From 326c3ee14fb294796ff3b908f17da1021d321e3b Mon Sep 17 00:00:00 2001
From: "Teravus Ovares (Dan Olivares)" <teravus@gmail.com>
Date: Mon, 7 Sep 2009 12:57:30 -0400
Subject: [PATCH] * Enables Child Agents for all virtual regions in the region
 and their neighbors.   There still may be issues with crossing into the
 mentioned neighbors of the virtual regions.   This makes regions larger then
 512x512 (3 virtual regions) display fully to clients. * Uses a grid request
 multiple times, so the more regions are in the instance, the longer logging
 in takes.   Consider this temporary until there's a RegionInfo request
 similar to the MapItem Request.

---
 .../Scenes/SceneCommunicationService.cs       | 58 ++++++++++++++++++-
 1 file changed, 56 insertions(+), 2 deletions(-)

diff --git a/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs b/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
index 08563d0071..0827672ec7 100644
--- a/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
@@ -367,6 +367,7 @@ namespace OpenSim.Region.Framework.Scenes
             string reason = String.Empty;
 
             //bool regionAccepted = m_commsProvider.InterRegion.InformRegionOfChildAgent(reg.RegionHandle, a);
+            
             bool regionAccepted = m_interregionCommsOut.SendCreateChildAgent(reg.RegionHandle, a, out reason);
 
             if (regionAccepted && newAgent)
@@ -384,7 +385,7 @@ namespace OpenSim.Region.Framework.Scenes
 
                     eq.EnableSimulator(reg.RegionHandle, endPoint, avatar.UUID);
                     eq.EstablishAgentCommunication(avatar.UUID, endPoint, capsPath);
-                    m_log.DebugFormat("[CAPS]: Sending new CAPS seed url {0} to client {1} in region {2}", 
+                    m_log.DebugFormat("[CAPS]: Sending new CAPS seed url {0} to client {1} in region {2}",
                                       capsPath, avatar.UUID, avatar.Scene.RegionInfo.RegionName);
                 }
                 else
@@ -394,7 +395,9 @@ namespace OpenSim.Region.Framework.Scenes
                 }
 
                 m_log.Info("[INTERGRID]: Completed inform client about neighbour " + endPoint.ToString());
+                
             }
+            
         }
 
         public void RequestNeighbors(RegionInfo region)
@@ -421,7 +424,48 @@ namespace OpenSim.Region.Framework.Scenes
             }
             else
             {
-                return m_commsProvider.GridService.RequestNeighbours(pRegionLocX, pRegionLocY);
+                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;
+                }
+
+                List<SimpleRegionInfo> neighbourList = new List<SimpleRegionInfo>();
+
+                // 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 startY = (int) pRegionLocY - 1;
+
+                int endX = (int) pRegionLocX + (int)extent.X + 1;
+                int endY = (int) pRegionLocY + (int)extent.Y + 1;
+
+                for (int i=startX;i<endX;i++)
+                {
+                    for (int j=startY;j<endY;j++)
+                    {
+                        // Skip CurrentRegion
+                        if (i == (int)pRegionLocX && j == (int)pRegionLocY)
+                            continue;
+
+                        ulong regionHandle = Util.UIntsToLong((uint)(i * Constants.RegionSize),
+                                                              (uint)(j * Constants.RegionSize));
+                        RegionInfo neighborreg = m_commsProvider.GridService.RequestNeighbourInfo(regionHandle);
+                        if (neighborreg != null)
+                        {
+                            neighbourList.Add(neighborreg);
+                        }
+                    }
+                }
+                return neighbourList;
+                //SimpleRegionInfo regionData = m_commsProvider.GridService.RequestNeighbourInfo()
+                //return m_commsProvider.GridService.RequestNeighbours(pRegionLocX, pRegionLocY);
             }
         }
 
@@ -554,6 +598,16 @@ namespace OpenSim.Region.Framework.Scenes
                                       InformClientOfNeighbourCompleted,
                                       d);
                     }
+                    
+                    catch (ArgumentOutOfRangeException)
+                    {
+                        m_log.ErrorFormat(
+                           "[REGIONINFO]: Neighbour Regions response included the current region in the neighbor 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(