/**
 * A simple Turtle drawing program
 * 
 * @author Pat Troy: troy AT uic DOT edu
 */

// add import statements to get items from Java libraries
import java.awt.Color;

// Note the name of the class in the following line MUST
// match the name of the file.  
public class Lect0920e
{
  
  public static void main (String[] args) 
  {
    System.out.println("Begin Java Exection");
    System.out.println("");


    // put your Java Program here
    
    // Step 1.  Create the world
    //String filename;
    //filename = FileChooser.pickAFile ();
    //System.out.println (filename);
    Picture p;
    //p = new Picture (filename);
    p = new Picture (640, 480);
    
    Turtle t2;
    t2 = new Turtle (p);
    t2.setPenWidth (5);
    
    int count = 0;
    int length;

    while ( count < 8 )
    {
      length = 100 - (count * 10);
      drawOctogon (t2, length );
      t2.turn (45);
      count = count + 1;
    }
    
    // Final step,  Show the world the turtle lives in
    p.show();

    System.out.println("");
    System.out.println("End Java Exection");
  } // end of method main
 
  public static void drawSquare ( Turtle tParam )
  {
    int count;
    int numSides;
    int degrees;
    numSides = 4;
    degrees = 360 / numSides;
    count = 0;
    while ( count < numSides)
    {
      tParam.forward (150);
      tParam.turn (degrees);
      count = count + 1;
    }
  }
  
   public static void drawSquare2 ( Turtle tParam , int length)
  {
    int count;
    int numSides;
    int degrees;
    numSides = 4;
    degrees = 360 / numSides;
    count = 0;
    while ( count < numSides)
    {
      tParam.forward (length);
      tParam.turn (degrees);
      count = count + 1;
    }
  }
  
   
   public static void drawOctogon ( Turtle tParam , int length)
  {
    int count;
    int numSides;
    int degrees;
    
    numSides = 8;
    degrees = 360 / numSides;
    count = 0;
    
    while ( count < numSides)
    {
      tParam.forward (length);
      tParam.turn (degrees);
      count = count + 1;
    }
  }
   
 public static void drawOctogon ( Turtle tParam , int length, Color c)
  {
    int count;
    int numSides;
    int degrees;
    Color existingColor;
    
    numSides = 8;
    degrees = 360 / numSides;
    count = 0;
    
    // save the current pen color
    existingColor = tParam.getPenColor();
    tParam.setPenColor (c);
    
    while ( count < numSides)
    {
      tParam.forward (length);
      tParam.turn (degrees);
      count = count + 1;
    }
    
    // reset the  pen to the original color
    tParam.setPenColor (existingColor);
  }
  
} // end of class