AStarNode.java

package com.soulnew;

/**
 *
 * @author soulnew@soulnew.com
 */
import java.util.*;
import java.math.*;

public class AStarNode {

	/** Creates a new instance of AStarNode */
	public AStarNode(String name, int x, int y) {
		neighbors = new LinkedList();
		this.x = x;
		this.y = y;
		this.name = name;
	}

	public AStarNode(int x, int y) {
		neighbors = new LinkedList();
		this.x = x;
		this.y = y;
		this.name = "(" + x + "," + y + ")";
	}

	String name;
	int costFromStart;
	int estimatedCostToGoal;
	public int x, y;
	AStarNode pathParent;
	List neighbors;

	public String toString() {
		return name;
	}

	public int getEstimatedCost(AStarNode node) { //
		int dx = this.x - node.x;
		int dy = this.y - node.y;
		return (int) Math.sqrt(dx * dx + dy * dy);
	}

	public List getNeighbors() {
		return neighbors;
	}

	public int getCost(AStarNode node) {
		int dx = this.x - node.x;
		int dy = this.y - node.y;
		return (int) Math.sqrt(dx * dx + dy * dy);
	}
	
	public int getDistance(AStarNode node){
		int dx = 10*(this.x - node.x);
		int dy = 10*(this.y - node.y);
		return (int) Math.sqrt(dx * dx + dy * dy);
	}

	@Override
	public boolean equals(Object obj) {
		if (obj instanceof AStarNode) {
			AStarNode node1 = (AStarNode) obj;
			return this.x == node1.x && this.y == node1.y;
		}
		return super.equals(obj);
	}
}