简单飞机大战

package com.bjsxt.plane;

/*
 * 存放相关的常量
 */
public class Constant {
	//游戏窗口的宽度
	public static final int GAME_WIDTH = 500;
	//游戏窗口的高度
	public static final int GAME_HEIGHT = 500;
}

package com.bjsxt.plane;

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

/**
 * 爆炸类
 * @author 15154
 *
 */
public class Explode {

	double x,y;
	int count;
	static Image[] imgs = new Image[16];
	
	static {
		for(int i=0;i<16;i++) {
			imgs[i] = GameUtil.getImage("");
			imgs[i].getWidth(null); //解决懒加载问题
		}
	}
	
	public void drawMySelf(Graphics g) {
		if(count < 16) {
			g.drawImage(imgs[count], (int)x, (int)y, null);
			count++;
		}
	}
	public Explode() {
		// TODO Auto-generated constructor stub
	}
	public Explode(double x, double y) {
		super();
		this.x = x;
		this.y = y;
	}
	
	
}

package com.bjsxt.plane;

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

/*
 * 游戏物体的跟类
 */
public class GameObject {
	
	Image plane;
	double x,y;
	int speed;
	int width,height;
	
	public GameObject(Image plane, double x, double y, int speed, int width, int height) {
		super();
		this.plane = plane;
		this.x = x;
		this.y = y;
		this.speed = speed;
		this.width = width;
		this.height = height;
	}
	
	public GameObject(Image plane, double x, double y, int speed) {
		super();
		this.plane = plane;
		this.x = x;
		this.y = y;
		this.speed = speed;
		this.width = plane.getWidth(null);
		this.height = plane.getHeight(null);
	}


	public void drawMyself(Graphics g) {
		g.drawImage(plane,(int)x,(int)y,width,height,null);
	}
	
	public GameObject() {
		super();
		// TODO Auto-generated constructor stub
	}
	public Rectangle getRec() {
		return new Rectangle((int)x,(int)y,width,height);
	}
}

package com.bjsxt.plane;

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

import javax.imageio.ImageIO;

/**
 * 游戏工具类
 * @author 15154
 *
 */
public class GameUtil {
	public static Image getImage(String path) {
		BufferedImage img = null;
		URL u = GameUtil.class.getClassLoader().getResource(path);
		try {
			img = ImageIO.read(u);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return img;
	}
	public static void main(String[] args) {
		Image img = GameUtil.getImage("images/plane.png");
		Image backgroud = GameUtil.getImage("images/backgroud.png");
		System.out.println(img);
		System.out.println(backgroud);
	}
}

package com.bjsxt.plane;

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;

/**
 * 游戏主窗口0.2
 * @author JioH
 *
 */
public class MyGameFrame extends Frame{
	
	Image planeImage = GameUtil.getImage("images/plane.png");
	Image backgroud = GameUtil.getImage("images/backgroud.png");
	
	static int count = 0;
//	GameObject plane1 = new GameObject(planeImage, 100, 100, 2, 22, 33);
//	GameObject plane2 = new GameObject(planeImage, 200, 100, 2, 22, 33);
	Plane p1 = new Plane(planeImage, 100, 100, 2);
	Plane p2 = new Plane(planeImage, 200, 100, 3);
	
	shell[] shells = new shell[50];
	
	Explode explode;
	
	Date start = new Date();
	Date end;
	long period = 0;

	@Override
	public void paint(Graphics g) {
		System.out.println("绘制窗口的次数："+count);
		count++;
		//画背景
		g.drawImage(backgroud,0,0,500,500,null);
//		plane1.drawMyself(g);
//		plane2.drawMyself(g);
		
		//画飞机
		p1.drawMyself(g);
		p2.drawMyself(g);
		
		//画炮弹
		for(int i=0;i<shells.length;i++) {
			shells[i].drawMyself(g);
			
			//实现碰撞检测
			boolean peng = shells[i].getRec().intersects(p1.getRec());
			if(peng) {
				p1.live = false;
				
				if(explode==null) {
					explode = new Explode(p1.x,p1.y);
				}
				explode.drawMySelf(g);
			}
		}
	}
	//画时间
	public void drawTime(Graphics g) {
		Color c = g.getColor();
		Font f = g.getFont();
		
		g.setColor(Color.green);
		if(p1.live) {
			period = (System.currentTimeMillis() - start.getTime())/1000;
			g.drawString("坚持:"+period,30,30);
		}else {
			if(end == null) {
				end = new Date();
				period = (end.getTime()-start.getTime())/1000;
			}
			g.setFont(new Font("微软雅黑", Font.BOLD, 30)); //微软雅黑粗体30
			g.drawString("最终时间:"+period, 200, 200);
		}
		g.setColor(c);
		g.setFont(f);
	}
	
