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Some address seems like they don't exist

 
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MajorPsycho
How do I cheat?
Reputation: 0

Joined: 30 Oct 2016
Posts: 7

PostPosted: Tue Jan 31, 2017 5:17 am    Post subject: Some address seems like they don't exist Reply with quote

Hi everyone

I am currently trying to access different data from the game FTL : Faster Than Light (steam version 1.5.13).

I found dozens of them, by scanning multiple times until I find where the data is stored, and then by looking at what access this storage, step by step find the static address and the chain of offsets which leads to the stored data.

However, as you can see in the screenshot I'll upload with this post, for some data, there is NOTHING which access the stored data. Impossible to track back the static address. I am really confused.

Please enlight me !



cheatEnginePb.png
 Description:
You can see the game is running, the data I'm working on is a float which goes from 0 to 1 and represent the percentage of charge of the weapons, and CheatEngine has 0 results for the hexadecimal address it gives me just before
 Filesize:  546.16 KB
 Viewed:  4819 Time(s)

cheatEnginePb.png


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Cake-san
Grandmaster Cheater
Reputation: 8

Joined: 18 Dec 2014
Posts: 541
Location: Semenanjung

PostPosted: Tue Jan 31, 2017 6:31 am    Post subject: Reply with quote

You can try learning backtracing method...

Real address of percentage of charge of the 1st weapon: [[[[FTLGame.exe+39BAA4]+20]]+150]+8

According to the image , you should scan for EBX=0CF876A8 because of this instruction :



Capture.PNG
 Description:
 Filesize:  35.52 KB
 Viewed:  4805 Time(s)

Capture.PNG



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MajorPsycho
How do I cheat?
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Joined: 30 Oct 2016
Posts: 7

PostPosted: Thu Feb 02, 2017 11:19 pm    Post subject: Reply with quote

Thank you very much for your reply.

I had a look at backtracing method, but so far I didn't understand the methodology... Even in your screen, I see neither "EBX", nor the hexadecimal value 0CF876A8, so I really wonder how do you guess it's this one.

Also, for the address you gave me... FTLGame.exe+39BAA4 is definitely a good begining, as several other values begin with this one. However, the full address you gave me doesn't lead to the expected value. I tried to move a little each offset, in case you made a typo, but didn't find it.

I am going back to trying to learn backtracing. I'd be grateful if you could give me some hints about the issues I mentionned !
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