Java坦克大战（2）

Java坦克大战（2）

MyPanel.java

package com.gqz.tankgame5;

import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.io.File;
import java.util.Vector;

/**
 * @author gqz
 * @version 1.0
 * 坦克大战的绘图区域
 */
public class MyPanel extends JPanel implements KeyListener, Runnable {
    //定义我的坦克
    Hero hero = null;
    //考虑到多线程，使用Vector来保存
    Vector<EnemyTank> enemyTanks = new Vector<>();
    //定义一个存放Node对象的Vector，用于回复敌人坦克的坐标和方向
    Vector<Node> nodes = new Vector<>();
    //定义Vector用于存放Bomb
    Vector<Bomb> bombs = new Vector<>();
    //敌方坦克数量
    int enemyTankSize = 3;

    //定义三张图片
    Image image1 = null;
    Image image2 = null;
    Image image3 = null;

    public MyPanel(String key) {
        //先判断文件是否存在
        //如果文件存在，就正常执行，不存在则开启新游戏，key = "1"
        File file = new File(Recorder.getFileRecord());
        if (file.exists()){
            nodes = Recorder.getNodesAndEnemyTankNum();
        } else{
            System.out.println("文件不存在，只能开启新游戏");
            key = "1";
        }

        //nodes = Recorder.getNodesAndEnemyTankNum();
        //将MyPanel对象的enemyTanks设置给Recorder的enemyTanks
        Recorder.setEnemyTanks(enemyTanks);
        hero = new Hero(500, 100);
        hero.setSpeed(2);
        switch (key){
            case "1":
                Recorder.setAllEnemyTankNum(0);
                //初始化敌人坦克
                for (int i = 0; i < enemyTankSize; i++) {
                    EnemyTank enemyTank = new EnemyTank(100 * (i + 1), 0);
                    //将enemyTanks设置给enemyTanks
                    enemyTank.setEnemyTanks(enemyTanks);
                    enemyTank.setSpeed(2);
                    //初始炮筒方向设置
                    enemyTank.setDirect(2);
                    //启动敌人坦克线程，让它动起来
                    Thread thread = new Thread(enemyTank);
                    thread.start();
                    //加一颗子弹
                    Shot shot = new Shot(enemyTank.getX() + 20, enemyTank.getY() + 60, enemyTank.getDirect());
                    //加入enemyTank的Vector
                    enemyTank.shots.add(shot);
                    //启动shot对象
                    new Thread(shot).start();
                    enemyTanks.add(enemyTank);
                }
                break;
            case "2":
                //初始化敌人坦克
                for (int i = 0; i < nodes.size(); i++) {
                    EnemyTank enemyTank = new EnemyTank(nodes.get(i).getX(),
                            nodes.get(i).getY());
                    //将enemyTanks设置给enemyTanks
                    enemyTank.setEnemyTanks(enemyTanks);
                    enemyTank.setSpeed(2);
                    //初始炮筒方向设置
                    enemyTank.setDirect(nodes.get(i).getDirect());
                    //启动敌人坦克线程，让它动起来
                    Thread thread = new Thread(enemyTank);
                    thread.start();
                    //加一颗子弹
                    Shot shot = new Shot(enemyTank.getX() + 20, enemyTank.getY() + 60, enemyTank.getDirect());
                    //加入enemyTank的Vector
                    enemyTank.shots.add(shot);
                    //启动shot对象
                    new Thread(shot).start();
                    enemyTanks.add(enemyTank);
                }
                break;
            default:
                System.out.println("输入错误");
        }

        //初始化图片对象
        image1 = Toolkit.getDefaultToolkit().getImage(
                Panel.class.getResource("/bomb_1.gif"));
        image2 = Toolkit.getDefaultToolkit().getImage(
                Panel.class.getResource("/bomb_2.gif"));
        image3 = Toolkit.getDefaultToolkit().getImage(
                Panel.class.getResource("/bomb_3.gif"));


        new AePlayWave("src\\111.wav").start();
    }

    //编写方法，显示我方击毁敌方坦克数量
    public void showInfo(Graphics g){
        //画出玩家总成绩
        g.setColor(Color.BLACK);
        Font font = new Font("宋体", Font.BOLD, 25);
        g.setFont(font);
        g.drawString("您累计击毁敌方坦克数量",1020,30);
        drawTank(1020,60,g,0,0);//画出一个敌方坦克
        g.setColor(Color.BLACK);
        g.drawString(Recorder.getAllEnemyTankNum() + "",1080,100);
    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);
        g.fillRect(0, 0, 1000, 750);//填充矩形，默认黑色

        showInfo(g);
        //画出坦克，封装方法
        if (hero != null && hero.isLive) {
            drawTank(hero.getX(), hero.getY(), g, hero.getDirect(), 1);
        }

