How to use java to realize billiards Mini Game

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Billiard Mini Game

The two pictures are placed in the same directory of src

Version 1. Window appears

Package cn.xjion.game;/** * window appears * @ author xjion * * / import java.awt.*;import javax.swing.*;// inherits window class public class BallGame extends JFrame {/ / window loading method void launchFrame () {/ / window size, width and height setSize (300300); / / position of the window, setLocation (400200) from the upper left corner of the window; / / window visible setVisible (true) } / / main method, execute entry public static void main (String [] args) {/ / New object BallGame bg = new BallGame (); / / call method bg.launchFrame ();}}

Version 2. Loading diagram

There is a cache problem with the loaded images here. You need to minimize the window before opening it.

Package cn.xjion.game;/** * load picture * @ author xjion * * / import java.awt.*;import javax.swing.*;// inherits the window class public class BallGame extends JFrame {/ / to create an object of two pictures, representing two pictures Image ball = Toolkit.getDefaultToolkit (). GetImage ("image/ball.png"); Image desk = Toolkit.getDefaultToolkit (). GetImage ("image/desk.jpg") / / method of drawing window public void paint (Graphics g) {/ / drawing desktop g.drawImage (desk, 0,0, null); / / drawing ball object with coordinates 100100 g.drawImage (ball, 100,100, null);} / / method of window loading void launchFrame () {/ / window size, width and height setSize (856500); / / position of the window, distance from the position of the upper left corner of the window setLocation (505050); / / window visible setVisible (true) } / / main method, execute entry public static void main (String [] args) {/ / New object BallGame bg = new BallGame (); / / call method bg.launchFrame ();}}

Version 3. Make the ball move

Package cn.xjion.game;/** * horizontal scrolling * @ author xjion * * / import java.awt.*;import javax.swing.*;// inherits the window class public class BallGame extends JFrame {/ / to create an object of two pictures, representing two pictures Image ball = Toolkit.getDefaultToolkit (). GetImage ("image/ball.png"); Image desk = Toolkit.getDefaultToolkit (). GetImage ("image/desk.jpg"); int x = 100; int y = 100; boolean right = true / / public void paint (Graphics g) {/ / draw desktop g.drawImage (desk, 0,0, null); / / draw ball object with coordinates 100100 g.drawImage (ball, x, y, null); / / add 10 if you go right, otherwise subtract 10 if (right) {x = x + 10;} else {x = x-10;} / return if (x > 856-40-30) {right = false when the ball ends } if (x500-40-30 | | y856-40-30 | | x