/// <summary>
/// Creates inter-player peer-to-peer connections between known players.
/// </summary>
public async Task ConnectPlayers()
{
if (this.state != MultiPlayerState.FindingPlayers)
{
throw new Exception("The multiplayer environment is not in the state of finding players.");
}
await this.SetState(MultiPlayerState.ConnectingPlayers);
int Index = 0;
BinaryOutput Output = new BinaryOutput();
Output.WriteByte(1);
Output.WriteString(this.applicationName);
this.localPlayer.Index = Index++;
this.Serialize(this.localPlayer, Output);
#if LineListener
Console.Out.Write("Tx: INTERCONNECT(" + this.localPlayer.ToString());
#endif
lock (this.remotePlayersByEndpoint)
{
Output.WriteUInt((uint)this.remotePlayersByEndpoint.Count);
foreach (Player Player in this.remotePlayersByEndpoint.Values)
{
Player.Index = Index++;
this.Serialize(Player, Output);
#if LineListener
Console.Out.Write("," + Player.ToString());
#endif
}
}
this.mqttTerminatedPacketIdentifier = await this.mqttConnection.PUBLISH(this.mqttNegotiationTopic, MqttQualityOfService.AtLeastOnce, false, Output);
this.mqttConnection.OnPublished += this.MqttConnection_OnPublished;
#if LineListener
Console.Out.WriteLine(")");
#endif
await this.StartConnecting();
}
private void MqttConnection_OnStateChanged(object Sender, MqttState NewState)
{
if (NewState == MqttState.Connected)
{
this.mqttConnection.SUBSCRIBE(this.mqttNegotiationTopic);
BinaryOutput Output = new BinaryOutput();
Output.WriteByte(0);
Output.WriteString(this.applicationName);
this.localPlayer.SetEndpoints(this.p2pNetwork.ExternalEndpoint, this.p2pNetwork.LocalEndpoint);
this.Serialize(this.localPlayer, Output);
this.mqttConnection.PUBLISH(this.mqttNegotiationTopic, MqttQualityOfService.AtLeastOnce, false, Output);
#if LineListener
Console.Out.WriteLine("Tx: HELLO(" + this.localPlayer.ToString() + ")");
#endif
}
}
/// <summary>
/// Subscribes to information from a set of topics. Topics can include wildcards.
/// </summary>
/// <param name="Topics">Topics together with Quality of Service levels for each topic.</param>
/// <returns>Packet identifier assigned to subscription.</returns>
public ushort SUBSCRIBE(params KeyValuePair <string, MqttQualityOfService>[] Topics)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
{
PacketIdentifier = this.packetIdentifier++;
}
Payload.WriteUInt16(PacketIdentifier);
foreach (KeyValuePair <string, MqttQualityOfService> Pair in Topics)
{
Payload.WriteString(Pair.Key);
Payload.WriteByte((byte)Pair.Value);
}
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.SUBSCRIBE << 4);
b |= 2;
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, PacketIdentifier);
return(PacketIdentifier);
}
private void Connection_OnReceived(object Sender, byte[] Packet)
{
PeerConnection Connection = (PeerConnection)Sender;
Guid PlayerId;
IPAddress PlayerRemoteAddress;
IPEndPoint PlayerRemoteEndpoint;
try
{
BinaryInput Input = new BinaryInput(Packet);
PlayerId = Input.ReadGuid();
PlayerRemoteAddress = IPAddress.Parse(Input.ReadString());
PlayerRemoteEndpoint = new IPEndPoint(PlayerRemoteAddress, Input.ReadUInt16());
}
catch (Exception)
{
Connection.Dispose();
return;
}
Player Player = (Player)Connection.StateObject;
lock (this.remotePlayersByEndpoint)
{
if (!this.playersById.TryGetValue(PlayerId, out Player Player2) || Player2.PlayerId != Player.PlayerId)
{
Connection.Dispose();
return;
}
Player.Connection = Connection;
}
Connection.RemoteEndpoint = Player.GetExpectedEndpoint(this.p2pNetwork);
Connection.OnReceived -= new BinaryEventHandler(Connection_OnReceived);
Connection.OnReceived += new BinaryEventHandler(Peer_OnReceived);
Connection.OnSent += new BinaryEventHandler(Connection_OnSent);
BinaryOutput Output = new BinaryOutput();
