Cheat Engine

[jgoemat]

I'd like to write a hack to work with a game's (Tropico 4's) LUA state. Has anybody done this or have any suggestions? Tropico 4 has lua51.dll in it's game directory, I was thinking I could have an AA script that hacked into it's function that creates a new state and store that value, then call the dll's functions myself to run my own scripts. If I can't do that I could hack another function that is used in the DLL and get the most recent LUA state passed to it.

Is this a good way to go about it or does anyone have any other suggestions? I think it would be cool to have my own pop-up LUA console in the game where I could type things like "player.money = 9999999". Are there any existing tools that enable functionality like that in a running EXE?

[Dark Byte]

It's easiest to hook an often called lua function so your code executes in the same thread, thus no threading issues (often lua is compiled without threading support)

lua_gettop() is called often, so that is a good spot to hook

In there check if a lua command is waiting, and if so call lual_loadstring followed by lua_pcall (do use critical sections in case it is multithreaded)

[Gniarf]

[mgr.inz.Player]

What Gniarf said.

Also, I updated my script (proper error handling, etc.) and posted it here:
http://forum.cheatengine.org/viewtopic.php?t=564665
a day after my last post ("Love2D" topic) I created above topic.

Of course you have to adjust it for your Lua version.