#include "Memory.hpp"; #include "Maths.hpp"; #include "ObfuscateString.h" #include #include #include #include // Constants const std::string PLUGIN_NAME = "FNAF_SOTM"; const std::string PLUGIN_LOG = PLUGIN_NAME + ".log"; const std::string gameExecutable = "FNAF_SOTM-Win64-Shipping.exe"; // Logger std::shared_ptr logger; // Plugin states static bool AOBScanDone = false; static bool g_fix_enabled = false; static bool g_fov_fix_enabled = false; static bool g_hor_plus_fix_enabled = false; static bool g_DOF_fix_enabled = false; static bool g_FPS_fix_enabled = false; static int g_AdditionalValue = 0; // Shared values static float g_FOV_In = 0; static float g_FOV_Out = 0; // AOB Scan pointers static uint8_t* FOVaddress = nullptr; static uint8_t* HORPLUSaddress = nullptr; static uint8_t* DOFaddress = nullptr; static uint8_t* FPSaddress = nullptr; // Hooking static SafetyHookMid FOVHook{}; // Prototypes static void FOVFixEnabled(bool fix_enabled); static void HORPlusFixEnabled(bool fix_enabled); static void DOFFixEnabled(bool fix_enabled); static void FPSFixEnabled(bool fix_enabled); extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled) { g_fix_enabled = enabled; if (g_fix_enabled && !AOBScanDone) { logger->info("--------------- AOB scan started ---------------"); if (FOVaddress == nullptr) { constexpr auto FOVStringObfuscated = make_obfuscated<0x4A>("EB ?? F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? 8B 83 ?? ?? ?? ?? 89"); FOVaddress = Memory::AOBScan(gameExecutable, FOVStringObfuscated.decrypt(), PAGE_EXECUTE_READ); //"FNAF_SOTM-Win64-Shipping.exe" + 2BC96B0 - EB 08 - jmp "FNAF_SOTM-Win64-Shipping.exe" + 2BC96BA //"FNAF_SOTM-Win64-Shipping.exe" + 2BC96B2 - F3 0F 10 83 F8 01 00 00 - movss xmm0, [rbx + 000001F8] //"FNAF_SOTM-Win64-Shipping.exe" + 2BC96BA - F3 0F 11 47 18 - movss[rdi + 18], xmm0 //"FNAF_SOTM-Win64-Shipping.exe" + 2BC96BF - 8B 83 08 02 00 00 - mov eax, [rbx + 00000208] //"FNAF_SOTM-Win64-Shipping.exe" + 2BC96C5 - 89 47 2C - mov[rdi + 2C], eax if (!FOVaddress) logger->warn("FOV signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else { logger->info("FOV signature found at address: 0x{:X}.", reinterpret_cast(FOVaddress)); FOVaddress += 0xa; // Offset for the target opcode } } if (HORPLUSaddress == nullptr) { constexpr auto HORPLUSStringObfuscated = make_obfuscated<0x4A>("41 0F ?? ?? ?? ?? ?? ?? 48 8D ?? ?? ?? ?? ?? 4C ?? ?? 4D ?? ?? E8"); HORPLUSaddress = Memory::AOBScan(gameExecutable, HORPLUSStringObfuscated.decrypt(), PAGE_EXECUTE_READ); //"FNAF_SOTM-Win64-Shipping.exe" + 2E2D3F3 - 0F 11 56 40 - movups[rsi + 40], xmm2 //"FNAF_SOTM-Win64-Shipping.exe" + 2E2D3F7 - 0F 85 95 00 00 00 - jne "FNAF_SOTM-Win64-Shipping.exe" + 2E2D492 //"FNAF_SOTM-Win64-Shipping.exe" + 2E2D3FD - 41 0F B6 96 94 00 00 00 - movzx edx,byte ptr [r14+00000094] //"FNAF_SOTM-Win64-Shipping.exe" + 2E2D405 - 48 8D 8D D0 00 00 00 - lea rcx, [rbp + FNAF_SOTMCore.dtor_list_head + A0] //"FNAF_SOTM-Win64-Shipping.exe" + 2E2D40C - 4C 8B CE - mov r9, rsi if (!HORPLUSaddress) logger->warn("HOR+ signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else logger->info("HOR+ signature found at address: 0x{:X}.", reinterpret_cast(HORPLUSaddress)); } if (DOFaddress == nullptr) { constexpr auto DOFStringObfuscated = make_obfuscated<0x4A>("8B ?? ?? E8 ?? ?? ?? ?? 