1 files changed, 20 insertions, 3 deletions

diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 25a53b4..7f07d73 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1844,8 +1844,16 @@ namespace OpenSim.Region.Framework.Scenes
 //                "[SCENE PRESENCE]: Avatar {0} received request to move to position {1} in {2}",
 //                Name, pos, m_scene.RegionInfo.RegionName);
 
-            if (pos.X < 0 || pos.X >= Constants.RegionSize
-                || pos.Y < 0 || pos.Y >= Constants.RegionSize
+            // Allow move to another sub-region within a megaregion
+            Vector2 regionSize;
+            IRegionCombinerModule regionCombinerModule = m_scene.RequestModuleInterface<IRegionCombinerModule>();
+            if (regionCombinerModule != null)
+                regionSize = regionCombinerModule.GetSizeOfMegaregion(m_scene.RegionInfo.RegionID);
+            else
+                regionSize = new Vector2(Constants.RegionSize);
+
+            if (pos.X < 0 || pos.X >= regionSize.X
+                || pos.Y < 0 || pos.Y >= regionSize.Y
                 || pos.Z < 0)
                 return;
 
@@ -1859,7 +1867,16 @@ namespace OpenSim.Region.Framework.Scenes
 //                pos.Z = AbsolutePosition.Z;
 //            }
 
-            float terrainHeight = (float)m_scene.Heightmap[(int)pos.X, (int)pos.Y];
+            // Get terrain height for sub-region in a megaregion if necessary
+            int X = (int)((m_scene.RegionInfo.RegionLocX * Constants.RegionSize) + pos.X);
+            int Y = (int)((m_scene.RegionInfo.RegionLocY * Constants.RegionSize) + pos.Y);
+            UUID target_regionID = m_scene.GridService.GetRegionByPosition(m_scene.RegionInfo.ScopeID, X, Y).RegionID;
+            Scene targetScene = m_scene;
+
+            if (!SceneManager.Instance.TryGetScene(target_regionID, out targetScene))
+                targetScene = m_scene;
+
+            float terrainHeight = (float)targetScene.Heightmap[(int)(pos.X % Constants.RegionSize), (int)(pos.Y % Constants.RegionSize)];
             pos.Z = Math.Max(terrainHeight, pos.Z);
 
             // Fudge factor.  It appears that if one clicks "go here" on a piece of ground, the go here request is