// Closing connection
public void CloseConnection(string caption, string text)
{
Data.UdpWorkSend = false;
try
{
Data.LobbyLink.Dispatcher.Invoke(new Action(delegate()
{
// Clear list
Data.gamerList.Clear();
Data.LobbyLink.Title = caption + ": " + text;
}));
try
{
Connected = false;
if (_tcpStream != null)
{
_tcpStream.Flush();
_tcpStream.Close();
}
if (_tcpServer != null)
{
_tcpServer.Close();
}
if (srReceiver != null)
{
srReceiver.Close();
}
}
catch { }
Data.LobbyLink.Dispatcher.Invoke(new Action(delegate()
{
Data.LobbyLink.Close();
Data.MainWin.Focus();
}));
// Show message about reason of closing
if (text != "The lobby is closed by host")
{
MainWin.Message(caption, text);
}
}
catch { }
Data.UdpWorkRec = false;
if (Udp.receiver_server != null)
{
Udp.receiver_server.Close();
}
}
// Create a lobby and lock the settings in the main window
public void CreateLobby()
{
try
{
LobbyWin Lobby = new LobbyWin();
Lobby.Owner = Data.MainWin;
Data.LobbyLink = Lobby;
if (Data.LobbyTitle != null)
{
Lobby.Title = Data.LobbyTitle;
}
Data.LobbyLink.Show();
Lock();
}
catch (Exception ex)
{
MainWin.Message("Internal error", "Try to reload the program");
}
}
// Initialization
public void InitializeConnection(string ip, int port)
{
_tcpServer = null;
Set printData = new Set();
try
{
TryConectToRandomPortIteration(10);
}
// If it didn’t succeed in contacting the specified port,
// the program tries random ports (10 iterations)
catch (Exception ex)
{
if (!TryConectToRandomPortIteration(5))
{
// If it didn’t turn out to find the port, we tell the player about it and exit
MainWin.Message("TCP error", "Did not manage to pick up tcp port for a connection");
if (_tcpServer != null)
{
_tcpServer.Close();
}
return;
}
}
try
{
Connected = true;
_ipHost = IPAddress.Parse(ip);
IAsyncResult result = _tcpServer.BeginConnect(_ipHost, port, null, null);
// Set timeout for connection
bool success = result.AsyncWaitHandle.WaitOne(2000, true);
if (!_tcpServer.Connected)
{
CloseConnection("Connection error", "You cannot join this lobby. Some problem with the TCP port");
return;
}
}
// If it didn’t succeed in connecting, show a message
catch (Exception ex)
{
CloseConnection("Connection error", "You cannot join this lobby. Some problem with the TCP");
return;
}
_tcpStream = _tcpServer.GetStream();
// Create an object for serialization:
Gamers Gamer = new Gamers();
if (!Data.JoinToServer)
{
Gamer.Key = "yes";
}
Gamer.Type = 0;
Gamer.Name = Data.SettingCh.St.Name;
Gamer.Status = 0;
Gamer.Car = Data.SettingCh.St.Car;
Gamer.Team = Data.SettingCh.St.Team;
Gamer.Message = ip;
if (Data.JoinToServer)
{
if (Data.webList[Data.LobbyNumber].PasswordInp == null)
{
Gamer.Password = "";
}
else
{
Gamer.Password = Data.webList[Data.LobbyNumber].PasswordInp;
}
}
// Sending to client
_tcpStream.Write(Json.WriteClient(Gamer), 0, Json.WriteClient(Gamer).Length);
_tcpStream.Flush();
// Open thread reciaving messages
_thrMessaging = new Thread(new ThreadStart(ReceiveMessages));
_thrMessaging.Start();
}
// For receiving mssages
private void ReceiveMessages()
{
int bufferSize = 8000;
Set printData = new Set();
Set setGamer = new Set();
// Create a buffer for receiving
byte[] bytes = new byte[bufferSize];
_tcpStream = _tcpServer.GetStream();
try
{
int bytesRead = _tcpStream.Read(bytes, 0, bytes.Length);
}
catch { }
GamerList gamerTempList = new GamerList();
gamerTempList = Json.ReadHost(bytes);
if (gamerTempList == null)
{
MainWin.Message("Connection error", "Connection error");
// Exit
return;
}
switch (gamerTempList.Type)
{
// Error in nikename
case -4:
{
CloseConnection("Connection error", "Invalid characters in name");
return;
}
// Closing room
case -3:
{
CloseConnection("Connection error", "Lobby closed");
return;
}
// Wrong password
case -2:
{
CloseConnection("Connection error", "Wrong password");
return;
}
// Name is already used
case -1:
{
CloseConnection("Connection error", "Your name is already used");
return;
}
// If there are no errors and the request is accepted
default:
{
Data.MainWin.Dispatcher.Invoke(new Action(delegate()
{
// Create lobby window
Data.MainWin.CreateLobby();
