fix(*):

switch to exe loader method to make sure the dll is properly injected
2026-10-10 04:43:07 +08:00 · 2025-02-28 16:52:23 +08:00
parent 437c8675e7
commit 81d7faa0da
22 changed files with 247 additions and 336 deletions
@@ -85,3 +85,13 @@ _deps
 *.app

 # End of https://www.toptal.com/developers/gitignore/api/c++
+# Created by https://www.toptal.com/developers/gitignore/api/xmake
+# Edit at https://www.toptal.com/developers/gitignore?templates=xmake
+
+### xmake ###
+# Xmake cache
+.xmake/
+build/
+
+# End of https://www.toptal.com/developers/gitignore/api/xmake
+
@@ -1,35 +0,0 @@
-cmake_minimum_required(VERSION 3.25.0)
-
-set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake CACHE STRING "")
-set(CMAKE_EXPORT_COMPILE_COMMANDS true)
-
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-
-include(AutoCCache)
-
-project(KProject)
-
-set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
-
-set(CMAKE_CXX_STANDARD 20)
-set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
-
-find_package(minhook CONFIG REQUIRED)
-find_package(spdlog CONFIG REQUIRED)
-
-set(TARGET "kpatch")
-set(TARGET_SRC  src/dllmain.cpp)
-set(TARGET_OUTPUT_NAME "kpatch")
-add_library(${TARGET} SHARED ${TARGET_SRC})
-set_target_properties(${TARGET} PROPERTIES OUTPUT_NAME ${TARGET_OUTPUT_NAME})
-target_include_directories(${TARGET} PRIVATE ${CMAKE_SOURCE_DIR}/include)
-target_link_libraries(${TARGET} PRIVATE spdlog::spdlog_header_only)
-# target_link_libraries(${TARGET} PUBLIC minhook::minhook)
-
-
-# ------------ post build ------------
-# copy compile_commands.json for clangd
-if(EXISTS "${CMAKE_BINARY_DIR}/compile_commands.json")
-    file(COPY "${CMAKE_BINARY_DIR}/compile_commands.json" DESTINATION "${CMAKE_SOURCE_DIR}")
-endif()
@@ -1,15 +0,0 @@
-{
-    "version": 6,
-    "cmakeMinimumRequired": {
-        "major": 3,
-        "minor": 25,
-        "patch": 0
-    },
-    "include": [
-        "cmake/presets/linux.json",
-        "cmake/presets/windows.json"
-    ],
-    "configurePresets": [ ],
-    "buildPresets": [ ],
-    "testPresets": [ ]
-}
@@ -0,0 +1 @@
+IDI_APP_ICON ICON "app.ico"
@@ -1,10 +0,0 @@
-# From https://gist.github.com/cgmb/c48bfa77da6c825a27bf05d25001d321
-
-option(AUTO_CCACHE "Use ccache to speed up rebuilds" ON)
-find_program(CCACHE_PROGRAM ccache)
-if(CCACHE_PROGRAM AND ${AUTO_CCACHE})
-  message(STATUS "Using ${CCACHE_PROGRAM} as compiler launcher")
-  set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
-  # requires at least CMake 3.9 to be any use
-  set(CMAKE_CUDA_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
-endif()
@@ -1,15 +0,0 @@
-{
-    "version": 6,
-    "configurePresets": [
-        {
-            "name": "config-base",
-            "displayName": "base Configuration",
-            "hidden": true,
-            "binaryDir": "${sourceDir}/build/${presetName}",
-            "installDir": "${sourceDir}/install/${presetName}",
-            "cacheVariables": {
-                "CMAKE_EXPORT_COMPILE_COMMANDS": true
-            }
-        }
-    ]
-}
@@ -1,77 +0,0 @@
-{
-    "version": 6,
-    "include": [ "base.json" ],
-    "configurePresets": [
-        {
-            "name": "config-base-linux",
-            "displayName": "base Configuration for linux",
-            "inherits": "config-base",
-            "hidden": true,
-            "condition": {
-                "type": "equals",
-                "lhs": "${hostSystemName}",
-                "rhs": "Linux"
-            }
-        },
-        {
-            "name": "x64-debug",
-            "inherits": "config-base-linux",
-            "generator": "Ninja",
-            "architecture":{
-                "value": "x64",
-                "strategy": "external"
-            },
