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Preston_5564C07.fm Page 270 Monday, September 26, 2005 5:38 AM

270 CHAPTER 7 ■ NAVIGATION

Example 7-17. Room.java
package com.scottpreston.javarobot.chapter7;

import java.util.ArrayList;

public class Room extends Vertex {

private ArrayList regions = new ArrayList();
private ArrayList edges = new ArrayList();

public Room(String name) {
super(name);
}

public void addRegion(Region r) {
regions.add(r);
}

public void addEdge(Region r1, Region r2, DistanceVector vect) {
vect.v1 = r1;
vect.v2 = r2;
edges.add(vect);
}

public static Room getBasement() {
// 1st create regions
Region a = new Region("home",36);
a.setCharacteristic(new int[]{0,0,1,1});
// add specific location of the trash can
Region b = new Region("trash",36);
b.setCharacteristic(new int[]{1,0,0,1});
b.addWayPoint("can",80,20);
Region c = new Region("desk",24);
c.setCharacteristic(new int[]{1,1,0,0});
Region d = new Region("exit",24);
d.setCharacteristic(new int[]{0,1,0,1});
Region e = new Region("treadmill",48);
c.setCharacteristic(new int[]{0,1,1,0});
Region f = new Region("fridge",36);
c.setCharacteristic(new int[]{1,0,0,0});
Region g = new Region("sofa",24);
c.setCharacteristic(new int[]{0,0,0,1});