Java写飞机小游戏（入门小项目）

努力生长的大长腿 2019-06-17 01:16:52

刚刚学Java没多久，都推荐写这个小项目，自己也模仿着写了，写的不是很好，自己也很菜，附上源码，大家一起学习吧！。 package cn.jd.game;

import java.awt.Color;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Date;

/**飞机游戏主窗口
*
* @author 大帅哥
*
*/

@SuppressWarnings("serial")
public class MyGameFrame extends Frame {

Image planeimg = Gameutil.getImage("Images/plane.png");
Image bg = Gameutil.getImage("Images/bg.jpg");

Plane plane = new Plane(planeimg,250,250);
Shell[] shells = new Shell[50];
Explode bao ;
Date startTime = new Date();
Date endTime;
int period;

@Override
public void paint(Graphics g) { //paint是系统调用
Color c = g.getColor();

g.drawImage(bg, 0, 0, null);
plane.drawSelf(g);
for(int i=0;i<shells.length;i++) {//画出所有炮弹
shells[i].draw(g);

boolean peng = shells[i].getRect().intersects(plane.getRect());
if(peng) {
plane.live = false;
if(bao==null) {
bao = new Explode(plane.x,plane.y);
endTime = new Date();
period =(int)(endTime.getTime()-startTime.getTime()/1000);

}

bao.draw(g);

}
if(!plane.live) {

g.setColor(Color.red);
Font f = new Font("宋体",Font.BOLD,50);
g.setFont(f);
g.drawString("时间"+period+"秒", 150,150);
}//计时功能
}

g.setColor(c);

}

//反复重画窗口
class PaintThread extends Thread {
@Override
public void run() {
while(true){
repaint();

try {
Thread.sleep(40); //1s=1000ms
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}

}
//键盘监听
class KeyMonitor extends KeyAdapter{

@Override
public void keyPressed(KeyEvent e) {
plane.addDirection(e);
}

@Override
public void keyReleased(KeyEvent e) {
plane.minusDirection(e);
}

}

//初始化窗口
public void launchFrame(){
this.setTitle("大帅哥");
this.setVisible(true);
this.setSize(Constant.GAME_HEIGH, Constant.GAME_WIDTH);
this.setLocation(300, 300);

this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});

new PaintThread().start(); //启动线程
addKeyListener(new KeyMonitor() );//启动监听
//初始化50炮弹

for(int i = 0;i<shells.length;i++) {
shells[i] = new Shell();

}

}

public static void main(String[] args) {
MyGameFrame f = new MyGameFrame();
f.launchFrame();
}

//双缓冲解决闪烁问题
private Image offScreenImage = null;
public void update(Graphics g) {
if(offScreenImage == null)
offScreenImage = this.createImage(Constant.GAME_WIDTH, Constant.GAME_HEIGH);
Graphics gOff = offScreenImage.getGraphics();
paint(gOff);
g.drawImage(offScreenImage, 0, 0, null);

} package cn.jd.game;

import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;

import javax.imageio.ImageIO;

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) {
e.printStackTrace();
}
return bi;
}

} package cn.jd.game;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Rectangle;

public class GameObject {
Image img;
double x , y;
int speed;
int width,height;

public void drawSelf(Graphics g) {
g.drawImage(img, (int)x, (int)y, null);

}

public GameObject(Image img, double x, double y, int speed, int width, int height) {
super();
this.img = img;
this.x = x;
this.y = y;
this.speed = speed;
this.width = width;
this.height = height;
}

public GameObject(Image img, double x, double y) {
super();
this.img = img;
this.x = x;
this.y = y;
}
public GameObject() {//无参构造器

}
public Rectangle getRect() {
return new Rectangle((int)x, (int)y, width, height);//返回矩形，碰撞检测
}

}package cn.jd.game;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyEvent;

public class Plane extends GameObject {
boolean left,up,right,down;
boolean live = true;

public void drawSelf(Graphics g) {
if(live) {
g.drawImage(img, (int)x, (int)y, null);
if(left) {
x-=speed;
}
if(right) {
x+=speed;
}
if(down) {
y+=speed;
}
if(up) {
y-=speed;
}
}else {

}

}
public Plane(Image img,double x,double y) {
this.img= img;
this.x= x;
this.y= y;
this.speed = 3;
this.width = img.getWidth(null);
this.height = img.getHeight(null);
}
//按下某键，执行某方向
public void addDirection(KeyEvent e) {
switch (e.getKeyCode()) {
case KeyEvent.VK_LEFT:
left = true;
break;
case KeyEvent.VK_UP:
up = true;
break;
case KeyEvent.VK_RIGHT:
right = true;
break;
case KeyEvent.VK_DOWN:
down = true;
break;
}

}
public void minusDirection(KeyEvent e) {
switch (e.getKeyCode()) {
case KeyEvent.VK_LEFT:
left = false;
break;
case KeyEvent.VK_UP:
up = false;
break;
case KeyEvent.VK_RIGHT:
right = false;
break;
case KeyEvent.VK_DOWN:
down = false;
break;
}

}

}package cn.jd.game;

import java.awt.Color;
import java.awt.Graphics;

/**
* 炮弹类
* @author
*
*/

public class Shell extends GameObject{
double degree;
public Shell() {
x = 200;
y = 200;
width = 10;
height = 10;
speed = 2;
degree = Math.random()*Math.PI*2; //给degree一个随机数
}

public void draw(Graphics g){
Color c = g.getColor();
g.setColor(Color.GREEN);
g.fillOval((int)x, (int)y, width, height);

x += speed*Math.cos(degree);
y += speed*Math.sin(degree);

if(x<0||x>Constant.GAME_WIDTH-width){
degree = Math.PI-degree;
}
if(y<0||y>Constant.GAME_HEIGH-height) {
degree = - degree;
}

g.setColor(c);
}

}package cn.jd.game;

public class Constant {
public static final int GAME_WIDTH = 500;
public static final int GAME_HEIGH = 500;

}package cn.jd.game;

import java.awt.Graphics;
import java.awt.Image;

public class Explode {
double x,y;
static Image[] imgs = new Image[16];
static {
for(int i=0;i<16;i++) {
imgs[i] = Gameutil.getImage("image/explode/e"+(i+1)+".gif");
imgs[i].getWidth(null);
}
}
int count ;
public void draw(Graphics g) {
if(count<=15) {
g.drawImage(imgs[count], (int)x, (int)y, null);
count++;
}
}
public Explode(double x ,double y) {
this.x=x;
this.y=y;
}

}

}