Help! How to hook Transform in fields

ASDFGHJKLQWE · Jun 27, 2023

How to hook this?

Code:

//Fields 
 public Transform newoldShotgun; // 0x198

//Method 
 // RVA: 0x5EB5CC Offset: 0x5EB5CC VA: 0x5EB5CC
 private void Update() { }

·҉ dollaz·҉. . · Jun 27, 2023

put that in your update hook and then you can use it for whatever you need

void newoldShotgun = *(void *)((uint64_t)instance + 0x198);

ASDFGHJKLQWE · Jun 28, 2023

@·҉ dollaz·҉. . Like this:-

Code:

bool newgun;
void (*old_Update)(void *instance);
void update(void *instance){
    if(instance != NULL){
       if (newgun) {
void newoldShotgun = *(void *)((uint64_t)instance + 0x198);
}
}
return old_Update(instance);
}

·҉ dollaz·҉. . · Jun 28, 2023

ASDFGHJKLQWE said:

@·҉ dollaz·҉. . Like this:-

Code:

bool newgun;
void (*old_Update)(void *instance);
void update(void *instance){
    if(instance != NULL){
       if (newgun) {
void newoldShotgun = *(void *)((uint64_t)instance + 0x198);
}
}
return old_Update(instance);
}

Yeah that’s how you get the transform. Now you gotta use it for something. Idk what that’s supposed to be for but you can like change position or scale or stuff like that

priyanshu88064 · Sep 12, 2023

What if Transform is a return type of a function we want to hook.

C#:

public Transform myTransform
{
get{}
private set{}
}

·҉ dollaz·҉. . · Sep 12, 2023

priyanshu88064 said:
What if Transform is a return type of a function we want to hook.

C#:

public Transform myTransform { get{} private set{} }

Function pointer

priyanshu88064 · Sep 12, 2023

·҉ dollaz·҉. . said:
Function pointer

I am a beginner, can you please show an example?
Basically I want to modify the position property of Transform component.

Mtankan'Omogolo · Dec 13, 2024

What if you want to hook the Transform for both the FL and FR wheels, that I know thier position is stored at Vector3 oldWheelFLPos; // 0x98 and Vector3 oldWheelFRPos; // 0xA4 respectively? Both of them are directly referenced from the transform.
Help!

// Namespace:
public class CutsceneVehicleRig : MonoBehaviour // TypeDefIndex: 13
{
// Fields
public Transform wheelFL; // 0x18
public Transform wheelRL; // 0x20
public Transform wheelFR; // 0x28
public Transform wheelRR; // 0x30
public Transform carBody; // 0x38
[Range(0,002, 0,03)]
public float weight; // 0x40
public float groundHeight; // 0x44
public bool AnimateWheelRotation; // 0x48
public CutsceneVehicleRig.pivotPlacement PivotPos; // 0x4C
private Quaternion oldDirection; // 0x50
private Vector3 oldPosition; // 0x60
private float wheelSpin; // 0x6C
private float rotates; // 0x70
private float speed; // 0x84
private bool stopped; // 0x88
private Vector3 oldBodyPos; // 0x8C
private Vector3 oldWheelFLPos; // 0x98
private Vector3 oldWheelFRPos; // 0xA4
private Vector3 oldWheelRLPos; // 0xB0
private Vector3 oldWheelRRPos; // 0xBC

// Methods

// RVA: 0x14900D0 Offset: 0x14900D0 VA: 0x14900D0
private void Start() { }

// RVA: 0x14901FC Offset: 0x14901FC VA: 0x14901FC
public void InitWheelsAndBody() { }

// RVA: 0x1490198 Offset: 0x1490198 VA: 0x1490198
private void ResetAll() { }

// RVA: 0x1490498 Offset: 0x1490498 VA: 0x1490498
private void ResetWheels() { }

// RVA: 0x14905A4 Offset: 0x14905A4 VA: 0x14905A4
private void RotateToPivot(Transform g, Vector3 oldPos) { }

// RVA: 0x1490744 Offset: 0x1490744 VA: 0x1490744
private void Update() { }

// RVA: 0x14911A4 Offset: 0x14911A4 VA: 0x14911A4
public void .ctor() { }
}

·҉ dollaz·҉. . · Dec 17, 2024

Mtankan'Omogolo said:
What if you want to hook the Transform for both the FL and FR wheels, that I know thier position is stored at Vector3 oldWheelFLPos; // 0x98 and Vector3 oldWheelFRPos; // 0xA4 respectively? Both of them are directly referenced from the transform.
Help!

