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OpenSimMirror/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs

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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSimulator Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.Net;
using System.Reflection;
using System.Threading;
using OpenSim.Framework;
using OpenSim.Framework.Capabilities;
using OpenSim.Framework.Client;
using OpenSim.Framework.Monitoring;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Region.Physics.Manager;
using OpenSim.Services.Interfaces;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
using OpenMetaverse;
using log4net;
using Nini.Config;
using Mono.Addins;
namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
{
[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "EntityTransferModule")]
public class EntityTransferModule : INonSharedRegionModule, IEntityTransferModule
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public const int DefaultMaxTransferDistance = 4095;
public const bool WaitForAgentArrivedAtDestinationDefault = true;
public string OutgoingTransferVersionName { get; set; }
/// <summary>
/// Determine the maximum entity transfer version we will use for teleports.
/// </summary>
public float MaxOutgoingTransferVersion { get; set; }
/// <summary>
/// The maximum distance, in standard region units (256m) that an agent is allowed to transfer.
/// </summary>
public int MaxTransferDistance { get; set; }
/// <summary>
/// If true then on a teleport, the source region waits for a callback from the destination region. If
/// a callback fails to arrive within a set time then the user is pulled back into the source region.
/// </summary>
public bool WaitForAgentArrivedAtDestination { get; set; }
/// <summary>
/// If true then we ask the viewer to disable teleport cancellation and ignore teleport requests.
/// </summary>
/// <remarks>
/// This is useful in situations where teleport is very likely to always succeed and we want to avoid a
/// situation where avatars can be come 'stuck' due to a failed teleport cancellation. Unfortunately, the
/// nature of the teleport protocol makes it extremely difficult (maybe impossible) to make teleport
/// cancellation consistently suceed.
/// </remarks>
public bool DisableInterRegionTeleportCancellation { get; set; }
/// <summary>
/// Number of times inter-region teleport was attempted.
/// </summary>
private Stat m_interRegionTeleportAttempts;
/// <summary>
/// Number of times inter-region teleport was aborted (due to simultaneous client logout).
/// </summary>
private Stat m_interRegionTeleportAborts;
/// <summary>
/// Number of times inter-region teleport was successfully cancelled by the client.
/// </summary>
private Stat m_interRegionTeleportCancels;
/// <summary>
/// Number of times inter-region teleport failed due to server/client/network problems (e.g. viewer failed to
/// connect with destination region).
/// </summary>
/// <remarks>
/// This is not necessarily a problem for this simulator - in open-grid/hg conditions, viewer connectivity to
/// destination simulator is unknown.
/// </remarks>
private Stat m_interRegionTeleportFailures;
protected bool m_Enabled = false;
public Scene Scene { get; private set; }
/// <summary>
/// Handles recording and manipulation of state for entities that are in transfer within or between regions
/// (cross or teleport).
/// </summary>
private EntityTransferStateMachine m_entityTransferStateMachine;
private ExpiringCache<UUID, ExpiringCache<ulong, DateTime>> m_bannedRegions =
new ExpiringCache<UUID, ExpiringCache<ulong, DateTime>>();
private IEventQueue m_eqModule;
private IRegionCombinerModule m_regionCombinerModule;
#region ISharedRegionModule
public Type ReplaceableInterface
{
get { return null; }
}
public virtual string Name
{
get { return "BasicEntityTransferModule"; }
}
public virtual void Initialise(IConfigSource source)
{
IConfig moduleConfig = source.Configs["Modules"];
if (moduleConfig != null)
{
string name = moduleConfig.GetString("EntityTransferModule", "");
if (name == Name)
{
InitialiseCommon(source);
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: {0} enabled.", Name);
}
}
}
/// <summary>
/// Initialize config common for this module and any descendents.
/// </summary>
/// <param name="source"></param>
protected virtual void InitialiseCommon(IConfigSource source)
{
string transferVersionName = "SIMULATION";
float maxTransferVersion = 0.2f;
IConfig transferConfig = source.Configs["EntityTransfer"];
if (transferConfig != null)
{
string rawVersion
= transferConfig.GetString(
"MaxOutgoingTransferVersion",
string.Format("{0}/{1}", transferVersionName, maxTransferVersion));
string[] rawVersionComponents = rawVersion.Split(new char[] { '/' });
bool versionValid = false;
if (rawVersionComponents.Length >= 2)
versionValid = float.TryParse(rawVersionComponents[1], out maxTransferVersion);
if (!versionValid)
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: MaxOutgoingTransferVersion {0} is invalid, using {1}",
rawVersion, string.Format("{0}/{1}", transferVersionName, maxTransferVersion));
}
else
{
transferVersionName = rawVersionComponents[0];
m_log.InfoFormat(
"[ENTITY TRANSFER MODULE]: MaxOutgoingTransferVersion set to {0}",
string.Format("{0}/{1}", transferVersionName, maxTransferVersion));
}
DisableInterRegionTeleportCancellation
= transferConfig.GetBoolean("DisableInterRegionTeleportCancellation", false);
WaitForAgentArrivedAtDestination
= transferConfig.GetBoolean("wait_for_callback", WaitForAgentArrivedAtDestinationDefault);
MaxTransferDistance = transferConfig.GetInt("max_distance", DefaultMaxTransferDistance);
}
else
{
MaxTransferDistance = DefaultMaxTransferDistance;
}
OutgoingTransferVersionName = transferVersionName;
MaxOutgoingTransferVersion = maxTransferVersion;
m_entityTransferStateMachine = new EntityTransferStateMachine(this);
m_Enabled = true;
}
public virtual void PostInitialise()
{
}
public virtual void AddRegion(Scene scene)
{
if (!m_Enabled)
return;
Scene = scene;
m_interRegionTeleportAttempts =
new Stat(
"InterRegionTeleportAttempts",
"Number of inter-region teleports attempted.",
"This does not count attempts which failed due to pre-conditions (e.g. target simulator refused access).\n"
+ "You can get successfully teleports by subtracting aborts, cancels and teleport failures from this figure.",
"",
"entitytransfer",
Scene.Name,
StatType.Push,
null,
StatVerbosity.Debug);
m_interRegionTeleportAborts =
new Stat(
"InterRegionTeleportAborts",
"Number of inter-region teleports aborted due to client actions.",
"The chief action is simultaneous logout whilst teleporting.",
"",
"entitytransfer",
Scene.Name,
StatType.Push,
null,
StatVerbosity.Debug);
m_interRegionTeleportCancels =
new Stat(
"InterRegionTeleportCancels",
"Number of inter-region teleports cancelled by the client.",
null,
"",
"entitytransfer",
Scene.Name,
StatType.Push,
null,
StatVerbosity.Debug);
m_interRegionTeleportFailures =
new Stat(
"InterRegionTeleportFailures",
"Number of inter-region teleports that failed due to server/client/network issues.",
"This number may not be very helpful in open-grid/hg situations as the network connectivity/quality of destinations is uncontrollable.",
"",
"entitytransfer",
Scene.Name,
StatType.Push,
null,
StatVerbosity.Debug);
StatsManager.RegisterStat(m_interRegionTeleportAttempts);
StatsManager.RegisterStat(m_interRegionTeleportAborts);
StatsManager.RegisterStat(m_interRegionTeleportCancels);
StatsManager.RegisterStat(m_interRegionTeleportFailures);
scene.RegisterModuleInterface<IEntityTransferModule>(this);
scene.EventManager.OnNewClient += OnNewClient;
}
protected virtual void OnNewClient(IClientAPI client)
{
client.OnTeleportHomeRequest += TriggerTeleportHome;
client.OnTeleportLandmarkRequest += RequestTeleportLandmark;
if (!DisableInterRegionTeleportCancellation)
client.OnTeleportCancel += OnClientCancelTeleport;
client.OnConnectionClosed += OnConnectionClosed;
}
public virtual void Close() {}
public virtual void RemoveRegion(Scene scene)
{
if (m_Enabled)
{
StatsManager.DeregisterStat(m_interRegionTeleportAttempts);
StatsManager.DeregisterStat(m_interRegionTeleportAborts);
StatsManager.DeregisterStat(m_interRegionTeleportCancels);
StatsManager.DeregisterStat(m_interRegionTeleportFailures);
}
}
public virtual void RegionLoaded(Scene scene)
{
if (!m_Enabled)
return;
m_eqModule = Scene.RequestModuleInterface<IEventQueue>();
m_regionCombinerModule = Scene.RequestModuleInterface<IRegionCombinerModule>();
}
#endregion
#region Agent Teleports
private void OnConnectionClosed(IClientAPI client)
{
if (client.IsLoggingOut && m_entityTransferStateMachine.UpdateInTransit(client.AgentId, AgentTransferState.Aborting))
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Aborted teleport request from {0} in {1} due to simultaneous logout",
client.Name, Scene.Name);
}
}
private void OnClientCancelTeleport(IClientAPI client)
{
m_entityTransferStateMachine.UpdateInTransit(client.AgentId, AgentTransferState.Cancelling);
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Received teleport cancel request from {0} in {1}", client.Name, Scene.Name);
}
public void Teleport(ScenePresence sp, ulong regionHandle, Vector3 position, Vector3 lookAt, uint teleportFlags)
{
if (sp.Scene.Permissions.IsGridGod(sp.UUID))
{
// This user will be a God in the destination scene, too
teleportFlags |= (uint)TeleportFlags.Godlike;
}
if (!sp.Scene.Permissions.CanTeleport(sp.UUID))
return;
string destinationRegionName = "(not found)";
// Record that this agent is in transit so that we can prevent simultaneous requests and do later detection
// of whether the destination region completes the teleport.
if (!m_entityTransferStateMachine.SetInTransit(sp.UUID))
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Ignoring teleport request of {0} {1} to {2}@{3} - agent is already in transit.",
sp.Name, sp.UUID, position, regionHandle);
sp.ControllingClient.SendTeleportFailed("Previous teleport process incomplete. Please retry shortly.");
return;
}
try
{
// Reset animations; the viewer does that in teleports.
sp.Animator.ResetAnimations();
if (regionHandle == sp.Scene.RegionInfo.RegionHandle)
{
destinationRegionName = sp.Scene.RegionInfo.RegionName;
TeleportAgentWithinRegion(sp, position, lookAt, teleportFlags);
}
else // Another region possibly in another simulator
{
GridRegion finalDestination = null;
try
{
TeleportAgentToDifferentRegion(
sp, regionHandle, position, lookAt, teleportFlags, out finalDestination);
}
finally
{
if (finalDestination != null)
destinationRegionName = finalDestination.RegionName;
}
}
}
catch (Exception e)
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: Exception on teleport of {0} from {1}@{2} to {3}@{4}: {5}{6}",
sp.Name, sp.AbsolutePosition, sp.Scene.RegionInfo.RegionName, position, destinationRegionName,
e.Message, e.StackTrace);
sp.ControllingClient.SendTeleportFailed("Internal error");
}
finally
{
m_entityTransferStateMachine.ResetFromTransit(sp.UUID);
}
}
/// <summary>
/// Teleports the agent within its current region.
