ReadProcessMemory - Items on Ground

Kira29 · **Joined:** Sun Apr 01, 2012 4:49 pm

Hi,

is it possible to get a list of all items that are on the ground via ReadProcessMemory()?
It's surely possible, but did anyone found out the correct addresses for it already?

Cheers,
Kira

FireFromTheSky · **Joined:** Sat Mar 17, 2012 5:39 pm

If there's something, it will be in this thread.

Vampirewolve · **Joined:** Tue Mar 01, 2005 8:31 pm

Just check 0x9C or loop through the rooms.....

Code: Select all

for(UnitAny* pUnit = pRoom->pUnitFirst;pUnit;pUnit = pUnit->pListNext)
            {
               if(pUnit->dwType ==UNIT_TYPE_ITEM)
               if(pUnit->dwMode == 3 || pUnit->dwMode == 5) 
               {
                                        //Do whatever you want
                                         }                                  
                                  }

SmokinJoe1 · **Joined:** Tue Apr 29, 2008 5:10 am

I have tried several different methods, the one I most liked and the easiest to write and configure was watching for specfic 9c information then running separate functions to handle the actual item info, probably best to just use one or the other, I never got that into item/pickit stuff

Kira29 · **Joined:** Sun Apr 01, 2012 4:49 pm

Hey,

thanks for your answers.. but unfortunately I am totaly new to d2 hacking, I never used any of the tools out there etc, so I have no clue what all this is you mentioned..

What are "rooms"? How do I loop trough them?

I am very experienced in developing with C++, that's why I thought I could simply use ReadProcessMemory().. all I need for this is the addresses fo the items - I can try to find them myself and reverse engineer it, but maybe someone did this already

Cheers,
Kira

Shaggi · **Joined:** Mon Jul 13, 2009 5:13 pm **Location:** Denmark

Hello kira.
I already did a lot of this stuff in the language autoit, which is pretty easy to convert to c++. Here's an example of what you want to do (converted, not tested):

Code: Select all

HANDLE g_hProc;
inline DWORD pread(DWORD address, HANDLE hProc = g_hProc) {
   DWORD temp;
   ReadProcessMemory(hProc,(void*)address, &temp, sizeof(temp),NULL);
   return temp;
}

struct Item
{
   DWORD pAddress;
   DWORD dwClassId;
   DWORD dwUnitId;
};

typedef std::vector<Item> ItemList;

ItemList ItemsOnGround() {
   DWORD Unit = 0; //UnitAny * Unit;
   ItemList ret;
   Item cur_item;
   //This for() loop iterates through all room2's visible
   for(DWORD ptRoomOther = pread(pRoom2First + 
                  pread(pLevel +
                  pread(pRoom2 +
                  pread(pRoom1 + 
                  pread(pPath +
                  pread(povUnit)))))); //Room2* ptRoomOther = Unit->pPath->pRoom1->pRoom2->pLevel->pRoom2First
      ptRoomOther;
      ptRoomOther = pread(ptRoomOther + pRoom2Next)) //ptRoomOther = ptRoomOther->pRoom2Next
   {
      //This for() loop iterates through all units in current room2
      for(Unit = pread(pUnitFirst + pread(pRRoom1 + ptRoomOther));
         Unit;
         Unit = pread(Unit + 0xE8)) // Unit = Unit->pListNext 
      {
         if(pread(Unit) == UNIT_ITEM) // if(unit->dwType == UNIT_ITEM)
         {
            //Current unit is an item. store some information about it in the return array
            cur_item.dwClassId = pread(Unit + 0x04);
            cur_item.pAddress = Unit;
            cur_item.dwUnitId = pread(Unit + 0x0C);
            ret.push_back(cur_item);
         }
      }
   }
   return ret;
}

You can find original code for this in the library i posted here:
viewtopic.php?f=182&t=485262
specifically, you want to go to \libs\common\units.au3
constants for the code i posted can be found in \libs\autumn\au.vars.au3

Good luck

Vampirewolve · **Joined:** Tue Mar 01, 2005 8:31 pm

Look at the example code and the structs from d2bs.
Also have a look at the constants header.

lol I forgot the room part :facepalm:

Code: Select all

for (LPROOM1 pRoom = *p_D2CLIENT_PlayerUnit->pAct->pRoom1; pRoom; pRoom = pRoom->pRoomNext)
{

    for(UnitAny* pUnit = pRoom->pUnitFirst;pUnit;pUnit = pUnit->pListNext)
            {
               if(pUnit->dwType ==UNIT_TYPE_ITEM)
               if(pUnit->dwMode == 3 || pUnit->dwMode == 5)
               {
                                        //Do whatever you want
               }                                 
                                 
             }
}

SmokinJoe1 · **Joined:** Tue Apr 29, 2008 5:10 am

you can also refer here viewtopic.php?p=2493606#2493606 for information handling item packets, vampire has given you exactly what you need to do to get started though. one more thing you can refer to contants.h file, in any of the public sources available here for more item stuff regarding location/positioning/item type etc

Kira29 · **Joined:** Sun Apr 01, 2012 4:49 pm

Shaggi, your example code helped me a lot, thanks! This was exactly what I was looking for

Do you know if a ReadProcessMemory() is detected by warden at the moment? From what I googled I think it is not, but this informations seems to be very old..

Kira

EDIT: Oh and I can't find what "povRoom" is, would you tell me?

Shaggi · **Joined:** Mon Jul 13, 2009 5:13 pm **Location:** Denmark

Kira29 » Tue Apr 03, 2012 5:03 pm wrote:

Shaggi, your example code helped me a lot, thanks! This was exactly what I was looking for

Do you know if a ReadProcessMemory() is detected by warden at the moment? From what I googled I think it is not, but this informations seems to be very old..

Kira

EDIT: Oh and I can't find what "povRoom" is, would you tell me?

No problem

It isn't, and you probably shouldn't worry about it..

Do you mean povUnit? that should be the same as p_D2CLIENT_PlayerUnit + D2CLIENT_OFFSET:

Code: Select all

Global Const $PlayerUnit = 0x6FBCD050

Blizzhackers

ReadProcessMemory - Items on Ground

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