import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class ZongziBattleGame extends JPanel {
    private static final long serialVersionUID = 1L;
    private static final int FRAME_WIDTH = 800; // 窗口寬度
    private static final int FRAME_HEIGHT = 600; // 窗口高度
    private static final int PLAYER_SIZE = 50; // 玩家大小
    private static final int ZONGZI_SIZE = 30; // 粽子大小
    private static final int ENEMY_SIZE = 40; // 敵人大小
    private int playerX; // 玩家橫坐標(biāo)
    private int playerY; // 玩家縱坐標(biāo)
    private int zongziX; // 粽子橫坐標(biāo)
    private int zongziY; // 粽子縱坐標(biāo)
    private int enemyX; // 敵人橫坐標(biāo)
    private int enemyY; // 敵人縱坐標(biāo)
    private int score; // 得分
    private int life; // 生命值
    public ZongziBattleGame() {
        playerX = FRAME_WIDTH / 2;
        playerY = FRAME_HEIGHT - PLAYER_SIZE;
        resetZongzi();
        resetEnemy();
        score = 0;
        life = 3;
        addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                int key = e.getKeyCode();
                if (key == KeyEvent.VK_LEFT && playerX > 0) {
                    playerX -= 5;
                } else if (key == KeyEvent.VK_RIGHT && playerX < FRAME_WIDTH - PLAYER_SIZE) {
                    playerX += 5;
                } else if (key == KeyEvent.VK_SPACE) {
                    // 射箭
                    shootArrow();
                }
            }
        });
        setFocusable(true);
    }
    private void resetZongzi() {
        zongziX = (int) (Math.random() * (FRAME_WIDTH - ZONGZI_SIZE));
        zongziY = 0;
    }
    private void resetEnemy() {
        enemyX = (int) (Math.random() * (FRAME_WIDTH - ENEMY_SIZE));
        enemyY = 0;
    }
    private void shootArrow() {
        if (Math.abs(playerX - zongziX) <= PLAYER_SIZE && Math.abs(playerY - zongziY) <= PLAYER_SIZE) {
            // 擊中粽子
            score += 10;
            resetZongzi();
        }
    }
    private void moveZongziAndEnemy() {
        if (zongziY >= FRAME_HEIGHT || enemyY >= FRAME_HEIGHT) {
            // 粽子或敵人超出窗口底部，重新生成
            resetZongzi();
            resetEnemy();
            if (life > 0) {
                life--;
            } else {
                // 生命值耗盡，游戲結(jié)束
                System.out.println("生命值耗盡，游戲結(jié)束！");
                System.exit(0);
            }
        }
        zongziY += 3;
        enemyY += 5;
    }
    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        // 繪制背景
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, FRAME_WIDTH, FRAME_HEIGHT);
        // 繪制玩家
        g.setColor(Color.BLUE);
        g.fillRect(playerX, playerY, PLAYER_SIZE, PLAYER_SIZE);
        // 繪制粽子
        g.setColor(Color.GREEN);
        g.fillOval(zongziX, zongziY, ZONGZI_SIZE, ZONGZI_SIZE);
        // 繪制敵人
        g.setColor(Color.RED);
        g.fillRect(enemyX, enemyY, ENEMY_SIZE, ENEMY_SIZE);
        // 繪制得分和生命值
        g.setColor(Color.BLACK);
        g.drawString("得分：" + score, 10, 20);
        g.drawString("生命值：" + life, 10, 40);
        moveZongziAndEnemy();
        // 刷新畫(huà)面
        repaint();
    }
    public static void main(String[] args) {
        JFrame frame = new JFrame("粽子大作戰(zhàn)");
        frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        ZongziBattleGame game = new ZongziBattleGame();
        frame.add(game);
        frame.setVisible(true);
    }
}