我在使用C创建的Tic-Tac-Toe游戏时遇到了一些问题。
我有一个名为int cats的变量（猫游戏是平局游戏），用于帮助计算和显示平局游戏的文本。
我几周都试过去弄清楚如何让比赛变得平局。即使你们可以指出我正确的方向，那将是甜蜜的！
-Frendin
（PS开头的空if语句是针对玩家与计算机游戏。如果我能弄清楚如何让游戏结合，我可以编码那部分没问题！再次感谢大家！）
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void printTheBoard(char boardPieces[3][3]);
int playerOne(char boardPieces[3][3], int cats);
int playerTwo(char boardPieces[3][3], int cats);
void checkBoard(char boardPieces[3][3], int cats);
int main(void)
{
char boardPieces[3][3] = {'\0'};
int cats = 0; //A tie game in Tic-Tac-Toe is called a Cats Game.
int choice;
printf("Would you like to play against the computer or another player?\n");
printf("Press 1 to play against another player.\n");
printf("Press 2 to play against the computer.\n");
scanf("%d", &choice);
if(choice == 1)
{
for(int i = 0; i < 5; ++i)
{
printTheBoard(boardPieces);
playerOne(boardPieces, cats);
checkBoard(boardPieces, cats);
printTheBoard(boardPieces);
playerTwo(boardPieces, cats);
checkBoard(boardPieces, cats);
}
}
if(choice == 2)
{
}
return 0;
}
void printTheBoard(char boardPieces[3][3])
{
printf("\n %c | %c | %c\n", boardPieces[0][0], boardPieces[0][1], boardPieces[0][2]);
printf("---|---|---\n");
printf(" %c | %c | %c\n", boardPieces[1][0], boardPieces[1][1], boardPieces[1][2]);
printf("---|---|---\n");
printf(" %c | %c | %c\n\n", boardPieces[2][0], boardPieces[2][1], boardPieces[2][2]);
}
int playerOne(char boardPieces[3][3], int cats)
{
int choice;
printf("It is your turn. You are player O. Please enter in the space you would like to take. The first space is 1, continuing left to right, top to bottom\n");
scanf("%d", &choice);
if(choice == 1)
{
boardPieces[0][0] = 'O';
++cats;
return cats;
}
else if(choice == 2)
{
boardPieces[0][1] = 'O';
++cats;
return cats;
}
else if(choice == 3)
{
boardPieces[0][2] = 'O';
++cats;
return cats;
}
else if(choice == 4)
{
boardPieces[1][0] = 'O';
++cats;
return cats;
}
else if(choice == 5)
{
boardPieces[1][1] = 'O';
++cats;
return cats;
}
else if(choice == 6)
{
boardPieces[1][2] = 'O';
++cats;
return cats;
}
else if(choice == 7)
{
boardPieces[2][0] = 'O';
++cats;
return cats;
}
else if(choice == 8)
{
boardPieces[2][1] = 'O';
++cats;
return cats;
}
else if(choice == 9)
{
boardPieces[2][2] = 'O';
++cats;
return cats;
}
}
int playerTwo(char boardPieces[3][3], int cats)
{
int choice;
printf("It is your turn. You are player X. Please enter in the space you would like to take. The first space is 1, continuing left to right, top to bottom\n");
scanf("%d", &choice);
if(choice == 1)
{
boardPieces[0][0] = 'X';
++cats;
return cats;
}
else if(choice == 2)
{
boardPieces[0][1] = 'X';
++cats;
return cats;
}
else if(choice == 3)
{
boardPieces[0][2] = 'X';
++cats;
return cats;
}
else if(choice == 4)
{
boardPieces[1][0] = 'X';
++cats;
return cats;
}
else if(choice == 5)
{
boardPieces[1][1] = 'X';
++cats;
return cats;
}
else if(choice == 6)
{
boardPieces[1][2] = 'X';
++cats;
return cats;
}
else if(choice == 7)
{
boardPieces[2][0] = 'X';
++cats;
