Routine for mounting equipment….?

Huor

I need some help on this issue.

I just want to track what equipment is mounted and unmounted on a ship. I figured out in the ServerImpl Routines there is this “ReqEquipment” function with this signature:

void __stdcall ReqEquipment (class EquipDescList const &edl, unsigned int iClientID)

I assume the current equipment that is mounted or unmounted is listed in the EquipDescList address space. However i tried to figure out how i could be able to track back what equipment that is. Without success so far.

Looking through the code there is also a few times the EquipDescList from the Players data taken… e. g.:

  char *szClassPtr;
  memcpy(&szClassPtr, &Players, 4);
  szClassPtr += 0x418 * (iClientID - 1);
  EquipDescList *edlList = (EquipDescList*)szClassPtr + 0x328;

However the address i get there is quite another one - probably all the equipment that is on the ship and not just only one.
Additional to this i found this here:

	char *szClassPtr;
	memcpy(&szClassPtr, &Players, 4);
	szClassPtr += 0x418 * (iClientID - 1);

	EQ_ITEM *eqLst;
	memcpy(&eqLst, szClassPtr + 0x27C, 4);

This lists the equipment also from the Players data. But if i take the address from EquipDescList from the ReqEquipment call and type cast it to EQ_ITEM i don’t get the proper results. So i am asking myself how could i track what item is mounted/unmounted. Or is there another routine that could be used where i have access directly to the ArchID of that item?

Any hints and help would be appreciated. Thanks in advance.

Crazy

What’s wrong with HkEnumCargo?

adoxa

EquipDescList is std::list <equipdesc>(stored at +0x278, for VC6); EQ_ITEM is the “raw” equivalent (where the head pointer is at +0x27C). As it seems you’re using FLHook, just use HkEnumCargo as Crazy suggests, which runs through the list at +0x27C and gives it to you as another std::list (for your compiler). To distinguish between equipment and commodity, use arch_is_combinable (true is commodity, false is equipment). So I guess you want something like:

list <cargo_info>lstCargo;
int iHold;
HkEnumCargo(wscCharname, lstCargo, iHold);
foreach(lstCargo, CARGO_INFO, it)
{
    if (it->bMounted)
    {
        // Equipment is mounted
    }
    else if (!arch_is_combinable(it->bArchID))
    {
        // Equipment is unmounted
    }
    // else it's a commodity (or bat/bot)
}</cargo_info> 
```</equipdesc>

Huor

Thanks so far. HkEnumCargo could be used indeed.
But i wasn’t that accurate in my first post. When i mount/unmount an item to my ship the routine ReqEquipment is called with that EquipDescList reference. I need exactly that item that is currently mount/unmount. And i thought its somewhere in EquipDescList reference contained.

Surely i could run through all items and do what i want to do checking the mount flag in the cargo list. But i thought there is another way. For something this EquipDescList that points me directly to that item i am working on currently

Hence my trials with that typecasting to the EQ_ITEM. I need the archID to compare it with something special tho…
If there are no other ways then HkEnumCargo is the way i need to go then.

But just for interest - the EquipDescList is defined as class, with some subroutines but no member variables. How is it possible to track what exactly is in this EquipDescList then? For the subroutines i need an archId to find the equipment - but i need the other way round (where i have a routine as well - but not with that reference from the ReqEquipment call)…

w0dk4

Huor wrote:

But just for interest - the EquipDescList is defined as class, with some subroutines but no member variables. How is it possible to track what exactly is in this EquipDescList then? For the subroutines i need an archId to find the equipment - but i need the other way round (where i have a routine as well - but not with that reference from the ReqEquipment call)…

From the SDK:

public:

        // std::list <equipdesc>equip; // FIXME: std::list is not compatible with VC9 libs

        EquipDescListItem *pIter;

        EquipDescListItem *pFirst;

        UINT iCount;</equipdesc>

Anyways, IIRC the reqequipment includes all the equipment on a ship rather than only the “changed” equipment, so as Crazy and adoxa said, simply use HkEnumCargo for simplicity after the server call.

Crazy

If you’re sure that there isn’t another function called when mounting/unmounting (haven’t checked) you could simply save a list with mounted and unmounted equip when a player is entering a base.
Compare that list with a new one created when ReqEquipment is called and you should be able to find out which one is missing/new.

Huor

At least thats the first function that my breakpoints interrupt the code from its execution - so i thought its well used as first

If the EquipDescList reference from the function call would point to the item/equipment that is currently in use then it could save needless traversing through the cargo. W0dka pointed out to use the iterators of EquipDescListItem - but the question would be if the item that is currently in use can be retrieved by it wiithout running through all objects.

I will see if i can find something out with these iterators. For now i think traversing the cargo hold is a reasonable way to get what i am looking for - although if its a workaround^^
Thanks so far all that left a hint here.