1 files changed, 114 insertions, 0 deletions
diff --git a/src/game-server/buysell.cpp b/src/game-server/buysell.cpp
new file mode 100644
index 00000000..e73141df
--- /dev/null
+++ b/src/game-server/buysell.cpp
@@ -0,0 +1,114 @@
+/*
+ *  The Mana World Server
+ *  Copyright 2007 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World 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 World 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 World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  $Id$
+ */
+
+#include <algorithm>
+
+#include "game-server/buysell.hpp"
+
+#include "defines.h"
+#include "game-server/character.hpp"
+#include "game-server/gamehandler.hpp"
+#include "game-server/inventory.hpp"
+#include "net/messageout.hpp"
+
+BuySell::BuySell(Character *c, bool sell):
+    mChar(c), mSell(sell)
+{
+    c->setBuySell(this);
+}
+
+BuySell::~BuySell()
+{
+    mChar->cancelTransaction();
+}
+
+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(MovingObject *obj)
+{
+    if (mItems.empty())
+    {
+        cancel();
+        return;
+    }
+
+    MessageOut msg(mSell ? GPMSG_NPC_SELL : GPMSG_NPC_BUY);
+    msg.writeShort(obj->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);
+    int money = mChar->getMoney();
+    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);
+            money += amount * i->cost;
+        }
+        else
+        {
+            amount = std::min(amount, money / i->cost);
+            amount -= inv.insert(id, amount);
+            money -= amount * i->cost;
+        }
+        if (i->amount)
+        {
+            i->amount -= amount;
+            if (!i->amount)
+            {
+                mItems.erase(i);
+            }
+        }
+        mChar->setMoney(money);
+        return;
+    }
+}