Cheat Engine

[jgoemat]

I've just started using ILSpy and dnSpy and they're pretty cool. Editing C# methods with dnSpy and saving an updated 'Assembly-CSharp.dll' works so well, but then any update or reinstall means the changes have to be done all over again. I thought about something that could call the MonoDataCollector and have it load an assembly with updated or new types, or JIT some IL code for a new method. Is there any way to do that? Are there other ways? Trying different things I created a separate solution, referenced the game classes, and tried to create a new method, but the code referenced private and protected fields and a nested enum, so I had to copy the whole class. If I could load that assembly and in ASM, hook the game method, and just jump to the code for my method if the cheat is enabled, would that work? It would be nice to have a method in MonoDataCollector to load a managed assembly. It wouldn't be too hard then to do that.

What about compiling IL in MonoDataCollector? I'm fairly new to this, but check out this method (handling dropping one item from a stack):

[Dark Byte]

perhaps someday
it depends on how mono deals with an unexpected pointerswap for native code back to IL


tip: Look into mono_loadAssemblyFromFile and https://github.com/pardeike/Harmony

edit:
I guess I could always use a c# dll that I control with CE, make it build a method and then compile the original method, and replace it with a jmp to the new method delegate

edit2: You're going to like what i'm adding to CE

e.g kindergarten 2:

[MMM-304]

Q1: how do i eject the code and free memory in disable section when using InjectDotNetDetour to inject the CSCompiled code?

Q2: sorry i do not understand? how do I get access to private fields of parent class from inherited class?

[Dark Byte]

1: replace it with a version that does nothing. It just calls the old function and nothing else

2: use the reflection library.

'this' is the class to inspect

[MMM-304]

1. what I meant by ejecting is removing the images too when the script is disabled. I am using autoAssemble in disable section. It does restore the code but it does not dealloc the compiled CS code (free memory) as expected, neither does it remove the assembly image from the list:

every time I (re)enable the same script, it creates a new image but does not destroy the old one.

2. I tried it:


but it gives an error:


Also it using netstandard as sys in CompileCS does not work so i left it nil. dotnetpatch_getAllReferences could not find mscorlib even though it is in game's directory.
Another question how do I create my own reference that can have both netstandard and mscorlib?

[Dark Byte]

1: Check https://docs.microsoft.com/en-us/dotnet/standard/assembly/load-unload
Basically, it's not that easy as you'll have to unload the whole appdomain, and with multiple threads that can be quite a hassle

Best is to compile once, or use unique/randomized patch classnames
or I guess I could adjust InjectDotNetDetour to get the patched module just from the assembly it just injected instead of relying on the default symbol handler

2:
with reflection I mean something like:

[MMM-304]

ah thanks, I will try it next time I open the game.