Smart Enchanted Item Shop

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CORE:

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/* 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, or (at your option)
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package com.l2jfrozen.gameserver.model.actor.instance;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.StringTokenizer;

import com.l2jfrozen.gameserver.ai.CtrlIntention;
import com.l2jfrozen.gameserver.datatables.sql.ItemTable;
import com.l2jfrozen.gameserver.network.SystemMessageId;
import com.l2jfrozen.gameserver.network.serverpackets.ActionFailed;
import com.l2jfrozen.gameserver.network.serverpackets.CharInfo;
import com.l2jfrozen.gameserver.network.serverpackets.InventoryUpdate;
import com.l2jfrozen.gameserver.network.serverpackets.MyTargetSelected;
import com.l2jfrozen.gameserver.network.serverpackets.NpcHtmlMessage;
import com.l2jfrozen.gameserver.network.serverpackets.SystemMessage;
import com.l2jfrozen.gameserver.network.serverpackets.UserInfo;
import com.l2jfrozen.gameserver.network.serverpackets.ValidateLocation;
import com.l2jfrozen.gameserver.model.actor.instance.L2PcInstance;
import com.l2jfrozen.gameserver.templates.L2NpcTemplate;
import com.l2jfrozen.util.CloseUtil;
import com.l2jfrozen.util.database.L2DatabaseFactory;

import javolution.text.TextBuilder;

/**
 *
 * @author Elfocrash
 *
 */

public class L2SmartMultisellInstance extends L2FolkInstance
{
  public L2SmartMultisellInstance(int objectId, L2NpcTemplate template)
  {
    super(objectId, template);
  }

  @Override
public void onBypassFeedback(L2PcInstance player, String command)
  {
         if(player == null)
         {
            return;
         }
         
         if(command.startsWith("buyItem "))
         {
        String itemId = null;
        StringTokenizer st = new StringTokenizer(command, " ");
       
        while (st.hasMoreTokens())
        {
        itemId = st.nextToken();
        }
       
        int id = Integer.parseInt(itemId);
       
        if(player.getInventory().getItemByItemId(getItemCostId(id)).getCount() >= getItemCostCount(id))
        {
        player.getInventory().destroyItemByItemId("delete", getItemCostId(id), getItemCostCount(id), player, null);
       
    L2ItemInstance item = null;      
    item = player.getInventory().addItem("Elfo", getItemId(id), 1, null, null);
    item.setEnchantLevel(getItemEnchant(id));
   
// send packets
InventoryUpdate iu = new InventoryUpdate();
iu.addItem(item);
player.sendPacket(iu);
player.broadcastPacket(new CharInfo(player));
player.sendPacket(new UserInfo(player));

SystemMessage sm = new SystemMessage(SystemMessageId.YOU_PICKED_UP_S1_S2);
sm.addItemName(item.getItemId());
sm.addNumber(1);
player.sendPacket(sm);
iu = null;
        }
        else
        {
        player.sendMessage("You don't have enough items in order to buy this one");
        return;
        }
         }
       
  }

  @Override
public void onAction(L2PcInstance player)
  {
    if (!canTarget(player)) {
      return;
    }

    if (this != player.getTarget())
    {
      player.setTarget(this);

      player.sendPacket(new MyTargetSelected(getObjectId(), 0));

      player.sendPacket(new ValidateLocation(this));
    }
    else if (!canInteract(player))
    {
      player.getAI().setIntention(CtrlIntention.AI_INTENTION_INTERACT, this);
    }
    else
    {
    showHtmlWindow(player);
    }

    player.sendPacket(new ActionFailed());
  }

  private void showHtmlWindow(L2PcInstance activeChar)
  {
    NpcHtmlMessage nhm = new NpcHtmlMessage(5);
    TextBuilder tb = new TextBuilder("");
   
    tb.append("<html><head><title>Smart Shop</title></head><body>");
    tb.append("<center>");
    tb.append("<table width=\"250\" cellpadding=\"5\" bgcolor=\"000000\">");
    tb.append("<tr>");
    tb.append("<td width=\"45\" valign=\"top\" align=\"center\"><img src=\"L2ui_ch3.menubutton4\" width=\"38\" height=\"38\"></td>");
    tb.append("<td valign=\"top\"><font color=\"FF6600\">Smart Shop</font>");
    tb.append("<br1><font color=\"00FF00\">"+activeChar.getName()+"</font>, Here you can buy Enchanted Gear.</td>");
    tb.append("</tr>");
    tb.append("</table>");
    tb.append("</center>");
    tb.append("<center>");
   
