Added Socket based online Play (Doesnt work)

Signed-off-by: Pablu23 <43807157+Pablu23@users.noreply.github.com>

TicTacToe/Game.cs

@@ -4,7 +4,7 @@ using TicTacToe.Players;
 namespace TicTacToe
 {
     //Class on which every game bases on (Only TicTacToe atm)
-    abstract class Game
+    public abstract class Game
     {
         protected readonly List<Player> Players = new List<Player>();
         protected readonly Dictionary<Player, int> Scores = new Dictionary<Player, int>();

TicTacToe/Program.cs

@@ -24,7 +24,7 @@ namespace TicTacToe
                 Console.WriteLine("[S]tart Game");
                 Console.WriteLine("[E]nd");
 
-                char input = GetCharInput(new[] { 'c', 's', 'e', 'n' });
+                char input = GetCharInput(new[] { 'c', 's', 'e', 'n', 'o' });
 
                 switch (input)
                 {
@@ -45,6 +45,21 @@ namespace TicTacToe
                         break;
                     case 'n':
                         ticTacToe = new TicTacToe();
+                        break;
+                    case 'o':
+                        string hosting = Console.ReadLine();
+                        var test = new TicTacToeOnline();
+                        if (hosting == "t")
+                        {
+                            test.IsServer(true);
+                        }
+                        else
+                        {
+                            test.IsServer(false);
+                        }
+                        
+                        test.StartGame();
+                        
                         break;
                 }
 

TicTacToe/TicTacToe.cs

@@ -4,11 +4,11 @@ using TicTacToe.Players;
 
 namespace TicTacToe
 {
-    class TicTacToe : Game
+    public class TicTacToe : Game
     {
-        private TicTacToeBoard _board;
+        protected TicTacToeBoard Board;
 
-        private bool _gameFinished;
+        protected bool GameFinished;
 
         private void RemovePlayer(Player player)
         {
@@ -74,9 +74,9 @@ namespace TicTacToe
         // Check if the game is finished, and if so add Scores and more for LearningAi
         public override void CheckGameState()
         {
-            if (!_board.IsGameFinished(out var winnerState)) return;
+            if (!Board.IsGameFinished(out var winnerState)) return;
             
-            _gameFinished = true;
+            GameFinished = true;
             
             // Get the winner (Player? <- ? because the player could be null)
             var winner = Players.FirstOrDefault(x => x.Symbol == winnerState);
@@ -88,7 +88,7 @@ namespace TicTacToe
                 var player = Players.FirstOrDefault(x => x.GetType() == typeof(LearningAiPlayer));
                 var learningAiPlayer = player as LearningAiPlayer;
                 if (learningAiPlayer != null) 
-                    learningAiPlayer.SaveToJson(_board);
+                    learningAiPlayer.SaveToJson(Board);
             }
             CleanUp();
         }
@@ -96,14 +96,14 @@ namespace TicTacToe
         public override void StartGame()
         {
             if (Players.Count != 2) throw new Exception("Not enough, or too many Players");
-            _board = new TicTacToeBoard();
+            Board = new TicTacToeBoard();
             
             // Draw the Board so the first Player can see it
-            _board.DrawBoard();
-            _gameFinished = false;
+            Board.DrawBoard();
+            GameFinished = false;
             int round = 0;
             
-            while (_gameFinished != true)
+            while (GameFinished != true)
             {
                 // For both Players
                 for (int i = 0; i < 2; i++)
@@ -113,14 +113,14 @@ namespace TicTacToe
                     bool placed;
                     do
                     {
-                        placed = _board.TryPlace(Players[i].MakeMove(_board), Players[i], round);
+                        placed = Board.TryPlace(Players[i].MakeMove(Board), Players[i], round);
                     } while (!placed);
                     
                     round++;
-                    _board.DrawBoard();
+                    Board.DrawBoard();
                     CheckGameState();
                     //Dont let the second Player make his turn if the game is already finished
-                    if (_gameFinished) break;
+                    if (GameFinished) break;
                 }
             }
         }