}));
// Accept the list of all players
Data.GamersList = gamerTempList;
printData.SetMassageInfo("You are logged in as " + Data.SettingCh.St.Name + "\r\n");
// Display the list in the table
for (int i = 0; i < Data.GamersList.gamer.Count; i++)
{
setGamer.AddToGrid(i);
}
// Get your number
Get getMyNumber = new Get();
getMyNumber.GetMyNamber();
Data.LobbyLink.Dispatcher.Invoke(new Action(delegate()
{
Get getMap = new Get();
// Set map
Data.LobbyLink.ShowMap(Data.GamersList.Map);
// Set score
Data.LobbyLink.ScoreChange(Data.GamersList.Score);
// Set header
if (Data.JoinToServer)
{
string name;
if (Data.webList[Data.LobbyNumber].Name.Length > 16)
{
name = Data.webList[Data.LobbyNumber].Name.Substring(0, 16) + "...";
}
else
{
name = Data.webList[Data.LobbyNumber].Name;
}
Data.LobbyLink.Title = name + " [ " + Data.GamersList.ModOrig + " | " + Data.GamersList.LobbyType + " ]";
}
else
{
Data.LobbyLink.Title = Data.GamersList.gamer[0].Name + "'s Lobby [ " + Data.GamersList.ModOrig + " | " + Data.GamersList.LobbyType + " ]";
}
}));
// Turn on UDP module
Udp UdpOn = new Udp();
UdpOn.StartUDPModul();
srReceiver = new System.IO.StreamReader(_tcpStream);
// While Connected == true accept messages
while (Connected)
{
try
{
int byteRead;
byte[] bytesHost = new byte[bufferSize];
byteRead = _tcpStream.Read(bytesHost, 0, bufferSize);
if (byteRead != 0)
{
GamerList gamerList = new GamerList();
gamerList = Json.ReadHost(bytesHost);
Data.LobbyLink.Dispatcher.Invoke(new UpdateLogCallback(this.UpdateLog), new object[] { gamerList });
}
else
{
CloseConnection("Connection error", "The lobby is closed by host");
return;
}
}
catch { return; }
}
return;
}
}
}
// Listen and wait for messages
public void ReceiveMessage()
{
receiver_server = null;
Set printData = new Set();
int buffer_size = 256;
bool firstMessLd = true;
string time_now = "";
int real_ping;
IPEndPoint LdIpPort = null;
string message = "";
Get get_param = new Get();
// UDP port FROM FILE for listening from all IPs
int portReciever = 0;
if (Data.HostOrClient)
{
Int32.TryParse(Data.SettingCh.St.UdpPort, out portReciever);
}
else
{
Random randomUdpPort = new Random();
portReciever = randomUdpPort.Next(49152, 65535);
}
Data.UdpWorkRec = true;
int num;
try
{
receiver_server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPEndPoint localIP = new IPEndPoint(IPAddress.Any, portReciever);
receiver_server.Bind(localIP);
}
catch (Exception ex)
{
MainWin.Message("Udp port error", "Failed to determine UDP port, specify it in the settings yourself");
}
string[] parts;
string[] partr;
// Buffer for received data
byte[] data = new byte[buffer_size];
byte[] data_ = new byte[6];
// Client for mailing to ld (for mailing to other players)
UdpClient sendToLd = new UdpClient();
// The address from which the data came
EndPoint remoteIp = new IPEndPoint(IPAddress.Any, 0);
if (Data.HostOrClient)
{
num = 1;
}
else
{
num = 0;
}
try
{
int bytes;
// UDP listening cycle starts immediately and works while there is a room
// first listens to ping, then receives data from clients
while (Data.UdpWorkRec == true)
{
try
{
// Get data
_buffer = receiver_server.ReceiveFrom(data, buffer_size, SocketFlags.None, ref remoteIp); //
}
catch (Exception ex) { }
if (data[0] == 's')
{
// Converted from bytes to string to parse
message = Encoding.Unicode.GetString(data, 0, 6);
parts = message.Split('s');
int number = 0;
Int32.TryParse(parts[1], out number);
Array.Clear(data, 0, buffer_size);
string message2 = "r" + Data.MyNamber + "r";
data_ = Encoding.Unicode.GetBytes(message2);
try
{
{
receiver_server.SendTo(data_, remoteIp);
}
}
catch (Exception ex) { }
// When ping arrives, the host always updates its data
if (Data.HostOrClient)
{
if (Data.LastNumber != 0)
{
Data.GamersList.gamer[number].Udp = remoteIp as IPEndPoint;
// If there is ping with everyone
if (get_param.GetReadyPing())
{
Data.ChatStatic.Dispatcher.Invoke(new Action(delegate()
{
Data.GamersList.Type = 7;
Host.SendAllThread(Data.GamersList);
}));
// After the exchange, discard the last player before another
Data.LastNumber = 0;
}
}
}
}
