import java.awt.*;
/*
 * FILE NAME: CheckerBoardSquare.java
 * AUTHOR: Stella
 * DATE: Sept 16, 2007
 * COMMENTS: Uses methods to draw the picture as shown in the lab3 page.
 * It uses the "Square approach", as noted in the lab3 page.
 *
 * MODIFICATION HISTORY: The idea is based on an earlier version 
 * written by Lyn (?) (when?)
 * 
 * */
public class CheckerBoardSquare extends BuggleWorld {
 
 public void setup () {
  this.setDimensions(8,8);
 }
 
 public void run () {
  CheckerBuggle barb = new CheckerBuggle();
  
  barb.draw8x8square(Color.red, Color.blue);
  barb.draw8x8square(Color.green, Color.pink);
  barb.draw8x8square(Color.cyan, Color.magenta);
  
 }
 
 //------------------------------------------------------------------------------
 // The following main method is needed to run the applet as an application

 public static void main (String[] args) {
   runAsApplication(new CheckerBoardSquare(), "CheckerBoardSquare"); 
 }
}


class CheckerBuggle extends Buggle {
  
  //Draws a 8x8 square, colored c1 and c2.
  //Ends at the starting position
  public void draw8x8square(Color c1, Color c2) {
    System.out.println("Inside make8x8square");
    this.draw4x4square(c1, c2); //square 1,1
    this.forward(4);
    this.draw4x4square(c1, c2); //square 2,1
    
    this.backLeftFwRight(4);
    
    this.draw4x4square(c1, c2); //square 2,1
    this.forward(4);
    this.draw4x4square(c1, c2); //square 2,2
  
    this.backRightFwLeft(4); //come back to the starting position
  }
  
  
  //Draws a 4x4 square, colored c1 and c2.
  //Ends with the buggle at the left-bottom cell,
  //i.e. the same position it started the square, \//and her brush Up
  public void draw4x4square(Color c1, Color c2) {
    System.out.println("Inside draw4x4square");
    this.draw2x2square(c1, c2); //square 1,1   
    this.forward(2); 
    this.draw2x2square(c1, c2); //square 2,1
    
    this.backLeftFwRight(2);
    
    this.draw2x2square(c1, c2); //square 2,1 
    this.forward(2); 
    this.draw2x2square(c1, c2); //square 2,2
    this.backRightFwLeft(2);
  }
  
  //Draws a 2x2 square, colored c1 and c2.
  //Ends with the buggle at the left-bottom cell,
  //i.e. the same as the starting position,
  // and her brush Up.
  public void draw2x2square(Color c1, Color c2) {
    System.out.println("Inside draw2x2square");
    this.brushUp();
    this.paintCell(c1);
    this.left();
    this.forward();
    this.paintCell(c2);
    this.right();
    this.forward();
    this.paintCell(c1);
    this.right();
    this.forward();
    this.paintCell(c2);
    this.left();
    this.backward();
    
  }

  //Moves the buggle backward, then turns it right, then forward and then left
    public void backRightFwLeft(int steps) {
    this.backward(steps);
    this.right();
    this.forward(steps);
    this.left();
  }
  
	//Moves the buggle backward, then turns it left, then forward and then right
  public void backLeftFwRight(int steps) {
    this.backward(steps);
    this.left();
    this.forward(steps);
    this.right();
  }
}