TicTacToe/TicTacToeOnline.cs

@@ -0,0 +1,170 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+using Newtonsoft.Json;
+using TicTacToe.Players;
+
+namespace TicTacToe
+{
+    public class TicTacToeOnline : TicTacToe
+    {
+        private bool _isServer = false;
+        private int _port = 6969;
+        private string _ipAddress = "127.0.0.1";
+        private Socket _client;
+
+        private int _clientPlayerId = -1;
+        
+        public override void AddPlayer(Player player)
+        {
+            if (player.GetType() != typeof(HumanPlayer))
+                throw new Exception("Online Play is only available with human Players");
+            base.AddPlayer(player);
+        }
+
+        public void IsServer(bool x)
+        {
+            _isServer = x;
+        }
+        
+        public override void StartGame()
+        {
+            if (_isServer)
+            {
+                StartServer();
+
+                if (Players.Count != 2) throw new Exception("Not enough, or too many Players");
+                Board = new TicTacToeBoard();
+                string ticTacToeBoardJson = JsonConvert.SerializeObject(Board);
+                SendData(ticTacToeBoardJson);
+                
+            }
+            else
+            {
+                ConnectToServer();
+                
+                if (Players.Count != 2) throw new Exception("Not enough, or too many Players");
+                string ticTacToeBoardJson = ReceiveData();
+                Board = JsonConvert.DeserializeObject<TicTacToeBoard>(ticTacToeBoardJson);
+            }
+            
+            Board.DrawBoard();
+            GameFinished = false;
+            int round = 0;
+
+            while (GameFinished != true)
+            {
+                // For both Players
+                for (int i = 0; i < 2; i++)
+                {
+                    if (i == _clientPlayerId)
+                    {
+                        bool placed;
+                        do
+                        {
+                            placed = Board.TryPlace(Players[i].MakeMove(Board), Players[i], round);
+                        } while (!placed);
+                        
+                        string newBoardJson = JsonConvert.SerializeObject(Board);
+                        SendData(newBoardJson);
+                    }
+                    else
+                    {
+                        string data = ReceiveData();
+                        Board = JsonConvert.DeserializeObject<TicTacToeBoard>(data);
+                    }
+                    
+                    round++;
+                    Board.DrawBoard();
+                    CheckGameState();
+                    //Dont let the second Player make his turn if the game is already finished
+                    if (GameFinished) break;
+                }
+            }
+        }
+
+        private void SendData(string data)
+        {
+            data += "<EOF>";
+            Console.WriteLine("Sending Data: " + data);
+            byte[] bytes = Encoding.ASCII.GetBytes(data);
+            _client.Send(bytes);
+        }
+        
+        private string ReceiveData()
+        {
+            string data = null;
+            byte[] bytes = null;
+
+            Console.WriteLine("Receiving Data");
+            
+            while (true)
+            {
+                bytes = new byte[1024];
+                int bytesRec = _client.Receive(bytes);
+                data += Encoding.UTF8.GetString(bytes, 0, bytesRec);
+                Console.WriteLine("Data: " + data);
+                if (data.IndexOf("<EOF>") > -1)
+                {
+                    break;
+                }
+            }
+            
+            Console.WriteLine("Data Received, returning");
+            
+            return data;
+        }
+        
+        private void ConnectToServer()
+        {
+            IPHostEntry host = Dns.GetHostEntry(_ipAddress);
+            IPAddress ipAddress = host.AddressList[0];
+            IPEndPoint remoteEndPoint = new IPEndPoint(ipAddress, _port);
+
+            _client = new Socket(ipAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
+
+            _client.Connect(remoteEndPoint);
+
+            Console.WriteLine("connected");
+            
+            string data = ReceiveData();
+
+            HumanPlayer opponent = JsonConvert.DeserializeObject<HumanPlayer>(data);
+            AddPlayer(opponent);
+            HumanPlayer player = new HumanPlayer("Client",
+                opponent.Symbol == FieldState.PlayerX ? FieldState.PlayerO : FieldState.PlayerX);
+            AddPlayer(player);
+
+            string playerJson = JsonConvert.SerializeObject(player);
+            SendData(playerJson);
+            _clientPlayerId = 0;
+        }
+
+        private void StartServer()
+        {
+            IPHostEntry host = Dns.GetHostEntry(_ipAddress);
+            IPAddress ipAddress = host.AddressList[0];
+            IPEndPoint localEndPoint = new IPEndPoint(ipAddress, _port);
+            Socket server = new Socket(ipAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
+            server.Bind(localEndPoint);
+            server.Listen(1);
+
+            _client = server.Accept();
+
+            Console.WriteLine("A Client connected");
+            
+            var player = new HumanPlayer("Server", FieldState.PlayerX);
+            AddPlayer(player);
+            
+            string playerJson = JsonConvert.SerializeObject(player);
+            SendData(playerJson);
+
+            string data = ReceiveData();
+            var opponent = JsonConvert.DeserializeObject<HumanPlayer>(data);
+            
+            AddPlayer(opponent);
+            _clientPlayerId = 1;
+        }
+    }
+}