/*
 * 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 com.l2jserver.gameserver.network.clientpackets;

import java.nio.BufferUnderflowException;

import com.l2jserver.Config;
import com.l2jserver.gameserver.TaskPriority;
import com.l2jserver.gameserver.ai.CtrlIntention;
import com.l2jserver.gameserver.model.L2CharPosition;
import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
import com.l2jserver.gameserver.network.serverpackets.ActionFailed;
import com.l2jserver.gameserver.network.serverpackets.PartyMemberPosition;
import com.l2jserver.gameserver.util.Util;

/**
 * This class ...
 *
 * @version $Revision: 1.11.2.4.2.4 $ $Date: 2005/03/27 15:29:30 $
 */
public class MoveBackwardToLocation extends L2GameClientPacket
{
	//private static Logger _log = Logger.getLogger(MoveBackwardToLocation.class.getName());
	// cdddddd
	private int _targetX;
	private int _targetY;
	private int _targetZ;
	@SuppressWarnings("unused")
	private int _originX;
	@SuppressWarnings("unused")
	private int _originY;
	@SuppressWarnings("unused")
	private int _originZ;
	private int _moveMovement;
	
	//For geodata
	private int _curX;
	private int _curY;
	@SuppressWarnings("unused")
	private int _curZ;
	
	public TaskPriority getPriority()
	{
		return TaskPriority.PR_HIGH;
	}
	
	private static final String _C__01_MOVEBACKWARDTOLOC = "[C] 01 MoveBackwardToLoc";
	
	@Override
	protected void readImpl()
	{
		_targetX = readD();
		_targetY = readD();
		_targetZ = readD();
		_originX = readD();
		_originY = readD();
		_originZ = readD();
		try
		{
			_moveMovement = readD(); // is 0 if cursor keys are used  1 if mouse is used
		}
		catch (BufferUnderflowException e)
		{
			if (Config.L2WALKER_PROTECTION)
			{
				L2PcInstance activeChar = getClient().getActiveChar();
				Util.handleIllegalPlayerAction(activeChar, "Player " + activeChar.getName() + " is trying to use L2Walker and got kicked.", Config.DEFAULT_PUNISH);
			}
		}
	}
	
	@Override
	protected void runImpl()
	{
		L2PcInstance activeChar = getClient().getActiveChar();
		if (activeChar == null)
			return;
		// Correcting targetZ from floor level to head level (?)
		// Client is giving floor level as targetZ but that floor level doesn't
		// match our current geodata and teleport coords as good as head level! 
		// L2J uses floor, not head level as char coordinates. This is some 
		// sort of incompatibility fix.
		// Validate position packets sends head level.
		_targetZ += activeChar.getTemplate().collisionHeight;
		
		_curX = activeChar.getX();
		_curY = activeChar.getY();
		_curZ = activeChar.getZ();

		if (activeChar.getTeleMode() > 0)
		{
			if (activeChar.getTeleMode() == 1)
				activeChar.setTeleMode(0);
			activeChar.sendPacket(ActionFailed.STATIC_PACKET);
			activeChar.teleToLocation(_targetX, _targetY, _targetZ, false);
			return;
		}
		
		if (_moveMovement == 0 && Config.GEODATA < 1) // cursor movement without geodata is disabled
		{
			activeChar.sendPacket(ActionFailed.STATIC_PACKET);
		}
		else
		{
			double dx = _targetX - _curX;
			double dy = _targetY - _curY;
			// Can't move if character is confused, or trying to move a huge distance
			if (activeChar.isOutOfControl() || ((dx * dx + dy * dy) > 98010000)) // 9900*9900
			{
				activeChar.sendPacket(ActionFailed.STATIC_PACKET);
				return;
			}
			activeChar.getAI().setIntention(CtrlIntention.AI_INTENTION_MOVE_TO, new L2CharPosition(_targetX, _targetY, _targetZ, 0));
			
			if (activeChar.getParty() != null)
				activeChar.getParty().broadcastToPartyMembers(activeChar, new PartyMemberPosition(activeChar));
		}
	}
	
	/* (non-Javadoc)
	 * @see com.l2jserver.gameserver.clientpackets.ClientBasePacket#getType()
	 */
	@Override
	public String getType()
	{
		return _C__01_MOVEBACKWARDTOLOC;
	}
}