//        //画出Hero射击的子弹
//        if (hero.shot != null && hero.shot.isLive == true) {
//            g.fill3DRect(hero.shot.x, hero.shot.y, 2, 2, false);
//        }
        //将hero的子弹集合遍历取出绘制
        for (int i = 0; i < hero.shots.size(); i++) {
            Shot shot = hero.shots.get(i);
            if (shot != null && shot.isLive == true) {
                g.fill3DRect(shot.x, shot.y, 2, 2, false);
            } else {//如果shot已经无效，则拿掉
                hero.shots.remove(shot);
            }
        }

        //如果bombs集合中有对象，就画出
        for (int i = 0; i < bombs.size(); i++) {
            //取出炸弹
            Bomb bomb = bombs.get(i);
            //根据当前对象的life值画出对应的图片
            if (bomb.life > 6) {
                g.drawImage(image1, bomb.x, bomb.y, 60, 60, this);
            } else if (bomb.life > 3) {
                g.drawImage(image2, bomb.x, bomb.y, 60, 60, this);
            } else {
                g.drawImage(image3, bomb.x, bomb.y, 60, 60, this);
            }
            //让炸弹的生命值减少
            bomb.lifeDown();
            //如果bomb life为0
            if (bomb.life == 0) {
                bombs.remove(bomb);
            }
        }

        //画出敌人的坦克
        for (int i = 0; i < enemyTanks.size(); i++) {
            //从Vector中取出坦克
            EnemyTank enemyTank = enemyTanks.get(i);
            //判断当前坦克是否还存活
            if (enemyTank.isLive) {//当敌人坦克存活才画出坦克
                //画出坦克
                drawTank(enemyTank.getX(), enemyTank.getY(), g, enemyTank.getDirect(), 0);
                //画出enemyTank的子弹
                for (int j = 0; j < enemyTank.shots.size(); j++) {
                    //取出子弹
                    Shot shot = enemyTank.shots.get(j);
                    //绘制
                    if (shot.isLive) {
                        g.fill3DRect(shot.x, shot.y, 2, 2, false);
                    } else {
                        //从Vector移除
                        enemyTank.shots.remove(shot);
                    }
                }
            } else {//不一样的地方，老韩在hitTank里面写了移除
                enemyTanks.remove(i);
                Recorder.addAllEnemyTankNum();
            }
        }
    }


    /**
     * g 画笔
     * direct 坦克方向（上下左右）
     * type 坦克类型
     */
    //编写方法，绘制坦克
    public void drawTank(int x, int y, Graphics g, int direct, int type) {
        switch (type) {
            case 0://我们的坦克
                g.setColor(Color.cyan);
                break;
            case 1://敌人的坦克
                g.setColor(Color.yellow);
                break;
        }

        //根据坦克方向，绘制出坦克
        switch (direct) {
            case 0:
                g.fill3DRect(x, y, 10, 60, false);//左边轮子
                g.fill3DRect(x + 30, y, 10, 60, false);//右边轮子
                g.fill3DRect(x + 10, y + 10, 20, 40, false);//坦克盖子
                g.fillOval(x + 10, y + 20, 20, 20);//圆形盖子
                g.drawLine(x + 20, y + 30, x + 20, y);//炮筒
                break;
            case 1://表示向右
                g.fill3DRect(x, y, 60, 10, false);//左边轮子
                g.fill3DRect(x, y + 30, 60, 10, false);//右边轮子
                g.fill3DRect(x + 10, y + 10, 40, 20, false);//坦克盖子
                g.fillOval(x + 20, y + 10, 20, 20);//圆形盖子
                g.drawLine(x + 30, y + 20, x + 60, y + 20);//炮筒
                break;
            case 2://表示向下
                g.fill3DRect(x, y, 10, 60, false);//左边轮子
                g.fill3DRect(x + 30, y, 10, 60, false);//右边轮子
                g.fill3DRect(x + 10, y + 10, 20, 40, false);//坦克盖子
                g.fillOval(x + 10, y + 20, 20, 20);//圆形盖子
                g.drawLine(x + 20, y + 30, x + 20, y + 60);//炮筒
                break;
            case 3://表示向左
                g.fill3DRect(x, y, 60, 10, false);//左边轮子
                g.fill3DRect(x, y + 30, 60, 10, false);//右边轮子
                g.fill3DRect(x + 10, y + 10, 40, 20, false);//坦克盖子
                g.fillOval(x + 20, y + 10, 20, 20);//圆形盖子
                g.drawLine(x + 30, y + 20, x, y + 20);//炮筒
                break;
            default:
                System.out.println("暂时没有处理");
        }
    }

