import java.awt.*;

/* CS111 Lab 2: Writing Java Methods - Task 2: Checksboard
 NAME: Stella
 BAsed on an older version used in CS111 previously
 WHEN: Aug 24, 2007
 COMMENTS:
 
 */
 
public class Checksboard extends BuggleWorld {
  public void setup() {
   setDimensions(5,5);
  }
  
  /*The checkerboard we are asked to draw can be seen as consisted of
   4 individual triangles.
  So, the method drawOneTriangle() is called
   4 times in order to create the final pattern. */
  
  //Notice how the position and facing of the Buggle after it has drawn
  //a triangle, is critical to successfully drawing the next one!
  public void run () {
  
    CheckerBuggle cheek = new CheckerBuggle(); //create a new instance of a CheckerBuggle
    
    cheek.draw4Triangles();  
    
  } // run()
 
  //------------------------------------------------------------------------------
  // The following main method is needed to run the applet as an application

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

//**************************************************************

class CheckerBuggle extends Buggle {

  // draws one basic triangle, made of three basic squares.
  //Leaves the buggle to the right of the right basis, facing NORTH
  public void drawOneTriangle () {
    //debugging statement below prints to console
    System.out.println("Just inside drawOneTriangle method");          
    brushUp();
    forward();
    brushDown();
    forward();
    brushUp();
    left();
    forward();
    brushDown();
    backward();
    right();
    brushUp();
    forward();
    brushDown();
    forward();
    left();
    //debugging statement below prints to console window
    System.out.println("About to leave drawOneTriangle method"); 
  } // drawOneTriangle()
  
  
  //Draws 4 basic little triangles, to fill up completely a 5x5 grid, as asked in task 2
  //Uses the previuosly defined drawOneTriangle () method
    public void draw4Triangles() {
    drawOneTriangle();  //ends next to the right basis, facing NORTH
    
    setColor(Color.blue);
    drawOneTriangle();  //draw the second triangle
    
    setColor(Color.yellow);
    drawOneTriangle();  
    
    setColor(Color.black);
    drawOneTriangle();  //draw the fourth triangle
  }
  
  
  
} // class CheckerBuggle