#define NOMINMAX #include #include "CommonHeaders.h" #include "GameFixes.h" #include "GameInformations.h" #include "ObfuscateString.h" #include "Memory.hpp" #include "Maths.hpp" #include "UEngine.hpp" #include "SDK/Basic.hpp" #include "SDK/Engine_classes.hpp" #include "SDK/Phoenix_classes.hpp" using namespace SDK; // Constants const std::string PLUGIN_NAME = "TheCallistoProtocol"; const std::string PLUGIN_LOG = PLUGIN_NAME + ".log"; // Logger std::shared_ptr logger; // Screen informations static int screenWidth = GetSystemMetrics(SM_CXSCREEN); static int screenHeight = GetSystemMetrics(SM_CYSCREEN); static float aspectRatio = (float)screenWidth / screenHeight; // Plugin states static bool AOBScanDone = false; static bool g_fix_enabled = false; static bool g_camera_fix_enabled = false; static bool g_HUD_fix_enabled = false; static bool g_fov_fix_enabled = false; static bool g_CA_fix_enabled = false; static bool g_Vignetting_fix_enabled = false; static bool g_Fog_fix_enabled = false; static int g_AdditionalFOVValue = 0; static int g_CameraOffset = 0; static float g_TransitionCameraOffset = 0.f; static float g_HUDLeft = 0.f; static float g_HUDRight = 1.f; static bool g_Console = false; static bool bIsInventoryOpen = false; static bool bIsInCinematicMode = false; static bool user_inputs_logged = false; // Shared values static float g_FOV_In = 75.f; static float g_FOV_Out = 75.f; static bool g_Console_Enabled = false; // AOB Unreal Engine offsets addresses static uint8_t* GObjectsaddress = nullptr; static uint8_t* AppendStringaddress = nullptr; static uint8_t* ProcessEventaddress = nullptr; // AOB Scan pointers static uint8_t* FOVaddress = nullptr; static uint8_t* Cameraaddress = nullptr; static uint8_t* CameraObjectaddress = nullptr; static uint8_t* HUDaddress = nullptr; static uint8_t* CAaddress = nullptr; static uint8_t* Vignettingaddress = nullptr; static uint8_t* Fogaddress = nullptr; // Hooking static SafetyHookMid FOVHook{}; static SafetyHookMid CameraHook{}; static SafetyHookMid HUDHook{}; static SafetyHookMid FogHook{}; static SafetyHookMid PEHook{}; // Prototypes static void FOVFixEnabled(); static void CameraFixEnabled(); static void HUDFixEnabled(); static void DOFFixEnabled(); static void CAFixEnabled(); static void VignettingFixEnabled(); static void FogFixEnabled(); static void EnableConsole(); // Unreal Engine camera struct struct BlueprintModifyCamera_Params { float DeltaTime; // in FVector ViewLocation; // in FRotator ViewRotation; // in float FOV; // in // OUT parameters (Passed by refernce in Blueprint signature) FVector NewViewLocation; // out FRotator NewViewRotation; // out float NewFOV; // out }; extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled, bool init) { g_fix_enabled = enabled; if (g_fix_enabled && !AOBScanDone) { // Unreal Engine 4.27.2 logger->info("--------------- AOB scan started ---------------"); if (FOVaddress == nullptr) { constexpr auto FOVStringObfuscated = make_obfuscated<0x4A>("EB ?? F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? 8B"); FOVaddress = Memory::AOBScan("", FOVStringObfuscated.decrypt(), PAGE_EXECUTE_READ, logger); 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)); } if (!Cameraaddress) { constexpr auto CameraStringObfuscated = make_obfuscated<0x4A>("49 8B ?? ?? ?? ?? ?? 48 ?? ?? 74 ?? 48 8D ?? ?? ?? E8 ?? ?? ?? ?? 49 8B ?? ?? ?? ?? ?? EB"); Cameraaddress = Memory::AOBScan("", CameraStringObfuscated.decrypt(), PAGE_EXECUTE_READ); if (!Cameraaddress) logger->warn("Camera signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else logger->info("Camera grain signature found at address: 0x{:X}.", reinterpret_cast(Cameraaddress)); } if (!HUDaddress) { constexpr auto HUDStringObfuscated = make_obfuscated<0x4A>("FF ?? 