/// </summary>
/// <param name="sp"></param>
/// <param name="position"></param>
/// <param name="lookAt"></param>
/// <param name="teleportFlags"></param
private void TeleportAgentWithinRegion(ScenePresence sp, Vector3 position, Vector3 lookAt, uint teleportFlags)
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Teleport for {0} to {1} within {2}",
sp.Name, position, sp.Scene.RegionInfo.RegionName);
// Teleport within the same region
if (IsOutsideRegion(sp.Scene, position) || position.Z < 0)
{
Vector3 emergencyPos = new Vector3(128, 128, 128);
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: RequestTeleportToLocation() was given an illegal position of {0} for avatar {1}, {2} in {3}. Substituting {4}",
position, sp.Name, sp.UUID, Scene.Name, emergencyPos);
position = emergencyPos;
}
// TODO: Get proper AVG Height
float localAVHeight = 1.56f;
float posZLimit = 22;
// TODO: Check other Scene HeightField
if (position.X > 0 && position.X <= (int)Constants.RegionSize && position.Y > 0 && position.Y <= (int)Constants.RegionSize)
{
posZLimit = (float)sp.Scene.Heightmap[(int)position.X, (int)position.Y];
}
float newPosZ = posZLimit + localAVHeight;
if (posZLimit >= (position.Z - (localAVHeight / 2)) && !(Single.IsInfinity(newPosZ) || Single.IsNaN(newPosZ)))
{
position.Z = newPosZ;
}
m_entityTransferStateMachine.UpdateInTransit(sp.UUID, AgentTransferState.Transferring);
sp.ControllingClient.SendTeleportStart(teleportFlags);
sp.ControllingClient.SendLocalTeleport(position, lookAt, teleportFlags);
sp.Velocity = Vector3.Zero;
sp.Teleport(position);
m_entityTransferStateMachine.UpdateInTransit(sp.UUID, AgentTransferState.ReceivedAtDestination);
foreach (SceneObjectGroup grp in sp.GetAttachments())
{
sp.Scene.EventManager.TriggerOnScriptChangedEvent(grp.LocalId, (uint)Changed.TELEPORT);
}
m_entityTransferStateMachine.UpdateInTransit(sp.UUID, AgentTransferState.CleaningUp);
}
/// <summary>
/// Teleports the agent to a different region.
/// </summary>
/// <param name='sp'></param>
/// <param name='regionHandle'>/param>
/// <param name='position'></param>
/// <param name='lookAt'></param>
/// <param name='teleportFlags'></param>
/// <param name='finalDestination'></param>
private void TeleportAgentToDifferentRegion(
ScenePresence sp, ulong regionHandle, Vector3 position,
Vector3 lookAt, uint teleportFlags, out GridRegion finalDestination)
{
uint x = 0, y = 0;
Utils.LongToUInts(regionHandle, out x, out y);
GridRegion reg = Scene.GridService.GetRegionByPosition(sp.Scene.RegionInfo.ScopeID, (int)x, (int)y);
if (reg != null)
{
finalDestination = GetFinalDestination(reg);
if (finalDestination == null)
{
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: Final destination is having problems. Unable to teleport {0} {1}",
sp.Name, sp.UUID);
sp.ControllingClient.SendTeleportFailed("Problem at destination");
return;
}
// Check that these are not the same coordinates
if (finalDestination.RegionLocX == sp.Scene.RegionInfo.RegionLocX &&
finalDestination.RegionLocY == sp.Scene.RegionInfo.RegionLocY)
{
// Can't do. Viewer crashes
sp.ControllingClient.SendTeleportFailed("Space warp! You would crash. Move to a different region and try again.");
return;
}
// Validate assorted conditions
string reason = string.Empty;
if (!ValidateGenericConditions(sp, reg, finalDestination, teleportFlags, out reason))
{
sp.ControllingClient.SendTeleportFailed(reason);
return;
}
//
// This is it
//
DoTeleportInternal(sp, reg, finalDestination, position, lookAt, teleportFlags);
//
//
//
}
else
{
finalDestination = null;
// TP to a place that doesn't exist (anymore)
// Inform the viewer about that
sp.ControllingClient.SendTeleportFailed("The region you tried to teleport to doesn't exist anymore");
// and set the map-tile to '(Offline)'
uint regX, regY;
Utils.LongToUInts(regionHandle, out regX, out regY);
MapBlockData block = new MapBlockData();
block.X = (ushort)(regX / Constants.RegionSize);
block.Y = (ushort)(regY / Constants.RegionSize);
block.Access = 254; // == not there
List<MapBlockData> blocks = new List<MapBlockData>();
blocks.Add(block);
sp.ControllingClient.SendMapBlock(blocks, 0);
}
}
// Nothing to validate here
protected virtual bool ValidateGenericConditions(ScenePresence sp, GridRegion reg, GridRegion finalDestination, uint teleportFlags, out string reason)
{
reason = String.Empty;
return true;
}
/// <summary>
/// Determines whether this instance is within the max transfer distance.
/// </summary>
/// <param name="sourceRegion"></param>
/// <param name="destRegion"></param>
/// <returns>
/// <c>true</c> if this instance is within max transfer distance; otherwise, <c>false</c>.
/// </returns>
private bool IsWithinMaxTeleportDistance(RegionInfo sourceRegion, GridRegion destRegion)
{
if(MaxTransferDistance == 0)
return true;
// m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Source co-ords are x={0} y={1}", curRegionX, curRegionY);
//
// m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Final dest is x={0} y={1} {2}@{3}",
// destRegionX, destRegionY, finalDestination.RegionID, finalDestination.ServerURI);
// Insanely, RegionLoc on RegionInfo is the 256m map co-ord whilst GridRegion.RegionLoc is the raw meters position.
return Math.Abs(sourceRegion.RegionLocX - destRegion.RegionCoordX) <= MaxTransferDistance
&& Math.Abs(sourceRegion.RegionLocY - destRegion.RegionCoordY) <= MaxTransferDistance;
}
/// <summary>
/// Wraps DoTeleportInternal() and manages the transfer state.
/// </summary>
public void DoTeleport(
ScenePresence sp, GridRegion reg, GridRegion finalDestination,
Vector3 position, Vector3 lookAt, uint teleportFlags)
{
// Record that this agent is in transit so that we can prevent simultaneous requests and do later detection
// of whether the destination region completes the teleport.
if (!m_entityTransferStateMachine.SetInTransit(sp.UUID))
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Ignoring teleport request of {0} {1} to {2} ({3}) {4}/{5} - agent is already in transit.",
sp.Name, sp.UUID, reg.ServerURI, finalDestination.ServerURI, finalDestination.RegionName, position);
return;
}
try
{
DoTeleportInternal(sp, reg, finalDestination, position, lookAt, teleportFlags);
}
catch (Exception e)
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: Exception on teleport of {0} from {1}@{2} to {3}@{4}: {5}{6}",
sp.Name, sp.AbsolutePosition, sp.Scene.RegionInfo.RegionName, position, finalDestination.RegionName,
e.Message, e.StackTrace);
sp.ControllingClient.SendTeleportFailed("Internal error");
}
finally
{
m_entityTransferStateMachine.ResetFromTransit(sp.UUID);
}
}
/// <summary>
/// Teleports the agent to another region.
/// This method doesn't manage the transfer state; the caller must do that.
/// </summary>
private void DoTeleportInternal(
ScenePresence sp, GridRegion reg, GridRegion finalDestination,
Vector3 position, Vector3 lookAt, uint teleportFlags)
{
if (reg == null || finalDestination == null)
{
sp.ControllingClient.SendTeleportFailed("Unable to locate destination");
return;
}
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Teleporting {0} {1} from {2} to {3} ({4}) {5}/{6}",
sp.Name, sp.UUID, sp.Scene.RegionInfo.RegionName,
reg.ServerURI, finalDestination.ServerURI, finalDestination.RegionName, position);
RegionInfo sourceRegion = sp.Scene.RegionInfo;
if (!IsWithinMaxTeleportDistance(sourceRegion, finalDestination))
{
sp.ControllingClient.SendTeleportFailed(
string.Format(
"Can't teleport to {0} ({1},{2}) from {3} ({4},{5}), destination is more than {6} regions way",
finalDestination.RegionName, finalDestination.RegionCoordX, finalDestination.RegionCoordY,
sourceRegion.RegionName, sourceRegion.RegionLocX, sourceRegion.RegionLocY,
MaxTransferDistance));
return;
}
uint newRegionX = (uint)(reg.RegionHandle >> 40);
uint newRegionY = (((uint)(reg.RegionHandle)) >> 8);
uint oldRegionX = (uint)(sp.Scene.RegionInfo.RegionHandle >> 40);
uint oldRegionY = (((uint)(sp.Scene.RegionInfo.RegionHandle)) >> 8);
ulong destinationHandle = finalDestination.RegionHandle;
// Let's do DNS resolution only once in this process, please!
// This may be a costly operation. The reg.ExternalEndPoint field is not a passive field,
// it's actually doing a lot of work.
IPEndPoint endPoint = finalDestination.ExternalEndPoint;
if (endPoint.Address == null)
{
sp.ControllingClient.SendTeleportFailed("Remote Region appears to be down");
return;
}
if (!sp.ValidateAttachments())
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Failed validation of all attachments for teleport of {0} from {1} to {2}. Continuing.",
sp.Name, sp.Scene.Name, finalDestination.RegionName);
string reason;
string version;
if (!Scene.SimulationService.QueryAccess(
finalDestination, sp.ControllingClient.AgentId, Vector3.Zero, out version, out reason))
{
sp.ControllingClient.SendTeleportFailed(reason);
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: {0} was stopped from teleporting from {1} to {2} because {3}",
sp.Name, sp.Scene.Name, finalDestination.RegionName, reason);
return;
}
// Before this point, teleport 'failure' is due to checkable pre-conditions such as whether the target
// simulator can be found and is explicitly prepared to allow access. Therefore, we will not count these
// as server attempts.
m_interRegionTeleportAttempts.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: {0} max transfer version is {1}/{2}, {3} max version is {4}",
sp.Scene.Name, OutgoingTransferVersionName, MaxOutgoingTransferVersion, finalDestination.RegionName, version);
// Fixing a bug where teleporting while sitting results in the avatar ending up removed from
// both regions
if (sp.ParentID != (uint)0)
sp.StandUp();
if (DisableInterRegionTeleportCancellation)
teleportFlags |= (uint)TeleportFlags.DisableCancel;
// At least on LL 3.3.4, this is not strictly necessary - a teleport will succeed without sending this to
// the viewer. However, it might mean that the viewer does not see the black teleport screen (untested).
sp.ControllingClient.SendTeleportStart(teleportFlags);
// the avatar.Close below will clear the child region list. We need this below for (possibly)
// closing the child agents, so save it here (we need a copy as it is Clear()-ed).
//List<ulong> childRegions = avatar.KnownRegionHandles;
// Compared to ScenePresence.CrossToNewRegion(), there's no obvious code to handle a teleport
// failure at this point (unlike a border crossing failure). So perhaps this can never fail
// once we reach here...
//avatar.Scene.RemoveCapsHandler(avatar.UUID);
string capsPath = String.Empty;
AgentCircuitData currentAgentCircuit = sp.Scene.AuthenticateHandler.GetAgentCircuitData(sp.ControllingClient.CircuitCode);
AgentCircuitData agentCircuit = sp.ControllingClient.RequestClientInfo();
agentCircuit.startpos = position;
agentCircuit.child = true;
agentCircuit.Appearance = sp.Appearance;
if (currentAgentCircuit != null)
{
agentCircuit.ServiceURLs = currentAgentCircuit.ServiceURLs;
agentCircuit.IPAddress = currentAgentCircuit.IPAddress;
agentCircuit.Viewer = currentAgentCircuit.Viewer;
agentCircuit.Channel = currentAgentCircuit.Channel;
agentCircuit.Mac = currentAgentCircuit.Mac;
agentCircuit.Id0 = currentAgentCircuit.Id0;
}
if (NeedsNewAgent(sp.DrawDistance, oldRegionX, newRegionX, oldRegionY, newRegionY))
{
// brand new agent, let's create a new caps seed
agentCircuit.CapsPath = CapsUtil.GetRandomCapsObjectPath();
}
// We're going to fallback to V1 if the destination gives us anything smaller than 0.2 or we're forcing
// use of the earlier protocol
float versionNumber = 0.1f;
string[] versionComponents = version.Split(new char[] { '/' });
if (versionComponents.Length >= 2)
float.TryParse(versionComponents[1], out versionNumber);
if (versionNumber == 0.2f && MaxOutgoingTransferVersion >= versionNumber)
TransferAgent_V2(sp, agentCircuit, reg, finalDestination, endPoint, teleportFlags, oldRegionX, newRegionX, oldRegionY, newRegionY, version, out reason);
else
TransferAgent_V1(sp, agentCircuit, reg, finalDestination, endPoint, teleportFlags, oldRegionX, newRegionX, oldRegionY, newRegionY, version, out reason);
}
private void TransferAgent_V1(ScenePresence sp, AgentCircuitData agentCircuit, GridRegion reg, GridRegion finalDestination,
IPEndPoint endPoint, uint teleportFlags, uint oldRegionX, uint newRegionX, uint oldRegionY, uint newRegionY, string version, out string reason)
{
ulong destinationHandle = finalDestination.RegionHandle;
AgentCircuitData currentAgentCircuit = sp.Scene.AuthenticateHandler.GetAgentCircuitData(sp.ControllingClient.CircuitCode);
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Using TP V1 for {0} going from {1} to {2}",
sp.Name, Scene.Name, finalDestination.RegionName);
// Let's create an agent there if one doesn't exist yet.
