static void Main(string[] args)
{
char userletter = chooseLetter();
char[] board = new char[10];
char computerletter = (userletter == 'X')? '0':'X';
PLAYER player = whoStartsGame();
bool playGame = true;
while (playGame)
{
if (player.Equals(PLAYER.USER))
{
Console.WriteLine("Enter the position to be filled");
int index = Convert.ToInt32(Console.ReadLine());
if (board[index] == '\0')
{
board[index] = userletter;
if (isWinner(userletter, board))
{
Console.WriteLine("Computer Won");
playGame = false;
}
else
{
player = PLAYER.COMPUTER;
}
}
else if (isBoardFull(board))
{
playGame = false;
}
else
{
Console.WriteLine("Enter at correct position");
player = PLAYER.USER;
}
}
else if (player.Equals(PLAYER.COMPUTER))
{
Random random = new Random();
int index = random.Next(0, 9);
if (board[index] == '\0')
{
board[index] = computerletter;
if (isWinner(computerletter, board))
{
Console.WriteLine("Computer Won");
playGame = false;
}
else
{
player = PLAYER.USER;
}
}
else if (isBoardFull(board))
{
playGame = false;
}
else
{
Console.WriteLine("Enter at correct position");
player = PLAYER.COMPUTER;
}
}
}
bool restart = playAgain();
}