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE" : "Debug"
-            }
-        },
-        {
-            "name": "x64-release",
-            "inherits": "x64-debug",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE" : "Release"
-            }
-        },
-        {
-            "name": "x86-debug",
-            "inherits": "config-base-linux",
-            "generator": "Ninja",
-            "architecture":{
-                "value": "x86",
-                "strategy": "external"
-            },
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE" : "Debug",
-                "CMAKE_C_FLAGS": "-m32",
-                "CMAKE_CXX_FLAGS": "-m32",
-                "CMAKE_SYSTEM_PROCESSOR": "x86"
-            }
-        },
-        {
-            "name": "x86-release",
-            "inherits": "x86-debug",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE" : "Release"
-            }
-        }
-    ],
-    "buildPresets": [
-        {
-            "name": "x64-debug",
-            "configurePreset": "x64-debug"
-        },
-        {
-            "name": "x64-release",
-            "configurePreset": "x64-release"
-        },
-        {
-            "name": "x86-debug",
-            "configurePreset": "x86-debug"
-        },
-        {
-            "name": "x86-release",
-            "configurePreset": "x86-release"
-        }
-    ],
-    "testPresets": [ ]
-}
@@ -1,76 +0,0 @@
-{
-    "version": 6,
-    "include": ["base.json"],
-    "configurePresets": [
-        {
-            "name": "config-base-windows",
-            "displayName": "base Configuration for windows",
-            "inherits": "config-base",
-            "hidden": true,
-            "condition": {
-                "type": "equals",
-                "lhs": "${hostSystemName}",
-                "rhs": "Windows"
-            }
-        },
-        {
-            "name": "x64-debug-msvc",
-            "inherits": "config-base-windows",
-            "generator": "",
-            "architecture":{
-                "value": "x64",
-                "strategy": "external"
-            },
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE" : "Debug",
-                "CMAKE_GENERATOR_PLATFORM": "x64"
-            }
-        },
-        {
-            "name": "x64-release-msvc",
-            "inherits": "x64-debug-msvc",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE" : "Release"
-            }
-        },
-        {
-            "name": "x86-debug-msvc",
-            "inherits": "config-base-windows",
-            "generator": "",
-            "architecture":{
-                "value": "x86",
-                "strategy": "external"
-            },
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE" : "Debug",
-                "CMAKE_GENERATOR_PLATFORM": "Win32"
-            }
-        },
-        {
-            "name": "x86-release-msvc",
-            "inherits": "x86-debug-msvc",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE" : "Release"
-            }
-        }
-    ],
-    "buildPresets": [
-        {
-            "name": "x64-debug-msvc",
-            "configurePreset": "x64-debug-msvc"
-        },
-        {
-            "name": "x64-release-msvc",
-            "configurePreset": "x64-release-msvc"
-        },
-        {
-            "name": "x86-debug-msvc",
-            "configurePreset": "x86-debug-msvc"
-        },
-        {
-            "name": "x86-release-msvc",
-            "configurePreset": "x86-release-msvc"
-        }
-    ],
-    "testPresets": [ ]
-}
@@ -1,5 +1,5 @@
 TEMPLATE_VER := "v1.0.0"
-TARGET := "F:/Games/SteamLibrary/steamapps/common/Left 4 Dead 2"
+TARGET := "D:\\Games\\GamePlatforms\\SteamLibrary\\steamapps\\common\\Left 4 Dead 2"