// NOTE: logout will always be false for a non-HG teleport.
bool logout = false;
if (!CreateAgent(sp, reg, finalDestination, agentCircuit, teleportFlags, out reason, out logout))
{
m_interRegionTeleportFailures.Value++;
sp.ControllingClient.SendTeleportFailed(String.Format("Teleport refused: {0}", reason));
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Teleport of {0} from {1} to {2} was refused because {3}",
sp.Name, sp.Scene.RegionInfo.RegionName, finalDestination.RegionName, reason);
return;
}
if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Cancelling)
{
m_interRegionTeleportCancels.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Cancelled teleport of {0} to {1} from {2} after CreateAgent on client request",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
return;
}
else if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Aborting)
{
m_interRegionTeleportAborts.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Aborted teleport of {0} to {1} from {2} after CreateAgent due to previous client close.",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
return;
}
// Past this point we have to attempt clean up if the teleport fails, so update transfer state.
m_entityTransferStateMachine.UpdateInTransit(sp.UUID, AgentTransferState.Transferring);
// OK, it got this agent. Let's close some child agents
sp.CloseChildAgents(newRegionX, newRegionY);
IClientIPEndpoint ipepClient;
string capsPath = String.Empty;
if (NeedsNewAgent(sp.DrawDistance, oldRegionX, newRegionX, oldRegionY, newRegionY))
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Determined that region {0} at {1},{2} needs new child agent for incoming agent {3} from {4}",
finalDestination.RegionName, newRegionX, newRegionY, sp.Name, Scene.Name);
//sp.ControllingClient.SendTeleportProgress(teleportFlags, "Creating agent...");
#region IP Translation for NAT
// Uses ipepClient above
if (sp.ClientView.TryGet(out ipepClient))
{
endPoint.Address = NetworkUtil.GetIPFor(ipepClient.EndPoint, endPoint.Address);
}
#endregion
capsPath = finalDestination.ServerURI + CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
if (m_eqModule != null)
{
// The EnableSimulator message makes the client establish a connection with the destination
// simulator by sending the initial UseCircuitCode UDP packet to the destination containing the
// correct circuit code.
m_eqModule.EnableSimulator(destinationHandle, endPoint, sp.UUID);
// XXX: Is this wait necessary? We will always end up waiting on UpdateAgent for the destination
// simulator to confirm that it has established communication with the viewer.
Thread.Sleep(200);
// At least on LL 3.3.4 for teleports between different regions on the same simulator this appears
// unnecessary - teleport will succeed and SEED caps will be requested without it (though possibly
// only on TeleportFinish). This is untested for region teleport between different simulators
// though this probably also works.
m_eqModule.EstablishAgentCommunication(sp.UUID, endPoint, capsPath);
}
else
{
// XXX: This is a little misleading since we're information the client of its avatar destination,
// which may or may not be a neighbour region of the source region. This path is probably little
// used anyway (with EQ being the one used). But it is currently being used for test code.
sp.ControllingClient.InformClientOfNeighbour(destinationHandle, endPoint);
}
}
else
{
agentCircuit.CapsPath = sp.Scene.CapsModule.GetChildSeed(sp.UUID, reg.RegionHandle);
capsPath = finalDestination.ServerURI + CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
}
// Let's send a full update of the agent. This is a synchronous call.
AgentData agent = new AgentData();
sp.CopyTo(agent);
agent.Position = agentCircuit.startpos;
SetCallbackURL(agent, sp.Scene.RegionInfo);
// We will check for an abort before UpdateAgent since UpdateAgent will require an active viewer to
// establish th econnection to the destination which makes it return true.
if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Aborting)
{
m_interRegionTeleportAborts.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Aborted teleport of {0} to {1} from {2} before UpdateAgent",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
return;
}
// A common teleport failure occurs when we can send CreateAgent to the
// destination region but the viewer cannot establish the connection (e.g. due to network issues between
// the viewer and the destination). In this case, UpdateAgent timesout after 10 seconds, although then
// there's a further 10 second wait whilst we attempt to tell the destination to delete the agent in Fail().
if (!UpdateAgent(reg, finalDestination, agent, sp))
{
if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Aborting)
{
m_interRegionTeleportAborts.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Aborted teleport of {0} to {1} from {2} after UpdateAgent due to previous client close.",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
return;
}
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: UpdateAgent failed on teleport of {0} to {1}. Keeping avatar in {2}",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
Fail(sp, finalDestination, logout, currentAgentCircuit.SessionID.ToString(), "Connection between viewer and destination region could not be established.");
return;
}
if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Cancelling)
{
m_interRegionTeleportCancels.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Cancelled teleport of {0} to {1} from {2} after UpdateAgent on client request",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
CleanupFailedInterRegionTeleport(sp, currentAgentCircuit.SessionID.ToString(), finalDestination);
return;
}
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Sending new CAPS seed url {0} from {1} to {2}",
capsPath, sp.Scene.RegionInfo.RegionName, sp.Name);
// We need to set this here to avoid an unlikely race condition when teleporting to a neighbour simulator,
// where that neighbour simulator could otherwise request a child agent create on the source which then
// closes our existing agent which is still signalled as root.
sp.IsChildAgent = true;
// OK, send TPFinish to the client, so that it starts the process of contacting the destination region
if (m_eqModule != null)
{
m_eqModule.TeleportFinishEvent(destinationHandle, 13, endPoint, 0, teleportFlags, capsPath, sp.UUID);
}
else
{
sp.ControllingClient.SendRegionTeleport(destinationHandle, 13, endPoint, 4,
teleportFlags, capsPath);
}
// TeleportFinish makes the client send CompleteMovementIntoRegion (at the destination), which
// trigers a whole shebang of things there, including MakeRoot. So let's wait for confirmation
// that the client contacted the destination before we close things here.
if (!m_entityTransferStateMachine.WaitForAgentArrivedAtDestination(sp.UUID))
{
if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Aborting)
{
m_interRegionTeleportAborts.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Aborted teleport of {0} to {1} from {2} after WaitForAgentArrivedAtDestination due to previous client close.",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
return;
}
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: Teleport of {0} to {1} from {2} failed due to no callback from destination region. Returning avatar to source region.",
sp.Name, finalDestination.RegionName, sp.Scene.RegionInfo.RegionName);
Fail(sp, finalDestination, logout, currentAgentCircuit.SessionID.ToString(), "Destination region did not signal teleport completion.");
return;
}
m_entityTransferStateMachine.UpdateInTransit(sp.UUID, AgentTransferState.CleaningUp);
// For backwards compatibility
if (version == "Unknown" || version == string.Empty)
{
// CrossAttachmentsIntoNewRegion is a synchronous call. We shouldn't need to wait after it
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Old simulator, sending attachments one by one...");
CrossAttachmentsIntoNewRegion(finalDestination, sp, true);
}
// May need to logout or other cleanup
AgentHasMovedAway(sp, logout);
// Well, this is it. The agent is over there.
KillEntity(sp.Scene, sp.LocalId);
// Now let's make it officially a child agent
sp.MakeChildAgent();
// Finally, let's close this previously-known-as-root agent, when the jump is outside the view zone
if (NeedsClosing(sp.DrawDistance, oldRegionX, newRegionX, oldRegionY, newRegionY, reg))
{
if (!sp.Scene.IncomingPreCloseClient(sp))
return;
// We need to delay here because Imprudence viewers, unlike v1 or v3, have a short (<200ms, <500ms) delay before
// they regard the new region as the current region after receiving the AgentMovementComplete
// response. If close is sent before then, it will cause the viewer to quit instead.
//
// This sleep can be increased if necessary. However, whilst it's active,
// an agent cannot teleport back to this region if it has teleported away.
Thread.Sleep(2000);
sp.Scene.CloseAgent(sp.UUID, false);
}
else
{
// now we have a child agent in this region.
sp.Reset();
}
}
private void TransferAgent_V2(ScenePresence sp, AgentCircuitData agentCircuit, GridRegion reg, GridRegion finalDestination,
IPEndPoint endPoint, uint teleportFlags, uint oldRegionX, uint newRegionX, uint oldRegionY, uint newRegionY, string version, out string reason)
{
ulong destinationHandle = finalDestination.RegionHandle;
AgentCircuitData currentAgentCircuit = sp.Scene.AuthenticateHandler.GetAgentCircuitData(sp.ControllingClient.CircuitCode);
// Let's create an agent there if one doesn't exist yet.
// NOTE: logout will always be false for a non-HG teleport.
bool logout = false;
if (!CreateAgent(sp, reg, finalDestination, agentCircuit, teleportFlags, out reason, out logout))
{
m_interRegionTeleportFailures.Value++;
sp.ControllingClient.SendTeleportFailed(String.Format("Teleport refused: {0}", reason));
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Teleport of {0} from {1} to {2} was refused because {3}",
sp.Name, sp.Scene.RegionInfo.RegionName, finalDestination.RegionName, reason);
return;
}
if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Cancelling)
{
m_interRegionTeleportCancels.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Cancelled teleport of {0} to {1} from {2} after CreateAgent on client request",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
return;
}
else if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Aborting)
{
m_interRegionTeleportAborts.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Aborted teleport of {0} to {1} from {2} after CreateAgent due to previous client close.",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
return;
}
// Past this point we have to attempt clean up if the teleport fails, so update transfer state.
m_entityTransferStateMachine.UpdateInTransit(sp.UUID, AgentTransferState.Transferring);
IClientIPEndpoint ipepClient;
string capsPath = String.Empty;
if (NeedsNewAgent(sp.DrawDistance, oldRegionX, newRegionX, oldRegionY, newRegionY))
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Determined that region {0} at {1},{2} needs new child agent for agent {3} from {4}",
finalDestination.RegionName, newRegionX, newRegionY, sp.Name, Scene.Name);
//sp.ControllingClient.SendTeleportProgress(teleportFlags, "Creating agent...");
#region IP Translation for NAT
// Uses ipepClient above
if (sp.ClientView.TryGet(out ipepClient))
{
endPoint.Address = NetworkUtil.GetIPFor(ipepClient.EndPoint, endPoint.Address);
}
#endregion
capsPath = finalDestination.ServerURI + CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
}
else
{
agentCircuit.CapsPath = sp.Scene.CapsModule.GetChildSeed(sp.UUID, reg.RegionHandle);
capsPath = finalDestination.ServerURI + CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
}
// We need to set this here to avoid an unlikely race condition when teleporting to a neighbour simulator,
// where that neighbour simulator could otherwise request a child agent create on the source which then
// closes our existing agent which is still signalled as root.
