Question about restarting a loop

I finished my ttt game, its version 1.0. I decided that once somebody has won I want to ask them if they want to play again. How would you go back into a loop once you left it? Here is my code:

Code:

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#include <stdio.h>
#include <windows.h>

int turn = 1, move = 0, done = 0; // Sets turn to 1, move to 0, and done to 0
char restart, y, Y;
char name1[25], name2[25];
char board[9]; // The tic-tac-toe Board

void DrawBoard();
void DrawBoard() //* Draws the board *//
{
printf("\n\n");
printf(" %c | %c | %c \n", board[0], board[1], board[2]);
printf(" --------- \n");
printf(" %c | %c | %c \n", board[3], board[4], board[5]);
printf(" --------- \n");
printf(" %c | %c | %c \n", board[6], board[7], board[8]);
printf("\n\n");
}// DrawBoard

void Wincheck()
{
 if ((board[0] == 'X' && board[1] == 'X' && board[2] == 'X') ||
      (board[3] == 'X' && board[4] == 'X' && board[5] == 'X') ||
      (board[6] == 'X' && board[7] == 'X' && board[8] == 'X') ||
      (board[0] == 'X' && board[3] == 'X' && board[6] == 'X') ||
      (board[1] == 'X' && board[4] == 'X' && board[7] == 'X') ||
      (board[2] == 'X' && board[5] == 'X' && board[8] == 'X') ||
      (board[0] == 'X' && board[4] == 'X' && board[8] == 'X') ||
      (board[2] == 'X' && board[4] == 'X' && board[6] == 'X'))
 {printf("%s wins\n", name1);
        done = 1;}

  if ((board[0] == 'O' && board[1] == 'O' && board[2] == 'O') ||
      (board[3] == 'O' && board[4] == 'O' && board[5] == 'O') ||
      (board[6] == 'O' && board[7] == 'O' && board[8] == 'O') ||
      (board[0] == 'O' && board[3] == 'O' && board[6] == 'O') ||
      (board[1] == 'O' && board[4] == 'O' && board[7] == 'O') ||
      (board[2] == 'O' && board[5] == 'O' && board[8] == 'O') ||
      (board[0] == 'O' && board[4] == 'O' && board[8] == 'O') ||
      (board[2] == 'O' && board[4] == 'O' && board[6] == 'O'))
  {printf("%s wins\n", name2);
  done = 1;}
}

void Playersturn();
void Playersturn() // Players turn
{

// player 1
        if(turn == 1)
                {printf("It is %s's turn: ", name1);
                scanf("%d", &move);
                move--;
                if( (board[move]!='X')&&(board[move]!='O') )
                        {board[move]='X';turn=2;}
                else
                        printf("Invalid Move\n");
                        system("cls");
                                                       
}// player 1

// player 2
        else
                {printf("It is %s's turn: ", name2);
                scanf("%d", &move);
                move--;
                if( (board[move]!='X')&&(board[move]!='O') )
                        {board[move]='O';turn=1;}
                else
                        printf("Invalid move\n");
                        system("cls");
               
        } //player 2
} //players turn

int main()
{

printf("\n");
printf("Welcome to tic-tac-toe!!!\n\n");

// Players names
printf("What is 1st player's name: ");       
        scanf("%s", name1);
printf("\nWhat is 2nd player's name: ");
        scanf("%s", name2);
system("cls");

do
        {
       
        DrawBoard();
        Playersturn();
        Wincheck();

        } // do loop
while (done == 0);

return 0;       

}// int main()

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looks good. Let me see what it does:-D

I have been busy working and stuff... I got this done in my spare time.. Its version 1.2:

Code:

