带随机硬币翻转的井字游戏

Question

来自 class 的家庭作业问题：我必须生成一个井字游戏，该游戏使用掷硬币来确定谁先走。我已经生成了我的大部分代码，但仍有几个 things/bugs 我无法理解。

我会抛硬币。但是，如何让程序选择谁先走。
获胜方格或游戏结束方格上没有 X 或 O。
平局没有消息。

不输入任何值直接按回车没有消息。

#include "pch.h"
#include <iostream>
#include <string>
#include <cstdlib>
#include <time.h>


using namespace std;

void Flip_Coin();
void Do_Exercise();
void Display_Board();
void Ask_Turn();
char Check_Winner();
void Computer_Player_Turn();

char Board[3][3] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' };

int n = 0;

int main()
{
    srand(time(0));

    Do_Exercise();

    cin.get();

    return 0;
}

void Do_Exercise()
{
    Flip_Coin();
    while (true)
    {
        n++;
        Display_Board();
        Ask_Turn();
        if (Check_Winner() == 'X')
        {
            cout << "Human Wins!" << endl;
            break;
        }
        else if (Check_Winner() == 'O')
        {
            cout << "Computer Wins!" << endl;
            break;
        }
        else if (Check_Winner() == 'T' && n == 9)
        {

            cout << "It's a draw." << endl;
            break;
        }
        Computer_Player_Turn();
        if (Check_Winner() == 'X')
        {
            cout << "Human Wins!" << endl;
            break;
        }
        else if (Check_Winner() == 'O')
        {
            cout << "Computer Wins!" << endl;
            break;
        }
        else if (Check_Winner() == 'T' && n == 9)
        {

            cout << "It's a draw." << endl;
            break;
        }
    }
}

void Flip_Coin()
{
    int Flip;

    cout << "Welcome to Tic - Tac - toe.\n\n"
        << "Wait I am flipping a coin to see who goes first . . .\n\n";

    Flip = rand() % 2;

    if (Flip == 0)
    {
        cout << "Computer wins coin toss.\n\n";
    }
    else
    {
        cout << "Human wins coin toss.\n\n";
    }
    cout << "The board is laid out like this:\n\n";
}

void Display_Board()
{
    for (int Row = 0; Row < 3; Row++)
    {
        for (int Column = 0; Column < 3; Column++)
        {
            cout << Board[Row][Column] << "\t";
        }
        cout << "\n\n";
    }
}

void Ask_Turn()
{
    string input;

    while (true)
    {
        cout << "Enter the position to place your X: ";
        cin >> input;
        cout << endl;

        if (input != "")
        {
            char entered = input.c_str()[0]; // sets char character to act in place of string

            if (entered >= '1' && entered <= '9')
            {
                cout << "The human places a X-token at position: " << entered << "\n\n";
                cout << "Current board:\n\n";
                int entered_number = entered - '0'; // changes char to int form
                int index = entered_number - 1;

                int row = index / 3;
                int col = index % 3;

                char grid_position = Board[row][col];

                if (grid_position == 'X' || grid_position == 'O')
                {
                    cout << "That position is already taken. ";
                }
                else {
                    Board[row][col] = 'X';
                    break;
                }
            }
            else {
                cout << "You must entered in the the range of 1-9.\n";
            }
        }
        else {
            cout << "You must enter something!"; // doesnt work
        }
    }
}

char Check_Winner()
{
    //first player
    if (Board[0][0] == 'X' && Board[0][1] == 'X' && Board[0][2] == 'X')
        return 'X';
    if (Board[1][0] == 'X' && Board[1][1] == 'X' && Board[1][2] == 'X')
        return 'X';
    if (Board[2][0] == 'X' && Board[2][1] == 'X' && Board[2][2] == 'X')
        return 'X';

    if (Board[0][0] == 'X' && Board[1][0] == 'X' && Board[2][0] == 'X')
        return 'X';
    if (Board[0][1] == 'X' && Board[1][1] == 'X' && Board[2][1] == 'X')
        return 'X';
    if (Board[0][2] == 'X' && Board[1][2] == 'X' && Board[2][2] == 'X')
        return 'X';

    if (Board[0][0] == 'X' && Board[1][1] == 'X' && Board[2][2] == 'X')
        return 'X';
    if (Board[2][0] == 'X' && Board[1][1] == 'X' && Board[0][2] == 'X')
        return 'X';