48 8B ?? ?? ?? 0F ?? ?? 48 ?? ?? 0F ?? ?? 48 83"); HUDaddress = Memory::AOBScan("", HUDStringObfuscated.decrypt(), PAGE_EXECUTE_READ); if (!HUDaddress) logger->warn("HUD signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else logger->info("HUD signature found at address: 0x{:X}.", reinterpret_cast(HUDaddress)); } if (!CAaddress) { constexpr auto CAStringObfuscated = make_obfuscated<0x4A>("7F ?? 89 B3 ?? ?? ?? ?? 8B ?? ?? 39 05 ?? ?? ?? ?? 0F"); CAaddress = Memory::AOBScan("", CAStringObfuscated.decrypt(), PAGE_EXECUTE_READ); if (!CAaddress) logger->warn("Chromatic aberrations signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else logger->info("Chromatic aberrations signature found at address: 0x{:X}.", reinterpret_cast(CAaddress)); } if (Vignettingaddress == nullptr) { constexpr auto VignettingStringObfuscated = make_obfuscated<0x4A>("8B ?? 83 ?? ?? 7D ?? 89 B3"); Vignettingaddress = Memory::AOBScan("", VignettingStringObfuscated.decrypt(), PAGE_EXECUTE_READ); if (!Vignettingaddress) logger->warn("Vignetting signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else logger->info("Vignetting signature found at address: 0x{:X}.", reinterpret_cast(Vignettingaddress)); } if (Fogaddress == nullptr) { constexpr auto FogStringObfuscated = make_obfuscated<0x4A>("83 ?? ?? ?? 75 ?? B3 ?? EB ?? 32 ?? 48 8B ?? ?? ?? 48 ?? ?? 74 ?? E8"); Fogaddress = Memory::AOBScan("", FogStringObfuscated.decrypt(), PAGE_EXECUTE_READ); if (!Fogaddress) logger->warn("Fog signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else logger->info("Fog signature found at address: 0x{:X}.", reinterpret_cast(Fogaddress)); } if (FOVaddress && Cameraaddress && HUDaddress && CAaddress && Vignettingaddress && Fogaddress) logger->info("All AOB signatures found. Ready to patch..."); AOBScanDone = true; 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<0x4A>("48 8B ?? ?? ?? ?? ?? 48 8B ?? ?? 48 8D ?? ?? EB ?? 33"); GObjectsaddress = Memory::AOBScan("", GObjetcsStringObfuscated.decrypt(), PAGE_EXECUTE_READ); constexpr auto AppendStringStringObfuscated = make_obfuscated<0x4A>("48 89 ?? ?? ?? 48 89 ?? ?? ?? 57 48 ?? ?? ?? 8B ?? 48 ?? ?? 8B ?? 44 ?? ?? ?? C1 ?? ?? 48 ?? ?? 80 3D ?? ?? ?? ?? ?? 89 ?? ?? ?? 44 89 ?? ?? ?? 74 ?? 4C 8D ?? ?? ?? ?? ?? EB ?? 48 8D ?? ?? ?? ?? ?? E8 ?? ?? ?? ?? 4C ?? ?? C6 05 ?? ?? ?? ?? ?? 48 8B ?? ?? ?? 48 ?? ?? 48 ?? ?? ?? 8D ?? ?? 49 03 ?? ?? ?? E8 ?? ?? ?? ?? 83"); AppendStringaddress = Memory::AOBScan("", AppendStringStringObfuscated.decrypt(), PAGE_EXECUTE_READ); constexpr auto ProcessEventStringObfuscated = make_obfuscated<0x4A>("40 ?? 56 57 41 ?? 41 ?? 41 ?? 41 ?? 48 81 ?? ?? ?? ?? ?? 48 8D ?? ?? ?? 48 89 ?? ?? ?? ?? ?? 48 8B ?? ?? ?? ?? ?? 48 ?? ?? 48 89 ?? ?? ?? ?? ?? 8B"); ProcessEventaddress = Memory::AOBScan("", ProcessEventStringObfuscated.decrypt(), PAGE_EXECUTE_READ); if (!GObjectsaddress) logger->warn("GObjects signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else { uint32_t gObjectsOffset = static_cast(Memory::GetOffsetFromOpcode(GObjectsaddress + 0x3) - baseModule); logger->info("GObjects offset is: 0x{:X}.", gObjectsOffset); Offsets::GObjects = static_cast(gObjectsOffset); // Update GObjects offset } if (!AppendStringaddress) logger->warn("AppendString signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else { std::optional gAppendStringOffsetOpt = UE::CalculateOffset("", AppendStringaddress); // Get Offset from opcode uint32_t gAppendStringOffset = *gAppendStringOffsetOpt; logger->info("AppendString offset is: 0x{:X}.", gAppendStringOffset); Offsets::AppendString = static_cast(gAppendStringOffset); // Update AppendString offset } if (!ProcessEventaddress) logger->warn("Process