Output.WriteGuid(this.localPlayer.PlayerId);
Output.WriteString(this.ExternalAddress.ToString());
Output.WriteUInt16((ushort)this.ExternalEndpoint.Port);
Connection.SendTcp(Output.GetPacket());
MultiPlayerEnvironmentPlayerInformationEventHandler h = this.OnPlayerConnected;
if (h != null)
{
try
{
h(this, Player);
}
catch (Exception ex)
{
Events.Log.Critical(ex);
}
}
}
private ushort PUBLISH(string Topic, MqttQualityOfService QoS, bool Retain, bool Duplicate, byte[] Data)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
Payload.WriteString(Topic);
if (QoS > MqttQualityOfService.AtMostOne)
{
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
PacketIdentifier = this.packetIdentifier++;
Payload.WriteUInt16(PacketIdentifier);
}
else
PacketIdentifier = 0;
Payload.WriteBytes(Data);
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.PUBLISH << 4);
if (Duplicate)
b |= 8;
b |= (byte)((int)QoS << 1);
if (Retain)
b |= 1;
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, PacketIdentifier);
return PacketIdentifier;
}
private void CONNECT(int KeepAliveSeconds)
{
this.State = MqttState.Authenticating;
this.keepAliveSeconds = KeepAliveSeconds;
this.nextPing = DateTime.Now.AddMilliseconds(KeepAliveSeconds * 500);
this.secondTimer = new Timer(this.secondTimer_Elapsed, null, 1000, 1000);
BinaryOutput Payload = new BinaryOutput();
Payload.WriteString("MQTT");
Payload.WriteByte(4); // v3.1.1
byte b = 2; // Clean session.
Payload.WriteByte(b);
Payload.WriteByte((byte)(KeepAliveSeconds >> 8));
Payload.WriteByte((byte)KeepAliveSeconds);
Payload.WriteString(this.clientId);
if (!string.IsNullOrEmpty(this.userName))
{
b |= 128;
Payload.WriteString(this.userName);
if (!string.IsNullOrEmpty(this.password))
{
b |= 64;
Payload.WriteString(this.password);
}
}
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.CONNECT << 4);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, 0);
this.inputState = 0;
this.BeginRead();
}
/// <summary>
/// Unsubscribes from information earlier subscribed to. Topics can include wildcards.
/// </summary>
/// <param name="Topics">Topics</param>
/// <returns>Packet identifier assigned to unsubscription.</returns>
public ushort UNSUBSCRIBE(params string[] Topics)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
PacketIdentifier = this.packetIdentifier++;
Payload.WriteUInt16(PacketIdentifier);
foreach (string Topic in Topics)
Payload.WriteString(Topic);
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.UNSUBSCRIBE << 4);
b |= 2;
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, PacketIdentifier);
return PacketIdentifier;
}
/// <summary>
/// Subscribes to information from a set of topics. Topics can include wildcards.
/// </summary>
/// <param name="Topics">Topics together with Quality of Service levels for each topic.</param>
/// <returns>Packet identifier assigned to subscription.</returns>
public ushort SUBSCRIBE(params KeyValuePair<string, MqttQualityOfService>[] Topics)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
PacketIdentifier = this.packetIdentifier++;
Payload.WriteUInt16(PacketIdentifier);
foreach (KeyValuePair<string, MqttQualityOfService> Pair in Topics)
{
Payload.WriteString(Pair.Key);
Payload.WriteByte((byte)Pair.Value);
}
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.SUBSCRIBE << 4);
b |= 2;
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, PacketIdentifier);
return PacketIdentifier;
}
public static void Main(string[] args)
{
Initialize();
try
{
DateTime Start = DateTime.Now;
Guid PlayerId = Guid.NewGuid();
string Name;
Console.Out.WriteLine("Hello. What is your name?");
Name = Console.ReadLine();
using (MultiPlayerEnvironment MPE = new MultiPlayerEnvironment("MultiPlayerSetup", true,