//sp.IsChildAgent = true;
// New protocol: send TP Finish directly, without prior ES or EAC. That's what happens in the Linden grid
if (m_eqModule != null)
m_eqModule.TeleportFinishEvent(destinationHandle, 13, endPoint, 0, teleportFlags, capsPath, sp.UUID);
else
sp.ControllingClient.SendRegionTeleport(destinationHandle, 13, endPoint, 4,
teleportFlags, capsPath);
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Sending new CAPS seed url {0} from {1} to {2}",
capsPath, sp.Scene.RegionInfo.RegionName, sp.Name);
// Let's send a full update of the agent.
AgentData agent = new AgentData();
sp.CopyTo(agent);
agent.Position = agentCircuit.startpos;
agent.SenderWantsToWaitForRoot = true;
//SetCallbackURL(agent, sp.Scene.RegionInfo);
// Reset the do not close flag. This must be done before the destination opens child connections (here
// triggered by UpdateAgent) to avoid race conditions. However, we also want to reset it as late as possible
// to avoid a situation where an unexpectedly early call to Scene.NewUserConnection() wrongly results
// in no close.
sp.DoNotCloseAfterTeleport = false;
// Send the Update. If this returns true, we know the client has contacted the destination
// via CompleteMovementIntoRegion, so we can let go.
// If it returns false, something went wrong, and we need to abort.
if (!UpdateAgent(reg, finalDestination, agent, sp))
{
if (m_entityTransferStateMachine.GetAgentTransferState(sp.UUID) == AgentTransferState.Aborting)
{
m_interRegionTeleportAborts.Value++;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Aborted teleport of {0} to {1} from {2} after UpdateAgent due to previous client close.",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
return;
}
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: UpdateAgent failed on teleport of {0} to {1}. Keeping avatar in {2}",
sp.Name, finalDestination.RegionName, sp.Scene.Name);
Fail(sp, finalDestination, logout, currentAgentCircuit.SessionID.ToString(), "Connection between viewer and destination region could not be established.");
return;
}
m_entityTransferStateMachine.UpdateInTransit(sp.UUID, AgentTransferState.CleaningUp);
// Need to signal neighbours whether child agents may need closing irrespective of whether this
// one needed closing. We also need to close child agents as quickly as possible to avoid complicated
// race conditions with rapid agent releporting (e.g. from A1 to a non-neighbour B, back
// to a neighbour A2 then off to a non-neighbour C). Closing child agents any later requires complex
// distributed checks to avoid problems in rapid reteleporting scenarios and where child agents are
// abandoned without proper close by viewer but then re-used by an incoming connection.
sp.CloseChildAgents(newRegionX, newRegionY);
// May need to logout or other cleanup
AgentHasMovedAway(sp, logout);
// Well, this is it. The agent is over there.
KillEntity(sp.Scene, sp.LocalId);
// Now let's make it officially a child agent
sp.MakeChildAgent();
// Finally, let's close this previously-known-as-root agent, when the jump is outside the view zone
if (NeedsClosing(sp.DrawDistance, oldRegionX, newRegionX, oldRegionY, newRegionY, reg))
{
if (!sp.Scene.IncomingPreCloseClient(sp))
return;
// RED ALERT!!!!
// PLEASE DO NOT DECREASE THIS WAIT TIME UNDER ANY CIRCUMSTANCES.
// THE VIEWERS SEEM TO NEED SOME TIME AFTER RECEIVING MoveAgentIntoRegion
// BEFORE THEY SETTLE IN THE NEW REGION.
// DECREASING THE WAIT TIME HERE WILL EITHER RESULT IN A VIEWER CRASH OR
// IN THE AVIE BEING PLACED IN INFINITY FOR A COUPLE OF SECONDS.
Thread.Sleep(15000);
// OK, it got this agent. Let's close everything
// If we shouldn't close the agent due to some other region renewing the connection
// then this will be handled in IncomingCloseAgent under lock conditions
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Closing agent {0} in {1} after teleport", sp.Name, Scene.Name);
sp.Scene.CloseAgent(sp.UUID, false);
}
else
{
// now we have a child agent in this region.
sp.Reset();
}
}
/// <summary>
/// Clean up an inter-region teleport that did not complete, either because of simulator failure or cancellation.
/// </summary>
/// <remarks>
/// All operations here must be idempotent so that we can call this method at any point in the teleport process
/// up until we send the TeleportFinish event quene event to the viewer.
/// <remarks>
/// <param name='sp'> </param>
/// <param name='finalDestination'></param>
protected virtual void CleanupFailedInterRegionTeleport(ScenePresence sp, string auth_token, GridRegion finalDestination)
{
m_entityTransferStateMachine.UpdateInTransit(sp.UUID, AgentTransferState.CleaningUp);
if (sp.IsChildAgent) // We had set it to child before attempted TP (V1)
{
sp.IsChildAgent = false;
ReInstantiateScripts(sp);
EnableChildAgents(sp);
}
// Finally, kill the agent we just created at the destination.
// XXX: Possibly this should be done asynchronously.
Scene.SimulationService.CloseAgent(finalDestination, sp.UUID, auth_token);
}
/// <summary>
/// Signal that the inter-region teleport failed and perform cleanup.
/// </summary>
/// <param name='sp'></param>
/// <param name='finalDestination'></param>
/// <param name='logout'></param>
/// <param name='reason'>Human readable reason for teleport failure. Will be sent to client.</param>
protected virtual void Fail(ScenePresence sp, GridRegion finalDestination, bool logout, string auth_code, string reason)
{
CleanupFailedInterRegionTeleport(sp, auth_code, finalDestination);
m_interRegionTeleportFailures.Value++;
sp.ControllingClient.SendTeleportFailed(
string.Format(
"Problems connecting to destination {0}, reason: {1}", finalDestination.RegionName, reason));
sp.Scene.EventManager.TriggerTeleportFail(sp.ControllingClient, logout);
}
protected virtual bool CreateAgent(ScenePresence sp, GridRegion reg, GridRegion finalDestination, AgentCircuitData agentCircuit, uint teleportFlags, out string reason, out bool logout)
{
logout = false;
bool success = Scene.SimulationService.CreateAgent(finalDestination, agentCircuit, teleportFlags, out reason);
if (success)
sp.Scene.EventManager.TriggerTeleportStart(sp.ControllingClient, reg, finalDestination, teleportFlags, logout);
return success;
}
protected virtual bool UpdateAgent(GridRegion reg, GridRegion finalDestination, AgentData agent, ScenePresence sp)
{
return Scene.SimulationService.UpdateAgent(finalDestination, agent);
}
protected virtual void SetCallbackURL(AgentData agent, RegionInfo region)
{
agent.CallbackURI = region.ServerURI + "agent/" + agent.AgentID.ToString() + "/" + region.RegionID.ToString() + "/release/";
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Set release callback URL to {0} in {1}",
agent.CallbackURI, region.RegionName);
}
/// <summary>
/// Clean up operations once an agent has moved away through cross or teleport.
/// </summary>
/// <param name='sp'></param>
/// <param name='logout'></param>
protected virtual void AgentHasMovedAway(ScenePresence sp, bool logout)
{
if (sp.Scene.AttachmentsModule != null)
sp.Scene.AttachmentsModule.DeleteAttachmentsFromScene(sp, true);
}
protected void KillEntity(Scene scene, uint localID)
{
scene.SendKillObject(new List<uint> { localID });
}
protected virtual GridRegion GetFinalDestination(GridRegion region)
{
return region;
}
protected virtual bool NeedsNewAgent(float drawdist, uint oldRegionX, uint newRegionX, uint oldRegionY, uint newRegionY)
{
if (m_regionCombinerModule != null && m_regionCombinerModule.IsRootForMegaregion(Scene.RegionInfo.RegionID))
{
Vector2 swCorner, neCorner;
GetMegaregionViewRange(out swCorner, out neCorner);
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Megaregion view of {0} is from {1} to {2} with new agent check for {3},{4}",
Scene.Name, swCorner, neCorner, newRegionX, newRegionY);
return !(newRegionX >= swCorner.X && newRegionX <= neCorner.X && newRegionY >= swCorner.Y && newRegionY <= neCorner.Y);
}
else
{
return Util.IsOutsideView(drawdist, oldRegionX, newRegionX, oldRegionY, newRegionY);
}
}
protected virtual bool NeedsClosing(float drawdist, uint oldRegionX, uint newRegionX, uint oldRegionY, uint newRegionY, GridRegion reg)
{
return Util.IsOutsideView(drawdist, oldRegionX, newRegionX, oldRegionY, newRegionY);
}
protected virtual bool IsOutsideRegion(Scene s, Vector3 pos)
{
if (s.TestBorderCross(pos, Cardinals.N))
return true;
if (s.TestBorderCross(pos, Cardinals.S))
return true;
if (s.TestBorderCross(pos, Cardinals.E))
return true;
if (s.TestBorderCross(pos, Cardinals.W))
return true;
return false;
}
#endregion
#region Landmark Teleport
/// <summary>
/// Tries to teleport agent to landmark.
/// </summary>
/// <param name="remoteClient"></param>
/// <param name="regionHandle"></param>
/// <param name="position"></param>
public virtual void RequestTeleportLandmark(IClientAPI remoteClient, AssetLandmark lm)
{
GridRegion info = Scene.GridService.GetRegionByUUID(UUID.Zero, lm.RegionID);
if (info == null)
{
// can't find the region: Tell viewer and abort
remoteClient.SendTeleportFailed("The teleport destination could not be found.");
return;
}
((Scene)(remoteClient.Scene)).RequestTeleportLocation(remoteClient, info.RegionHandle, lm.Position,
Vector3.Zero, (uint)(Constants.TeleportFlags.SetLastToTarget | Constants.TeleportFlags.ViaLandmark));
}
#endregion
#region Teleport Home
public virtual void TriggerTeleportHome(UUID id, IClientAPI client)
{
TeleportHome(id, client);
}
public virtual bool TeleportHome(UUID id, IClientAPI client)
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Request to teleport {0} {1} home", client.Name, client.AgentId);
//OpenSim.Services.Interfaces.PresenceInfo pinfo = Scene.PresenceService.GetAgent(client.SessionId);
GridUserInfo uinfo = Scene.GridUserService.GetGridUserInfo(client.AgentId.ToString());
if (uinfo != null)
{
GridRegion regionInfo = Scene.GridService.GetRegionByUUID(UUID.Zero, uinfo.HomeRegionID);
if (regionInfo == null)
{
// can't find the Home region: Tell viewer and abort
client.SendTeleportFailed("Your home region could not be found.");
return false;
}
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Home region of {0} is {1} ({2}-{3})",
client.Name, regionInfo.RegionName, regionInfo.RegionCoordX, regionInfo.RegionCoordY);
// a little eekie that this goes back to Scene and with a forced cast, will fix that at some point...
