jesseemond/cheat-and-gin

C++ cheat engine (memory scanner)

cheat-and-gin's Issues

CheatEngine unit tests

Should be done after #24 to have cleaner tests.

Integration test

Create a test program that exits when a certain variable reaches a certain value, interact with the CheatEngine to attach to that program and change the value to the desired one.

Would probably need unit tests for the cin/cout interaction before doing that though.

Fix Windows version

Need to properly test on windows as I fully expect to break it through refactoring without Windows CI running.

FakeGame: start gold at printable char

and update docs

Test on Minecraft

And add images on the README.

Make console choices with letters instead of numbers

The choice menu:

1 - byte(1)
2 - word(2)
3 - dword(4)
4 - qword(8)
5 - float(4)
6 - double(8)

is a bit confusing with numbers. Might be better with A, B, C, ...

Should also update documentation.

Can't find addresses on notepad memory

1. open notepad.exe
2. type "a" in notepad
3. search for byte "a"
4. no values found

Page where the value is doesn't fit the current criteria? What is going on here?

Add check on new value size

We should verify that a write does not cross a page's boundary with the provided new value size. We are currently okay because our values are fixed size, but it would be better to check that when the user enters a new value.

rewrite cheat-and-gin using golang

Is it difficult to realize this idea?

Pages with calls to ReadProcessMemory that partially fail are ignored

Might be the cause for some values that are not found while testing in Minecraft.

Solution: store the bytesRead and only work with that (updating the memory block).

Show "Keep searching?" options

Not obvious what we're supposed to enter here. y/n? 1/0?

Would be nice to have [Y]/n (default option).

& update docs

String search

Could be interesting to add the "string" value type to search. Would read an std::string and search for the sequence of characters (excluding the null terminator).

Show total potential addresses

Instead of only the # of memory pages

& update docs

Stop searching when there is only one address left

& update docs

Refactor value matches outside of CheatEngine

I think it would be cleaner if we had a class that takes care of holding the "state" of the cheat. This way, we could refactor CheatEngine to be relatively stateless:

auto matches = engine.search(value);
// ...
matches = engine.narrowDown(value, matches);

Error handling via exceptions

Many cases where we just use std::cerr and exit(1). It would be better to bubble up via custom exceptions in these cases. Let the main application take care of the error messages.

Crash when running on big applications

Happened when trying it with Minecraft. Doesn't look like it's easily reproduce-able. Finding out what the error is would be the first step... Next, it might be good to understand the conditions that lead to the crash and make a program that reproduces it.

Memory page count typo

memory pag(es) should be memory page(s).

& update docs

Try with sublime text / notepad++

Test the string search there.

Unit tests

just some a basic UTs setup for now:

• find a value from a memory block
• extract good offsets from a linux memory map file line

Clean includes

See CheatEngine.cpp

Document how a CheatEngine works in CheatEngine/README.md

and point to it from main README

A question about cheat-and-gin source code

Hello Jesse,
First of all, thank you for sharing your work with us.

I am having trouble with something in helper.h file ; in 44 line that is

template
using Reader = std::function<std::istream&(std::istream&, T&)>;

while (!read(std::cin, t) || !validate(t))

I understood that t is loaded by user input via console in Reader function, however i want to bind t with string via programmatically like t= Soccer ... How can I do that? Thank you for your help...

Clean value_t code

How about a polymorphic ValueType class? It would make the implementation of #4 easier and less distinct from the normal integer types.

Linux support

Clean code that searches for matching values within memory chunks

First, common code that goes through a chunk of memory and searches for a specific value should be refactored to be reused on windows/linux.

Second, it would be much cleaner to have a vector of bytes for the chunk of memory and std::search with a vector of bytes representing the value.

Question regarding Source Code Explanation

Hello Jesse,
First of all, thank you for sharing your work with us.

I just wanted to know that where did you do implementation of pure virtual functions like readPage(), getChetablePages() etc.

Change README.md

Give build instructions for premake.

Support strings with spaces

We should be able to search for this is a test. The problem here is that we are asking the std::string via std::cin >>. We should use getline for a String ValueType.

how to use cgo to write cheat engine code

unknown value

i doing my own cheat engine scanner i do the first scan but i do not know how can i get unknown value,
i tried to get all values for ex 8 bit value in all regoins but it take along time in cheat engine it did not take 1 second
so what is the idea of unknown value ??

Create classes for platform-specific operations

Will isolate the communication with the OS and will allow to easily test the app logic through mocking.