Cheat Engine

[xcynic]

Hey. So I'm currently trying to make a script that deletes the gravity in a game when a certain key is pushed down.

I tried reading the tutorial on how to do so, but I think I might have messed up somewhere.

So basically, this is the code that kills the gravity for the game:

[daspamer]

Possibly because that it does the NOP part +popfd+popad
Try this

[Dark Byte]

Are you sure this is the script you're using? Because pressing X has absolutely no effect whatsoever to the result. So it should have crashed when not pressing X as well

[daspamer]

Dark byte I think its because he/she did not add jump to exit.
It executes the other assembly lines.
Also,
I always get crash when I use push/pop fd,ad in Flash games.

So when I want to disable I use 2 ASM entries.
The first one is enabling it.

[xcynic]

Thanks for the answers.

Adding the jmp exit part did not work either (that's how I wrote the script in the begining, but to no avail.)

Dark Byte, I was trying to do what this tutorial here said: http://www.cheatengine.org/keypresstut.php

But maybe I misunderstood what it does. I'm very new to ASM and can quite frankly say that I don't understand most of the expressions I see.

How would one go about to make it so that if I press X (or whatever button) activates this code until the button is released:

[Dark Byte]

something like this:

[SteveAndrew]

@xcynic: Try what Dark Byte suggested... It seems like your problem was you didn't popfd + popad in both code paths (that will for sure crash if you pushad and pushfd, but forget to popfd and popad)

Also forget putting the nops in your code, they don't do anything so don't put them there...

However if for some reason you can't use GetAsyncKeyState in that hook even with preserving the state of the registers and flags, then I suggest run your key handler in a separate thread (in which case you won't have to worry about messing with the registers)

Like this:

[xcynic]