384 lines
17 KiB
C++
384 lines
17 KiB
C++
#include <string>
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#include <spdlog/spdlog.h>
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#include <spdlog/sinks/rotating_file_sink.h>
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#include <filesystem>
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#include <safetyhook.hpp>
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#include "GameInformations.h"
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#include "ObfuscateString.h"
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#include "Memory.hpp";
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#include "Maths.hpp";
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#include "UEngine.hpp";
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#include "SDK/Basic.hpp"
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#include "SDK/Engine_classes.hpp"
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using namespace SDK;
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// Constants
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const std::string PLUGIN_NAME = "LittleNightmareIII";
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const std::string PLUGIN_LOG = PLUGIN_NAME + ".log";
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const std::string gameExecutable = "LittleNightmaresIII.exe";
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// Logger
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std::shared_ptr<spdlog::logger> logger;
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// Plugin states
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static bool AOBScanDone = false;
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static bool g_fix_enabled = false;
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static bool g_fov_fix_enabled = false;
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static bool g_ultrawide_fix_enabled = false;
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static bool g_DOF_fix_enabled = false;
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static bool g_CA_fix_enabled = false;
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static bool g_Vignetting_fix_enabled = false;
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static int g_AdditionalFOVValue = 0;
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// Shared values
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static float g_FOV_In = 60.f;
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static float g_FOV_Out = 60.f;
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static bool g_Console_Enabled = false;
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// AOB Unreal Engine offsets addresses
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static uint8_t* GObjectsaddress = nullptr;
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static uint8_t* GNamesaddress = nullptr;
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static uint8_t* AppendStringaddress = nullptr;
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static uint8_t* ProcessEventaddress = nullptr;
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// AOB Scan pointers
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static uint8_t* FOVaddress = nullptr;
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static uint8_t* DOFaddress = nullptr;
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static uint8_t* CAaddress = nullptr;
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static uint8_t* Vignettingaddress = nullptr;
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static uint8_t* CameraComponentaddress = nullptr;
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static uint8_t* ConstrainAspectRatioaddress = nullptr;
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static uint8_t* AspectRatioAxisConstraintaddress = nullptr;
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// Hooking
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static SafetyHookMid FOVHook{};
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// Prototypes
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static void FOVFixEnabled();
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static void UltraWideFixEnabled();
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static void DOFFixEnabled();
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static void CAFixEnabled();
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static void VignettingFixEnabled();
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static void EnableConsole();
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extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled)
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{
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g_fix_enabled = enabled;
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if (g_fix_enabled && !AOBScanDone) {
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logger->info("--------------- AOB scan started ---------------");
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if (CameraComponentaddress == nullptr) {
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constexpr auto FOVStringObfuscated = make_obfuscated<0x4A>("EB ?? F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? 8B 87");
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CameraComponentaddress = Memory::AOBScan(gameExecutable, FOVStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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if (!CameraComponentaddress)
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logger->warn("Camera component signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else {
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logger->info("Camera component found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(CameraComponentaddress));
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FOVaddress = CameraComponentaddress +0xa;
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ConstrainAspectRatioaddress = CameraComponentaddress +0x18;
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}
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}
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if (!AspectRatioAxisConstraintaddress) {
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constexpr auto AspectRatioAxisConstraintStringObfuscated = make_obfuscated<0x4A>("41 0F ?? ?? ?? ?? ?? ?? 48 8D ?? ?? ?? ?? ?? 4C ?? ?? 4D ?? ?? E8");
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AspectRatioAxisConstraintaddress = Memory::AOBScan(gameExecutable, AspectRatioAxisConstraintStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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if (!AspectRatioAxisConstraintaddress)
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logger->warn("HOR+ signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else
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logger->info("HOR+ found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(AspectRatioAxisConstraintaddress));
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}
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if (!DOFaddress) {
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constexpr auto DOFStringObfuscated = make_obfuscated<0x4A>("44 8B ?? ?? 48 8D ?? ?? ?? ?? ?? 8B ?? ?? E8 ?? ?? ?? ?? 84");
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DOFaddress = Memory::AOBScan(gameExecutable, DOFStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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//LittleNightmaresIII.exe + 2461608 - 48 8B 05 A9 6D 11 04 - mov rax, [LittleNightmaresIII.exe + 65783B8]
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//LittleNightmaresIII.exe + 246160F - 48 63 8F 28 16 00 00 - movsxd rcx, dword ptr[rdi + 00001628]
