[ADDITION] Added username tests, as well as random word tests.

[ADDITION] added a new property to the user (may be removed later on)…

Client/Client.cs

@@ -214,6 +214,17 @@ namespace Client
                 default:
                     Debug.WriteLine("[CLIENT] Received weird identifier: " + id);
                     break;
+                case JSONConvert.GAME:
+                    switch (JSONConvert.GetGameCommand(payload))
+                    {
+                        case JSONConvert.GameCommand.TIMER_ELAPSED:
+                            int lobbyElapsedID = JSONConvert.GetLobbyID(payload);
+                            
+                            //todo set next round
+                            break;
+                        
+                    }
+                    break;
             }
             SendMessage(JSONConvert.GetMessageToSend(JSONConvert.MESSAGE_RECEIVED, null));
 

Client/ViewModels/LoginViewModel.cs

@@ -0,0 +1,37 @@
+using SharedClientServer;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows;
+
+namespace Client.ViewModels
+{
+
+    class LoginViewModel
+    {
+        ClientData data = ClientData.Instance;
+        private Window window;
+
+        public LoginViewModel(Window window)
+        {
+            this.window = window;
+        }
+        public void UsernameEntered(string name) {
+            User user = new User(name);
+
+            Client client = new Client(user.Username);
+            client.OnSuccessfullConnect = () =>
+            {
+                // because we need to start the main window on a UI thread, we need to let the dispatcher handle it, which will execute the code on the ui thread
+                Application.Current.Dispatcher.Invoke(delegate {
+                    data.User = user;
+                    data.Client = client;
+                    client.SendMessage(JSONConvert.ConstructLobbyRequestMessage());
+                    MainWindow startWindow = new MainWindow();
+                    startWindow.Show();
+                    window.Close();
+                });
+            };
+        }
+    }
+}

Client/ViewModels/ViewModelGame.cs

@@ -34,6 +34,7 @@ namespace Client.ViewModels
 
         public string _username;
 
+
         public string _message;
         public string Message
         {
@@ -74,6 +75,16 @@ namespace Client.ViewModels
             data.Client.IncomingMsg = HandleIncomingMsg;
             data.Client.IncomingPlayer = HandleIncomingPlayer;
             data.Client.UpdateUserScores = UpdateUserScores;
+
+            Application.Current.Dispatcher.Invoke(delegate
+            {
+                Messages.Clear();
+            });
+
+
+                queueTimer = new Timer(50);
+            queueTimer.Start();
+            queueTimer.Elapsed += sendArrayFromQueue;
         }
 
         public ICommand OnKeyDown { get; set; }
@@ -83,9 +94,6 @@ namespace Client.ViewModels
         public void BeginGame()
         {
     
-            queueTimer = new Timer(50);
-            queueTimer.Start();
-            queueTimer.Elapsed += sendArrayFromQueue;
             data.Client.SendMessage(JSONConvert.ConstructGameStartData(data.Lobby.ID));
         }
 
@@ -93,7 +101,7 @@ namespace Client.ViewModels
         private void CanvasResetLocal()
         {
             this.window.CanvasForPaint.Children.Clear();
-            data.Client.SendMessage(JSONConvert.GetMessageToSend(JSONConvert.CANVAS, JSONConvert.CANVAS_RESET));
+            data.Client.SendMessage(JSONConvert.ConstructCanvasReset());
         }
 
 
@@ -185,8 +193,11 @@ namespace Client.ViewModels
         }
 
         private void CanvasResetData()
+        {
+            Application.Current.Dispatcher.Invoke(delegate
             {
                 this.window.CanvasForPaint.Children.Clear();
+            });
         }
 
         private void ChatBox_KeyDown()

Client/Views/GameWindow.xaml

@@ -40,10 +40,10 @@
 
             <Label Name="GuessWord" Grid.Row="0" Grid.Column="2" Content="{Binding Path=RandomWord, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Center" HorizontalAlignment="Center" FontSize="20"/>
 
-            <Button Name="CanvasReset" Click="CanvasReset_Click" Grid.Row="0" Grid.Column="3" Content="RESET"/>
+            <Button Name="CanvasReset" Command="{Binding ButtonResetCanvas}" Grid.Row="0" Grid.Column="3" Content="RESET"/>
         </Grid>
 
-        <Button Name="StartGame" Grid.Row="0" Grid.Column="2" Content="Start Game" FontSize="20" Command="{Binding ButtonStartGame}" IsEnabled="{Binding IsHost}"/>
+        
 