 # use `just preset=x64-release config build` to override this
 preset := "x86-release-msvc"
@@ -12,17 +12,24 @@ init:
 clean:
    rm -rf build

-config:
-    cmake --preset {{preset}}
+# config:
+#     # cmake --preset {{preset}} -DBUILD_SHARED_LIBS=OFF
+#     xmake

 build:
-    cmake --build --preset {{preset}} --config Release
+    # cmake --build --preset {{preset}} --config Release
+    xmake

 copy: build
-    cd ./build/x86-release-msvc/bin/Release && \
-        cp -f kpatch.dll "{{TARGET}}/kpatch.asi" && \
-        cp -f fmt.dll "{{TARGET}}/"
-    cp -f third/version.dll "{{TARGET}}/"
+    # cd ./build/x86-release-msvc/bin/Release && \
+    #     cp -f kpatch.dll "{{TARGET}}/kpatch.asi" && \
+    #     cp -f fmt.dll "{{TARGET}}/"
+    # cp -f third/version.dll "{{TARGET}}/"
+
+    # cp build/windows/x86/release/version.dll "{{TARGET}}"
+
+    cp build/windows/x86/release/kpatch.dll "{{TARGET}}"
+    cp build/windows/x86/release/left4dead2_fix.exe "{{TARGET}}"

@run:
    ./build/{{preset}}/bin/{{target}}
@@ -0,0 +1,71 @@
+//#pragma comment(linker, "/subsystem:\"Windows\" /entry:\"mainCRTStartup\"")
+#include <windows.h>
+#include <string>
+#include <filesystem>
+#include <shellapi.h>
+
+#include <detours/detours.h>
+
+namespace fs = std::filesystem;
+
+const wchar_t* game_name = L"left4dead2.exe";
+
+int WINAPI wWinMain(
+    _In_ HINSTANCE hInstance,
+    _In_opt_ HINSTANCE hPrevInstance,
+    _In_ LPWSTR lpwCmdLine,
+    _In_ int nShowCmd
+) {
+    WCHAR working_path[MAX_PATH];
+    GetModuleFileNameW(nullptr, working_path, MAX_PATH);
+
+    // Change the working directory to the directory containing the DLL.
+    fs::path path(working_path);
+    SetCurrentDirectoryW(path.parent_path().wstring().c_str());
+
+    LPCSTR dll_path = "kpatch.dll";
+
+    LPCWSTR target_exe_path = game_name;
+
+    // if (std::filesystem::exists(L"left4dead2.exe.orig")) {
+    //     target_exe_path = L"left4dead2.exe.orig";
+    // } else {
+    //     target_exe_path = game_name;
+    // }
+
+    STARTUPINFOW si;
+    PROCESS_INFORMATION pi;
+
+    ZeroMemory(&si, sizeof(si));
+    ZeroMemory(&pi, sizeof(pi));
+
+    si.cb = sizeof(si);
+
+    DWORD dwFlags = CREATE_DEFAULT_ERROR_MODE | CREATE_SUSPENDED;
+
+    SetLastError(0);
+    if (TRUE != DetourCreateProcessWithDllExW(
+            target_exe_path,
+            lpwCmdLine,
+            nullptr,
+            nullptr,
+            TRUE,
+            dwFlags,
+            nullptr,
+            nullptr,
+            &si,
+            &pi,
+            dll_path,
+            nullptr)) {
+        auto dwError = GetLastError();
+        printf("DetourCreateProcessWithDllEx failed with error %ld\n", dwError);
+
+        ExitProcess(9009);
+    }
+
+    ResumeThread(pi.hThread);
+
+    WaitForSingleObject(pi.hProcess, INFINITE);
+
+    return 0;
+}
@@ -1,8 +0,0 @@
-#!/bin/bash
-
-set -xe
-
-git clone https://github.com/microsoft/vcpkg.git --depth 1
-./vcpkg/bootstrap-vcpkg.sh
-
-./vcpkg/vcpkg new --application
@@ -1,10 +0,0 @@
-#!nu
-
-echo "init vcpkg"
-git clone https://github.com/microsoft/vcpkg.git --depth 1
-./vcpkg/bootstrap-vcpkg.bat
-
-./vcpkg/vcpkg new --application
-
-echo "Retarget from linux preset `x64-debug` to windows preset `x64-debug-msvc`"
-open justfile | str replace r#'"x64-debug"'# r#'"x64-debug-msvc"'# | save justfile -f
@@ -2,11 +2,22 @@
 #include <spdlog/spdlog.h>
 #include <spdlog/sinks/basic_file_sink.h>

-#include <cctype>
+#include <windows.h>
+#include <libloaderapi.h>
+
+#include <cstdint>
+#include <cstddef>
+#include <iostream>
+#include <filesystem>
+
 #include <algorithm>
+#include <detours/detours.h>

 #include "helper.hpp"