	//初始化窗口
	public void launchFrame() {
		this.setTitle("飞机大战");
		setVisible(true);//窗口是否可见
		setSize(Constant.GAME_WIDTH,Constant.GAME_HEIGHT);//窗口大小
		setLocation(400,300);//窗口位置
		
		//增加关闭窗口的动作
		this.addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});
		new PaintThread().start(); //启动线程重画
		this.addKeyListener(new keyMonitor()); //启动键盘监听
		
		//初始化创建50个炮弹
		for(int i = 0;i < 50;i++) {
			shells[i] = new shell();
		}
	}
	
	//线程
	class PaintThread extends Thread{
		@Override
		public void run() {
			while(true) {
				repaint(); 
				try {
					Thread.sleep(50); //1s画20次，1s=1000ms
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}
	}
	
	//内部类，实现键盘的监听处理
	class keyMonitor extends KeyAdapter{
		@Override
		public void keyPressed(KeyEvent e) {
			// TODO Auto-generated method stub
			super.keyPressed(e);
			p1.addDirection(e);
		}
		
		@Override
		public void keyReleased(KeyEvent e) {
			// TODO Auto-generated method stub
			super.keyReleased(e);
			p1.minusDirection(e);
		}
	}
	
	//添加双缓存技术
	private Image offScreenImage = null;
	public void update(Graphics g) {
		if(offScreenImage == null) {
			offScreenImage = this.createImage(Constant.GAME_WIDTH,Constant.GAME_HEIGHT); //这是游戏窗口的宽度和高度
		}
		Graphics goff = offScreenImage.getGraphics();
		paint(goff);
		g.drawImage(offScreenImage, 0, 0, null);
	}
	
	public static void main(String[] args) {
		MyGameFrame gameFrame = new MyGameFrame();
		gameFrame.launchFrame();
	}
}

package com.bjsxt.plane;

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

public class Plane extends GameObject{
	boolean left,right,up,down;
	boolean live = true;
	@Override
	public void drawMyself(Graphics g) {
		// TODO Auto-generated method stub
		super.drawMyself(g);
		//飞机飞行的算法可以自行设定
//		x += speed;
		if(live) {
			if(left) {
				x -= speed;
			}
			if(right) {
				x += speed;
			}
			if(up) {
				y += speed;
			}
			if(down) {
				y -= speed;
			}
		}
		
	}
	
	public void addDirection(KeyEvent e) {
		if(e.getKeyCode()==KeyEvent.VK_LEFT) {
			left = true;
		}
		if(e.getKeyCode()==KeyEvent.VK_RIGHT) {
			right = true;
		}
		if(e.getKeyCode()==KeyEvent.VK_UP) {
			up = true;
		}
		if(e.getKeyCode()==KeyEvent.VK_DOWN) {
			down = true;
		}
	}
	
	public void minusDirection(KeyEvent e) {
//		if(e.getKeyCode()==KeyEvent.VK_LEFT) {
//		left = false;
//	}
//	if(e.getKeyCode()==KeyEvent.VK_RIGHT) {
//		right = false;
//	}
//	if(e.getKeyCode()==KeyEvent.VK_UP) {
//		up = false;
//	}
//	if(e.getKeyCode()==KeyEvent.VK_DOWN) {
//		down = false;
//	}
		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;
	}
	}
	
	public Plane(Image plane, double x, double y, int speed) {
		super (plane,x,y,speed);
	}
}

package com.bjsxt.plane;

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

public class shell extends GameObject{
	
	double degree; //角度
	
	public shell() {
		x = 200;
		y = 200;
		degree = Math.random()*Math.PI*2;
		width = 10;
		height = 10;
		speed = 7;
	}
	@Override
	public void drawMyself(Graphics g) {
		// TODO Auto-generated method stub
		Color c = g.getColor();
		g.setColor(Color.yellow);
		g.fillOval((int)x, (int)y, width, height);
		g.setColor(c);
		//根据自己的算法指定移动的路径
		x += speed*Math.cos(degree);
		y += speed*Math.sin(degree);
	}
}

总览