public class WalkingDoll {
  
  /**
   * Which character node position are we at?
   **/
  public CharNode current; 
  
  /**
   * Starting position for new walking.
   **/
  public CharNode start;
  
  /**
   * Position for the character
   **/
  public int x, y;
  
  public int getX() {return x;}
  public int getY() {return y;}
  public void setLoc(int nux, int nuy){x=nux; y=nuy;}
  
  /**
   * FrameSequence for the display
   **/
  FrameSequence frames;
  
  /** 
   * We'll do the list setup in the constructor
   **/
  public WalkingDoll(){
    FileChooser.setMediaPath("D:/cs1316/mediasources/");
    Picture p = null; // For loading up images
    
    p = new Picture(FileChooser.getMediaPath("gal1-rightface.jpg"));
    start = new CharNode(p);
    p = new Picture(FileChooser.getMediaPath("gal1-right2.jpg"));
    CharNode rightfoot = new CharNode(p);
    p = new Picture(FileChooser.getMediaPath("gal1-rightface.jpg"));
    CharNode center = new CharNode(p);
    p = new Picture(FileChooser.getMediaPath("gal1-right1.jpg"));
    CharNode leftfoot = new CharNode(p);
    start.setNext(rightfoot); rightfoot.setNext(center);
    center.setNext(leftfoot);
    // Now the scary one
    leftfoot.setNext(start);
    
    frames = new FrameSequence("D:/Temp/");
  }
  
  /**
   * Setup to display walking left to right
   **/
  public void setUp(){
    x = 0; // Left side
    y = 300; // 300 pixels down
    frames.show();
    this.start();
  }
  
  /**
   * Start a walking sequence
   **/
  public void start() { 
    current = start;
    this.draw();
  }
  
  /**
   * Draw the current character
   **/
  public void draw() {
    Picture bg = new Picture(400,400);
    Turtle pen = new Turtle(bg);
    pen.setPenDown(false); pen.moveTo(x,y);
    current.drawWith(pen);
    frames.addFrame(bg);
  }
  
  /**
   * Draw the next step
   **/
  public void step(){
    current = (CharNode) current.getNext();
    x=x+10; // We'll try this
    this.draw();
  }
  
  /**
   * Draw a few steps
   **/
  public void steps(int num){
    for (int i=0; i < num; i++) {this.step();}}
  
  /**
   * Delegate replay
   **/
  public void replay(int delay){
    frames.replay(delay);
  }
  
}