From 5896b9e5514482952dc87143cbb61b6d54b18e7e Mon Sep 17 00:00:00 2001
From: Emmanuel AYME <eayme44@gmail.com>
Date: Mon, 15 Sep 2025 11:48:37 +0200
Subject: [PATCH] Add camera distance

---
 HellIsUs/dllmain.cpp | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/HellIsUs/dllmain.cpp b/HellIsUs/dllmain.cpp
index 5f536c1..46956cc 100644
--- a/HellIsUs/dllmain.cpp
+++ b/HellIsUs/dllmain.cpp
@@ -36,7 +36,9 @@ static bool g_DOF_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 bool g_Camera_distance_fix_enabled = false;
 static int g_AdditionalFOVValue = 0;
+static float g_cameraDistanceMultiplier = 1.f;
 
 // Shared values
 static float g_FOV_In = 0;
@@ -58,11 +60,13 @@ static uint8_t* DOFaddress = nullptr;
 static uint8_t* CAaddress = nullptr;
 static uint8_t* Vignettingaddress = nullptr;
 static uint8_t* Fogaddress = nullptr;
+static uint8_t* CameraDistanceaddress = nullptr;
 
 // Hooking
 static SafetyHookMid FOVHook{};
 static SafetyHookMid AspectHook{};
 static SafetyHookMid FogHook{};
+static SafetyHookMid CameraDistanceHook{};
 
 // Prototypes 
 static void FOVFixEnabled(bool fix_enabled);
@@ -71,6 +75,7 @@ static void DOFFixEnabled(bool fix_enabled);
 static void CAFixEnabled(bool fix_enabled);
 static void VignettingFixEnabled(bool fix_enabled);
 static void FogFixEnabled(bool fix_enabled);
+static void CameraDistanceFixEnabled(bool fix_enabled);
 static void EnableConsole();
 
 extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled)
@@ -181,6 +186,22 @@ extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled)
             }            
         }
 
+        if (CameraDistanceaddress == nullptr) {
+            constexpr auto FogStringObfuscated = make_obfuscated<0x4A>("28 C3 48 83 ?? ?? 48 8B ?? ?? ?? ?? ?? 48 8B ?? 48 85 ?? 75");
+            CameraDistanceaddress = Memory::AOBScan(gameExecutable, FogStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
+            //"HellIsUs-Win64-Shipping.exe" + 4E9D3F2 - 48 85 C0       - test rax, rax
+            //"HellIsUs-Win64-Shipping.exe" + 4E9D3F5 - 74 0A          - je "HellIsUs-Win64-Shipping.exe" + 4E9D401
+            //"HellIsUs-Win64-Shipping.exe" + 4E9D3F7 - F3 0F 10 40 4C - movss xmm0, [rax + 4C]
+            //"HellIsUs-Win64-Shipping.exe" + 4E9D3FC - 48 83 C4 28    - add rsp, 28
+            //"HellIsUs-Win64-Shipping.exe" + 4E9D400 - C3             - ret
+
+            if (!CameraDistanceaddress)
+                logger->warn("Camera distance signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
+            else {
+                logger->info("Camera distance signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(CameraDistanceaddress));
+            }
+        }
+
         if (FOVaddress && FOVOtheraddress && Aspectaddress && DOFaddress && CAaddress && Vignettingaddress && Fogaddress) {
             logger->info("All AOB signatures found. Ready to patch...");
             AOBScanDone = true;
@@ -293,11 +314,22 @@ extern "C" __declspec(dllexport) void SetFogFixEnabled(bool enabled, bool init)
     if (!init) FogFixEnabled(g_Fog_fix_enabled);
 }
 
+extern "C" __declspec(dllexport) void SetCameraDistanceFixEnabled(bool enabled, bool init)
+{
+    g_Camera_distance_fix_enabled = enabled;
+    if (!init) CameraDistanceFixEnabled(g_Camera_distance_fix_enabled);
+}
+
 extern "C" __declspec(dllexport) void SetFOV(int fov)
 {
     g_AdditionalFOVValue = fov;
 }
 
+extern "C" __declspec(dllexport) void SetCameraDistance(float cameraDistance)
+{
+    g_cameraDistanceMultiplier = cameraDistance;
+}
+
 extern "C" __declspec(dllexport) void SetConsole()
 {
     EnableConsole();
@@ -408,6 +440,18 @@ static void FogFixEnabled(bool fix_enabled) {
     }
 }
 
+static void CameraDistanceFixEnabled(bool fix_enabled) {
+    if (g_fix_enabled && fix_enabled && CameraDistanceaddress) {
+        if (!CameraDistanceHook) { // Hook only once +0x4e or start to test +0x13
+            CameraDistanceHook = safetyhook::create_mid(CameraDistanceaddress + 0x4e,
+                [](SafetyHookContext& ctx) {
+                    ctx.xmm0.f32[0] *= g_cameraDistanceMultiplier;
+                });
+        }
+        logger->info("CameraDistance fix enabled");
+    }
+}
+
 // UE Console creation
 static void EnableConsole()
 {