    //second player
    if (Board[0][0] == 'O' && Board[0][1] == 'O' && Board[0][2] == 'O')
        return 'O';
    if (Board[1][0] == 'O' && Board[1][1] == 'O' && Board[1][2] == 'O')
        return 'O';
    if (Board[2][0] == 'O' && Board[2][1] == 'O' && Board[2][2] == 'O')
        return 'O';

    if (Board[0][0] == 'O' && Board[1][0] == 'O' && Board[2][0] == 'O')
        return 'O';
    if (Board[0][1] == 'O' && Board[1][1] == 'O' && Board[2][1] == 'O')
        return 'O';
    if (Board[0][2] == 'O' && Board[1][2] == 'O' && Board[2][2] == 'O')
        return 'O';

    if (Board[0][0] == 'O' && Board[1][1] == 'O' && Board[2][2] == 'O')
        return 'O';
    if (Board[2][0] == 'O' && Board[1][1] == 'O' && Board[0][2] == 'O')
        return 'O';

    return 'T';
}

void Computer_Player_Turn()
{
    while (true)
    {
        int computer_choice = (rand() % 9) + 1;

        int row = (computer_choice - 1) / 3;
        int col = (computer_choice - 1) % 3;

        char grid_position = Board[row][col];

        if (grid_position == 'X' || grid_position == 'O')
        {
            continue;
        }
        else {
            cout << "The Computer places a O-token at position: " << computer_choice << "\n\n";
            Board[row][col] = 'O';
            break;
        }
    }
}

Answer 1

这是解决方案。

1) 现在您已经硬编码为先调用 Ask_Turn 然后再调用 Computer_Player_Turn。不要这样调用它们，而是先从抛硬币调用它们，然后让两个函数在完成时相互调用。

2) 在检查获胜者之前致电 Display_Board()。

3) 已修复。您每 2 回合只将 n 加 1。

4) 在while循环中求输入，只要输入为空就在循环中

因此，进行所有这些更改后，代码应类似于以下内容。

我已经测试了这里的代码，https://onlinegdb.com/S1Qdcr63X

#include <iostream>
#include <string>
#include <cstdlib>
#include <time.h>


using namespace std;

void Flip_Coin();
void Do_Exercise();
void Display_Board();
void Ask_Turn();
char Check_Winner();
void Computer_Player_Turn();

char Board[3][3] = { '1', '2', '3', '4', '5', '6', '7', '8', '9' };

int n = 0;

void Computer_Player_Turn();
void Ask_Turn();

int main()
{
    srand(time(0));

    Do_Exercise();

    cin.get();

    return 0;
}

void Do_Exercise()
{
    Flip_Coin();
}

void Flip_Coin()
{
    int Flip;

    cout << "Welcome to Tic - Tac - toe.\n\n"
        << "Wait I am flipping a coin to see who goes first . . .\n\n";

    Flip = rand() % 2;

    if (Flip == 0)
    {
        cout << "Computer wins coin toss.\n\n";
        Computer_Player_Turn();
    }
    else
    {
        cout << "Human wins coin toss.\n\n";
        Ask_Turn();
    }
}

void Display_Board()
{
    for (int Row = 0; Row < 3; Row++)
    {
        for (int Column = 0; Column < 3; Column++)
        {
            cout << Board[Row][Column] << "\t";
        }
        cout << "\n\n";
    }
}