"iot.eclipse.org", 1883, false, string.Empty, string.Empty, "RetroSharp/Examples/Networking/MultiPlayerSetup",
5, PlayerId, new KeyValuePair <string, string>("NAME", Name)))
{
MPE.OnStateChange += (sender, newstate) => Console.Out.WriteLine(newstate.ToString());
MPE.OnPlayerAvailable += (sender, player) =>
{
Console.Out.WriteLine("New player available: " + player["NAME"]);
if (sender.PlayerCount >= 5 || (DateTime.Now - Start).TotalSeconds >= 20)
{
MPE.ConnectPlayers();
}
};
MPE.OnPlayerConnected += (sender, player) => Console.Out.WriteLine("Player connected: " + player["NAME"]);
MPE.OnGameDataReceived += (sender, e) => Console.Out.WriteLine(e.FromPlayer["NAME"] + ": " + e.Data.ReadString());
MPE.OnPlayerDisconnected += (sender, player) => Console.Out.WriteLine("Player disconnected: " + player["NAME"]);
if (!MPE.Wait(20000))
{
if (MPE.State == MultiPlayerState.FindingPlayers)
{
MPE.ConnectPlayers();
}
else
{
throw new Exception("Unable to setup multi-player environment.");
}
}
Console.Out.WriteLine(MPE.PlayerCount.ToString() + " player(s) now connected.");
Console.Out.WriteLine("Write anything and send it to the others.");
Console.Out.WriteLine("An empty row will quit the application.");
Console.Out.WriteLine();
string s = Console.In.ReadLine();
while (!string.IsNullOrEmpty(s))
{
BinaryOutput Msg = new BinaryOutput();
Msg.WriteString(s);
MPE.SendTcpToAll(Msg.GetPacket());
s = Console.In.ReadLine();
}
}
}
catch (Exception ex)
{
Console.Out.WriteLine(ex.Message);
Console.In.ReadLine();
}
Terminate();
}
public static void Main(string[] args)
{
Initialize();
Console.Out.Write("Host Name (default iot.eclipse.org): ");
string Host = Console.In.ReadLine();
if (string.IsNullOrEmpty(Host))
{
Console.Out.WriteLine("Using iot.eclipse.org.");
Host = "iot.eclipse.org";
}
Console.Out.WriteLine();
Console.Out.Write("Port Number (default 1883): ");
string s = Console.In.ReadLine();
int Port;
if (string.IsNullOrEmpty(s))
{
Console.Out.WriteLine("Using port 1883.");
Port = 1883;
}
else
{
Port = int.Parse(s);
}
Console.Out.WriteLine();
BinaryOutput Payload;
int PacketsLeft = NrTestsPerQoS;
using (MqttConnection MqttConnection = ConnectToMqttServer("iot.eclipse.org", Port, string.Empty, string.Empty))
{
WriteLine("<" + MqttConnection.State.ToString() + ">", C64Colors.LightGreen);
MqttConnection.TrustServer = true;
MqttConnection.OnConnectionError += (sender, ex) =>
{
WriteLine("Unable to connect:", C64Colors.Red);
};
MqttConnection.OnError += (sender, ex) =>
{
WriteLine(ex.Message, C64Colors.Red);
};
MqttConnection.OnContentReceived += (sender, Content) =>
{
string ClientId = Content.DataInput.ReadString();
if (ClientId == sender.ClientId)
{
DateTime TP = Content.DataInput.ReadDateTime();
MqttQualityOfService QoS = (MqttQualityOfService)Content.DataInput.ReadByte();
Console.Out.WriteLine("Latency: " + (DateTime.Now - TP).TotalMilliseconds + " ms (" + QoS.ToString() + ")");
bool Resend;
if (--PacketsLeft > 0)
{
Resend = true;
}
else if (QoS < MqttQualityOfService.ExactlyOne)
{
QoS = (MqttQualityOfService)((int)QoS + 1);
PacketsLeft = NrTestsPerQoS;
Resend = true;
}
else
{
Resend = false;
}
if (Resend)
{
Payload = new BinaryOutput();
Payload.WriteString(MqttConnection.ClientId);
Payload.WriteDateTime(DateTime.Now);
Payload.WriteByte((byte)QoS);
MqttConnection.PUBLISH("RetroSharp/Examples/Networking/Latency", QoS, false, Payload);
}
else
{
Console.Out.WriteLine("Press ENTER to continue.");
}
}
};
MqttConnection.OnStateChanged += (sender, state) =>
{
WriteLine("<" + MqttConnection.State.ToString() + ">", C64Colors.LightGreen);
if (state == MqttState.Connected)
{
MqttConnection.SUBSCRIBE("RetroSharp/Examples/Networking/Latency");
Payload = new BinaryOutput();
