Tic Tac Toe in Two Dimensional Array Help!

[tksirius]

Hi,
I'm having some trouble with converting a 1 dimensional array program into a two dimensional array program. Actually I'm getting pretty hopeless. I keep getting incompatibility errors in the verify selection. Hopefully someone can help... Here is my code:

#include <stdio.h>

// Function Prototypes
void displayBoard();
int verifySelection(int, int);
void checkForWin();

// Global Variables
char board[3][3];
char cWhoWon = ' ';
int iCurrentPlayer = 0;

// Main Function
main() 
{

	int x, y;
	int iSquareNum = 0;

	for ( x = 0; x <= 2; x++ )
		
		for ( y = 0; y <= 2; y++ )
			board[x][y] = ' ';
		
	displayBoard();
	
	while ( cWhoWon == ' ') 
	{
	
		printf("\n%c\n", cWhoWon);
		
		if ( iCurrentPlayer == 1 || iCurrentPlayer == 0 ) 
		{
		
			printf("\nPLAYER X\n");
			printf("Enter an available square number (1-9): ");
			scanf("%d", &iSquareNum);
			
			if ( verifySelection(iSquareNum, iCurrentPlayer) == 1 )
				iCurrentPlayer = 1;
			else
				iCurrentPlayer = 2;
		}
		
		else
		{
		
			printf("\nPLAYER O\n");
			printf("Enter an available square number (1-9): ");
			scanf("%d", &iSquareNum); 
			
			if ( verifySelection(iSquareNum, iCurrentPlayer) == 1 )
				iCurrentPlayer = 2;
			else
				iCurrentPlayer = 1;
// End If			
		}
		
		displayBoard();
		checkForWin();
		
// End While Loop
	}
	
// End Main Function
}

// Begin Function Definition
void displayBoard() 
{ 

	system("cls");
	printf("\n\t|\t|\n");
	printf("\t|\t|\n");
	printf("%c\t|%c\t|%c\n", board[0][0], board[0][1], board[0][2]);
	printf("--------|-------|--------\n");
	printf("\t|\t|\n");
	printf("%c\t|%c\t|%c\n", board[1][0], board[1][1], board[1][2]);
	printf("--------|-------|--------\n");
	printf("\t|\t|\n");
	printf("%c\t|%c\t|%c\n", board[2][0], board[2][1], board[2][2]);
	printf("\t|\t|\n");
	
// End Function Definition
}

// Begin Function Definition
int verifySelection(int iSquareNum, int iCurrentPlayer) 
{ 

	if ( board[iSquareNum - 1] == ' ' && (iCurrentPlayer == 1 || iCurrentPlayer == 0) ) 
	{
		board[iSquareNum - 1] = 'X';
		return 0;
	}
	
	else if ( board[iSquareNum - 1] == ' ' && iCurrentPlayer == 2 ) 
	{
		board[iSquareNum - 1] = 'O';
		return 0;
	}
	
	else
		return 1;
// End Function Definition
} 

// Begin Function Definition
void checkForWin() 
{
	int catTotal;
	int x, y;
	

// check each row for a winner
if (board[0][0] && board[0][1] && board[0][2] == 'X')
	cWhoWon = 'X';

// check row 2 for winner
else if (board[1][0] && board[1][1] && board[1][2] == 'X')
	cWhoWon = 'X';

// check row 3 for winner
else if (board[2][0] && board[2][1] && board[2][2] == 'X')
	cWhoWon = 'X';

// check column 1 for winner
else if (board[0][0] && board[1][0] && board[2][0] == 'X')
	cWhoWon = 'X';

// check column 2 for winner
else if (board[0][1] && board[1][1] && board[2][1] == 'X')
	cWhoWon = 'X';

// check column 3 for winner
else if (board[0][2] && board[1][2] && board[2][2] == 'X')
	cWhoWon = 'X';

//check each diagnoal for a winner
else if (board[0][0] && board[1][1] && board[2][2] == 'X')
	cWhoWon = 'X';

// check second diagonal for winner
else if (board[0][2] && board[1][1] && board[2][0] == 'X')
	cWhoWon = 'X';

// check each row for a winner
else if (board[0][0] && board[0][1] && board[0][2] == 'O')
	cWhoWon = 'O';

// check row 2 for winner
else if (board[1][0] && board[1][1] && board[1][2] == 'O')
	cWhoWon = 'O';

// check row 3 for winner
else if (board[2][0] && board[2][1] && board[2][2] == 'O')
	cWhoWon = 'O';

// check column 1 for winner
else if (board[0][0] && board[1][0] && board[2][0] == 'O')
	cWhoWon = 'O';

// check column 2 for winner
else if (board[0][1] && board[1][1] && board[2][1] == 'O')
	cWhoWon = 'O';

// check column 3 for winner
else if (board[0][2] && board[1][2] && board[2][2] == 'O')
	cWhoWon = 'O';


// check each diagnoal for a winner
else if (board[0][0] && board[1][1] && board[2][2] == 'O')
	cWhoWon = 'O';

// check second diagonal for winner
else if (board[0][2] && board[1][1] && board[2][0] == 'O')
	cWhoWon = 'O';

		
	if (cWhoWon == 'X') 
	{
		printf("\nX Wins!\n");
		return;
	} 
	
	if (cWhoWon == 'O') 
	{
		printf("\nO Wins!\n");
		return;
	} 
	
// Check for CAT or Tie Game
	for ( x = 0; x < 9; x++ )
	
		for ( y = 0; y < 9; y++ )
		{
			if ( board[x][y] != ' ')
				catTotal += 1;
			
// End For Loop
	}
	
	if ( catTotal == 9 )
	{
		cWhoWon = 'C';
		printf("\nCAT Game!\n");
		return;
		
// End If
	}
	
	
// End Function Definition
}

[quzah]

What exactly are you having a problem with?


Quzah.

[tksirius]

I can't figure out how to change the verifySelection to be compatible with the displayBoard. I get compatibility type errors on two lines:
board[iSquareNum - 1] = 'X';
&
board[iSquareNum - 1] = 'O';

The user is entering 1 thru 9 for boards 0 thru 9 so I need to subtract 1 from whatever the user selects. But I can't figure out how to write this code.
This section:

// Begin Function Definition
void displayBoard() 
{ 

	system("cls");
	printf("\n\t|\t|\n");
	printf("\t|\t|\n");
	printf("%c\t|%c\t|%c\n", board[0][0], board[0][1], board[0][2]);
	printf("--------|-------|--------\n");
	printf("\t|\t|\n");
	printf("%c\t|%c\t|%c\n", board[1][0], board[1][1], board[1][2]);
	printf("--------|-------|--------\n");
	printf("\t|\t|\n");
	printf("%c\t|%c\t|%c\n", board[2][0], board[2][1], board[2][2]);
	printf("\t|\t|\n");
	
// End Function Definition
}

// Begin Function Definition
int verifySelection(int iSquareNum, int iCurrentPlayer) 
{ 

	if ( board[iSquareNum - 1] == ' ' && (iCurrentPlayer == 1 || iCurrentPlayer == 0) ) 
	{
		board[iSquareNum - 1] = 'X';
		return 0;
	}
	
	else if ( board[iSquareNum - 1] == ' ' && iCurrentPlayer == 2 ) 
	{
		board[iSquareNum - 1] = 'O';
		return 0;
	}
	
	else
		return 1;
// End Function Definition
}

[CommonTater]

This is what you get for scoop and poop coding... Problems in code that you don't know the first thing about.

Hint: Given all the time and effort you're putting into trying to doctor someone else's code, you could probably have written your own with half the effort.