/// <summary>
/// Publishes a ItemPositionMessage in the PositionUpdateChannel
/// Subscribes and unsubscribes regions if changed.
/// </summary>
public void UpdateInterestManagement(bool sendMessage)
{
if (sendMessage)
{
// inform attached interst area and radar
ItemPositionMessage message = this.GetPositionUpdateMessage(this.Position);
this.positionUpdateChannel.Publish(message);
}
// Object obj = new Object();
// lock (obj)
{
// update subscriptions if region changed
Region prevRegion = this.CurrentWorldRegion;
Region newRegion = this.World.GetRegion(this.Position);
if (newRegion != this.CurrentWorldRegion)
{
this.CurrentWorldRegion = newRegion;
if (this.regionSubscription != null)
{
this.regionSubscription.Dispose();
}
var snapshot = this.GetItemSnapshot();
var regMessage = new ItemRegionChangedMessage(prevRegion, newRegion, snapshot);
if (prevRegion != null)
{
prevRegion.DelistItem(this); // remove from regions item list
prevRegion.ItemRegionChangedChannel.Publish(regMessage);
// i think for non avatar items like bullet - since they are not tied to ClientInterestArea
// their OnItemEnter and OnItemExit are empty or something idk. this was an attempt to
// manually unsub the fiber so that the on item enter/exit events don't keep getting called
// a good test would be to make the bullet last only .1sec so that it stays in only 1 region
// then see if the current setup removes the fiber subscription
//if (this.type == (byte)ItemType.Bullet)
//{
// Fiber.DeregisterSubscription(prevRegion.RequestItemEnterChannel);
// Fiber.DeregisterSubscription(prevRegion.RequestItemExitChannel);
// Fiber.DeregisterSubscription(this.eventChannel);
//}
}
if (newRegion != null)
{
newRegion.EnlistItem(this); // add to regions item list
newRegion.ItemRegionChangedChannel.Publish(regMessage);
this.regionSubscription = new UnsubscriberCollection(
this.EventChannel.Subscribe(this.Fiber, (m) => newRegion.ItemEventChannel.Publish(m)), // route events through region to interest area
newRegion.RequestItemEnterChannel.Subscribe(this.Fiber, (m) => { m.InterestArea.OnItemEnter(this.GetItemSnapshot()); }), // region entered interest area fires message to let item notify interest area about enter
newRegion.RequestItemExitChannel.Subscribe(this.Fiber, (m) => { m.InterestArea.OnItemExit(this); }) // region exited interest area fires message to let item notify interest area about exit
);
}
}
}
}
private void UpdatePosition(ItemPositionMessage message)
{
Item item = message.Source;
if (this.itemPositions.ContainsKey(item))
{
this.itemPositions[item] = message.Position;
this.PublishUpdate(item, message.Position, false, true);
}
}
/// <summary>
/// The update position.
/// </summary>
/// <param name="message">
/// The message.
/// </param>
private void UpdatePosition(ItemPositionMessage message)
{
var positionUpdate = (MmoItemPositionUpdate)message;
Item item = message.Source;
if (this.itemPositions.ContainsKey(item))
{
this.itemPositions[item] = positionUpdate.Coordinate;
this.PublishUpdate(item, positionUpdate.Coordinate, true);
}
}
private void AttachedItem_OnItemPosition(ItemPositionMessage message)
{
MessageCounters.CounterReceive.Increment();
lock (this.SyncRoot)
{
if (this.AttachedItem == message.Source)
{
this.Position = message.Position;
this.UpdateInterestManagement();
}
}
}
/// <summary>
/// Publishes a ItemPositionMessage in the PositionUpdateChannel
/// Subscribes and unsubscribes regions if changed.
/// </summary>
public void UpdateInterestManagement()
{
// inform attached interst area and radar
ItemPositionMessage message = this.GetPositionUpdateMessage(this.Position);
this.positionUpdateChannel.Publish(message);
// update subscriptions if region changed
Region prevRegion = this.CurrentWorldRegion;
Region newRegion = this.World.GetRegion(this.Position);
if (newRegion != this.CurrentWorldRegion)
{
this.CurrentWorldRegion = newRegion;
if (this.regionSubscription != null)
{
this.regionSubscription.Dispose();
}
var snapshot = this.GetItemSnapshot();
var regMessage = new ItemRegionChangedMessage(prevRegion, newRegion, snapshot);
if (prevRegion != null)
{
prevRegion.ItemRegionChangedChannel.Publish(regMessage);
}
if (newRegion != null)
{
newRegion.ItemRegionChangedChannel.Publish(regMessage);
this.regionSubscription = new UnsubscriberCollection(
this.EventChannel.Subscribe(this.Fiber, (m) => newRegion.ItemEventChannel.Publish(m)), // route events through region to interest area
newRegion.RequestItemEnterChannel.Subscribe(this.Fiber, (m) => { m.InterestArea.OnItemEnter(this.GetItemSnapshot()); }), // region entered interest area fires message to let item notify interest area about enter
newRegion.RequestItemExitChannel.Subscribe(this.Fiber, (m) => { m.InterestArea.OnItemExit(this); }) // region exited interest area fires message to let item notify interest area about exit
);
}
}
}
private void UpdatePosition(ItemPositionMessage message)
{
Item item = message.Source;
if (this.itemPositions.ContainsKey(item))
{
this.itemPositions[item] = message.Position;
this.PublishUpdate(item, message.Position, false, true);
}
}
