Initial Samson fixes and cheats

This commit is contained in:
2026-04-10 00:18:11 +02:00
parent db688c2ae0
commit 42808485a8

376
Samson/dllmain.cpp Normal file
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#include <unordered_set>
#include "CommonHeaders.h"
#include "CommonUEHeaders.h"
using namespace SDK;
// Constants
const std::string PLUGIN_NAME = "Samson";
const std::string PLUGIN_LOG = PLUGIN_NAME + ".log";
constexpr ULONGLONG DEFAULT_DELAY_BETWEEN_TICK = 100; // Used ProcessEvent
constexpr ULONGLONG DEFAULT_DELAY_BETWEEN_WTD_TICK = 100; // Used for World time dilation
// Logger
std::shared_ptr<spdlog::logger> logger;
// Screen informations
static int screenWidth = GetSystemMetrics(SM_CXSCREEN);
static int screenHeight = GetSystemMetrics(SM_CYSCREEN);
float g_AspectRatio = (float)screenWidth / screenHeight;
// Plugin states
static bool AOBScanDone = false;
static std::atomic<bool> g_fix_enabled = false;
static std::atomic<bool> g_fov_fix_enabled = false;
static std::atomic<bool> g_HUD_fix_enabled = false;
static std::atomic<bool> g_Camera_fix_enabled = false;
static std::atomic<bool> g_Letterboxing_fix_enabled = false;
static std::atomic<bool> g_CA_fix_enabled = false;
static std::atomic<bool> g_Vignetting_fix_enabled = false;
static std::atomic<bool> g_Fog_fix_enabled = false;
static std::atomic<bool> g_TimeDilation_fix_enabled = false;
static std::atomic<bool> g_GodMode_fix_enabled = false;
static std::atomic<bool> g_Stealth_fix_enabled = false;
static int g_AdditionalFOVValue = 0;
static float g_CameraMultiplier = 1.f;
static float g_WorldTimeDilationValue = 1.f;
static float g_AITimeDilationValue = 1.f;
static int g_HUDOffsets = 0;
static int g_UIOffsets = 0;
static float g_PlayerHealth = 0.f;
// Shared values
static float g_FOV_In = 75.f;
static float g_FOV_Out = 75.f;
static float g_CameraIn = 189.26f;
static float g_CameraOut = 189.26f;
// AOB Scan pointers
static uint8_t* CameraComponentaddress = nullptr;
static uint8_t* Cameraaddress = nullptr;
static uint8_t* WorldTimedilationaddress = nullptr;
static uint8_t* Timedilationaddress = nullptr;
// Hooking
static SafetyHookMid FOVHook{};
static SafetyHookMid CameraHook{};
static SafetyHookMid PEHook{};
static SafetyHookMid WorldTimeDilationHook{};
static SafetyHookMid TimeDilationHook{};
// Prototypes
static void FOVFixEnabled();
static void CameraFixEnabled();
static void HUDUpdate(bool writeLog);
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 (init) {
logger = InitializeLogger("Samson", PLUGIN_LOG);
logger->info("Plugin {} loaded.", PLUGIN_NAME);
}
if (!AOBScanDone) { // Unreal Engine 5.7.4
logger->info("--------------- AOB scan started ---------------");
constexpr auto CameraComponentStringObfuscated = make_obfuscated<0xF3>("EB ?? F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? 8B 83 ?? ?? ?? ?? 89");
constexpr auto CameraStringObfuscated = make_obfuscated<0xF3>("48 8D ?? ?? 0F ?? ?? 48 8D 8D ?? ?? ?? ?? 0F ?? ?? 0F ?? ?? F2");
constexpr auto WorldTimeDilationStringObfuscated = make_obfuscated<0xF6>("F6 81 ?? ?? ?? ?? ?? 74 ?? F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? ?? ?? ?? C3");
constexpr auto TimeDilationStringObfuscated = make_obfuscated<0x44>("F3 0F ?? ?? ?? EB ?? F3 0F ?? ?? ?? ?? ?? ?? 48 8B ?? ?? 4C ?? ?? F3 0F ?? ?? 44");
using AOBScan::Make;
using OffsetScan::Make;
// Prepare all data for scanning
std::vector<AOBScanEntry> signatures = {
Make(&CameraComponentaddress, CameraComponentStringObfuscated, "Camera component"),
Make(&Cameraaddress, CameraStringObfuscated, "Camera"),
Make(&WorldTimedilationaddress, WorldTimeDilationStringObfuscated, "World time dilation"),
Make(&Timedilationaddress, TimeDilationStringObfuscated, "Actor time dilation"),
};
// Scan all signature in a batch
Memory::AOBScanBatch(signatures, logger);