    for(int i = 1; i<= getRowsCount(); i++)
    tb.append("<br><a action=\"bypass -h npc_" + getObjectId() + "_buyItem " + i + "\">Item name: " + ItemTable.getInstance().getTemplate(getItemId(i)).getName() + " Enchant: +"+ getItemEnchant(i) + " Cost: " + getItemCostCount(i) + " " + ItemTable.getInstance().getTemplate(getItemCostId(i)).getName() + "</a>");
   
    tb.append("</center>");
    tb.append("<center>");
    tb.append("<img src=\"l2ui_ch3.herotower_deco\" width=256 height=32 align=center>");
    tb.append("<font color=\"FF6600\">By Elfocrash</font>");
    tb.append("</center>");
    tb.append("</body></html>");

    nhm.setHtml(tb.toString());
    activeChar.sendPacket(nhm);

    activeChar.sendPacket(new ActionFailed());
  }
 
  private int getRowsCount()
  {
      int rows = 0;
      Connection con = null;
      try
      {
              con = L2DatabaseFactory.getInstance().getConnection();
                 
              PreparedStatement statement = con.prepareStatement("SELECT * FROM smart_shop");
             
              ResultSet rset = statement.executeQuery();
              while (rset.next())
              {
                  rows++;
              }
  rset.close();
  statement.close();
                 
      }
catch(Exception e)
{
e.printStackTrace();
}finally{
CloseUtil.close(con);
con = null;
}
      return rows;
     
  }
 
  private int getItemId(int itemId)
  {
      int itemIdd = 0;
      Connection con = null;
      try
      {
              con = L2DatabaseFactory.getInstance().getConnection();
                 
              PreparedStatement statement = con.prepareStatement("SELECT item_id FROM smart_shop WHERE id=?");
              statement.setInt(1, itemId);
             
              ResultSet rset = statement.executeQuery();
              while (rset.next())
              {
              itemIdd = rset.getInt("item_id");
              }
    rset.close();
      statement.close();
                 
      }
catch(Exception e)
{
e.printStackTrace();
}finally{
CloseUtil.close(con);
con = null;
}
      return itemIdd;
     
  }
 
  private int getItemCostId(int costid)
  {
      int costIt = 0;
      Connection con = null;
      try
      {
              con = L2DatabaseFactory.getInstance().getConnection();
                 
              PreparedStatement statement = con.prepareStatement("SELECT cost_item_id FROM smart_shop WHERE id=?");
              statement.setInt(1, costid);
             
              ResultSet rset = statement.executeQuery();
              while (rset.next())
              {
              costIt = rset.getInt("cost_item_id");
              }
    rset.close();
      statement.close();
                 
      }
catch(Exception e)
{
e.printStackTrace();
}finally{
CloseUtil.close(con);
con = null;
}
      return costIt;
     
  }
 
  private int getItemCostCount(int costid)
  {
      int costIt = 0;
      Connection con = null;
      try
      {
              con = L2DatabaseFactory.getInstance().getConnection();
                 
              PreparedStatement statement = con.prepareStatement("SELECT cost_item_count FROM smart_shop WHERE id=?");
              statement.setInt(1, costid);
             
              ResultSet rset = statement.executeQuery();
              while (rset.next())
              {
              costIt = rset.getInt("cost_item_count");
              }
    rset.close();
      statement.close();
                 
      }
catch(Exception e)
{
e.printStackTrace();
}finally{
CloseUtil.close(con);
con = null;
}
      return costIt;
     
  }
 
  private int getItemEnchant(int id)
  {
      int itemEnch = 0;
      Connection con = null;
      PreparedStatement statement = null;
      try
      {
              con = L2DatabaseFactory.getInstance().getConnection();
                 
              statement = con.prepareStatement("SELECT item_enchant FROM smart_shop WHERE id=?");
              statement.setInt(1, id);
             
              ResultSet rset = statement.executeQuery();
              while (rset.next())
              {
              itemEnch = rset.getInt("item_enchant");
              }
    rset.close();
      statement.close();
                 
      }
catch(Exception e)
{
e.printStackTrace();
}finally{
CloseUtil.close(con);
con = null;
}
      return itemEnch;
     
  }

}

SQL:

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/*
Navicat MySQL Data Transfer

Source Server         : localhost
Source Server Version : 50519
Source Host           : localhost:3306
Source Database       : l2jfrozen

Target Server Type    : MYSQL
Target Server Version : 50519
File Encoding         : 65001

Date: 2013-01-17 18:22:51
*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for `smart_shop`
-- ----------------------------
DROP TABLE IF EXISTS `smart_shop`;
CREATE TABLE `smart_shop` (
  `id` int(1) NOT NULL DEFAULT '0',
  `item_id` int(5) DEFAULT NULL,
  `item_enchant` int(5) DEFAULT NULL,
  `cost_item_id` int(5) DEFAULT NULL,
  `cost_item_count` bigint(16) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;