[1.0.1 9558] OOP - How do I read the GUID?

[Tanaris4]

I'm trying to read the user's GUID from OOP vs. calling GetPlayerGUID(). Has anyone achieved this?

I'm simply trying to navigate it through cheat engine but it looks liek the 64-bit integer I'm getting can't be a traditional GUID (based on my knowledge of wow, so it could be completely correct)

signed int __cdecl GetPlayerGUID()
{
  int v0; // esi@1
  int v1; // eax@3
  int v2; // eax@4
  signed int result; // eax@5

  v0 = *(_DWORD *)(dword_156C8CC + 0x934);
  if ( v0
    && *(_DWORD *)v0 != -1
    && (v1 = *(_DWORD *)(sub_94BB80() + 0xA8)) != 0
    && (v2 = 0x7FF8 * *(_DWORD *)v0 + v1 + 0x58) != 0 )
    result = *(_DWORD *)(v2 + 8);
  else
    result = -1;
  return result;
}

v0 = [[Diablo III.exe+156C8CC] + 0x934]
v1 = [[[Diablo III.exe+156C8CC] + 0x77C] + 0xA8]
v2 = 0x7FF8 * [v0 + v1 + 0x58]

Then the GUID should be here: [v2 + 8], but of course, this isn't what I'm getting. Thoughts?

[Nesox]

It's not a 64 bit integer it's a 32 bit signed integer

They use it alot in d3 if it's -1 it's Invalid hence it needing to be signed.

Also there's 2 different or more functions for getting the player guid.

One is for the ACD and the other is RActor

[Tanaris4]

I have much to learn, as it turns out, I've just been poking around in IDA (and trying to find the comparable functions on OS X, not fun). Is there a crash course anywhere (didn't see one here or on blizzhackers) on ACD/RActor?

(Or should I just load up D3Advanced in Reflector?)

[Nesox]

Read all the older threads here first looking at D3Advanced probablly won't give that much.
Figure out how to iterate RActors/ACD's however RActors is probablly more useful ACD's you can use to get stats etc. so they are both equally important.

[Tanaris4]

Appreciate it thanks!

[KOS0937]

They use it alot in d3 if it's -1 it's Invalid hence it needing to be signed.

Why? You can compare it to 0xFFFFFFFF = (unsigned)(-1) which is defined to be an error value without the variable being signed itself.

[Nesox]

Yes obviously you can treat them as either signed or unsigned. But Imo i think it's easier to treat them as signed values ( less typing etc. )
Whatever floats yer boat!

[BitHacker]

I don't understand why you need to find the GUID?

[Tanaris4]

Just trying to reverse on os x, anything I can find is a step in the right direction

[Tanaris4]

Just an FYI, for those that would like to do this OOP (granted it's on OS X, so sub your windows offsets):

        int32_t ptr_OffsetManager = [memory readInt:Offset_ObjectManager];
        
        if ( ptr_OffsetManager > 0 ){
            int32_t offset_3 = [memory readInt:ptr_OffsetManager + 0xC];
            
            if ( offset_3 > 0 ){
                v0 = [memory readInt:offset_3 + 0x92C];
                
                // time to get v2
                if ( v0 > 0 && v0 != -1 ){
                    
                    v2 = [memory readInt:offset_3 + (0x774 + 0xA8)]; 
                    
                    if ( v2 != 0 ){
                        guid = [memory readInt:v2 + 0x7FD0 * [memory readInt:v0] + 0x60];
                    }
                }
            }
        }