这篇是暑假在家写的一个java小游戏，废话不多说，先上图看看具体的效果
初始化页面，由用户输入子弹的数目和子弹的速度
用户输入子弹的数目和子弹的速度后，进入游戏页面，比如子弹个数是11子弹速度为3得到如下主页面
一共11个子弹。用户通过坐上右下方向键控制飞机移动的方向躲避子弹，如果碰到子弹则游戏结束出现如下页面显示用户玩的时间
和最终的分，击败玩家的百分比
下面介绍源代码
飞机类：
package Mygame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyEvent;
public class Plane extends GameObject{
static boolean live =true;
static int speed=20;
boolean left,right,up,down;
public void drawSelf(Graphics g) {//测量飞机的位置并保证飞机不飞向窗口外面
if(live) {
g.drawImage(img, (int)x, (int)y,null);
if(left==true && x>20) {
x-=speed;
}
if(right==true && x+speed<Constant.Game_Width-170) {
x+=speed;
}
if(up==true && y>=10) {
y-=speed;
}
if(down==true && y<Constant.Game_Height-170) {
y+=speed;
}
}
}
public Plane(Image img,double x,double y) {//获取飞机的位置和飞机的大小
this.img=img;
this.x=x;
this.y=y;
this.height=img.getHeight(null);
this.width=img.getWidth(null);
}
public void addDirection(KeyEvent e) {//按下某个键，增加相应的方向
switch(e.getKeyCode()) {
case KeyEvent.VK_LEFT:
left=true;
break;
case KeyEvent.VK_RIGHT:
right=true;
break;
case KeyEvent.VK_UP:
up=true;
break;
case KeyEvent.VK_DOWN:
down=true;
break;
}
}
public void minuDirection(KeyEvent e) {//松开某个键，取消相应的方向
switch(e.getKeyCode()) {
case KeyEvent.VK_LEFT:
left=false;
break;
case KeyEvent.VK_RIGHT:
right=false;
break;
case KeyEvent.VK_UP:
up=false;
break;
case KeyEvent.VK_DOWN:
down=false;
break;
}
}
}
子弹shell类
package Mygame;
import java.awt.Color;
import java.awt.Graphics;
public class Shell extends GameObject{
double degree;
public Shell() {
x=200;
y=200;
width=20;
height=20;
speed=FirstWindow.sp;
degree = Math.random()*Math.PI*2;
}
public void draw(Graphics g) {
Color c=g.getColor();
g.setColor(c.RED);
g.fillOval((int)x,(int) y, width, height);
y+=speed*Math.sin(degree);//炮弹沿着任意角度飞
x+=speed*Math.cos(degree);
if(x<0 || x>Constant.Game_Width-20) {//控制子弹反弹
degree=Math.PI-degree;
}
if(y<0 || y>Constant.Game_Height-20) {//控制子弹反弹
degree=-degree;
}
}
常量类，控制主窗口的大小
public class Constant {
public static final int Game_Width=1000;
public static final int Game_Height=1000;
}
加载图片类
public class GameUtil {
private GameUtil() {
}
public static Image getImage(String path) {
BufferedImage bi=null;
try {
URL u=GameUtil.class.getClassLoader().getResource(path);
bi=ImageIO. read(u);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return bi;
}
}//具体的图片可以自己找，我就不放上去了
声明游戏物体的父类
public class GameObject {
Image img;
double x,y;
int speed;
int height,width;
public void drawSelf(Graphics g) {
g.drawImage(img, (int)x, (int)y,null);
}
public GameObject() {
super();
}
public GameObject(Image img, double x, double y) {
super();
this.img = img;
this.x = x;
this.y = y;
}
public Rectangle getRect() {//返回物体所在的矩形，判断物体是否相撞
return new Rectangle((int)x,(int)y,width,height);
}
}
初始化窗口用来初始化子弹的数目和速度
public class FirstWindow extends JFrame {
static int sum=0;
static int sp =0;
JTextField tf_length;
JTextField speed;
static JButton btn;
static boolean flag=true;
public FirstWindow() {
super("初始化");
this.setBounds(800, 300, 450, 220);
this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);
