[Tutorial] How to find simple stuff

[sucu]

My comment was directed at "Nextlive", not you. His post clearly indicates he is in over his head here.

I already did not say for you. Many ppl prefer raging before helping. And my question is still up to date.

[net7]

Hey, I have a quick question. I'm looking at GetCorpseMapPosition

; sub_873A80
; Attributes: bp-based frame

//Start Method

var_28= qword ptr -28h
var_1C= qword ptr -1Ch
var_14= dword ptr -14h
var_10= byte ptr -10h
var_C= dword ptr -0Ch
var_8= dword ptr -8
var_4= dword ptr -4
arg_0= dword ptr  8

push    ebp
mov     ebp, esp
sub     esp, 1Ch
xorps   xmm0, xmm0
push    esi
lea     eax, [ebp+var_10]
push    eax
lea     ecx, [ebp+var_1C]
push    ecx             ; double
lea     edx, [ebp+var_4]
push    edx
movss   dword ptr [ebp+var_1C], xmm0
movss   dword ptr [ebp+var_1C+4], xmm0
movss   [ebp+var_14], xmm0
;Call to fnc(dword*,qword*,char*)
call    sub_82D640
mov     edx, [ebp+var_4]
push    0
push    0
push    0
lea     eax, [ebp+var_C]
push    eax
lea     ecx, [ebp+var_8]
push    ecx
push    edx
lea     eax, [ebp+var_1C]
push    eax
call    sub_871D50
fld     [ebp+var_8]
mov     esi, [ebp+arg_0]
fstp    [esp+48h+var_28]
add     esp, 20h
push    esi             ; int
call    sub_4359D0
fld     [ebp+var_C]
add     esp, 4
fstp    [esp+28h+var_28]
push    esi             ; int
call    sub_4359D0
add     esp, 0Ch
mov     eax, 2
pop     esi
mov     esp, ebp
pop     ebp
retn
//End method

Hex-rays

signed int __cdecl sub_873A80(int a1)
{
  double v3; // [sp+Ch] [bp-1Ch]@1
  char v5; // [sp+18h] [bp-10h]@1
  float v6; // [sp+1Ch] [bp-Ch]@1
  float v7; // [sp+20h] [bp-8h]@1
  int v8; // [sp+24h] [bp-4h]@1

 ;Zero the floats/double
  __asm
  {
    xorps   xmm0, xmm0
    movss   dword ptr [ebp+var_1C], xmm0    
    movss   dword ptr [ebp+var_1C+4], xmm0
    movss   [ebp+var_14], xmm0
  }
 //Calls a function fnc(dword *,qword*,char*)
  sub_82D640(&v8, &v3, &v5);
//What does this do?
  sub_871D50(&v3, v8, &v7, &v6, 0, 0, 0);
  ;Put Y on the return value?
  sub_4359D0(a1, v7);
  ;Put X on the return value?
  sub_4359D0(a1, v6);
  return 2;
}

I dont understand exactly where or what function could possibly retrieve the x/y/z of the corpse. It seems to be sub_871D50 but when I looked at that, it was a veeeeery long function. Not much I could understand from it.
Any help please?

Thank you!

[Flushie]

Hey, I have a quick question. I'm looking at GetCorpseMapPosition

; sub_873A80
; Attributes: bp-based frame

//Start Method

var_28= qword ptr -28h
var_1C= qword ptr -1Ch
var_14= dword ptr -14h
var_10= byte ptr -10h
var_C= dword ptr -0Ch
var_8= dword ptr -8
var_4= dword ptr -4
arg_0= dword ptr  8

push    ebp
mov     ebp, esp
sub     esp, 1Ch
xorps   xmm0, xmm0
push    esi
lea     eax, [ebp+var_10]
push    eax
lea     ecx, [ebp+var_1C]
push    ecx             ; double
lea     edx, [ebp+var_4]
push    edx
movss   dword ptr [ebp+var_1C], xmm0
movss   dword ptr [ebp+var_1C+4], xmm0
movss   [ebp+var_14], xmm0
;Call to fnc(dword*,qword*,char*)
call    sub_82D640
mov     edx, [ebp+var_4]
push    0
push    0
push    0
lea     eax, [ebp+var_C]
push    eax
lea     ecx, [ebp+var_8]
push    ecx
push    edx
lea     eax, [ebp+var_1C]
push    eax
call    sub_871D50
fld     [ebp+var_8]
mov     esi, [ebp+arg_0]
fstp    [esp+48h+var_28]
add     esp, 20h
push    esi             ; int
call    sub_4359D0
fld     [ebp+var_C]
add     esp, 4
fstp    [esp+28h+var_28]
push    esi             ; int
call    sub_4359D0
add     esp, 0Ch
mov     eax, 2
pop     esi
mov     esp, ebp
pop     ebp
retn
//End method

Hex-rays

signed int __cdecl sub_873A80(int a1)
{
  double v3; // [sp+Ch] [bp-1Ch]@1
  char v5; // [sp+18h] [bp-10h]@1
  float v6; // [sp+1Ch] [bp-Ch]@1
  float v7; // [sp+20h] [bp-8h]@1
  int v8; // [sp+24h] [bp-4h]@1

 ;Zero the floats/double
  __asm
  {
    xorps   xmm0, xmm0
    movss   dword ptr [ebp+var_1C], xmm0    
    movss   dword ptr [ebp+var_1C+4], xmm0
    movss   [ebp+var_14], xmm0
  }
 //Calls a function fnc(dword *,qword*,char*)
  sub_82D640(&v8, &v3, &v5);
//What does this do?
  sub_871D50(&v3, v8, &v7, &v6, 0, 0, 0);
  ;Put Y on the return value?
  sub_4359D0(a1, v7);
  ;Put X on the return value?
  sub_4359D0(a1, v6);
  return 2;
}

I dont understand exactly where or what function could possibly retrieve the x/y/z of the corpse. It seems to be sub_871D50 but when I looked at that, it was a veeeeery long function. Not much I could understand from it.
Any help please?

Thank you!

Looks confusing. Question answered.

[simplecan]

Very usefull for me. Thank you!

[ezqu24]

very nice guide +rep! however how to find stuff like isingame? chatbuffer etc? :]

[para_]

And finally in C# :

string minimapZoneText = SMemory.ReadASCIIString(mp.WindowHandle, SMemory.ReadUInt(mp.WindowHandle,0x113D778), 30);
Console.WriteLine("GetMinimapZoneText : " + minimapZoneText);

Sorry for bumping this old thread, but I'm having trouble understanding how this C# code was gleaned. Any help is appreciated.