Java经典小游戏-飞机大战(FunnyTopGun)

效果图：

游戏窗口有两个，一个类似于登录界面，点击屏幕跳转到另一个主窗口。

WASD控制上下左右，空格键攻击。只用单一的主窗口线程的话键盘不能同时响应移动和攻击事件，所以创建多线程来控制事件发生：

	PaintThread pt = new PaintThread();  //画图线程
	MyBulletThread bt = new MyBulletThread();  //控制我放飞机射击事件
	EnemyThread et = new EnemyThread();  //控制敌方飞机生成和销毁
	EnemyMoveThread ems = new EnemyMoveThread(); //控制敌方飞机的移动
	EnemyShootThread est = new EnemyShootThread(); //控制敌方飞机射击

我方子弹、敌方飞机、敌方子弹对象利用ArrayList存储：

	// 动态数组存储我方子弹、敌人、敌人子弹
	List<Bullet> mybulletlist = new ArrayList<Bullet>();
	List<Enemy> enemylist = new ArrayList<Enemy>();
	List<Bullet> enemybulletlist = new ArrayList<Bullet>();

通过线程循环遍历集合来进行图形的碰撞检测，子弹出边界或触碰到飞机会自动销毁：

// 画我方子弹
		for (int i = 0; i < mybulletlist.size(); i++) {		
			
			//子弹存活就画出来
			if(mybulletlist.get(i).isLive()) {
				mybulletlist.get(i).draw(gBuffer);	
				
				//我方子弹与敌人的碰撞检测
				for(int j = 0;j<enemylist.size(); j++) {
					
					//发生碰撞设置live为false，敌人hp-5
					if (mybulletlist.get(i).getRect().intersects(enemylist.get(j).getRect())) {
						mybulletlist.get(i).setLive(false);
						enemylist.get(j).setHp(enemylist.get(j).getHp() - 5);
					}
					
					//子弹无碰撞则继续移动
					else {					
						mybulletlist.get(i).setY(mybulletlist.get(i).getY() - sp);
					}
				}
			}						
		}

画面闪烁通过引入双缓存解决：

if (iBuffer == null) {
			iBuffer = createImage(this.getWidth(), this.getHeight());
		}
		gBuffer = iBuffer.getGraphics();
		gBuffer.drawImage(bg, 0, 0, this.getWidth(), this.getHeight(), null);
		// ...
		g.drawImage(iBuffer, 0, 0, this.getWidth(), this.getHeight(), null);

通过设置暂停标识符控制线程暂停。在线程run()中加入while(pause)，pause开始为false不执行内部循环，为true时线程进入死循环达到暂停效果。

	public class PaintThread implements Runnable {
		@Override
		public void run() {
			// TODO 自动生成的方法存根
			while (true) {
				while (pause) {
					try {
						Thread.sleep(60);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
				repaint();
				try {
					Thread.sleep(60);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}
	}

目录文件：

窗口类部分代码：

package appwindow;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.Image;
import java.awt.event.*;

public class StartWindow extends JFrame{		
	/**
	 * 
	 */
	private static final long serialVersionUID = 8073145223230620434L;

	public StartWindow() {		
	}	
	
	public void init() {
		this.setTitle("FunnyTopGun");			
		this.setSize(860,480);  
		this.setResizable(false);
		this.setLocation(0,0);    
		this.setVisible(true);		
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
	}	
	
	public void backimg() {		
		JLabel img_lab = new JLabel();			
		img_lab.setSize(860,480);
		img_lab.setLocation(0, 0);	
		img_lab.setVisible(true);
		add(img_lab);			
		ImageIcon icon = new ImageIcon("img//start.gif"); 
		icon.setImage(icon.getImage().getScaledInstance(img_lab.getWidth(),img_lab.getHeight(),Image.SCALE_DEFAULT));		
		img_lab.setIcon(icon);
		this.add(img_lab);
	}
	
	public static void main(String[] args) {	
		StartWindow app1 = new StartWindow();	
		app1.init();
		app1.backimg();
		app1.addMouseListener(new MouseAdapter() {
			public void mouseClicked(MouseEvent e) { 
				app1.dispose();
                MainWindow app2 = new MainWindow();
	    	}   
	    });
    }       
}
	

游戏物体父类部分代码：

package flyobject;

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

public class FlyObject {
		
	int width;
	int height;
    Image img;
	int x;
	int y;	
	int speed;
	boolean live;
	int hp;	
	
	public FlyObject() {		
	}
	
	public void draw(Graphics g) {
		g.drawImage(img, x, y, width, height, null);
	}	
	
    public Rectangle getRect() {
	    return new Rectangle((int)x,(int)y,width,height);
	}
	
	public Image getImg() {
		return img;
	}
	public void setImg(Image img) {
		this.img = img;
	}
	public int getX() {
		return x;
	}
	public void setX(int x) {
		this.x = x;
	}
	public int getY() {
		return y;
	}
	public void setY(int y) {
		this.y = y;
	}
	public int getWidth() {
		return width;
	}
	public void setWidth(int width) {
		this.width = width;
	}
	public int getHeight() {
		return height;
	}
	public void setHeight(int height) {
		this.height = height;
	}
	public int getSpeed() {
		return speed;
	}
	public void setSpeed(int speed) {
		this.speed = speed;
	}
	public int getHp() {
		return hp;
	}
	public void setHp(int hp) {
		this.hp = hp;
	}
	public boolean isLive() {
		return live;
	}
	public void setLive(boolean a) {
		this.live = a;
	}
}

目前还存在的BUG是游戏暂停后再开始时我方飞机移动会不受控制一小段时间。

源码：funnytopgun