打砖块java代码详细

package net.mjrg.gs.form;

import javax.swing.JFrame;

public class FormMain extends JFrame {

public FormMain()

{

MyPanel pane = new MyPanel();

this.add(pane);

this.setTitle("打砖块游戏");

this.setSize(800, 600);

this.setV isible(true);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

}

package net.mjrg.gs.form;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Point;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

import java.util.Random;

import javax.swing.BorderFactory;

import javax.swing.JPanel;

import javax.swing.border.BevelBorder;

public class MyPanel extends JPanel implements Runnable, MouseListener, MouseMotionListener {

private boolean isRun = true;

private int paiX = 50;

private int paiY = 560;

private final int paiWidth = 30;

private final int paiHeight = 15;

private int ballX = 50;

private int ballY = 30;

private Thread th;

private int moveAngle = 30;

private int moveStep = 10;

private final double PI = 3.1415926;

public MyPanel() {

this.setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED));

this.setBackground(Color.WHITE);

this.addMouseListener(this);

this.addMouseMotionListener(this);

}

@Override

public void run() {

// TODO Auto-generated method stub

while (isRun) {

this.repaint();

try {

Thread.currentThread().sleep(50);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

@Override

public void paintComponent(Graphics g) {

// TODO Auto-generated method stub

super.paintComponent(g);

drawBall(g);

drawPai(g);

check();

}

private void check() {

if (ballX >= paiX && ballX <= paiX + paiWidth && ballY > paiY - 3)

{

moveAngle = 180 - moveAngle;

}

else if (ballX > 0 && ballX < 800 & ballY < 10) // 碰到上壁

{

moveAngle = 180 - moveAngle;

} else if (ballY > 0 && ballY < 600 && ballX > 790) // 碰到右壁

{

moveAngle = 360 - moveAngle;

} else if (ballY > 575 && ballX > 0 && ballX < 790) // 碰下壁

{

isRun = false;

} else if (ballX < 10 && ballY > 0 && ballY < 600) // 碰左壁

{

moveAngle = moveAngle-270;

}

}

private void drawBall(Graphics g) {

ballX = ballX + (int) (moveStep * Math.sin(moveAngle * PI / 180));

ballY = ballY + (int) (moveStep * Math.cos(moveAngle * PI / 180));

g.setColor(Color.RED);

g.fillArc(ballX, ballY, 10, 10, 0, 360);

}

private void drawPai(Graphics g) {

g.setColor(Color.BLACK);

g.fill3DRect(paiX, paiY, paiWidth, paiHeight, true);

}

@Override

public void mouseClicked(MouseEvent e) {

// TODO Auto-generated method stub

Random rnd = new Random();

ballX = 100; // 10+ rnd.nextInt(780);

ballY = 100; // 10+rnd.nextInt(550);

moveAngle = 30; // rnd.nextInt(360);

th = new Thread(this);

isRun = true;

th.start();

}

@Override

public void mouseEntered(MouseEvent e) {

// TODO Auto-generated method stub

}

@Override

public void mouseExited(MouseEvent e) { // TODO Auto-generated method stub

}

@Override

public void mousePressed(MouseEvent e) { // TODO Auto-generated method stub

}

@Override

public void mouseReleased(MouseEvent e) { // TODO Auto-generated method stub

}

@Override

public void mouseDragged(MouseEvent e) { // TODO Auto-generated method stub

}

@Override

public void mouseMoved(MouseEvent e) { // TODO Auto-generated method stub

paiX = e.getX();

}

}

package net.mjrg.gs;

import net.mjrg.gs.form.FormMain;

public class GSMain {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

new FormMain();

}

}