Java实现飞机大战游戏 附完整源码

  JFrame jf = new JFrame("飞机大战"); //创建窗体
        jf.setSize(670,800);
        jf.setLocationRelativeTo(null);
        jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        jf.setLayout(new BorderLayout()); //布局

        //创建三个JPanel,左上为按钮，左下为分数显示 右为游戏页面
        JPanel left = new JPanel(); 
        JPanel leftUp = new JPanel();  //左上
        JPanel leftDown = new JPanel();   //左下
        game = new JPanel();   //游戏显示区

        left.setPreferredSize(new Dimension(170,800));
        left.setBackground(new Color(-3355444));
        jf.add(left,BorderLayout.WEST);

        jf.add(game,BorderLayout.CENTER);
        game.requestFocus();
        left.setLayout(new BorderLayout());

        leftUp.setPreferredSize(new Dimension(0,250));
        leftUp.setBackground(new Color(-3355444));
        left.add(leftUp,BorderLayout.NORTH);

        leftDown.setBackground(new Color(-6710887));
        leftDown.setPreferredSize(new Dimension(0,550));
        left.add(leftDown,BorderLayout.SOUTH);

public boolean judge_crash(FlyObject fo){
        if(x+sizeX<fo.x || y+sizeY<fo.y || x > fo.x + fo.sizeX || y > fo.y+ fo.sizeY ){
            return false;
        }else{
            return true;
        }
    }

  String fileName_0 = "src\\plane2\\z_img\\img_bg_0.jpg"; //相对地址（和绝对地址区分开）
        BufferedImage bufferedImage;  
        bufferedImage = ImageIO.read(new File(fileName_0));  //将文件读出记录在bufferedImage中，记得抛出异常
        g.drawImage(bufferedImage,0,0,null);   // 将bufferedImage中的内容画在画笔g对应的地方

img – the specified image to be drawn. This method does nothing if img is null.
        dx1 – the x coordinate of the first corner of the destination rectangle. 
        dy1 – the y coordinate of the first corner of the destination rectangle.
        dx2 – the x coordinate of the second corner of the destination rectangle.
        dy2 – the y coordinate of the second corner of the destination rectangle.
        sx1 – the x coordinate of the first corner of the source rectangle.
        sy1 – the y coordinate of the first corner of the source rectangle.
        sx2 – the x coordinate of the second corner of the source rectangle.
        sy2 – the y coordinate of the second corner of the source rectangle.
        observer – object to be notified as more of the image is scaled and converted.
    public abstract boolean drawImage(Image img,
                                      int dx1, int dy1, int dx2, int dy2,
                                      int sx1, int sy1, int sx2, int sy2,
                                      ImageObserver observer);

/**
* @author liTianLu
* @Date 2022/5/21 23:33
* @purpose 绘制背景
 * 提醒： 这里我写了四种地图的绘制，后面在选择地图时会用到。 
*/
public class BackGround {
    Graphics g;
    BufferedImage bufferedImage_1;
    BufferedImage bufferedImage_2;
    BufferedImage bufferedImage_3;
    BufferedImage bufferedImage_4;
    int w;
    int h;
    String fileName_1 = "src\\plane2\\z_img\\img_bg_1.jpg";   //地图1
    String fileName_2 = "src\\plane2\\z_img\\img_bg_2.jpg";   //地图2
    String fileName_3 = "src\\plane2\\z_img\\img_bg_3.jpg";   //地图3
    String fileName_4 = "src\\plane2\\z_img\\img_bg_4.jpg";   //地图4
    public BackGround(Graphics g) throws IOException {
        this.g = g;
        bufferedImage_1 = ImageIO.read(new File(fileName_1));
        bufferedImage_2 = ImageIO.read(new File(fileName_2));
        bufferedImage_3 = ImageIO.read(new File(fileName_3));
        bufferedImage_4 = ImageIO.read(new File(fileName_4));
        w = bufferedImage_1.getWidth();
        h = bufferedImage_1.getHeight();
    }
    /**
    * i ： 向下移动了i个像素
    * num : 用来控制绘制哪一个地图
    */
    public void draw(int i , int num){ 
        switch(num){
            case 1 :
                g.drawImage(bufferedImage_1,0,i,w,i+h,0,0,w,h,null);
                g.drawImage(bufferedImage_1,0,0,w,i,0,h-i,w,h,null);
                break;
            case 2 :
                g.drawImage(bufferedImage_2,0,i,w,i+h,0,0,w,h,null);
                g.drawImage(bufferedImage_2,0,0,w,i,0,h-i,w,h,null);
                break;
            case 3 :
                g.drawImage(bufferedImage_3,0,i,w,i+h,0,0,w,h,null);
                g.drawImage(bufferedImage_3,0,0,w,i,0,h-i,w,h,null);
                break;
            case 4 :
                g.drawImage(bufferedImage_4,0,i,w,i+h,0,0,w,h,null);
                g.drawImage(bufferedImage_4,0,0,w,i,0,h-i,w,h,null);
                break;
        }
    }
    public int getH() {
        return h;
    }
}

backGround.draw(m, player.mapNum);
            m = m+2;
            if(m>= backGround.getH()){
                m = 0;
            }

