From b340abbf626c6f1fe4da52f9ae9d40453e18ac45 Mon Sep 17 00:00:00 2001 From: Emmanuel AYME Date: Sat, 14 Mar 2026 14:20:31 +0100 Subject: [PATCH] Add The occultist fixes and cheats --- TheOccultist/dllmain.cpp | 285 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 TheOccultist/dllmain.cpp diff --git a/TheOccultist/dllmain.cpp b/TheOccultist/dllmain.cpp new file mode 100644 index 0000000..a6206c0 --- /dev/null +++ b/TheOccultist/dllmain.cpp @@ -0,0 +1,285 @@ +#include "CommonHeaders.h" +#include "UEngine.hpp" +#include "UETools.hpp" +#include "UEvars.hpp" +#include "Logger.hpp" +#include "SDK/Basic.hpp" +#include "SDK/Engine_classes.hpp" +#include "SDK/CoreUObject_structs.hpp" +using namespace SDK; + +// Constants +const std::string PLUGIN_NAME = "TheOccultist"; +const std::string PLUGIN_LOG = PLUGIN_NAME + ".log"; +constexpr ULONGLONG DEFAULT_DELAY_BETWEEN_TICK = 500; // Used for retrieving Game resolution + +// Logger +std::shared_ptr logger; + +// Screen informations +static int screenWidth = GetSystemMetrics(SM_CXSCREEN); +static int screenHeight = GetSystemMetrics(SM_CYSCREEN); +static int maxScreeHeight = screenHeight; +static float g_AspectRatio = (float)screenWidth / screenHeight; +float baseAspect = 1.777778f; + +// Plugin states +static bool AOBScanDone = false; +static bool g_Console = false; +static bool g_fix_enabled = false; +static bool g_fov_fix_enabled = false; +static bool g_ultrawide_fix_enabled = false; +static bool g_HUD_fix_enabled = false; +static bool g_Camera_fix_enabled = false; +static bool g_DOF_fix_enabled = false; +static bool g_Fog_fix_enabled = false; +static bool g_TimeDilation_fix_enabled = false; +static int g_AdditionalFOVValue = 0; +static float g_WorldTimeDilationValue = 1.f; +static bool user_inputs_logged = false; + +// Shared values +static float g_FOV_In = 80.f; +static float g_CompensatedFOV = 80.f; +static float g_FOV_Out = 80.f; + +// AOB Scan pointers +static uint8_t* FOVaddress = nullptr; +static uint8_t* DOFaddress = nullptr; +static uint8_t* Fogaddress = nullptr; +static uint8_t* CameraComponentaddress = nullptr; +static uint8_t* WorldTimedilationaddress = nullptr; +static uint8_t* CameraStructaddress = nullptr; + +// Hooking +static SafetyHookMid FOVHook{}; +static SafetyHookMid PEHook{}; +static SafetyHookMid WorldTimeDilationHook{}; +static SafetyHookMid CameraStruct1Hook{}; + +// Prototypes +static void FOVFixEnabled(); +static void UltraWideFixEnabled(GameFixes fix); +static void DOFFixEnabled(); +static void FogFixEnabled(); +static void EnableConsole(); +static void EnableCheats(Cheat cheat); +static void ProcessEvent(); + +extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled, bool init) { + g_fix_enabled = enabled; + if (!AOBScanDone) { // Unreal Engine 5.4.4 + logger->info("--------------- AOB scan started ---------------"); + constexpr auto CameraComponentStringObfuscated = make_obfuscated<0xF3>("EB ?? F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? 8B 83"); + constexpr auto FOVStringObfuscated = make_obfuscated<0xF3>("77 ?? 