import java.util.Scanner;

import becker.robots.*;
/** A subclass of City that includes a method for placing rectangles
 * made of walls.  
 * 
 * @author Mary Elaine Califf
 *
 */
public class RectangleCity extends City 
{

	/**
	 * Default constructor
	 */
	public RectangleCity() 
	{
		super();
	}
	
	/** Constructor allowing specification of the size of the city as 
	 * initially visible
	 * @param numVisStreets
	 *   Number of streets initially visible
	 * @param numVisAvenues
	 *   Number of avenues initially visible
	 */
	public RectangleCity(int numVisStreets, int numVisAvenues)
	{
		super(numVisStreets,numVisAvenues);
	}

	/** Creates a rectangle out of walls in the city
	 * @param top
	 *   The location of the top row of intersections inside the rectangle
	 * @param left
	 *   The location of the left most column of intersections inside the rectangle
	 * @param height
	 *   The height of the rectangle 
	 * @param width
	 *   The width of the rectangle
	 */
	public void makeRectangle(int top, int left, int height, int width)
	{
		// lay out the vertical walls
		for (int i = top; i < top+height; i++)
		{
			new Wall(this,i,left,Direction.WEST);
			new Wall(this,i,left+width-1,Direction.EAST);
		}
		// lay out the horizontal walls
		for (int i = left; i < left+width; i++)
		{
			new Wall(this,top,i,Direction.NORTH);
			new Wall(this,top+height-1,i,Direction.SOUTH);
		}
	}
}