return cats;
}
else if(choice == 8)
{
boardPieces[2][1] = 'X';
++cats;
return cats;
}
else if(choice == 9)
{
boardPieces[2][2] = 'X';
++cats;
return cats;
}
}
void checkBoard(char boardPieces[3][3], int cats)
{
if(boardPieces[0][0] == 'O')
{
if(boardPieces[0][1] == 'O')
{
if(boardPieces[0][2] == 'O')
{
printf("Player O has won the game!\n");
}
}
else if(boardPieces[1][1] == 'O')
{
if(boardPieces[2][2] == 'O')
{
printf("Player O has won the game!\n");
}
}
else if(boardPieces[1][0] == 'O')
{
if(boardPieces[2][0] == 'O')
{
printf("Player O has won the game!\n");
}
}
}
else if(boardPieces[0][2] == 'O')
{
if(boardPieces[1][1] == 'O')
{
if(boardPieces[2][0] == 'O')
{
printf("Player O has won the game!\n");
}
}
else if(boardPieces[1][2] == 'O')
{
if(boardPieces[2][2] == 'O')
{
printf("Player O has won the game!\n");
}
}
}
else if(boardPieces[1][1] == 'O')
{
if(boardPieces[0][1] == 'O')
{
if(boardPieces[2][1] == 'O')
{
printf("Player O has won the game!\n");
}
}
else if(boardPieces[1][0] == 'O')
{
if(boardPieces[1][2] == 'O')
{
printf("Player O has won the game!\n");
}
}
}
else if(boardPieces[2][0] == 'O')
{
if(boardPieces[2][1] == 'O')
{
if(boardPieces[2][2] == 'O')
{
printf("Player O has won the game!\n");
}
}
}
if(boardPieces[0][0] == 'X')
{
if(boardPieces[0][1] == 'X')
{
if(boardPieces[0][2] == 'X')
{
printf("Player X has won the game!\n");
}
}
else if(boardPieces[1][1] == 'X')
{
if(boardPieces[2][2] == 'X')
{
printf("Player X has won the game!\n");
}
}
else if(boardPieces[1][0] == 'X')
{
if(boardPieces[2][0] == 'X')
{
printf("Player X has won the game!\n");
}
}
}
else if(boardPieces[0][2] == 'X')
{
if(boardPieces[1][1] == 'X')
{
if(boardPieces[2][0] == 'X')
{
printf("Player X has won the game!\n");
}
}
else if(boardPieces[1][2] == 'X')
{
if(boardPieces[2][2] == 'X')
{
printf("Player X has won the game!\n");
}
}
}
else if(boardPieces[1][1] == 'X')
{
if(boardPieces[0][1] == 'X')
{
if(boardPieces[2][1] == 'X')
{
printf("Player X has won the game!\n");
}
}
else if(boardPieces[1][0] == 'X')
{
if(boardPieces[1][2] == 'X')
{
printf("Player X has won the game!\n");
}
}
}
else if(boardPieces[2][0] == 'X')
{
if(boardPieces[2][1] == 'X')
{
if(boardPieces[2][2] == 'X')
{
printf("Player O has won the game!\n");
}
}
}
else if(cats == 9)
{
printf("There was a tie game!\n");
}
}
答案 0 :(得分：1)
在函数playerOne()和playerTwo()中，增加声明为函数参数的变量cats。您应该将值存储在cats开头声明的main变量中，例如：
for(int i = 0; i < 5; ++i)
{
printTheBoard(boardPieces);
cats = playerOne(boardPieces, cats);
checkBoard(boardPieces, cats);
printTheBoard(boardPieces);
cats = playerTwo(boardPieces, cats);
checkBoard(boardPieces, cats);
}
以下是更详细的解释。请考虑以下代码：
void func(int var)
{
var = 2;
}
int main(void)
{
int var;
var = 1;
func(var);
}
此处有两个名称为 var 的变量。一个在main的开头声明，其范围或生命周期在main函数内。
另一个被声明为func的参数，其范围是func函数的本地范围。 这意味着当 func 函数返回时，变量及其值不再存在。
现在，如果我们想在函数返回后使用func的局部变量的值，我们可以：
返回func修改后的值：
int func(int var)
{
var++;
return var;
}
...
new_var = func(old_var);
让func通过指针修改变量：
void func(int *var)
{
(*var)++;
}
...