 
         <Border Grid.Row="1" Grid.Column="1" Margin ="10,10,10,10" BorderBrush="Black" BorderThickness ="2.5">

Client/Views/LoginScreen.xaml

@@ -25,7 +25,5 @@
 
         <TextBox Name="usernameTextbox" Grid.Row="1" Grid.Column="1" MaxLength="69" FontSize="30" VerticalAlignment="Center" HorizontalAlignment="Left" Width="250"/>
         <Button Name="LoginButton" Content="ENTER" Grid.Column="1" Grid.Row="1" VerticalAlignment="Center" HorizontalAlignment="Right" Width="100" Height="40" Click="Button_EnterUsername"/>
-
-        <Label Grid.Row="3" Grid.Column="0" Content="Tip of the century: base64 != UTF8!" FontSize="20" FontWeight="Bold"/>
     </Grid>
 </Window>

Eindproject/Client2/Client2.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\Client\Client.csproj" />
+  </ItemGroup>
+
+</Project>

Eindproject/Client2/Program.cs

@@ -0,0 +1,14 @@
+using System;
+
+namespace Client2
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            Client.App app = new Client.App();
+            app.Run();
+           
+        }
+    }
+}

Eindproject/Eindproject.sln

@@ -9,6 +9,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Client", "..\Client\Client.
 EndProject
 Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "SharedClientServer", "..\SharedClientServer\SharedClientServer.shproj", "{6D26F969-9CB1-414F-AC3E-7253D449AC5A}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Tests", "Tests\Tests.csproj", "{4CB2CD76-07D9-44D0-A559-A7A301621D30}"
+EndProject
 Global
 	GlobalSection(SharedMSBuildProjectFiles) = preSolution
 		..\SharedClientServer\SharedClientServer.projitems*{67a9bf1a-d317-47ca-9f07-c3480d1360ff}*SharedItemsImports = 5
@@ -28,6 +30,10 @@ Global
 		{83768EDB-097E-4089-A5DE-208CB252D1A0}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{83768EDB-097E-4089-A5DE-208CB252D1A0}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{83768EDB-097E-4089-A5DE-208CB252D1A0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4CB2CD76-07D9-44D0-A559-A7A301621D30}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4CB2CD76-07D9-44D0-A559-A7A301621D30}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4CB2CD76-07D9-44D0-A559-A7A301621D30}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4CB2CD76-07D9-44D0-A559-A7A301621D30}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Eindproject/TestHelper/Helper.cs

@@ -0,0 +1,10 @@
+using SharedClientServer;
+using System;
+
+namespace TestHelper
+{
+    public class Helper
+    {
+        public static JSONConvert JSONConvert;
+    }
+}

Eindproject/TestHelper/TestHelper.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <Import Project="..\..\SharedClientServer\SharedClientServer.projitems" Label="Shared" />
+
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+  </ItemGroup>
+
+</Project>

Eindproject/Tests/JSONConvertGetMessageToSendTest.cs

@@ -0,0 +1,77 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Newtonsoft.Json;
+using SharedClientServer;
+using System;
+using System.Diagnostics;
+using System.Text;
+using Xunit.Sdk;
+
+namespace Tests
+{
+    
+    [TestClass]
+    public class JSONConvertGetMessageToSendTest
+    {
+
+        private byte[] testArray1()
+        {
+            byte identifier = 0x01;
+            dynamic payload = new
+            {
+                value = "test"
+            };
+
+            byte[] result = JSONConvert.GetMessageToSend(identifier, payload);
+            return result;
+        }
+        
+        [TestMethod]
+        public void TestGetMessageToSendLength()
+        {
+            
+            byte identifier = 0x01;
+            dynamic payload = new
+            {
+                value = "test"
+            };
+            string payloadToJson = JsonConvert.SerializeObject(payload);
+            byte[] payloadToBytes = Encoding.UTF8.GetBytes(payloadToJson);
+
+            byte[] result = JSONConvert.GetMessageToSend(identifier, payload);
+            Assert.AreEqual(payloadToBytes.Length + 5, result.Length);
+        }
+
+        [TestMethod]
+        public void TestGetMessageToSendIdentifier()
+        {
+            byte[] result = testArray1();
+            Assert.AreEqual(0x01, result[4]);
+        }
+
+        [TestMethod]
+        public void TestGetMessageToSendMessageLength()
+        {
+
+            byte identifier = 0x01;
+            dynamic payload = new
+            {
+                value = "test"
+            };
+
+            string json = JsonConvert.SerializeObject(payload);
+            byte[] payloadBytes = Encoding.UTF8.GetBytes(json);
+            byte[] res = new byte[payloadBytes.Length + 5];
+            Array.Copy(payloadBytes, 0, res, 5, payloadBytes.Length);
+            res[4] = identifier;
+            Array.Copy(BitConverter.GetBytes(payloadBytes.Length + 5), 0, res, 0, 4);
+            int lengthTest = BitConverter.ToInt32(res, 0);
+            byte[] result = testArray1();
+            int lengthResult = BitConverter.ToInt32(result, 0);
+
+            Assert.AreEqual(lengthTest, lengthResult);
+
+        }
+
+
+    }
+}

