |
+                        SWP_NOZORDER |
+                        SWP_NOACTIVATE |
+                        SWP_FRAMECHANGED
+                    )) {
+                    Log::ErrorFmt(
+                        "DMM unlock size failed: "
+                        "SetWindowPos error=%lu",
+                        GetLastError()
+                    );
+                    return;
+                }
+
+                Log::Info(
+                    "DMM window size unlocked."
+                );
+            }).detach();
         }
 
         g_extra_assetbundle_paths.push_back((gakumasLocalPath / "local-files/gakumasassets").string());

app/src/main/cpp/GakumasLocalify/HookTexture.cpp

@@ -20,6 +20,7 @@
 namespace GakumasLocal::HookMain
 {
     using Il2cppString = UnityResolve::UnityType::String;
+    using Il2CppGCHandle = void*;
 
     extern void* (*Sprite_get_texture_Orig)(void* self);
 
@@ -27,7 +28,7 @@ namespace GakumasLocal::HookMain
 
     Il2cppUtils::Il2CppClassHead* Texture2DClass = nullptr;
     Il2cppUtils::Il2CppClassHead* SpriteClass = nullptr;
-    std::unordered_map<std::string, uint32_t> LoadedLocalTextureHandles{};
+    std::unordered_map<std::string, Il2CppGCHandle> LoadedLocalTextureHandles{};
     std::unordered_set<std::string> AppliedLocalTextureKeys{};
 
     Il2cppUtils::Il2CppClassHead* GetTexture2DClass() {
@@ -73,9 +74,35 @@ namespace GakumasLocal::HookMain
     Il2cppString* GetObjectName(void* obj) {
         if (!obj) return nullptr;
 
-        static auto Object_GetName = reinterpret_cast<Il2cppString * (*)(void*)>(
+        static const auto Object_get_name =
-            Il2cppUtils::il2cpp_resolve_icall("UnityEngine.Object::GetName(UnityEngine.Object)"));
+            Il2cppUtils::GetMethod(
-        return Object_GetName ? Object_GetName(obj) : nullptr;
+                "UnityEngine.CoreModule.dll",
+                "UnityEngine",
+                "Object",
+                "get_name"
+            );
+
+        if (!Object_get_name ||
+            !Object_get_name->function) {
+            Log::Error("Cannot find UnityEngine.Object.get_name");
+            return nullptr;
+        }
+
+        using ObjectGetNameFn =
+            Il2cppString* (*)(
+                void* self,
+                void* method
+            );
+
+        const auto getName =
+            reinterpret_cast<ObjectGetNameFn>(
+                Object_get_name->function
+            );
+
+        return getName(
+            obj,
+            Object_get_name->address
+        );
     }
 
     void SetDontUnloadUnusedAsset(void* obj) {
@@ -494,6 +521,57 @@ namespace GakumasLocal::HookMain
         }
     }
 
+    bool LoadImageFromByteArray(
+        void* texture,
+        void* byteArray,
+        bool markNonReadable
+    ) {
+        if (!texture || !byteArray) {
+            return false;
+        }
+
+        static const auto LoadImageMethod =
+            Il2cppUtils::GetMethod(
+                "UnityEngine.ImageConversionModule.dll",
+                "UnityEngine",
+                "ImageConversion",
+                "LoadImage",
+                {
+                    "UnityEngine.Texture2D",
+                    "System.Byte[]",
+                    "System.Boolean"
+                }
+            );
+
+        if (!LoadImageMethod ||
+            !LoadImageMethod->function) {
+            Log::Error(
+                "Cannot find ImageConversion.LoadImage(Texture2D, Byte[], Boolean)"
+            );
+            return false;
+        }
+
+        using LoadImageFn =
+            bool (*)(
+                void* texture,
+                void* byteArray,
+                bool markNonReadable,
+                void* method
+            );
+
+        const auto loadImage =
+            reinterpret_cast<LoadImageFn>(
+                LoadImageMethod->function
+            );
+
+        return loadImage(
+            texture,
+            byteArray,
+            markNonReadable,
+            LoadImageMethod->address
+        );
+    }
+
     void* LoadLocalTexture2D(const std::filesystem::path& path) {
         if (!std::filesystem::is_regular_file(path)) return nullptr;
 
