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Speed hack inspired from Cheat Engine sources

 
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COBIT
How do I cheat?
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Joined: 01 Aug 2017
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PostPosted: Tue Aug 01, 2017 1:45 am    Post subject: Speed hack inspired from Cheat Engine sources Reply with quote

Hi,

I made a Speed Hack dll inspired from Cheat Engine source code.

It is written in C++ and it is basically a DLL injection with hooks of the time APIs exactly like CE does it (GetTickCount64, GetTickCount and QueryPerformanceCounter)

It works BUT when I slow down time the game is not fluid any more at the level of graphics and sounds. (there are cuts in sound and frame per second drop a lot)

At first I found it normal since I am after all braking the time right?

But when I do the exact same thing with CE, it plays smoothly !?

Is there something I overlooked in the CE sources?

How come the Directx graphics and sound rendering can stay fluid while time is slowed down?

Thanks
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Dark Byte
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Joined: 09 May 2003
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Location: The netherlands

PostPosted: Tue Aug 01, 2017 8:30 am    Post subject: Reply with quote

is your speedhack based on 5.6 or later or earlier ?

e.g make sure there is no sleep() inside the hook (or any other delay)

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COBIT
How do I cheat?
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Joined: 01 Aug 2017
Posts: 2

PostPosted: Tue Aug 01, 2017 10:41 am    Post subject: Reply with quote

Thank you for your advice Dark Byte.

Dark Byte, your software is brilliant and you are some sort of legend to me so I would like to tell you how much I am happy to interact with you finally today Cool

I am inspired from your new method of Speed Hack so the "new" one using injection.

I found what the problem was:
The hook functions I wrote obviously have to manage the concurrency (multi threading) and I originally used a stupid mutex for that.

That kind of mutex is too slow because it puts at sleep the threads that failed to gain the lock. Commutation time is really bad.

Now I am using SpinLock mutex which are way way faster and the game is totally fluid and the speedhack works perfectly.

It was a good learning experience for me

Again, thank you for responding and for your time

COBIT
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