private GreenfootImage image1;
   private GreenfootImage image2;
   int changeDelay =0;
   private int prevX;
   private int prevY;
   private int level;
   private int storeCurrentPosition;
   
   private boolean leftIsPressed = false;
   private boolean rightIsPressed = false;
   /**
    * Act - do whatever the Santa wants to do. This method is called whenever
    * the 'Act' or 'Run' button gets pressed in the environment.
    */
   public void act() 
   {
        // Add your action code here.
        checkMove();
        checkCollision();
        storeCurrentPosition();
        switchImage();
        createImages();
        updateChangeDelay();
        
   }    
    
   /**
   * Checks to see if a key has been pressed and moves the player accordingly
   */
   private void checkMove()
   {
       if(Greenfoot.isKeyDown("left"))
         if(leftIsPressed == false)
         {
            turn (-45);
            leftIsPressed = true;
        }
        if((!Greenfoot.isKeyDown("left")) && (leftIsPressed == true))
        leftIsPressed = false;
              
        
       if(Greenfoot.isKeyDown("right"))
         if(rightIsPressed == false)
         {
            turn (45);
            rightIsPressed = true;
        }
        if((!Greenfoot.isKeyDown("right")) && (rightIsPressed == true))
        rightIsPressed = false;
        
       if(Greenfoot.isKeyDown("up"))
          move(1);
       
       if(Greenfoot.isKeyDown("down"))
          move(-1 );
   }//end of method checkMove
    
   private void createImages()
   {
        image1 = new GreenfootImage("santa1.png");
        image2 = new GreenfootImage("santa2.png");
        setImage(image1);
   }
    
   private void updateChangeDelay()
   {
       changeDelay+=1;
   }
   
   public void switchImage()//switches the images and sets the delay between the change
   {
        if(changeDelay>=1)
        {
            if (getImage() == image1)
            {
                setImage(image2);
            }
            else
            {
                setImage(image1);
            }//endif
            changeDelay=0;
        }//endif
   }//end of method switchImagE
}

public Santa()
{
    createImages();
}