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NSpe
How do I cheat?
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Joined: 24 Aug 2021
Posts: 3
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 Posted: Tue Aug 24, 2021 6:09 pm Post subject: How to find adjacent values |
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Good day everyone!
For a start, I just registered here and got such message at first log on, probably little bug or something: | Code: | phpBB : Critical Error
Error updating last visit time
DEBUG MODE
SQL Error : 1366 Incorrect integer value: '' for column 'user_last_nonowner_fnid' at row 1
UPDATE cephpbb_users SET user_session_time = 1629847984, user_session_page = 0, user_lastvisit = 1629847984 ,user_lastip='-_-' ,user_lastfnid='560547', user_last_nonowner_fnid='', user_previouslastip='' WHERE user_id = 560547
Line : 303
File : sessions.php |
My question is, is there a way to search for adjacent values — for example, when you have several in-game parameters that are usually used together, such as 10 Strength, 15 Dexterity, 13 Intelligence etc; can you somehow search for values 10 15 13 .. to find out where they are used side by side in the code?
Edit: And, as an extension for this question, is there a way to search for something like player coordinates using an algorithm like this:
Search for three adjacent unknown values
Move player
Search three changed
..Repeat..
Don't move
Search three unchanged
..Repeat..
If there is more than one three-value item, somehow (how?) search for player position signs
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Birdi
Expert Cheater
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Joined: 08 Jun 2020
Posts: 124
Location: Migrating
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| Posted: Tue Aug 24, 2021 6:42 pm Post subject: |
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It depends on how the game stores those values.
There's a possibility they're stored literally like that, as single bytes, in smaller/older games:
| Code: |
//10 15 13 11 09 18
//0A 0F 0D 0B 09 12
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In that case you can just aobscan for that array of bytes (0A 0F 0D 0B 09 12) and it should find them if it exists. If you're unsure use the gray setting on the "writable" and "executable" scan options.
More likely values like these are stored as 4byte integers in memory, or possibly even floats.
4bytes:
| Code: |
//10 ** ** ** 15 ** ** ** 13 ** ** ** 11 ** ** ** 09 ** ** ** 18 ** ** **
//0A 00 00 00 0F 00 00 00 0D 00 00 00 0B 00 00 00 09 00 00 00 12 00 00 00
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Floats:
| Code: |
//10 ** ** ** 15 ** ** ** 13 ** ** ** 11 ** ** ** 09 ** ** ** 18 ** ** **
//00 00 20 41 00 00 70 41 00 00 50 41 00 00 30 41 00 00 10 41 00 00 90 41
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They might not even be directly adjacent to each other in memory, and may be separated by further offsets.. you have to tinker around if you're working blindly. It's easier to find them by scanning changed values and seeing how they look manually from there.
+Edit:
Finding coordinates is not super easy, but you can often find them by looking at your Z (height) coordinate in 3D games, or either X or Y in 2D games.
Scanning your changing height should be very easy since you know it's either higher or lower directly, compared to an otherwise unknown X or Y axis. Some engines will have easier ways to find these, like UE4 games you may use the Universal Unreal Console Unlocker tool to gain access to the console and a basic engine debug command will show you the coordinates of player objects, etc. Coordinates are almost always floats.
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Birdi. |
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NSpe
How do I cheat?
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Joined: 24 Aug 2021
Posts: 3
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| Posted: Tue Aug 24, 2021 8:10 pm Post subject: |
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Thanks a lot for byte search suggestion, especially for conversion examples (I just started learning depths of CE and this is very helpful).
As you said, there may be something between the desired values, so it will be hard to search without the abilities similar to regex search. Does CE have them?
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ParkourPenguin
I post too much
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Joined: 06 Jul 2014
Posts: 4718
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| Posted: Tue Aug 24, 2021 8:52 pm Post subject: |
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There's a "grouped" value type you can look into.
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I don't know where I'm going, but I'll figure it out when I get there. |
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NSpe
How do I cheat?
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Joined: 24 Aug 2021
Posts: 3
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| Posted: Wed Aug 25, 2021 10:01 pm Post subject: |
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| ParkourPenguin wrote: | | There's a "grouped" value type you can look into. |
Thanks! It seems to be what I was looking for
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