Help making Tic-Tac-Toe Game

[Assassin7257]

So I'm making a Tic-Tac-Toe game, I've got up to where x can be placed on the board but I don't know how to decide which player turn it is. I would be highly appreciated if I could get some help.

the graphics library I'm using is SDL
the link to the source code and images is here
http://www.mediafire.com/?tihfigoh2d458hu

[Hippogriff]

Here is one way you could do it...
First add a bool checking which players turn it is, and a surface to hold the current symbol they are using.

bool Player1 = true; 
SDL_Surface *Symbol = NULL;

Then in your handle_events() function you could add

if(Player1 == true)
{
	Symbol = o; 
}

else
{
	Symbol = xO;
}

Finally you can add a function to change the player every time a player places a piece on the board

void Change_Player()
{
	if(Player1 == true)
	{
		Player1 = false;
	}

	else
	{
		Player1 = true; 
	}
}

You will also need to change your event function so it displays the "Symbol" instead of just X so it keeps up with the current player, and make sure it changes the player each time.

     if ( ( x > board[0].x ) && ( x < board[0].x + board[0].w) && ( y > board[0].y) && (y < board[0].y + board[0].h) )
            {
                apply_surface(0, 0, Symbol, screen);
		Change_Player();
            }

Hopefully that gives you some ideas on how it works anyway, you could also add some text showing which players turn it is at the top right etc.