@@ -516,33 +594,14 @@ namespace GakumasLocal::HookMain
             const auto ctor = textureClass ? Il2cppUtils::il2cpp_class_get_method_from_name(textureClass, ".ctor", 2) : nullptr;
             return ctor ? reinterpret_cast<void (*)(void*, int, int)>(ctor->methodPointer) : nullptr;
         }();
-        static auto ImageConversion_LoadImage = [] {
-            using LoadImageFn = bool (*)(void*, void*, bool);
-            if (const auto icall = Il2cppUtils::il2cpp_resolve_icall(
-                "UnityEngine.ImageConversion::LoadImage(UnityEngine.Texture2D,System.Byte[],System.Boolean)")) {
-                return reinterpret_cast<LoadImageFn>(icall);
-            }
-
-            for (const auto& assemblyName : {"UnityEngine.ImageConversionModule.dll", "UnityEngine.CoreModule.dll"}) {
-                const auto assembly = UnityResolve::Get(assemblyName);
-                const auto imageConversionClass = assembly ? assembly->Get("ImageConversion", "UnityEngine") : nullptr;
-                const auto method = imageConversionClass
-                    ? Il2cppUtils::il2cpp_class_get_method_from_name(imageConversionClass->address, "LoadImage", 3)
-                    : nullptr;
-                if (method) {
-                    return reinterpret_cast<LoadImageFn>(method->methodPointer);
-                }
-            }
-            return static_cast<LoadImageFn>(nullptr);
-        }();
         static auto File_ReadAllBytes = [] {
             const auto fileClass = Il2cppUtils::GetClass("mscorlib.dll", "System.IO", "File");
             const auto method = fileClass ? Il2cppUtils::il2cpp_class_get_method_from_name(fileClass->address, "ReadAllBytes", 1) : nullptr;
             return method ? reinterpret_cast<void* (*)(Il2cppString*)>(method->methodPointer) : nullptr;
         }();
 
-        if (!Texture2D_ctor || !ImageConversion_LoadImage || !File_ReadAllBytes) {
+        if (!Texture2D_ctor || !File_ReadAllBytes) {
-            Log::Error("LoadLocalTexture2D failed: Unity Texture2D/ImageConversion/File API not found.");
+            Log::Error("LoadLocalTexture2D failed: Unity Texture2D/File API not found.");
             return nullptr;
         }
 
@@ -551,19 +610,28 @@ namespace GakumasLocal::HookMain
 
         const auto texture = UnityResolve::Invoke<void*>("il2cpp_object_new", textureClass);
         Texture2D_ctor(texture, 2, 2);
-        if (!ImageConversion_LoadImage(texture, fileBytes, false)) {
+        if (!LoadImageFromByteArray(texture, fileBytes, false)) {
             Log::ErrorFmt("LoadLocalTexture2D failed: %s", path.string().c_str());
             return nullptr;
         }
 
         SetDontUnloadUnusedAsset(texture);
-        LoadedLocalTextureHandles.emplace(cacheKey, UnityResolve::Invoke<uint32_t>("il2cpp_gchandle_new", texture, false));
+        const auto textureHandle = UnityResolve::Invoke<Il2CppGCHandle>("il2cpp_gchandle_new", texture, false);
+        if (!textureHandle) {
+            Log::ErrorFmt("Cannot create texture GCHandle: %s", path.string().c_str());
+            return nullptr;
+        }
+        LoadedLocalTextureHandles.emplace(cacheKey, textureHandle);
         Log::InfoFmt("Texture replaced from local file: %s", path.string().c_str());
         return texture;
     }
 
     void* LoadLocalTexture2DFromCandidates(const std::vector<std::filesystem::path>& candidates) {
         for (const auto& candidate : candidates) {
+            if (!std::filesystem::is_regular_file(candidate)) {
+                continue;
+            }
+
             if (auto texture = LoadLocalTexture2D(candidate)) {
                 return texture;
             }
@@ -578,40 +646,21 @@ namespace GakumasLocal::HookMain
             + "|" + std::to_string(reinterpret_cast<std::uintptr_t>(texture2D));
         if (AppliedLocalTextureKeys.contains(cacheKey)) return true;
 