func(&var);
此外，在else if末尾打印平局游戏消息的checkBoard()条件永远不会在您当前的代码中运行：
...
else if(boardPieces[2][0] == 'X')
{
if(boardPieces[2][1] == 'X')
{
if(boardPieces[2][2] == 'X')
{
printf("Player O has won the game!\n");
}
}
}
else if(cats == 9)
{
printf("There was a tie game!\n");
}
考虑在打印游戏结果后从checkBoard()函数返回。也许可以考虑返回一个值，表明游戏是否已经结束，这样你就可以在发生这种情况时结束程序。
答案 1 :(得分：0)
我也是一个初级程序员。我只是想在 C++ 中分享我的井字游戏。我只是想分享它，因为我认为如果您使用 for 循环将值放入表中，可以以更有效的方式创建它。
<块引用>这是主文件
#include <iostream>
#include <vector>
#include "tic_tac.hpp"
#include <bits/stdc++.h>
int main() {
std::ios_base::sync_with_stdio(false);
std::cin.tie(NULL);
printf("-------------------------Welcome to the Tic Tac Toe game-------------------------\n");
printf("Now steps to play this game is simple:- \n-> Enter the position at which you want to mark your sign.\n\n");
printf("Just in case for position reference of the table\n\n");
printf(" 1 | 2 | 3 \n");
printf("------------------\n");
printf(" 4 | 5 | 6 \n");
printf("------------------\n");
printf(" 7 | 8 | 9 \n");
printf("\n Ready to play the game(1 for YES and 0 for no): ");
int start;
scanf("%d", &start);
if (start == 1) {
game_run();
}
else {
return 0;
}
}
这是函数文件“tic_f.cpp”
#include <vector>
#include <iostream>
#include "tic_tac.hpp"
#include <algorithm>
//I am using 0 for player a and X for player b
int game_run() {
//This the vector to which we pass input.
std::vector<std::string> game_p = {" ", " ", " ", " ", " ", " ", " ", " ", " "};
bool game_on = true;
std::string user_t = "A";
while (game_on) {
int user_in;
for (int i = 0; i < 9; i += 3) {
std::cout << std::endl << " " + game_p[i] + " | " + game_p[i+1] + " | " + game_p[i+2] << std::endl;
if (i < 6) {
std::cout << "--------------\n";
}
}
//Check if any user has won
//Thus variable check if the game has tie
bool it = false;
for (int i = 0; i < 9; i++) {
if (game_p[i] == " ") {
it = true;
}
}
bool win_check = win(game_p);
if (win_check) {
std::cout << "\n\nPlayer " + user_t + " won the game. Congrats!\n";
game_on = false;
return 0;
}
else if (!it) {
std::cout << "Ohh, that's a tie. Nice game fellas.\n";
game_on = false;
return 0;
}
;
//This checks on which user turn it is
if (user_t == "A") {
user_t = "B";
}
else if (user_t == "B") {
user_t = "A";
}
printf("\nEnter the position you want to make the sign: ");
scanf("%1d", &user_in);
if (user_t == "A" && user_in <= 9) {
game_p[user_in - 1] = "0";
}
else if (user_t == "B" && user_in <= 9) {
game_p[user_in -1] = "X";
}
}
}
bool win(std::vector<std::string> game_l) {
bool what_r = false;
for (int i = 0; i< 9; i += 3) {
if (game_l[i] == game_l[i+1] && game_l[i] == game_l[i+2] && game_l[i] != " ") {
what_r = true;
}
}
for (int i = 0; i < 3; i++) {
if (game_l[i] == game_l[i+3] && game_l[i] == game_l[i+6] && game_l[i] != " ") {
what_r = true;
}
}
for (int i = 0; i < 3; i+= 2) {
if (i == 0 && (game_l[i] == game_l[i+4] && game_l[i] == game_l[i+8])&& game_l[i] != " ") {
what_r = true;
}
else if (i==2 && (game_l[i] == game_l[i+4] && game_l[i] == game_l[i+6]) && game_l[i] != " ") {
what_r = true;
}
}
return what_r;
}
这是头文件，“tic_tac.hpp”
#include <vector>
#include <string>
#include <stack>
bool win(std::vector<std::string> game_l);
int game_run();