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/*
* The Mana Server
* Copyright (C) 2007 The Mana World Development Team
*
* This file is part of The Mana Server.
*
* The Mana Server 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.
*
* The Mana Server 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 The Mana Server. If not, see <http://www.gnu.org/licenses/>.
*/
#include "game-server/buysell.hpp"
#include "game-server/character.hpp"
#include "game-server/gamehandler.hpp"
#include "game-server/inventory.hpp"
#include "net/messageout.hpp"
#include <algorithm>
BuySell::BuySell(Character *c, bool sell):
mChar(c), mSell(sell)
{
c->setBuySell(this);
}
BuySell::~BuySell()
{
mChar->setBuySell(NULL);
}
void BuySell::cancel()
{
delete this;
}
void BuySell::registerItem(int id, int amount, int cost)
{
if (mSell)
{
int nb = Inventory(mChar).count(id);
if (nb == 0)
return;
if (!amount || nb < amount)
amount = nb;
}
TradedItem it = { id, amount, cost };
mItems.push_back(it);
}
void BuySell::start(Actor *actor)
{
if (mItems.empty())
{
cancel();
return;
}
MessageOut msg(mSell ? GPMSG_NPC_SELL : GPMSG_NPC_BUY);
msg.writeShort(actor->getPublicID());
for (TradedItems::const_iterator i = mItems.begin(),
i_end = mItems.end(); i != i_end; ++i)
{
msg.writeShort(i->itemId);
msg.writeShort(i->amount);
msg.writeShort(i->cost);
}
mChar->getClient()->send(msg);
}
void BuySell::perform(int id, int amount)
{
Inventory inv(mChar);
for (TradedItems::iterator i = mItems.begin(),
i_end = mItems.end(); i != i_end; ++i)
{
if (i->itemId != id) continue;
if (i->amount && i->amount <= amount) amount = i->amount;
if (mSell)
{
amount -= inv.remove(id, amount);
inv.changeMoney(amount * i->cost);
}
else
{
amount = std::min(amount, mChar->getPossessions().money / i->cost);
amount -= inv.insert(id, amount);
inv.changeMoney(-amount * i->cost);
}
if (i->amount)
{
i->amount -= amount;
if (!i->amount)
{
mItems.erase(i);
}
}
return;
}
}
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