-        static auto ImageConversion_LoadImage = [] {
-            using LoadImageFn = bool (*)(void*, void*, bool);
-            if (const auto icall = Il2cppUtils::il2cpp_resolve_icall(
-                "UnityEngine.ImageConversion::LoadImage(UnityEngine.Texture2D,System.Byte[],System.Boolean)")) {
-                return reinterpret_cast<LoadImageFn>(icall);
-            }
-
-            for (const auto& assemblyName : {"UnityEngine.ImageConversionModule.dll", "UnityEngine.CoreModule.dll"}) {
-                const auto assembly = UnityResolve::Get(assemblyName);
-                const auto imageConversionClass = assembly ? assembly->Get("ImageConversion", "UnityEngine") : nullptr;
-                const auto method = imageConversionClass
-                    ? Il2cppUtils::il2cpp_class_get_method_from_name(imageConversionClass->address, "LoadImage", 3)
-                    : nullptr;
-                if (method) {
-                    return reinterpret_cast<LoadImageFn>(method->methodPointer);
-                }
-            }
-            return static_cast<LoadImageFn>(nullptr);
-        }();
         static auto File_ReadAllBytes = [] {
             const auto fileClass = Il2cppUtils::GetClass("mscorlib.dll", "System.IO", "File");
             const auto method = fileClass ? Il2cppUtils::il2cpp_class_get_method_from_name(fileClass->address, "ReadAllBytes", 1) : nullptr;
             return method ? reinterpret_cast<void* (*)(Il2cppString*)>(method->methodPointer) : nullptr;
         }();
 
-        if (!ImageConversion_LoadImage || !File_ReadAllBytes) {
+        if (!File_ReadAllBytes) {
-            Log::Error("ApplyLocalImageToTexture2D failed: Unity ImageConversion/File API not found.");
+            Log::Error("ApplyLocalImageToTexture2D failed: Unity File API not found.");
             return false;
         }
 
         const auto fileBytes = File_ReadAllBytes(Il2cppString::New(path.string()));
         if (!fileBytes) return false;
 
-        if (!ImageConversion_LoadImage(texture2D, fileBytes, false)) {
+        if (!LoadImageFromByteArray(texture2D, fileBytes, false)) {
             Log::ErrorFmt("ApplyLocalImageToTexture2D failed: %s", path.string().c_str());
             return false;
         }
@@ -736,6 +785,16 @@ namespace GakumasLocal::HookMain
         return texture2D;
     }
 
+    // Unity 6 compatibility warning:
+    // The resolver functions below currently mix two possible target ABIs:
+    //   - il2cpp_resolve_icall(): native icall signature
+    //   - GetMethodPointer(): managed IL2CPP methodPointer, normally with a
+    //     trailing MethodInfo* argument
+    //
+    // The corresponding AssetBundle / Resources / Sprite hooks in Hook.cpp are
+    // intentionally disabled. They must not be restored until the resolver and
+    // hook declarations distinguish these ABI forms, or until the managed
+    // fallback is removed and a verified icall is required.
     void* ResolveSpriteGetTextureHookAddress() {
         if (const auto addr = Il2cppUtils::il2cpp_resolve_icall("UnityEngine.Sprite::get_texture(UnityEngine.Sprite)")) {
             return addr;

app/src/main/res/values-zh-rHK/strings.xml

@@ -3,6 +3,7 @@
     <string name="gakumas_localify">Gakumas Localify</string>
     <string name="enable_plugin">啟用插件 (不可熱重載)</string>
     <string name="replace_font">替換字體</string>
+    <string name="replace_texture">替換貼圖</string>
     <string name="lazy_init">快速初始化（懶人設定）</string>
     <string name="enable_free_camera">啟用自由視角（可熱重載; 需使用實體鍵盤）</string>
     <string name="start_game">以上述設定啟動遊戲/重載設定</string>

app/src/main/res/values-zh-rMO/strings.xml

@@ -3,6 +3,7 @@
     <string name="gakumas_localify">Gakumas Localify</string>
     <string name="enable_plugin">啟用插件 (不可熱重載)</string>
     <string name="replace_font">替換字體</string>
+    <string name="replace_texture">替換貼圖</string>
     <string name="lazy_init">快速初始化（懶人設定）</string>
     <string name="enable_free_camera">啟用自由視角（可熱重載; 需使用實體鍵盤）</string>
     <string name="start_game">以上述設定啟動遊戲/重載設定</string>

app/src/main/res/values-zh-rTW/strings.xml

@@ -3,6 +3,7 @@
     <string name="gakumas_localify">Gakumas Localify</string>
     <string name="enable_plugin">啟用插件 (不可熱重載)</string>
     <string name="replace_font">替換字體</string>
+    <string name="replace_texture">替換貼圖</string>
     <string name="lazy_init">快速初始化（懶人設定）</string>
     <string name="enable_free_camera">啟用自由視角（可熱重載; 需使用實體鍵盤）</string>
     <string name="start_game">以上述設定啟動遊戲/重載設定</string>