Greenfoot Newtons Lab3

changeColor.java

    private void bounceAtEdge()
    {
        if (getX() == 0 || getX() == getWorld().getWidth()-1) {
            setLocation((double)getX(), (double)getY());
            getMovement().revertHorizontal();
            accelerate(0.9);
            // getImage() is part of the Actor class
            GreenfootImage currentImage = getImage();
            // private method that returns a color
            Color randomColor = generateRandomColor();
            currentImage.setColor(randomColor);
            // evem after we set the color, we still need to fill the image
            // if we just use currentImage.fill(), it will fill a square
           
            int imageHeight = getImage().getHeight();
            currentImage.fillOval(0, 0, imageHeight, imageHeight);
   
        }
        else if (getY() == 0 || getY() == getWorld().getHeight()-1) {
            setLocation((double)getX(), (double)getY());
            getMovement().revertVertical();
            accelerate(0.9);
        }
    }
    
    private Color generateRandomColor() {
        int r = Greenfoot.getRandomNumber(256);
        int g = Greenfoot.getRandomNumber(256);
        int b = Greenfoot.getRandomNumber(256);
        Color randomColor = new Color(r, g, b);
        return randomColor;
    }