Cheat Engine

Jacusiek

Hello there. At first I would like to say, that I'm totally new to scripts, and I want to learn something about them. I would like to start something "easy", and to make script for my game "Sacred", which will give me "God Mode" (of course I can use pointers, but scripts are better and work always). After I did some scans I added my HP value to the table, and pressed: Find out what writes to this address. After some changes in HP in game, I found out some points (All images and descriptions to them are below). The main problem is that, when I press "Replace with code that does nothing" I don't lose HP, neither my enemies - that's the problem and that's why I want to learn scripting, so when I will write one, it will make only my hero (and optionally other people, who sometime join me) will have God Mode. I read some tutorials about scripts but I will understand it better by writting my own script. I would like to make when the value of that script is 1, then script is activated and I have God Mode, and when the value is 0, I don't have God Mode. Please, help.

Thanks in advance
Jacusiek

sp4rx · Posted: Wed Jun 12, 2013 6:42 am Post subject:

This is happening because your enemies are also using the same code for their HP

dissect data/ sturctures may help here

Did you completed the last step(step-9) of the tutorial??? It is same as the last step of the tut.

I don't have this game so the tutorial is a better option for helping you.

See this tutorial
http://forum.cheatengine.org/viewtopic.php?t=530548&sid=2f4df3f1be963a92e8d0f09cfb662f36

docblue · Posted: Wed Jun 12, 2013 8:08 am Post subject:

EBP is probably a structure of you and enemies, EBP+130 may be the health of whoever EBP is. I agree with sparx and definitely check out the dissect data/structures tutorials.

Jacusiek · Posted: Wed Jun 12, 2013 8:53 am Post subject:

Now, according to that link:

sp4rx · Posted: Wed Jun 12, 2013 1:45 pm Post subject:

Hey Jacusiek you didn't get the right thing, Your Script is wrong

I am showing here the steps for the tut(step-9), Later i will show you for your game

1st you have to find some of your unit and enemy unit's HP
In the tut Dave and Eric is your unit and Hal and Kitt is enemy unit
You need to find all the 4 address of their HP

And the code which is writing their health is

Jacusiek · Posted: Wed Jun 12, 2013 2:33 pm Post subject:

Well... In structure dissect in tutorial I can easly find line with 1, 1, 2, 2 - groups, but in my game I cannot find line with 1, 2, 2, 2 (1 - me, 2 - enemies) and I cannot write script for something I can't find.

Gniarf · Posted: Wed Jun 12, 2013 2:59 pm Post subject:

Find what accesses your HP. For each results, select it in the disassembler and click "find what addresses this function accesses"*, then go see one enemy. Note that you can monitor a maximum of 4 addresses at a time, so you might need several attempts to test all the instructions that access your HP.
Anyway, if amongst the instructions you were monitoring, there is one instruction that accesses only one address, hook it to store your HP's address somewhere. Then in the function that applies damage compare the address of the updated HP with the stored HP address.

Other than that, don't ditch the pointer approach, for example if you find a stable pointer to your HP, you can use it for comparison in the function that applies damage...I know you also want to godmode your friends, but the pointers to their health should be very very similar.

Otherwise you can find hints to differentiate player vs enemies here on the first page (the 2nd is game-specific).

Jacusiek · Posted: Wed Jun 12, 2013 3:26 pm Post subject:

mgr.inz.Player · Posted: Wed Jun 12, 2013 4:08 pm Post subject:

Jacusiek · Posted: Wed Jun 12, 2013 4:12 pm Post subject:

Gniarf · Posted: Wed Jun 12, 2013 4:16 pm Post subject:

mgr.inz.Player · Posted: Wed Jun 12, 2013 4:19 pm Post subject:

Jacusiek · Posted: Wed Jun 12, 2013 4:29 pm Post subject:

Gniarf, I tried Your script it, works, but a bit, because when I get hit my HP gets crazy and goes to value, eg. 50, then very fast goes up to 253, then 364, then 646, then again to 50, again to 253, etc... After all I can still die. Maybe I found wrong instructions?

@Off, Yes, it was Wilbur, that little, blue guy Very Happy

@Edit: I have found 4 new instructions:
1) sacred.exe+16FE79 (first one):
When I press "replace with code that does nothing" it allows my HP only to increase (my enemies are invulnerable too)
2) sacred.exe+16FF54 (second one):
The same as first one
3) sacred.exe+163020 (third one):
When I press "replace with code that does nothing" it allows my HP only to DECREASE (I think it's wrong one, but my enemies' HP can only decrease too)
4) The last one is exactly the same as the second (I don't know why I put it twice)

But there is a problem to those instructions, because when I press "find what addresses this function accesses" it finds me more than just my HP (my enemies) but I found my Hero ID:

My Hero ID for all of them is (probably, I hope so) 142 and the offset of it is 0040 (4 bytes)

Gniarf · Posted: Wed Jun 12, 2013 4:54 pm Post subject:

@Jacusiek: Then max HP is not at ebp+134. I see that in your script you used ebp+12c, but the old godmode used HealthAddress+4 that's why I used ebp+134. Anyway you just need to update the "mov edi,[ebp+00000134]" line.

Worst case scenario, do as mgr.inz.Player said: mov edi,(float)9999

Jacusiek · Posted: Wed Jun 12, 2013 5:18 pm Post subject:

It works but it also changes my textures of game, so it is good way to get epilepsy. Now I found some instructions to Max HP and I'm trying to change them...

@Edit: I have found one, which works and replaced it so it is now:
mov edx,[eax+000004D8] (unfortunately it works only for my hero)

@Edit2: I don't know why it isn't working, in every situation max HP is 4 offset back (when 0130 is current HP, 012C is max HP). I checked it and it should work for companions, but it doesn't.