mapleshop.java.svn-base

冒险岛私服Java版服务端(Odinms)源代码。学习JAVA开发的朋友

/*
	This file is part of the OdinMS Maple Story Server
    Copyright (C) 2008 Patrick Huy <[e-mail]> 
                       Matthias Butz <[e-mail]>
                       Jan Christian Meyer <[e-mail]>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License version 3
    as published by the Free Software Foundation. You may not use, modify
    or distribute this program under any other version of the
    GNU Affero General Public License.

    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 Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/*
 * MapleShop.java
 *
 * Created on 28. November 2007, 17:35
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package net.sf.odinms.server;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;

import net.sf.odinms.client.IItem;
import net.sf.odinms.client.Item;
import net.sf.odinms.client.MapleClient;
import net.sf.odinms.client.MapleInventoryType;
import net.sf.odinms.database.DatabaseConnection;
import net.sf.odinms.net.PacketProcessor;
import net.sf.odinms.tools.MaplePacketCreator;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 * @author Matze
 */
public class MapleShop {
	private static final Set<Integer> rechargeableItems = new LinkedHashSet<Integer>();
	private int id;
	private int npcId;
	private List<MapleShopItem> items;
	
	private static Logger log = LoggerFactory.getLogger(PacketProcessor.class);
	
	static {
		for (int i = 2070000; i <= 2070016; i++) {
			rechargeableItems.add(i);
		}
		rechargeableItems.remove(2070014); // doesn't exist
	}
	
	/** Creates a new instance of MapleShop */
	private MapleShop(int id, int npcId) {
		this.id = id;
		this.npcId = npcId;
		items = new LinkedList<MapleShopItem>();
	}
	
	public void addItem(MapleShopItem item) {
		items.add(item);
	}
	
	public void sendShop(MapleClient c) {
		c.getPlayer().setShop(this);
		c.getSession().write(MaplePacketCreator.getNPCShop(getNpcId(), items));
	}
	
	public void buy(MapleClient c, int itemId, short quantity) {
		if (quantity <= 0) {
			AutobanManager.getInstance().addPoints(c, 1000, 0, "Buying " + quantity + " " + itemId);
			return;
		}
		MapleShopItem item = findById(itemId);
		if (item != null && item.getPrice() > 0) {
			if (c.getPlayer().getMeso() > item.getPrice() * quantity) {
				StringBuilder logInfo = new StringBuilder(c.getPlayer().getName());
				logInfo.append(" bought ");
				logInfo.append(quantity);
				logInfo.append(" for ");
				logInfo.append(item.getPrice() * quantity);
				logInfo.append(" from shop ");
				logInfo.append(id);
				MapleInventoryManipulator.addById(c, itemId, quantity, logInfo.toString());
				c.getPlayer().gainMeso(-(item.getPrice() * quantity), false);
				c.getSession().write(MaplePacketCreator.confirmShopTransaction((byte) 0));
			}
		}
	}
	
	public void sell(MapleClient c, MapleInventoryType type, byte slot, short quantity) {
		if (quantity == 0xFFFF || quantity == 0) quantity = 1;
		MapleItemInformationProvider ii = MapleItemInformationProvider.getInstance();
		IItem item = c.getPlayer().getInventory(type).getItem(slot);
		if (ii.isThrowingStar(item.getItemId())) {
			quantity = item.getQuantity();
		}
		if (quantity < 0) {
			AutobanManager.getInstance().addPoints(c, 1000,	0, "Selling " + quantity + " " +
				item.getItemId() + " (" + type.name() + "/" + slot + ")");
			return;
		}
		short iQuant = item.getQuantity();
		if (iQuant == 0xFFFF) iQuant = 1;
		if (quantity <= iQuant && iQuant > 0) {
			MapleInventoryManipulator.removeFromSlot(c, type, slot, quantity,false);
			double price;
			if (ii.isThrowingStar(item.getItemId())) {
				price = ii.getWholePrice(item.getItemId()) / (double) ii.getSlotMax(item.getItemId());
			} else {
				price = ii.getPrice(item.getItemId());
			}
			int recvMesos = (int) Math.max(Math.ceil(price * quantity), 0);
			if (price != -1 && recvMesos > 0) {
				c.getPlayer().gainMeso(recvMesos, true);
			}
			c.getSession().write(MaplePacketCreator.confirmShopTransaction((byte) 0x8));
		}
	}
	
