/* Love Bug Code

 * By Andrew Woods

* APSI Las Vegas June 2010

* LoveBug follows a given Bug around the screen

 */

import info.gridworld.actor.Bug;

import info.gridworld.grid.Location;

/**

 * A <code>LoveBug</code> points in the direction of the given bug,

 * and moves towards that bug. Step offset can be used to skip acts.

 */

public class LoveBug extends Bug

{

    private Bug myLove ;

    private int intStepOffset = 0 ;

    private int intStep = 0 ;

    /**

     * 

     */

    public LoveBug( Bug inputBug )

    {

        myLove = inputBug ;

    }

    public LoveBug( Bug inputBug , int inputOffset)

    {

        myLove = inputBug ;

        intStepOffset = inputOffset ;

    }

    /**

     * Moves to the next location of the square.

     */

    public void act()

    {

        //set the direction based on the return of the method 

        //that points the bug towards

        //their specified bug

        setDirection ( this.getLocation().getDirectionToward( myLove.getLocation() ) );

        //Move if possible to move

        if ( canMove() && intStep == 0)

        {

            move();

            //reset the step counter

            intStep = intStepOffset ;

        }//End If

        else if ( intStep > 0 )

        {

            intStep--;

        }//End Else if

    }

}

***********************************************************************

import info.gridworld.actor.ActorWorld;

import info.gridworld.grid.Location;

import java.awt.Color;

/**

 * This class runs a world that contains box bugs. <br />

 * This class is not tested on the AP CS A and AB exams.

 */

public class BoxBugRunner

{

    public static void main(String[] args)

    {

        ActorWorld world = new ActorWorld();

        //first set

        BoxBug alice = new BoxBug(6);

        alice.setColor(Color.RED);

        LoveBug bob = new LoveBug( alice , 1 );

        bob.setColor( Color.PINK );

        world.add(new Location(7, 8), alice);

        world.add(new Location(5, 5), bob);

        //Second set

        BoxBug june = new BoxBug(6);

        june.setColor(Color.BLUE);

        LoveBug kyle = new LoveBug( june, 2 );

        kyle.setColor( Color.CYAN );

        world.add(new Location(0, 0), june);

        world.add(new Location(8, 8), kyle);

        //Show

        world.show();

    }

}