Java开发小游戏，简单的弹球 代码分享！

package day06; import javax.swing.JFrame; public class BallFrame { public BallFrame(){ JFrame frame = new JFrame(); frame.setTitle("弹球游戏"); frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE); frame.setBounds(100,200,800,600); frame.setVisible(true); BallPanel bp = new BallPanel(); frame.add(bp); frame.setVisible(true); } public static void main(String[] args) { new BallFrame(); } } package day06; import java.awt.Color; import java.awt.Graphics; import java.awt.event.MouseEvent; import java.awt.event.MouseMotionListener; import javax.swing.JPanel; public class BallPanel extends JPanel implements MouseMotionListener { final static int RIIGHT_DOWN = 0; final static int LEFT_DOWN=1; final static int LEFT_UP =2; final static int RIGHT_UP=3; int f=0; int speed = 10; int bx=0; int by=0; int dx=100; int dy=400; public BallPanel(){ move(); addMouseMotionListener(this); } public void paint(Graphics g){ super.paint(g); setBackground(Color.black); g.setColor(Color.yellow); g.fillOval(bx, by,20, 20); g.setColor(Color.blue); g.fillRect(dx, dy, 100, 20); } public void move(){ new Thread(){ public void run(){ while(true){ if(f==0){ bx =speed; by =speed; } if(f==1){ bx-=speed; by =speed; } if(f==2){ bx-=speed; by-=speed; } if(f==3){ bx =speed; by-=speed; } if(bx>800-20){ if(f==0){ f=1; }else{ f=2; } } if(by>600-20){ if(f==1){ f=2; }else{ f=3; } } if(bx<0){ if(f==1){ f=0; }else{ f=3; } } if(by<0){ if(f==2){ f=1; }else{ f=0; } } if (by >= 400 - 20) { if (bx >= dx && bx <= dx 100) { speed ; } else { Thread.currentThread().stop(); } if (speed >= 20) { speed = 20; } if (f == 1) { f = 2; } else { f = 3; } } repaint(); try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } }.start(); } @Override public void mouseDragged(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mouseMoved(MouseEvent e) { // TODO Auto-generated method stub dx = e.getX()-100/2; } }

本章内容如果感兴趣的话，可以关注我，不定期分享源码；

想学习的话，可以私聊我，一起学习，么么哒~