Eindproject/Tests/JSONConvertRandomWord.cs

@@ -0,0 +1,59 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Newtonsoft.Json;
+using SharedClientServer;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Tests
+{
+    [TestClass]
+    public class JSONConvertRandomWord
+    {
+        public byte[] GetPayload(byte[] message)
+        {
+            byte[] payload = new byte[message.Length - 5];
+            Array.Copy(message, 5, payload, 0, message.Length - 5);
+            return payload;
+        }
+
+        public byte[] RandomWord()
+        {
+            byte identifier = 0x07;
+            dynamic payload = new
+            {
+                word = "teacher"
+            };
+
+            byte[] res = JSONConvert.GetMessageToSend(identifier, payload);
+
+            return res;
+        }
+
+        public dynamic GetDynamic(byte[] payload)
+        {
+            return JsonConvert.DeserializeObject(Encoding.UTF8.GetString(GetPayload(payload)));
+        }
+
+        [TestMethod]
+        public void TestSendRandomWord()
+        {
+            string randomWord = JSONConvert.SendRandomWord("WordsForGame.json");
+
+            string result = "teacher";
+            
+            Assert.AreEqual(result, randomWord);
+        }
+
+        [TestMethod]
+        public void TestGetRandomWord()
+        {
+            byte[] data = GetPayload(RandomWord());
+            string result = JSONConvert.GetRandomWord(data);
+
+            string word = "teacher";
+
+            Assert.AreEqual(word, result);
+        }
+    }
+}

Eindproject/Tests/JSONConvertUserMessages.cs

@@ -0,0 +1,89 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Newtonsoft.Json;
+using SharedClientServer;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Tests
+{
+    [TestClass]
+    public class JSONConvertUserMessages
+    {
+
+        public byte[] GetPayload(byte[] message)
+        {
+            byte[] payload = new byte[message.Length - 5];
+            Array.Copy(message, 5, payload, 0, message.Length - 5);
+            return payload;
+        }
+
+        public dynamic GetDynamic(byte[] payload)
+        {
+            return JsonConvert.DeserializeObject(Encoding.UTF8.GetString(GetPayload(payload)));
+        }
+
+        private byte[] ComboArray()
+        {
+            byte identifier = 0x02;
+            dynamic payload = new
+            {
+                username = "testName",
+                message = "message"
+            };
+
+            byte[] result = JSONConvert.GetMessageToSend(identifier, payload);
+
+            return result;
+        }
+
+        private byte[] LoginArray()
+        {
+            byte identifier = 0x01;
+            dynamic payload = new
+            {
+                username = "testname"
+            };
+
+            byte[] result = JSONConvert.GetMessageToSend(identifier, payload);
+
+            return result;
+        }
+
+        [TestMethod]
+        public void TestGetUsernameAndMessage()
+        {
+            byte[] data = GetPayload(ComboArray());
+            (string,string) result = JSONConvert.GetUsernameAndMessage(data);
+
+            (string, string) testCombo = ("testName", "message");
+
+            Assert.AreEqual(testCombo, result);
+        }
+
+        [TestMethod]
+        public void TestGetUsernameLogin()
+        {
+            byte[] data = GetPayload(LoginArray());
+            string result = JSONConvert.GetUsernameLogin(data);
+            string username = "testname";
+
+            Assert.AreEqual(username, result);
+        }
+
+        [TestMethod]
+        public void TestConstructUsernameMessage()
+        {
+            byte[] res = JSONConvert.ConstructUsernameMessage("testname");
+            dynamic payload = GetDynamic(res);
+
+            string username = "testname";
+
+            Assert.AreEqual(0x01, res[4]);
+            Assert.AreEqual(username, (string)payload.username);
+        }
+
+
+
+    }
+}

