public void AddMember(Client memberToAdd)
{
lock (roomLock)
{
_members.Add(memberToAdd);
}
}
public void AddMemberToRoom(Client roomHost, ref Client memberToAdd)
{
Room room;
lock (_roomListLock)
{
room = _roomList.FirstOrDefault(myRoom => myRoom.Host == roomHost);
}
if (room == null) return;
//
// First, remove the member from his previous room.
//
RemoveMemberfromRoom(memberToAdd.Room.Host, memberToAdd);
//
// Now add the member to the new room.
//
room.Members.Add(memberToAdd);
memberToAdd.Room = room;
//
// Send a message to all the existing members in the room indicating who has joined.
//
MessageSender.BroadcastMessage(
room.Members,
PacketType.s_UserJoinedRoom,
memberToAdd.UserInfo,
memberToAdd);
//
// Now send a message to the person who has joined containing the list of room
// members.
//
var friendList = new FriendList();
foreach (var c in room.Members)
{
friendList.Friends.Add(c.UserInfo);
}
MessageSender.SendMessage(
memberToAdd,
PacketType.s_RoomList,
friendList);
//
// Now tell the joining person who the room host is.
//
MessageSender.SendMessage(
memberToAdd,
PacketType.s_HostTransfer,
room.Host.UserInfo);
}
internal Room(Client host)
{
_host = host;
_members = new List<Client> {_host};
_clientsReadyForGame = new List<Client>();
roomLock = new object();
}
/// <summary>
/// Sends a message to everyone on the list of the recipients, with the exception of the
/// sender client, as you don't want to send a message to yourself.
/// </summary>
/// <param name="recipients"></param>
/// <param name="packetType"></param>
/// <param name="data"></param>
/// <param name="sender">Client that is sending this message, set to null if this is not a
/// user-initiated message</param>
public static void BroadcastMessage(IEnumerable<Client> recipients, PacketType packetType, object data, Client sender)
{
foreach (var c in recipients)
{
if (c != sender)
{
SendMessage(c, packetType, data);
}
}
}
public void Initialize()
{
//
// Generate the client manager and add a number of clients to the server.
//
clientManager = ClientManager.GetInstance();
for (int i = 0; i < k_clientCount; i++)
{
var newClient = new Client(null);
newClient.UserInfo.EmailAddress = "TestUser" + i.ToString();
clientManager.AddClient(newClient);
}
}
public void AddClient(Client client)
{
lock (clientListLock)
{
_globalClientList.Add(client);
}
var db = Database.GetInstance();
var user = db.GetUserByEmail(client.UserInfo.EmailAddress);
if (user == null)
{
return;
}
var friend = MessageReceiver.GetFriendFromUser(user);
//
// Send a message saying that the user logged on to all of his friends who are online.
//
var friends = db.GetFriends(client.UserInfo.EmailAddress);
var onlineFriends = new List<Client>();
if (friends == null)
{
return;
}
foreach (user frd in friends)
{
var c = GetClientFromEmailAddress(frd.email);
if (null != c)
{
onlineFriends.Add(c);
}
}
MessageSender.BroadcastMessage(
onlineFriends,
PacketType.s_UserLoggedIn,
friend,
client);
}
/// <summary>
/// TCP thread that listens for incoming connections.
/// </summary>
public static async void TcpListenerProcess()
{
Trace.WriteLine("TCP: Starting TcpListener...");
//IPAddress addr = IPAddress.Loopback;
try
{
#if DEBUG
const int port = 4032;
var addr = new IPAddress(new byte[] { 192, 168, 1, 2 });
var listener = new TcpListener(addr, port);
Trace.WriteLine(string.Format("TCP: Listening on {0}:{1}...", addr, port));
#else
var listener = new TcpListener(
RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["Endpoint1"].IPEndpoint);
listener.ExclusiveAddressUse = false;
#endif
listener.Start();
while (true)
{
var socket = await listener.AcceptSocketAsync();
var newClient = new Client(socket);
newClient.OnDisconnected += OnClientDisconnected;
//WorkerRole.ClientManager.GlobalClientList.Add(newClient);
newClient.ReceiveAsync();
}
}
catch (Exception e)
{
Trace.WriteLine(string.Format("TCP: Caught exception!! '{0}'\n{1}", e.Message, e.StackTrace));
Trace.WriteLine("TcpListener shutting down.");
}
}
public void HandleMessage(ref Client client, byte[] msgBytes)
{
var packetBase = new PacketBase();
using (var stream = new MemoryStream(msgBytes))
{
try
{
var reader = new BinaryReader(stream);
packetBase.Read(reader);
}
catch (Exception e)
{
#if DEBUG
throw;
#else
Trace.WriteLine(string.Format("[IncomingMessageHandler.HandleMessage] - " +
"Invalid packet from client! Deserialization failed: {0}, Trace: {1}",
e.Message,
e.StackTrace));
#endif
}
}
var handler = PacketHandlerFactory.GetPacketHandler(packetBase);
if (handler != null)
{
handler.DoActions(ref client);
}
}
public void RemoveMember(Client memberToRemove)
{
lock (roomLock)
{
var member =
_members.FirstOrDefault(m => m.UserInfo.EmailAddress == memberToRemove.UserInfo.EmailAddress);
if (null != member)
{
_members.Remove(member);
}
}
}
public void ChangeToRandomNewHost()
{
var random = new Random();
lock (roomLock)
{
if (_members.Count > 0)
{
var index = random.Next(0, _members.Count - 1);
_host = _members[index];
}
MessageSender.BroadcastMessage(
_members,
PacketType.s_HostTransfer,
_host.UserInfo);
}
}
public void RemoveClient(Client client)
{
lock (clientListLock)
{
_globalClientList.Remove(client);
}
var db = Database.GetInstance();
if (client.UserInfo == null)
{
return;
}
var user = db.GetUserByEmail(client.UserInfo.EmailAddress);
var friend = MessageReceiver.GetFriendFromUser(user);
//
// Remove the user from his room in case he is still part of one.