8B ?? E8 ?? ?? ?? ?? 84 ?? 74 ?? 48"); DOFaddress = Memory::AOBScan(gameExecutable, DOFStringObfuscated.decrypt(), PAGE_EXECUTE_READ); //"FNAF_SOTM-Win64-Shipping.exe" + 1BBE160 - 48 8B 05 D1 73 AF 03 - mov rax, ["FNAF_SOTM-Win64-Shipping.exe" + 56B5538] //"FNAF_SOTM-Win64-Shipping.exe" + 1BBE167 - 48 8B CB - mov rcx, rbx //"FNAF_SOTM-Win64-Shipping.exe" + 1BBE16A - 8B 78 04 - mov edi, [rax + 04] //"FNAF_SOTM-Win64-Shipping.exe" + 1BBE16D - E8 2E 2C 47 01 - call "FNAF_SOTM-Win64-Shipping.exe" + 3030DA0 //"FNAF_SOTM-Win64-Shipping.exe" + 1BBE172 - 8B C8 - mov ecx, eax if (!DOFaddress) logger->warn("DOF signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else { logger->info("DOF signature found at address: 0x{:X}.", reinterpret_cast(DOFaddress)); } } if (FPSaddress == nullptr) { constexpr auto FPSStringObfuscated = make_obfuscated<0x4A>("F3 0F ?? ?? ?? EB ?? 0F ?? ?? 48 8B ?? ?? ?? 0F"); FPSaddress = Memory::AOBScan(gameExecutable, FPSStringObfuscated.decrypt(), PAGE_EXECUTE_READ); //"FNAF_SOTM-Win64-Shipping.exe" + 314F2E4 - 3B 05 EE B7 45 02 - cmp eax, ["FNAF_SOTM-Win64-Shipping.exe" + 55AAAD8] //"FNAF_SOTM-Win64-Shipping.exe" + 314F2EA - 0F 95 C3 - setne bl //"FNAF_SOTM-Win64-Shipping.exe" + 314F2ED - F3 0F 10 04 9F - movss xmm0, [rdi + rbx * 4] //"FNAF_SOTM-Win64-Shipping.exe" + 314F2F2 - EB 03 - jmp "FNAF_SOTM-Win64-Shipping.exe" + 314F2F7 //"FNAF_SOTM-Win64-Shipping.exe" + 314F2F4 - 0F 28 C6 - movaps xmm0, xmm6 if (!FPSaddress) logger->warn("FPS cap signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else logger->info("FPS cap signature found at address: 0x{:X}.", reinterpret_cast(FPSaddress)); if (FOVaddress && HORPLUSaddress && DOFaddress && FPSaddress) { logger->info("All AOB signatures found. Ready to patch..."); AOBScanDone = true; } logger->info("--------------- AOB scan finished ---------------"); } } if (g_fix_enabled) { if (FOVaddress) FOVFixEnabled(g_fov_fix_enabled); if (HORPLUSaddress) HORPlusFixEnabled(g_hor_plus_fix_enabled); if (DOFaddress) DOFFixEnabled(g_DOF_fix_enabled); if (FPSaddress) FPSFixEnabled(g_FPS_fix_enabled); } else { if (FOVaddress) FOVFixEnabled(false); if (HORPLUSaddress) HORPlusFixEnabled(false); if (DOFaddress) DOFFixEnabled(false); if (FPSaddress) FPSFixEnabled(false); logger->info("All fixes disabled."); } } // Setters for Reshade addon call extern "C" __declspec(dllexport) void SetFOVFixEnabled(bool enabled, bool init) { g_fov_fix_enabled = enabled; if (!init) FOVFixEnabled(g_fov_fix_enabled); // FOV fix must be enabled when aspect ratio is too to compensate FOV } extern "C" __declspec(dllexport) void SetHORPlusFixEnabled(bool enabled, bool init) { g_hor_plus_fix_enabled = enabled; if (!init) HORPlusFixEnabled(g_hor_plus_fix_enabled); } extern "C" __declspec(dllexport) void SetDOFFixEnabled(bool