import cs1705.*;

// -------------------------------------------------------------------------
/**
 *  This robot adds extra behaviors to a NavigatorBot so that it can trace
 *  out a pattern of beepers and relay commands to another robot to
 *  duplicate the pattern.
 * 
 *  @author  Stephen Edwards
 *  @version 2003.09.21
 */
public class StencilBot
    extends NavigatorBot
{
    //~ Variables .............................................................
    
    NavigatorBot copier;
    
    //~ Constructors ..........................................................

    // ----------------------------------------------------------
    /**
     * Construct a stencil robot by specifying its starting state.
     * The parameters are just passed to the corresponding NavigatorBot
     * constructor.
     */
    public StencilBot( int          street,
                       int          avenue,
                       Direction    facing,
                       int          numBeepers,
                       NavigatorBot buddy )
    {
        super( street, avenue, facing, numBeepers );
        copier = buddy;
    }


    //~ Methods ...............................................................

    // ----------------------------------------------------------
    /**
     * Trace through all the intersections in the specified area, giving
     * commands to the copier to duplicate any beeper piles found.
     * 
     * @ param height the height of the area in streets
     * @ param width  the width  of the area in streets
     */
    public void duplicatePattern( int height, int width )
    {
        int street = 1;
        int avenue = 1;
        while ( avenue <= width )
        {
            street = 1;
            while ( street <= height )
            {
                moveTo( street, avenue );
                if ( nextToABeeper() )
                {
                    copier.moveTo( street, avenue );
                    copier.putBeeper();
                }
                street++;
            }
            avenue++;
        }
    }
}