if (CameraComponentaddress && Cameraaddress && WorldTimedilationaddress && Timedilationaddress)
logger->info("All AOB signatures found. Ready to patch...");
if (!GObjectsaddress || !AppendStringaddress || !ProcessEventaddress) {
logger->info("------------ UEngine offsets search ------------");
uint8_t* baseModule = reinterpret_cast<uint8_t*>(GetModuleHandleA(nullptr)); // Get game base address
constexpr auto GObjetcsStringObfuscated = make_obfuscated<0xC7>("48 8D 05 ?? ?? ?? ?? C7 83 ?? ?? ?? ?? ?? ?? ?? ?? C6 83 ?? ?? ?? ?? ?? 48 89 05 ?? ?? ?? ?? 48");
constexpr auto GWorldStringObfuscated = make_obfuscated<0x5B>("48 8B 05 ?? ?? ?? ?? 48 ?? ?? 75 ?? 48 83 ?? ?? 5B C3");
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 ?? ?? ?? ?? ?? 8B 41");
// Prepare all data for scanning
std::vector<OffsetScanEntry> UEoffsetsScans = {
Make(&GObjectsaddress, GObjetcsStringObfuscated, "GObjects", OffsetCalcType::GetOffsetFromOpcode, &Offsets::GObjects, 0x3),
Make(&GWorldaddress, GWorldStringObfuscated, "GWorld", OffsetCalcType::GetOffsetFromOpcode, &Offsets::GWorld, 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;
}
ProcessEvent();
if (init) return;
FOVFixEnabled();
CameraFixEnabled();
HUDUpdate(false);
SetAllEffectsToBeToggled();
LogFixToggle(GameFixes::None, g_fix_enabled);
}
// Setters for Reshade addon call
extern "C" __declspec(dllexport) void SetFixesEnabled(GameFixes fix, bool enabled) { // Set each fix individually
bool bVisual = g_fix_enabled && enabled;
if (fix == GameFixes::DevConsole) { EnableConsole(); }
if (fix == GameFixes::FOV) { g_fov_fix_enabled = enabled; FOVFixEnabled(); }
if (fix == GameFixes::Camera) { g_Camera_fix_enabled = enabled; CameraFixEnabled(); }
if (fix == GameFixes::Cutscenes) { g_Letterboxing_fix_enabled = enabled; }
if (fix == GameFixes::ChromaticAberrations) { g_CA_fix_enabled = enabled; gPendingCA = true; LogFixToggle(fix, bVisual); }
if (fix == GameFixes::Vignetting) { g_Vignetting_fix_enabled = enabled; gPendingVignetting = true; LogFixToggle(fix, bVisual); }
if (fix == GameFixes::Fog) { g_Fog_fix_enabled = enabled; gPendingFog = true; LogFixToggle(fix, bVisual); }
if (fix == GameFixes::HUD) { g_HUD_fix_enabled = enabled; HUDUpdate(true); }
if (fix == GameFixes::TimeDilation) { g_TimeDilation_fix_enabled = enabled; EnableCheats(Cheat::TimeDilation); }
if (fix == GameFixes::GodMode) { g_GodMode_fix_enabled = enabled; EnableCheats(Cheat::GodMode); }
if (fix == GameFixes::Stealth) { g_Stealth_fix_enabled = enabled; EnableCheats(Cheat::Stealth); }
}
extern "C" __declspec(dllexport) void SetValues(GameSetting setting, float value) {
if (setting == GameSetting::FOV) g_AdditionalFOVValue = (int)(value);
if (setting == GameSetting::HUD) {
g_HUDOffsets = (value * screenWidth) / 100;
HUDUpdate(false);
}
if (setting == GameSetting::UI) {
g_UIOffsets = (value * screenWidth) / 100;
HUDUpdate(false);
}
if (setting == GameSetting::CameraDistance) g_CameraMultiplier = value;
if (setting == GameSetting::WorldTimeDilation) g_WorldTimeDilationValue = value;
if (setting == GameSetting::AITimeDilation) g_AITimeDilationValue = value;
}
// 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->cameraIn = g_CameraIn;
infos->cameraOut = g_CameraOut;
infos->Health = g_PlayerHealth;
infos->screenWidth = screenWidth;
infos->screenHeight = screenHeight;
infos->aspectRatio = (float)screenWidth / screenHeight;
infos->consoleEnabled = g_Console_Enabled;
}
// -- Code injection functions --
// Tracking sets
std::unordered_set<UUserWidget*> g_TrackedCenteredUIWidgets;
std::unordered_set<UUserWidget*> g_TrackedLeftSidedWidgets;
std::unordered_set<UUserWidget*> g_TrackedRightSidedWidgets;
// Left, right sided and centered widgets
std::unordered_set<std::string> g_LeftSidedWidgets = {
//"WBP_PlayerHUD_C"
"WBP_MiniMap_C",
"WBP_HUD_HealthStatus_C", // Health pills and more
"WBP_HUD_CurrentLocation_C", // Location bar (vies ...)
