/*
* 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 2, 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* http://www.gnu.org/copyleft/gpl.html
*/
package com.l2jfrozen.gameserver.geo.pathfinding.cellnodes;
import com.l2jfrozen.gameserver.geo.GeoData;
import com.l2jfrozen.gameserver.geo.pathfinding.Node;
import com.l2jfrozen.gameserver.geo.pathfinding.PathFinding;
import com.l2jfrozen.gameserver.model.L2World;
public final class CellPathFinding extends PathFinding
{
private static final class SingletonHolder {
protected static final CellPathFinding INSTANCE = new CellPathFinding();
}
public static CellPathFinding getInstance()
{
return SingletonHolder.INSTANCE;
}
@Override
public Node[] findPath(int x, int y, int z, int tx, int ty, int tz)
{
int gx = x - L2World.MAP_MIN_X >> 4;
int gy = y - L2World.MAP_MIN_Y >> 4;
if(!GeoData.getInstance().hasGeo(x, y))
return null;
short gz = GeoData.getInstance().getHeight(x, y, z);
int gtx = tx - L2World.MAP_MIN_X >> 4;
int gty = ty - L2World.MAP_MIN_Y >> 4;
if(!GeoData.getInstance().hasGeo(tx, ty))
return null;
short gtz = GeoData.getInstance().getHeight(tx, ty, tz);
Node start = readNode(gx, gy, gz);
Node end = readNode(gtx, gty, gtz);
return searchByClosest(start, end);
}
@Override
public Node[] readNeighbors(Node n, int idx)
{
return GeoData.getInstance().getNeighbors(n);
}
//Private
public Node readNode(int gx, int gy, short z)
{
return new CellNode(gx, gy, z, 0);
}
protected CellPathFinding()
{
//
}
}