static void Main(string[] args)
{
//*************************
// Currently can only be 2 player game
// ************************
// Welcome to the game
Console.WriteLine("Welcome to TicTacToe!");
Console.WriteLine();
GameSelection:
// Ask if its a 1 or 2 player game
Console.Write("Do you want to play a one-player game or two-player game (enter 1 or 2)? ");
var numPlayers = Console.ReadLine();
if (numPlayers != "1" && numPlayers != "2")
{
Console.WriteLine("You did not enter a valid number (1 or 2). Please try again.");
goto GameSelection;
}
var playerList = new Player[2];
Console.WriteLine();
// Set up each player, getting player names and symbols
for (var i = 0; i < Convert.ToInt32(numPlayers); i++)
{
PlayerNameInit:
Console.Write("Player {0} - Please enter your name: ", i + 1);
var playerName = Console.ReadLine();
if (string.IsNullOrWhiteSpace(playerName))
{
Console.WriteLine("You did not enter a name. Please try again.");
goto PlayerNameInit;
}
Console.WriteLine();
PlayerSymbolInit:
Console.Write("Player {0} - Please choose your symbol (A-Z): ", i + 1);
var playerSymbol = Console.ReadLine();
if (string.IsNullOrWhiteSpace(playerSymbol) || playerSymbol.Length != 1 ||
(Convert.ToChar(playerSymbol.ToUpper()) < 'A' || Convert.ToChar(playerSymbol.ToUpper()) > 'Z'))
{
Console.WriteLine("You did not enter a valid symbol. Please try again");
goto PlayerSymbolInit;
}
playerList[i] = new Player(Convert.ToChar(playerSymbol.ToUpper()))
{
PlayerName = playerName
};
Console.WriteLine();
}
// Add computer player if 1 player game chosen
if (Convert.ToInt32(numPlayers) == 1)
{
if (playerList[0].PlayerSymbol == 'X')
{
playerList[1] = new Player('O');
}
else
{
playerList[1] = new Player('X');
}
playerList[1].PlayerName = "Computer";
}
// Ask how big a board to play (3 - 10) and set up board
BoardSizeInit:
Console.Write("How big a board would you like to play (3-10)? ");
var boardSize = Console.ReadLine();
if (string.IsNullOrWhiteSpace(boardSize) || !(int.TryParse(boardSize, out int o)) || (Convert.ToInt32(boardSize) < 3 || Convert.ToInt32(boardSize) > 10))
{
Console.WriteLine("You did not choose a valid board size. Please try again.");
goto BoardSizeInit;
}
var gameBoard = new Board(Convert.ToInt32(boardSize));
// Loop until game ends:
var game = new Game(playerList[0]);
while (game.ActiveGame)
{
// Draw the board
gameBoard.DrawBoard();
if (game.CurrentPlayer.PlayerName == "Computer")
{
Console.WriteLine("It's the computer's turn!");
var valid = false;
//Randomly pick an empty square
while (!valid)
{
var randRow = new Random();
int row = randRow.Next(0, gameBoard.BoardSize);
var randCol = new Random();
int col = randCol.Next(0, gameBoard.BoardSize);
if (gameBoard.GetCurrentSymbol(row, col) ==
'\0')
{
gameBoard.UpdateBoard(row, col, game.CurrentPlayer.PlayerSymbol);
valid = true;
}
}
}
else
{
MoveSelection:
// Get player selection and play move
Console.WriteLine("{0}: Please choose where to make your move.", game.CurrentPlayer.PlayerName);
RowSelection:
Console.Write("Enter your row number: ");
var row = Console.ReadLine();
if (string.IsNullOrWhiteSpace(row) || !(int.TryParse(row, out int m)) || (Convert.ToInt32(row) < 1 || Convert.ToInt32(row) > gameBoard.BoardSize))
{
Console.WriteLine("You did not enter a valid row number. Please try again.");
goto RowSelection;
}
ColSelection:
Console.Write("Enter your column number: ");
var col = Console.ReadLine();
if (string.IsNullOrWhiteSpace(col) || !(int.TryParse(col, out int n)) || (Convert.ToInt32(col) < 1 || Convert.ToInt32(col) > gameBoard.BoardSize))
{
Console.WriteLine("You did not enter a valid column number. Please try again.");
goto ColSelection;
}
if (gameBoard.GetCurrentSymbol(Convert.ToInt32(row) - 1, Convert.ToInt32(col) - 1) != '\0')
{
Console.WriteLine("This position has already been filled! Please make another selection.");
goto MoveSelection;
}
gameBoard.UpdateBoard(Convert.ToInt32(row) - 1, Convert.ToInt32(col) - 1, game.CurrentPlayer.PlayerSymbol);
}
// Check if game is won
if (game.CheckWinner(gameBoard))
{
Console.WriteLine("The game was won!");
Console.WriteLine();
gameBoard.DrawBoard();
// Get winner
foreach (Player player in playerList)
{
if (player.PlayerSymbol == game.ReturnWinner())
{
Console.WriteLine("The winner is: " + player.PlayerName);
}
}
Console.WriteLine();
break;
}
// Check if game is drawn
if (game.CheckDraw(gameBoard))
{
Console.WriteLine("The game was drawn!");
Console.WriteLine();
gameBoard.DrawBoard();
Console.WriteLine();
break;
}
// Switch player
game.SwitchPlayer(playerList);
}
// Ask if a replay is wanted
RepeatGame:
Console.Write("Would you like to play another game (Y/N)? ");
var answer = Console.ReadLine();
if (answer.ToUpper() != "Y" && answer.ToUpper() != "N")
{
Console.WriteLine("You did not make a valid choice. Please try again.");
goto RepeatGame;
}
if (answer.ToUpper() == "Y")
{
goto GameSelection;
}
}