In this assignment, you will write two complete C programs that will allow two players to play the game of network tic-tac-toe. It will include two programs, a server and a client. The server will allow two clients to connect and then will begin the game. The client programs accept input from the player and transmits the command to the server which will execute the commands and send a reply back to the client programs.

This program allows two players to play the game of network tic-tac-toe.

Explanation:

It will include two programs, a server and a client. The server will allow two clients to connect and then will begin the game. The client programs accept input from the player and transmits the command to the server which will execute the commands and send a reply back to the client programs.

#include <stdio.h>

#include <conio.h>

char square[10] = { 'o', '1', '2', '3', '4', '5', '6', '7', '8', '9' };

int checkwin();

void board();

int main()

{

   int player = 1, i, choice;

   char mark;

   do

   {

       board();

       player = (player % 2) ? 1 : 2;

       printf("Player %d, enter a number:  ", player);

       scanf("%d", &choice);

       mark = (player == 1) ? 'X' : 'O';

       if (choice == 1 && square[1] == '1')

           square[1] = mark;

       else if (choice == 2 && square[2] == '2')

           square[2] = mark;

       else if (choice == 3 && square[3] == '3')

           square[3] = mark;

       else if (choice == 4 && square[4] == '4')

           square[4] = mark;

       else if (choice == 5 && square[5] == '5')

           square[5] = mark;

       else if (choice == 6 && square[6] == '6')

           square[6] = mark;

       else if (choice == 7 && square[7] == '7')

           square[7] = mark;

       else if (choice == 8 && square[8] == '8')

           square[8] = mark;

       else if (choice == 9 && square[9] == '9')

           square[9] = mark;

       else

       {

           printf("Invalid move ");

           player--;

           getch();

       }

       i = checkwin();

       player++;

   }while (i ==  - 1);

   board();

   if (i == 1)

       printf("==>\aPlayer %d win ", --player);

   else

       printf("==>\aGame draw");

   getch();

   return 0;

}

/

FUNCTION TO RETURN GAME STATUS

1 FOR GAME IS OVER WITH RESULT

-1 FOR GAME IS IN PROGRESS

O GAME IS OVER AND NO RESULT

/

int checkwin()

{

   if (square[1] == square[2] && square[2] == square[3])

       return 1;

   else if (square[4] == square[5] && square[5] == square[6])

       return 1;

   else if (square[7] == square[8] && square[8] == square[9])

       return 1;

   else if (square[1] == square[4] && square[4] == square[7])

       return 1;

   else if (square[2] == square[5] && square[5] == square[8])

       return 1;

   else if (square[3] == square[6] && square[6] == square[9])

       return 1;

   else if (square[1] == square[5] && square[5] == square[9])

       return 1;

   else if (square[3] == square[5] && square[5] == square[7])

       return 1;

   else if (square[1] != '1' && square[2] != '2' && square[3] != '3' &&

       square[4] != '4' && square[5] != '5' && square[6] != '6' && square[7]  

       != '7' && square[8] != '8' && square[9] != '9')

       return 0;

   else

       return  - 1;

}

/

FUNCTION TO DRAW BOARD OF TIC TAC TOE WITH PLAYERS MARK

/

void board()

{

   system("cls");

   printf("\n\n\tTic Tac Toe\n\n");

   printf("Player 1 (X)  -  Player 2 (O)\n\n\n");

   printf("     |     |     \n");

   printf("  %c  |  %c  |  %c \n", square[1], square[2], square[3]);

   printf("||\n");

   printf("     |     |     \n");

   printf("  %c  |  %c  |  %c \n", square[4], square[5], square[6]);

   printf("||\n");

   printf("     |     |     \n");

   printf("  %c  |  %c  |  %c \n", square[7], square[8], square[9]);

   printf("     |     |     \n\n");

}

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