((Scene)(client.Scene)).RequestTeleportLocation(
client, regionInfo.RegionHandle, uinfo.HomePosition, uinfo.HomeLookAt,
(uint)(Constants.TeleportFlags.SetLastToTarget | Constants.TeleportFlags.ViaHome));
return true;
}
else
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: No grid user information found for {0} {1}. Cannot send home.",
client.Name, client.AgentId);
}
return false;
}
#endregion
#region Agent Crossings
public bool Cross(ScenePresence agent, bool isFlying)
{
Scene scene = agent.Scene;
Vector3 pos = agent.AbsolutePosition;
// m_log.DebugFormat(
// "[ENTITY TRANSFER MODULE]: Crossing agent {0} at pos {1} in {2}", agent.Name, pos, scene.Name);
Vector3 newpos = new Vector3(pos.X, pos.Y, pos.Z);
uint neighbourx = scene.RegionInfo.RegionLocX;
uint neighboury = scene.RegionInfo.RegionLocY;
const float boundaryDistance = 1.7f;
Vector3 northCross = new Vector3(0, boundaryDistance, 0);
Vector3 southCross = new Vector3(0, -1 * boundaryDistance, 0);
Vector3 eastCross = new Vector3(boundaryDistance, 0, 0);
Vector3 westCross = new Vector3(-1 * boundaryDistance, 0, 0);
// distance into new region to place avatar
const float enterDistance = 0.5f;
if (scene.TestBorderCross(pos + westCross, Cardinals.W))
{
if (scene.TestBorderCross(pos + northCross, Cardinals.N))
{
Border b = scene.GetCrossedBorder(pos + northCross, Cardinals.N);
neighboury += (uint)(int)(b.BorderLine.Z / (int)Constants.RegionSize);
}
else if (scene.TestBorderCross(pos + southCross, Cardinals.S))
{
Border b = scene.GetCrossedBorder(pos + southCross, Cardinals.S);
if (b.TriggerRegionX == 0 && b.TriggerRegionY == 0)
{
neighboury--;
newpos.Y = Constants.RegionSize - enterDistance;
}
else
{
agent.IsInTransit = true;
neighboury = b.TriggerRegionY;
neighbourx = b.TriggerRegionX;
Vector3 newposition = pos;
newposition.X += (scene.RegionInfo.RegionLocX - neighbourx) * Constants.RegionSize;
newposition.Y += (scene.RegionInfo.RegionLocY - neighboury) * Constants.RegionSize;
agent.ControllingClient.SendAgentAlertMessage(
String.Format("Moving you to region {0},{1}", neighbourx, neighboury), false);
InformClientToInitiateTeleportToLocation(agent, neighbourx, neighboury, newposition, scene);
return true;
}
}
Border ba = scene.GetCrossedBorder(pos + westCross, Cardinals.W);
if (ba.TriggerRegionX == 0 && ba.TriggerRegionY == 0)
{
neighbourx--;
newpos.X = Constants.RegionSize - enterDistance;
}
else
{
agent.IsInTransit = true;
neighboury = ba.TriggerRegionY;
neighbourx = ba.TriggerRegionX;
Vector3 newposition = pos;
newposition.X += (scene.RegionInfo.RegionLocX - neighbourx) * Constants.RegionSize;
newposition.Y += (scene.RegionInfo.RegionLocY - neighboury) * Constants.RegionSize;
agent.ControllingClient.SendAgentAlertMessage(
String.Format("Moving you to region {0},{1}", neighbourx, neighboury), false);
InformClientToInitiateTeleportToLocation(agent, neighbourx, neighboury, newposition, scene);
return true;
}
}
else if (scene.TestBorderCross(pos + eastCross, Cardinals.E))
{
Border b = scene.GetCrossedBorder(pos + eastCross, Cardinals.E);
neighbourx += (uint)(int)(b.BorderLine.Z / (int)Constants.RegionSize);
newpos.X = enterDistance;
if (scene.TestBorderCross(pos + southCross, Cardinals.S))
{
Border ba = scene.GetCrossedBorder(pos + southCross, Cardinals.S);
if (ba.TriggerRegionX == 0 && ba.TriggerRegionY == 0)
{
neighboury--;
newpos.Y = Constants.RegionSize - enterDistance;
}
else
{
agent.IsInTransit = true;
neighboury = ba.TriggerRegionY;
neighbourx = ba.TriggerRegionX;
Vector3 newposition = pos;
newposition.X += (scene.RegionInfo.RegionLocX - neighbourx) * Constants.RegionSize;
newposition.Y += (scene.RegionInfo.RegionLocY - neighboury) * Constants.RegionSize;
agent.ControllingClient.SendAgentAlertMessage(
String.Format("Moving you to region {0},{1}", neighbourx, neighboury), false);
InformClientToInitiateTeleportToLocation(agent, neighbourx, neighboury, newposition, scene);
return true;
}
}
else if (scene.TestBorderCross(pos + northCross, Cardinals.N))
{
Border c = scene.GetCrossedBorder(pos + northCross, Cardinals.N);
neighboury += (uint)(int)(c.BorderLine.Z / (int)Constants.RegionSize);
newpos.Y = enterDistance;
}
}
else if (scene.TestBorderCross(pos + southCross, Cardinals.S))
{
Border b = scene.GetCrossedBorder(pos + southCross, Cardinals.S);
if (b.TriggerRegionX == 0 && b.TriggerRegionY == 0)
{
neighboury--;
newpos.Y = Constants.RegionSize - enterDistance;
}
else
{
agent.IsInTransit = true;
neighboury = b.TriggerRegionY;
neighbourx = b.TriggerRegionX;
Vector3 newposition = pos;
newposition.X += (scene.RegionInfo.RegionLocX - neighbourx) * Constants.RegionSize;
newposition.Y += (scene.RegionInfo.RegionLocY - neighboury) * Constants.RegionSize;
agent.ControllingClient.SendAgentAlertMessage(
String.Format("Moving you to region {0},{1}", neighbourx, neighboury), false);
InformClientToInitiateTeleportToLocation(agent, neighbourx, neighboury, newposition, scene);
return true;
}
}
else if (scene.TestBorderCross(pos + northCross, Cardinals.N))
{
Border b = scene.GetCrossedBorder(pos + northCross, Cardinals.N);
neighboury += (uint)(int)(b.BorderLine.Z / (int)Constants.RegionSize);
newpos.Y = enterDistance;
}
/*
if (pos.X < boundaryDistance) //West
{
neighbourx--;
newpos.X = Constants.RegionSize - enterDistance;
}
else if (pos.X > Constants.RegionSize - boundaryDistance) // East
{
neighbourx++;
newpos.X = enterDistance;
}
if (pos.Y < boundaryDistance) // South
{
neighboury--;
newpos.Y = Constants.RegionSize - enterDistance;
}
else if (pos.Y > Constants.RegionSize - boundaryDistance) // North
{
neighboury++;
newpos.Y = enterDistance;
}
*/
ulong neighbourHandle = Utils.UIntsToLong((uint)(neighbourx * Constants.RegionSize), (uint)(neighboury * Constants.RegionSize));
int x = (int)(neighbourx * Constants.RegionSize), y = (int)(neighboury * Constants.RegionSize);
ExpiringCache<ulong, DateTime> r;
DateTime banUntil;
if (m_bannedRegions.TryGetValue(agent.ControllingClient.AgentId, out r))
{
if (r.TryGetValue(neighbourHandle, out banUntil))
{
if (DateTime.Now < banUntil)
return false;
r.Remove(neighbourHandle);
}
}
else
{
r = null;
}
GridRegion neighbourRegion = scene.GridService.GetRegionByPosition(scene.RegionInfo.ScopeID, (int)x, (int)y);
string reason;
string version;
if (!scene.SimulationService.QueryAccess(neighbourRegion, agent.ControllingClient.AgentId, newpos, out version, out reason))
{
agent.ControllingClient.SendAlertMessage("Cannot region cross into banned parcel");
if (r == null)
{
r = new ExpiringCache<ulong, DateTime>();
r.Add(neighbourHandle, DateTime.Now + TimeSpan.FromSeconds(15), TimeSpan.FromSeconds(15));
m_bannedRegions.Add(agent.ControllingClient.AgentId, r, TimeSpan.FromSeconds(45));
}
else
{
r.Add(neighbourHandle, DateTime.Now + TimeSpan.FromSeconds(15), TimeSpan.FromSeconds(15));
}
return false;
}
agent.IsInTransit = true;
CrossAgentToNewRegionDelegate d = CrossAgentToNewRegionAsync;
d.BeginInvoke(agent, newpos, neighbourx, neighboury, neighbourRegion, isFlying, version, CrossAgentToNewRegionCompleted, d);
return true;
}
public delegate void InformClientToInitiateTeleportToLocationDelegate(ScenePresence agent, uint regionX, uint regionY,
Vector3 position,
Scene initiatingScene);
private void InformClientToInitiateTeleportToLocation(ScenePresence agent, uint regionX, uint regionY, Vector3 position, Scene initiatingScene)
{
// This assumes that we know what our neighbours are.
InformClientToInitiateTeleportToLocationDelegate d = InformClientToInitiateTeleportToLocationAsync;
d.BeginInvoke(agent, regionX, regionY, position, initiatingScene,
InformClientToInitiateTeleportToLocationCompleted,
d);
}
public void InformClientToInitiateTeleportToLocationAsync(ScenePresence agent, uint regionX, uint regionY, Vector3 position,
Scene initiatingScene)
{
Thread.Sleep(10000);
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Auto-reteleporting {0} to correct megaregion location {1},{2},{3} from {4}",
agent.Name, regionX, regionY, position, initiatingScene.Name);
agent.Scene.RequestTeleportLocation(
agent.ControllingClient,
Utils.UIntsToLong(regionX * (uint)Constants.RegionSize, regionY * (uint)Constants.RegionSize),
position,
agent.Lookat,
(uint)Constants.TeleportFlags.ViaLocation);
/*
IMessageTransferModule im = initiatingScene.RequestModuleInterface<IMessageTransferModule>();
if (im != null)
{
UUID gotoLocation = Util.BuildFakeParcelID(
Util.UIntsToLong(
(regionX *
(uint)Constants.RegionSize),
(regionY *
(uint)Constants.RegionSize)),
(uint)(int)position.X,
(uint)(int)position.Y,
(uint)(int)position.Z);
GridInstantMessage m
= new GridInstantMessage(
initiatingScene,
UUID.Zero,
"Region",
agent.UUID,
(byte)InstantMessageDialog.GodLikeRequestTeleport,
false,
"",
gotoLocation,
false,
new Vector3(127, 0, 0),
new Byte[0],
false);
im.SendInstantMessage(m, delegate(bool success)
{
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Client Initiating Teleport sending IM success = {0}", success);
});
}
*/
}
private void InformClientToInitiateTeleportToLocationCompleted(IAsyncResult iar)
{
InformClientToInitiateTeleportToLocationDelegate icon =
(InformClientToInitiateTeleportToLocationDelegate)iar.AsyncState;
icon.EndInvoke(iar);
}
public delegate ScenePresence CrossAgentToNewRegionDelegate(ScenePresence agent, Vector3 pos, uint neighbourx, uint neighboury, GridRegion neighbourRegion, bool isFlying, string version);
/// <summary>
/// This Closes child agents on neighbouring regions
/// Calls an asynchronous method to do so.. so it doesn't lag the sim.