Event signature not found. Maybe your game has been updated and is no more compatible with this plugin."); else { std::optional gProcessEventOffsetOpt = UE::CalculateOffset("", ProcessEventaddress); uint32_t gProcessEventOffset = *gProcessEventOffsetOpt; logger->info("Process Event offset is: 0x{:X}.", gProcessEventOffset); Offsets::ProcessEvent = static_cast(gProcessEventOffset);// Update ProcessEvent offset } if (!init) logger->info("-------------- Fixes initialisation -------------"); } } if (init && g_fix_enabled) logger->info("-------------- Fixes initialisation -------------"); if (!init && FOVaddress) FOVFixEnabled(); if (!init && Cameraaddress) CameraFixEnabled(); if (!init && HUDaddress) HUDFixEnabled(); if (!init && CAaddress) CAFixEnabled(); if (!init && Vignettingaddress) VignettingFixEnabled(); if (!init && Fogaddress) FogFixEnabled(); if (!init && GObjectsaddress && AppendStringaddress && ProcessEventaddress) EnableConsole(); } // Setters for Reshade addon call extern "C" __declspec(dllexport) void SetFixesEnabled(GameFixes fix, bool enabled) { if (fix == GameFixes::DevConsole) { g_Console = enabled; EnableConsole(); }; if (fix == GameFixes::FOV) { g_fov_fix_enabled = enabled; FOVFixEnabled(); } if (fix == GameFixes::Camera) { g_camera_fix_enabled = enabled; CameraFixEnabled(); } if (fix == GameFixes::HUD) { g_HUD_fix_enabled = enabled; HUDFixEnabled(); } if (fix == GameFixes::ChromaticAberrations) { g_CA_fix_enabled = enabled; CAFixEnabled(); } if (fix == GameFixes::Vignetting) { g_Vignetting_fix_enabled = enabled; VignettingFixEnabled(); } if (fix == GameFixes::Fog) { g_Fog_fix_enabled = enabled; FogFixEnabled(); } } extern "C" __declspec(dllexport) void SetFOV(int fov) { g_AdditionalFOVValue = fov; } extern "C" __declspec(dllexport) void SetCameraOffset(int cameraOffset) { g_CameraOffset = cameraOffset; g_TransitionCameraOffset = (float)g_CameraOffset; } extern "C" __declspec(dllexport) void SetHUDScale(int HUDScale) { g_HUDLeft = (float)HUDScale / 100; g_HUDRight = 1.f - ((float)HUDScale / 100); } // Getters for Reshade addon call extern "C" __declspec(dllexport) void GetGameInfos(GameInfos* infos) { if (!infos) return; infos->FOVIn = g_FOV_In; infos->FOVOut = g_FOV_Out; infos->consoleEnabled = g_Console_Enabled; } // Code injection functions static void FOVFixEnabled() { if (g_fix_enabled && g_fov_fix_enabled && FOVaddress) { if (!FOVHook) { // Hook only once FOVHook = safetyhook::create_mid(FOVaddress + 0xa, [](SafetyHookContext& ctx) { g_FOV_In = ctx.xmm0.f32[0]; ctx.xmm0.f32[0] += g_AdditionalFOVValue; // Additional FOV g_FOV_Out = ctx.xmm0.f32[0]; }); } else FOVHook.enable(); logger->info("FOV fix enabled"); } if (!(g_fix_enabled && g_fov_fix_enabled) && FOVaddress) { if (FOVHook) FOVHook.disable(); logger->info("FOV fix disabled"); } } static FVector RotatorToForwardVector(const FRotator& rotator) { const float DEG_TO_RAD = 3.1415926535f / 180.0f; float cp = cosf(rotator.Pitch * DEG_TO_RAD); float sp = sinf(rotator.Pitch * DEG_TO_RAD); float cy = cosf(rotator.Yaw * DEG_TO_RAD); float sy = sinf(rotator.Yaw * DEG_TO_RAD); return FVector(cp * cy, cp * sy, sp); } static void CameraFixEnabled() { if (g_fix_enabled && g_camera_fix_enabled && ProcessEventaddress) { if (!PEHook) { PEHook = safetyhook::create_mid(ProcessEventaddress + 0xc, [](SafetyHookContext& ctx) { UObject* object = (UObject*)ctx.rcx; UFunction* func = (UFunction*)ctx.rdx; if (object && func) { std::string funcName = func->GetName(); std::string objectName = object->GetFullName(); // Detect inventory if (objectName.contains("BP_State_Inventory_C")) { if (funcName == "OnBegin") bIsInventoryOpen = true; if (funcName == "OnEnd") bIsInventoryOpen = false; } // Detect cinematics to disable temporarily camera fix if (objectName.contains("PhxCinematicsComponent")) { if (funcName == "OnAnimMontageStartedForLevelSequenceActor0") bIsInCinematicMode = true; if (funcName == "OnLevelSequenceFinishedReversePlaybackForLevelSequenceActor0") bIsInCinematicMode = false; } // Detect camera collisions to avoid world to vanish ending in character death if (objectName.contains("CameraModifier_PhxCameraRig") && funcName == "BlueprintModifyCamera") { if (bIsInCinematicMode) return; void* params = reinterpret_cast(ctx.r8); if (!params) return; BlueprintModifyCamera_Params* cameraParams = reinterpret_cast(params); static float lastSafeDistance = -1.0f; FVector start = cameraParams->ViewLocation; // --- backward direction --- FVector forward = RotatorToForwardVector(cameraParams->ViewRotation); FVector backward = forward * -1.0f; // Max distance desired float maxDistance = g_TransitionCameraOffset; FVector desired = start + (backward * maxDistance); // --- Sphere trace --- float radius = 8.0f; TArray ignoreActors; TArray hits; // Collision detection bool bHit = UKismetSystemLibrary::SphereTraceMulti( object, // WorldContextObject start, desired, radius, ETraceTypeQuery::TraceTypeQuery1, true, // bTraceComplex ignoreActors, EDrawDebugTrace::None, &hits, true, // bIgnoreSelf FLinearColor(1, 0, 0, 1), FLinearColor(0, 1, 0, 1), 0.0f ); float targetDist = maxDistance; if (bHit && hits.Num() > 0) { float best = maxDistance; float tracePadding = 10.0f; // Padding to avoid camera too close to obstacle float minAllowedDist = 5.0f; // To not approach walls for (int i = 0; i < hits.Num(); i++) { const FHitResult& hit = hits[i]; if (hit.bStartPenetrating) continue; if (hit.PenetrationDepth > 2.0f) continue; FVector local = hit.Location - start; float dist = local.Magnitude(); dist -= tracePadding; if (dist < minAllowedDist) dist = minAllowedDist; if (dist < best) best = dist; } targetDist = best; } // --- Init lastSafeDistance --- if (lastSafeDistance < 0.0f) lastSafeDistance = targetDist; // --- Lerp based on DeltaTime for smoothing rotation --- float lerpSpeed = (targetDist < lastSafeDistance) ? 12.f : 6.f; // Fast if obstacle, slow otherwise float alpha = std::clamp(lerpSpeed * cameraParams->DeltaTime, 0.0f, 1.0f); lastSafeDistance = UKismetMathLibrary::Lerp(lastSafeDistance, targetDist, alpha); lastSafeDistance = std::clamp(lastSafeDistance, 0.0f, maxDistance); // Security clamp FVector final = start + (backward * lastSafeDistance); // Final position // --- Final camera --- cameraParams->NewViewLocation = final; cameraParams->NewViewRotation = cameraParams->ViewRotation; cameraParams->NewFOV = cameraParams->FOV; } } }); } else PEHook.enable(); } if (!(g_fix_enabled && g_camera_fix_enabled) && ProcessEventaddress) { if (PEHook) PEHook.disable(); } if (g_fix_enabled && g_camera_fix_enabled && Cameraaddress) { if (!CameraHook) { CameraHook = safetyhook::create_mid(Cameraaddress, [](SafetyHookContext& ctx) { if (bIsInCinematicMode) { g_TransitionCameraOffset = 0.f; // No smooth transition to avoid fall into the world return; } // Fade in & out if (bIsInventoryOpen) { g_TransitionCameraOffset -= (float)g_CameraOffset / 40; g_TransitionCameraOffset = std::max(g_TransitionCameraOffset, 0.f); } else { // Fade out for inventory and cutscenes g_TransitionCameraOffset += (float)g_CameraOffset / 40; g_TransitionCameraOffset = std::min(g_TransitionCameraOffset,(float)g_CameraOffset); } }); } else CameraHook.enable(); logger->info("Camera fix enabled"); } if (!