else if (data[0] == 'r')
{
// Get the first ping point
time_now = DateTime.Now.ToString("ss.fff");
// Converted from bytes to string to parse
message = Encoding.Unicode.GetString(data, 0, _buffer);
partr = message.Split('r');
int number = 0;
Int32.TryParse(partr[1], out number);
time_now = time_now.Replace(".", "");
stop_point[number] = 0;
Int32.TryParse(time_now, out stop_point[number]);
real_ping = stop_point[number] - start_point[number];
try
{
if (Data.GamersList.gamer[number] != null)
{
if (real_ping >= 1000)
{
double _realPing = real_ping / 1000;
Data.GamersList.gamer[number].GPing = _realPing.ToString("N2");
}
else if (real_ping >= 10000)
{
double _realPing = real_ping / 1000;
Data.GamersList.gamer[number].GPing = _realPing.ToString("N1");
}
else if (real_ping >= 0)
{
Data.GamersList.gamer[number].GPing = real_ping.ToString();
}
}
// If the host then I check for ping always
if (Data.HostOrClient)
{
Data.LobbyLink.Dispatcher.Invoke(new Action(delegate()
{
Data.LobbyLink.CheckPing();
}));
}
}
catch { }
Array.Clear(data, 0, buffer_size);
}
else if (data[0] == 'u')
{
Set messag = new Set();
messag.SetText("UDP port is open");
}
else if (data[0] < 3)
{
data[0] += 5;
// If the first message, then determine the address
if (firstMessLd == true)
{
// We receive data about LD and we will send them from players
LdIpPort = remoteIp as IPEndPoint;
firstMessLd = false;
}
// Mailing to all players except yourself
for (int i = num; i < Data.GamersList.gamer.Count; i++)
{
// Send a package to everyone except myself
if (Data.MyNamber != i)
{
try
{
receiver_server.SendTo(data, Data.GamersList.gamer[i].Udp);
}
catch (Exception ex)
{
}
}
}
// Clean the buffer
Array.Clear(data, 0, buffer_size);
}
else
{
data[0] -= 5;
if (LdIpPort != null)
{
sendToLd.Send(data, data.Length, LdIpPort);
}
// Clean the buffer
Array.Clear(data, 0, buffer_size);
}
}
// Exit the loop and close the listening socket
if (receiver_server != null)
{
receiver_server.Close();
}
// Close the send socket on ld
if (sendToLd != null)
{
sendToLd.Close();
}
}
catch (Exception ex) { }
}
// Starts the server and starts receiving clients
public void StartListening(string port)
{
// Before determining its IP, this variable is false
getMyIp = false;
Set message = new Set();
int portInt32 = 0;
Int32.TryParse(port, out portInt32);
// Configure sockets over TCP, use IP and open TCP port
try
{
tlsClient = new TcpListener(portInt32);
}
catch
{
MainWin.Message("Connection error", "Wrong Tcp port");
}
// Add the first term equal to zero instead of ourselves
tcpClients.Add(null);
// Start to listen
try
{
tlsClient.Start();
// Create lobby window
Data.MainWin.CreateLobby();
Data.MyNamber = 0;
message.SetMassageInfo("Waiting other players...\r\n");
// Set a unique session number and will transmit it
Data.GamersList.IdSession = DateTime.Now.ToString("dd hh:mm:ss").Replace(" ", "").Replace(".", "").Replace(":", "");
//_____________ Connect the UDP module ___________
Udp UdpOn = new Udp();
UdpOn.StartUDPModul();
}
catch
{
MainWin.Message("Connection error", "Wrong Tcp port [2]");
return;
}
// UDP port FROM FILE for listening from all IPs
int portUdp = 0;
Int32.TryParse(Data.SettingCh.St.UdpPort, out portUdp);
IPEndPoint RemoteEndPoint = null;
RemoteEndPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), portUdp);
Data.GamersList.gamer.Add(new Gamers()
{
Type = 0, Ping = "", Name = Data.SettingCh.St.Name, Number = 0, Status = 0, Car = Data.SettingCh.St.Car, Team = Data.SettingCh.St.Team, Udp = null, Message = null, Password = null,
});
Data.GamersList.Map = Data.SettingCh.St.Map;
Data.GamersList.Score = Data.SettingCh.St.Score;
// if created on the server, then enable updates to the server
if (Data.CreateToServer)
{
// Create lobby
Web createLobby = new Web();
// This variable is responsible for updating
Data.FollowToLobby = true;
// Start creating and updating the lobby in a new thread
createLobby.CreateLobbyInThread();
}
Data.gamerList.Add(Data.GamersList.gamer[0]);
// Create a new thread for the connection wait loop
thrListener = new Thread(KeepListening);
thrListener.Start();
}