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//LittleNightmaresIII.exe + 2461616 - 44 8B 48 04 - mov r9d, [rax + 04]
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//LittleNightmaresIII.exe + 246161A - 48 8D 05 47 93 D4 03 - lea rax, [LittleNightmaresIII.exe + 61AA968]
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//LittleNightmaresIII.exe + 2461621 - 8B 0C 88 - mov ecx, [rax + rcx * 4]
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if (!DOFaddress)
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logger->warn("DOF signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else
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logger->info("DOF signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(DOFaddress));
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}
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if (!CAaddress) {
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constexpr auto CAStringObfuscated = make_obfuscated<0x4A>("7F ?? 89 BB ?? ?? ?? ?? 8B ?? ?? 39 05 ?? ?? ?? ?? 7E");
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CAaddress = Memory::AOBScan(gameExecutable, CAStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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if (!CAaddress)
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logger->warn("Chromatic aberrations signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else
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logger->info("Chromatic aberrations signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(CAaddress));
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}
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if (!Vignettingaddress) {
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constexpr auto CAStringObfuscated = make_obfuscated<0x4A>("8B ?? 83 ?? ?? 7D ?? 89 BB ?? ?? ?? ?? 89 BB");
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Vignettingaddress = Memory::AOBScan(gameExecutable, CAStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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//LittleNightmaresIII.exe + 39E9201 - 89 BB 8C 10 00 00 - mov[rbx + 0000108C], edi
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//LittleNightmaresIII.exe + 39E9207 - 48 8B 05 2A 6C A4 02 - mov rax, [LittleNightmaresIII.exe + 642FE38]
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//LittleNightmaresIII.exe + 39E920E - 8B 08 - mov ecx, [rax]
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//LittleNightmaresIII.exe + 39E9210 - 83 F9 01 - cmp ecx, 01
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//LittleNightmaresIII.exe + 39E9213 - 7D 1A - jnl LittleNightmaresIII.exe + 39E922F
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if (!Vignettingaddress)
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logger->warn("Vignetting signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else
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logger->info("Vignetting signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(Vignettingaddress));
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}
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if (CameraComponentaddress && FOVaddress && DOFaddress && CAaddress && Vignettingaddress
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&& ConstrainAspectRatioaddress && AspectRatioAxisConstraintaddress) {
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logger->info("All AOB signatures found. Ready to patch...");
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AOBScanDone = true;
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}
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if (!GObjectsaddress || !GNamesaddress || !AppendStringaddress || !ProcessEventaddress) {
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logger->info("------------ UEngine offsets search ------------");
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uint8_t* baseModule = reinterpret_cast<uint8_t*>(GetModuleHandleA(nullptr)); // Get game base address
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constexpr auto GObjetcsStringObfuscated = make_obfuscated<0x4A>("48 8B ?? ?? ?? ?? ?? 48 8B ?? ?? 48 8D ?? ?? EB ?? 33");
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GObjectsaddress = Memory::AOBScan(gameExecutable, GObjetcsStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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constexpr auto GNamesStringObfuscated = make_obfuscated<0x4A>("48 8D ?? ?? ?? ?? ?? EB ?? 48 8D ?? ?? ?? ?? ?? E8 ?? ?? ?? ?? C6 05 ?? ?? ?? ?? ?? 0F ?? ?? 4C");
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GNamesaddress = Memory::AOBScan(gameExecutable, GNamesStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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constexpr auto ProcessEventStringObfuscated = make_obfuscated<0x4A>("40 ?? 56 57 41 ?? 41 ?? 41 ?? 41 ?? 48 81 ?? ?? ?? ?? ?? 48 8D ?? ?? ?? 48 89 ?? ?? ?? ?? ?? 48 8B ?? ?? ?? ?? ?? 48 33 ?? 48 89 ?? ?? ?? ?? ?? 8B 41");
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ProcessEventaddress = Memory::AOBScan(gameExecutable, ProcessEventStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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if (!GObjectsaddress)
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logger->warn("GObjects signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else {
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uint32_t gObjectsOffset = static_cast<uint32_t>(Memory::GetOffsetFromOpcode(GObjectsaddress + 0x3) - baseModule);
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logger->info("GObjects offset is: 0x{:X}.", gObjectsOffset);
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Offsets::GObjects = static_cast<UC::uint32>(gObjectsOffset); // Update GObjects offset
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}
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if (!GNamesaddress)
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logger->warn("GNames signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else {
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uint32_t gNamesOffset = static_cast<uint32_t>(Memory::GetOffsetFromOpcode(GNamesaddress + 0x3) - baseModule);
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logger->info("GNames offset is: 0x{:X}.", gNamesOffset);
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Offsets::GNames = static_cast<UC::uint32>(gNamesOffset); // Update GNames offset
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}
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if (!ProcessEventaddress)
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logger->warn("Process Event signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else {
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std::optional<uint32_t> gProcessEventOffsetOpt = UE::CalculateOffset(gameExecutable, ProcessEventaddress);
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uint32_t gProcessEventOffset = *gProcessEventOffsetOpt;
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logger->info("Process Event offset is: 0x{:X}.", gProcessEventOffset);
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Offsets::ProcessEvent = static_cast<UC::uint32>(gProcessEventOffset);// Update ProcessEvent offset
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}
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}
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logger->info("-------------- Fixes initialisation -------------");
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}
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if (FOVaddress) FOVFixEnabled();
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if (DOFaddress) DOFFixEnabled();
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if (CAaddress) CAFixEnabled();
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if (Vignettingaddress) VignettingFixEnabled();
