Ants
        ====
        Version 3
        
This scenario is part of the book 

    "Introduction to Programming with Greenfoot"
    by Michael Kšlling
    ISBN: 0-13-603753-4

This scenario is discussed in detail in that book.

Copyright (c) Michael Kšlling.

Permission is granted to use this code in any way you like (modification,
copying, distribution).