Eindproject/Tests/Tests.csproj

@@ -0,0 +1,35 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Remove="resources\WordsForGame.json" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="resources\WordsForGame.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Extended.Wpf.Toolkit" Version="4.0.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.1.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />
+    <PackageReference Include="coverlet.collector" Version="1.3.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="xunit.extensibility.execution" Version="2.4.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\Client\Client.csproj" />
+  </ItemGroup>
+
+</Project>

Eindproject/Tests/resources/WordsForGame.json

@@ -0,0 +1,31 @@
+{
+  "filename": "wordsForGame",
+  "words": [
+    "teacher",
+    "love",
+    "engineer",
+    "supermarket",
+    "disaster",
+    "studio",
+    "restaurant",
+    "music",
+    "chocolate",
+    "dirt",
+    "thought",
+    "virus",
+    "lieutenant",
+    "painter",
+    "kiwi",
+    "power ranger",
+    "computer",
+    "people",
+    "candidate",
+    "security guard",
+    "Canada",
+    "teeth",
+    "army",
+    "airport",
+    "president",
+    "bedroom"
+  ]
+}

Server/Models/ServerClient.cs

@@ -11,6 +11,7 @@ using System.Net.Sockets;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
+using System.Timers;
 using static SharedClientServer.JSONConvert;
 
 namespace Server.Models
@@ -24,6 +25,7 @@ namespace Server.Models
         private byte[] totalBuffer = new byte[2048];
         private string _randomWord = "";
         private int totalBufferReceived = 0;
+        private Dictionary<System.Timers.Timer, int> lobbyTimers;
         public User User { get; set; }
         private ServerCommunication serverCom = ServerCommunication.INSTANCE;
         private Callback OnMessageReceivedOk;
@@ -35,6 +37,7 @@ namespace Server.Models
         /// <param name="client">the TcpClient object to use</param>
         public ServerClient(TcpClient client)
         {
+            lobbyTimers = new Dictionary<System.Timers.Timer, int>();
             Debug.WriteLine("[SERVERCLIENT] making new instance and starting");
             tcpClient = client;
             stream = tcpClient.GetStream();
@@ -173,13 +176,14 @@ namespace Server.Models
                                 coords = JSONConvert.getCoordinates(payload),
                                 color = JSONConvert.getCanvasDrawingColor(payload)
                             };
-                            serverCom.SendToLobby(serverCom.GetLobbyForUser(User),JSONConvert.GetMessageToSend(JSONConvert.CANVAS,canvasData));
+                            //serverCom.SendToLobby(serverCom.GetLobbyForUser(User),JSONConvert.GetMessageToSend(JSONConvert.CANVAS,canvasData));
+                            serverCom.SendCanvasDataToLobby(serverCom.GetLobbyForUser(User), User.Username, JSONConvert.GetMessageToSend(JSONConvert.CANVAS, canvasData));
                             break;
 
                         case JSONConvert.CANVAS_RESET:
                             dynamic canvasDataForReset = new
                             {
-                                type = JSONConvert.GetCanvasMessageType(payload)
+                                canvasType = JSONConvert.GetCanvasMessageType(payload)
                             };
                             serverCom.SendToLobby(serverCom.GetLobbyForUser(User), JSONConvert.GetMessageToSend(CANVAS, canvasDataForReset));
                             break;
@@ -192,14 +196,35 @@ namespace Server.Models
 
                 case JSONConvert.GAME:
                     Debug.WriteLine("[SERVERCLIENT] Got a message about the game logic");
-                    string command = JSONConvert.GetGameCommand(payload);
+                    GameCommand command = JSONConvert.GetGameCommand(payload);
                     switch (command)
                     {
-                        case "startGame":
+                        case GameCommand.START_GAME:
                             int lobbyID = JSONConvert.GetStartGameLobbyID(payload);
                             serverCom.CloseALobby(lobbyID);
+                            //todo start a timer for this lobby
+                            Debug.WriteLine("[SERVERCLIENT] making timer for lobby " + lobbyID);
+                            System.Timers.Timer lobbyTimer = new System.Timers.Timer(60 * 1000);
+                            this.lobbyTimers.Add(lobbyTimer, lobbyID);
+                            lobbyTimer.Elapsed += LobbyTimer_Elapsed;
+                            lobbyTimer.Start();
                             ServerCommunication.INSTANCE.sendToAll(JSONConvert.ConstructLobbyListMessage(ServerCommunication.INSTANCE.lobbies.ToArray()));
                             break;
+                        case GameCommand.TIMER_ELAPSED:
+                            
+                            break;
+                        case GameCommand.NEXT_ROUND:
+                            // The next round has been started, so we can start the timer again
+                            lobbyID = JSONConvert.GetLobbyID(payload);
+                            foreach (System.Timers.Timer timer in lobbyTimers.Keys)
+                            {
+                                if (lobbyTimers[timer] == lobbyID)
+                                {
+                                    timer.Start();
+                                    break;
+                                }
+                            }
+                            break;
                     }
 
