/// <summary>
/// Try to teleport an agent to a new region.
/// </summary>
/// <param name="remoteClient"></param>
/// <param name="RegionHandle"></param>
/// <param name="position"></param>
/// <param name="lookAt"></param>
/// <param name="flags"></param>
public virtual void RequestTeleportToLocation(ScenePresence avatar, ulong regionHandle, Vector3 position,
Vector3 lookAt, uint teleportFlags)
{
if (!avatar.Scene.Permissions.CanTeleport(avatar.UUID))
return;
bool destRegionUp = true;
IEventQueue eq = avatar.Scene.RequestModuleInterface<IEventQueue>();
// Reset animations; the viewer does that in teleports.
avatar.ResetAnimations();
if (regionHandle == m_regionInfo.RegionHandle)
{
m_log.DebugFormat(
"[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation {0} within {1}",
position, m_regionInfo.RegionName);
// Teleport within the same region
if (IsOutsideRegion(avatar.Scene, position) || position.Z < 0)
{
Vector3 emergencyPos = new Vector3(128, 128, 128);
m_log.WarnFormat(
"[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation() was given an illegal position of {0} for avatar {1}, {2}. Substituting {3}",
position, avatar.Name, avatar.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) avatar.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;
}
// Only send this if the event queue is null
if (eq == null)
avatar.ControllingClient.SendTeleportLocationStart();
avatar.ControllingClient.SendLocalTeleport(position, lookAt, teleportFlags);
avatar.Teleport(position);
}
else
{
RegionInfo reg = RequestNeighbouringRegionInfo(regionHandle);
if (reg != null)
{
m_log.DebugFormat(
"[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation to {0} in {1}",
position, reg.RegionName);
if (eq == null)
avatar.ControllingClient.SendTeleportLocationStart();
// 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 = reg.ExternalEndPoint;
if (endPoint.Address == null)
{
// Couldn't resolve the name. Can't TP, because the viewer wants IP addresses.
destRegionUp = false;
}
if (destRegionUp)
{
uint newRegionX = (uint)(reg.RegionHandle >> 40);
uint newRegionY = (((uint)(reg.RegionHandle)) >> 8);
uint oldRegionX = (uint)(m_regionInfo.RegionHandle >> 40);
uint oldRegionY = (((uint)(m_regionInfo.RegionHandle)) >> 8);
// Fixing a bug where teleporting while sitting results in the avatar ending up removed from
// both regions
if (avatar.ParentID != (uint)0)
avatar.StandUp();
if (!avatar.ValidateAttachments())
{
avatar.ControllingClient.SendTeleportFailed("Inconsistent attachment state");
return;
}
// 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 = new List<ulong>(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 agentCircuit = avatar.ControllingClient.RequestClientInfo();
agentCircuit.BaseFolder = UUID.Zero;
agentCircuit.InventoryFolder = UUID.Zero;
agentCircuit.startpos = position;
agentCircuit.child = true;
if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
{
// brand new agent, let's create a new caps seed
agentCircuit.CapsPath = CapsUtil.GetRandomCapsObjectPath();
}
string reason = String.Empty;
// Let's create an agent there if one doesn't exist yet.
//if (!m_commsProvider.InterRegion.InformRegionOfChildAgent(reg.RegionHandle, agentCircuit))
if (!m_interregionCommsOut.SendCreateChildAgent(reg.RegionHandle, agentCircuit, out reason))
{
avatar.ControllingClient.SendTeleportFailed(String.Format("Destination is not accepting teleports: {0}",
reason));
return;
}
// OK, it got this agent. Let's close some child agents
avatar.CloseChildAgents(newRegionX, newRegionY);
if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
{
#region IP Translation for NAT
IClientIPEndpoint ipepClient;
if (avatar.ClientView.TryGet(out ipepClient))
{
capsPath
= "http://"
+ NetworkUtil.GetHostFor(ipepClient.EndPoint, reg.ExternalHostName)
+ ":"
+ reg.HttpPort
+ CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
}
else
{
capsPath
= "http://"
+ reg.ExternalHostName
+ ":"
+ reg.HttpPort
+ CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
}
#endregion
if (eq != null)
{
#region IP Translation for NAT
// Uses ipepClient above
if (avatar.ClientView.TryGet(out ipepClient))
{
endPoint.Address = NetworkUtil.GetIPFor(ipepClient.EndPoint, endPoint.Address);
}
#endregion
eq.EnableSimulator(reg.RegionHandle, endPoint, avatar.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(2000);
eq.EstablishAgentCommunication(avatar.UUID, endPoint, capsPath);
}
else
{
avatar.ControllingClient.InformClientOfNeighbour(reg.RegionHandle, endPoint);
}
}
else
{
agentCircuit.CapsPath = avatar.Scene.CapsModule.GetChildSeed(avatar.UUID, reg.RegionHandle);
capsPath = "http://" + reg.ExternalHostName + ":" + reg.HttpPort
+ "/CAPS/" + agentCircuit.CapsPath + "0000/";
}
// Expect avatar crossing is a heavy-duty function at the destination.