//"WBP_HUD_ProgressBar_C", // Health bar etc
//"WBP_HUD_Objective_C", // ??
//"WBP_HUD_VehicleWidget_C", // Compte tour etc...
//"WBP_TailOnFoot_C", // ??
//"WBP_HUD_Mission_C", // ??
//"WBP_HUD_HudIcons_C", // Crosshair
"WBP_HUD_MissionGameplay_C",
//"WBP_MissionGameplay_C", // ??
//"WBP_HUD_Skills_C",
"WBP_HUD_HintItem_C", // Hint voiture à garder
"WBP_LocateItem_C", // Location in the map
"WBP_TimeTrialTimeItem_C",
//"WBP_HUD_Timer_C"
//"WBP_HUD_MissionGameplay_C", // ?
//"WBP_OnboardingInstruction_C" // Instructions à virer
};
std::unordered_set<std::string> g_CenteredUIWidgets = { // WBP_CrimeScene_Map_C
"WBP_StartMenu_C",
"WBP_GameMenu_C"
};
std::unordered_set<std::string> g_RightSidedWidgets = {
"WBP_HUD_VehicleWidget_C", "WBP_HUD_HourToHour_C",
};
static UUserWidget* letterBoxWidget = nullptr;
static ULONGLONG lastScanTick = 0; // Last time tick was called
static void ProcessEvent() {
if (!PEHook && ProcessEventaddress) {
PEHook = safetyhook::create_mid(ProcessEventaddress + 0xc,
[](SafetyHookContext& ctx) {
ULONGLONG now = GetTickCount64();
if (now - lastScanTick >= DEFAULT_DELAY_BETWEEN_TICK) { // Delay between each tick to avoid ProcessEvent stuttering
lastScanTick = now;
GetResolution(screenWidth, screenHeight, g_AspectRatio);
HUDUpdate(false);
}
UObject* object = (UObject*)ctx.rcx;
UFunction* func = (UFunction*)ctx.rdx;
if (!object || !func) return;
const std::string funcName = func->GetName();
const std::string className = object->Class->GetName();
const std::string objectFullName = object->GetFullName();
//if (className == "WBP_HUD_ProgressBar_C" && funcName != "Tick") // Debug
// logger->debug("WBP_HUD_ProgressBar_C - {} - function: {}",object->GetFullName(), funcName);
if (object->IsA(UUserWidget::StaticClass())) {
auto* widget = static_cast<UUserWidget*>(object);
if (funcName == "Construct") {
TrackWidgetConstruct(widget);
if (g_LeftSidedWidgets.contains(className)) g_TrackedLeftSidedWidgets.insert(widget);
if (objectFullName.find("ExitProgressBar") != std::string::npos) {
g_TrackedLeftSidedWidgets.insert(widget);
logger->debug("ExitProgressBar tracked");
}
if (g_RightSidedWidgets.contains(className)) g_TrackedRightSidedWidgets.insert(widget);
if (g_CenteredUIWidgets.contains(className)) g_TrackedCenteredUIWidgets.insert(widget);
if (g_fix_enabled && g_HUD_fix_enabled)
HUDUpdate(false); // Called once
if (className == "WBP_Letterbox_Overlay_C") {
letterBoxWidget = widget;
if (UKismetSystemLibrary::IsValid(widget) && g_fix_enabled && g_Letterboxing_fix_enabled)
widget->SetVisibility(ESlateVisibility::Collapsed);
}
}
if (funcName == "Destruct") {
TrackWidgetDestruct(widget);
g_TrackedLeftSidedWidgets.erase(widget);
g_TrackedRightSidedWidgets.erase(widget);
g_TrackedCenteredUIWidgets.erase(widget);
if (className == "WBP_Letterbox_Overlay_C") letterBoxWidget = nullptr;
}
}
});
}
}
// -- HUD positionning --
static void HUDUpdate(bool writeLog) {
//return;
if (writeLog) logger->info("HUD fix {}", g_fix_enabled && g_HUD_fix_enabled ? "enabled" : "disabled");
float UIoffset = g_fix_enabled && g_HUD_fix_enabled ? g_UIOffsets : 0;
float HUDoffset = g_fix_enabled && g_HUD_fix_enabled ? g_HUDOffsets : 0;
// Copy sets to avoid race conditions
std::unordered_set<UUserWidget*> copyLeftWidgets = g_TrackedLeftSidedWidgets;
std::unordered_set<UUserWidget*> copyRightWidgets = g_TrackedRightSidedWidgets;
for (auto* widget : copyLeftWidgets) {
if (!UKismetSystemLibrary::IsValid(widget)) continue; // Ensure the widget is valid
ApplyTransformOffset(widget, HUDoffset);
}
for (auto* widget : copyRightWidgets) {