    public void hitEnemy() {
        for (int j = 0; j < hero.shots.size(); j++) {
            Shot shot = hero.shots.get(j);
            if (shot != null && shot.isLive) {//当我的子弹还存活
                //遍历所有坦克
                for (int i = 0; i < enemyTanks.size(); i++) {
                    EnemyTank enemyTank = enemyTanks.get(i);
                    hitTank(shot, enemyTank);
                }
            }
        }
    }

    //编写方法，判断我方坦克是否被敌人命中
    public void hitHero() {
        //遍历敌人所有坦克
        for (int i = 0; i < enemyTanks.size(); i++) {
            //取出敌人坦克
            EnemyTank enemyTank = enemyTanks.get(i);
            //取出enemyTank中的所有子弹
            for (int j = 0; j < enemyTank.shots.size(); j++) {
                Shot shot = enemyTank.shots.get(j);
                //判断shot是否击中我方坦克
                if (hero.isLive && shot.isLive) {
                    hitTank(shot, hero);
                }
            }
        }
    }

    //编写方法，判断我方的子弹是否击中敌人
    //什么时候判断我方子弹是否击中敌人坦克 Run方法
    public void hitTank(Shot s, Tank enemyTank) {
        //判断s 击中坦克
        switch (enemyTank.getDirect()) {
            case 0://坦克向上
            case 2://坦克向下
                if (s.x > enemyTank.getX() && s.x < enemyTank.getX() + 40
                        && s.y > enemyTank.getY() && s.y < enemyTank.getY() + 60) {
                    s.isLive = false;
                    enemyTank.isLive = false;
                    //创建一个Bomb对象放入bombs中
                    Bomb bomb = new Bomb(enemyTank.getX(), enemyTank.getY());
                    bombs.add(bomb);
                }
                break;
            case 1://坦克向右
            case 3://坦克向左
                if (s.x > enemyTank.getX() && s.x < enemyTank.getX() + 60
                        && s.y > enemyTank.getY() && s.y < enemyTank.getY() + 40) {
                    s.isLive = false;
                    enemyTank.isLive = false;
                    Bomb bomb = new Bomb(enemyTank.getX(), enemyTank.getY());
                    bombs.add(bomb);
                }
                break;
        }
    }

    @Override
    public void keyTyped(KeyEvent e) {

    }

    //处理wasd按下的情况
    @Override
    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_W) {
            //改变坦克方向
            hero.setDirect(0);
            if (hero.getY() > 0) {
                hero.moveUp();//上
            }
        } else if (e.getKeyCode() == KeyEvent.VK_D) {
            hero.setDirect(1);
            if (hero.getX() + 60 < 1000) {
                hero.moveRight();//右
            }
        } else if (e.getKeyCode() == KeyEvent.VK_S) {
            hero.setDirect(2);
            if (hero.getY() + 60 < 750) {
                hero.moveDown();//下
            }
        } else if (e.getKeyCode() == KeyEvent.VK_A) {
            hero.setDirect(3);
            if (hero.getX() > 0) {
                hero.moveLeft();//左
            }
        }

        //如果用户按下J键
        if (e.getKeyCode() == KeyEvent.VK_J) {
//            if (hero.shot == null || !hero.shot.isLive) {
//                hero.shotEnemyTank();
//            }
            //发射多颗子弹
            hero.shotEnemyTank();
        }
        //让面板重绘
        this.repaint();
    }

    @Override
    public void keyReleased(KeyEvent e) {

    }

    @Override
    public void run() {//每隔100毫秒，重绘
        while (true) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            //判断是否击中敌人
            hitEnemy();
            //判断敌人是否击中我们
            hitHero();
            this.repaint();
        }
    }
}

Recorder.java

package com.gqz.tankgame5;

import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.io.File;
import java.util.Vector;