char Check_Winner()
{
    //first player
    if (Board[0][0] == 'X' && Board[0][1] == 'X' && Board[0][2] == 'X')
        return 'X';
    if (Board[1][0] == 'X' && Board[1][1] == 'X' && Board[1][2] == 'X')
        return 'X';
    if (Board[2][0] == 'X' && Board[2][1] == 'X' && Board[2][2] == 'X')
        return 'X';

    if (Board[0][0] == 'X' && Board[1][0] == 'X' && Board[2][0] == 'X')
        return 'X';
    if (Board[0][1] == 'X' && Board[1][1] == 'X' && Board[2][1] == 'X')
        return 'X';
    if (Board[0][2] == 'X' && Board[1][2] == 'X' && Board[2][2] == 'X')
        return 'X';

    if (Board[0][0] == 'X' && Board[1][1] == 'X' && Board[2][2] == 'X')
        return 'X';
    if (Board[2][0] == 'X' && Board[1][1] == 'X' && Board[0][2] == 'X')
        return 'X';

    //second player
    if (Board[0][0] == 'O' && Board[0][1] == 'O' && Board[0][2] == 'O')
        return 'O';
    if (Board[1][0] == 'O' && Board[1][1] == 'O' && Board[1][2] == 'O')
        return 'O';
    if (Board[2][0] == 'O' && Board[2][1] == 'O' && Board[2][2] == 'O')
        return 'O';

    if (Board[0][0] == 'O' && Board[1][0] == 'O' && Board[2][0] == 'O')
        return 'O';
    if (Board[0][1] == 'O' && Board[1][1] == 'O' && Board[2][1] == 'O')
        return 'O';
    if (Board[0][2] == 'O' && Board[1][2] == 'O' && Board[2][2] == 'O')
        return 'O';

    if (Board[0][0] == 'O' && Board[1][1] == 'O' && Board[2][2] == 'O')
        return 'O';
    if (Board[2][0] == 'O' && Board[1][1] == 'O' && Board[0][2] == 'O')
        return 'O';

    return 'T';
}

bool winner()
{
    if (Check_Winner() == 'X')
    {
        cout << "Human Wins!" << endl;
        return true;
    }
    else if (Check_Winner() == 'O')
    {
        cout << "Computer Wins!" << endl;
        return true;
    }
    else if (Check_Winner() == 'T' && n == 9)
    {

        cout << "It's a draw." << endl;
        return true;
    }
    return false;
}

void Ask_Turn()
{
    n++;

    string input = "";

    while (true)
    {
        do
        {
            cout << "Enter the position to place your X: ";
            cin >> input;
            cout << endl;
        }
        while(input == ""  || (input.c_str()[0] < '1' || input.c_str()[0] > '9'));


        char entered = input.c_str()[0]; // sets char character to act in place of string

        cout << "The human places a X-token at position: " << entered << "\n\n";
        cout << "Current board:\n\n";
        int entered_number = entered - '0'; // changes char to int form
        int index = entered_number - 1;

        int row = index / 3;
        int col = index % 3;

        char grid_position = Board[row][col];

        if (grid_position == 'X' || grid_position == 'O')
        {
            cout << "That position is already taken. ";
            n--;
            Ask_Turn();
        }
        else {
            Board[row][col] = 'X';
            break;
        }
    }


    Display_Board();

    if(winner())
        return;
    else
     Computer_Player_Turn();
}

void Computer_Player_Turn()
{
    n++;
    while (true)
    {
        int computer_choice = (rand() % 9) + 1;

        int row = (computer_choice - 1) / 3;
        int col = (computer_choice - 1) % 3;

        char grid_position = Board[row][col];

        if (grid_position == 'X' || grid_position == 'O')
        {
            continue;
        }
        else {
            cout << "The Computer places a O-token at position: " << computer_choice << "\n\n";
            Board[row][col] = 'O';
            break;
        }
    }

    Display_Board();

    if(winner())
        return;
    else
        Ask_Turn();
}

带随机硬币翻转的井字游戏

Tic Tac Toe with Random coin flip

c++

tic-tac-toe