---

#include <stdio.h>
#include <conio.h>
#include <windows.h>

int turn = 1, move = 0, done = 0; // Sets turn to 1, move to 0, and done to 0

char restart;
char name1[25], name2[25];
char board[9] = {'1','2','3','4','5','6','7','8','9'}; // The tic-tac-toe Board

void Playersnames()
{
// Players names
printf("What is 1st player's name: ");       
        scanf("%s", name1);
printf("\nWhat is 2nd player's name: ");
        scanf("%s", name2);
system("cls");
}

void DrawBoard()
{
printf("\n\n");
printf(" %c | %c | %c \n", board[0], board[1], board[2]);
printf(" --------- \n");
printf(" %c | %c | %c \n", board[3], board[4], board[5]);
printf(" --------- \n");
printf(" %c | %c | %c \n", board[6], board[7], board[8]);
printf("\n\n");
}// DrawBoard

void Playersturn()
{
        if(turn == 1)
                {printf("It is %s's turn: ", name1);
                scanf("%d", &move);
                move--;
                if((board[move]!='X')&&(board[move]!='O'))
                        {board[move]='X';turn=2;}
                else
                        {printf("Invalid Move\n");}
                system("cls");                                                                               
}// player 1

        else
                {printf("It is %s's turn: ", name2);
                scanf("%d", &move);
                move--;
                if((board[move]!='X')&&(board[move]!='O'))       
                        {board[move]='O';turn=1;}
                else
                        {printf("Invalid move\n");}
                system("cls");               
} //player 2

} //players turn

void Wincheck()
{
        if ((board[0] == 'X' && board[1] == 'X' && board[2] == 'X') ||
                (board[3] == 'X' && board[4] == 'X' && board[5] == 'X') ||
                (board[6] == 'X' && board[7] == 'X' && board[8] == 'X') ||
                (board[0] == 'X' && board[3] == 'X' && board[6] == 'X') ||
                (board[1] == 'X' && board[4] == 'X' && board[7] == 'X') ||
                (board[2] == 'X' && board[5] == 'X' && board[8] == 'X') ||
                (board[0] == 'X' && board[4] == 'X' && board[8] == 'X') ||
                (board[2] == 'X' && board[4] == 'X' && board[6] == 'X'))
        {printf("%s wins!!!\n", name1);
        done = 1;}

        if ((board[0] == 'O' && board[1] == 'O' && board[2] == 'O') ||
                (board[3] == 'O' && board[4] == 'O' && board[5] == 'O') ||
                (board[6] == 'O' && board[7] == 'O' && board[8] == 'O') ||
                (board[0] == 'O' && board[3] == 'O' && board[6] == 'O') ||
                (board[1] == 'O' && board[4] == 'O' && board[7] == 'O') ||
                (board[2] == 'O' && board[5] == 'O' && board[8] == 'O') ||
                (board[0] == 'O' && board[4] == 'O' && board[8] == 'O') ||
                (board[2] == 'O' && board[4] == 'O' && board[6] == 'O'))
        {printf("%s wins!!!\n", name2);
        done = 1;}

}

void Restart() // Clears and resets the board and done
{
        memset(board, 0, 9);
        done = 0;
        system("cls");
}

void Playgame ( void )
{
    do
        {
            DrawBoard();
            Playersturn();
            Wincheck();
        } // playgame loop
    while (done == 0);
}

int main()
{
    printf("\n");
    printf("Welcome to Tic-Tac-Toe!!!\n\n");
        Playersnames();

do
{
        Playgame();

printf("Do you want to play again?");
        restart=getch();
        Restart();
} // Do loop
while( toupper(restart) == 'Y');

return 0;
}// Int main()

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The one thing you noticed, if you ran the code, was once you restarted it doesn't have the numbers on the board. Any ideas on fixing that

In Restart(), you memset the board to 0s. You'll have to set it up again with something like:

Code:

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void SetupBoard()
{
  int i;

  for(i = 0; i<9; i++)
    board[i] = i + 1;
}

---

Thanks froggy... that is what I thought i had to do

Oops. I just realized that you were using chars. The code I gave you won't work correctly. Try this..

Code:

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void SetupBoard()
{
  int i;

  for(i = 0; i < 9; i++)
    board[i] = '1' + i;
}

---

Yea I saw that..... Thanks

New problem... numbers don't want to change to 'X' or 'O' with that new code???

If it's still giving you a problem, repost all of the new code.

By the way.. what part of Florida are you from?

