/*
 * Copyright (c) 2009 Anthony Steed and Manuel Fradinho Oliveira
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the 
 * following conditions are met:
 * 1. Redistributions of source code must retain the above
 *    copyright notice, this list of conditions and the 
 *    following disclaimer.
 * 2. Redistributions in binary form must reproduce the above 
 *    copyright notice, this list of conditions and the 
 *    following disclaimer in the documentation and/or other 
 *    materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of 
 *    this software must display the following acknowledgement:
 *       This product includes software from the book "Networked 
 *       Graphics" written by Anthony Steed and Manuel Fradinho
 *       Oliveira published by Morgan Kaufmann
 * 4. Neither the name of the University nor of the Department
 *    may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 * 5. Neither the name of Cyntelix may be used to enforese or 
 *    promote products derived from this software without prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS 
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, 
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO 
 * EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE FOR ANY 
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION). HOWEVER CAUSED 
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Contact Info: Anthony Steed
 *               a.steed@cs.ucl.ac.uk
 *
 *               Manuel Fradinho Oliveira
 *               mfradinho@cyntelix.com
 *
 */
import javax.vecmath.*;
import java.util.*;

public class Flock {
  Vector           _flock;
    
  public Flock(int numBoids, Color3f colour) {
    Boid boid = null;    
    _flock = new Vector();
    for (int num = 0; num < numBoids; num++) {
      boid = new Boid(colour);
      boid.randomPos();
      boid.worldConstraints();
      _flock.add(boid);
    }    
  }
  
  public int numBoids() {
    return _flock.size();
  }
  
  public Enumeration getBoids() {
    return _flock.elements();  
  }
}