BrickBreaker game - ball

import java.awt.Color;
import java.awt.Rectangle;

public class Ball extends Rectangle
{

    int xspeed = 3;
    int yspeed = 3;
    int diameter = 16;
    Color colour = Color.RED;
    boolean onPaddle = true;


    /* This constructor could also set the ball starting at a random position and speed,
     * but I think we'll just start it on the paddle.
     */
    Ball() {
        // uncomment the following line if you want each ball to have a different random colour
        //colour = new Color(Color.HSBtoRGB((float)Math.random(), 1.0f, 1.0f));
        this.width = this.height = diameter;
    }

    /* This is called from the main BlockBreaker class in initialize()
     * as well as everytime the ball hits the bottom of the screen
     */
    void putOnPaddle(Rectangle p) {
        this.y = p.y - this.height;
        this.x = p.x + p.width/2;
        xspeed = yspeed = 3;    //reset speeds
        onPaddle = true;
    }
}