enabled, bool init) { g_DOF_fix_enabled = enabled; if (!init) DOFFixEnabled(g_DOF_fix_enabled); } extern "C" __declspec(dllexport) void SetFPSFixEnabled(bool enabled, bool init) { g_FPS_fix_enabled = enabled; if (!init) FPSFixEnabled(g_FPS_fix_enabled); } extern "C" __declspec(dllexport) void SetFOV(int fov) { g_AdditionalValue = fov; } // Getters for Reshade addon call extern "C" __declspec(dllexport) float GetFOVIn() { return g_FOV_In; } extern "C" __declspec(dllexport) float GetFOVOut() { return g_FOV_Out; } // Injection function static void FOVFixEnabled(bool fix_enabled) { if (g_fix_enabled && fix_enabled && FOVaddress) { if (!FOVHook) { // Hook only once FOVHook = safetyhook::create_mid(FOVaddress, [](SafetyHookContext& ctx) { g_FOV_In = ctx.xmm0.f32[0]; g_FOV_Out = ctx.xmm0.f32[0] += (g_fov_fix_enabled ? g_AdditionalValue : 0); }); } else FOVHook.enable(); logger->info("FOV fix enabled"); } if (!fix_enabled) { if (FOVHook) FOVHook.disable(); logger->info("FOV fix disabled"); } } // Memory patch functions static void HORPlusFixEnabled(bool fix_enabled) { if (g_fix_enabled && fix_enabled && HORPLUSaddress) { Memory::PatchBytes(HORPLUSaddress, "\x31\xD2\x90\x90\x90\x90\x90\x90", 8); // xor edx,edx AspectRatioAxisConstraint=AspectRatio_MaintainYFOV logger->info("HOR+ fix enabled"); } if (!fix_enabled && HORPLUSaddress) { Memory::RestoreBytes(HORPLUSaddress); logger->info("HOR+ fix disabled"); } } static void DOFFixEnabled(bool fix_enabled) { if (g_fix_enabled && fix_enabled && DOFaddress) { Memory::PatchBytes(DOFaddress, "\x31\xFF\x90", 3); // xor edi,edi r.DepthOfFieldQuality = 0 logger->info("Depth of field fix enabled"); } if (!fix_enabled && DOFaddress) { Memory::RestoreBytes(DOFaddress); logger->info("Depth of field fix disabled"); } } static void FPSFixEnabled(bool fix_enabled) { if (g_fix_enabled && fix_enabled && FPSaddress) { Memory::PatchBytes(FPSaddress, "\x0F\x57\xC0\x90\x90", 5); // xorps xmm0,xmm0 (0 = unlimited FPS) logger->info("FPS cap fix enabled"); } if (!fix_enabled && FPSaddress) { Memory::RestoreBytes(FPSaddress); logger->info("FPS cap fix disabled"); } } // Initialisation de spdlog avec format personnalisé static void InitializeLogger() { try { logger = spdlog::basic_logger_mt("Fixlib", PLUGIN_LOG, true); spdlog::set_default_logger(logger); // Format : [YYYY-MM-DD HH:MM:SS] [INFO] message spdlog::set_pattern("[%Y-%m-%d %H:%M:%S] [%^%l%$] %v"); spdlog::set_level(spdlog::level::debug); logger->flush_on(spdlog::level::debug); // Flush automatically } catch (const spdlog::spdlog_ex& ex) { std::string plugin_error_message = "Could not open " + PLUGIN_LOG; MessageBoxA(nullptr, plugin_error_message.c_str(), "Logger Error", MB_ICONERROR | MB_OK); } } // Standard dll entry BOOL APIENTRY DllMain(HMODULE hModule, DWORD reason, LPVOID) { if (reason == DLL_PROCESS_ATTACH) { InitializeLogger(); logger->info("Plugin {} loaded.", PLUGIN_NAME); } else if (reason == DLL_PROCESS_DETACH) { logger->info("Plugin {} unloaded.", PLUGIN_NAME); spdlog::drop_all(); } return TRUE; }