/// <summary>
/// Adds an event to the interest list
/// </summary>
/// <param name="eventData">Event to add</param>
/// <param name="handler">Collection of callbacks that will handle this
/// event</param>
public void EnqueueEvent(InterestListEvent eventData, InterestListEventHandler handler)
{
double?priority = handler.PriorityCallback(eventData, m_presence);
// If this event has a non-null priority for this presence, enqueue it
if (priority.HasValue)
{
QueuedInterestListEvent qile = new QueuedInterestListEvent(eventData, priority.Value, handler);
lock (m_syncRoot)
{
C5.PriorityQueueHandle handle;
if (m_eventIDs.TryGetValue(eventData.ID, out handle))
{
// An event with the same ID already exists in the priority queue. Combine this update with the previous one
qile = handler.CombineCallback(m_eventHeap[handle], qile);
m_eventHeap.Replace(handle, qile);
}
else
{
// This event ID is new
m_eventHeap.Add(ref handle, qile);
m_eventIDs.Add(eventData.ID, handle);
}
}
}
}
public void CreateInterestListEventFor(IScenePresence presence, InterestListEvent eventData)
{
if (presence.InterestList != null)
{
InterestListEventHandler handler;
if (TryGetInterestListHandler(eventData.Type, out handler))
{
presence.InterestList.EnqueueEvent(eventData, handler);
}
}
}
public void CreateInterestListEvent(InterestListEvent eventData)
{
InterestListEventHandler handler;
if (TryGetInterestListHandler(eventData.Type, out handler))
{
ForEachPresence(
delegate(IScenePresence presence)
{
// TODO: Once we have semi-complete implementations of multiple protocols,
// we'll probably want to filter events here to avoid stuffing a bunch of
// cross-protocol events into the wrong queues
if (presence.InterestList != null)
{
presence.InterestList.EnqueueEvent(eventData, handler);
}
}
);
}
}
/// <summary>
/// Default constructor
/// </summary>
public QueuedInterestListEvent(InterestListEvent eventData, double priority, InterestListEventHandler handler)
{
Event = eventData;
Priority = priority;
Handler = handler;
}
/// <summary>
/// The default prioritizer for interest list events. Returns the
/// squared distance between the event and the target presence
/// </summary>
public static double?DefaultPrioritizer(InterestListEvent eventData, IScenePresence presence)
{
// A simple distance-based prioritizer
return(Vector3.DistanceSquared(presence.ScenePosition, eventData.ScenePosition));
}