/// </summary>
protected ScenePresence CrossAgentToNewRegionAsync(
ScenePresence agent, Vector3 pos, uint neighbourx, uint neighboury, GridRegion neighbourRegion,
bool isFlying, string version)
{
if (neighbourRegion == null)
return agent;
if (!m_entityTransferStateMachine.SetInTransit(agent.UUID))
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: Problem crossing user {0} to new region {1} from {2} - agent is already in transit",
agent.Name, neighbourRegion.RegionName, agent.Scene.RegionInfo.RegionName);
return agent;
}
bool transitWasReset = false;
try
{
ulong neighbourHandle = Utils.UIntsToLong((uint)(neighbourx * Constants.RegionSize), (uint)(neighboury * Constants.RegionSize));
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Crossing agent {0} {1} to {2}-{3} running version {4}",
agent.Firstname, agent.Lastname, neighbourx, neighboury, version);
Scene m_scene = agent.Scene;
if (!agent.ValidateAttachments())
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Failed validation of all attachments for region crossing of {0} from {1} to {2}. Continuing.",
agent.Name, agent.Scene.RegionInfo.RegionName, neighbourRegion.RegionName);
pos = pos + agent.Velocity;
Vector3 vel2 = new Vector3(agent.Velocity.X, agent.Velocity.Y, 0);
agent.RemoveFromPhysicalScene();
AgentData cAgent = new AgentData();
agent.CopyTo(cAgent);
cAgent.Position = pos;
if (isFlying)
cAgent.ControlFlags |= (uint)AgentManager.ControlFlags.AGENT_CONTROL_FLY;
// We don't need the callback anymnore
cAgent.CallbackURI = String.Empty;
// Beyond this point, extra cleanup is needed beyond removing transit state
m_entityTransferStateMachine.UpdateInTransit(agent.UUID, AgentTransferState.Transferring);
if (!m_scene.SimulationService.UpdateAgent(neighbourRegion, cAgent))
{
// region doesn't take it
m_entityTransferStateMachine.UpdateInTransit(agent.UUID, AgentTransferState.CleaningUp);
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: Region {0} would not accept update for agent {1} on cross attempt. Returning to original region.",
neighbourRegion.RegionName, agent.Name);
ReInstantiateScripts(agent);
agent.AddToPhysicalScene(isFlying);
return agent;
}
//m_log.Debug("BEFORE CROSS");
//Scene.DumpChildrenSeeds(UUID);
//DumpKnownRegions();
string agentcaps;
if (!agent.KnownRegions.TryGetValue(neighbourRegion.RegionHandle, out agentcaps))
{
m_log.ErrorFormat("[ENTITY TRANSFER MODULE]: No ENTITY TRANSFER MODULE information for region handle {0}, exiting CrossToNewRegion.",
neighbourRegion.RegionHandle);
return agent;
}
// No turning back
agent.IsChildAgent = true;
string capsPath = neighbourRegion.ServerURI + CapsUtil.GetCapsSeedPath(agentcaps);
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Sending new CAPS seed url {0} to client {1}", capsPath, agent.UUID);
if (m_eqModule != null)
{
m_eqModule.CrossRegion(
neighbourHandle, pos, vel2 /* agent.Velocity */, neighbourRegion.ExternalEndPoint,
capsPath, agent.UUID, agent.ControllingClient.SessionId);
}
else
{
agent.ControllingClient.CrossRegion(neighbourHandle, pos, agent.Velocity, neighbourRegion.ExternalEndPoint,
capsPath);
}
// SUCCESS!
m_entityTransferStateMachine.UpdateInTransit(agent.UUID, AgentTransferState.ReceivedAtDestination);
// Unlike a teleport, here we do not wait for the destination region to confirm the receipt.
m_entityTransferStateMachine.UpdateInTransit(agent.UUID, AgentTransferState.CleaningUp);
agent.MakeChildAgent();
// FIXME: Possibly this should occur lower down after other commands to close other agents,
// but not sure yet what the side effects would be.
m_entityTransferStateMachine.ResetFromTransit(agent.UUID);
transitWasReset = true;
// now we have a child agent in this region. Request all interesting data about other (root) agents
agent.SendOtherAgentsAvatarDataToMe();
agent.SendOtherAgentsAppearanceToMe();
// Backwards compatibility. Best effort
if (version == "Unknown" || version == string.Empty)
{
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: neighbor with old version, passing attachments one by one...");
Thread.Sleep(3000); // wait a little now that we're not waiting for the callback
CrossAttachmentsIntoNewRegion(neighbourRegion, agent, true);
}
// Next, let's close the child agent connections that are too far away.
agent.CloseChildAgents(neighbourx, neighboury);
AgentHasMovedAway(agent, false);
//m_log.Debug("AFTER CROSS");
//Scene.DumpChildrenSeeds(UUID);
//DumpKnownRegions();
}
catch (Exception e)
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: Problem crossing user {0} to new region {1} from {2}. Exception {3}{4}",
agent.Name, neighbourRegion.RegionName, agent.Scene.RegionInfo.RegionName, e.Message, e.StackTrace);
// TODO: Might be worth attempting other restoration here such as reinstantiation of scripts, etc.
}
finally
{
if (!transitWasReset)
m_entityTransferStateMachine.ResetFromTransit(agent.UUID);
}
return agent;
}
private void CrossAgentToNewRegionCompleted(IAsyncResult iar)
{
CrossAgentToNewRegionDelegate icon = (CrossAgentToNewRegionDelegate)iar.AsyncState;
ScenePresence agent = icon.EndInvoke(iar);
//// If the cross was successful, this agent is a child agent
//if (agent.IsChildAgent)
// agent.Reset();
//else // Not successful
// agent.RestoreInCurrentScene();
// In any case
agent.IsInTransit = false;
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Crossing agent {0} {1} completed.", agent.Firstname, agent.Lastname);
}
#endregion
#region Enable Child Agent
/// <summary>
/// This informs a single neighbouring region about agent "avatar".
/// Calls an asynchronous method to do so.. so it doesn't lag the sim.
/// </summary>
/// <param name="sp"></param>
/// <param name="region"></param>
public void EnableChildAgent(ScenePresence sp, GridRegion region)
{
m_log.DebugFormat("[ENTITY TRANSFER]: Enabling child agent in new neighbour {0}", region.RegionName);
AgentCircuitData currentAgentCircuit = sp.Scene.AuthenticateHandler.GetAgentCircuitData(sp.ControllingClient.CircuitCode);
AgentCircuitData agent = sp.ControllingClient.RequestClientInfo();
agent.BaseFolder = UUID.Zero;
agent.InventoryFolder = UUID.Zero;
agent.startpos = new Vector3(128, 128, 70);
agent.child = true;
agent.Appearance = sp.Appearance;
agent.CapsPath = CapsUtil.GetRandomCapsObjectPath();
agent.ChildrenCapSeeds = new Dictionary<ulong, string>(sp.Scene.CapsModule.GetChildrenSeeds(sp.UUID));
//m_log.DebugFormat("[XXX] Seeds 1 {0}", agent.ChildrenCapSeeds.Count);
if (!agent.ChildrenCapSeeds.ContainsKey(sp.Scene.RegionInfo.RegionHandle))
agent.ChildrenCapSeeds.Add(sp.Scene.RegionInfo.RegionHandle, sp.ControllingClient.RequestClientInfo().CapsPath);
//m_log.DebugFormat("[XXX] Seeds 2 {0}", agent.ChildrenCapSeeds.Count);
sp.AddNeighbourRegion(region.RegionHandle, agent.CapsPath);
//foreach (ulong h in agent.ChildrenCapSeeds.Keys)
// m_log.DebugFormat("[XXX] --> {0}", h);
//m_log.DebugFormat("[XXX] Adding {0}", region.RegionHandle);
agent.ChildrenCapSeeds.Add(region.RegionHandle, agent.CapsPath);
if (sp.Scene.CapsModule != null)
{
sp.Scene.CapsModule.SetChildrenSeed(sp.UUID, agent.ChildrenCapSeeds);
}
if (currentAgentCircuit != null)
{
agent.ServiceURLs = currentAgentCircuit.ServiceURLs;
agent.IPAddress = currentAgentCircuit.IPAddress;
agent.Viewer = currentAgentCircuit.Viewer;
agent.Channel = currentAgentCircuit.Channel;
agent.Mac = currentAgentCircuit.Mac;
agent.Id0 = currentAgentCircuit.Id0;
}
InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
d.BeginInvoke(sp, agent, region, region.ExternalEndPoint, true,
InformClientOfNeighbourCompleted,
d);
}
#endregion
#region Enable Child Agents
private delegate void InformClientOfNeighbourDelegate(
ScenePresence avatar, AgentCircuitData a, GridRegion reg, IPEndPoint endPoint, bool newAgent);
/// <summary>
/// This informs all neighbouring regions about agent "avatar".
/// </summary>
/// <param name="sp"></param>
public void EnableChildAgents(ScenePresence sp)
{
List<GridRegion> neighbours = new List<GridRegion>();
RegionInfo m_regionInfo = sp.Scene.RegionInfo;
if (m_regionInfo != null)
{
neighbours = RequestNeighbours(sp, m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
}
else
{
m_log.Debug("[ENTITY TRANSFER MODULE]: m_regionInfo was null in EnableChildAgents, is this a NPC?");
}
/// We need to find the difference between the new regions where there are no child agents
/// and the regions where there are already child agents. We only send notification to the former.
List<ulong> neighbourHandles = NeighbourHandles(neighbours); // on this region
neighbourHandles.Add(sp.Scene.RegionInfo.RegionHandle); // add this region too
List<ulong> previousRegionNeighbourHandles;
if (sp.Scene.CapsModule != null)
{
previousRegionNeighbourHandles =
new List<ulong>(sp.Scene.CapsModule.GetChildrenSeeds(sp.UUID).Keys);
}
else
{
previousRegionNeighbourHandles = new List<ulong>();
}
List<ulong> newRegions = NewNeighbours(neighbourHandles, previousRegionNeighbourHandles);
List<ulong> oldRegions = OldNeighbours(neighbourHandles, previousRegionNeighbourHandles);
// Dump("Current Neighbors", neighbourHandles);
// Dump("Previous Neighbours", previousRegionNeighbourHandles);
// Dump("New Neighbours", newRegions);
// Dump("Old Neighbours", oldRegions);
/// Update the scene presence's known regions here on this region
sp.DropOldNeighbours(oldRegions);
/// Collect as many seeds as possible
Dictionary<ulong, string> seeds;
if (sp.Scene.CapsModule != null)
seeds = new Dictionary<ulong, string>(sp.Scene.CapsModule.GetChildrenSeeds(sp.UUID));
else
seeds = new Dictionary<ulong, string>();
//m_log.Debug(" !!! No. of seeds: " + seeds.Count);
if (!seeds.ContainsKey(sp.Scene.RegionInfo.RegionHandle))
seeds.Add(sp.Scene.RegionInfo.RegionHandle, sp.ControllingClient.RequestClientInfo().CapsPath);
/// Create the necessary child agents
List<AgentCircuitData> cagents = new List<AgentCircuitData>();
foreach (GridRegion neighbour in neighbours)
{
if (neighbour.RegionHandle != sp.Scene.RegionInfo.RegionHandle)
{
AgentCircuitData currentAgentCircuit = sp.Scene.AuthenticateHandler.GetAgentCircuitData(sp.ControllingClient.CircuitCode);
AgentCircuitData agent = sp.ControllingClient.RequestClientInfo();
agent.BaseFolder = UUID.Zero;
agent.InventoryFolder = UUID.Zero;
agent.startpos = sp.AbsolutePosition + CalculateOffset(sp, neighbour);
agent.child = true;
agent.Appearance = sp.Appearance;
if (currentAgentCircuit != null)
{
agent.ServiceURLs = currentAgentCircuit.ServiceURLs;
agent.IPAddress = currentAgentCircuit.IPAddress;
agent.Viewer = currentAgentCircuit.Viewer;
agent.Channel = currentAgentCircuit.Channel;
agent.Mac = currentAgentCircuit.Mac;
agent.Id0 = currentAgentCircuit.Id0;
}
if (newRegions.Contains(neighbour.RegionHandle))
{
agent.CapsPath = CapsUtil.GetRandomCapsObjectPath();
sp.AddNeighbourRegion(neighbour.RegionHandle, agent.CapsPath);
seeds.Add(neighbour.RegionHandle, agent.CapsPath);
}
else
{
agent.CapsPath = sp.Scene.CapsModule.GetChildSeed(sp.UUID, neighbour.RegionHandle);
}
cagents.Add(agent);
}
}
/// Update all child agent with everyone's seeds
foreach (AgentCircuitData a in cagents)
{
a.ChildrenCapSeeds = new Dictionary<ulong, string>(seeds);
}
if (sp.Scene.CapsModule != null)
{
sp.Scene.CapsModule.SetChildrenSeed(sp.UUID, seeds);
}
sp.KnownRegions = seeds;
//avatar.Scene.DumpChildrenSeeds(avatar.UUID);
//avatar.DumpKnownRegions();
bool newAgent = false;
int count = 0;
foreach (GridRegion neighbour in neighbours)
{
//m_log.WarnFormat("--> Going to send child agent to {0}", neighbour.RegionName);
// Don't do it if there's already an agent in that region
if (newRegions.Contains(neighbour.RegionHandle))
newAgent = true;
else
newAgent = false;
// continue;
if (neighbour.RegionHandle != sp.Scene.RegionInfo.RegionHandle)
{
try
{
// Let's put this back at sync, so that it doesn't clog
// the network, especially for regions in the same physical server.
