private OperationResponse ItemOperationSubscribeItem(Item item, SubscribeItem operation, InterestArea interestArea, MmoActor actor)
{
if (item.Disposed)
{
return(operation.GetOperationResponse((int)ReturnCode.ItemNotFound, "ItemNotFound"));
}
lock (interestArea.SyncRoot) {
interestArea.SubscribeItem(item);
}
if (operation.PropertiesRevision.HasValue == false || operation.PropertiesRevision.Value != item.properties.propertiesRevision)
{
var properties = new ItemPropertiesSet {
ItemId = item.Id,
ItemType = item.Type,
PropertiesRevision = item.properties.propertiesRevision,
PropertiesSet = item.properties.raw
};
var eventData = new EventData((byte)EventCode.ItemPropertiesSet, properties);
actor.Peer.SendEvent(eventData, new SendParameters {
ChannelId = Settings.ItemEventChannel
});
}
// don't send response
operation.OnComplete();
return(null);
}
public override OperationResponse Handle(MmoActor actor, OperationRequest request, SendParameters sendParameters)
{
var operation = new SubscribeItem(actor.Peer.Protocol, request);
if (!operation.IsValid)
{
return(new OperationResponse(request.OperationCode)
{
ReturnCode = (int)ReturnCode.InvalidOperationParameter, DebugMessage = operation.GetErrorMessage()
});
}
operation.OnStart();
IWorld world = actor.World;
InterestArea interestArea;
if (actor.TryGetInterestArea(operation.InterestAreaId, out interestArea) == false)
{
return(operation.GetOperationResponse((int)ReturnCode.InterestAreaNotFound, "InterestAreaNotFound"));
}
Item item;
bool actorItem = actor.TryGetItem(operation.ItemType, operation.ItemId, out item);
if (actorItem == false)
{
if (world.ItemCache.TryGetItem(operation.ItemType, operation.ItemId, out item) == false)
{
return(operation.GetOperationResponse((int)ReturnCode.ItemNotFound, "ItemNotFound"));
}
}
if (actorItem)
{
// we are already in the item thread, invoke directly
return(this.ItemOperationSubscribeItem(item, operation, interestArea, actor));
}
// second parameter (peer) allows us to send an error event to the client (in case of an error)
item.Fiber.Enqueue(() => actor.ExecItemOperation(() => this.ItemOperationSubscribeItem(item, operation, interestArea, actor), sendParameters));
// operation continues later
return(null);
}
private OperationResponse ItemOperationSubscribeItem(Item item, SubscribeItem operation)
{
if (item.Disposed)
{
return(operation.GetOperationResponse((int)ReturnCode.ItemNotFound, "ItemNotFound"));
}
this.interestItems.SubscribeItem(item);
var subscribeEvent = new ItemSubscribed
{
ItemId = item.Id,
ItemType = item.Type,
Position = item.Position,
PropertiesRevision = item.PropertiesRevision,
Rotation = item.Rotation
};
var eventData = new EventData((byte)EventCode.ItemSubscribed, subscribeEvent);
this.Peer.SendEvent(eventData, new SendParameters {
ChannelId = Settings.ItemEventChannel
});
if (operation.PropertiesRevision.HasValue == false || operation.PropertiesRevision.Value != item.PropertiesRevision)
{
var properties = new ItemPropertiesSet
{
ItemId = item.Id,
PropertiesRevision = item.PropertiesRevision,
PropertiesSet = new Hashtable(item.Properties)
};
var propEventData = new EventData((byte)EventCode.ItemPropertiesSet, properties);
this.Peer.SendEvent(propEventData, new SendParameters {
ChannelId = Settings.ItemEventChannel
});
}
// don't send response
operation.OnComplete();
return(null);
}