48 ?? ?? FF 90 ?? ?? ?? ?? F3 0F ?? ?? ?? 48 83 ?? ?? C3"); + constexpr auto DOFStringObfuscated = make_obfuscated<0xC1>("8B ?? ?? 48 ?? ?? E8 ?? ?? ?? ?? 0F ?? ?? 48 6B ?? ?? 48 8D"); + constexpr auto FogStringObfuscated = make_obfuscated<0x75>("74 ?? 48 8B ?? ?? ?? ?? ?? 83 ?? ?? ?? 75 ?? 40 ?? ?? EB ?? 40 ?? ?? 48 8B"); + constexpr auto WorldTimeDilationStringObfuscated = make_obfuscated<0x59>("F3 0F 10 ?? ?? ?? ?? ?? F3 0F 59 ?? ?? ?? ?? ?? F3 0F 59 ?? ?? ?? ?? ?? C3"); + constexpr auto CameraStruct1StringObfuscated = make_obfuscated<0x48>("48 89 ?? ?? ?? 57 48 83 ?? ?? 0F ?? ?? 48 8B FA 48 ?? ?? 0F ?? ?? F2 0F 10"); + + using AOBScan::Make; + using OffsetScan::Make; + // Prepare all data for scanning + std::vector signatures = { + Make(&CameraComponentaddress, CameraComponentStringObfuscated, "Camera component"), + Make(&FOVaddress, FOVStringObfuscated, "FOV"), + Make(&CameraStructaddress, CameraStruct1StringObfuscated, "Camera"), + Make(&DOFaddress, DOFStringObfuscated, "DOF"), + Make(&Fogaddress, FogStringObfuscated, "Fog"), + Make(&WorldTimedilationaddress, WorldTimeDilationStringObfuscated, "World time dilation") + }; + // Scan all signature in a batch + Memory::AOBScanBatch(signatures, logger); + + if (FOVaddress && DOFaddress && Fogaddress && WorldTimedilationaddress && CameraComponentaddress && CameraStructaddress) + logger->info("All AOB signatures found. Ready to patch..."); + + if (!GObjectsaddress || !AppendStringaddress || !ProcessEventaddress) { + logger->info("------------ UEngine offsets search ------------"); + uint8_t* baseModule = reinterpret_cast(GetModuleHandleA(nullptr)); // Get game base address + + constexpr auto GObjetcsStringObfuscated = make_obfuscated<0x8D>("48 8B ?? ?? ?? ?? ?? 48 8B ?? ?? 48 8D ?? ?? EB ?? 33"); + constexpr auto AppendStringStringObfuscated = make_obfuscated<0x80>("48 89 ?? ?? ?? 48 89 ?? ?? ?? 57 48 83 ?? ?? 80 3D ?? ?? ?? ?? ?? 48 ?? F2 8B ?? 48 ?? ?? 74 ?? 4C 8D ?? ?? ?? ?? ?? EB ?? 48 8D ?? ?? ?? ?? ?? E8 ?? ?? ?? ?? 4C"); + constexpr auto ProcessEventStringObfuscated = make_obfuscated<0x56>("40 ?? 56 57 41 ?? 41 ?? 41 ?? 41 ?? 48 81 ?? ?? ?? ?? ?? 48 8D ?? ?? ?? 48 89 ?? ?? ?? ?? ?? 48 8B ?? ?? ?? ?? ?? 48 ?? ?? 48 89 ?? ?? ?? ?? ?? 4D"); + + // Prepare all data for scanning + std::vector UEoffsetsScans = { + Make(&GObjectsaddress, GObjetcsStringObfuscated, "GObjects", OffsetCalcType::GetOffsetFromOpcode, &Offsets::GObjects, 0x3), + Make(&AppendStringaddress, AppendStringStringObfuscated, "AppendString", OffsetCalcType::UE_CalculateOffset, &Offsets::AppendString), + Make(&ProcessEventaddress, ProcessEventStringObfuscated, "ProcessEvent", OffsetCalcType::UE_CalculateOffset, &Offsets::ProcessEvent) + }; + // Retrieve all Unreal Engine offsets in a batch + Memory::OffsetScanBatch(UEoffsetsScans, baseModule, logger, ""); + } + logger->info("-------------- Fixes initialisation -------------"); + AOBScanDone = true; + } + + if (!init && FOVaddress) FOVFixEnabled(); + if (!init && CameraStructaddress) UltraWideFixEnabled(GameFixes::UltraWide); + if (!init && DOFaddress) DOFFixEnabled(); + if (!init && Fogaddress) FogFixEnabled(); + if (!init && WorldTimedilationaddress) { + EnableCheats(Cheat::TimeDilation); + } + ProcessEvent(); +} + +// Setters for Reshade addon call +extern "C" __declspec(dllexport) void SetFixesEnabled(GameFixes fix, bool enabled) { // Set each fix individually + if (fix == GameFixes::DevConsole) { g_Console = enabled; EnableConsole(); } + if (fix == GameFixes::FOV) { g_fov_fix_enabled = enabled; FOVFixEnabled(); } + if (fix == GameFixes::UltraWide) { g_ultrawide_fix_enabled = enabled; UltraWideFixEnabled(GameFixes::UltraWide); } + if (fix == GameFixes::DOF) { g_DOF_fix_enabled = enabled; DOFFixEnabled(); } + if (fix == GameFixes::Fog) { g_Fog_fix_enabled = enabled; FogFixEnabled(); } + if (fix == GameFixes::TimeDilation) { g_TimeDilation_fix_enabled = enabled; EnableCheats(Cheat::TimeDilation); } +} + +extern "C" __declspec(dllexport) void SetValues(GameSetting setting, float value) { + if (setting == GameSetting::FOV) g_AdditionalFOVValue = (int)(value); + if (setting == GameSetting::WorldTimeDilation) g_WorldTimeDilationValue = value; +} +// Getters for Reshade addon call +extern "C" __declspec(dllexport) void GetGameInfos(GameInfos* infos) { + if (!infos) return; + + infos->FOVIn = g_FOV_In; + infos->CompensatedFOV = g_CompensatedFOV; + infos->FOVOut = g_FOV_Out; + infos->consoleEnabled = g_Console_Enabled; + infos->screenWidth = screenWidth; + infos->screenHeight = screenHeight; + infos->aspectRatio = g_AspectRatio; +} + +static bool g_inCutscene = false; +// Code injection functions +static ULONGLONG lastScanTick = 0; // Last time tick was called +static void ProcessEvent() { + if (!PEHook && ProcessEventaddress) { + PEHook = safetyhook::create_mid(ProcessEventaddress + 0xc, + [](SafetyHookContext& ctx) { + UObject* object = (UObject*)ctx.rcx; + UFunction* func = (UFunction*)ctx.rdx; + + ULONGLONG now = GetTickCount64(); + if (now - lastScanTick >= DEFAULT_DELAY_BETWEEN_TICK) { // Get game resolution every 500 ms, (like when alt-tabbing or changing settings) + lastScanTick = now; + GetResolution(screenWidth, screenHeight, g_AspectRatio); + if (screenHeight > maxScreeHeight) { + screenHeight = maxScreeHeight; + g_AspectRatio = (float)screenWidth / screenHeight; + } + } + + if (object && func) { + std::string funcName = func->GetName(); + std::string objectName = object->GetName(); + } + }); + } +} + +static void FOVFixEnabled() { + if (FOVaddress) { + if (!FOVHook) { // Hook only once + FOVHook = safetyhook::create_mid(FOVaddress + 0x10, + [](SafetyHookContext& ctx) { + g_FOV_In = ctx.xmm0.f32[0]; + if (g_fix_enabled && g_ultrawide_fix_enabled) + ctx.xmm0.f32[0] = Maths::CompensateHorizontalFOV(g_FOV_In, baseAspect, g_AspectRatio); + g_CompensatedFOV = ctx.xmm0.f32[0]; + ctx.xmm0.f32[0] += (g_fix_enabled && g_fov_fix_enabled && !g_inCutscene ? g_AdditionalFOVValue : 0); + g_FOV_Out = ctx.xmm0.f32[0]; + }); + } + } + logger->info("FOV fix {}", g_fix_enabled && g_fov_fix_enabled ? "enabled" : "disabled"); +} + +static void UltraWideFixEnabled(GameFixes