// We're really not in a hurry here.
InformClientOfNeighbourAsync(sp, cagents[count], neighbour, neighbour.ExternalEndPoint, newAgent);
//InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
//d.BeginInvoke(sp, cagents[count], neighbour, neighbour.ExternalEndPoint, newAgent,
// InformClientOfNeighbourCompleted,
// d);
}
catch (ArgumentOutOfRangeException)
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: Neighbour Regions response included the current region in the neighbour list. The following region will not display to the client: {0} for region {1} ({2}, {3}).",
neighbour.ExternalHostName,
neighbour.RegionHandle,
neighbour.RegionLocX,
neighbour.RegionLocY);
}
catch (Exception e)
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: Could not resolve external hostname {0} for region {1} ({2}, {3}). {4}",
neighbour.ExternalHostName,
neighbour.RegionHandle,
neighbour.RegionLocX,
neighbour.RegionLocY,
e);
// FIXME: Okay, even though we've failed, we're still going to throw the exception on,
// since I don't know what will happen if we just let the client continue
// XXX: Well, decided to swallow the exception instead for now. Let us see how that goes.
// throw e;
}
}
count++;
}
}
Vector3 CalculateOffset(ScenePresence sp, GridRegion neighbour)
{
int rRegionX = (int)sp.Scene.RegionInfo.RegionLocX;
int rRegionY = (int)sp.Scene.RegionInfo.RegionLocY;
int tRegionX = neighbour.RegionLocX / (int)Constants.RegionSize;
int tRegionY = neighbour.RegionLocY / (int)Constants.RegionSize;
int shiftx = (rRegionX - tRegionX) * (int)Constants.RegionSize;
int shifty = (rRegionY - tRegionY) * (int)Constants.RegionSize;
return new Vector3(shiftx, shifty, 0f);
}
private void InformClientOfNeighbourCompleted(IAsyncResult iar)
{
InformClientOfNeighbourDelegate icon = (InformClientOfNeighbourDelegate)iar.AsyncState;
icon.EndInvoke(iar);
//m_log.WarnFormat(" --> InformClientOfNeighbourCompleted");
}
/// <summary>
/// Async component for informing client of which neighbours exist
/// </summary>
/// <remarks>
/// This needs to run asynchronously, as a network timeout may block the thread for a long while
/// </remarks>
/// <param name="remoteClient"></param>
/// <param name="a"></param>
/// <param name="regionHandle"></param>
/// <param name="endPoint"></param>
private void InformClientOfNeighbourAsync(ScenePresence sp, AgentCircuitData a, GridRegion reg,
IPEndPoint endPoint, bool newAgent)
{
// Let's wait just a little to give time to originating regions to catch up with closing child agents
// after a cross here
Thread.Sleep(500);
Scene scene = sp.Scene;
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Informing {0} {1} about neighbour {2} {3} at ({4},{5})",
sp.Name, sp.UUID, reg.RegionName, endPoint, reg.RegionCoordX, reg.RegionCoordY);
string capsPath = reg.ServerURI + CapsUtil.GetCapsSeedPath(a.CapsPath);
string reason = String.Empty;
bool regionAccepted = scene.SimulationService.CreateAgent(reg, a, (uint)TeleportFlags.Default, out reason);
if (regionAccepted && newAgent)
{
if (m_eqModule != null)
{
#region IP Translation for NAT
IClientIPEndpoint ipepClient;
if (sp.ClientView.TryGet(out ipepClient))
{
endPoint.Address = NetworkUtil.GetIPFor(ipepClient.EndPoint, endPoint.Address);
}
#endregion
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: {0} is sending {1} EnableSimulator for neighbour region {2} @ {3} " +
"and EstablishAgentCommunication with seed cap {4}",
scene.RegionInfo.RegionName, sp.Name, reg.RegionName, reg.RegionHandle, capsPath);
m_eqModule.EnableSimulator(reg.RegionHandle, endPoint, sp.UUID);
m_eqModule.EstablishAgentCommunication(sp.UUID, endPoint, capsPath);
}
else
{
sp.ControllingClient.InformClientOfNeighbour(reg.RegionHandle, endPoint);
// TODO: make Event Queue disablable!
}
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Completed inform {0} {1} about neighbour {2}", sp.Name, sp.UUID, endPoint);
}
if (!regionAccepted)
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: Region {0} did not accept {1} {2}: {3}",
reg.RegionName, sp.Name, sp.UUID, reason);
}
/// <summary>
/// Gets the range considered in view of this megaregion (assuming this is a megaregion).
/// </summary>
/// <remarks>Expressed in 256m units</remarks>
/// <param name='swCorner'></param>
/// <param name='neCorner'></param>
private void GetMegaregionViewRange(out Vector2 swCorner, out Vector2 neCorner)
{
Border[] northBorders = Scene.NorthBorders.ToArray();
Border[] eastBorders = Scene.EastBorders.ToArray();
Vector2 extent = Vector2.Zero;
for (int i = 0; i < eastBorders.Length; i++)
{
extent.X = (eastBorders[i].BorderLine.Z > extent.X) ? eastBorders[i].BorderLine.Z : extent.X;
}
for (int i = 0; i < northBorders.Length; i++)
{
extent.Y = (northBorders[i].BorderLine.Z > extent.Y) ? northBorders[i].BorderLine.Z : extent.Y;
}
// Loss of fraction on purpose
extent.X = ((int)extent.X / (int)Constants.RegionSize);
extent.Y = ((int)extent.Y / (int)Constants.RegionSize);
swCorner.X = Scene.RegionInfo.RegionLocX - 1;
swCorner.Y = Scene.RegionInfo.RegionLocY - 1;
neCorner.X = Scene.RegionInfo.RegionLocX + extent.X;
neCorner.Y = Scene.RegionInfo.RegionLocY + extent.Y;
}
/// <summary>
/// Return the list of regions that are considered to be neighbours to the given scene.
/// </summary>
/// <param name="pScene"></param>
/// <param name="pRegionLocX"></param>
/// <param name="pRegionLocY"></param>
/// <returns></returns>
protected List<GridRegion> RequestNeighbours(ScenePresence avatar, uint pRegionLocX, uint pRegionLocY)
{
Scene pScene = avatar.Scene;
RegionInfo m_regionInfo = pScene.RegionInfo;
// Leaving this as a "megaregions" computation vs "non-megaregions" computation; it isn't
// clear what should be done with a "far view" given that megaregions already extended the
// view to include everything in the megaregion
if (m_regionCombinerModule == null || !m_regionCombinerModule.IsRootForMegaregion(Scene.RegionInfo.RegionID))
{
int dd = avatar.DrawDistance < Constants.RegionSize ? (int)Constants.RegionSize : (int)avatar.DrawDistance;
int startX = (int)pRegionLocX * (int)Constants.RegionSize - dd + (int)(Constants.RegionSize/2);
int startY = (int)pRegionLocY * (int)Constants.RegionSize - dd + (int)(Constants.RegionSize/2);
int endX = (int)pRegionLocX * (int)Constants.RegionSize + dd + (int)(Constants.RegionSize/2);
int endY = (int)pRegionLocY * (int)Constants.RegionSize + dd + (int)(Constants.RegionSize/2);
List<GridRegion> neighbours =
avatar.Scene.GridService.GetRegionRange(m_regionInfo.ScopeID, startX, endX, startY, endY);
neighbours.RemoveAll(delegate(GridRegion r) { return r.RegionID == m_regionInfo.RegionID; });
return neighbours;
}
else
{
Vector2 swCorner, neCorner;
GetMegaregionViewRange(out swCorner, out neCorner);
List<GridRegion> neighbours
= pScene.GridService.GetRegionRange(
m_regionInfo.ScopeID,
(int)swCorner.X * (int)Constants.RegionSize,
(int)neCorner.X * (int)Constants.RegionSize,
(int)swCorner.Y * (int)Constants.RegionSize,
(int)neCorner.Y * (int)Constants.RegionSize);
neighbours.RemoveAll(delegate(GridRegion r) { return r.RegionID == m_regionInfo.RegionID; });
return neighbours;
}
}
private List<ulong> NewNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
{
return currentNeighbours.FindAll(delegate(ulong handle) { return !previousNeighbours.Contains(handle); });
}
// private List<ulong> CommonNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
// {
// return currentNeighbours.FindAll(delegate(ulong handle) { return previousNeighbours.Contains(handle); });
// }
private List<ulong> OldNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
{
return previousNeighbours.FindAll(delegate(ulong handle) { return !currentNeighbours.Contains(handle); });
}
private List<ulong> NeighbourHandles(List<GridRegion> neighbours)
{
List<ulong> handles = new List<ulong>();
foreach (GridRegion reg in neighbours)
{
handles.Add(reg.RegionHandle);
}
return handles;
}
// private void Dump(string msg, List<ulong> handles)
// {
// m_log.InfoFormat("-------------- HANDLE DUMP ({0}) ---------", msg);
// foreach (ulong handle in handles)
// {
// uint x, y;
// Utils.LongToUInts(handle, out x, out y);
// x = x / Constants.RegionSize;
// y = y / Constants.RegionSize;
// m_log.InfoFormat("({0}, {1})", x, y);
// }
// }
#endregion
#region Agent Arrived
public void AgentArrivedAtDestination(UUID id)
{
m_entityTransferStateMachine.SetAgentArrivedAtDestination(id);
}
#endregion
#region Object Transfers
/// <summary>
/// Move the given scene object into a new region depending on which region its absolute position has moved
/// into.
