Cheat Engine

kimpet · Newbie cheater Reputation: 0 Joined: 09 Nov 2015 Posts: 22

Is there a way to find cmp instuction comparing player and enemy health?

Zanzer · Posted: Tue Mar 29, 2016 9:35 pm Post subject:

Find player and enemy health then right-click their addresses and find out what instructions access them.

hhhuut · Posted: Wed Mar 30, 2016 1:52 am Post subject:

And/Or dissect and compare their structures and maybe you'll find a value you can compare against yourself ...

kimpet · Newbie cheater Reputation: 0 Joined: 09 Nov 2015 Posts: 22

hhhuut · Posted: Wed Mar 30, 2016 2:08 am Post subject:

Of course you won't find a cmp opcode directly when debugging health addresses ... But as you can see there are more address that access the enemy health than your own which means that some of those routines (69F7EE45 and 69EABEA8) are enemy only which is already some point to start with ...

kimpet · Newbie cheater Reputation: 0 Joined: 09 Nov 2015 Posts: 22

hhhuut · Posted: Wed Mar 30, 2016 3:56 am Post subject:

Are you absolutely sure that all of the addresses of group 1 belong to the enemy and the same for group 2 (just asking) ?

Also did you compare the structure further down like to offset 300 and not only to offset 88?

kimpet · Newbie cheater Reputation: 0 Joined: 09 Nov 2015 Posts: 22

hhhuut · Posted: Wed Mar 30, 2016 4:22 am Post subject:

Did you already compare the register status' at the location you want to do a code injection?
Probably some register is 0 for the enemy and 1 for humans or something like that ...

kimpet · Newbie cheater Reputation: 0 Joined: 09 Nov 2015 Posts: 22

hhhuut · Posted: Wed Mar 30, 2016 4:58 am Post subject:

SunBeam · Posted: Wed Mar 30, 2016 11:20 am Post subject:

Company of Heroes 2?

Cake-san · Posted: Wed Mar 30, 2016 5:55 pm Post subject:

Judging by the picture, y u no compare that offset 34 ? Confused

kimpet · Newbie cheater Reputation: 0 Joined: 09 Nov 2015 Posts: 22

SunBeam · Posted: Thu Mar 31, 2016 5:21 am Post subject:

I'll have a stab at it.

You might want to think of this as well: in the structure you investigate for the comparison, you might need to go up (or down) one level. Say.. offset 34 referenced by Cake-san is a pointer. This pointer leads to a memory region where you'd find a differentiation between the player and enemy. In short, that difference you look for is not always in the first structure (the one where health is). Health can be a sub-system of the player structure. As such, to find the player structure you'd have to "exit" the sub-system (your pointer here).

One more thing you can do is to figure out how big the structure is (how it's allocated, via GlobalAlloc or some other method). If you figure that out, then investigate the function that populates the structure with data and you'll find your differentiation Wink

Both the enemy and player structures will be populated by same function, but a bit different, based on some checks that happen within. Those would be the dead-giveaways.

..or see what Recifense does here: http://forum.cheatengine.org/viewtopic.php?t=565501.

BR,
Sun