//==========WriteHook=============
#define OPCODE_JUMP 0xE9
#define OPCODE_CALL 0xE8
#define OPCODE_NOP 0x90

#define HOOKTYPE_JUMP 0
#define HOOKTYPE_CALL 1

#define HOOK_SIZE 5

//работа с памятью
void WriteHook( void *pOriginal, void *pNew, char type )
{
    *(char*)pOriginal = (type==HOOKTYPE_JUMP)?OPCODE_JUMP:OPCODE_CALL;
    *(void**)( (char*)pOriginal + 1 ) = (void*)( (char*)pNew - (char*)pOriginal - HOOK_SIZE );
}
//===================================

int _edi() {__asm{mov eax, edi}}
int _esi() {__asm{mov eax, esi}}

int (__fastcall *sub_44FBE0)(int _this, int edx, short x, short y, short w, short h, short a6, short a7) =
(int (__fastcall *)(int, int, short, short, short, short, short, short))(0x44FBE0);


int __fastcall BuildingCoordsHook(int _this, int edx, short x, short y, short w, short h, short a6, short a7)
{
    int esi = _esi();
    

    x = 800 - x - w;

    *(int*)(esi+8) = x;

    return sub_44FBE0(_this, edx, x,y,w,h,a6, a7);
}



BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
                     )
{
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
        {
            WriteHook((void*)0x5C3377, (void*)(BuildingCoordsHook), HOOKTYPE_CALL);
            
            break;
        }
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}