/*
需求：開發一個猜數字的小遊戲；
 * 描述：系統產生一個1-100之間的隨機數(含0和100），請猜出這個數字是多少。
     * 1.產生隨機數
     * 2.接收鍵盤輸入數字
     * 3.判斷大小，輸出結果。
     * 4.使用者一局最多7次猜的機會，猜不中則遊戲結束。
     * 4.每局遊戲結束後要能給出使用者選擇：再來一局還是結束遊戲。
*/

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

public class GuessNumOptimize {
    Scanner sc = new Scanner(System.in
 
);
    static int times = 6;

    public static void main(String[] args) {

        System.out.println("Hello, MZ. WLCOME HERE! ^_^ ");
        System.out.println("This is a game which invites you to guess a number between 1 and 100,include 1 and 100.");
        System.out.println("And you have at most "
 
 + times + "  times to try in each inning.");
        System.out.print("Press 1 to Start.  ");
        System.out.println("Press 2 to Quit. : ");

        Scanner sc = new Scanner(System.in);

        flag: while (true) {

            System.out.println("Please enter your choice :");
            int
 
 button = sc.nextInt();
            switch (button) {

            case 1:
                System.out.println("Start Now!");
                Random r = new Random();
                int answer = r.nextInt(100) + 1;

                // 產生隨機數，判斷答案,一局結束。
                judgeNum(answer);
                break;
            case 2:
                System.out.println("Game Over!");
                System.out.println("歡迎下次再來！");
                break flag;
            // System.exit(0);
            default:
                System.out.println("Are u kidding？");
                System.out.print("Press 1 to try again.  ");
                System.out.println("Press 2 to Quit. : ");
                break;
            }
        }
    }

// 定義判斷方法：judgeNum(int answer)
    public static void judgeNum(int answer) {

        for (int i = times; i >= 1; i--) {

            System.out.println("------------------------");
            System.out.println("Please enter your number:");
            Scanner sc = new Scanner(System.in);
            int enterNum = sc.nextInt();
            // 判斷大小
            if (enterNum > answer) {

                if (i == 1) {
                    System.out.println("很遺憾，你沒有機會了！");
                    endPrompt();
                    break;
                } else {
                    System.out.println("你猜大了，往小了猜試試？");
                    System.out.println("你還有" + (i - 1) + "次機會。加油！");
                }
            } else if (enterNum < answer) {

                if (i == 1 ) {
                    System.out.println("很遺憾，你沒有機會了！");
                    endPrompt();
                    break;
                } else {
                    System.out.println("你猜小了，往大了猜試試？");
                    System.out.println("你還有" + (i - 1) + "次機會。加油！");
                }
            } else {
                System.out.println("恭喜你，猜中啦。答案是：" + enterNum + "。");
                System.out.println("你用了" + (times - i +1) + "次就猜對了，好厲害！*^_^* ");
                endPrompt();
                break;
            }
        }
    }

//每局結束的提示語
public static void endPrompt(){
            System.out.println("再來一局？");
            System.out.println("Press 1 to Try Again.");
            System.out.println("Press 2 to Quit.");
    }