js-21点小游戏

21点游戏 分为人机对战和人人对战

玩家每次抽一张牌 牌的点数为1-10点随机数 谁更接近21点谁就获胜

let readline = require("readline-sync");

let clear = () => process.stdout.write(process.platform === 'win32' ? 'x1Bc' : 'x1B[2Jx1B[3Jx1B[H');

let takeCard = function (player) {
    let point = Math.floor(Math.random() * 10 + 1); 
    console.log(`你抽取到的点数为：${point}`);
    player.titlePoint += point;
}

let judge = function (player1, player2) {
    if (player1.titlePoint > player2.titlePoint) {
        return 1;
    }
    else if (player1.titlePoint < player2.titlePoint) {
        return 2;
    }
    else {
        return 0;
    }
}

let main = function () {
    let useSys = true;   
    while (useSys) {
        clear();
        console.log("欢迎来到21点的世界");
        console.log("请选择游戏选项：   1.单人模式     2.双人模式     3.游戏说明     4.退出游戏");
        let funcSelect = parseInt(readline.question(""));
        switch (funcSelect) {
            // 单人模式
            case 1:
                {
                   
                    let player = { victory: 0, titlePoint: 0 };
                    let computer = { victory: 0, titlePoint: 0 };
                    let continuePlay = true; // 是否继续单人模式
                    while (continuePlay) {
                        let isTakeCard = true;
                        
                        while (isTakeCard) {
                            clear();
                            console.log(`当前的总点数为：${player.titlePoint}`);
                            console.log("是否要抽取一张牌？(Y/N)");
                            let isTake = readline.question("");
                            switch (isTake) {
                                case "Y":
                                case "y":
                                    takeCard(player); 
                                   
                                    if (player.titlePoint > 21) {
                                        console.log("你已经爆炸了！");
                                        readline.question("");
                                        isTakeCard = false;
                                        break;
                                    }
                                    console.log("
按回车键继续");
                                    readline.question("");
                                    break;
                                case "N":
                                case "n":
                                    isTakeCard = false;
                                    break;
                                default:
                                    console.log("输入有误，请重新输入");
                                    readline.question("");
                            }
                        }
                       
                        if (player.titlePoint > 21) {
                            console.log("电脑获胜");
                            computer.victory++;
                        }
                        else {
                          
                            computer.titlePoint = Math.floor(Math.random() * 7 + 15); 
                            console.log(`你的总点数为${player.titlePoint}，电脑的总点数为${computer.titlePoint}`);
                            let result = judge(player, computer);
                         
                            switch (result) {
                                case 0:
                                    console.log("本局为平局，不加分");
                                    break;
                                case 1:
                                    console.log("玩家获胜");
                                    player.victory++;
                                    break;
                                case 2:
                                    console.log("电脑获胜");
                                    computer.victory++;
                                    break;
                            }
                        }
                        // 打印信息
                        console.log("
当前比分如下：");
                        console.log(`玩家:${player.victory} vs 电脑:${computer.victory}`);
                        readline.question("");
                        
                        while (true) {
                            console.log("是否继续游戏？(Y/N)");
                            let isAgain = readline.question("");
                           
                            if (isAgain === 'Y' || isAgain === 'y') {
                                player.titlePoint = 0;
                                computer.titlePoint = 0;
                                break;
                            }
                            else if (isAgain === 'N' || isAgain === 'n') {
                                continuePlay = false;
                                break;
                            }
                            else {
                                console.log("输入有误，请重新输入
");
                            }
                        }
                    }
                    
                    clear();
                    console.log("最终比分如下：");
                    console.log(`玩家:${player.victory} vs 电脑:${computer.victory}`);
                    console.log("
按回车键返回");
                    readline.question("");
                }
                break;
            // 双人模式
            case 2:
                {
                  
                    let player1 = { victory: 0, titlePoint: 0, isTakeCard: true };
                    let player2 = { victory: 0, titlePoint: 0, isTakeCard: true };
                    
                    let continuePlay = true;
                    while (continuePlay) {
                       
                        while (player1.isTakeCard || player2.isTakeCard) {
                           
                            if (player1.isTakeCard) {
                                let inputValidate = true;
                                while (inputValidate) {
                                    clear();
                                    