                     break;
@@ -217,6 +242,17 @@ namespace Server.Models
             }
         }
 
+        private void LobbyTimer_Elapsed(object sender, ElapsedEventArgs e)
+        {
+            System.Timers.Timer timer = sender as System.Timers.Timer;
+            int lobbyID = lobbyTimers[timer];
+            Debug.WriteLine("[SERVERCLIENT] timer elapsed for lobby " + lobbyID);
+            serverCom.SendToLobby(lobbyID, JSONConvert.ConstructGameTimerElapsedMessage(lobbyID));
+            timer.Stop();
+            
+
+        }
+
         private void handleLobbyMessage(byte[] payload, LobbyIdentifier l)
         {
             switch (l)

Server/Models/ServerCommunication.cs

@@ -142,7 +142,23 @@ namespace Server.Models
                 {
                     foreach (ServerClient sc in serverClientsInlobbies[l])
                     {
-                        Debug.WriteLine("[SERVERCLIENT] Sending message");
+                        Debug.WriteLine("[SERVERCLIENT] Sending message to lobby");
+                        sc.sendMessage(message);
+                    }
+                    break;
+                }
+            }
+        }
+
+        public void SendToLobby(int lobbyID, byte[] message)
+        {
+            foreach (Lobby l in lobbies)
+            {
+                if (l.ID == lobbyID)
+                {
+                    foreach (ServerClient sc in serverClientsInlobbies[l])
+                    {
+                        Debug.WriteLine("[SERVERCLIENT] Sending message to lobby");
                         sc.sendMessage(message);
                     }
                     break;
@@ -158,6 +174,7 @@ namespace Server.Models
                 {
                     foreach (ServerClient sc in serverClientsInlobbies[l])
                     {
+                        if (sc.User.Username != username)
                             sc.sendMessage(message);
                     }
                     break;
@@ -261,6 +278,10 @@ namespace Server.Models
                                     break;
                                 }
                             }
+                            if (l.Users.Count != 0)
+                            {
+                                l.Users[0].Host = true;
+                            }
                             break;
                         }
                     }

SharedClientServer/JSONConvert.cs

@@ -2,16 +2,14 @@ using Client;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using System;
-using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
-using System.Linq;
 using System.Text;
 using System.Windows.Media;
 
 namespace SharedClientServer
 {
-    class JSONConvert
+    public class JSONConvert
     {
         public const byte LOGIN = 0x01;
         public const byte MESSAGE = 0x02;
@@ -24,7 +22,6 @@ namespace SharedClientServer
         public const int CANVAS_WRITING = 0;
         public const int CANVAS_RESET = 1;
 
-
         public enum LobbyIdentifier
         {
             HOST,
@@ -35,7 +32,14 @@ namespace SharedClientServer
             REQUEST
         }
 
-        public static (string,string) GetUsernameAndMessage(byte[] json)
+        public enum GameCommand
+        {
+            START_GAME,
+            TIMER_ELAPSED,
+            NEXT_ROUND
+        }
+
+        public static (string, string) GetUsernameAndMessage(byte[] json)
         {
             string msg = Encoding.UTF8.GetString(json);
             dynamic payload = JsonConvert.DeserializeObject(msg);
@@ -43,6 +47,14 @@ namespace SharedClientServer
             return (payload.username, payload.message);
         }
 
+        internal static byte[] ConstructCanvasResetMessage()
+        {
+            return GetMessageToSend(CANVAS, new
+            {
+                canvasType = CANVAS_RESET
+            });
+        }
+
         public static string GetUsernameLogin(byte[] json)
         {
             dynamic payload = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(json));
@@ -73,7 +85,7 @@ namespace SharedClientServer
             {
                 identifier = LobbyIdentifier.HOST,
                 id = lobbyID
-            }) ;
+            });
         }
 
         public static byte[] ConstructLobbyRequestMessage()
@@ -93,7 +105,6 @@ namespace SharedClientServer
             });
         }
 
