import java.awt.Color;
   
/**
 * Class that represents a turtle which is similar to a Logo turtle.
 * This class inherts from SimpleTurtle and is for students
 * to add methods to.
 *
 * Copyright Georgia Institute of Technology 2004
 * @author Barb Ericson ericson@cc.gatech.edu
 */
public class Turtle extends SimpleTurtle
{
  ////////////////// constructors ///////////////////////
  
  /** Constructor that takes the x and y and a picture to
   * draw on
   * @param x the starting x position
   * @param y the starting y position
   * @param picture the picture to draw on
   */
  public Turtle (int x, int y, Picture picture) 
  {
    // let the parent constructor handle it
    super(x,y,picture);
  }
  
  /** Constructor that takes the x and y and a model
   * display to draw it on
   * @param x the starting x position
   * @param y the starting y position
   * @param modelDisplayer the thing that displays the model
   */
  public Turtle (int x, int y, ModelDisplay modelDisplayer) 
  {
    // let the parent constructor handle it
    super(x,y,modelDisplayer);
  }
  
  /** Constructor that takes the model display
   * @param modelDisplay the thing that displays the model
   */
  public Turtle (ModelDisplay modelDisplay) 
  {
    // let the parent constructor handle it
    super(modelDisplay);
  }
  
  /**
   * Constructor that takes a picture to draw on
   * @param p the picture to draw on
   */
  public Turtle (Picture p)
  {
    // let the parent constructor handle it
    super(p);
  }
  
  /////////////////// methods /////////////////////// 
  // put all new method after here
  
  // write the method to draw a regular polygon
  public void drawRegularPolygon (int numSides, int length)
  {
    int index;
    int turnAmount;
    
    turnAmount = 360 / numSides;
    
    for ( index = 1 ; index <= numSides ;  index = index + 1 )
    {
      this.forward (length);
      this.turn (turnAmount);
    } 
  }  // end of drawRegular Polygon
  
  
 


} // end of class Turtle, put all new methods before this