#include "stdafx.h"
#include "Item.h"
#include "ItemMgr.h"
#include "ItemFactory.h"

using namespace Item;

CItemFactory CItemFactory::ms_this;

CItemFactory::CItemFactory()
:   m_nCurrentUID(0)
{


}

CItemFactory::~CItemFactory()
{


}

CItem* CItemFactory::CreateItem(const ItemInfo& itemInfo)
{
    unsigned long dwFlags = itemInfo.m_DetailData.m_dwFlags;
    
    CItem* lpItem = NULL;

    if(DetailData::EQUIP == (dwFlags & DetailData::EQUIP))
    {
        lpItem = new CEquipment(m_nCurrentUID++, itemInfo);            
    }
    else if(DetailData::USE_ITEM == (dwFlags & DetailData::USE_ITEM))
    {
        lpItem = new CUseItem(m_nCurrentUID++, itemInfo);            
    }
    else
    {
        lpItem = new CItem(m_nCurrentUID++, itemInfo);            
    }

    return lpItem;
}


CItem* CItemFactory::CreateItem(unsigned short usProtoTypeID)
{
    const ItemInfo* lpItemInfo = CItemMgr::GetInstance().GetItemInfo(usProtoTypeID);

    if(NULL != lpItemInfo)
    {        
        return CreateItem(*lpItemInfo);
    }

    return 0;
}


CItem* CItemFactory::CreateItem(const char* lpSerializedItem_In, size_t& nParseLength_InOut)
{
    const ItemData* lpItemData = reinterpret_cast<const ItemData*>(lpSerializedItem_In);
    
    if(NULL != lpItemData)
    {        
        CItem* lpItem = CreateItem(lpItemData->m_usProtoTypeID);

        if(NULL != lpItem)
        {
            if(!lpItem->SerializeIn(lpSerializedItem_In, nParseLength_InOut))
            {
                delete lpItem;
                lpItem = NULL;
            }
        }

        return lpItem;
    }

    return 0;
}