BrokeBroky
Platinian
public bool AddItem(string item_id, int item_value) { } // 0x61B174
Solved How to hook bool method
- Thread starter BrokeBroky
- Start date
libModz
Platinian On Fire
C++:
bool (*old_AddItem)(void *instance, monoString *item_id, int item_value);
bool AddItem((*old_AddItem)(void *instance, monoString *item_id, int item_value) {
if(instance!=nullptr) {
return true;
}
return old_AddItem(instance, item_id, item_value);
}BrokeBroky
Platinian
How to fix?
Attachments
libModz
Platinian On Fire
You need a monoString struct. Add a new file in your Includes folder called mono.h then paste this code inside...
C++:
typedef struct _monoString
{
void *klass;
void *monitor;
int length;
char chars[1];
int getLength()
{
return length;
}
char *getChars()
{
return chars;
}
} monoString;
monoString *CreateString(const char *str)
{
monoString *(*CreateString)(void *instance, const char *str, int start, int length) = (monoString * (*)(void *, const char *, int, int)) getAbsoluteAddress(0xOFFSET); //offset here
int length = (int)strlen(str);
return CreateString(NULL, str, 0, length);
}Replace where it says 0xOFFSET with the correct offset from your dump...
private string CreateString(sbyte* value, int startIndex, int length) {}
Then add this line to main.cpp at top...
C++:
#include "Includes/Mono.h"BrokeBroky
Platinian
Where to download Mono.h, in LGL Mod Menu 3.2 there is no Mono.h
Attachments
libModz
Platinian On Fire
Also I made typo in the hook, here fixed...
C++:
bool (*old_AddItem)(void *instance, monoString *item_id, int item_value);
bool AddItem(void *instance, monoString *item_id, int item_value) {
if(instance!=nullptr) {
return true;
}
return old_AddItem(instance, item_id, item_value);
}libModz
Platinian On Fire
Go to Includes folder and create a new file called mono.h
BrokeBroky
Platinian
Help, sorry to bother you
Attachments
BrokeBroky
Platinian
I want add item, item_id is "faith" and item_value is 50
libModz
Platinian On Fire
I made a typo in the monoString struct, replace it with this...
C++:
typedef struct _monoString
{
void *klass;
void *monitor;
int length;
char chars[1];
int getLength()
{
return length;
}
char *getChars()
{
return chars;
}
} monoString;
monoString *CreateString(const char *str)
{
monoString *(*CreateString)(void *instance, const char *str, int start, int length) = (monoString * (*)(void *, const char *, int, int)) getAbsoluteAddress("libil2cpp.so", 0xOFFSET); //offset here
int length = (int)strlen(str);
return CreateString(NULL, str, 0, length);
}Remember to replace 0xOFFSET with correct offset
libModz
Platinian On Fire
Also forget the bool hook that I made previously, I thought you just wanted to return true or false value.
You need to hook AddItem method like this...
Then find an update method (preferably from the same class as AddItem method, this can be Update, FixedUdate, or LateUpdate...
Then under hackthread...
You need to hook AddItem method like this...
C++:
bool (*AddItem)(void *instance, monoString *item_id, int item_value);Then find an update method (preferably from the same class as AddItem method, this can be Update, FixedUdate, or LateUpdate...
C++:
void (*old_Update)(void *instance);
void Update(void *instance) {
if(instance!=nullptr) {
if(IncludeItem) {
AddItem(instance, (CreateString("faith")), 50);
IncludeItem=false;
}
}
old_Update(instance);
}Then under hackthread...
C++:
AddItem = (bool(*)(void*, monoString*, int)) getAbsoluteAddress(targetLibName, 0x61B174);
HOOK("0xOFFSET", Update, old_Update);BrokeBroky
Platinian
It's okay, I was wrong for not telling you what I wanted to do at the beginning. and thank you for helping.
then how to fix this, error in mono.h
Attachments
libModz
Platinian On Fire
Make sure this line in your main.cpp...
C++:
#include "Includes/Mono.h"is underneath this line...
C++:
#include "Includes/Utils.h"BrokeBroky
Platinian
Good no errors, but it doesn't work. whether bool has called true
BrokeBroky
Platinian
never mind, this is working, I entered the wrong offset earlier, thank you very much sir
BrokeBroky
Platinian
I also want to ask something, what if I use the update in another class. what code should be changed?
libModz
Platinian On Fire
What do you mean? Like an update from a different class than the class AddItem is in?
You don't need to change any code just the update offset, you can technically use update from any class when hooking regular methods but sometimes they don't all work which is why it's best to use update from the same class as the method you're hooking
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