/// <summary>
/// Sends all cached events to a peer.
/// </summary>
/// <param name = "litePeer">
/// The lite peer that receives the events.
/// </param>
protected void PublishEventCache(LitePeer litePeer)
{
var @event = new CustomEvent(0, 0, null);
foreach (KeyValuePair<int, EventCache> entry in this.eventCacheOld)
{
int actor = entry.Key;
EventCache cache = entry.Value;
@event.ActorNr = actor;
foreach (KeyValuePair<byte, Hashtable> eventEntry in cache)
{
@event.Code = @eventEntry.Key;
@event.Data = @eventEntry.Value;
var eventData = new EventData(@event.Code, @event);
litePeer.SendEvent(eventData, new SendParameters());
}
}
foreach (CustomEvent customEvent in this.eventCache)
{
var eventData = new EventData(customEvent.Code, customEvent);
litePeer.SendEvent(eventData, new SendParameters());
}
}
/// <summary>
/// Helper method of <see cref = "HandleRaiseEventOperation" />.
/// Stores an event for new actors.
/// </summary>
/// <param name = "actor">
/// The actor.
/// </param>
/// <param name = "raiseEventRequest">
/// The raise event request.
/// </param>
/// <returns>
/// True if <see cref = "RaiseEventRequest.Cache" /> is valid.
/// </returns>
protected bool UpdateEventCache(Actor actor, RaiseEventRequest raiseEventRequest)
{
CustomEvent customEvent;
switch (raiseEventRequest.Cache)
{
case (byte)CacheOperation.AddToRoomCache:
customEvent = new CustomEvent(actor.ActorNr, raiseEventRequest.EvCode, raiseEventRequest.Data) { Cache = raiseEventRequest.Cache };
this.eventCache.AddEvent(customEvent);
return true;
case (byte)CacheOperation.AddToRoomCacheGlobal:
customEvent = new CustomEvent(0, raiseEventRequest.EvCode, raiseEventRequest.Data) { Cache = raiseEventRequest.Cache };
this.eventCache.AddEvent(customEvent);
return true;
case (byte)CacheOperation.MergeCache:
{
EventCache eventCache;
if (!this.eventCacheOld.TryGetValue(actor.ActorNr, out eventCache))
{
eventCache = new EventCache();
this.eventCacheOld.Add(actor.ActorNr, eventCache);
}
Hashtable @event;
if (eventCache.TryGetValue(raiseEventRequest.EvCode, out @event))
{
// null events are removed
if (raiseEventRequest.Data == null)
{
eventCache.Remove(raiseEventRequest.EvCode);
}
else
{
// merge or delete
foreach (DictionaryEntry pair in raiseEventRequest.Data)
{
// null values are removed
if (pair.Value == null)
{
@event.Remove(pair.Key);
}
else
{
@event[pair.Key] = pair.Value;
}
}
}
}
else if (raiseEventRequest.Data != null)
{
// new
@event = raiseEventRequest.Data;
eventCache.Add(raiseEventRequest.EvCode, @event);
}
return true;
}
case (byte)CacheOperation.RemoveCache:
{
EventCache eventCache;
if (!this.eventCacheOld.TryGetValue(actor.ActorNr, out eventCache))
{
return true;
}
eventCache.Remove(raiseEventRequest.EvCode);
return true;
}
case (byte)CacheOperation.ReplaceCache:
{
EventCache eventCache;
if (!this.eventCacheOld.TryGetValue(actor.ActorNr, out eventCache))
{
eventCache = new EventCache();
this.eventCacheOld.Add(actor.ActorNr, eventCache);
}
eventCache.Remove(raiseEventRequest.EvCode);
if (raiseEventRequest.Data != null)
{
Hashtable @event = raiseEventRequest.Data;
eventCache.Add(raiseEventRequest.EvCode, @event);
}
return true;
}
default:
{
return false;
}
}
}
/// <summary>
/// Handles the <see cref = "RaiseEventRequest" />: Sends a <see cref = "CustomEvent" /> to actors in the room.
/// </summary>
/// <param name = "peer">
/// The peer.
/// </param>
/// <param name = "raiseEventRequest">
/// The operation
/// </param>
/// <param name = "sendParameters">
/// The send Parameters.
