如何退出这个TicTacToe游戏循环？

Question

我正在尝试制作TicTacToe游戏，但我的代码中有些东西无效。我创建了一个名为TicTacToeGame的新类，我有source.cpp（主文件）。一切都很好，直到我做了一个循环来测试空间是否被占用。

从那时起，它要求我输入X的坐标。我给它一个答案，然后它要求我输入Y坐标。我给它一个答案;但是，它又要求一个Y坐标，如果我给他一个错误的输入，它会开始用这个问题向我发送垃圾邮件，或者告诉我，我引入了一个错误的输入。

我该怎么办？我想知道什么是错的。

TicTacToeGame.h

 #pragma once
    class TicTacToeGame
    {
    public:
    TicTacToeGame();

    void playGame();

    private:

    bool placeMarker(int x, int y, char currentPlayer);
    int getXCoord();
    int getYCoord();

    char board[3][3];

    // Clears the board
    void clearBoard();
    // Prints the board
    void printBoard();
    };

TicTacToe.cpp

    #include "TicTacToeGame.h"
    #include <iostream>

    using namespace std;

    TicTacToeGame::TicTacToeGame()
    {
        clearBoard();
    };

    void TicTacToeGame::playGame()
    {
       char player1 = 'X';
       char player2 = 'Y';

    char currentPlayer = 'X';
    bool isDone = false;

    int x, y;

    while (isDone == false) {

        printBoard();

        x = getXCoord();
        y = getYCoord();

        if (placeMarker(x, y, currentPlayer) == false) {
            cout << "That spot is occupied\n";
        }
        else
        {
            // Switch player so every player can put markers
            if (currentPlayer == player1) {
                currentPlayer = player2;
            }
            else
            {
                currentPlayer = player1;
            }
        }
    }
}



int TicTacToeGame::getXCoord()
{
    bool isInputBad = true;
    int x;

    while (isInputBad == true) {
        cout << "Enter the X coordinate: ";
        cin >> x;

        if (x < 1 || x > 3) {
            cout << "Invalid coordinate!\n";
        }
        else
        {
            isInputBad = false;
        }
    }
    return x - 1;
}

int TicTacToeGame::getYCoord()
{
    bool isInputBad = true;
    int y;

    while (isInputBad == true) {
        cout << "Enter the Y coordinate: ";
        cin >> y;
    }

    if (y < 1 || y > 3) {
        cout << "Invalid coordinate!\n";
    }
    else
    {
        isInputBad = false;
    }
    return y - 1;
}

bool TicTacToeGame::placeMarker(int x, int y, char currentPlayer)
{
    if (board[y][x] != ' ') {
        return false;
    }

    board[y][x] = currentPlayer;
    return true;
}

void TicTacToeGame::clearBoard()
{
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            board[i][j] = ' ';
        }
    }
}

void TicTacToeGame::printBoard()
{
    cout << endl;
    cout << " |1 2 3|\n";
    for (int i = 0; i < 3; i++) {
        cout << "--------\n";
        cout << i+1 << "|" << board[i][0] << "|" << board[i][1] << "|" << board[i][2] << "|\n";
    }
    cout << "--------\n";
}

source.cpp

#include "TicTacToeGame.h"
#include <iostream>

using namespace std;

int main()
{
    TicTacToeGame game;

    game.playGame();

    system("PAUSE");
    return 0;
}

Answer 1

你的while循环永远不会退出，

X Coord While Loop：

 while (isInputBad == true) {
        cout << "Enter the X coordinate: ";
        cin >> x;

        if (x < 1 || x > 3) {
            cout << "Invalid coordinate!\n";
        }
        else
        {
            isInputBad = false;
        }
    } // end of while loop

Y Coord While循环：

while (isInputBad == true) {
        cout << "Enter the Y coordinate: ";
        cin >> y;
    } // end of while loop

    if (y < 1 || y > 3) {
        cout << "Invalid coordinate!\n";
    }
    else
    {
        isInputBad = false;
    }

查看验证码如何在Y Coord的while循环之外？ while条件isInputBad将始终等于true，因为它将在循环后设置为false。

在if语句之后移动while循环的结尾，它应该可以工作。