Colony

import java.util.Map;

import java.util.HashMap;

import java.awt.Point;

public class RobotList extends HashMap <Integer, RobotIcon> {

  /**

  * Creates a new RobotList

  */

  public RobotList () {

    super();

  }

  /**

  * For a given Point, finds the robot that conatins this Point

  * graphically. The coordinate system is based on the dimensions

  * of the image returned by the webcam loader, not the coordinates

  * of the panel containing the image in the applet. Returns null

  * if no robot contains the Point, or if the Point is null. If

  * multiple robots overlap the point, one will be chosen arbitrarily.

  */

  public RobotIcon getBoundingIcon (Point p) {

    if (p == null)

      return null;

    for (Map.Entry <Integer,RobotIcon> entry : this.entrySet()) {

                        RobotIcon r = entry.getValue();

                        if (r.contains(p.x, p.y)) {

                                return r;

                        }

                }

                return null;

  }  

}