java语言实现飞机大战

好的，下面是一个简单的Java实现飞机大战的示例代码，希望能够帮到您：

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import java.util.Random;

public class PlaneWar extends JFrame implements ActionListener, KeyListener {
    private Timer timer;
    private int score = 0;
    private ImageIcon bgImageIcon, playerImageIcon, enemyImageIcon, bulletImageIcon;
    private JLabel bgLabel, playerLabel, scoreLabel;
    private ArrayList<JLabel> enemyLabels, bulletLabels;

    public PlaneWar() {
        initUI();
        initGame();
    }

    private void initUI() {
        bgImageIcon = new ImageIcon(getClass().getResource("bg.jpg"));
        bgLabel = new JLabel(bgImageIcon);
        bgLabel.setBounds(0, 0, 400, 600);
        add(bgLabel);

        playerImageIcon = new ImageIcon(getClass().getResource("player.png"));
        playerLabel = new JLabel(playerImageIcon);
        playerLabel.setBounds(180, 500, 40, 40);
        bgLabel.add(playerLabel);

        scoreLabel = new JLabel("Score: " + score);
        scoreLabel.setBounds(10, 10, 100, 20);
        scoreLabel.setForeground(Color.WHITE);
        bgLabel.add(scoreLabel);

        enemyImageIcon = new ImageIcon(getClass().getResource("enemy.png"));
        enemyLabels = new ArrayList<>();

        bulletImageIcon = new ImageIcon(getClass().getResource("bullet.png"));
        bulletLabels = new ArrayList<>();

        setTitle("PlaneWar");
        setSize(400, 600);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setResizable(false);
        addKeyListener(this);
        setVisible(true);
    }

    private void initGame() {
        timer = new Timer(10, this);
        timer.start();
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        moveEnemy();
        moveBullet();
        checkCollisions();
    }

    private void moveEnemy() {
        Random random = new Random();
        if (random.nextInt(100) < 3) {
            JLabel enemyLabel = new JLabel(enemyImageIcon);
            enemyLabel.setBounds(random.nextInt(360), -50, 50, 50);
            bgLabel.add(enemyLabel);
            enemyLabels.add(enemyLabel);
        }

        for (int i = 0; i < enemyLabels.size(); i++) {
            JLabel enemyLabel = enemyLabels.get(i);
            enemyLabel.setLocation(enemyLabel.getX(), enemyLabel.getY() + 1);
            if (enemyLabel.getY() > 600) {
                bgLabel.remove(enemyLabel);
                enemyLabels.remove(enemyLabel);
            }
        }
    }

    private void moveBullet() {
        for (int i = 0; i < bulletLabels.size(); i++) {
            JLabel bulletLabel = bulletLabels.get(i);
            bulletLabel.setLocation(bulletLabel.getX(), bulletLabel.getY() - 3);
            if (bulletLabel.getY() < 0) {
                bgLabel.remove(bulletLabel);
                bulletLabels.remove(bulletLabel);
            }
        }
    }

    private void checkCollisions() {
        Rectangle playerRect = playerLabel.getBounds();
        for (int i = 0; i < enemyLabels.size(); i++) {
            JLabel enemyLabel = enemyLabels.get(i);
            Rectangle enemyRect = enemyLabel.getBounds();
            if (playerRect.intersects(enemyRect)) {
                gameOver();
            }

            for (int j = 0; j < bulletLabels.size(); j++) {
                JLabel bulletLabel = bulletLabels.get(j);
                Rectangle bulletRect = bulletLabel.getBounds();
                if (bulletRect.intersects(enemyRect)) {
                    score += 10;
                    scoreLabel.setText("Score: " + score);
                    bgLabel.remove(enemyLabel);
                    bgLabel.remove(bulletLabel);
                    enemyLabels.remove(enemyLabel);
                    bulletLabels.remove(bulletLabel);
                }
            }
        }
    }

    private void gameOver() {
        timer.stop();
        JOptionPane.showMessageDialog(this, "Game Over!\nYour score is " + score);
        System.exit(0);
    }

    @Override
    public void keyPressed(KeyEvent e) {
        int keyCode = e.getKeyCode();
        if (keyCode == KeyEvent.VK_UP && playerLabel.getY() > 0) {
            playerLabel.setLocation(playerLabel.getX(), playerLabel.getY() - 5);
        } else if (keyCode == KeyEvent.VK_DOWN && playerLabel.getY() < 560) {
            playerLabel.setLocation(playerLabel.getX(), playerLabel.getY() + 5);
        } else if (keyCode == KeyEvent.VK_LEFT && playerLabel.getX() > 0) {
            playerLabel.setLocation(playerLabel.getX() - 5, playerLabel.getY());
        } else if (keyCode == KeyEvent.VK_RIGHT && playerLabel.getX() < 360) {
            playerLabel.setLocation(playerLabel.getX() + 5, playerLabel.getY());
        } else if (keyCode == KeyEvent.VK_SPACE) {
            JLabel bulletLabel = new JLabel(bulletImageIcon);
            bulletLabel.setBounds(playerLabel.getX() + 17, playerLabel.getY() - 20, 6, 20);
            bgLabel.add(bulletLabel);
            bulletLabels.add(bulletLabel);
        }
    }

    @Override
    public void keyTyped(KeyEvent e) {}

    @Override
    public void keyReleased(KeyEvent e) {}
    
    public static void main(String[] args) {
        new PlaneWar();
    }
}

这是一个简单的飞机大战示例程序，实现了玩家飞机的移动、发射子弹、敌机的随机生成和移动、碰撞检测等功能。如果您需要更详细的解释，可以参考代码注释或者在评论区提出问题。