private static void Display(Connect4 game)
{
for (int y = 3; y < game.LineCount - 3; y++)
{
for (int x = 3; x < game.ColCount - 3; x++)
{
Console.Write($"| {game.GetPawn(x, y)} ");
}
Console.WriteLine("|");
for (int x = 3; x < game.ColCount - 3; x++)
{
Console.Write($"+---");
}
Console.WriteLine("+");
}
for (int x = 3; x < game.ColCount - 3; x++)
{
Console.Write($" {x - 2} ");
}
Console.WriteLine();
}
static void Main(string[] args)
{
var game = new Connect4();
Regex rx = new Regex(@"^[+]?[1-7]+$");
do
{
Display(game);
for (;;)
{
Console.WriteLine($"Player {game.PlayerNumber()} : Which column 1-{game.ColCount-6} ?");
var turn = Console.ReadLine();
int column;
if (!rx.IsMatch(turn))
{
Console.Error.WriteLine("Invalid input.");
}
else if (Int32.Parse(turn) < 1 || Int32.Parse(turn) > game.ColCount)
{
Console.Error.WriteLine("Invalid column number.");
}
else if (int.TryParse(turn, out column))
{
game.Play(column);
break;
}
}
} while (!game.Ended());
Display(game);
if (game.Winner() == 3)
{
Console.WriteLine("Draw");
}
else
{
Console.WriteLine($"Player {game.Winner()} wins.");
}
}