// That is where MakeRoot is called, which fetches appearance and inventory.
// Plus triggers OnMakeRoot, which spawns a series of asynchronous updates.
//m_commsProvider.InterRegion.ExpectAvatarCrossing(reg.RegionHandle, avatar.ControllingClient.AgentId,
// position, false);
//{
// avatar.ControllingClient.SendTeleportFailed("Problem with destination.");
// // We should close that agent we just created over at destination...
// List<ulong> lst = new List<ulong>();
// lst.Add(reg.RegionHandle);
// SendCloseChildAgentAsync(avatar.UUID, lst);
// return;
//}
SetInTransit(avatar.UUID);
// Let's send a full update of the agent. This is a synchronous call.
AgentData agent = new AgentData();
avatar.CopyTo(agent);
agent.Position = position;
agent.CallbackURI = "http://" + m_regionInfo.ExternalHostName + ":" + m_regionInfo.HttpPort +
"/agent/" + avatar.UUID.ToString() + "/" + avatar.Scene.RegionInfo.RegionHandle.ToString() + "/release/";
m_interregionCommsOut.SendChildAgentUpdate(reg.RegionHandle, agent);
m_log.DebugFormat(
"[CAPS]: Sending new CAPS seed url {0} to client {1}", capsPath, avatar.UUID);
if (eq != null)
{
eq.TeleportFinishEvent(reg.RegionHandle, 13, endPoint,
4, teleportFlags, capsPath, avatar.UUID);
}
else
{
avatar.ControllingClient.SendRegionTeleport(reg.RegionHandle, 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 send the attachments and close things here.
if (!WaitForCallback(avatar.UUID))
{
// Client never contacted destination. Let's restore everything back
avatar.ControllingClient.SendTeleportFailed("Problems connecting to destination.");
ResetFromTransit(avatar.UUID);
// Yikes! We should just have a ref to scene here.
avatar.Scene.InformClientOfNeighbours(avatar);
// Finally, kill the agent we just created at the destination.
m_interregionCommsOut.SendCloseAgent(reg.RegionHandle, avatar.UUID);
return;
}
// Can't go back from here
if (KiPrimitive != null)
{
KiPrimitive(avatar.LocalId);
}
avatar.MakeChildAgent();
// CrossAttachmentsIntoNewRegion is a synchronous call. We shouldn't need to wait after it
avatar.CrossAttachmentsIntoNewRegion(reg.RegionHandle, true);
// Finally, let's close this previously-known-as-root agent, when the jump is outside the view zone
if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
{
Thread.Sleep(5000);
avatar.Close();
CloseConnection(avatar.UUID);
}
else
// now we have a child agent in this region.
avatar.Reset();
// if (teleport success) // seems to be always success here
// the user may change their profile information in other region,
// so the userinfo in UserProfileCache is not reliable any more, delete it
if (avatar.Scene.NeedSceneCacheClear(avatar.UUID))
{
m_commsProvider.UserProfileCacheService.RemoveUser(avatar.UUID);
m_log.DebugFormat(
"[SCENE COMMUNICATION SERVICE]: User {0} is going to another region, profile cache removed",
avatar.UUID);
}
}
else
{
avatar.ControllingClient.SendTeleportFailed("Remote Region appears to be down");
}
}
else
{
// TP to a place that doesn't exist (anymore)
// Inform the viewer about that
avatar.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);
avatar.ControllingClient.SendMapBlock(blocks, 0);
}
}
}
