Need help on crafting system

[jeromerz]

The DPSrvr.cpp code goes like this:

 Spoiler

void CDPSrvr::OnCraftingCMD( CAr & ar, DPID dpidCache, DPID dpidUser, LPBYTE lpBuf, u_long uBufSize )
{
CUser* pUser = g_UserMng.GetUser( dpidCache, dpidUser );
	CMover* pMover = (CMover*)pUser;
	if(!IsValidObj(pUser))
		return;
	const int nMaxMaterialCount = 3; // 3
	CItemElem* pCraftingMaterial[nMaxMaterialCount];
	OBJID	objMaterial[3];
	int tmpExtra;
	CraftingItemProduct* pFoundProduct = NULL;
	for(int i = 0;i < 3;i++)
	{
		ar >> dwItem[i];
		ar >> tmpExtra;

		pCraftingMaterial[i] = (CItemElem*)pUser->m_Inventory.GetAtId( dwItem[i] );
		
		if(!pCraftingMaterial[i])
			return;

		pCraftingMaterial[i]->SetExtra(tmpExtra);

		if((unsigned short)pCraftingMaterial[i]->GetExtra() > (unsigned short)pCraftingMaterial[i]->m_nItemNum)
		{
			pCraftingMaterial[i]->SetExtra(0);
			return;
		}
	}


	for(size_t i = 0;i < prj.m_aCraftingItemProducts.size();i++)
	{
		size_t nMatches = 0;
		CraftingItemProduct* pCraftingProduct = &prj.m_aCraftingItemProducts.at(i);
		if(pCraftingProduct)
		{
			for(size_t j = 0;j < pCraftingProduct->dwCraftingItems.size();j++)
			{
				CraftingItem* pCraftingItem = &pCraftingProduct->dwCraftingItems[j];
				if(pCraftingItem)
				{
					for(size_t k = 0;k < nMaxMaterialCount;k++)
					{
						if(pCraftingItem->dwItemID == pCraftingMaterial[k]->GetProp()->dwID &&
							pCraftingItem->dwCount == (DWORD)pCraftingMaterial[k]->GetExtra())
						{
							nMatches++; 
							
							if(nMatches == pCraftingProduct->dwCraftingItems.size() )
							{
								pFoundProduct = pCraftingProduct;
							}
						}

					}
				}
				
			}
			nMatches = 0;
		}
	}

I want to add an item id check on this system to prevent duplication's.

Example:
If the user put's a guardian weapon on the first slot the user is not allowed to put a guard weapon again on the 2nd and 3rd slot.


I tried this code base on the model change function:

	DWORD dwItem1, dwItem2, dwItem3;
	ar >> dwItem1 >> dwItem2 >> dwItem3;
	if( pUser )
	{
		CItemElem *    pItemElem = pUser->m_Inventory.GetAtId( dwItem1 );
		CItemElem *    pItemElem1 = pUser->m_Inventory.GetAtId( dwItem2 );
		CItemElem *    pItemElem2 = pUser->m_Inventory.GetAtId( dwItem3 );

		if(pItemElem->GetProp()->dwID == pItemElem1->GetProp()->dwID == pItemElem2->GetProp()->dwID )
		{
			pUser->AddText("You can not use the same item!");
			return;
		}
	}

But it's not working. >.<

I've been exploring around the source code but no luck i hope you can help me. thanks