Payload.WriteString(MqttConnection.ClientId);
Payload.WriteDateTime(DateTime.Now);
Payload.WriteByte((byte)MqttQualityOfService.AtMostOne);
MqttConnection.PUBLISH("RetroSharp/Examples/Networking/Latency", MqttQualityOfService.AtMostOne, false, Payload);
}
};
Console.In.ReadLine();
}
Terminate();
}
public static void Main(string[] args)
{
ManualResetEvent Terminated = new ManualResetEvent(false);
Initialize();
Console.Out.WriteLine("Move the mouse to move the pointer on the screen.");
Console.Out.WriteLine("Press left mouse button while moving to draw.");
Console.Out.WriteLine("Press the ESC key to close the application.");
Console.Out.WriteLine("You will be able to see what others draw as well.");
OnKeyDown += (sender, e) =>
{
if (e.Key == Key.Escape || (e.Key == Key.C && e.Control))
{
Terminated.Set();
}
};
FillRectangle(0, 0, ScreenWidth, ScreenHeight, C64Colors.Blue);
int PointerTexture = AddSpriteTexture(GetResourceBitmap("Pointer.png"), System.Drawing.Color.FromArgb(0, 0, 255), true);
Point P = GetMousePointer();
Point LastP = P;
Sprite Pointer = CreateSprite(P.X, P.Y, PointerTexture);
Random Rnd = new System.Random();
int R = Rnd.Next(128, 255);
int G = Rnd.Next(128, 255);
int B = Rnd.Next(128, 255);
Color Color = Color.FromArgb(R, G, B);
bool Draw = false;
BinaryOutput Payload;
using (MqttConnection MqttConnection = ConnectToMqttServer("iot.eclipse.org", false, string.Empty, string.Empty))
{
WriteLine("<" + MqttConnection.State.ToString() + ">", C64Colors.LightGreen);
MqttConnection.TrustServer = true;
MqttConnection.OnConnectionError += (sender, ex) =>
{
WriteLine("Unable to connect:", C64Colors.Red);
};
MqttConnection.OnError += (sender, ex) =>
{
WriteLine(ex.Message, C64Colors.Red);
};
MqttConnection.OnStateChanged += (sender, state) =>
{
WriteLine("<" + MqttConnection.State.ToString() + ">", C64Colors.LightGreen);
if (state == MqttState.Connected)
{
MqttConnection.SUBSCRIBE("RetroSharp/Examples/Networking/MultiUserDraw");
}
};
OnMouseMove += (sender, e) =>
{
P = e.Position;
Pointer.SetPosition(P);
int DX = P.X - RasterWidth / 2;
int DY = P.Y - RasterHeight / 2;
Pointer.Angle = 90 + 22.5 + System.Math.Atan2(DY, DX) * 180 / System.Math.PI;
if (Draw)
{
Payload = new BinaryOutput();
Payload.WriteString(MqttConnection.ClientId);
Payload.WriteInt(LastP.X);
Payload.WriteInt(LastP.Y);
Payload.WriteInt(P.X);
Payload.WriteInt(P.Y);
Payload.WriteColor(Color);
MqttConnection.PUBLISH("RetroSharp/Examples/Networking/MultiUserDraw", MqttQualityOfService.AtMostOne, false, Payload);
DrawLine(LastP.X, LastP.Y, P.X, P.Y, Color);
}
LastP = P;
};
OnMouseDown += (sender, e) =>
{
Draw = e.LeftButton;
};
OnMouseUp += (sender, e) =>
{
Draw = e.LeftButton;
};
MqttConnection.OnContentReceived += (sender, Content) =>
{
BinaryInput Input = Content.DataInput;
string ClientId = Input.ReadString();
if (ClientId != MqttConnection.ClientId)
{
int X1 = (int)Input.ReadInt();
int Y1 = (int)Input.ReadInt();
int X2 = (int)Input.ReadInt();
int Y2 = (int)Input.ReadInt();
Color cl = Input.ReadColor();
DrawLine(X1, Y1, X2, Y2, cl);
}
};
while (!Terminated.WaitOne(1000))
{
;
}
}
Terminate();
}
public static void Main(string[] args)
{
Initialize();
WriteLine("What is your name?", C64Colors.LightBlue);
string Name = Console.In.ReadLine();
BinaryOutput Payload;
WriteLine("Hello " + Name + ".", C64Colors.LightBlue);
WriteLine("Strings entered below will be seen by everybody running the application.", C64Colors.LightBlue);
WriteLine("Enter an empty string to close the application.", C64Colors.LightBlue);
WriteLine(new string('-', ConsoleWidth), C64Colors.LightBlue);
using (MqttConnection MqttConnection = ConnectToMqttServer("iot.eclipse.org", true, string.Empty, string.Empty))
{