-
         public static byte[] ConstructLobbyJoinMessage(int lobbyID)
         {
             return GetMessageToSend(LOBBY, new
@@ -111,6 +122,7 @@ namespace SharedClientServer
                 id = lobbyID
             });
         }
+
         public static LobbyIdentifier GetLobbyIdentifier(byte[] json)
         {
             dynamic payload = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(json));
@@ -146,8 +158,11 @@ namespace SharedClientServer
 
         public static byte[] ConstructLobbyJoinSuccessMessage(bool isHost)
         {
-            return GetMessageToSend(LOBBY, new { identifier = LobbyIdentifier.JOIN_SUCCESS,
-            host = isHost});
+            return GetMessageToSend(LOBBY, new
+            {
+                identifier = LobbyIdentifier.JOIN_SUCCESS,
+                host = isHost
+            });
         }
 
         public static bool GetLobbyJoinIsHost(byte[] json)
@@ -156,11 +171,10 @@ namespace SharedClientServer
             return payload.host;
         }
 
-        #endregion
+        #endregion lobby messages
 
         public static byte[] ConstructCanvasDataSend(int typeToSend, double[][] buffer, Color colorToSend)
         {
-            
             return GetMessageToSend(CANVAS, new
             {
                 canvasType = typeToSend,
@@ -179,6 +193,15 @@ namespace SharedClientServer
             });
         }
 
+        public static byte[] ConstructCanvasReset()
+        {
+            dynamic payload = new
+            {
+                canvasType = CANVAS_RESET
+            };
+            return GetMessageToSend(CANVAS, payload);
+        }
+
         public static int GetCanvasMessageType(byte[] json)
         {
             dynamic d = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(json));
@@ -205,15 +228,23 @@ namespace SharedClientServer
 
         public static byte[] ConstructGameStartData(int lobbyID)
         {
-            string startGame = "startGame";
             return GetMessageToSend(GAME, new
             {
-                command = startGame,
+                command = GameCommand.START_GAME,
                 lobbyToStart = lobbyID
             }); ;
         }
 
-        public static string GetGameCommand(byte[] payload)
+        public static byte[] ConstructGameTimerElapsedMessage(int lobbyID)
+        {
+            return GetMessageToSend(GAME, new
+            {
+                command = GameCommand.TIMER_ELAPSED,
+                id = lobbyID
+            });
+        }
+
+        public static GameCommand GetGameCommand(byte[] payload)
         {
             dynamic json = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(payload));
             return json.command;
@@ -243,13 +274,14 @@ namespace SharedClientServer
             // put the identifier at the start of the payload part
             res[4] = identifier;
             // put the length of the payload at the start of the res array
-            Array.Copy(BitConverter.GetBytes(payloadBytes.Length+5),0,res,0,4);
+            Array.Copy(BitConverter.GetBytes(payloadBytes.Length + 5), 0, res, 0, 4);
             return res;
         }
 
         /*
     * This method sends a random word from the json file, this happens when the client joins a lobby.
     */
+
         public static string SendRandomWord(string filename)
         {
             dynamic words;
@@ -258,29 +290,27 @@ namespace SharedClientServer
             string projDir = Directory.GetParent(workingDir).Parent.Parent.FullName;
             string filePath = projDir += $@"\resources\{filename}";
 
-            using(StreamReader reader = new StreamReader(filePath))
+            using (StreamReader reader = new StreamReader(filePath))
             {
                 string json = reader.ReadToEnd();
                 words = JsonConvert.DeserializeObject(json);
             }
 
-
             int index = random.Next(0, 24);
 
             Debug.WriteLine($"[SERVERCLIENT] Sending random words {words}");
 
-            return words.words[index];
+            return words.words[0];
         }
 
         /*
          * Client gets the payload and retrieves the word from the payload
          */
+
         public static string GetRandomWord(byte[] json)
         {
             dynamic payload = JsonConvert.DeserializeObject(Encoding.ASCII.GetString(json));
             return payload.word;
         }
-
-        
     }
 }

SharedClientServer/Lobby.cs

@@ -6,7 +6,7 @@ using System.Text;
 
 namespace Client
 {
-    internal class Lobby : INotifyPropertyChanged
+    public class Lobby : INotifyPropertyChanged
     {
         public event PropertyChangedEventHandler PropertyChanged;
 

SharedClientServer/User.cs

@@ -6,7 +6,7 @@ using System.Text;
 
 namespace SharedClientServer
 {
-    class User : IEquatable<User>
+    public class User : IEquatable<User>
     {
         private string _username;
         private int _score;