barterhandler.cpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2011-2019 The ManaPlus Developers
 * Copyright (C) 2019-2021 Andrei Karas
 *
 * This file is part of The ManaPlus Client.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "net/eathena/barterhandler.h"
 
#include "net/eathena/barterrecv.h"
#include "net/eathena/messageout.h"
#include "net/eathena/protocolout.h"
 
#include "utils/foreach.h"
 
#include "resources/item/shopitem.h"
 
#include "debug.h"
 
extern int packetVersionMain;
extern int packetVersionRe;
extern int packetVersionZero;
extern int itemIdLen;
 
namespace EAthena
{
 
BarterHandler::BarterHandler() :
 Net::BarterHandler()
{
 barterHandler = this;
 BarterRecv::mBuyDialog = nullptr;
}
 
BarterHandler::~BarterHandler()
{
 barterHandler = nullptr;
}
 
void BarterHandler::close() const
{
 if (packetVersionMain < 20190116 &&
 packetVersionRe < 20190116 &&
 packetVersionZero < 20181226)
 {
 return;
 }
 
 createOutPacket(CMSG_NPC_BARTER_CLOSE);
}
 
void BarterHandler::buyItems(const STD_VECTOR<ShopItem*> &items) const
{
 if (packetVersionMain < 20190116 &&
 packetVersionRe < 20190116 &&
 packetVersionZero < 20181226)
 {
 return;
 }
 int cnt = 0;
 const int pairSize = 10 + itemIdLen;
 
 FOR_EACH (STD_VECTOR<ShopItem*>::const_iterator, it, items)
 {
 const ShopItem *const item = *it;
 const int usedQuantity = item->getUsedQuantity();
 const ItemTypeT type = item->getType();
 if (usedQuantity == 0)
 continue;
 if (type == ItemType::Weapon ||
 type == ItemType::Armor ||
 type == ItemType::PetEgg ||
 type == ItemType::PetArmor)
 {
 cnt += item->getUsedQuantity();
 }
 else
 {
 cnt ++;
 }
 }
 
 if (cnt > 100)
 return;
 
 createOutPacket(CMSG_NPC_MARKET_BUY);
 outMsg.writeInt16(CAST_S16(4 + pairSize * cnt), "len");
 FOR_EACH (STD_VECTOR<ShopItem*>::const_iterator, it, items)
 {
 ShopItem *const item = *it;
 const int usedQuantity = item->getUsedQuantity();
 if (usedQuantity == 0)
 continue;
 item->increaseQuantity(usedQuantity);
 item->increaseUsedQuantity(-usedQuantity);
 item->update();
 const ItemTypeT type = item->getType();
 if (type == ItemType::Weapon ||
 type == ItemType::Armor ||
 type == ItemType::PetEgg ||
 type == ItemType::PetArmor)
 {
 for (int f = 0; f < usedQuantity; f ++)
 {
 outMsg.writeItemId(item->getId(),
 "item id");
 outMsg.writeInt32(CAST_S16(1), "amount");
 // +++ need use player inventory index
 outMsg.writeInt16(0, "inv index");
 outMsg.writeInt32(item->getCurrentInvIndex(),
 "inv index");
 }
 }
 else
 {
 outMsg.writeItemId(item->getId(),
 "item id");
 outMsg.writeInt32(CAST_S16(usedQuantity), "amount");
 // +++ need use player inventory index
 outMsg.writeInt16(0, "inv index");
 outMsg.writeInt32(item->getCurrentInvIndex(),
 "inv index");
 }
 }
}
 
} // namespace EAthena