+constexpr bool isDebug = true;
+constexpr bool isTesting = true;
+
 HMODULE baseModule = GetModuleHandle(NULL);
 HMODULE thisModule; // Fix DLL

@@ -21,7 +32,16 @@ std::filesystem::path sExePath;
 std::string sExeName;
 std::filesystem::path sThisModulePath;

+void InitConsole() {
+    AllocConsole();
+    FILE *dummy;
+    freopen_s(&dummy, "CONOUT$", "w", stdout);
+}
+
 void Logging() {
+    if constexpr (isDebug) {
+        InitConsole();
+    }
    // Get this module path
    WCHAR thisModulePath[_MAX_PATH] = { 0 };
    GetModuleFileNameW(thisModule, thisModulePath, MAX_PATH);
@@ -57,18 +77,18 @@ void Logging() {
        spdlog::info("Module Timestamp: {0:d}", Memory::ModuleTimestamp(baseModule));
        spdlog::info("----------");
    } catch (const spdlog::spdlog_ex &ex) {
-        AllocConsole();
-        FILE *dummy;
-        freopen_s(&dummy, "CONOUT$", "w", stdout);
-        std::cout << "Log initialisation failed: " << ex.what() << std::endl;
-        FreeLibraryAndExitThread(baseModule, 1);
+        InitConsole();
    }
 }

 DWORD __stdcall Main(void*) {
    Logging();
+
+    if constexpr (isTesting) {
+        MessageBoxW(NULL, L"警告：这是测试版补丁，设定为必定会炸，用于检测补丁是否正确应用。", L"L4D2 Fix", MB_OK|MB_SYSTEMMODAL|MB_ICONWARNING);
+    }
+
    std::filesystem::path startup_check = L"success.txt";
-    // MessageBoxW(NULL, L"警告：这是测试版补丁，设定为必定会炸，用于检测补丁是否正确应用。", L"L4D2 Fix", MB_OK|MB_SYSTEMMODAL|MB_ICONWARNING);

    if (!std::filesystem::exists(startup_check)) {
        MessageBoxW(
@@ -80,31 +100,51 @@ DWORD __stdcall Main(void*) {
    std::wstring cmdline = GetCommandLineW();
    spdlog::info(L"Startup commandline: {}", cmdline.c_str());

-    std::wstring dllName;
-    std::transform(cmdline.cbegin(), cmdline.cend(), cmdline.begin(), ::tolower);
+    std::wstring dllName = L"shaderapidx9.dll";
+    bool isVulkan = false;

+    std::transform(cmdline.cbegin(), cmdline.cend(), cmdline.begin(), ::tolower);
    if (cmdline.find(L"-vulkan") != std::wstring::npos) {
        dllName = L"shaderapivk.dll";
        spdlog::info(L"Detected Vulkan: using {}", dllName);
+        isVulkan = true;
    } else {
-        dllName = L"shaderapidx9.dll";
+        spdlog::info(L"Detected DirectX9: using {}", dllName);
    }
-    auto hDll = LoadLibraryW(dllName.c_str());
+
+    auto relPath = std::filesystem::path(L"bin") / dllName;
+    auto absPath = std::filesystem::absolute(relPath);
+
+    std::wcout << absPath << std::endl;
+    spdlog::info(L"Loading Dll fromg {}", absPath.wstring());
+
+    HMODULE hDll = LoadLibraryExW(absPath.c_str(), nullptr, LOAD_WITH_ALTERED_SEARCH_PATH);

    if (hDll == nullptr) {
-        MessageBoxW(NULL, std::format(L"Failed to load {}!", dllName).c_str(), L"L4D2 Fix", MB_OK|MB_SYSTEMMODAL|MB_ICONSTOP);
+        auto errCode = GetLastError();
+        wchar_t buf[255];
+        FormatMessageW(
+            FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+            NULL, errCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+            buf, (sizeof(buf) / sizeof(wchar_t)), NULL);
+        std::wcout << errCode << std::endl;
+        std::wcout << buf << std::endl;
+        MessageBoxW(NULL, std::format(L"Failed to load {}!", dllName).c_str(), L"L4D2 Fix", MB_OK | MB_SYSTEMMODAL | MB_ICONSTOP);
        exit(-1);
    }