///
/// This method locates the new region handle and offsets the prim position for the new region
/// </summary>
/// <param name="attemptedPosition">the attempted out of region position of the scene object</param>
/// <param name="grp">the scene object that we're crossing</param>
public void Cross(SceneObjectGroup grp, Vector3 attemptedPosition, bool silent)
{
if (grp == null)
return;
if (grp.IsDeleted)
return;
Scene scene = grp.Scene;
if (scene == null)
return;
if (grp.RootPart.DIE_AT_EDGE)
{
// We remove the object here
try
{
scene.DeleteSceneObject(grp, false);
}
catch (Exception)
{
m_log.Warn("[DATABASE]: exception when trying to remove the prim that crossed the border.");
}
return;
}
int thisx = (int)scene.RegionInfo.RegionLocX;
int thisy = (int)scene.RegionInfo.RegionLocY;
Vector3 EastCross = new Vector3(0.1f, 0, 0);
Vector3 WestCross = new Vector3(-0.1f, 0, 0);
Vector3 NorthCross = new Vector3(0, 0.1f, 0);
Vector3 SouthCross = new Vector3(0, -0.1f, 0);
// use this if no borders were crossed!
ulong newRegionHandle
= Util.UIntsToLong((uint)((thisx) * Constants.RegionSize),
(uint)((thisy) * Constants.RegionSize));
Vector3 pos = attemptedPosition;
int changeX = 1;
int changeY = 1;
if (scene.TestBorderCross(attemptedPosition + WestCross, Cardinals.W))
{
if (scene.TestBorderCross(attemptedPosition + SouthCross, Cardinals.S))
{
Border crossedBorderx = scene.GetCrossedBorder(attemptedPosition + WestCross, Cardinals.W);
if (crossedBorderx.BorderLine.Z > 0)
{
pos.X = ((pos.X + crossedBorderx.BorderLine.Z));
changeX = (int)(crossedBorderx.BorderLine.Z / (int)Constants.RegionSize);
}
else
pos.X = ((pos.X + Constants.RegionSize));
Border crossedBordery = scene.GetCrossedBorder(attemptedPosition + SouthCross, Cardinals.S);
//(crossedBorderx.BorderLine.Z / (int)Constants.RegionSize)
if (crossedBordery.BorderLine.Z > 0)
{
pos.Y = ((pos.Y + crossedBordery.BorderLine.Z));
changeY = (int)(crossedBordery.BorderLine.Z / (int)Constants.RegionSize);
}
else
pos.Y = ((pos.Y + Constants.RegionSize));
newRegionHandle
= Util.UIntsToLong((uint)((thisx - changeX) * Constants.RegionSize),
(uint)((thisy - changeY) * Constants.RegionSize));
// x - 1
// y - 1
}
else if (scene.TestBorderCross(attemptedPosition + NorthCross, Cardinals.N))
{
Border crossedBorderx = scene.GetCrossedBorder(attemptedPosition + WestCross, Cardinals.W);
if (crossedBorderx.BorderLine.Z > 0)
{
pos.X = ((pos.X + crossedBorderx.BorderLine.Z));
changeX = (int)(crossedBorderx.BorderLine.Z / (int)Constants.RegionSize);
}
else
pos.X = ((pos.X + Constants.RegionSize));
Border crossedBordery = scene.GetCrossedBorder(attemptedPosition + SouthCross, Cardinals.S);
//(crossedBorderx.BorderLine.Z / (int)Constants.RegionSize)
if (crossedBordery.BorderLine.Z > 0)
{
pos.Y = ((pos.Y + crossedBordery.BorderLine.Z));
changeY = (int)(crossedBordery.BorderLine.Z / (int)Constants.RegionSize);
}
else
pos.Y = ((pos.Y + Constants.RegionSize));
newRegionHandle
= Util.UIntsToLong((uint)((thisx - changeX) * Constants.RegionSize),
(uint)((thisy + changeY) * Constants.RegionSize));
// x - 1
// y + 1
}
else
{
Border crossedBorderx = scene.GetCrossedBorder(attemptedPosition + WestCross, Cardinals.W);
if (crossedBorderx.BorderLine.Z > 0)
{
pos.X = ((pos.X + crossedBorderx.BorderLine.Z));
changeX = (int)(crossedBorderx.BorderLine.Z / (int)Constants.RegionSize);
}
else
pos.X = ((pos.X + Constants.RegionSize));
newRegionHandle
= Util.UIntsToLong((uint)((thisx - changeX) * Constants.RegionSize),
(uint)(thisy * Constants.RegionSize));
// x - 1
}
}
else if (scene.TestBorderCross(attemptedPosition + EastCross, Cardinals.E))
{
if (scene.TestBorderCross(attemptedPosition + SouthCross, Cardinals.S))
{
pos.X = ((pos.X - Constants.RegionSize));
Border crossedBordery = scene.GetCrossedBorder(attemptedPosition + SouthCross, Cardinals.S);
//(crossedBorderx.BorderLine.Z / (int)Constants.RegionSize)
if (crossedBordery.BorderLine.Z > 0)
{
pos.Y = ((pos.Y + crossedBordery.BorderLine.Z));
changeY = (int)(crossedBordery.BorderLine.Z / (int)Constants.RegionSize);
}
else
pos.Y = ((pos.Y + Constants.RegionSize));
newRegionHandle
= Util.UIntsToLong((uint)((thisx + changeX) * Constants.RegionSize),
(uint)((thisy - changeY) * Constants.RegionSize));
// x + 1
// y - 1
}
else if (scene.TestBorderCross(attemptedPosition + NorthCross, Cardinals.N))
{
pos.X = ((pos.X - Constants.RegionSize));
pos.Y = ((pos.Y - Constants.RegionSize));
newRegionHandle
= Util.UIntsToLong((uint)((thisx + changeX) * Constants.RegionSize),
(uint)((thisy + changeY) * Constants.RegionSize));
// x + 1
// y + 1
}
else
{
pos.X = ((pos.X - Constants.RegionSize));
newRegionHandle
= Util.UIntsToLong((uint)((thisx + changeX) * Constants.RegionSize),
(uint)(thisy * Constants.RegionSize));
// x + 1
}
}
else if (scene.TestBorderCross(attemptedPosition + SouthCross, Cardinals.S))
{
Border crossedBordery = scene.GetCrossedBorder(attemptedPosition + SouthCross, Cardinals.S);
//(crossedBorderx.BorderLine.Z / (int)Constants.RegionSize)
if (crossedBordery.BorderLine.Z > 0)
{
pos.Y = ((pos.Y + crossedBordery.BorderLine.Z));
changeY = (int)(crossedBordery.BorderLine.Z / (int)Constants.RegionSize);
}
else
pos.Y = ((pos.Y + Constants.RegionSize));
newRegionHandle
= Util.UIntsToLong((uint)(thisx * Constants.RegionSize), (uint)((thisy - changeY) * Constants.RegionSize));
// y - 1
}
else if (scene.TestBorderCross(attemptedPosition + NorthCross, Cardinals.N))
{
pos.Y = ((pos.Y - Constants.RegionSize));
newRegionHandle
= Util.UIntsToLong((uint)(thisx * Constants.RegionSize), (uint)((thisy + changeY) * Constants.RegionSize));
// y + 1
}
// Offset the positions for the new region across the border
Vector3 oldGroupPosition = grp.RootPart.GroupPosition;
// If we fail to cross the border, then reset the position of the scene object on that border.
uint x = 0, y = 0;
Utils.LongToUInts(newRegionHandle, out x, out y);
GridRegion destination = scene.GridService.GetRegionByPosition(scene.RegionInfo.ScopeID, (int)x, (int)y);
if (destination == null || !CrossPrimGroupIntoNewRegion(destination, pos, grp, silent))
{
m_log.InfoFormat("[ENTITY TRANSFER MODULE] cross region transfer failed for object {0}",grp.UUID);
// We are going to move the object back to the old position so long as the old position
// is in the region
oldGroupPosition.X = Util.Clamp<float>(oldGroupPosition.X,1.0f,(float)Constants.RegionSize-1);
oldGroupPosition.Y = Util.Clamp<float>(oldGroupPosition.Y,1.0f,(float)Constants.RegionSize-1);
oldGroupPosition.Z = Util.Clamp<float>(oldGroupPosition.Z,1.0f,4096.0f);
grp.RootPart.GroupPosition = oldGroupPosition;
// Need to turn off the physics flags, otherwise the object will continue to attempt to
// move out of the region creating an infinite loop of failed attempts to cross
grp.UpdatePrimFlags(grp.RootPart.LocalId,false,grp.IsTemporary,grp.IsPhantom,false);
if (grp.RootPart.KeyframeMotion != null)
grp.RootPart.KeyframeMotion.CrossingFailure();
grp.ScheduleGroupForFullUpdate();
}
}
/// <summary>
/// Move the given scene object into a new region
/// </summary>
/// <param name="newRegionHandle"></param>
/// <param name="grp">Scene Object Group that we're crossing</param>
/// <returns>
/// true if the crossing itself was successful, false on failure
/// FIMXE: we still return true if the crossing object was not successfully deleted from the originating region
/// </returns>
protected bool CrossPrimGroupIntoNewRegion(GridRegion destination, Vector3 newPosition, SceneObjectGroup grp, bool silent)
{
//m_log.Debug(" >>> CrossPrimGroupIntoNewRegion <<<");
bool successYN = false;
grp.RootPart.ClearUpdateSchedule();
//int primcrossingXMLmethod = 0;
if (destination != null)
{
//string objectState = grp.GetStateSnapshot();
//successYN
// = m_sceneGridService.PrimCrossToNeighboringRegion(
// newRegionHandle, grp.UUID, m_serialiser.SaveGroupToXml2(grp), primcrossingXMLmethod);
//if (successYN && (objectState != "") && m_allowScriptCrossings)
//{
// successYN = m_sceneGridService.PrimCrossToNeighboringRegion(
// newRegionHandle, grp.UUID, objectState, 100);
//}
//// And the new channel...
//if (m_interregionCommsOut != null)
// successYN = m_interregionCommsOut.SendCreateObject(newRegionHandle, grp, true);
if (Scene.SimulationService != null)
successYN = Scene.SimulationService.CreateObject(destination, newPosition, grp, true);
if (successYN)
{
// We remove the object here
try
{
grp.Scene.DeleteSceneObject(grp, silent);
}
catch (Exception e)
{
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: Exception deleting the old object left behind on a border crossing for {0}, {1}",
grp, e);
}
}
else
{
if (!grp.IsDeleted)
{
PhysicsActor pa = grp.RootPart.PhysActor;
if (pa != null)
pa.CrossingFailure();
}
m_log.ErrorFormat("[ENTITY TRANSFER MODULE]: Prim crossing failed for {0}", grp);
}
}
else
{
m_log.Error("[ENTITY TRANSFER MODULE]: destination was unexpectedly null in Scene.CrossPrimGroupIntoNewRegion()");
}
return successYN;
}
/// <summary>
/// Cross the attachments for an avatar into the destination region.
/// </summary>
/// <remarks>
/// This is only invoked for simulators released prior to April 2011. Versions of OpenSimulator since then
/// transfer attachments in one go as part of the ChildAgentDataUpdate data passed in the update agent call.
/// </remarks>
/// <param name='destination'></param>
/// <param name='sp'></param>
/// <param name='silent'></param>
protected void CrossAttachmentsIntoNewRegion(GridRegion destination, ScenePresence sp, bool silent)
{
List<SceneObjectGroup> attachments = sp.GetAttachments();
// m_log.DebugFormat(
// "[ENTITY TRANSFER MODULE]: Crossing {0} attachments into {1} for {2}",
// m_attachments.Count, destination.RegionName, sp.Name);
foreach (SceneObjectGroup gobj in attachments)
{
// If the prim group is null then something must have happened to it!
if (gobj != null && !gobj.IsDeleted)
{
SceneObjectGroup clone = (SceneObjectGroup)gobj.CloneForNewScene();
clone.RootPart.GroupPosition = gobj.RootPart.AttachedPos;
clone.IsAttachment = false;
//gobj.RootPart.LastOwnerID = gobj.GetFromAssetID();
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Sending attachment {0} to region {1}",
clone.UUID, destination.RegionName);
CrossPrimGroupIntoNewRegion(destination, Vector3.Zero, clone, silent);
}
}
sp.ClearAttachments();
}
#endregion
#region Misc
public bool IsInTransit(UUID id)
{
return m_entityTransferStateMachine.GetAgentTransferState(id) != null;
}
protected void ReInstantiateScripts(ScenePresence sp)
{
int i = 0;
if (sp.InTransitScriptStates.Count > 0)
{
List<SceneObjectGroup> attachments = sp.GetAttachments();
foreach (SceneObjectGroup sog in attachments)
{
if (i < sp.InTransitScriptStates.Count)
{
sog.SetState(sp.InTransitScriptStates[i++], sp.Scene);
sog.CreateScriptInstances(0, false, sp.Scene.DefaultScriptEngine, 0);
sog.ResumeScripts();
}
else
m_log.ErrorFormat(
"[ENTITY TRANSFER MODULE]: InTransitScriptStates.Count={0} smaller than Attachments.Count={1}",
sp.InTransitScriptStates.Count, attachments.Count);
}
sp.InTransitScriptStates.Clear();
}
}
#endregion
}
}
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