this.getContentPane().setLayout(new FlowLayout(FlowLayout.RIGHT));
JPanel p1=new JPanel();
p1.add(new JLabel("请输入子弹数"));
tf_length=new JTextField(5);
p1.add(tf_length);
p1.add(new JLabel("请输入子弹速度"));
speed=new JTextField(5);
p1.add(speed);
btn=new JButton("确定");
btn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
try {
sum=Integer.parseInt(tf_length.getText());
sp=Integer.parseInt(speed.getText());
flag=false;
setVisible(false);
MyGameWindow my=new MyGameWindow();
my.launchFrame();
System.out.println(flag);
} catch (NumberFormatException e1) {
// TODO Auto-generated catch block
System.out.println("输入有误，请重新输入");
}
}
});
p1.add(btn);
this.getContentPane().add(p1);
this.setVisible(true);
}
public static void main(String[] args) {
FirstWindow firstWindow=new FirstWindow();
}
}
飞机类主窗口
public class MyGameWindow extends Frame {
Image plane=GameUtil.getImage("Mygame/fly.png");
Image over=GameUtil.getImage("Mygame/over.jpg");
Image bg=GameUtil.getImage("Mygame/xingkong.jpg");
Plane plane1=new Plane(plane,450,700);
boolean flag=true;
Shell shell=new Shell();
FirstWindow firstWindow=new FirstWindow();
Shell[]shells=new Shell[FirstWindow.sum];
Date startTime=new Date();
Date endTime;
int period;
int a=0;
@Override
public void paint(Graphics g) {//自动被调用，g相当于一个画笔
g.drawImage(bg, 0, 0, null);
plane1.drawSelf(g);
for (int i = 0; i < shells.length; i++) {
shells[i].draw(g);
Boolean b=shells[i].getRect().intersects(plane1.getRect());//碰撞检测
if(b) {
Plane.live=false;
flag=false;
if(a==0)
a++;
endTime =new Date();
period=(int)((endTime.getTime()-startTime.getTime())/1000);
if(a==1) {
a=period;
}
}
if(flag==false) {
g.drawImage(over, 400,400, null);
Font f=new Font("宋体",Font.BOLD,40);
g.setColor(Color.yellow);
g.setFont(f);
if(a>100) {
a=100;
}
g.drawString("时间:"+ a+"秒,"+"得分:"+a*FirstWindow.sum*FirstWindow.sp+"
",300 ,100);
g.drawString("
击败全球"+(a*FirstWindow.sum*FirstWindow.sp)/40.0+"%"+"的玩家", 270, 150);
}
}
}
class PaintThread extends Thread{
@Override
public void run() {
while(true) {
repaint();//重画
try {
Thread.sleep(40);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
public void launchFrame()
{
this.setBackground(Color.yellow);
this.setTitle("飞机飞行");
this.setVisible(true);
this.setBounds(400, 50, Constant.Game_Height,Constant.Game_Width);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosed(WindowEvent e) {//alt+?给出提示
System.exit(1);
}
});
new PaintThread().start();
addKeyListener(new KeyMonitor());
//初始化多个子弹
for (int i = 0; i < shells.length; i++) {
shells[i]=new Shell();
}
}
class KeyMonitor extends KeyAdapter{//定义键盘监听
@Override
public void keyPressed(KeyEvent e) {
plane1.addDirection(e);
}
@Override
public void keyReleased(KeyEvent e) {
plane1.minuDirection(e);
}
}
public static void main(String[] args) {
MyGameWindow a=new MyGameWindow();
a.launchFrame();
}
private Image offScreenImage=null;
public void update(Graphics g) {//利用双缓冲解决闪屏问题
if(offScreenImage == null)
offScreenImage =this.createImage(Constant.Game_Height,Constant.Game_Width);
Graphics gOff=offScreenImage.getGraphics();
paint(gOff);
g.drawImage(offScreenImage, 0, 0, null);
}
}