+    // Tag, pattern, start_search_path, write_offset
    auto f = [&](const wchar_t* tag, const char* pattern, size_t offset, size_t w_offset) {
-        std::uint8_t* ptr = Memory::PatternScan(hDll, pattern);
+        std::uint8_t* ptr = Memory::PatternScan(hDll, pattern, offset);

-        constexpr uint32_t new_buffer_size = 0x020000;
-        // constexpr uint32_t new_buffer_size = 32;
+        uint32_t new_buffer_size = 0x020000;
+        if constexpr (isTesting) {
+            new_buffer_size = 32;
+        }

        if (ptr != nullptr) {
            Memory::Write((uintptr_t)(ptr + w_offset), new_buffer_size);
-            spdlog::info(L"Modified the vertex max buffer {}: {}", dllName, tag);
+            spdlog::info(L"Modified the vertex max buffer {}: {} @ 0x{:0x}", dllName, tag, (intptr_t)(ptr) - (intptr_t)hDll);
            return ptr;
        }

@@ -112,24 +152,58 @@ DWORD __stdcall Main(void*) {
        return (uint8_t*)nullptr;
    };

-    // CreateEmptyColorMesh
-    auto ptr1 = f(L"CreateEmptyColorMesh", "68 ?? ?? ?? ?? 68 00 80 00 00 6A 04", 0, 6);

-    auto ptr1_1 = f(L"CreateEmptyColorMesh Later", "68 00 80 00 00 50 8B", (size_t)ptr1, 1);
+    std::vector<void*> ptr_cache;
+    std::string pattern;
+    // CreateEmptyColorMesh
+
+    pattern = "68 ?? ?? ?? ?? 68 00 80 00 00 6A 04";
+    auto* ptr1 = f(
+        L"CreateEmptyColorMesh",
+        pattern.c_str(),
+        0,
+        6
+    );
+    ptr_cache.push_back(ptr1);
+
+    pattern = "68 00 80 00 00 50 8B";
+    auto* ptr1_1 = f(
+        L"CreateEmptyColorMesh Later",
+        pattern.c_str(),
+        (size_t)ptr1,
+        1
+    );
+    ptr_cache.push_back(ptr1_1);

    // CreateVertexIDBuffer
-    auto ptr2 = f(L"CreateVertexIDBuffer", "68 ?? ?? ?? ?? 68 00 80 00 00 6A 04", (size_t)ptr1_1, 6);
-    auto ptr2_1 = f(L"CreateVertexIDBuffer Later", "68 00 80 00 00 50 8B", (size_t)ptr2, 1);
+    pattern = "68 ?? ?? ?? ?? 68 00 80 00 00 6A 04";
+    auto* ptr2 = f(
+        L"CreateVertexIDBuffer",
+        pattern.c_str(),
+        (size_t)ptr1_1,
+        6
+    );
+    ptr_cache.push_back(ptr2);

+    pattern = "68 00 80 00 00 50 8B";
+    auto* ptr2_1 = f(
+        L"CreateVertexIDBuffer Later",
+        pattern.c_str(),
+        (size_t)ptr2,
+        1
+    );
+    ptr_cache.push_back(ptr2_1);
+
+    auto* ptr3 = f(
+        L"Unknown",
+        "0F B6 C0 50 68 00 80 00 00 53 8B CF E8 ?? ?? ?? ??",
+        (size_t)ptr2,
+        5
+    );
+    ptr_cache.push_back(ptr3);
    // Not known
-    auto ptr3 = f(L"Unknown", "0F B6 C0 50 68 00 80 00 00 53 8B CF E8 ?? ?? ?? ??", (size_t)ptr1, 5);

-    if (ptr1 == nullptr
-        || ptr1_1 == nullptr
-        || ptr2 == nullptr
-        || ptr2_1 == nullptr
-        || ptr3 == nullptr
-    ) {
+    if (std::ranges::any_of(ptr_cache, [](void* ptr) { return ptr == nullptr; })) {
        MessageBoxW(NULL, L"未能正常应用补丁，patch 未生效，请联系开发者\n这只是一个警告，可能不影响游戏运行", L"L4D2 Fix", MB_OK);
    } else {
        std::fstream file(startup_check, std::ios::out);
@@ -150,5 +224,5 @@ BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserv
    return TRUE;
 }

