001    /**
002     * Jetrix TetriNET Server
003     * Copyright (C) 2001-2004  Emmanuel Bourg
004     *
005     * This program is free software; you can redistribute it and/or
006     * modify it under the terms of the GNU General Public License
007     * as published by the Free Software Foundation; either version 2
008     * of the License, or (at your option) any later version.
009     *
010     * This program is distributed in the hope that it will be useful,
011     * but WITHOUT ANY WARRANTY; without even the implied warranty of
012     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013     * GNU General Public License for more details.
014     *
015     * You should have received a copy of the GNU General Public License
016     * along with this program; if not, write to the Free Software
017     * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
018     */
019    
020    package net.jetrix.commands;
021    
022    import static java.lang.Math.*;
023    
024    import java.util.*;
025    import net.jetrix.*;
026    import net.jetrix.messages.channel.CommandMessage;
027    import net.jetrix.messages.channel.PlineMessage;
028    
029    /**
030     * Display a random number.
031     *
032     * @author Emmanuel Bourg
033     * @version $Revision: 803 $, $Date: 2009-02-25 22:22:12 +0100 (Wed, 25 Feb 2009) $
034     */
035    public class RandomCommand extends AbstractCommand
036    {
037        private Random random = new Random();
038    
039        public String[] getAliases()
040        {
041            return (new String[] { "random", "roll" });
042        }
043    
044        public String getUsage(Locale locale)
045        {
046            return "/random <min> <max>";
047        }
048    
049        public void execute(CommandMessage m)
050        {
051            Client client = (Client) m.getSource();
052    
053            // get the minimum and maximum values
054            int min = 1;
055            int max = 6;
056    
057            if (m.getParameterCount() >= 2)
058            {
059                int a = m.getIntParameter(0, min);
060                int b = m.getIntParameter(1, max);
061    
062                min = min(a, b);
063                max = max(a, b);
064            }
065            else if (m.getParameterCount() == 1)
066            {
067                max = Math.max(min, m.getIntParameter(0, max));
068            }
069    
070            int result = random.nextInt(abs(max - min) + 1);
071    
072            // display the result
073            PlineMessage response = new PlineMessage();
074            response.setKey("command.random.result", client.getUser().getName(), min, max, (result + min));
075            client.getChannel().send(response);
076        }
077    }