/// </param>
protected virtual void HandleRaiseEventOperation(LitePeer peer, RaiseEventRequest raiseEventRequest, SendParameters sendParameters)
{
// get the actor who send the operation request
Actor actor = this.GetActorByPeer(peer);
if (actor == null)
{
return;
}
sendParameters.Flush = raiseEventRequest.Flush;
if (raiseEventRequest.Cache == (byte)CacheOperation.RemoveFromRoomCache)
{
this.eventCache.RemoveEvents(raiseEventRequest);
var response = new OperationResponse(raiseEventRequest.OperationRequest.OperationCode) { ReturnCode = 0 };
peer.SendOperationResponse(response, sendParameters);
return;
}
if (raiseEventRequest.Cache == (byte)CacheOperation.RemoveFromCacheForActorsLeft)
{
var currentActorNumbers = this.Actors.GetActorNumbers();
this.eventCache.RemoveEventsForActorsNotInList(currentActorNumbers);
var response = new OperationResponse(raiseEventRequest.OperationRequest.OperationCode) { ReturnCode = 0 };
peer.SendOperationResponse(response, sendParameters);
return;
}
// publish the custom event
var customEvent = new CustomEvent(actor.ActorNr, raiseEventRequest.EvCode, raiseEventRequest.Data) { Cache = raiseEventRequest.Cache };
bool updateEventCache = false;
IEnumerable<Actor> recipients;
if (raiseEventRequest.Actors != null && raiseEventRequest.Actors.Length > 0)
{
recipients = this.Actors.GetActorsByNumbers(raiseEventRequest.Actors);
}
else
{
switch ((ReceiverGroup)raiseEventRequest.ReceiverGroup)
{
case ReceiverGroup.All:
recipients = this.Actors;
updateEventCache = true;
break;
case ReceiverGroup.Others:
recipients = this.Actors.GetExcludedList(actor);
updateEventCache = true;
break;
case ReceiverGroup.MasterClient:
recipients = new[] { this.Actors[0] };
break;
default:
peer.SendOperationResponse(
new OperationResponse
{
OperationCode = raiseEventRequest.OperationRequest.OperationCode,
ReturnCode = -1,
DebugMessage = "Invalid ReceiverGroup " + raiseEventRequest.ReceiverGroup
},
sendParameters);
return;
}
}
if (updateEventCache && raiseEventRequest.Cache != (byte)CacheOperation.DoNotCache)
{
if (!this.UpdateEventCache(actor, raiseEventRequest))
{
peer.SendOperationResponse(
new OperationResponse
{
OperationCode = raiseEventRequest.OperationRequest.OperationCode,
ReturnCode = -1,
DebugMessage = "Invalid cache operation " + raiseEventRequest.Cache
},
sendParameters);
return;
}
}
this.PublishEvent(customEvent, recipients, sendParameters);
}
/// <summary>
/// Sends the complete list of games to one actor in the lobby.
/// </summary>
/// <param name="actor">
/// The actor.
/// </param>
private void PublishGameList(Actor actor)
{
// Room list needs to be cloned because it is serialized in other thread and is changed at the same time
var customEvent = new CustomEvent(actor.ActorNr, (byte)LiteLobbyEventCode.GameList, (Hashtable)this.roomList.Clone());
this.PublishEvent(customEvent, actor, new SendParameters { Unreliable = true });
}
/// <summary>
/// Sends the change list to all users in the lobby and then clears it.
/// </summary>
private void PublishChangeList()
{
if (this.changedRoomList.Count > 0 && this.Actors.Count > 0)
{
var customEvent = new CustomEvent(0, (byte)LiteLobbyEventCode.GameListUpdate, this.changedRoomList);
// PublishEvent(hashtable) uses a reference to hashtable, which means you can not clear it (see below)
this.PublishEvent(customEvent, this.Actors, new SendParameters { Unreliable = true });
}
this.changedRoomList = new Hashtable(); // creating a new hashtable, as PublishEvent() uses just a ref to the data to be sent
this.SchedulePublishChanges();
}
/// <summary>
/// Handles the <see cref = "RaiseEventRequest" />: Sends a <see cref = "CustomEvent" /> to actors in the room.
/// </summary>
/// <param name = "peer">
/// The peer.
/// </param>
/// <param name = "raiseEventRequest">
/// The operation
/// </param>
/// <param name = "sendParameters">
/// The send Parameters.
