create a tic tac toe game in C++ 9 (or fix mine) I have the following code but i

Question

create a tic tac toe game in C++ 9 (or fix mine)

I have the following code but it does not work properly.

#include
#include

using namespace std;

void drawBoard(char board[][3]);
char checkWinner3by3(char board[][3]);

int main()
{
   // This array of chars represents the game board, and it holds the content
   // of each space. By default all spaces are set to a blank space.
   char board[3][3] = { { ' ', ' ', ' ' }, { ' ', ' ', ' ' }, { ' ', ' ', ' ' } };

   // The current player. Because X plays first, initialize to X
   char player = 'X';

   // The winner. either 'X', 'O', or 't' if it's a tie.
   // Or a blank space if the game has not finished.
   char winner = ' ';

   // These variables will hold the number of the row and column selected
   // by the players.
   int row;
   int column;

   // boolean variables used to verify if the move is valid.
   bool is_move;
   bool is_row;
   bool is_column;

   cout << "************ TIC TAC TOE ************ ";

   // The game loops again and again until the game is over
   while (winner == ' ')
   {
       //set the boolean variables back to false for a new turn.
       is_move = false;
       is_row = false;
       is_column = false;

       //draw the board.
       drawBoard(board);

       // If the game is not yet over show who`s the next player to move
       cout << "Player ";
       if (player == 'X')
       {
           cout << 1;
       }
       else
       {
           cout << 2;
       }
       cout << "'s turn:" << endl;

       // Loop until the player selects a valid space for their move
       is_move = false;
       while (!is_move)
       {
           // Loop until the player selects a valid row
           // Assume the user inputs a valid integer
           is_row = false;
           while (!is_row)
           {
               cout << "Row: ";
               cin >> row;
               if (row == 1 || row == 2 || row == 3)
               {
                   is_row = true;
               }
               else
               {
                   cout << endl << "Invalid row!" << endl;
               }
           } // end of input row loop

           // Loop until the player selects a valid column
           // Assume the user inputs a valid integer
           is_column = false;
           while (!is_column)
           {
               cout << "Column: ";
               cin >> column;
               if (column == 1 || column == 2 || column == 3)
               {
                   is_column = true;
               }
               else
               {
                   cout << endl << "Invalid column!" << endl;
               }
           } // end of input column loop

           // If the space is empty, mark the chosen space and swich players
           if (board[row - 1][column - 1] == ' ')
           {
               // Mark the space and end the player's turn
               board[row - 1][column - 1] = player;
               is_move = true;

               // Switch to the other player
               if (player == 'X')
               {
                   player = 'O';
               }
               else
               {
                   player = 'X';
               }
           } // end of marking space and changing players

           // If the space is occupied
           else
           {
               cout << "The selected space is occupied!" << endl;
               cout << "Select a different space:" << endl << endl;
               drawBoard(board);
           }
       } // end of player's move loop

       cout << endl; // for nice output formatting

       //check if the player won.
       winner = checkWinner3by3(board);

       //If there's a winner
       if (winner == 'X' || winner == 'O')
       {
           drawBoard(board);

           //Display congratulations message
           cout << "Congratulations! Player ";
           if (winner == 'X')
           {
               cout << 1;
           }
           else
           {
               cout << 2;
           }
           cout << " is the winner!" << endl;
       }
       else if (winner == 'T')
       {
           drawBoard(board);

           //Display a message if it`s tie
           cout << "It's a tie!" << endl;
       }

   } // End of player's turn loop

   system("pause");
   return 0;
}

//
// Prints the game board
// We know the board is 3 by 3 so we don't need to have the number of rows as
// a parameter.

void drawBoard(char board[][3])
{
   char print[][3] = { { ' ', ' ', ' ' },
   { ' ', ' ', ' ' },
   { ' ', ' ', ' ' } };

   cout << " 1 2 3" << endl;
   cout << " +---+---+---+" << endl;

   cout << " 1" << " | " << print[0][0] << " | " << print[0][1] << " | " << print[0][2] << " | " << endl;
   cout << " +---+---+---+" << endl;

   cout << " 2" << " | " << print[1][0] << " | " << print[1][1] << " | " << print[1][2] << " | " << endl;
   cout << " +---+---+---+" << endl;

   cout << " 3" << " | " << print[2][0] << " | " << print[2][1] << " | " << print[2][2] << " | " << endl;
   cout << " +---+---+---+" << endl;

}
//
// Checks the whole board if there is a winner.
// We know the board is 3 by 3 so we don't need to have the number of rows as
// a parameter.

char checkWinner3by3(char board[][3])
{
   int i;

   for (i = 0; i<3; i++) /* check rows */
   {
       if (board[i][0] == board[i][1] && board[i][0] == board[i][2])
       {
           return board[i][0];
       }
   }

   for (i = 0; i<3; i++) /* check columns */
   {
       if (board[0][i] == board[1][i] && board[0][i] == board[2][i])
       {
           return board[0][i];
       }
   }
   /* test diagonals */
   if (board[0][0] == board[1][1] && board[1][1] == board[2][2])
   {
       return board[0][0];
   }

   if (board[0][2] == board[1][1] && board[1][1] == board[2][0])
   {
       return board[0][2];
   }

   return ' ';
}

Explanation / Answer

#include using namespace std; void display_board(); void player_turn(); bool gameover(); char turn; bool draw = false; char board[3][3] = {{'1', '2', '3'}, {'4', '5', '6'}, {'7', '8', '9'}}; int main() { cout

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.