/*
 * 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.pathfinding;

public abstract class AbstractNode
{
	private AbstractNodeLoc _loc;
	private AbstractNode _parent;
	
	public AbstractNode(AbstractNodeLoc loc)
	{
		_loc = loc;
	}
	
	public void setParent(AbstractNode p)
	{
		_parent = p;
	}
	
	public AbstractNode getParent()
	{
		return _parent;
	}
	
	public AbstractNodeLoc getLoc()
	{
		return _loc;
	}
	
	public void setLoc(AbstractNodeLoc l)
	{
		_loc = l;
	}
	
	/**
	 * @see java.lang.Object#hashCode()
	 */
	@Override
	public int hashCode()
	{
		final int prime = 31;
		int result = 1;
		result = prime * result + ((_loc == null) ? 0 : _loc.hashCode());
		return result;
	}
	
	/**
	 * @see java.lang.Object#equals(java.lang.Object)
	 */
	@Override
	public boolean equals(Object obj)
	{
		if (this == obj)
			return true;
		
		if (obj == null)
			return false;
		
		if (!(obj instanceof AbstractNode))
			return false;
		
		final AbstractNode other = (AbstractNode) obj;
		if (_loc == null)
		{
			if (other._loc != null)
				return false;
		}
		else if (!_loc.equals(other._loc))
			return false;
		
		return true;
	}
}