Debugging

/*
 * File: StoneMasonKarel.java
 * --------------------------
 * The StoneMasonKarel subclass as it appears here does nothing.
 * When you finish writing it, it should solve the "repair the quad"
 * problem from Assignment 1.  In addition to editing the program,
 * you should be sure to edit this comment so that it no longer
 * indicates that the program does nothing.
 */

import stanford.karel.*;

public class StoneMasonKarel extends SuperKarel {
        public void run (){
                columnBuilding () ;
                }

        private void columnBuilding () {
                placeColumn () ;
                if (facingEast()) {
                        repositionForRowToWest () ;
                        columnBuilding () ;
                }
                if (facingWest ()) {
                        repositionForRowToEast () ;
                        columnBuilding () ;
                }
                if (facingEast () && frontIsClear()) {
                        columnBuilding () ;
                }
        }


        private void placeColumn () {
                if (noBeepersPresent ()) {
                        putBeeper () ;
                } else {
                        for (int i=0; i<4;i++) move () ;
                                if (noBeepersPresent ()) {
                                        putBeeper () ;
                                }
                }
                while (frontIsClear()) {
                        for (int i=0; i<4;i++) move () ;
                        if (noBeepersPresent ()) {
                        putBeeper () ;
                        }
                }
        }

        private void repositionForRowToWest () {
                turnLeft () ;
                if (frontIsBlocked ()) {
                        turnAround () ;
                }
                move () ;
                turnLeft () ;
        }

        private void repositionForRowToEast () {
                turnRight () ;
                if (frontIsBlocked ()) {
                        turnAround () ;
                }
                move () ;
                turnRight () ;
        }
}