/// <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>
/// Sends a PING message to the server. This is automatically done to keep the connection alive. Only call this method
/// if you want to send additional PING messages, apart from the ones sent to keep the connection alive.
/// </summary>
public void PING()
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.PINGREQ << 4);
Packet.WriteUInt(0);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, 0);
EventHandler h = this.OnPing;
if (!(h is null))
{
try
{
h(this, new EventArgs());
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
}
private void PINGRESP()
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.PINGRESP << 4);
Packet.WriteUInt(0);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, 0);
}
private void PUBCOMP(ushort PacketIdentifier)
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.PUBCOMP << 4);
Packet.WriteUInt(2);
Packet.WriteUInt16(PacketIdentifier);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, 0);
}
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 DISCONNECT()
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.DISCONNECT << 4);
Packet.WriteUInt(2);
byte[] PacketData = Packet.GetPacket();
ManualResetEvent Done = new ManualResetEvent(false);
this.stream.BeginWrite(PacketData, 0, PacketData.Length, this.EndDisconnect, Done);
Done.WaitOne(1000);
}
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();
}
private void Serialize(Player Player, BinaryOutput Output)
{
Output.WriteString(Player.PublicEndpoint.Address.ToString());
Output.WriteUInt16((ushort)Player.PublicEndpoint.Port);
Output.WriteString(Player.LocalEndpoint.Address.ToString());
Output.WriteUInt16((ushort)Player.LocalEndpoint.Port);
Output.WriteGuid(Player.PlayerId);
Output.WriteUInt((uint)Player.Count);
foreach (KeyValuePair <string, string> P in Player)
{
Output.WriteString(P.Key);
Output.WriteString(P.Value);
}
}
/// <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();
}
/// <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);
}
/// <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 PUBREL(ushort PacketIdentifier)
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)(((int)MqttControlPacketType.PUBREL << 4) | 2));
Packet.WriteUInt(2);
Packet.WriteUInt16(PacketIdentifier);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, PacketIdentifier);
}
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 PINGRESP()
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.PINGRESP << 4);
Packet.WriteUInt(0);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, 0);
}
/// <summary>
/// Sends a PING message to the server. This is automatically done to keep the connection alive. Only call this method
/// if you want to send additional PING messages, apart from the ones sent to keep the connection alive.
/// </summary>
public void PING()
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.PINGREQ << 4);
Packet.WriteUInt(0);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, 0);
EventHandler h = this.OnPing;
if (h != null)
{
try
{
h(this, new EventArgs());
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
}
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();
}
private void DISCONNECT()
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.DISCONNECT << 4);
Packet.WriteUInt(2);
byte[] PacketData = Packet.GetPacket();
ManualResetEvent Done = new ManualResetEvent(false);
this.stream.BeginWrite(PacketData, 0, PacketData.Length, this.EndDisconnect, Done);
Done.WaitOne(1000);
}
/// <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;
}