// Namespace:
public class CutsceneVehicleRig : MonoBehaviour // TypeDefIndex: 13
{
// Fields
public Transform wheelFL; // 0x18
public Transform wheelRL; // 0x20
public Transform wheelFR; // 0x28
public Transform wheelRR; // 0x30
public Transform carBody; // 0x38
[Range(0,002, 0,03)]
public float weight; // 0x40
public float groundHeight; // 0x44
public bool AnimateWheelRotation; // 0x48
public CutsceneVehicleRig.pivotPlacement PivotPos; // 0x4C
private Quaternion oldDirection; // 0x50
private Vector3 oldPosition; // 0x60
private float wheelSpin; // 0x6C
private float rotates; // 0x70
private float speed; // 0x84
private bool stopped; // 0x88
private Vector3 oldBodyPos; // 0x8C
private Vector3 oldWheelFLPos; // 0x98
private Vector3 oldWheelFRPos; // 0xA4
private Vector3 oldWheelRLPos; // 0xB0
private Vector3 oldWheelRRPos; // 0xBC

// Methods

// RVA: 0x14900D0 Offset: 0x14900D0 VA: 0x14900D0
private void Start() { }

// RVA: 0x14901FC Offset: 0x14901FC VA: 0x14901FC
public void InitWheelsAndBody() { }

// RVA: 0x1490198 Offset: 0x1490198 VA: 0x1490198
private void ResetAll() { }

// RVA: 0x1490498 Offset: 0x1490498 VA: 0x1490498
private void ResetWheels() { }

// RVA: 0x14905A4 Offset: 0x14905A4 VA: 0x14905A4
private void RotateToPivot(Transform g, Vector3 oldPos) { }

// RVA: 0x1490744 Offset: 0x1490744 VA: 0x1490744
private void Update() { }

// RVA: 0x14911A4 Offset: 0x14911A4 VA: 0x14911A4
public void .ctor() { }
}

It’s the same thing depending on what you’re trying to use it for.

void flWheelTransform = *(void *)((uint64_t)instance + 0x18);

And use 0x1490744 (the update you have)

jaimecd · Dec 18, 2024

·҉ dollaz·҉. . said:
It’s the same thing depending on what you’re trying to use it for.

void flWheelTransform = *(void *)((uint64_t)instance + 0x18);

And use 0x1490744 (the update you have)

#include <iostream> // for debugging
#include <Windows.h>
#include "MinHook.h" // Assuming you're using MinHook

// Function pointer to the original Update method
typedef void(__thiscall* UpdateFunc)(void* instance);
UpdateFunc OriginalUpdate;

// Typedef for Vector3, if you don't have a Vector3 struct/class elsewhere
struct Vector3
{
float x, y, z;
};

// Custom structure for the CutsceneVehicleRig class
struct CutsceneVehicleRig
{
// ... Other members ...
Transform* wheelFL; //0x18
Transform* wheelRL; // 0x20
Transform* wheelFR; // 0x28
Transform* wheelRR; // 0x30
Transform* carBody; // 0x38
float weight; // 0x40
float groundHeight; // 0x44
bool AnimateWheelRotation; // 0x48
int PivotPos; // 0x4C
Quaternion oldDirection; // 0x50
Vector3 oldPosition; // 0x60
float wheelSpin; // 0x6C
float rotates; // 0x70
float speed; // 0x84
bool stopped; // 0x88
Vector3 oldBodyPos; // 0x8C
Vector3 oldWheelFLPos; // 0x98
Vector3 oldWheelFRPos; // 0xA4
Vector3 oldWheelRLPos; // 0xB0
Vector3 oldWheelRRPos; // 0xBC
};

