Cheat Engine

akimikage · Cheater Reputation: 0 Joined: 04 Nov 2009 Posts: 38

So I'm playing DS II again and I want to play it now with cheats. I'm making a multiplier for the souls I get. I already got what address adds the souls

mov [ecx+000000E8],eax

Now, when I edit the address like this

mov [ecx+000000E8],eax
add [ecx+000000E8],eax

Instead of doubling the souls I get from monsters, it adds the souls I currently have then doubles the souls I get from monsters. For example, I currently have 1000 souls then I kill a monster worth 30 souls. Instead of getting 1030 souls, I get 2060. So my guess is only part of mov [ecx+000000E8],eax is the souls I get from the monsters. The problem is I don't have any background in any coding language so everything I tried didn't work. It's either cheat engine doesn't inject the code or when cheat engine does inject the code the game crashes.

I know it's easier to just edit the souls itself but I'm also doing this so I can make multipliers on other games in the future too . Laughing

Gniarf · Posted: Tue Feb 17, 2015 10:15 am Post subject:

http://forum.cheatengine.org/viewtopic.php?p=5483595

aikoncwd · Posted: Tue Feb 17, 2015 11:07 am Post subject:

akimikage · Cheater Reputation: 0 Joined: 04 Nov 2009 Posts: 38

Okay, I've tried everything from that link and one of the results is the same from what I've been doing which is adding the current souls + the doubled souls from the monsters. Other result is instead of getting doubled souls from monsters, I get doubled of my current souls. I'm still figuring out what I'm supposed to do with all the clues I've got from the link but it'll be faster if you guys spoonfeed me Cool

Edit : Okay, this is confusing. I experimented with the clues that I've got and I think the part that I should multiply is [ecx+000000E8] ? coz I when I try this

imul eax,eax,3
mov [ecx+000000E8],eax

I get x3 of my current souls + x3 of the souls I get from monsters but I can't multiply [ecx+000000E8].

Edit 2: So how can I multiply or add [ecx+000000E8] by itself ?

mov [ecx+000000E8]*2,eax doesn't work

Edit 3 : Okay, I really have no idea what's going on so here are the results of my experiment that I think can you help you guys solve this

add [ecx+000000E8],eax
move [ecx+000000E8],eax -

adds my current souls + double of the souls I get from the monsters. I.E 1000 current souls and killing 30 souls worth of monster = 2060 souls

while

add eax,dword [ecx+000000E8]
move [ecx+000000E8],eax

adds my current souls + souls I get from monsters. I.E 1000 current souls and killing 30 souls worth of monster = 2030 souls

The result I want is to have 1000 current souls and killing 30 souls worth of monster = 1060 souls

Gniarf · Posted: Tue Feb 17, 2015 3:23 pm Post subject:

@akimikage: When we wrote this:

Zanzer · Posted: Tue Feb 17, 2015 5:26 pm Post subject:

Sounds like EAX is holding the total after both numbers have been combined.
Scroll up in the code block and see what values change EAX.

My guess is somewhere you'll see:
mov eax,[ecx+000000E8]
add eax,[some other value]

Otherwise, you'll likely see:
mov eax,[some other value]
add eax,[ecx+000000E8]

To double the value earned, simply add to the EAX register again:
add eax,[some other value]

aikoncwd · Posted: Tue Feb 17, 2015 6:36 pm Post subject:

I want to give a tip for this, this example is for the game "Darkest Dungeon":

This is the original code:

mgr.inz.Player · Posted: Tue Feb 17, 2015 7:28 pm Post subject:

akimikage · Cheater Reputation: 0 Joined: 04 Nov 2009 Posts: 38

Thanks guys. I found a code that works

sub eax,[ecx+000000E8]
add eax,eax
add [ecx+000000E8],eax

for some reason

sub eax,[ecx+000000E8]
shl eax,1
add [ecx+000000E8],eax

crashes the game Confused

and I found a code before mov [ecx+000000E8],eax which is mov eax,eax and doubling the code crashes the game too. Why is that ?

Edit : Can you guys redirect me to an explanation of the terms used here ? like mov and lea ? Maybe I can figure them out on my own if I know the meaning of these

Gniarf · Posted: Wed Feb 18, 2015 1:48 am Post subject:

The definition of each assembly instruction can be found in Intel® 64 and IA-32 Architectures Software Developer’s Manual, volume 2, chapter 3.2 and 4.2 .

aikoncwd · Posted: Wed Feb 18, 2015 10:07 am Post subject:

I use this wikipedia article:

http://en.wikipedia.org/wiki/X86_instruction_listings

Ctrl+F -> Search (lea, for example)

SteveAndrew · Posted: Wed Feb 18, 2015 1:08 pm Post subject:

How about some alternatives just for good measure or in case you wanted to multiply it by an arbitrary amount, or so it doesn't have to be a power of 2. (Like with bit shifting)

Multiply By Integer Value: