/*
* 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.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Services.Interfaces;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
using OpenMetaverse;
using log4net;
using Nini.Config;
namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
{
public class EntityTransferModule : ISharedRegionModule, IEntityTransferModule
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
///
/// The maximum distance, in standard region units (256m) that an agent is allowed to transfer.
///
private int m_MaxTransferDistance = 4095;
public int MaxTransferDistance
{
get { return m_MaxTransferDistance; }
set { m_MaxTransferDistance = value; }
}
protected bool m_Enabled = false;
protected Scene m_aScene;
protected List m_Scenes = new List();
protected List m_agentsInTransit;
private ExpiringCache> m_bannedRegions =
new ExpiringCache>();
#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);
}
}
}
///
/// Initialize config common for this module and any descendents.
///
///
protected virtual void InitialiseCommon(IConfigSource source)
{
IConfig transferConfig = source.Configs["EntityTransfer"];
if (transferConfig != null)
MaxTransferDistance = transferConfig.GetInt("max_distance", 4095);
m_agentsInTransit = new List();
m_Enabled = true;
}
public virtual void PostInitialise()
{
}
public virtual void AddRegion(Scene scene)
{
if (!m_Enabled)
return;
if (m_aScene == null)
m_aScene = scene;
m_Scenes.Add(scene);
scene.RegisterModuleInterface(this);
scene.EventManager.OnNewClient += OnNewClient;
}
protected virtual void OnNewClient(IClientAPI client)
{
client.OnTeleportHomeRequest += TeleportHome;
client.OnTeleportLandmarkRequest += RequestTeleportLandmark;
}
public virtual void Close()
{
if (!m_Enabled)
return;
}
public virtual void RemoveRegion(Scene scene)
{
if (!m_Enabled)
return;
if (scene == m_aScene)
m_aScene = null;
m_Scenes.Remove(scene);
}
public virtual void RegionLoaded(Scene scene)
{
if (!m_Enabled)
return;
}
#endregion
#region Agent Teleports
public void Teleport(ScenePresence sp, ulong regionHandle, Vector3 position, Vector3 lookAt, uint teleportFlags)
{
if (!sp.Scene.Permissions.CanTeleport(sp.UUID))
return;
IEventQueue eq = sp.Scene.RequestModuleInterface();
// Reset animations; the viewer does that in teleports.
sp.Animator.ResetAnimations();
try
{
if (regionHandle == sp.Scene.RegionInfo.RegionHandle)
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: RequestTeleportToLocation {0} within {1}",
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}. Substituting {3}",
position, sp.Name, sp.UUID, 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;
}
sp.ControllingClient.SendTeleportStart(teleportFlags);
sp.ControllingClient.SendLocalTeleport(position, lookAt, teleportFlags);
sp.Teleport(position);
foreach (SceneObjectGroup grp in sp.Attachments)
sp.Scene.EventManager.TriggerOnScriptChangedEvent(grp.LocalId, (uint)Changed.TELEPORT);
}
else // Another region possibly in another simulator
{
uint x = 0, y = 0;
Utils.LongToUInts(regionHandle, out x, out y);
GridRegion reg = m_aScene.GridService.GetRegionByPosition(sp.Scene.RegionInfo.ScopeID, (int)x, (int)y);
if (reg != null)
{
GridRegion finalDestination = GetFinalDestination(reg);
if (finalDestination == null)
{
m_log.WarnFormat("[ENTITY TRANSFER MODULE]: Final destination is having problems. Unable to teleport agent.");
sp.ControllingClient.SendTeleportFailed("Problem at destination");
return;
}
uint curX = 0, curY = 0;
Utils.LongToUInts(sp.Scene.RegionInfo.RegionHandle, out curX, out curY);
int curCellX = (int)(curX / Constants.RegionSize);
int curCellY = (int)(curY / Constants.RegionSize);
int destCellX = (int)(finalDestination.RegionLocX / Constants.RegionSize);
int destCellY = (int)(finalDestination.RegionLocY / Constants.RegionSize);
// 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);
// 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;
}
if (Math.Abs(curCellX - destCellX) > MaxTransferDistance || Math.Abs(curCellY - destCellY) > MaxTransferDistance)
{
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, destCellX, destCellY,
sp.Scene.RegionInfo.RegionName, curCellX, curCellY,
MaxTransferDistance));
return;
}
//
// This is it
//
DoTeleport(sp, reg, finalDestination, position, lookAt, teleportFlags, eq);
//
//
//
}
else
{
// 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 blocks = new List();
blocks.Add(block);
sp.ControllingClient.SendMapBlock(blocks, 0);
}
}
}
catch (Exception e)
{
m_log.WarnFormat("[ENTITY TRANSFER MODULE]: Exception on teleport: {0} {1}", e.Message, e.StackTrace);
sp.ControllingClient.SendTeleportFailed("Internal error");
}
}
public void DoTeleport(ScenePresence sp, GridRegion reg, GridRegion finalDestination, Vector3 position, Vector3 lookAt, uint teleportFlags, IEventQueue eq)
{
if (reg == null || finalDestination == null)
{
sp.ControllingClient.SendTeleportFailed("Unable to locate destination");
return;
}
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Request Teleport to {0} ({1}) {2}/{3}",
reg.ServerURI, finalDestination.ServerURI, finalDestination.RegionName, position);
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)
{
// 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 (!sp.ValidateAttachments())
{
sp.ControllingClient.SendTeleportFailed("Inconsistent attachment state");
return;
}
string reason;
string version;
if (!m_aScene.SimulationService.QueryAccess(finalDestination, sp.ControllingClient.AgentId, Vector3.Zero, out version, out reason))
{
sp.ControllingClient.SendTeleportFailed("Teleport failed: " + reason);
return;
}
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Destination is running version {0}", version);
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 childRegions = new List(avatar.GetKnownRegionList());
// 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();
}
// Let's create an agent there if one doesn't exist yet.
bool logout = false;
if (!CreateAgent(sp, reg, finalDestination, agentCircuit, teleportFlags, out reason, out logout))
{
sp.ControllingClient.SendTeleportFailed(String.Format("Destination refused: {0}",
reason));
return;
}
// OK, it got this agent. Let's close some child agents
sp.CloseChildAgents(newRegionX, newRegionY);
IClientIPEndpoint ipepClient;
if (NeedsNewAgent(sp.DrawDistance, oldRegionX, newRegionX, oldRegionY, newRegionY))
{
//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 (eq != null)
{
eq.EnableSimulator(destinationHandle, endPoint, sp.UUID);
// ES makes the client send a UseCircuitCode message to the destination,
// which triggers a bunch of things there.
// So let's wait
Thread.Sleep(200);
eq.EstablishAgentCommunication(sp.UUID, endPoint, capsPath);
}
else
{
sp.ControllingClient.InformClientOfNeighbour(destinationHandle, endPoint);
}
}
else
{
agentCircuit.CapsPath = sp.Scene.CapsModule.GetChildSeed(sp.UUID, reg.RegionHandle);
capsPath = finalDestination.ServerURI + CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
}
SetInTransit(sp.UUID);
// Let's send a full update of the agent. This is a synchronous call.
AgentData agent = new AgentData();
sp.CopyTo(agent);
agent.Position = position;
SetCallbackURL(agent, sp.Scene.RegionInfo);
//sp.ControllingClient.SendTeleportProgress(teleportFlags, "Updating agent...");
if (!UpdateAgent(reg, finalDestination, agent))
{
// Region doesn't take it
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: UpdateAgent failed on teleport of {0} to {1}. Returning avatar to source region.",
sp.Name, finalDestination.RegionName);
Fail(sp, finalDestination);
return;
}
sp.ControllingClient.SendTeleportProgress(teleportFlags | (uint)TeleportFlags.DisableCancel, "sending_dest");
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: Sending new CAPS seed url {0} to client {1}", capsPath, sp.UUID);
if (eq != null)
{
eq.TeleportFinishEvent(destinationHandle, 13, endPoint,
0, teleportFlags, capsPath, sp.UUID);
}
else
{
sp.ControllingClient.SendRegionTeleport(destinationHandle, 13, endPoint, 4,
teleportFlags, capsPath);
}
// Let's set this to true tentatively. This does not trigger OnChildAgent
sp.IsChildAgent = true;
// 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 (!WaitForCallback(sp.UUID))
{
m_log.WarnFormat(
"[ENTITY TRANSFER MODULE]: Teleport of {0} to {1} failed due to no callback from destination region. Returning avatar to source region.",
sp.Name, finalDestination.RegionName);
Fail(sp, finalDestination);
return;
}
// 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();
sp.Scene.CleanDroppedAttachments();
// 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))
{
Thread.Sleep(5000);
sp.Close();
sp.Scene.IncomingCloseAgent(sp.UUID);
}
else
// now we have a child agent in this region.
sp.Reset();
// REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
if (sp.Scene.NeedSceneCacheClear(sp.UUID))
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: User {0} is going to another region, profile cache removed",
sp.UUID);
}
}
else
{
sp.ControllingClient.SendTeleportFailed("Remote Region appears to be down");
}
}
private void Fail(ScenePresence sp, GridRegion finalDestination)
{
// Client never contacted destination. Let's restore everything back
sp.ControllingClient.SendTeleportFailed("Problems connecting to destination.");
// Fail. Reset it back
sp.IsChildAgent = false;
ReInstantiateScripts(sp);
ResetFromTransit(sp.UUID);
EnableChildAgents(sp);
// Finally, kill the agent we just created at the destination.
m_aScene.SimulationService.CloseAgent(finalDestination, sp.UUID);
}
protected virtual bool CreateAgent(ScenePresence sp, GridRegion reg, GridRegion finalDestination, AgentCircuitData agentCircuit, uint teleportFlags, out string reason, out bool logout)
{
logout = false;
return m_aScene.SimulationService.CreateAgent(finalDestination, agentCircuit, teleportFlags, out reason);
}
protected virtual bool UpdateAgent(GridRegion reg, GridRegion finalDestination, AgentData agent)
{
return m_aScene.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 callback URL to {0}", agent.CallbackURI);
}
protected virtual void AgentHasMovedAway(ScenePresence sp, bool logout)
{
foreach (SceneObjectGroup sop in sp.Attachments)
{
sop.Scene.DeleteSceneObject(sop, true);
}
sp.Attachments.Clear();
}
protected void KillEntity(Scene scene, uint localID)
{
scene.SendKillObject(localID);
}
protected virtual GridRegion GetFinalDestination(GridRegion region)
{
return region;
}
protected virtual bool NeedsNewAgent(float drawdist, uint oldRegionX, uint newRegionX, uint oldRegionY, uint newRegionY)
{
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
///
/// Tries to teleport agent to landmark.
///
///
///
///
public virtual void RequestTeleportLandmark(IClientAPI remoteClient, AssetLandmark lm)
{
GridRegion info = m_aScene.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 TeleportHome(UUID id, IClientAPI client)
{
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Request to teleport {0} {1} home", client.FirstName, client.LastName);
//OpenSim.Services.Interfaces.PresenceInfo pinfo = m_aScene.PresenceService.GetAgent(client.SessionId);
GridUserInfo uinfo = m_aScene.GridUserService.GetGridUserInfo(client.AgentId.ToString());
if (uinfo != null)
{
GridRegion regionInfo = m_aScene.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;
}
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: User's home region is {0} {1} ({2}-{3})",
regionInfo.RegionName, regionInfo.RegionID, regionInfo.RegionLocX / Constants.RegionSize, regionInfo.RegionLocY / Constants.RegionSize);
// 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));
}
}
#endregion
#region Agent Crossings
public bool Cross(ScenePresence agent, bool isFlying)
{
Scene scene = agent.Scene;
Vector3 pos = agent.AbsolutePosition;
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 to edge that will trigger crossing
// 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.InTransit();
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);
InformClientToInitateTeleportToLocation(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.InTransit();
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);
InformClientToInitateTeleportToLocation(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.InTransit();
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);
InformClientToInitateTeleportToLocation(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.InTransit();
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);
InformClientToInitateTeleportToLocation(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 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();
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.InTransit();
CrossAgentToNewRegionDelegate d = CrossAgentToNewRegionAsync;
d.BeginInvoke(agent, newpos, neighbourx, neighboury, neighbourRegion, isFlying, version, CrossAgentToNewRegionCompleted, d);
return true;
}
public delegate void InformClientToInitateTeleportToLocationDelegate(ScenePresence agent, uint regionX, uint regionY,
Vector3 position,
Scene initiatingScene);
private void InformClientToInitateTeleportToLocation(ScenePresence agent, uint regionX, uint regionY, Vector3 position, Scene initiatingScene)
{
// This assumes that we know what our neighbours are.
InformClientToInitateTeleportToLocationDelegate 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);
IMessageTransferModule im = initiatingScene.RequestModuleInterface();
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]);
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)
{
InformClientToInitateTeleportToLocationDelegate icon =
(InformClientToInitateTeleportToLocationDelegate)iar.AsyncState;
icon.EndInvoke(iar);
}
public delegate ScenePresence CrossAgentToNewRegionDelegate(ScenePresence agent, Vector3 pos, uint neighbourx, uint neighboury, GridRegion neighbourRegion, bool isFlying, string version);
///
/// This Closes child agents on neighbouring regions
/// Calls an asynchronous method to do so.. so it doesn't lag the sim.
///
protected ScenePresence CrossAgentToNewRegionAsync(ScenePresence agent, Vector3 pos, uint neighbourx, uint neighboury, GridRegion neighbourRegion, bool isFlying, string version)
{
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 (neighbourRegion != null && agent.ValidateAttachments())
{
pos = pos + (agent.Velocity);
SetInTransit(agent.UUID);
AgentData cAgent = new AgentData();
agent.CopyTo(cAgent);
cAgent.Position = pos;
if (isFlying)
cAgent.ControlFlags |= (uint)AgentManager.ControlFlags.AGENT_CONTROL_FLY;
cAgent.CallbackURI = m_scene.RegionInfo.ServerURI +
"agent/" + agent.UUID.ToString() + "/" + m_scene.RegionInfo.RegionID.ToString() + "/release/";
if (!m_scene.SimulationService.UpdateAgent(neighbourRegion, cAgent))
{
// region doesn't take it
ReInstantiateScripts(agent);
ResetFromTransit(agent.UUID);
return agent;
}
// Next, let's close the child agent connections that are too far away.
agent.CloseChildAgents(neighbourx, neighboury);
//AgentCircuitData circuitdata = m_controllingClient.RequestClientInfo();
agent.ControllingClient.RequestClientInfo();
//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;
}
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);
IEventQueue eq = agent.Scene.RequestModuleInterface();
if (eq != null)
{
eq.CrossRegion(neighbourHandle, pos, agent.Velocity, neighbourRegion.ExternalEndPoint,
capsPath, agent.UUID, agent.ControllingClient.SessionId);
}
else
{
agent.ControllingClient.CrossRegion(neighbourHandle, pos, agent.Velocity, neighbourRegion.ExternalEndPoint,
capsPath);
}
if (!WaitForCallback(agent.UUID))
{
m_log.Debug("[ENTITY TRANSFER MODULE]: Callback never came in crossing agent");
ReInstantiateScripts(agent);
ResetFromTransit(agent.UUID);
// Yikes! We should just have a ref to scene here.
//agent.Scene.InformClientOfNeighbours(agent);
EnableChildAgents(agent);
return agent;
}
agent.MakeChildAgent();
// now we have a child agent in this region. Request all interesting data about other (root) agents
agent.SendOtherAgentsAvatarDataToMe();
agent.SendOtherAgentsAppearanceToMe();
// Backwards compatibility
if (version == "Unknown" || version == string.Empty)
{
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Old neighbor, passing attachments one by one...");
CrossAttachmentsIntoNewRegion(neighbourRegion, agent, true);
}
AgentHasMovedAway(agent, false);
// the user may change their profile information in other region,
// so the userinfo in UserProfileCache is not reliable any more, delete it
// REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
if (agent.Scene.NeedSceneCacheClear(agent.UUID))
{
m_log.DebugFormat(
"[ENTITY TRANSFER MODULE]: User {0} is going to another region", agent.UUID);
}
}
//m_log.Debug("AFTER CROSS");
//Scene.DumpChildrenSeeds(UUID);
//DumpKnownRegions();
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.NotInTransit();
//m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Crossing agent {0} {1} completed.", agent.Firstname, agent.Lastname);
}
#endregion
#region Enable Child Agent
///
/// This informs a single neighbouring region about agent "avatar".
/// Calls an asynchronous method to do so.. so it doesn't lag the sim.
///
///
///
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(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);
///
/// This informs all neighbouring regions about agent "avatar".
/// Calls an asynchronous method to do so.. so it doesn't lag the sim.
///
///
public void EnableChildAgents(ScenePresence sp)
{
List neighbours = new List();
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 neighbourHandles = NeighbourHandles(neighbours); // on this region
neighbourHandles.Add(sp.Scene.RegionInfo.RegionHandle); // add this region too
List previousRegionNeighbourHandles;
if (sp.Scene.CapsModule != null)
{
previousRegionNeighbourHandles =
new List(sp.Scene.CapsModule.GetChildrenSeeds(sp.UUID).Keys);
}
else
{
previousRegionNeighbourHandles = new List();
}
List newRegions = NewNeighbours(neighbourHandles, previousRegionNeighbourHandles);
List 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 seeds;
if (sp.Scene.CapsModule != null)
seeds
= new Dictionary(sp.Scene.CapsModule.GetChildrenSeeds(sp.UUID));
else
seeds = new Dictionary();
//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 cagents = new List();
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 = new Vector3(128, 128, 70);
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(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;
if (neighbour.RegionHandle != sp.Scene.RegionInfo.RegionHandle)
{
InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
try
{
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++;
}
}
private void InformClientOfNeighbourCompleted(IAsyncResult iar)
{
InformClientOfNeighbourDelegate icon = (InformClientOfNeighbourDelegate)iar.AsyncState;
icon.EndInvoke(iar);
//m_log.WarnFormat(" --> InformClientOfNeighbourCompleted");
}
///
/// Async component for informing client of which neighbours exist
///
///
/// This needs to run asynchronously, as a network timeout may block the thread for a long while
///
///
///
///
///
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 m_scene = sp.Scene;
uint x, y;
Utils.LongToUInts(reg.RegionHandle, out x, out y);
x = x / Constants.RegionSize;
y = y / Constants.RegionSize;
m_log.Debug("[ENTITY TRANSFER MODULE]: Starting to inform client about neighbour " + x + ", " + y + "(" + endPoint + ")");
string capsPath = reg.ServerURI + CapsUtil.GetCapsSeedPath(a.CapsPath);
string reason = String.Empty;
bool regionAccepted = m_scene.SimulationService.CreateAgent(reg, a, (uint)TeleportFlags.Default, out reason);
if (regionAccepted && newAgent)
{
IEventQueue eq = sp.Scene.RequestModuleInterface();
if (eq != 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}",
m_scene.RegionInfo.RegionName, sp.Name, reg.RegionName, reg.RegionHandle, capsPath);
eq.EnableSimulator(reg.RegionHandle, endPoint, sp.UUID);
eq.EstablishAgentCommunication(sp.UUID, endPoint, capsPath);
}
else
{
sp.ControllingClient.InformClientOfNeighbour(reg.RegionHandle, endPoint);
// TODO: make Event Queue disablable!
}
m_log.Debug("[ENTITY TRANSFER MODULE]: Completed inform client about neighbour " + endPoint.ToString());
}
if (!regionAccepted)
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Region {0} did not accept agent: {1}", reg.RegionName, reason);
}
///
/// Return the list of regions that are considered to be neighbours to the given scene.
///
///
///
///
///
protected List RequestNeighbours(ScenePresence avatar, uint pRegionLocX, uint pRegionLocY)
{
Scene pScene = avatar.Scene;
RegionInfo m_regionInfo = pScene.RegionInfo;
Border[] northBorders = pScene.NorthBorders.ToArray();
Border[] southBorders = pScene.SouthBorders.ToArray();
Border[] eastBorders = pScene.EastBorders.ToArray();
Border[] westBorders = pScene.WestBorders.ToArray();
// 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 (northBorders.Length <= 1 && southBorders.Length <= 1 && eastBorders.Length <= 1 && westBorders.Length <= 1)
{
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 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 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) + 1;
extent.Y = ((int)extent.Y / (int)Constants.RegionSize) + 1;
int startX = (int)(pRegionLocX - 1) * (int)Constants.RegionSize;
int startY = (int)(pRegionLocY - 1) * (int)Constants.RegionSize;
int endX = ((int)pRegionLocX + (int)extent.X) * (int)Constants.RegionSize;
int endY = ((int)pRegionLocY + (int)extent.Y) * (int)Constants.RegionSize;
List neighbours = pScene.GridService.GetRegionRange(m_regionInfo.ScopeID, startX, endX, startY, endY);
neighbours.RemoveAll(delegate(GridRegion r) { return r.RegionID == m_regionInfo.RegionID; });
return neighbours;
}
}
private List NewNeighbours(List currentNeighbours, List previousNeighbours)
{
return currentNeighbours.FindAll(delegate(ulong handle) { return !previousNeighbours.Contains(handle); });
}
// private List CommonNeighbours(List currentNeighbours, List previousNeighbours)
// {
// return currentNeighbours.FindAll(delegate(ulong handle) { return previousNeighbours.Contains(handle); });
// }
private List OldNeighbours(List currentNeighbours, List previousNeighbours)
{
return previousNeighbours.FindAll(delegate(ulong handle) { return !currentNeighbours.Contains(handle); });
}
private List NeighbourHandles(List neighbours)
{
List handles = new List();
foreach (GridRegion reg in neighbours)
{
handles.Add(reg.RegionHandle);
}
return handles;
}
// private void Dump(string msg, List 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_log.DebugFormat("[ENTITY TRANSFER MODULE]: Agent {0} released", id);
ResetFromTransit(id);
}
#endregion
#region Object Transfers
///
/// 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
///
/// the attempted out of region position of the scene object
/// the scene object that we're crossing
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;
grp.OffsetForNewRegion(pos);
// 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, grp, silent))
{
grp.OffsetForNewRegion(oldGroupPosition);
grp.ScheduleGroupForFullUpdate();
}
}
///
/// Move the given scene object into a new region
///
///
/// Scene Object Group that we're crossing
///
/// 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
///
protected bool CrossPrimGroupIntoNewRegion(GridRegion destination, SceneObjectGroup grp, bool silent)
{
//m_log.Debug(" >>> CrossPrimGroupIntoNewRegion <<<");
bool successYN = false;
grp.RootPart.UpdateFlag = 0;
//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 (m_aScene.SimulationService != null)
successYN = m_aScene.SimulationService.CreateObject(destination, 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)
{
if (grp.RootPart.PhysActor != null)
{
grp.RootPart.PhysActor.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;
}
protected bool CrossAttachmentsIntoNewRegion(GridRegion destination, ScenePresence sp, bool silent)
{
List m_attachments = sp.Attachments;
lock (m_attachments)
{
// Validate
foreach (SceneObjectGroup gobj in m_attachments)
{
if (gobj == null || gobj.IsDeleted)
return false;
}
foreach (SceneObjectGroup gobj in m_attachments)
{
// If the prim group is null then something must have happened to it!
if (gobj != null && gobj.RootPart != null)
{
// Set the parent localID to 0 so it transfers over properly.
gobj.RootPart.SetParentLocalId(0);
gobj.AbsolutePosition = gobj.RootPart.AttachedPos;
gobj.IsAttachment = false;
//gobj.RootPart.LastOwnerID = gobj.GetFromAssetID();
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Sending attachment {0} to region {1}", gobj.UUID, destination.RegionName);
CrossPrimGroupIntoNewRegion(destination, gobj, silent);
}
}
m_attachments.Clear();
return true;
}
}
#endregion
#region Misc
protected bool WaitForCallback(UUID id)
{
int count = 200;
while (m_agentsInTransit.Contains(id) && count-- > 0)
{
//m_log.Debug(" >>> Waiting... " + count);
Thread.Sleep(100);
}
if (count > 0)
return true;
else
return false;
}
protected void SetInTransit(UUID id)
{
lock (m_agentsInTransit)
{
if (!m_agentsInTransit.Contains(id))
m_agentsInTransit.Add(id);
}
}
protected bool ResetFromTransit(UUID id)
{
lock (m_agentsInTransit)
{
if (m_agentsInTransit.Contains(id))
{
m_agentsInTransit.Remove(id);
return true;
}
}
return false;
}
protected void ReInstantiateScripts(ScenePresence sp)
{
int i = 0;
if (sp.InTransitScriptStates.Count > 0)
{
sp.Attachments.ForEach(delegate(SceneObjectGroup sog)
{
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, sp.Attachments.Count);
});
sp.InTransitScriptStates.Clear();
}
}
#endregion
}
}