001    /**
002     * Jetrix TetriNET Server
003     * Copyright (C) 2001-2003  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.filter;
021    
022    import static net.jetrix.GameState.*;
023    
024    import java.util.*;
025    
026    import net.jetrix.*;
027    import net.jetrix.commands.StartCommand;
028    import net.jetrix.messages.channel.*;
029    
030    /**
031     * Starts the game automatically once everyone said "go".
032     *
033     * @author Emmanuel Bourg
034     * @version $Revision: 798 $, $Date: 2009-02-18 16:24:28 +0100 (Wed, 18 Feb 2009) $
035     */
036    public class StartFilter extends GenericFilter
037    {
038        private long timestamp[];
039        private int delay = 10000;
040        private int countdown = 0;
041    
042        public void init()
043        {
044            // reading parameters
045            delay = config.getInt("delay", delay);
046            countdown = config.getInt("countdown", countdown);
047    
048            timestamp = new long[6];
049        }
050    
051        public void onMessage(PlineMessage m, List<Message> out)
052        {
053            int slot = m.getSlot();
054            String text = m.getText();
055    
056            // forward the message
057            out.add(m);
058    
059            // do not check server messages
060            if (slot == 0)
061            {
062                return;
063            }
064    
065            // can't start if the game isn't stopped
066            if (getChannel().getGameState() != STOPPED)
067            {
068                return;
069            }
070    
071            // check if the text starts with "go"
072            if (text != null && text.toLowerCase().trim().startsWith("go"))
073            {
074                // update the timestamp
075                long now = System.currentTimeMillis();
076                timestamp[slot - 1] = now;
077    
078                // check if everyone said "go" in the given delay
079                // AFK players shouldn't be checked
080                boolean doStart = true;
081                int i = 0;
082                while (i < 6 && doStart)
083                {
084                    Client player = getChannel().getClient(i + 1);
085                    doStart = (player == null) || (player != null && (now - timestamp[i]) <= delay);
086                    i = i + 1;
087                }
088    
089                if (doStart)
090                {
091                    Arrays.fill(timestamp, 0);
092    
093                    if (countdown == 0)
094                    {
095                        StartGameMessage startMessage = new StartGameMessage();
096                        out.add(startMessage);
097                    }
098                    else
099                    {
100                        (new StartCommand.CountDown(getChannel(), countdown)).start();
101                    }
102                }
103            }
104        }
105    
106        public String getName()
107        {
108            return "Start Filter";
109        }
110    
111        public String getDescription()
112        {
113            return "Starts the game automatically once everyone said 'go'.";
114        }
115    
116        public String getVersion()
117        {
118            return "1.1";
119        }
120    
121        public String getAuthor()
122        {
123            return "Emmanuel Bourg";
124        }
125    
126    }