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if (AspectRatioAxisConstraintaddress && ConstrainAspectRatioaddress) UltraWideFixEnabled();
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if (!g_Console_Enabled && GObjectsaddress && GNamesaddress && ProcessEventaddress)
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EnableConsole();
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}
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// Setters for Reshade addon call
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extern "C" __declspec(dllexport) void SetFOVFixEnabled(bool enabled, bool init)
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{
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g_fov_fix_enabled = enabled;
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if (!init) FOVFixEnabled();
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}
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extern "C" __declspec(dllexport) void SetUltraWideFixEnabled(bool enabled, bool init)
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{
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g_ultrawide_fix_enabled = enabled;
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if (!init) UltraWideFixEnabled();
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}
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extern "C" __declspec(dllexport) void SetDOFFixEnabled(bool enabled, bool init)
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{
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g_DOF_fix_enabled = enabled;
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if (!init) DOFFixEnabled();
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}
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extern "C" __declspec(dllexport) void SetCAFixEnabled(bool enabled, bool init)
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{
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g_CA_fix_enabled = enabled;
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if (!init) CAFixEnabled();
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}
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extern "C" __declspec(dllexport) void SetVignettingFixEnabled(bool enabled, bool init)
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{
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g_Vignetting_fix_enabled = enabled;
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if (!init) VignettingFixEnabled();
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}
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extern "C" __declspec(dllexport) void SetFOV(int fov)
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{
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g_AdditionalFOVValue = fov;
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}
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// Getters for Reshade addon call
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extern "C" __declspec(dllexport) void GetGameInfos(GameInfos* infos) {
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if (!infos) return;
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infos->FOVIn = g_FOV_In;
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infos->FOVOut = g_FOV_Out;
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infos->consoleEnabled = g_Console_Enabled;
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}
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// Code injection functions
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static void FOVFixEnabled() {
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if (g_fix_enabled && g_fov_fix_enabled && FOVaddress) {
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if (!FOVHook) { // Hook only once
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FOVHook = safetyhook::create_mid(FOVaddress,
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[](SafetyHookContext& ctx) {
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g_FOV_In = ctx.xmm0.f32[0];
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ctx.xmm0.f32[0] += (g_fix_enabled && g_fov_fix_enabled ? g_AdditionalFOVValue : g_FOV_In);
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g_FOV_Out = ctx.xmm0.f32[0];
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});
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}
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else FOVHook.enable();
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logger->info("FOV fix enabled");
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}
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if (!(g_fix_enabled && g_fov_fix_enabled) && FOVaddress) {
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if (FOVHook) FOVHook.disable();
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logger->info("FOV fix disabled");
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}
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}
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// Memory patch fixes
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static void UltraWideFixEnabled() {
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if (g_fix_enabled && g_ultrawide_fix_enabled && AspectRatioAxisConstraintaddress && ConstrainAspectRatioaddress) {
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Memory::PatchBytes(AspectRatioAxisConstraintaddress, "\x31\xD2\x90\x90\x90\x90\x90\x90", 8); // AspectRatio_MaintainYFOV = 0
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Memory::PatchBytes(ConstrainAspectRatioaddress, "\x31\xC9\x90\x90\x90\x90\x90", 7); // bConstrainAspectRatio = 0
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logger->info("Ultra wide fix enabled");
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}
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if (!(g_fix_enabled && g_ultrawide_fix_enabled) && AspectRatioAxisConstraintaddress && ConstrainAspectRatioaddress) {
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Memory::RestoreBytes(AspectRatioAxisConstraintaddress);
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Memory::RestoreBytes(ConstrainAspectRatioaddress);
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logger->info("Ultra wide fix disabled");
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}
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}
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static void DOFFixEnabled() {
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if (g_fix_enabled && g_DOF_fix_enabled && DOFaddress) {
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Memory::PatchBytes(DOFaddress, "\x45\x31\xC9\x90", 4); // xor r9d,r9d r.DepthOfFieldQuality = 0
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logger->info("Depth of field fix enabled");
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}
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if (!(g_fix_enabled && g_DOF_fix_enabled) && DOFaddress) {
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Memory::RestoreBytes(DOFaddress);
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logger->info("Depth of field fix disabled");
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}
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}
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static void CAFixEnabled() {
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if (g_fix_enabled && g_CA_fix_enabled && CAaddress) {
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Memory::PatchBytes(CAaddress, "\x90\x90", 2); // NOP x 2 r.SceneColorFringeQuality = 0
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logger->info("Chromatics aberrations fix enabled");
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}
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if (!(g_fix_enabled && g_CA_fix_enabled) && CAaddress) {
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Memory::RestoreBytes(CAaddress);
