import java.util.Random;
import java.util.Scanner;

/**
 * 简单游戏示例 - 猜数字游戏
 * 这是一个展示Java基础编程能力的示例项目
 */
public class NumberGuessingGame {
    private Random random;
    private Scanner scanner;
    private int targetNumber;
    private int maxAttempts;
    private int currentAttempt;
    
    public NumberGuessingGame() {
        this.random = new Random();
        this.scanner = new Scanner(System.in);
        this.maxAttempts = 7;
        this.currentAttempt = 0;
    }
    
    /**
     * 初始化游戏
     */
    public void initializeGame() {
        targetNumber = random.nextInt(100) + 1; // 1-100之间的随机数
        currentAttempt = 0;
        System.out.println("🎮 欢迎来到猜数字游戏！");
        System.out.println("我已经想了一个1-100之间的数字，你有" + maxAttempts + "次机会来猜中它。");
        System.out.println("=================================");
    }
    
    /**
     * 获取玩家输入
     */
    public int getPlayerGuess() {
        System.out.print("请输入你的猜测 (1-100): ");
        
        while (true) {
            try {
                int guess = scanner.nextInt();
                if (guess < 1 || guess > 100) {
                    System.out.print("请输入1-100之间的数字: ");
                } else {
                    return guess;
                }
            } catch (Exception e) {
                System.out.print("请输入有效的数字: ");
                scanner.next(); // 清除无效输入
            }
        }
    }
    
    /**
     * 检查猜测结果
     */
    public boolean checkGuess(int guess) {
        currentAttempt++;
        
        if (guess == targetNumber) {
            System.out.println("🎉 恭喜！你猜对了！");
            System.out.println("你用了 " + currentAttempt + " 次机会。");
            return true;
        } else if (guess < targetNumber) {
            System.out.println("📈 太小了！试试更大的数字。");
            System.out.println("剩余机会: " + (maxAttempts - currentAttempt));
        } else {
            System.out.println("📉 太大了！试试更小的数字。");
            System.out.println("剩余机会: " + (maxAttempts - currentAttempt));
        }
        
        return false;
    }
    
    /**
     * 显示游戏结果
     */
    public void showResult(boolean won) {
        if (!won) {
            System.out.println("💔 游戏结束！正确的数字是: " + targetNumber);
        }
        
        System.out.println("=================================");
    }
    
    /**
     * 询问是否继续游戏
     */
    public boolean askToContinue() {
        System.out.print("是否再玩一次？(y/n): ");
        String response = scanner.next().toLowerCase();
        return response.equals("y") || response.equals("yes");
    }
    
    /**
     * 主游戏循环
     */
    public void playGame() {
        boolean playing = true;
        
        while (playing) {
            initializeGame();
            boolean won = false;
            
            while (currentAttempt < maxAttempts && !won) {
                int guess = getPlayerGuess();
                won = checkGuess(guess);
            }
            
            showResult(won);
            playing = askToContinue();
        }
        
        System.out.println("谢谢游玩！再见！👋");
    }
    
    /**
     * 主方法
     */
    public static void main(String[] args) {
        NumberGuessingGame game = new NumberGuessingGame();
        game.playGame();
    }
}