Claude stuff

CLAUDE.md

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+# gMod
+
+A 32-bit Windows DLL that hooks Direct3D 9 to load texture mods for Guild Wars. Continuation of uMod. Integrated with [GW Launcher](https://github.com/gwdevhub/gwlauncher) and [Daybreak](https://github.com/gwdevhub/Daybreak).
+
+## Project structure
+
+- `header/` — header files (D3D9Hooks, D3D9State, Defines, Error, Main, Utils)
+- `source/` — implementation files (D3D9Hooks.cpp, dll_main.cpp, Error.cpp)
+- `modules/` — C++23 module files (ModfileLoader, ModfileLoader_TpfReader, TextureClient, TextureFunction)
+- `TpfConvert/` — standalone utility to fix broken .tpf files
+- `cmake/` — CMake helper scripts
+- `build/` — CMake build tree (generated, ignored)
+- `bin/` — compiled output (generated, ignored)
+
+## Build
+
+Requires Visual Studio 2022, CMake 3.29+, and vcpkg — all via the VS 2022 Developer PowerShell.
+
+```
+cmake --preset=vcpkg
+cmake --open build
+# then compile inside Visual Studio, or:
+cmake --build build --config Release
+```
+
+- Target: 32-bit only (`-A Win32` / `CMAKE_GENERATOR_PLATFORM=win32`)
+- Standard: C++23
+- Output: `bin/` (gMod.dll, TpfConvert.exe)
+- Version: set in `CMakeLists.txt` (`VERSION_MAJOR/MINOR/PATCH/TWEAK`)
+
+## Key dependencies (via vcpkg)
+
+- `minhook` — D3D9 function hooking
+- `libzippp` / `libzip` / `zlib` — reading .tpf/.zip mod files
+- `directxtex` — texture format conversion
+- `Microsoft.GSL` — Guidelines Support Library
+
+## How it works
+
+1. `dll_main.cpp` — DLL entry point, hooks d3d9.dll via MinHook
+2. `D3D9Hooks.cpp` — intercepts `Direct3DCreate9` and IDirect3DDevice9 methods
+3. `ModfileLoader` — reads `modlist.txt`, loads .tpf/.zip mod archives
+4. `TextureClient` / `TextureFunction` — matches and replaces textures by hash at runtime
+
+## Notes
+
+- Must be injected before d3d9.dll loads, or renamed to d3d9.dll in the GW folder
+- Reshade > 5.0.1 causes glitches; recommend 5.0.1 or 4.9.1
+- `modlist.txt` contains full paths to .tpf/.zip mod files, one per line