l2j-server-game/L2_GameServer/java/net/sf/l2j/gameserver/util/Broadcast.java

/*
 * $Header: Broadcast.java, 18/11/2005 15:33:35 luisantonioa Exp $
 *
 * $Author: luisantonioa $
 * $Date: 18/11/2005 15:33:35 $
 * $Revision: 1 $
 * $Log: Broadcast.java,v $
 * Revision 1  18/11/2005 15:33:35  luisantonioa
 * Added copyright notice
 *
 *
* 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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
 */
package net.sf.l2j.gameserver.util;

import java.util.logging.Logger;

import net.sf.l2j.Config;
import net.sf.l2j.gameserver.model.L2Character;
import net.sf.l2j.gameserver.model.L2World;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.serverpackets.CharInfo;
import net.sf.l2j.gameserver.serverpackets.L2GameServerPacket;
import net.sf.l2j.gameserver.serverpackets.RelationChanged;

/**
 * This class ...
 *
 * @version $Revision: 1.2 $ $Date: 2004/06/27 08:12:59 $
 */

public final class Broadcast
{
    private static Logger _log = Logger.getLogger(Broadcast.class.getName());

    /**
     * Send a packet to all L2PcInstance in the _KnownPlayers of the L2Character that have the Character targetted.<BR><BR>
     *
     * <B><U> Concept</U> :</B><BR>
     * L2PcInstance in the detection area of the L2Character are identified in <B>_knownPlayers</B>.<BR>
     * In order to inform other players of state modification on the L2Character, server just need to go through _knownPlayers to send Server->Client Packet<BR><BR>
     *
     * <FONT COLOR=#FF0000><B> <U>Caution</U> : This method DOESN'T SEND Server->Client packet to this L2Character (to do this use method toSelfAndKnownPlayers)</B></FONT><BR><BR>
     *
     */
    public static void toPlayersTargettingMyself(L2Character character, L2GameServerPacket mov)
    {
        if (Config.DEBUG) _log.fine("players to notify:" + character.getKnownList().getKnownPlayers().size() + " packet:"+mov.getType());

        for (L2PcInstance player : character.getKnownList().getKnownPlayers().values())
        {
            if (player == null || player.getTarget() != character)
                continue;

            player.sendPacket(mov);
        }
    }

    /**
     * Send a packet to all L2PcInstance in the _KnownPlayers of the L2Character.<BR><BR>
     *
     * <B><U> Concept</U> :</B><BR>
     * L2PcInstance in the detection area of the L2Character are identified in <B>_knownPlayers</B>.<BR>
     * In order to inform other players of state modification on the L2Character, server just need to go through _knownPlayers to send Server->Client Packet<BR><BR>
     *
     * <FONT COLOR=#FF0000><B> <U>Caution</U> : This method DOESN'T SEND Server->Client packet to this L2Character (to do this use method toSelfAndKnownPlayers)</B></FONT><BR><BR>
     *
     */
    public static void toKnownPlayers(L2Character character, L2GameServerPacket mov)
    {
        if (Config.DEBUG) _log.fine("players to notify:" + character.getKnownList().getKnownPlayers().size() + " packet:"+mov.getType());

        for (L2PcInstance player : character.getKnownList().getKnownPlayers().values())
        {
           try
           {
        	   player.sendPacket(mov);
        	   if (mov instanceof CharInfo && character instanceof L2PcInstance)
        	   {
        		   int relation = ((L2PcInstance)character).getRelation(player);
        		   if (character.getKnownList().getKnownRelations().get(player.getObjectId()) != null && character.getKnownList().getKnownRelations().get(player.getObjectId()) != relation)
        			   player.sendPacket(new RelationChanged((L2PcInstance)character, relation, player.isAutoAttackable(character)));
        	   }
           }
           catch (NullPointerException e) { }
        }
    }

    /**
     * Send a packet to all L2PcInstance in the _KnownPlayers (in the specified radius) of the L2Character.<BR><BR>
     *
     * <B><U> Concept</U> :</B><BR>
     * L2PcInstance in the detection area of the L2Character are identified in <B>_knownPlayers</B>.<BR>
     * In order to inform other players of state modification on the L2Character, server just needs to go through _knownPlayers to send Server->Client Packet
     * and check the distance between the targets.<BR><BR>
     *
     * <FONT COLOR=#FF0000><B> <U>Caution</U> : This method DOESN'T SEND Server->Client packet to this L2Character (to do this use method toSelfAndKnownPlayers)</B></FONT><BR><BR>
     *
     */
    public static void toKnownPlayersInRadius(L2Character character, L2GameServerPacket mov, int radius)
    {
    	if (radius < 0)
    		radius = 1500;

    	for (L2PcInstance player : character.getKnownList().getKnownPlayers().values())
        {
            if (player == null)
                continue;

            if (character.isInsideRadius(player, radius, false, false))
    			player.sendPacket(mov);
        }
    }

    /**
     * Send a packet to all L2PcInstance in the _KnownPlayers of the L2Character and to the specified character.<BR><BR>
     *
     * <B><U> Concept</U> :</B><BR>
     * L2PcInstance in the detection area of the L2Character are identified in <B>_knownPlayers</B>.<BR>
     * In order to inform other players of state modification on the L2Character, server just need to go through _knownPlayers to send Server->Client Packet<BR><BR>
     *
     */
    public static void toSelfAndKnownPlayers(L2Character character, L2GameServerPacket mov)
    {
    	if (character instanceof L2PcInstance)
    	{
    		character.sendPacket(mov);
    	}

        toKnownPlayers(character, mov);
    }

    // To improve performance we are comparing values of radius^2 instead of calculating sqrt all the time
    public static void toSelfAndKnownPlayersInRadius(L2Character character, L2GameServerPacket mov, long radiusSq)
    {
       if (radiusSq < 0) radiusSq = 360000;

       if (character instanceof L2PcInstance) character.sendPacket(mov);

       for (L2PcInstance player : character.getKnownList().getKnownPlayers().values())
       {
          if (player != null && character.getDistanceSq(player) <= radiusSq) player.sendPacket(mov);
       }
    }

    /**
     * Send a packet to all L2PcInstance present in the world.<BR><BR>
     *
     * <B><U> Concept</U> :</B><BR>
     * In order to inform other players of state modification on the L2Character, server just need to go through _allPlayers to send Server->Client Packet<BR><BR>
     *
     * <FONT COLOR=#FF0000><B> <U>Caution</U> : This method DOESN'T SEND Server->Client packet to this L2Character (to do this use method toSelfAndKnownPlayers)</B></FONT><BR><BR>
     *
     */
    public static void toAllOnlinePlayers(L2GameServerPacket mov)
    {
        if (Config.DEBUG) _log.fine("Players to notify: " + L2World.getInstance().getAllPlayersCount() + " (with packet " + mov.getType() + ")");

        for (L2PcInstance onlinePlayer : L2World.getInstance().getAllPlayers())
        {
            if (onlinePlayer == null)
                continue;

            onlinePlayer.sendPacket(mov);
        }
    }
}