/// </param>
protected virtual void HandleRaiseEventOperation(LitePeer peer, RaiseEventRequest raiseEventRequest,
SendParameters sendParameters)
{
// get the actor who send the operation request
Actor actor = this.GetActorByPeer(peer);
if (actor == null)
{
return;
}
var customEvent = new CustomEvent(actor.ActorNr, raiseEventRequest.EvCode, raiseEventRequest.Data);
if (raiseEventRequest.Cache == (byte) CacheOperation.RemoveFromRoomCache)
{
this.roomEventCache.RemoveEvents(raiseEventRequest);
var response = new OperationResponse(raiseEventRequest.OperationRequest.OperationCode) {ReturnCode = 0};
peer.SendOperationResponse(response, sendParameters);
return;
}
// publish the custom event
IEnumerable<Actor> recipients;
if (raiseEventRequest.Actors != null && raiseEventRequest.Actors.Length > 0)
{
recipients = this.Actors.GetActorsByNumbers(raiseEventRequest.Actors);
sendParameters.Flush = raiseEventRequest.Flush;
this.PublishEvent(customEvent, recipients, sendParameters);
return;
}
switch (raiseEventRequest.ReceiverGroup)
{
case (byte) ReceiverGroup.All:
{
recipients = this.Actors;
if (raiseEventRequest.Cache == (byte) CacheOperation.AddToRoomCache)
{
customEvent.Cache = raiseEventRequest.Cache;
this.roomEventCache.AddEvent(customEvent);
}
else if (raiseEventRequest.Cache == (byte) CacheOperation.AddToRoomCacheGlobal)
{
customEvent.ActorNr = 0;
customEvent.Cache = raiseEventRequest.Cache;
this.roomEventCache.AddEvent(customEvent);
}
else if (raiseEventRequest.Cache != (byte) CacheOperation.DoNotCache)
{
if (!this.UpdateEventCache(actor, raiseEventRequest, raiseEventRequest.EvCode))
{
peer.SendOperationResponse(
new OperationResponse
{
OperationCode = raiseEventRequest.OperationRequest.OperationCode,
ReturnCode = -1,
DebugMessage = "Invalid cache operation " + raiseEventRequest.Cache
},
sendParameters);
return;
}
customEvent.Cache = raiseEventRequest.Cache;
}
break;
}
case (byte) ReceiverGroup.Others:
{
recipients = this.Actors.GetExcludedList(actor);
if (raiseEventRequest.Cache == (byte) CacheOperation.AddToRoomCache)
{
customEvent.Cache = raiseEventRequest.Cache;
this.roomEventCache.AddEvent(customEvent);
}
else if (raiseEventRequest.Cache == (byte) CacheOperation.AddToRoomCacheGlobal)
{
customEvent.ActorNr = 0;
customEvent.Cache = raiseEventRequest.Cache;
this.roomEventCache.AddEvent(customEvent);
}
else if (raiseEventRequest.Cache != (byte) CacheOperation.DoNotCache)
{
if (!this.UpdateEventCache(actor, raiseEventRequest, raiseEventRequest.EvCode))
{
peer.SendOperationResponse(
new OperationResponse
{
OperationCode = raiseEventRequest.OperationRequest.OperationCode,
ReturnCode = -1,
DebugMessage = "Invalid cache operation " + raiseEventRequest.Cache
},
sendParameters);
return;
}
customEvent.Cache = raiseEventRequest.Cache;
}
break;
}
case (byte) ReceiverGroup.MasterClient:
{
recipients = new[] {this.Actors[0]};
break;
}
default:
{
peer.SendOperationResponse(
new OperationResponse
{
OperationCode = raiseEventRequest.OperationRequest.OperationCode,
ReturnCode = -1,
DebugMessage = "Invalid ReceiverGroup " + raiseEventRequest.ReceiverGroup
},
sendParameters);
return;
}
}
this.PublishEvent(customEvent, recipients, sendParameters);
}
/// <summary>
/// Helper method of <see cref = "HandleRaiseEventOperation" />.
/// Stores an event for new actors.
/// </summary>
/// <param name = "actor">
/// The actor.
/// </param>
/// <param name = "raiseEventRequest">
/// The raise event request.
/// </param>
/// <param name="msg">
/// Contains an error message if the method returns false.
/// </param>
/// <returns>
/// True if <see cref = "RaiseEventRequest.Cache" /> is valid.
/// </returns>
protected bool UpdateEventCache(Actor actor, RaiseEventRequest raiseEventRequest, out string msg)
{
msg = null;
CustomEvent customEvent;
switch (raiseEventRequest.Cache)
{
case (byte)CacheOperation.DoNotCache:
return true;
case (byte)CacheOperation.AddToRoomCache:
customEvent = new CustomEvent(actor.ActorNr, raiseEventRequest.EvCode, raiseEventRequest.Data);
this.eventCache.AddEvent(customEvent);
return true;
case (byte)CacheOperation.AddToRoomCacheGlobal:
customEvent = new CustomEvent(0, raiseEventRequest.EvCode, raiseEventRequest.Data);
this.eventCache.AddEvent(customEvent);
return true;
}
// cache operations for the actor event cache currently only working with hashtable data
Hashtable eventData;
if (raiseEventRequest.Data == null || raiseEventRequest.Data is Hashtable)
{
eventData = (Hashtable)raiseEventRequest.Data;
}
else
{
msg = string.Format("Cache operation '{0}' requires a Hashtable as event data.", raiseEventRequest.Cache);
return false;
}
switch (raiseEventRequest.Cache)
{
case (byte)CacheOperation.MergeCache:
this.actorEventCache.MergeEvent(actor.ActorNr, raiseEventRequest.EvCode, eventData);
return true;
case (byte)CacheOperation.RemoveCache:
this.actorEventCache.RemoveEvent(actor.ActorNr, raiseEventRequest.EvCode);
return true;
case (byte)CacheOperation.ReplaceCache:
this.actorEventCache.ReplaceEvent(actor.ActorNr, raiseEventRequest.EvCode, eventData);
return true;
default:
msg = string.Format("Unknown cache operation '{0}'.", raiseEventRequest.Cache);
return false;
}
}