WriteLine("<" + MqttConnection.State.ToString() + ">", C64Colors.LightGreen);
MqttConnection.TrustServer = true;
MqttConnection.OnConnectionError += (sender, ex) =>
{
WriteLine("Unable to connect:", C64Colors.Red);
};
MqttConnection.OnError += (sender, ex) =>
{
WriteLine(ex.Message, C64Colors.Red);
};
MqttConnection.OnStateChanged += (sender, state) =>
{
WriteLine("<" + MqttConnection.State.ToString() + ">", C64Colors.LightGreen);
if (state == MqttState.Connected)
{
MqttConnection.SUBSCRIBE("RetroSharp/Examples/Networking/MultiUserChat");
Payload = new BinaryOutput();
Payload.WriteString(MqttConnection.ClientId);
Payload.WriteString(Name);
Payload.WriteByte(0);
MqttConnection.PUBLISH("RetroSharp/Examples/Networking/MultiUserChat", MqttQualityOfService.AtLeastOne, false, Payload);
}
};
MqttConnection.OnContentReceived += (sender, Content) =>
{
string ClientId = Content.DataInput.ReadString();
if (ClientId != sender.ClientId)
{
string Author = Content.DataInput.ReadString();
byte Command = Content.DataInput.ReadByte();
switch (Command)
{
case 0:
WriteLine("<" + Author + " enters the room.>", C64Colors.LightGreen);
break;
case 1:
string Text = Content.DataInput.ReadString();
WriteLine(Author + ": " + Text, C64Colors.LightBlue);
break;
case 2:
WriteLine("<" + Author + " left the room.>", C64Colors.LightGreen);
break;
}
}
};
while (true)
{
string s = Console.In.ReadLine();
if (string.IsNullOrEmpty(s))
{
break;
}
Payload = new BinaryOutput();
Payload.WriteString(MqttConnection.ClientId);
Payload.WriteString(Name);
Payload.WriteByte(1);
Payload.WriteString(s);
MqttConnection.PUBLISH("RetroSharp/Examples/Networking/MultiUserChat", MqttQualityOfService.AtLeastOne, false, Payload);
}
MqttConnection.UNSUBSCRIBE("RetroSharp/Examples/Networking/MultiUserChat");
int PacketIdentifier = 0;
ManualResetEvent Terminated = new ManualResetEvent(false);
MqttConnection.OnPublished += (sender, e) =>
{
if (PacketIdentifier == e)
{
Terminated.Set();
}
};
Payload = new BinaryOutput();
Payload.WriteString(MqttConnection.ClientId);
Payload.WriteString(Name);
Payload.WriteByte(2);
PacketIdentifier = MqttConnection.PUBLISH("RetroSharp/Examples/Networking/MultiUserChat", MqttQualityOfService.AtLeastOne, false, Payload);
Terminated.WaitOne(5000);
}
Terminate();
}
private async Task <bool> Connection_OnReceived(object Sender, byte[] Buffer, int Offset, int Count)
{
PeerConnection Connection = (PeerConnection)Sender;
Guid PlayerId;
IPAddress PlayerRemoteAddress;
IPEndPoint PlayerRemoteEndpoint;
try
{
BinaryInput Input = new BinaryInput(BinaryTcpClient.ToArray(Buffer, Offset, Count));
PlayerId = Input.ReadGuid();
PlayerRemoteAddress = IPAddress.Parse(Input.ReadString());
PlayerRemoteEndpoint = new IPEndPoint(PlayerRemoteAddress, Input.ReadUInt16());
}
catch (Exception)
{
Connection.Dispose();
return(true);
}
Player Player = (Player)Connection.StateObject;
lock (this.remotePlayersByEndpoint)
{
if (!this.playersById.TryGetValue(PlayerId, out Player Player2) || Player2.PlayerId != Player.PlayerId)
{
Connection.Dispose();
return(true);
}
Player.Connection = Connection;
}
Connection.RemoteEndpoint = Player.GetExpectedEndpoint(this.p2pNetwork);
Connection.OnReceived -= this.Connection_OnReceived;
Connection.OnReceived += this.Peer_OnReceived;
Connection.OnSent += this.Connection_OnSent;
BinaryOutput Output = new BinaryOutput();
Output.WriteGuid(this.localPlayer.PlayerId);
Output.WriteString(this.ExternalAddress.ToString());
Output.WriteUInt16((ushort)this.ExternalEndpoint.Port);
await Connection.SendTcp(Output.GetPacket());
MultiPlayerEnvironmentPlayerInformationEventHandler h = this.OnPlayerConnected;
if (!(h is null))
{
try
{
await h(this, Player);
}
catch (Exception ex)
{
Log.Critical(ex);
}
}
return(true);
}