Sistem Ekleme Videoları #2 Private Shop Search

void CShopManager::ShopSearchBuy(LPCHARACTER ch, const TPacketCGPrivateShopSearchBuyItem* p)
{
    if (ch == NULL || ch->GetDesc() == NULL || p == NULL)
        return;

    if (ch->GetExchange() || ch->GetMyShop() || ch->GetShopOwner() || ch->IsOpenSafebox() || ch->IsCubeOpen())
    {
        ch->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("SHOP_SEARCH_CLOSE_TABS"));
        return;
    }

    LPCHARACTER ShopCH = CHARACTER_MANAGER::instance().FindByPID(p->dwShopPID);
    if (ShopCH == NULL)
    {
        ch->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("SHOP_SEARCH_NO_SHOP"));
        return;
    }

    if (ch == ShopCH) // what?
        return;

    CShop* pkShop = ShopCH->GetMyShop();
    if (pkShop == NULL || pkShop->IsPCShop() == false)
    {
        ch->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("SHOP_SEARCH_NO_SHOP"));
        return;
    }

    const BYTE bState = ch->GetPrivateShopSearchState();
    switch (bState)
    {
    case SHOP_SEARCH_LOOKING:
    {
        if (ch->CountSpecifyItem(PRIVATE_SHOP_SEARCH_LOOKING_GLASS) == 0)
        {
            const TItemTable* GlassTable = ITEM_MANAGER::instance().GetTable(PRIVATE_SHOP_SEARCH_LOOKING_GLASS);
            if (GlassTable)
                ch->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("SHOP_SEARCH_WHERE_IS_ITEM"), GlassTable->szLocaleName);
            return;
        }
        if (ch->GetMapIndex() != ShopCH->GetMapIndex())
        {
            ch->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("SHOP_SEARCH_SAMEMAP_ERR"));
            return;
        }

        const DWORD dwSellerVID(ShopCH->GetVID());
        if (CTargetManager::instance().GetTargetInfo(ch->GetPlayerID(), TARGET_TYPE_VID_SHOP_SEARCH, dwSellerVID))
            CTargetManager::instance().DeleteTarget(ch->GetPlayerID(), SHOP_SEARCH_INDEX, "__SHOPSEARCH_TARGET__");

        CTargetManager::Instance().CreateTarget(ch->GetPlayerID(), SHOP_SEARCH_INDEX, "__SHOPSEARCH_TARGET__", TARGET_TYPE_VID_SHOP_SEARCH, dwSellerVID, 0, ch->GetMapIndex(), "Shop Search", 1);

        if (CTargetManager::instance().GetTargetInfo(ch->GetPlayerID(), TARGET_TYPE_VID_SHOP_SEARCH, dwSellerVID))
            ch->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("SHOP_SEARCH_SUCCESS_TARGET"));
        break;
    }

    case SHOP_SEARCH_TRADING:
    {
        if (ch->CountSpecifyItem(PRIVATE_SHOP_SEARCH_TRADING_GLASS) == 0)
        {
            const TItemTable* GlassTable = ITEM_MANAGER::instance().GetTable(PRIVATE_SHOP_SEARCH_TRADING_GLASS);
            if (GlassTable)
                ch->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("SHOP_SEARCH_WHERE_IS_ITEM"), GlassTable->szLocaleName);
            return;
        }

        ch->SetMyShopTime();
        int ret = pkShop->Buy(ch, p->bPos, true);

        if (SHOP_SUBHEADER_GC_OK != ret)
        {
            TPacketGCShop pack;
            pack.header = HEADER_GC_SHOP;
            pack.subheader = static_cast<BYTE>(ret);
            pack.size = sizeof(TPacketGCShop);
            ch->GetDesc()->Packet(&pack, sizeof(pack));
        }
        else
            ch->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("SHOP_SEARCH_OK"));

        break;
    }
    default:
        sys_err("ShopSearchBuy ch(%s) wrong state(%d)", ch->GetName(), bState);
        break;
    }
}