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using System;
using System.Collections.Generic;
using System.Net;
using System.Text;
using libsecondlife;
using OpenSim.Framework;
using OpenSim.Framework.Console;
using OpenSim.Framework.Communications;
namespace OpenSim.Region.Environment.Scenes
{
public class SceneCommunicationService //one instance per region
{
protected CommunicationsManager m_commsProvider;
protected RegionInfo m_regionInfo;
protected RegionCommsListener regionCommsHost;
public event AgentCrossing OnAvatarCrossingIntoRegion;
public event ExpectUserDelegate OnExpectUser;
public event CloseAgentConnection OnCloseAgentConnection;
public SceneCommunicationService(CommunicationsManager commsMan)
{
m_commsProvider = commsMan;
}
public void RegisterRegion(RegionInfo regionInfos)
{
m_regionInfo = regionInfos;
regionCommsHost = m_commsProvider.GridService.RegisterRegion(m_regionInfo);
if (regionCommsHost != null)
{
regionCommsHost.OnExpectUser += NewUserConnection;
regionCommsHost.OnAvatarCrossingIntoRegion += AgentCrossing;
regionCommsHost.OnCloseAgentConnection += CloseConnection;
}
}
public void Close()
{
regionCommsHost.OnExpectUser -= NewUserConnection;
regionCommsHost.OnAvatarCrossingIntoRegion -= AgentCrossing;
regionCommsHost.OnCloseAgentConnection -= CloseConnection;
//regionCommsHost.RemoveRegion(m_regionInfo); //TODO add to method to commsManager
regionCommsHost = null;
}
#region CommsManager Event handlers
/// <summary>
///
/// </summary>
/// <param name="regionHandle"></param>
/// <param name="agent"></param>
protected void NewUserConnection(ulong regionHandle, AgentCircuitData agent)
{
if (OnExpectUser != null)
{
OnExpectUser(regionHandle, agent);
}
}
protected void AgentCrossing(ulong regionHandle, LLUUID agentID, LLVector3 position, bool isFlying)
{
if (OnAvatarCrossingIntoRegion != null)
{
OnAvatarCrossingIntoRegion(regionHandle, agentID, position, isFlying);
}
}
protected void CloseConnection(ulong regionHandle, LLUUID agentID)
{
if (OnCloseAgentConnection != null)
{
OnCloseAgentConnection(regionHandle, agentID);
}
}
#endregion
#region Inform Client of Neighbours
private delegate void InformClientOfNeighbourDelegate(
ScenePresence avatar, AgentCircuitData a, ulong regionHandle, IPEndPoint endPoint);
private void InformClientOfNeighbourCompleted(IAsyncResult iar)
{
InformClientOfNeighbourDelegate icon = (InformClientOfNeighbourDelegate)iar.AsyncState;
icon.EndInvoke(iar);
}
/// <summary>
/// Async compnent for informing client of which neighbours exists
/// </summary>
/// <remarks>
/// This needs to run asynchronesously, 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 avatar, AgentCircuitData a, ulong regionHandle,
IPEndPoint endPoint)
{
MainLog.Instance.Notice("INTERGRID", "Starting to inform client about neighbours");
bool regionAccepted = m_commsProvider.InterRegion.InformRegionOfChildAgent(regionHandle, a);
if (regionAccepted)
{
avatar.ControllingClient.InformClientOfNeighbour(regionHandle, endPoint);
avatar.AddNeighbourRegion(regionHandle);
MainLog.Instance.Notice("INTERGRID", "Completed inform client about neighbours");
}
}
/// <summary>
///
/// </summary>
public void EnableNeighbourChildAgents(ScenePresence avatar)
{
List<SimpleRegionInfo> neighbours =
m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
if (neighbours != null)
{
for (int i = 0; i < neighbours.Count; i++)
{
AgentCircuitData agent = avatar.ControllingClient.RequestClientInfo();
agent.BaseFolder = LLUUID.Zero;
agent.InventoryFolder = LLUUID.Zero;
agent.startpos = new LLVector3(128, 128, 70);
agent.child = true;
InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
d.BeginInvoke(avatar, agent, neighbours[i].RegionHandle, neighbours[i].ExternalEndPoint,
InformClientOfNeighbourCompleted,
d);
}
}
}
#endregion
/// <summary>
///
/// </summary>
/// <param name="regionHandle"></param>
/// <returns></returns>
public virtual RegionInfo RequestNeighbouringRegionInfo(ulong regionHandle)
{
return m_commsProvider.GridService.RequestNeighbourInfo(regionHandle);
}
/// <summary>
///
/// </summary>
/// <param name="minX"></param>
/// <param name="minY"></param>
/// <param name="maxX"></param>
/// <param name="maxY"></param>
public virtual void RequestMapBlocks(IClientAPI remoteClient, int minX, int minY, int maxX, int maxY)
{
List<MapBlockData> mapBlocks;
mapBlocks = m_commsProvider.GridService.RequestNeighbourMapBlocks(minX, minY, maxX, maxY);
remoteClient.SendMapBlock(mapBlocks);
}
/// <summary>
///
/// </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, LLVector3 position,
LLVector3 lookAt, uint flags)
{
if (regionHandle == m_regionInfo.RegionHandle)
{
avatar.ControllingClient.SendTeleportLocationStart();
avatar.ControllingClient.SendLocalTeleport(position, lookAt, flags);
avatar.Teleport(position);
}
else
{
RegionInfo reg = RequestNeighbouringRegionInfo(regionHandle);
if (reg != null)
{
avatar.ControllingClient.SendTeleportLocationStart();
AgentCircuitData agent = avatar.ControllingClient.RequestClientInfo();
agent.BaseFolder = LLUUID.Zero;
agent.InventoryFolder = LLUUID.Zero;
agent.startpos = position;
agent.child = true;
avatar.Close();
m_commsProvider.InterRegion.InformRegionOfChildAgent(regionHandle, agent);
m_commsProvider.InterRegion.ExpectAvatarCrossing(regionHandle, avatar.ControllingClient.AgentId, position, false);
AgentCircuitData circuitdata = avatar.ControllingClient.RequestClientInfo();
string capsPath = Util.GetCapsURL(avatar.ControllingClient.AgentId);
avatar.ControllingClient.SendRegionTeleport(regionHandle, 13, reg.ExternalEndPoint, 4, (1 << 4), capsPath);
avatar.MakeChildAgent();
uint newRegionX = (uint)(regionHandle >> 40);
uint newRegionY = (((uint)(regionHandle)) >> 8);
uint oldRegionX = (uint)(m_regionInfo.RegionHandle >> 40);
uint oldRegionY = (((uint)(m_regionInfo.RegionHandle)) >> 8);
if (Util.fast_distance2d((int)(newRegionX - oldRegionX), (int)(newRegionY - oldRegionY)) > 3)
{
CloseChildAgentConnections(avatar);
}
}
}
}
/// <summary>
///
/// </summary>
/// <param name="regionhandle"></param>
/// <param name="agentID"></param>
/// <param name="position"></param>
public bool CrossToNeighbouringRegion(ulong regionhandle, LLUUID agentID, LLVector3 position, bool isFlying)
{
return m_commsProvider.InterRegion.ExpectAvatarCrossing(regionhandle, agentID, position, isFlying);
}
public void CloseChildAgentConnections(ScenePresence presence)
{
foreach (ulong regionHandle in presence.KnownChildRegions)
{
m_commsProvider.InterRegion.TellRegionToCloseChildConnection(regionHandle, presence.ControllingClient.AgentId);
presence.RemoveNeighbourRegion(regionHandle);
}
}
}
}
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