/**
 * @author gqz
 * @version 1.0
 * 坦克大战的绘图区域
 */
public class MyPanel extends JPanel implements KeyListener, Runnable {
    //定义我的坦克
    Hero hero = null;
    //考虑到多线程，使用Vector来保存
    Vector<EnemyTank> enemyTanks = new Vector<>();
    //定义一个存放Node对象的Vector，用于回复敌人坦克的坐标和方向
    Vector<Node> nodes = new Vector<>();
    //定义Vector用于存放Bomb
    Vector<Bomb> bombs = new Vector<>();
    //敌方坦克数量
    int enemyTankSize = 3;

    //定义三张图片
    Image image1 = null;
    Image image2 = null;
    Image image3 = null;

    public MyPanel(String key) {
        //先判断文件是否存在
        //如果文件存在，就正常执行，不存在则开启新游戏，key = "1"
        File file = new File(Recorder.getFileRecord());
        if (file.exists()){
            nodes = Recorder.getNodesAndEnemyTankNum();
        } else{
            System.out.println("文件不存在，只能开启新游戏");
            key = "1";
        }

        //nodes = Recorder.getNodesAndEnemyTankNum();
        //将MyPanel对象的enemyTanks设置给Recorder的enemyTanks
        Recorder.setEnemyTanks(enemyTanks);
        hero = new Hero(500, 100);
        hero.setSpeed(2);
        switch (key){
            case "1":
                Recorder.setAllEnemyTankNum(0);
                //初始化敌人坦克
                for (int i = 0; i < enemyTankSize; i++) {
                    EnemyTank enemyTank = new EnemyTank(100 * (i + 1), 0);
                    //将enemyTanks设置给enemyTanks
                    enemyTank.setEnemyTanks(enemyTanks);
                    enemyTank.setSpeed(2);
                    //初始炮筒方向设置
                    enemyTank.setDirect(2);
                    //启动敌人坦克线程，让它动起来
                    Thread thread = new Thread(enemyTank);
                    thread.start();
                    //加一颗子弹
                    Shot shot = new Shot(enemyTank.getX() + 20, enemyTank.getY() + 60, enemyTank.getDirect());
                    //加入enemyTank的Vector
                    enemyTank.shots.add(shot);
                    //启动shot对象
                    new Thread(shot).start();
                    enemyTanks.add(enemyTank);
                }
                break;
            case "2":
                //初始化敌人坦克
                for (int i = 0; i < nodes.size(); i++) {
                    EnemyTank enemyTank = new EnemyTank(nodes.get(i).getX(),
                            nodes.get(i).getY());
                    //将enemyTanks设置给enemyTanks
                    enemyTank.setEnemyTanks(enemyTanks);
                    enemyTank.setSpeed(2);
                    //初始炮筒方向设置
                    enemyTank.setDirect(nodes.get(i).getDirect());
                    //启动敌人坦克线程，让它动起来
                    Thread thread = new Thread(enemyTank);
                    thread.start();
                    //加一颗子弹
                    Shot shot = new Shot(enemyTank.getX() + 20, enemyTank.getY() + 60, enemyTank.getDirect());
                    //加入enemyTank的Vector
                    enemyTank.shots.add(shot);
                    //启动shot对象
                    new Thread(shot).start();
                    enemyTanks.add(enemyTank);
                }
                break;
            default:
                System.out.println("输入错误");
        }

        //初始化图片对象
        image1 = Toolkit.getDefaultToolkit().getImage(
                Panel.class.getResource("/bomb_1.gif"));
        image2 = Toolkit.getDefaultToolkit().getImage(
                Panel.class.getResource("/bomb_2.gif"));
        image3 = Toolkit.getDefaultToolkit().getImage(
                Panel.class.getResource("/bomb_3.gif"));


        new AePlayWave("src\\111.wav").start();
    }

    //编写方法，显示我方击毁敌方坦克数量
    public void showInfo(Graphics g){
        //画出玩家总成绩
        g.setColor(Color.BLACK);
        Font font = new Font("宋体", Font.BOLD, 25);
        g.setFont(font);
        g.drawString("您累计击毁敌方坦克数量",1020,30);
        drawTank(1020,60,g,0,0);//画出一个敌方坦克
        g.setColor(Color.BLACK);
        g.drawString(Recorder.getAllEnemyTankNum() + "",1080,100);
    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);
        g.fillRect(0, 0, 1000, 750);//填充矩形，默认黑色

        showInfo(g);
        //画出坦克，封装方法
        if (hero != null && hero.isLive) {
            drawTank(hero.getX(), hero.getY(), g, hero.getDirect(), 1);
        }