                                    console.log("总点数：")
                                    console.log(`玩家A:${player1.titlePoint}   vs   玩家B:${player2.titlePoint}`);
                                    console.log("玩家A 是否抽牌？(Y/N)");
                                    let isTake = readline.question("");
                                    switch (isTake) {
                                        case "Y":
                                        case "y":
                                            inputValidate = false; 
                                            takeCard(player1); 
                                            readline.question("");
                                          
                                            if (player1.titlePoint > 21) {
                                                player1.isTakeCard = false;
                                                player2.isTakeCard = false;
                                            }
                                            break;
                                        case "N":
                                        case "n":
                                        
                                            inputValidate = false;
                                            player1.isTakeCard = false;
                                            break;
                                        default:
                                            console.log("输入有误，请重新输入");
                                            readline.question("");
                                    }
                                }
                            }
                          
                            if (player2.isTakeCard) {
                                let inputValidate = true;
                                while (inputValidate) {
                                    clear();
                                    console.log("总点数：")
                                    console.log(`玩家A:${player1.titlePoint}   vs   玩家B:${player2.titlePoint}`);
                                    console.log("玩家B 是否抽牌？(Y/N)");
                                    let isTake = readline.question("");
                                    switch (isTake) {
                                        case "Y":
                                        case "y":
                                            inputValidate = false;
                                            takeCard(player2);
                                            readline.question("");
                                            if (player2.titlePoint > 21) {
                                                player1.isTakeCard = false;
                                                player2.isTakeCard = false;
                                            }
                                            break;
                                        case "N":
                                        case "n":
                                            inputValidate = false;
                                            player2.isTakeCard = false;
                                            break;
                                        default:
                                            console.log("输入有误，请重新输入");
                                            readline.question("");
                                    }
                                }
                            }
                        }
                        
                        if (player1.titlePoint > 21) {
                            console.log("玩家A已爆炸！");
                            console.log("玩家B获胜");
                            player2.victory++;

                        }
                        else if (player2.titlePoint > 21) {
                            console.log("玩家B已爆炸！");
                            console.log("玩家A获胜");
                            player1.victory++;
                        }
                        else {
                            let result = judge(player1, player2);
                            switch (result) {
                                case 0:
                                    console.log("本局为平局，不加分");
                                    break;
                                case 1:
                                    console.log("玩家A获胜");
                                    player1.victory++;
                                    break;
                                case 2:
                                    console.log("玩家B获胜");
                                    player2.victory++;
                                    break;
                            }
                        }
                        console.log("
当前比分如下：");
                        console.log(`玩家A:${player1.victory}   vs   玩家B:${player2.victory}`);
                        readline.question("");
                        while (true) {
                            console.log("是否继续游戏？(Y/N)");
                            let isAgain = readline.question("");
                            if (isAgain === 'Y' || isAgain === 'y') {
                                player1.titlePoint = 0;
                                player2.titlePoint = 0;
                                player1.isTakeCard = true;
                                player2.isTakeCard = true;
                                break;
                            }
                            else if (isAgain === 'N' || isAgain === 'n') {
                                continuePlay = false;
                                break;
                            }
                            else {
                                console.log("输入有误，请重新输入
");
                            }
                        }
                    }
                    clear();
                    console.log("最终比分如下：");
                    console.log(`玩家A:${player1.victory}   vs   玩家B:${player2.victory}`);
                    console.log("
按回车键返回");
                    readline.question("");
                }
                break;
            // 游戏说明
            case 3:
                {
                    clear();
                    console.log("单人模式规则：");
                    console.log("单人模式下玩家可以连续抽牌，每回合抽取的点数为1-10点中任意一个点数");
                    console.log("所有点数相加不能超过21点，然后总点数和电脑点数进行比较，谁更接近21点谁就算胜利
");
                    console.log("双人模式规则：");
                    console.log("两名玩家轮流抽牌，在不超过21点的前提下进行总点数的比较，谁更接近21点谁就算胜利
");
                    console.log("按回车键返回");
                    readline.question("");
                }
                break;
          
            case 4:
                {
                  
                    useSys = false;
                }
                break;
        }
    }
    clear();
    console.log("Thank you for playing");
}
main();