//这里仅使用了三张图片来回切换，更多的图片会有更好的效果
public void draw(int i){    //此处的i是用来控制显示哪一张图片的
        int j = i%30; // 150ms换一张 
        if (j<10){
            g.drawImage(plane_img,x,y,x+sizeX,y+sizeY,0,0,sizeX,sizeY,null);
        }else if(j<20) {
            g.drawImage(plane_img,x,y,x+sizeX,y+sizeY,0,sizeY,sizeX,2*sizeY,null);
        }else if(j<30){
            g.drawImage(plane_img,x,y,x+sizeX,y+sizeY,288,0,424,112,null);
        }
    }

 @Override
        //键盘按压时，设置速度
    public void keyPressed(KeyEvent e) {
        int c = e.getKeyCode();
        if(DrawThread.myPlane!=null){
            switch (c){
                case 37:
                    DrawThread.myPlane.setSpeedX(-speed);
                    break;
                case 38:
                    DrawThread.myPlane.setSpeedY(-speed);
                    break;
                case 39:
                    DrawThread.myPlane.setSpeedX(speed);
                    break;
                case 40:
                    DrawThread.myPlane.setSpeedY(speed);
                    break;
            }
        }
    }

@Override
        //键盘释放时，速度设为0
    public void keyReleased(KeyEvent e) { 
        int c = e.getKeyCode();
        switch (c){
            case 37:
            case 39:
                DrawThread.myPlane.setSpeedX(0);
                break;
            case 38:
            case 40:
                DrawThread.myPlane.setSpeedY(0);
                break;
        }
    }

/**
* @author liTianLu
* @Date 2022/5/22 0:30
* @purpose 产生敌机的线程
*/
    @Override
    public void run() {
        int sleepTime  = 800;
        while (true){
            if(DrawThread.player.score>=500){  //当分数高于500时，加快敌机产生的频率
                sleepTime = 300;
            }
            EnemyPlane enemyPlane = null;
            try {
                enemyPlane = new EnemyPlane();
            } catch (IOException e) {
                e.printStackTrace();
            }
            enemyPlanes.add(enemyPlane);
            new Thread(new EnemyBulletThread(enemyPlane)).start(); //启动一个发射子弹线程
            try {
                sleep(sleepTime+ random.nextInt(300));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

public EnemyBulletThread(EnemyPlane enemyPlane){
        this.enemyPlane = enemyPlane;
    }
    @Override
    public void run() {
        try {
            sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        while(enemyPlane.isAlive() ){
            EnemyBullet enemyBullet = null;
            int enemyBullet_x = enemyPlane.getX()+25;
            int enemyBullet_y = enemyPlane.getY()+66;
            try {
                enemyBullet = new EnemyBullet(enemyBullet_x,enemyBullet_y);
            } catch (IOException e) {
                e.printStackTrace();
            }
            enemyBullets.add(enemyBullet);
            try {
                sleep(2000+ random.nextInt(2000));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

synchronized (MyPlane.myBulletList){
    if(MyPlane.myBulletList.size()!=0){
        for (int i = 0; i < MyPlane.myBulletList.size(); i++) {
            MyPlane.myBulletList.get(i).setY(MyPlane.myBulletList.get(i).getY()+MyPlane.myBulletList.get(i).getSpeedY()    );

            if(MyPlane.myBulletList.get(i).getY() <= -100){
                MyPlane.myBulletList.remove(i);
                continue;
            }
        }
    }
}

synchronized (MyPlane.myBulletList){
    for (int i = 0; i < MyPlane.myBulletList.size(); i++) {
        for (int j = 0; j < EnemyPlaneThread.enemyPlanes.size() ;j++) {
            if(MyPlane.myBulletList.get(i).judge_crash(EnemyPlaneThread.enemyPlanes.get(j)) ){
                EnemyPlaneThread.enemyPlanes.get(j).setAlive(false);  //关线程
                DrawThread.player.score+=5; //分数+5
                EnemyPlaneThread.enemyPlanes.remove(j);
                MyPlane.myBulletList.remove(i);
                j = -1;
            }
            if(i >= MyPlane.myBulletList.size()){
                break;
            }
        }

    }
}