//        //画出Hero射击的子弹
//        if (hero.shot != null && hero.shot.isLive == true) {
//            g.fill3DRect(hero.shot.x, hero.shot.y, 2, 2, false);
//        }
        //将hero的子弹集合遍历取出绘制
        for (int i = 0; i < hero.shots.size(); i++) {
            Shot shot = hero.shots.get(i);
            if (shot != null && shot.isLive == true) {
                g.fill3DRect(shot.x, shot.y, 2, 2, false);
            } else {//如果shot已经无效，则拿掉
                hero.shots.remove(shot);
            }
        }

        //如果bombs集合中有对象，就画出
        for (int i = 0; i < bombs.size(); i++) {
            //取出炸弹
            Bomb bomb = bombs.get(i);
            //根据当前对象的life值画出对应的图片
            if (bomb.life > 6) {
                g.drawImage(image1, bomb.x, bomb.y, 60, 60, this);
            } else if (bomb.life > 3) {
                g.drawImage(image2, bomb.x, bomb.y, 60, 60, this);
            } else {
                g.drawImage(image3, bomb.x, bomb.y, 60, 60, this);
            }
            //让炸弹的生命值减少
            bomb.lifeDown();
            //如果bomb life为0
            if (bomb.life == 0) {
                bombs.remove(bomb);
            }
        }

        //画出敌人的坦克
        for (int i = 0; i < enemyTanks.size(); i++) {
            //从Vector中取出坦克
            EnemyTank enemyTank = enemyTanks.get(i);
            //判断当前坦克是否还存活
            if (enemyTank.isLive) {//当敌人坦克存活才画出坦克
                //画出坦克
                drawTank(enemyTank.getX(), enemyTank.getY(), g, enemyTank.getDirect(), 0);
                //画出enemyTank的子弹
                for (int j = 0; j < enemyTank.shots.size(); j++) {
                    //取出子弹
                    Shot shot = enemyTank.shots.get(j);
                    //绘制
                    if (shot.isLive) {
                        g.fill3DRect(shot.x, shot.y, 2, 2, false);
                    } else {
                        //从Vector移除
                        enemyTank.shots.remove(shot);
                    }
                }
            } else {//不一样的地方，老韩在hitTank里面写了移除
                enemyTanks.remove(i);
                Recorder.addAllEnemyTankNum();
            }
        }
    }


    /**
     * g 画笔
     * direct 坦克方向（上下左右）
     * type 坦克类型
     */
    //编写方法，绘制坦克
    public void drawTank(int x, int y, Graphics g, int direct, int type) {
        switch (type) {
            case 0://我们的坦克
                g.setColor(Color.cyan);
                break;
            case 1://敌人的坦克
                g.setColor(Color.yellow);
                break;
        }

        //根据坦克方向，绘制出坦克
        switch (direct) {
            case 0:
                g.fill3DRect(x, y, 10, 60, false);//左边轮子
                g.fill3DRect(x + 30, y, 10, 60, false);//右边轮子
                g.fill3DRect(x + 10, y + 10, 20, 40, false);//坦克盖子
                g.fillOval(x + 10, y + 20, 20, 20);//圆形盖子
                g.drawLine(x + 20, y + 30, x + 20, y);//炮筒
                break;
            case 1://表示向右
                g.fill3DRect(x, y, 60, 10, false);//左边轮子
                g.fill3DRect(x, y + 30, 60, 10, false);//右边轮子
                g.fill3DRect(x + 10, y + 10, 40, 20, false);//坦克盖子
                g.fillOval(x + 20, y + 10, 20, 20);//圆形盖子
                g.drawLine(x + 30, y + 20, x + 60, y + 20);//炮筒
                break;
            case 2://表示向下
                g.fill3DRect(x, y, 10, 60, false);//左边轮子
                g.fill3DRect(x + 30, y, 10, 60, false);//右边轮子
                g.fill3DRect(x + 10, y + 10, 20, 40, false);//坦克盖子
                g.fillOval(x + 10, y + 20, 20, 20);//圆形盖子
                g.drawLine(x + 20, y + 30, x + 20, y + 60);//炮筒
                break;
            case 3://表示向左
                g.fill3DRect(x, y, 60, 10, false);//左边轮子
                g.fill3DRect(x, y + 30, 60, 10, false);//右边轮子
                g.fill3DRect(x + 10, y + 10, 40, 20, false);//坦克盖子
                g.fillOval(x + 20, y + 10, 20, 20);//圆形盖子
                g.drawLine(x + 30, y + 20, x, y + 20);//炮筒
                break;
            default:
                System.out.println("暂时没有处理");
        }
    }

    public void hitEnemy() {
        for (int j = 0; j < hero.shots.size(); j++) {
            Shot shot = hero.shots.get(j);
            if (shot != null && shot.isLive) {//当我的子弹还存活
                //遍历所有坦克
                for (int i = 0; i < enemyTanks.size(); i++) {
                    EnemyTank enemyTank = enemyTanks.get(i);
                    hitTank(shot, enemyTank);
                }
            }
        }
    }