(g_fix_enabled && g_camera_fix_enabled) && Cameraaddress) { if (CameraHook) CameraHook.disable(); logger->info("Camera fix disabled"); } } static void HUDFixEnabled() { if (g_fix_enabled && g_HUD_fix_enabled && HUDaddress) { if (!HUDHook) { // Hook only once HUDHook = safetyhook::create_mid(HUDaddress + 0xa, [](SafetyHookContext& ctx) { ctx.xmm0.f32[0] = g_HUDLeft; ctx.xmm0.f32[1] = 0.f; ctx.xmm0.f32[2] = g_HUDRight; ctx.xmm0.f32[3] = 1.f; }); } else HUDHook.enable(); logger->info("HUD fix enabled"); } if (!(g_fix_enabled && g_HUD_fix_enabled) && HUDaddress) { if (HUDHook) HUDHook.disable(); logger->info("HUD fix disabled"); } } static void CAFixEnabled() { if (g_fix_enabled && g_CA_fix_enabled && CAaddress) { Memory::PatchBytes(CAaddress, "\x90\x90", 2); // NOP jg "HellIsUs-Win64-Shipping.exe"+3D73BD5 r.SceneColorFringeQuality = 0 logger->info("Chromatic aberrations fix enabled"); } if (!(g_fix_enabled && g_CA_fix_enabled) && CAaddress) { Memory::RestoreBytes(CAaddress); logger->info("Chromatic aberrations fix disabled"); } } // Memory patch fixes static void VignettingFixEnabled() { if (g_fix_enabled && g_Vignetting_fix_enabled && Vignettingaddress) { Memory::PatchBytes(Vignettingaddress, "\x31\xC9", 2); // xor ecx,ecx r.Tonemapper.Quality=0 logger->info("Vignetting fix enabled"); } if (!(g_fix_enabled && g_Vignetting_fix_enabled) && Vignettingaddress) { Memory::RestoreBytes(Vignettingaddress); logger->info("Vignetting fix disabled"); } } static void FogFixEnabled() { if (g_fix_enabled && g_Fog_fix_enabled && Fogaddress) { if (!FogHook) { FogHook = safetyhook::create_mid(Fogaddress, [](SafetyHookContext& ctx) { if (!ctx.rax) return; *reinterpret_cast(ctx.rax + 0x4) = g_fix_enabled && g_Fog_fix_enabled ? 0 : 1; // r.Fog = 0 }); } logger->info("Fog fix enabled"); } if (!(g_fix_enabled && g_Fog_fix_enabled) && 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 --------------"); std::thread([&]() { auto start = std::chrono::high_resolution_clock::now(); // Measure the time to renable console UEngine* Engine = nullptr; for (int i = 0; i < 10; ++i) { // gives 10 seconds to find UE Engine std::this_thread::sleep_for(std::chrono::milliseconds(1000)); Engine = UEngine::GetEngine(); if (Engine && Engine->ConsoleClass && Engine->GameViewport) break; } if (!Engine || !Engine->ConsoleClass || !Engine->GameViewport) { logger->error("Console could not be found in engine."); return; } logger->info("Console found in engine"); /* Creates a new UObject of class-type specified by Engine->ConsoleClass */ UObject* NewObject = UGameplayStatics::SpawnObject(Engine->ConsoleClass, Engine->GameViewport); if (NewObject) { logger->info("Successfully spawned console object"); // Set the console viewport so that it will be displayed Engine->GameViewport->ViewportConsole = static_cast(NewObject); // Compute console enabling duration auto end = std::chrono::high_resolution_clock::now(); std::chrono::duration elapsed = end - start; // Set the all the console shortkey to F2 for (int i = 0; i < UInputSettings::GetDefaultObj()->ConsoleKeys.Num(); i++) { UInputSettings::GetDefaultObj()->ConsoleKeys[i].KeyName = UKismetStringLibrary::Conv_StringToName(L"F2"); } logger->info("Console fully reactivated in {:.3f}s and bound to key F2", elapsed.count()); logger->info("------------------ User inputs ------------------"); g_Console_Enabled = true; } else { logger->error("Could not spawn console object"); logger->info("------------------ User inputs ------------------"); } }).detach(); } static void InitializeLogger() { try { std::filesystem::path log_path = std::filesystem::absolute(PLUGIN_LOG); if (std::filesystem::exists(log_path)) std::filesystem::remove(log_path); logger = std::make_shared("The Callisto Protocol", std::make_shared(PLUGIN_LOG, 10 * 1024 * 1024, 1)); logger->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; }