if (!UKismetSystemLibrary::IsValid(widget)) continue; // Ensure the widget is valid
ApplyTransformOffset(widget, -HUDoffset);
}
}
static void FOVFixEnabled() {
//if (g_fov_fix_enabled) // Here to track Widgets
// DumpUIAnalysis(logger);
//else ClearWidgetTracking();
if (!CameraComponentaddress) return;
if (!FOVHook) { // Hook only once
FOVHook = safetyhook::create_mid(CameraComponentaddress + 0xa,
[](SafetyHookContext& ctx) {
g_FOV_In = ctx.xmm0.f32[0];
ctx.xmm0.f32[0] += g_fix_enabled && g_fov_fix_enabled ? g_AdditionalFOVValue : 0.f;
g_FOV_Out = ctx.xmm0.f32[0];
});
}
logger->info("FOV fix {}", g_fix_enabled && g_fov_fix_enabled ? "enabled" : "disabled");
}
static void CameraFixEnabled() {
if (!Cameraaddress) return;
if (g_fix_enabled && g_Camera_fix_enabled) {
if (!CameraHook) {
CameraHook = safetyhook::create_mid(Cameraaddress,
[](SafetyHookContext& ctx) {
g_CameraIn = ctx.xmm1.f32[0];
ctx.xmm1.f32[0] *= g_fix_enabled && g_Camera_fix_enabled ? g_CameraMultiplier : 1.f;
g_CameraOut = ctx.xmm1.f32[0];
});
}
else CameraHook.enable();
}
else if (CameraHook) CameraHook.disable();
logger->info("Camera distance fix {}", g_fix_enabled && g_Camera_fix_enabled ? "enabled" : "disabled");
}
// -- Cheats --
static ULONGLONG lastScanWTDTick = 0; // Last time tick was called
static void EnableCheats(Cheat cheat) {
if (WorldTimedilationaddress && !WorldTimeDilationHook) {
WorldTimeDilationHook = safetyhook::create_mid(WorldTimedilationaddress + 0x19,
[](SafetyHookContext& ctx) { // From AWorldSettings retrieved from world->K2_GetWorldSettings()
ctx.xmm0.f32[0] *= g_TimeDilation_fix_enabled ? g_WorldTimeDilationValue : 1.f;
ULONGLONG now = GetTickCount64();
if (now - lastScanWTDTick >= DEFAULT_DELAY_BETWEEN_WTD_TICK) { // Delay between each tick to avoid ProcessEvent stuttering
lastScanWTDTick = now;
if (UKismetSystemLibrary::IsValid(letterBoxWidget))
letterBoxWidget->SetVisibility(g_fix_enabled && g_Letterboxing_fix_enabled ?
ESlateVisibility::Collapsed : ESlateVisibility::Visible);
}
// Apply visual effects only in hook main thread to ensure they will be applied correctly
if (!g_Console_Enabled) return; // It relies on dev console being reactivated
if (gPendingFog.exchange(false))
ApplyVisualEffect(GameFixes::Fog, g_fix_enabled && g_Fog_fix_enabled);
if (gPendingCA.exchange(false))
ApplyVisualEffect(GameFixes::ChromaticAberrations, g_fix_enabled && g_CA_fix_enabled);
if (gPendingVignetting.exchange(false))
ApplyVisualEffect(GameFixes::Vignetting, g_fix_enabled && g_Vignetting_fix_enabled);
});
}
// Enemies time dilation
if (Timedilationaddress && !TimeDilationHook) {
TimeDilationHook = safetyhook::create_mid(Timedilationaddress,
[](SafetyHookContext& ctx) {
if (!ctx.rbx) return;
UObject* object = (UObject*)ctx.rbx;
if (!object || !object->Class) return;
});
}
if (cheat == Cheat::TimeDilation) logger->info("Time dilation cheat {}", g_TimeDilation_fix_enabled ? "enabled" : "disabled");
if (cheat == Cheat::GodMode) logger->info("God mode cheat {}", g_GodMode_fix_enabled ? "enabled" : "disabled");
if (cheat == Cheat::Stealth) logger->info("Stealth cheat {}", g_Stealth_fix_enabled ? "enabled" : "disabled");
}
// UE Console creation
static void EnableConsole() {
if (g_Console_Enabled || !GObjectsaddress || !AppendStringaddress || !ProcessEventaddress)
return;
logger->info("-------------- Console re-enabling --------------");
ReactivateDevConsole(logger);
}
// Standard dll entry
BOOL APIENTRY DllMain(HMODULE hModule, DWORD reason, LPVOID) {
if (reason == DLL_PROCESS_DETACH) {
logger->info("Plugin {} unloaded.", PLUGIN_NAME);
spdlog::drop_all();
}
return TRUE;
}