    //编写方法，判断我方坦克是否被敌人命中
    public void hitHero() {
        //遍历敌人所有坦克
        for (int i = 0; i < enemyTanks.size(); i++) {
            //取出敌人坦克
            EnemyTank enemyTank = enemyTanks.get(i);
            //取出enemyTank中的所有子弹
            for (int j = 0; j < enemyTank.shots.size(); j++) {
                Shot shot = enemyTank.shots.get(j);
                //判断shot是否击中我方坦克
                if (hero.isLive && shot.isLive) {
                    hitTank(shot, hero);
                }
            }
        }
    }

    //编写方法，判断我方的子弹是否击中敌人
    //什么时候判断我方子弹是否击中敌人坦克 Run方法
    public void hitTank(Shot s, Tank enemyTank) {
        //判断s 击中坦克
        switch (enemyTank.getDirect()) {
            case 0://坦克向上
            case 2://坦克向下
                if (s.x > enemyTank.getX() && s.x < enemyTank.getX() + 40
                        && s.y > enemyTank.getY() && s.y < enemyTank.getY() + 60) {
                    s.isLive = false;
                    enemyTank.isLive = false;
                    //创建一个Bomb对象放入bombs中
                    Bomb bomb = new Bomb(enemyTank.getX(), enemyTank.getY());
                    bombs.add(bomb);
                }
                break;
            case 1://坦克向右
            case 3://坦克向左
                if (s.x > enemyTank.getX() && s.x < enemyTank.getX() + 60
                        && s.y > enemyTank.getY() && s.y < enemyTank.getY() + 40) {
                    s.isLive = false;
                    enemyTank.isLive = false;
                    Bomb bomb = new Bomb(enemyTank.getX(), enemyTank.getY());
                    bombs.add(bomb);
                }
                break;
        }
    }

    @Override
    public void keyTyped(KeyEvent e) {

    }

    //处理wasd按下的情况
    @Override
    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_W) {
            //改变坦克方向
            hero.setDirect(0);
            if (hero.getY() > 0) {
                hero.moveUp();//上
            }
        } else if (e.getKeyCode() == KeyEvent.VK_D) {
            hero.setDirect(1);
            if (hero.getX() + 60 < 1000) {
                hero.moveRight();//右
            }
        } else if (e.getKeyCode() == KeyEvent.VK_S) {
            hero.setDirect(2);
            if (hero.getY() + 60 < 750) {
                hero.moveDown();//下
            }
        } else if (e.getKeyCode() == KeyEvent.VK_A) {
            hero.setDirect(3);
            if (hero.getX() > 0) {
                hero.moveLeft();//左
            }
        }

        //如果用户按下J键
        if (e.getKeyCode() == KeyEvent.VK_J) {
//            if (hero.shot == null || !hero.shot.isLive) {
//                hero.shotEnemyTank();
//            }
            //发射多颗子弹
            hero.shotEnemyTank();
        }
        //让面板重绘
        this.repaint();
    }

    @Override
    public void keyReleased(KeyEvent e) {

    }

    @Override
    public void run() {//每隔100毫秒，重绘
        while (true) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            //判断是否击中敌人
            hitEnemy();
            //判断敌人是否击中我们
            hitHero();
            this.repaint();
        }
    }
}

Node.java

package com.gqz.tankgame5;

/**
 * @author gqz
 * @version 1.0
 */
public class Node {
    private int x;
    private int y;
    private int direct;

    public Node(int x, int y, int direct) {
        this.x = x;
        this.y = y;
        this.direct = direct;
    }

    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 getDirect() {
        return direct;
    }

    public void setDirect(int direct) {
        this.direct = direct;
    }
}

总结

• 后续还有待优化的地方，比如设置生命值，墙体，游戏登陆等等，等以后再进行优化。
• 全程跟着课程加上自己的优化写出。代码还有些冗余，必然坦克重叠的碰撞判断，后续也会有优化。