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logger->info("Chromatics aberrations fix disabled");
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}
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}
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static void VignettingFixEnabled() {
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if (g_fix_enabled && g_Vignetting_fix_enabled && Vignettingaddress) {
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Memory::PatchBytes(Vignettingaddress, "\x31\xC9", 2); // xor ecx,ecx r.Tonemapper.Quality=0
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logger->info("Vignetting fix enabled");
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}
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if (!(g_fix_enabled && g_Vignetting_fix_enabled) && Vignettingaddress) {
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Memory::RestoreBytes(Vignettingaddress);
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logger->info("Vignetting fix disabled");
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}
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}
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// UE Console creation
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static void EnableConsole()
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{
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logger->info("-------------- Console re-enabling --------------");
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if (!GObjectsaddress || !GNamesaddress || !ProcessEventaddress) {
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logger->warn("Could not re-enable console");
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logger->info("------------------ User inputs ------------------");
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return;
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}
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std::thread([&]() {
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auto start = std::chrono::high_resolution_clock::now(); // Measure the time to renable console
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UEngine* Engine = nullptr;
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for (int i = 0; i < 100; ++i) { // gives 10 seconds to find UE Engine
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std::this_thread::sleep_for(std::chrono::milliseconds(100));
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Engine = UEngine::GetEngine();
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if (Engine && Engine->ConsoleClass && Engine->GameViewport)
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break;
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}
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if (!Engine || !Engine->ConsoleClass || !Engine->GameViewport) {
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logger->error("Console could not be found in engine.");
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return;
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}
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logger->info("Console found in engine");
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/* Creates a new UObject of class-type specified by Engine->ConsoleClass */
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UObject* NewObject = UGameplayStatics::SpawnObject(Engine->ConsoleClass, Engine->GameViewport);
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if (NewObject)
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{
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logger->info("Successfully spawned console object");
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// Set the console viewport so that it will be displayed
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Engine->GameViewport->ViewportConsole = static_cast<UConsole*>(NewObject);
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auto end = std::chrono::high_resolution_clock::now();
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std::chrono::duration<double> elapsed = end - start;
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for (int i = 0; i < UInputSettings::GetDefaultObj()->ConsoleKeys.Num(); i++)
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{
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UInputSettings::GetDefaultObj()->ConsoleKeys[i].KeyName = UKismetStringLibrary::Conv_StringToName(L"F2");
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}
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logger->info("Console fully reactivated in {:.3f}s and bound to key F2", elapsed.count());
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logger->info("------------------ User inputs ------------------");
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g_Console_Enabled = true;
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}
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else {
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logger->error("Could not spawn console object");
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}
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}).detach();
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}
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static void InitializeLogger()
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{
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try
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{
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std::filesystem::path log_path = std::filesystem::absolute(PLUGIN_LOG);
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if (std::filesystem::exists(log_path))
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std::filesystem::remove(log_path);
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logger = std::make_shared<spdlog::logger>("Little Nightmare III", std::make_shared<spdlog::sinks::rotating_file_sink_st>(PLUGIN_LOG, 10 * 1024 * 1024, 1));
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logger->set_level(spdlog::level::debug);
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logger->flush_on(spdlog::level::debug); // Flush automatically
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}
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catch (const spdlog::spdlog_ex& ex)
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{
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std::string plugin_error_message = "Could not open " + PLUGIN_LOG;
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MessageBoxA(nullptr, plugin_error_message.c_str(), "Logger Error", MB_ICONERROR | MB_OK);
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}
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}
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// Standard dll entry
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BOOL APIENTRY DllMain(HMODULE hModule, DWORD reason, LPVOID)
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{
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if (reason == DLL_PROCESS_ATTACH)
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{
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InitializeLogger();
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logger->info("Plugin {} loaded.", PLUGIN_NAME);
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}
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else if (reason == DLL_PROCESS_DETACH)
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{
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logger->info("Plugin {} unloaded.", PLUGIN_NAME);
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spdlog::drop_all();
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}
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return TRUE;
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} |