/// <summary>
/// Performs whatever functions we might so desire when we receive an incoming ChatMessage
/// </summary>
/// <param name="header">The PacketHeader corresponding with the received object</param>
/// <param name="connection">The Connection from which this object was received</param>
/// <param name="incomingMessage">The incoming ChatMessage we are after</param>
protected virtual void HandleIncomingChatMessage(PacketHeader header, Connection connection, ChatMessage incomingMessage)
{
//We only want to write a message once to the chat window
//Because we support relaying and may receive the same message twice from multiple sources
//we use our history and message indexes to ensure we have a new message
//We perform this action within a lock as HandleIncomingChatMessage could be called in parallel
lock (lastPeerMessageDict)
{
if (lastPeerMessageDict.ContainsKey(incomingMessage.SourceIdentifier))
{
if (lastPeerMessageDict[incomingMessage.SourceIdentifier].MessageIndex < incomingMessage.MessageIndex)
{
//If this message index is greater than the last seen from this source we can safely
//write the message to the ChatBox
AppendLineToChatHistory(incomingMessage.SourceName + " - " + incomingMessage.Message);
//We now replace the last received message with the current one
lastPeerMessageDict[incomingMessage.SourceIdentifier] = incomingMessage;
}
}
else
{
//If we have never had a message from this source before then it has to be new
//by definition
lastPeerMessageDict.Add(incomingMessage.SourceIdentifier, incomingMessage);
AppendLineToChatHistory(incomingMessage.SourceName + " - " + incomingMessage.Message);
}
}
//This last section of the method is the relay feature
//We start by checking to see if this message has already been relayed the maximum number of times
if (incomingMessage.RelayCount < relayMaximum)
{
//If we are going to relay this message we need an array of
//all known connections, excluding the current one
var allRelayConnections = (from current in NetworkComms.GetExistingConnection() where current != connection select current).ToArray();
//We increment the relay count before we send
incomingMessage.IncrementRelayCount();
//We now send the message to every other connection
foreach (var relayConnection in allRelayConnections)
{
//We ensure we perform the send within a try catch
//To ensure a single failed send will not prevent the
//relay to all working connections.
try { relayConnection.SendObject("ChatMessage", incomingMessage); }
catch (CommsException) { /* Catch the general comms exception, ignore and continue */ }
}
}
}
/// <summary>
/// Performs whatever functions we might so desire when we receive an incoming ChatMessage
/// </summary>
/// <param name="header">The PacketHeader corresponding with the received object</param>
/// <param name="connection">The Connection from which this object was received</param>
/// <param name="incomingMessage">The incoming ChatMessage we are after</param>
protected virtual void HandleIncomingChatMessage(PacketHeader header, Connection connection, ChatMessage incomingMessage)
{
//We only want to write a message once to the chat window
//Because we support relaying and may receive the same message twice from multiple sources
//we use our history and message indexes to ensure we have a new message
//We perform this action within a lock as HandleIncomingChatMessage could be called in parallel
lock (lastPeerMessageDict)
{
if (lastPeerMessageDict.ContainsKey(incomingMessage.SourceIdentifier))
{
if (lastPeerMessageDict[incomingMessage.SourceIdentifier].MessageIndex < incomingMessage.MessageIndex)
{
//If this message index is greater than the last seen from this source we can safely
//write the message to the ChatBox
AppendLineToChatHistory(incomingMessage.SourceName + " - " + incomingMessage.Message);
//We now replace the last received message with the current one
lastPeerMessageDict[incomingMessage.SourceIdentifier] = incomingMessage;
}
}
else
{
//If we have never had a message from this source before then it has to be new
//by definition
lastPeerMessageDict.Add(incomingMessage.SourceIdentifier, incomingMessage);
AppendLineToChatHistory(incomingMessage.SourceName + " - " + incomingMessage.Message);
}
}
//This last section of the method is the relay feature
//We start by checking to see if this message has already been relayed the maximum number of times
if (incomingMessage.RelayCount < relayMaximum)
{
//If we are going to relay this message we need an array of
//all known connections, excluding the current one
var allRelayConnections = (from current in NetworkComms.GetExistingConnection() where current != connection select current).ToArray();
//We increment the relay count before we send
incomingMessage.IncrementRelayCount();
//We now send the message to every other connection
foreach (var relayConnection in allRelayConnections)
{
//We ensure we perform the send within a try catch
//To ensure a single failed send will not prevent the
//relay to all working connections.
try { relayConnection.SendObject("ChatMessage", incomingMessage); }
catch (CommsException) { /* Catch the general comms exception, ignore and continue */ }
}
}
}
