/*
 * File: CollectNewspaperKarel.java
 * Author: Saba Pochkhua
 * --------------------------------
 * At present, the CollectNewspaperKarel subclass does nothing.
 * Your job in the assignment is to add the necessary code to
 * instruct Karel to walk to the door of its house, pick up the
 * newspaper (represented by a beeper, of course), and then return
 * to its initial position in the upper left corner of the house.
 */

import stanford.karel.*;

public class CollectNewspaperKarel extends SuperKarel {

	/*
	 * Using "public void run()" we are commending Karel 3 to do things :
	 * 1. to go to the  newspaper
	 * 2. then to take the newspaper
	 * 3. and finally return to the start point
	 */
	public void run () {
		goToNewspaper ();
		takeNewspaper ();
		goBack ();
	}

	/*
	 * Precondition: Karel is standing on the 3X4 coordinates
	 * Postcondition: Karel is standing on the 6X3 coordinates
	 */
	 private void goToNewspaper() {
		 move();
		 move();
		 turnRight ();
		 move();
		 turnLeft();
		 move();
	 }

	 /*
	  * Precondition: no newspaper in bag
	  * postcondition: newspaper in bag
	  */
	 private void takeNewspaper() {
		 pickBeeper();
	 }

	 /*
	  * Precondition: Karel is standing on the 6X3 coordinates
	  * Postcondition: Karel is standing on the 3X4 coordinates
	  */
	 private void goBack() {
		 turnAround();
		 move ();
		 turnRight();
		 move();
		 turnLeft();
		 move();
		 move();
		 turnAround();
	 }

}