// SquareTurtle.java
// a turtle that can draw squares and a staircase of squares

public class SquareTurtle extends Turtle { // SquareTurtle is a subclass of Turtle
  
  public void drawHalfSquare (double sideLength) {
    
    // Delete the following line before adding your code
    forward(100); left(45); 
    
    // ADD YOUR CODE HERE
    
  }
  
  public void drawSquare(double sideLength) {
    drawHalfSquare(sideLength);
    drawHalfSquare(sideLength);
  }
  
  public void drawStaircase (double sideLength, int levels, double shrink) {
    
    // Delete the following line before adding your code
    drawSquare(sideLength);
    
    // ADD YOUR CODE HERE
    
  }
  
}