fix) { + if (g_fix_enabled && g_ultrawide_fix_enabled && CameraComponentaddress && CameraStructaddress) { // Taken FROM UUU + if (!CameraStruct1Hook) { + CameraStruct1Hook = safetyhook::create_mid(CameraStructaddress, + [](SafetyHookContext& ctx) { + if (!ctx.rdx) return; + FMinimalViewInfo* view = (FMinimalViewInfo*)ctx.rdx; + if (!view) return; + + if (g_fix_enabled && g_ultrawide_fix_enabled) { + view->bConstrainAspectRatio = false; + view->AspectRatio = g_AspectRatio; + } + else { + view->bConstrainAspectRatio = true; + view->AspectRatio = baseAspect; + } + }); + } + Memory::PatchBytes(CameraComponentaddress + 0x18, "\x31\xC9\x90\x90\x90\x90\x90", 7); // bConstrainAspectRatio = 0 + } + if (!(g_fix_enabled && g_ultrawide_fix_enabled) && CameraComponentaddress && CameraStructaddress) + Memory::RestoreBytes(CameraComponentaddress + 0x18); + + logger->info("Ultrawide fix {}", g_fix_enabled && g_ultrawide_fix_enabled ? "enabled" : "disabled"); +} + +// Cheats +static void EnableCheats(Cheat cheat) { + if (WorldTimedilationaddress && !WorldTimeDilationHook) { + WorldTimeDilationHook = safetyhook::create_mid(WorldTimedilationaddress + 0x10, + [](SafetyHookContext& ctx) { + // From AWorldSettings retrieved from world->K2_GetWorldSettings() + ctx.xmm0.f32[0] *= g_TimeDilation_fix_enabled ? g_WorldTimeDilationValue : 1.f; + }); + } + if (cheat == Cheat::TimeDilation) logger->info("Time dilation cheat {}", g_TimeDilation_fix_enabled ? "enabled" : "disabled"); +} + +// Memory patch fixes +static void DOFFixEnabled() { + if (g_fix_enabled && g_DOF_fix_enabled && DOFaddress) { + Memory::PatchBytes(DOFaddress, "\x31\xFF\x90", 3); // xor edi,edi r.DepthOfFieldQuality = 0 + logger->info("Depth of field fix enabled"); + } + if (!(g_fix_enabled && g_DOF_fix_enabled) && DOFaddress) { + Memory::RestoreBytes(DOFaddress); + logger->info("Depth of field fix disabled"); + } +} + +static void FogFixEnabled() { + if (g_fix_enabled && g_Fog_fix_enabled && Fogaddress) { + Memory::PatchBytes(Fogaddress, "\xEB", 1); // jmp -> r.Fog 0 + logger->info("Fog fix enabled"); + } + if (!(g_fix_enabled && g_Fog_fix_enabled) && Fogaddress) { + Memory::RestoreBytes(Fogaddress); + logger->info("Fog fix disabled"); + } +} +// UE Console creation +static void EnableConsole() { + if (g_Console_Enabled || !g_Console || !GObjectsaddress || !AppendStringaddress || !ProcessEventaddress) { + if (!g_Console && !user_inputs_logged) { + logger->info("------------------ User inputs ------------------"); + user_inputs_logged = true; + } + return; + } + + logger->info("-------------- Console re-enabling --------------"); + ReactivateDevConsole(logger); +} +// Standard dll entry +BOOL APIENTRY DllMain(HMODULE hModule, DWORD reason, LPVOID) { + if (reason == DLL_PROCESS_ATTACH) { + logger = InitializeLogger("The Occultist", PLUGIN_LOG); + logger->info("Plugin {} loaded.", PLUGIN_NAME); + } + else if (reason == DLL_PROCESS_DETACH) { + logger->info("Plugin {} unloaded.", PLUGIN_NAME); + spdlog::drop_all(); + } + return TRUE; +} \ No newline at end of file