Alright here it is:

Code:

---

#include <stdio.h>
#include <conio.h>
#include <windows.h>

int turn = 1, move = 0, done = 0; // Sets turn to 1, move to 0, and done to 0

char restart;
char name1[25], name2[25];
char board[9]; // The tic-tac-toe Board

void Playersnames()
{
// Players names
printf("What is 1st player's name: ");       
        scanf("%s", name1);
printf("\nWhat is 2nd player's name: ");
        scanf("%s", name2);
system("cls");
}

void DrawBoard()
{
int n;
for(n=0;n<9;n++) {board[n]= '1' + n;}
printf("\n\n");
printf(" %c | %c | %c \n", board[0], board[1], board[2]);
printf(" --------- \n");
printf(" %c | %c | %c \n", board[3], board[4], board[5]);
printf(" --------- \n");
printf(" %c | %c | %c \n", board[6], board[7], board[8]);
printf("\n\n");
}// DrawBoard

void Playersturn() // Players turn
{

// player 1
        if(turn == 1)
                {printf("It is %s's turn: ", name1);
                scanf("%d", &move);
                move--;
                if( (board[move]!='X')&&(board[move]!='O') )
                        {board[move]='X';turn=2;}
                else
                        printf("Invalid Move\n");
                        system("cls");
                                                       
}// player 1

// player 2
        else
                {printf("It is %s's turn: ", name2);
                scanf("%d", &move);
                move--;
                if( (board[move]!='X')&&(board[move]!='O') )       
                        {board[move]='O';turn=1;}
                else
                        printf("Invalid move\n");
                        system("cls");
               
        } //player 2
} //players turn

void Wincheck()
{
 if ((board[0] == 'X' && board[1] == 'X' && board[2] == 'X') ||
      (board[3] == 'X' && board[4] == 'X' && board[5] == 'X') ||
      (board[6] == 'X' && board[7] == 'X' && board[8] == 'X') ||
      (board[0] == 'X' && board[3] == 'X' && board[6] == 'X') ||
      (board[1] == 'X' && board[4] == 'X' && board[7] == 'X') ||
      (board[2] == 'X' && board[5] == 'X' && board[8] == 'X') ||
      (board[0] == 'X' && board[4] == 'X' && board[8] == 'X') ||
      (board[2] == 'X' && board[4] == 'X' && board[6] == 'X'))
 {printf("%s wins\n", name1);
        done = 1;}

  if ((board[0] == 'O' && board[1] == 'O' && board[2] == 'O') ||
      (board[3] == 'O' && board[4] == 'O' && board[5] == 'O') ||
      (board[6] == 'O' && board[7] == 'O' && board[8] == 'O') ||
      (board[0] == 'O' && board[3] == 'O' && board[6] == 'O') ||
      (board[1] == 'O' && board[4] == 'O' && board[7] == 'O') ||
      (board[2] == 'O' && board[5] == 'O' && board[8] == 'O') ||
      (board[0] == 'O' && board[4] == 'O' && board[8] == 'O') ||
      (board[2] == 'O' && board[4] == 'O' && board[6] == 'O'))
  {printf("%s wins\n", name2);
  done = 1;}
}

void Playgame()
{
    do
        {
            DrawBoard();
            Playersturn();
            Wincheck();
        } // playgame loop
    while (done == 0);
}

void Clearall()
{
        memset((void *)board, 0, sizeof(board));
        done = 0;
}

int main()
{

printf("\n");
printf("Welcome to tic-tac-toe!!!\n\n");
Playersnames();
do
{
Playgame();
printf("Do you want to play again?\n");
restart=getch();
Clearall ();
system("cls");
}

while( toupper(restart) == 'Y');

return 0;
}// int main()

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I think whats wrong is that when the function to draw the board is called I think it resets the board.

Yeah that is what it was... I fixed it !!! Now I am going to clean up the code and see if I can delete some lines... :D

Question of the day is... I want to make an if statement that if you press a letter besides a number it wont crash the program... Something like this:

Code:

---

if ( move >a || <z)
{ } //do this
else
{} //do this

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Would this work ???