/** Chapter 2, Exercise Set 1, Question 1
 *  Write a simple driver program that constructs a BoundedEnv
 *  environment and then tests answers to Analysis Question Set 2.
 **/

public class ExSet1Q1
{
  // Specify number of rows and columns in environment.
  private static final int ENV_ROWS = 20;  // rows in environment
  private static final int ENV_COLS = 20;  // columns in environment

  /** Start the Marine Biology Simulation program.
   *  The String arguments (args) are not used in this application.
   **/
  public static void main(String[] args)
  {
    // Construct an empty environment and several fish in the context
    // of that environment.
    BoundedEnv env = new BoundedEnv(ENV_ROWS, ENV_COLS);

    Location loc1 = new Location(7, 3);
    Location loc2 = new Location(7, 4);
    Direction dir1 = env.getDirection(loc1, loc2);
    Direction dir2 = dir1.toRight(90);
    Direction dir3 = dir2.reverse();
    Location loc3 = env.getNeighbor(loc1, dir3);
    Location loc4 = env.getNeighbor(new Location(5, 2), dir1);

    System.out.println("loc1 neighbors:  " + env.neighborsOf(loc1));
    System.out.println("dir1 = " + dir1);
    System.out.println("dir2 = " + dir2 + " dir3 = " + dir3);
    System.out.println("loc3 = " + loc3);
    System.out.println("loc4 = " + loc4);
  }
}