3 files changed, 29 insertions, 16 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 55c4fda..8bdf39a 100755
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -174,6 +174,13 @@ namespace OpenSim.Region.Framework.Scenes
 
         public SynchronizeSceneHandler SynchronizeScene;
 
+        public bool ClampNegativeZ
+        {
+            get { return m_clampNegativeZ; }
+        }
+
+        private bool m_clampNegativeZ = false;
+
         /// <summary>
         /// Used to prevent simultaneous calls to code that adds and removes agents.
         /// </summary>
@@ -524,11 +531,11 @@ namespace OpenSim.Region.Framework.Scenes
 //        private int m_lastUpdate;
         private bool m_firstHeartbeat = true;
         
-        private UpdatePrioritizationSchemes m_priorityScheme = UpdatePrioritizationSchemes.Time;
-        private bool m_reprioritizationEnabled = true;
-        private double m_reprioritizationInterval = 5000.0;
-        private double m_rootReprioritizationDistance = 10.0;
-        private double m_childReprioritizationDistance = 20.0;
+//        private UpdatePrioritizationSchemes m_priorityScheme = UpdatePrioritizationSchemes.Time;
+//        private bool m_reprioritizationEnabled = true;
+//        private double m_reprioritizationInterval = 5000.0;
+//        private double m_rootReprioritizationDistance = 10.0;
+//        private double m_childReprioritizationDistance = 20.0;
 
 
         private Timer m_mapGenerationTimer = new Timer();
@@ -1029,6 +1036,8 @@ namespace OpenSim.Region.Framework.Scenes
                     m_clampPrimSize = true;
                 }
 
+                m_clampNegativeZ = startupConfig.GetBoolean("ClampNegativeZ", m_clampNegativeZ);
+
                 m_useTrashOnDelete = startupConfig.GetBoolean("UseTrashOnDelete",m_useTrashOnDelete);
                 m_trustBinaries = startupConfig.GetBoolean("TrustBinaries", m_trustBinaries);
                 m_allowScriptCrossings = startupConfig.GetBoolean("AllowScriptCrossing", m_allowScriptCrossings);
@@ -1472,11 +1481,14 @@ namespace OpenSim.Region.Framework.Scenes
 
             m_log.InfoFormat("[SCENE]: Closing down the single simulator: {0}", RegionInfo.RegionName);
 
-            StatsReporter.Close();
 
+            StatsReporter.Close();
             m_restartTimer.Stop();
             m_restartTimer.Close();
 
+            if (!GridService.DeregisterRegion(RegionInfo.RegionID))
+                m_log.WarnFormat("[SCENE]: Deregister from grid failed for region {0}", Name);
+
             // Kick all ROOT agents with the message, 'The simulator is going down'
             ForEachScenePresence(delegate(ScenePresence avatar)
             {
@@ -1503,13 +1515,10 @@ namespace OpenSim.Region.Framework.Scenes
             EventManager.TriggerSceneShuttingDown(this);
 
             m_log.Debug("[SCENE]: Persisting changed objects");
+            Backup(true);
 
-            Backup(false);
             m_sceneGraph.Close();
 
-            if (!GridService.DeregisterRegion(RegionInfo.RegionID))
-                m_log.WarnFormat("[SCENE]: Deregister from grid failed for region {0}", Name);
-
             base.Close();
 
             // XEngine currently listens to the EventManager.OnShutdown event to trigger script stop and persistence.
@@ -1619,6 +1628,8 @@ namespace OpenSim.Region.Framework.Scenes
             Watchdog.GetCurrentThreadInfo().AlarmIfTimeout = true;
             m_lastFrameTick = Util.EnvironmentTickCount();
             Update(-1);
+
+            Watchdog.RemoveThread();
                 }
 
         private void Maintenance()
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index 9308500..2ecb55b 100755
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -296,13 +296,15 @@ namespace OpenSim.Region.Framework.Scenes
                 Vector3 npos = new Vector3(sceneObject.RootPart.GroupPosition.X,
                                            sceneObject.RootPart.GroupPosition.Y,
                                            sceneObject.RootPart.GroupPosition.Z);
-                if (!(((sceneObject.RootPart.Shape.PCode == (byte)PCode.Prim) && (sceneObject.RootPart.Shape.State != 0))) && (npos.X < 0.0 || npos.Y < 0.0 || npos.Z < 0.0 ||
+                bool clampZ = m_parentScene.ClampNegativeZ;
+
+                if (!(((sceneObject.RootPart.Shape.PCode == (byte)PCode.Prim) && (sceneObject.RootPart.Shape.State != 0))) && (npos.X < 0.0 || npos.Y < 0.0 || (npos.Z < 0.0 && clampZ) ||
                     npos.X > regionSizeX ||
                     npos.Y > regionSizeY))
                 {
                     if (npos.X < 0.0) npos.X = 1.0f;
                     if (npos.Y < 0.0) npos.Y = 1.0f;
-                    if (npos.Z < 0.0) npos.Z = 0.0f;
+                    if (npos.Z < 0.0 && clampZ) npos.Z = 0.0f;
                     if (npos.X > regionSizeX) npos.X = regionSizeX - 1.0f;
                     if (npos.Y > regionSizeY) npos.Y = regionSizeY - 1.0f;
 
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 5903274..0d2c8c3 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -4143,8 +4143,8 @@ namespace OpenSim.Region.Framework.Scenes
                             {
                                 byebyeRegions.Add(handle);
                                 // this should not be here
-                                if(eventQueue != null)
-                                    eventQueue.DisableSimulator(handle,UUID);
+//                                if(eventQueue != null)
+///                                    eventQueue.DisableSimulator(handle,UUID);
                             }
                         }
                         else
@@ -4154,8 +4154,8 @@ namespace OpenSim.Region.Framework.Scenes
                             {
                                 byebyeRegions.Add(handle);
                                 // this should not be here
-                                if(eventQueue != null)
-                                    eventQueue.DisableSimulator(handle,UUID);
+//                                if(eventQueue != null)
+//                                    eventQueue.DisableSimulator(handle,UUID);
                             }
                         }
                     }