Thread: Tic Tac Toe again.

I made a SOMEWHAT smart tic tac toe that uses a board class......enjoy !

Code:

#include <iostream>
using namespace std;

class board {
	protected:
		char board[3][3];

	public:
		board() {
			for(int i = 0; i < 3; i++) {
				for(int j = 0; j < 3; j++) {
					board[i][j] = ' ';
				}
			}
		}

		void play() {
			char win;
			do {
				display();
				playerMove();
				win = checkWinner();
				if(win != ' ') {
					break;
				}
				computerMove();
				win = checkWinner();
			} while(win == ' ');
			if(win == 'X') {
				cout << "\nYOU WIN!\n\n";
			}
			if(win == 'O'){
				cout << "\nTHE COMPUTER WINS!\n\n";
			}
			if(win == 'D') {
				cout << "\nCAT'S GAME!\n\n";
			}
			display();
		}

		void display() {
			cout << "     X     \n";
			cout << " 0 | 1 | 2\n\n";
			for(int i = 0; i < 3; i++) {
				cout << " " << board[i][0] << " | " << board[i][1] << " | " << board[i][2] << " ";
				cout << "  " << i;
				if(i == 1) {
					cout << " Y ";
				}
				if(i != 2) {
					cout << "\n---|---|---  -\n";
				}
			}
		}

		void playerMove() {
			int x, y;
			cout << "\nEnter x coordinate: ";
			cin >> x;
			cout << "\nEnter y coordinate: ";
			cin >> y;
			if(board[y][x] != ' ') {
				cout << "Incorrect coordinate. Please enter again.\n";
				playerMove();
			} else {
				board[y][x] = 'X';
			}
		}

		void computerMove() {
			if((board[0][0] == board[1][1]) && (board[2][2] == ' ') && (board[0][0] != ' ') && (board[1][1] != ' ')) {
				board[2][2] = 'O';
				return;
			}
			if((board[1][1] == board[2][2]) && (board[0][0] == ' ') && (board[1][1] != ' ') && (board[2][2] != ' ')) {
				board[0][0] = 'O';
				return;
			}
			if((board[0][0] == board[2][2]) && (board[1][1] == ' ') && (board[0][0] != ' ') && (board[2][2] != ' ')) {
				board[1][1] = 'O';
				return;
			}
			if((board[0][2] == board[1][1]) && (board[2][0] == ' ') && (board[0][2] != ' ') && (board[1][1] != ' ')) {
				board[2][0] = 'O';
				return;
			}
			if((board[2][0] == board[1][1]) && (board[0][2] == ' ') && (board[2][0] != ' ') && (board[1][1] != ' ')) {
				board[0][2] = 'O';
				return;
			}
			if((board[2][0] == board[0][2]) && (board[1][1] == ' ') && (board[2][0] != ' ') && (board[0][2] != ' ')) {
				board[1][1] = 'O';
				return;
			}
			if((board[0][0] == board[1][0]) && (board[2][0] == ' ') && (board[0][0] != ' ') && (board[1][0] != ' ')) {
				board[2][0] = 'O';
				return;
			}
			if((board[0][1] == board[1][1]) && (board[2][1] == ' ') && (board[0][1] != ' ') && (board[1][1] != ' ')) {
				board[2][1] = 'O';
				return;
			}
			if((board[0][2] == board[1][2]) && (board[2][1] == ' ') && (board[0][2] != ' ') && (board[1][2] != ' ')) {
				board[2][1] = 'O';
				return;
			}
			if((board[0][0] == board[0][1]) && (board[0][2] == ' ') && (board[0][0] != ' ') && (board[0][1] != ' ')) {
				board[0][2] = 'O';
				return;
			}
			if((board[1][0] == board[1][1]) && (board[1][2] == ' ') && (board[1][0] != ' ') && (board[1][1] != ' ')) {
				board[1][2] = 'O';
				return;
			}
			if((board[2][0] == board[2][1]) && (board[2][2] == ' ') && (board[2][0] != ' ') && (board[2][1] != ' ')) {
				board[2][2] = 'O';
				return;
			}
			for(int i = 0; i < 3; i++) {
				for(int j = 0; j < 3; j++) {
					if(board[i][j] == ' ') {
						board[i][j] = 'O';
						return;
					}
				}
			}
		}

		char checkWinner() {
			for(int i = 0; i < 3; i++) {
				if((board[i][0] == board[i][1]) && (board[i][1] == board[i][2])) {
					return board[i][0];
				}
				if((board[0][i] == board[1][i]) && (board[1][i] == board[2][i])) {
					return board[0][i];
				}
			}
			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];
			}
			unsigned int a = 0;
			for(int i = 0; i < 3; i++) {
				for(int j = 0; j < 3; j++) {
					if(board[i][j] == ' ') {
						break;
					} else {
						a++;
					}
				}
			}
			if(a == 9) {
				return 'D';
			}
			return ' ';
		}
};

int main() {
	char ch;
	do {
		board b;
		b.play();
		cout << "\n\nDo you wish to play again? (Y/N):";
		cin >> ch;
	} while(ch == 'Y');
	cout << "\n\nThanks for playing!!!";
	return 0;
}

Got 3 errors under MSVC:

Code:

error C2380: type(s) preceding 'board' (constructor with return type, or illegal redefinition of current class-name?)
error C2059: syntax error : '['
error C2238: unexpected token(s) preceding ';'

You should probably zip the code and attach it. It's easier that way.

Interesting - i never got any errors like those (using Borland 5.5 command line). All i got were warnings about "so and so" functions should be inline.

All i got were warnings

Some warnings on one compiler can be errors on others, that's why you should make sure you have no warnings; don't just ignore them.

Originally posted by revelation437
not dissin ur game at all
just compiler issues
just wanna make sure that u dont think im putting urs down.

Didnt think that at all .