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Programmers / [Reversing] [Reversing] Finding Entitylist in Just Cause 1
« on: December 16, 2018, 10:45:09 pm »
first.. i started looking at strings...
i found something interesting:
"MaxNofChars(%d)met, chars:%d\n"
so i looked at it, and found out that its calling a few things with (0) as nullptr,which means that it's getting the address in Text View but psuedocode messes up and shows 0.
i looked at them in reclass, sure enough they have pointers that look like they are storage for a list
Code: [Select]
char __thiscall sub_474B50(_BYTE *this)
{
int v1; // eax
char result; // al
int v3; // eax
int v4; // [esp+0h] [ebp-8h]
unsigned int v5; // [esp+4h] [ebp-4h]
v4 = (int)this;
v5 = CEntityList::CountValidEntities(0);
if ( v5 <= *(unsigned __int16 *)(v4 + 60) )
{
if ( v5 != *(unsigned __int16 *)(v4 + 60) || (unsigned __int8)sub_474CB0(v4) )
{
result = 1;
}
else
{
if ( *(_BYTE *)(v4 + 54) )
{
v3 = CEntityList::CountValidEntities(0);
nullsub_1("MaxNofChars(%d)met, chars:%d\n", *(unsigned __int16 *)(v4 + 60), v3);
}
result = 0;
}
}
else
{
sub_474CB0(v4);
if ( *(_BYTE *)(v4 + 54) )
{
v1 = CEntityList::CountValidEntities(0);
nullsub_1("MaxNofChars(%d)met, chars:%d\n", *(unsigned __int16 *)(v4 + 60), v1);
}
result = 0;
}
return result;
}This is the function that appears to count the number of valid entities
Code: [Select]
int __thiscall sub_4D3A60(int this)
{
int *v2; // [esp+4h] [ebp-1Ch]
int *v3; // [esp+8h] [ebp-18h]
int v4; // [esp+Ch] [ebp-14h]
v3 = *(int **)(this + 0x28);
v2 = *(int **)(this + 0x24);
v4 = 0;
while ( v3 != v2 )
{
if ( sub_4D3A20(*v2) )
++v4;
++v2;
}
return v4;
}
//For the valid entity check
bool __cdecl sub_4D3A20(int a1)
{
return (*(_DWORD *)(a1 + 2180) >> 6) & 1 && !sub_597B80((char *)a1);
}
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