// Our custom Transform class
class Transform {
public:
float x, y, z; // Position
float rx, ry, rz, rw; // rotation

Vector3 GetPosition() { return {x,y,z}; }
Quaternion GetRotation() { return {rx,ry,rz,rw}; }

void SetPosition(float x1, float y1, float z1) {x=x1; y=y1; z=z1;}
};

// Hook function
void __fastcall MyUpdateHook(CutsceneVehicleRig* instance)
{
if (instance) {
Transform* flTransform = instance->wheelFL;
Transform* frTransform = instance->wheelFR;

// Read the old positions
Vector3 oldFlPos = instance->oldWheelFLPos;
Vector3 oldFrPos = instance->oldWheelFRPos;

// Do what you wish here
if (flTransform) {
float x = flTransform->GetPosition().x;
float y = flTransform->GetPosition().y;
float z = flTransform->GetPosition().z;
flTransform->SetPosition(x + 1.0f, y, z);
std::cout << "Old FL Position: x: " << oldFlPos.x << ", y: " << oldFlPos.y << ", z: " << oldFlPos.z << std::endl;
std::cout << "New FL Position: x: " << x + 1.0f << ", y: " << y << ", z: " << z << std::endl;

}
if (frTransform) {
float x = frTransform->GetPosition().x;
float y = frTransform->GetPosition().y;
float z = frTransform->GetPosition().z;
frTransform->SetPosition(x, y, z + 1.0f);

std::cout << "Old FR Position: x: " << oldFrPos.x << ", y: " << oldFrPos.y << ", z: " << oldFrPos.z << std::endl;
std::cout << "New FR Position: x: " << x << ", y: " << y << ", z: " << z + 1.0f << std::endl;

}

}

// Call the original method to make sure the game logic continues
OriginalUpdate(instance);
}

bool HookFunction(uintptr_t target, void* detour, void** original) {
if (MH_CreateHook((LPVOID)target, detour, original) != MH_OK) {
return false;
}
return MH_EnableHook((LPVOID)target) == MH_OK;
}
bool UnhookFunction(uintptr_t target) {
return MH_DisableHook((LPVOID)target) == MH_OK;
}

// In your DLL main or similar initialization code:
bool InitializeHook()
{
if (MH_Initialize() != MH_OK)
{
// Failed to initialize minhook.
return false;
}

// Replace with the actual address of the Update method. From your
// question you have the RVA which is relative to the base image of the module
// you're looking at. So convert this to a virtual address.
uintptr_t updateFunctionAddress = (uintptr_t)GetModuleHandle(NULL) + 0x1490744; // Get the base address of the program and add the RVA of the function.

if (!HookFunction(updateFunctionAddress, &MyUpdateHook, (void**)&OriginalUpdate)) {
std::cerr << "Failed to create hook.\n";
MH_Uninitialize();
return false;
}

// Successfully hooked.
return true;
}
void UninitializeHook() {
// Unhook
uintptr_t updateFunctionAddress = (uintptr_t)GetModuleHandle(NULL) + 0x1490744;

if (UnhookFunction(updateFunctionAddress) == MH_OK) {
std::cout << "Unhooked successfully.\n";
}
else {
std::cerr << "Failed to unhook.\n";
}

MH_Uninitialize();
}

Mtankan'Omogolo · Jan 14, 2025

Thanks, will go and try it now.

Help! How to hook Transform in fields

ASDFGHJKLQWE

Solid & Active Platinian

·҉ dollaz·҉. .

Approved iModder

ASDFGHJKLQWE

Solid & Active Platinian

·҉ dollaz·҉. .

Approved iModder

priyanshu88064

Platinian

·҉ dollaz·҉. .

Approved iModder

priyanshu88064

Platinian

Mtankan'Omogolo

Platinian

·҉ dollaz·҉. .

Approved iModder

jaimecd

Platinian

Mtankan'Omogolo

Platinian

Help! How to hook Transform in fields

Solid & Active Platinian

Approved iModder

Solid & Active Platinian

Approved iModder

Platinian

Approved iModder

Platinian

Platinian

Approved iModder

Platinian

Platinian

Cookies

Cookies