	public void recharge(MapleClient c, byte slot) {
		MapleItemInformationProvider ii = MapleItemInformationProvider.getInstance();
		IItem item = c.getPlayer().getInventory(MapleInventoryType.USE).getItem(slot);
		if (item == null || !ii.isThrowingStar(item.getItemId())) {
			if (item != null && !ii.isThrowingStar(item.getItemId())) {
				log.warn(c.getPlayer().getName() + " is trying to recharge " + item.getItemId());
			}
			return;
		}
		short slotMax = ii.getSlotMax(item.getItemId());
		if (item.getQuantity() < 0) {
			log.warn(c.getPlayer().getName() + " is trying to recharge " + item.getItemId() + " with quantity " + item.getQuantity());
		}
		if (item.getQuantity() < slotMax) {
			// calc price ;_;
			int price = (int) Math.round(ii.getPrice(item.getItemId()) * (slotMax - item.getQuantity()));
			if (c.getPlayer().getMeso() >= price) {
				item.setQuantity(slotMax);
				c.getSession().write(MaplePacketCreator.updateInventorySlot(MapleInventoryType.USE, (Item) item));
				c.getPlayer().gainMeso(-price, true, true, true);
				c.getSession().write(MaplePacketCreator.confirmShopTransaction((byte) 0x8));
			}
		}
	}
	
	protected MapleShopItem findById(int itemId) {
		for (MapleShopItem item : items) {
			if (item.getItemId() == itemId)
				return item;
		}
		return null;
	}
	
	public static MapleShop createFromDB(int id) {
		MapleShop ret = null;
		MapleItemInformationProvider ii = MapleItemInformationProvider.getInstance();
		int shopId;
		try {
			Connection con = DatabaseConnection.getConnection();
			PreparedStatement ps = con.prepareStatement("SELECT * FROM shops WHERE shopid = ? OR npcid = ?");
			ps.setInt(1, id);
			ps.setInt(2, id);
			ResultSet rs = ps.executeQuery();			
			if (rs.next()) {
				shopId = rs.getInt("shopid");
				ret = new MapleShop(shopId, rs.getInt("npcid"));
				rs.close();
				ps.close();
			} else {
				rs.close();
				ps.close();
				return null;
			}
			ps = con.prepareStatement("SELECT * FROM " +
				"shopitems WHERE shopid = ? ORDER BY position ASC");
			ps.setInt(1, shopId);
			rs = ps.executeQuery();
			List<Integer> recharges = new ArrayList<Integer>(rechargeableItems);
			while (rs.next()) {
				if (ii.isThrowingStar(rs.getInt("itemid"))) {
					MapleShopItem starItem = new MapleShopItem((short) 1, rs.getInt("itemid"), rs.getInt("price"));
					ret.addItem(starItem);
					if (rechargeableItems.contains(starItem.getItemId())) {
						recharges.remove(Integer.valueOf(starItem.getItemId()));
					}
				} else {
					ret.addItem(new MapleShopItem((short) 1000, rs.getInt("itemid"), rs.getInt("price")));
				}
			}
			for (Integer recharge : recharges) {
				ret.addItem(new MapleShopItem((short) 1000, recharge.intValue(), 0));
			}
			rs.close();
			ps.close();
		} catch (SQLException e) {
			log.error("Could not load shop", e);
		}
			
		return ret;
	}

	public int getNpcId() {
		return npcId;
	}

	public int getId() {
		return id;
	}
	
}