/*
 * 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 silentium.gameserver.model.actor.instance;

import silentium.gameserver.ai.CharacterAI;
import silentium.gameserver.ai.NpcWalkerAI;
import silentium.gameserver.model.L2Skill;
import silentium.gameserver.model.actor.L2Character;
import silentium.gameserver.network.clientpackets.Say2;
import silentium.gameserver.network.serverpackets.NpcSay;
import silentium.gameserver.templates.chars.L2NpcTemplate;
import silentium.gameserver.utils.Broadcast;

/**
 * This class manages some npcs can walk in the city. <br>
 * 
 * @author Rayan RPG, JIV
 */
public class L2NpcWalkerInstance extends L2NpcInstance
{
	public L2NpcWalkerInstance(int objectId, L2NpcTemplate template)
	{
		super(objectId, template);
		setAI(new NpcWalkerAI(new NpcWalkerAIAccessor()));
	}

	/**
	 * AI can't be detached, npc must move always with the same AI instance.
	 * 
	 * @param newAI
	 *            AI to set for this L2NpcWalkerInstance
	 */
	@Override
	public void setAI(CharacterAI newAI)
	{
		if (!(_ai instanceof NpcWalkerAI))
			_ai = newAI;
	}

	@Override
	public void onSpawn()
	{
		getAI().setHomeX(getX());
		getAI().setHomeY(getY());
		getAI().setHomeZ(getZ());
	}

	/**
	 * Sends a chat to all _knowObjects
	 * 
	 * @param chat
	 *            message to say
	 */
	public void broadcastChat(String chat)
	{
		NpcSay cs = new NpcSay(getObjectId(), Say2.ALL, getNpcId(), chat);
		Broadcast.toKnownPlayers(this, cs);
	}

	/**
	 * NpcWalkers are immortals
	 */
	@Override
	public void reduceCurrentHp(double i, L2Character attacker, boolean awake, boolean isDOT, L2Skill skill)
	{
	}

	/**
	 * NpcWalkers are immortals
	 */
	@Override
	public boolean doDie(L2Character killer)
	{
		return false;
	}

	@Override
	public NpcWalkerAI getAI()
	{
		return (NpcWalkerAI) _ai;
	}

	protected class NpcWalkerAIAccessor extends L2Character.AIAccessor
	{
		/**
		 * AI can't be deattached.
		 */
		@Override
		public void detachAI()
		{
		}
	}
}