//
var roomManager = RoomManager.GetInstance();
roomManager.RemoveMemberfromRoom(client.Room.Host, client);
//
// Send a message saying that the user logged off to all of his friends who are online.
//
var friends = db.GetFriends(client.UserInfo.EmailAddress);
if (null == friends)
{
return;
}
var onlineFriends = new List<Client>();
foreach (user frd in friends)
{
var c = GetClientFromEmailAddress(frd.email);
if (null != c)
{
onlineFriends.Add(c);
}
}
MessageSender.BroadcastMessage(
onlineFriends,
PacketType.s_UserLoggedOut,
friend,
client);
}
public Room CreateNewRoom(Client host)
{
var newRoom = new Room(host);
lock (_roomListLock)
{
_roomList.Add(newRoom);
}
return newRoom;
}
public void ChangeHost(Client host)
{
lock (roomLock)
{
_host = host;
}
}
public List<Client> GetRoomMembers(Client host)
{
var roomMembers = new List<Client>();
lock (_roomListLock)
{
foreach (var room in _roomList.Where(room => room.Host == host))
{
roomMembers = room.Members;
break;
}
}
return roomMembers;
}
public void SignalClientIsReadyForGame(Client client)
{
// ToDo: Add some sort of time out guard here and drop clients if they take too long to respond.
_clientsReadyForGame.Add(client);
//
// If this condition has been met, it means that all of the clients are ready.
//
if (_clientsReadyForGame.Count == _members.Count)
{
MessageSender.BroadcastMessage(_members, PacketType.s_GameStart, null);
_clientsReadyForGame.Clear();
RoomStatus = RoomStatus.InGame;
}
}
/// <summary>
/// Helper method that sends two messages to the user: A complete friend list,
/// and then a list of friends that are online.
/// </summary>
/// <param name="client"></param>
public static void SendOnlineAndCompleteFriendList(Client client)
{
//
// Send the user a list of all of their friends.
//
var db = Database.GetInstance();
var friendList = db.GetFriends(client.UserInfo.EmailAddress);
if (null != friendList)
{
var friendListString = CreateFriendListFromUserList(friendList);
MessageSender.SendMessage(
client,
PacketType.s_FriendList,
friendListString);
//
// Send the user a list of all of their friends who are online.
//
var onlineUsers = new List<user>();
foreach (var frd in friendList)
{
var clientManager = ClientManager.GetInstance();
var onlineClient = clientManager.GetClientFromEmailAddress(frd.email);
if (null != onlineClient)
{
onlineUsers.Add(frd);
}
}
var onlineFriends = CreateFriendListFromUserList(onlineUsers);
MessageSender.SendMessage(
client,
PacketType.s_OnlineFriendList,
onlineFriends);
}
}
public static void SendMessage(Client recipient, PacketType packetType, object data)
{
if (recipient == null)
{
return;
}
#if DEBUG
//
// If we're debugging, make sure that the data type matches that required by the packetType, or else throw an exception.
//
var type = DataPacket.PacketTypeMap[packetType];
if (type != null)
{
var testObject = Convert.ChangeType(data, type);
}
else
{
if (data != null)
{
throw new ArgumentException("Data from this packet type was expected to be null, but wasn't.");
}
}
#endif
// ToDo: Don't hardcode Packet Version 1 here. Instead, add a packet version property to Client, and switch on that.
var packetBase = new PacketBase {PacketVersion = PacketVersion.Version1};
var packetV1 = new PacketV1
{
PacketType = packetType,
Data = data,
Sender = ServerName
};
packetV1.Recipients.Add(recipient.UserInfo.EmailAddress);
packetBase.Data = packetV1;
dynamic baseBuffer;
using (var stream = new MemoryStream())
{
var binaryWriter = new BinaryWriter(stream);
packetBase.Write(binaryWriter);
baseBuffer = stream.ToArray();
}
var messageSize = baseBuffer.Length;
byte[] bytes = BitConverter.GetBytes(messageSize);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(bytes);
}
var offset = 0;
var messageBuffer = new byte[sizeof(uint) + messageSize];
bytes.CopyTo(messageBuffer, offset);
offset += sizeof(uint);
baseBuffer.CopyTo(messageBuffer, offset);
recipient.Send(messageBuffer);
}
public void RemoveMemberfromRoom(Client roomHost, Client memberToRemove)
{
Room room;
lock (_roomListLock)
{
room = _roomList.FirstOrDefault(myRoom => myRoom.Host == roomHost);
}
if (room == null) return;
room.Members.Remove(memberToRemove);
if (roomHost == memberToRemove)
{
room.ChangeToRandomNewHost();
}
if (0 == room.Members.Count)
{
lock (_roomListLock)
{
_roomList.Remove(room);
}
}
else
{
MessageSender.BroadcastMessage(
room.Members,
PacketType.s_UserLeftRoom,
memberToRemove.UserInfo,
memberToRemove);
}
}
