掷骰子游戏

Question

我试图要求用户输入y或n，游戏将退出或继续。 我还想显示总的赢和输和用户退出。 也许我没有真正了解布尔值并返回函数中的内容？

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <stdbool.h>

int rollDice(void);
bool playGame(void);

int main(void)
{
    srand((unsigned)(time(NULL)));
    char userInput;
    while (true)
    {
        playGame();
        printf("Would you like to play again?");
        scanf("%c", &userInput);
        if (userInput == 'n' || userInput == 'N')
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    return 0;
}
int rollDice(void)
{

    int dice1 = rand()%6+1;
    int dice2 = rand()%6+1;
    int totaldice = dice1 + dice2;

    return totaldice;
}
bool playGame(void)
{
    int point, total;
    int winCounter, looseCounter;
    printf("The game is starting!\n");
    total = rollDice();
    printf("You rolled: %d\n", total);
    if (total == 7 || total == 11)
    {

        printf("Wow it's your lucky day! You Win!\n");
        winCounter++;

    }
    else if (total == 2 || total == 3 || total == 12)
    {
        printf("Unlucky! You Loose!\n");
        looseCounter++;
    }
    else {
        point = total;
        printf("Your Point is: %d\n", point);
        while (true)
        {
            total = rollDice();
            printf("You rolled: %d\n", total);
            if (total == point)
            {
                printf("You made your point! You Win!\n");
                winCounter++;
                break;
            }
            else if (total == 7)
            {
                printf("Thats a %d. You Loose!\n", total);
                looseCounter++;
                break;
            }
        }

    }return true;
}

Answer 1

您的主要问题是，如果用户输入的内容与'n'或'N'不同，则使用return指令终止该主程序， return其删除并继续循环。

如果您使用布尔变量退出while循环，那就更好了：

int main(void)
{
    srand((unsigned)(time(NULL)));
    char userInput;

    bool paygame = true;

    while (paygame)
    {
        playGame();
        printf("Would you like to play again?");
        scanf(" %c", &userInput);

        printf ("Test: %c\n", userInput);
        if (userInput == 'n' || userInput == 'N')
        {
            paygame = false;
        }
    }
    return 0;
}

第二个大问题是游戏功能的计数器：必须将它们初始化为0。

int winCounter = 0, looseCounter = 0;

否则，计数从随机数开始。

如果您想计算所有玩过的游戏的全部胜负，则可以简单地使用静态变量：

bool playGame(void)
{
    int point, total;
    static int winCounter = 0, looseCounter = 0;
    printf("The game is starting!\n");
    total = rollDice();
    printf("You rolled: %d\n", total);
    if (total == 7 || total == 11)
    {

        printf("Wow it's your lucky day! You Win!\n");
        winCounter++;

    }
    else if (total == 2 || total == 3 || total == 12)
    {
        printf("Unlucky! You Loose!\n");
        looseCounter++;
    }
    else {
        point = total;
        printf("Your Point is: %d\n", point);
        while (true)
        {
            total = rollDice();
            printf("You rolled: %d\n", total);
            if (total == point)
            {
                printf("You made your point! You Win!\n");
                winCounter++;
                break;
            }
            else if (total == 7)
            {
                printf("Thats a %d. You Loose!\n", total);
                looseCounter++;
                break;
            }
        }

    }

    printf ("Won: %d - Lose: %d\n", winCounter, looseCounter);

    return true;
}

最后，将scanf格式说明符更改为" %c"以允许scanf在用户每次输入后“刷新”换行符'\\n' n'char到stdin 。

Answer 2

不要在while循环中使用return。 而是使用变量并将其用于条件。 也不需要将其设置为true，因为直到您按下n或N时，条件一直为true

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <stdbool.h>

int rollDice(void);
bool playGame(void);

int main(void)
{
    srand((unsigned)(time(NULL)));
    char userInput;
    bool again = true;
    while (again==true)
    {
        printf("Would you like to play again?");
        scanf("%c", &userInput);
        if (userInput == 'n' || userInput == 'N')
        {
            again = false;
        }
    }
    return 0;
}

Answer 3

如果要在用户退出后显示总计，则需要将其存储在playGame函数之外。

目前， playGame的返回值毫无意义，因此我们可以使用它来指示玩家是否获胜：

bool playGame(void)
{
    int point, total;
    printf("The game is starting!\n");
    total = rollDice();
    printf("You rolled: %d\n", total);
    if (total == 7 || total == 11)
    {
        printf("Wow it's your lucky day! You Win!\n");
        return true;
    }
    else if (total == 2 || total == 3 || total == 12)
    {
        printf("Unlucky! You Lose!\n");
        return false;
    }
    else
    {
        point = total;
        printf("Your Point is: %d\n", point);
        while (true)
        {
            total = rollDice();
            printf("You rolled: %d\n", total);
            if (total == point)
            {
                printf("You made your point! You Win!\n");
                return true;
            }
            else if (total == 7)
            {
                printf("Thats a %d. You Lose!\n", total);
                return false;
            }
        }

    }
    return false;
}

并稍微重写main ：

int main(void)
{
    srand((unsigned)(time(NULL)));
    int total = 0;
    int wins = 0;
    char userInput;
    while (true)
    {
        total += 1;
        if (playGame())
        {
            wins += 1;
        }
        printf("Would you like to play again?");
        scanf("%c", &userInput);
        if (userInput == 'n' || userInput == 'N')
        {
            break;
        }
    }
    printf("Of %d games, you won %d.", total, wins);
    return 0;
}