turtle.java

一个TSP问题的图形演示程序

/*
 *  This code is from the book:
 *
 *    Winder, R and Roberts, G (2000) Developing Java
 *    Software, second edition, John Wiley & Sons.
 *
 *  It is copyright (c) 2000 Russel Winder and Graham Roberts.
 */

package SimFrameWork ;
/**
 *  This class represents the basic properties of a turtle in a
 *  simulation.
 *
 *  @version 2.0 March 1999
 *  @author Graham Roberts
 */
public abstract class Turtle {
  /**
   *  A turtle must be located on a patch when constructed.
   *
   *  @param p patch turtle is located on.
   */
  public Turtle(Patch p) {
    location = p ;
  }
  /**
   *  Update turtle state one time state.
   */
  public abstract void update() ;
  /**
   *  Patch where turtle is currently located.
   */
  protected Patch location ;
}