-
+// Detour needs at least on exported function
 void __declspec(dllexport) kuriko_export() {}
@@ -1,4 +1,8 @@
-#include "stdafx.h"
+#include <cassert>
+#include <windows.h>
+#include <cstdint>
+#include <cstddef>
+#include <vector>

 namespace Memory
 {
@@ -52,7 +56,12 @@ namespace Memory
        auto s = patternBytes.size();
        auto d = patternBytes.data();

-        for (auto i = offset; i < sizeOfImage - s; ++i) {
+        auto new_offset = 0;
+        if (offset != 0) {
+            assert((intptr_t)offset > (intptr_t)&scanBytes[0]);
+            new_offset = offset - (intptr_t)&scanBytes[0];
+        }
+        for (auto i = new_offset; i < sizeOfImage - s; ++i) {
            bool found = true;
            for (auto j = 0ul; j < s; ++j) {
                if (scanBytes[i + j] != d[j] && d[j] != -1) {
@@ -87,21 +96,3 @@ namespace Memory
        return (address + 4 + *reinterpret_cast<std::int32_t*>(address));
    }
 }
-
-// namespace Util
-// {
-//     std::pair<int, int> GetPhysicalDesktopDimensions() {
-//         if (DEVMODE devMode{ .dmSize = sizeof(DEVMODE) }; EnumDisplaySettings(nullptr, ENUM_CURRENT_SETTINGS, &devMode))
-//             return { devMode.dmPelsWidth, devMode.dmPelsHeight };
-
-//         return {};
-//     }
-
-//     int HexStringToInt(const std::string& hexString) {
-//         int num;
-//         std::stringstream ss;
-//         ss << std::hex << hexString;
-//         ss >> num;
-//         return num;
-//     }
-// }
@@ -1,13 +0,0 @@
-#pragma once
-
-#define WIN32_LEAN_AND_MEAN
-
-#include <cstdlib>
-#include <cassert>
-#include <windows.h>
-#include <fstream>
-#include <iostream>
-#include <filesystem>
-#include <string>
-#include <cstdint>
-#include <cstddef>
@@ -1,14 +0,0 @@
-{
-  "default-registry": {
-    "kind": "git",
-    "baseline": "f523208df4ae467436dc2d2eeab594fed240d552",
-    "repository": "https://github.com/microsoft/vcpkg"
-  },
-  "registries": [
-    {
-      "kind": "artifact",
-      "location": "https://github.com/microsoft/vcpkg-ce-catalog/archive/refs/heads/main.zip",
-      "name": "microsoft"
-    }
-  ]
-}
@@ -1,6 +0,0 @@
-{
-  "dependencies": [
-    "spdlog",
-    "minhook"
-  ]
-}
@@ -0,0 +1,36 @@
+-- add_requires("microsoft-proxy 2.4.0")
+add_rules("mode.debug", "mode.release")
+add_rules("plugin.compile_commands.autoupdate")
+
+set_languages("cxx20", "c++20")
+
+set_plat("windows")
+set_arch("x86")  -- Use "x64" for 64-bit builds
+
+add_requires("spdlog")
+add_requires("vcpkg::detours")
+
+-- local name = "version"
+-- target(name)
+--     set_kind("shared")
+--     add_files("src/dllmain.cpp")
+--     add_packages("spdlog")
+--     add_links("user32", "gdi32")
+--     add_linkdirs("$(projectdir)/lib")
+--     -- add_files(string.format("lib/%s.def", name), string.format("lib/%s.asm", name))
+--     add_files(string.format("lib/%s.def", name))
+
+local name = "kpatch"
+target(name)
+    set_kind("shared")
+    add_files("src/dllmain.cpp")
+    add_packages("spdlog", "vcpkg::detours")
+    add_links("user32", "gdi32")
+
+local name = "left4dead2_fix"
+target(name)
+    set_kind("binary")
+    add_files("launcher/main.cpp")
+    add_files("assets/app.rc")
+    add_links("user32", "gdi32")
+    add_packages("vcpkg::detours")