1 files changed, 230 insertions, 38 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 3dd0f3a..5428e5d 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -102,6 +102,7 @@ namespace OpenSim.Region.Framework.Scenes
         protected ModuleLoader m_moduleLoader;
         protected AgentCircuitManager m_authenticateHandler;
         protected SceneCommunicationService m_sceneGridService;
+        protected ISnmpModule m_snmpService = null;
 
         protected ISimulationDataService m_SimulationDataService;
         protected IEstateDataService m_EstateDataService;
@@ -163,6 +164,7 @@ namespace OpenSim.Region.Framework.Scenes
         private int landMS;
         private int lastCompletedFrame;
 
+        public bool CombineRegions = false;
         private bool m_physics_enabled = true;
         private bool m_scripts_enabled = true;
         private string m_defaultScriptEngine;
@@ -174,6 +176,7 @@ namespace OpenSim.Region.Framework.Scenes
         private bool m_firstHeartbeat = true;
 
         private object m_deleting_scene_object = new object();
+        private object m_cleaningAttachments = new object();
 
         private UpdatePrioritizationSchemes m_priorityScheme = UpdatePrioritizationSchemes.Time;
         private bool m_reprioritizationEnabled = true;
@@ -217,6 +220,19 @@ namespace OpenSim.Region.Framework.Scenes
             get { return m_sceneGridService; }
         }
 
+        public ISnmpModule SnmpService
+        {
+            get
+            {
+                if (m_snmpService == null)
+                {
+                    m_snmpService = RequestModuleInterface<ISnmpModule>();
+                }
+
+                return m_snmpService;
+            }
+        }
+
         public ISimulationDataService SimulationDataService
         {
             get
@@ -561,6 +577,8 @@ namespace OpenSim.Region.Framework.Scenes
             #region Region Settings
 
             // Load region settings
+            m_regInfo.WindlightSettings = SimulationDataService.LoadRegionWindlightSettings(m_regInfo.RegionID);
+
             m_regInfo.RegionSettings = simDataService.LoadRegionSettings(m_regInfo.RegionID);
             if (estateDataService != null)
                 m_regInfo.EstateSettings = estateDataService.LoadEstateSettings(m_regInfo.RegionID, false);
@@ -620,9 +638,10 @@ namespace OpenSim.Region.Framework.Scenes
                 //Animation states
                 m_useFlySlow = startupConfig.GetBoolean("enableflyslow", false);
                 // TODO: Change default to true once the feature is supported
-                m_usePreJump = startupConfig.GetBoolean("enableprejump", false);
-
+                m_usePreJump = startupConfig.GetBoolean("enableprejump", true);
                 m_maxNonphys = startupConfig.GetFloat("NonPhysicalPrimMax", m_maxNonphys);
+
+                m_log.DebugFormat("[SCENE]: prejump is {0}", m_usePreJump ? "ON" : "OFF");
                 if (RegionInfo.NonphysPrimMax > 0)
                 {
                     m_maxNonphys = RegionInfo.NonphysPrimMax;
@@ -654,6 +673,7 @@ namespace OpenSim.Region.Framework.Scenes
                 m_persistAfter *= 10000000;
 
                 m_defaultScriptEngine = startupConfig.GetString("DefaultScriptEngine", "XEngine");
+                m_log.InfoFormat("[SCENE]: Default script engine {0}", m_defaultScriptEngine);
 
                 IConfig packetConfig = m_config.Configs["PacketPool"];
                 if (packetConfig != null)
@@ -663,6 +683,7 @@ namespace OpenSim.Region.Framework.Scenes
                 }
 
                 m_strictAccessControl = startupConfig.GetBoolean("StrictAccessControl", m_strictAccessControl);
+                CombineRegions = startupConfig.GetBoolean("CombineContiguousRegions", false);
 
                 m_generateMaptiles = startupConfig.GetBoolean("GenerateMaptiles", true);
                 if (m_generateMaptiles)
@@ -687,9 +708,9 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
             }
-            catch
+            catch (Exception e)
             {
-                m_log.Warn("[SCENE]: Failed to load StartupConfig");
+                m_log.Error("[SCENE]: Failed to load StartupConfig: " + e.ToString());
             }
 
             #endregion Region Config
@@ -926,6 +947,15 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="seconds">float indicating duration before restart.</param>
         public virtual void Restart(float seconds)
         {
+            Restart(seconds, true);
+        }
+
+        /// <summary>
+        /// Given float seconds, this will restart the region. showDialog will optionally alert the users.
+        /// </summary>
+        /// <param name="seconds">float indicating duration before restart.</param>
+        public virtual void Restart(float seconds, bool showDialog)
+        {
             // notifications are done in 15 second increments
             // so ..   if the number of seconds is less then 15 seconds, it's not really a restart request
             // It's a 'Cancel restart' request.
@@ -946,8 +976,11 @@ namespace OpenSim.Region.Framework.Scenes
                 m_restartTimer.Elapsed += new ElapsedEventHandler(RestartTimer_Elapsed);
                 m_log.Info("[REGION]: Restarting Region in " + (seconds / 60) + " minutes");
                 m_restartTimer.Start();
-                m_dialogModule.SendNotificationToUsersInRegion(
+                if (showDialog)
+                {
+                    m_dialogModule.SendNotificationToUsersInRegion(
                     UUID.Random(), String.Empty, RegionInfo.RegionName + String.Format(": Restarting in {0} Minutes", (int)(seconds / 60.0)));
+                }
             }
         }
 
@@ -1143,6 +1176,7 @@ namespace OpenSim.Region.Framework.Scenes
             //m_heartbeatTimer.Elapsed += new ElapsedEventHandler(Heartbeat);
             if (HeartbeatThread != null)
             {
+                m_log.ErrorFormat("[SCENE]: Restarting heartbeat thread because it hasn't reported in in region {0}", RegionInfo.RegionName);
                 HeartbeatThread.Abort();
                 HeartbeatThread = null;
             }
@@ -1814,14 +1848,24 @@ namespace OpenSim.Region.Framework.Scenes
         /// <returns></returns>
         public Vector3 GetNewRezLocation(Vector3 RayStart, Vector3 RayEnd, UUID RayTargetID, Quaternion rot, byte bypassRayCast, byte RayEndIsIntersection, bool frontFacesOnly, Vector3 scale, bool FaceCenter)
         {
+        
+            float wheight = (float)RegionInfo.RegionSettings.WaterHeight;
+            Vector3 wpos = Vector3.Zero;
+            // Check for water surface intersection from above
+            if ( (RayStart.Z > wheight) && (RayEnd.Z < wheight) )
+            {
+                float ratio = (RayStart.Z - wheight) / (RayStart.Z - RayEnd.Z);
+                wpos.X = RayStart.X - (ratio * (RayStart.X - RayEnd.X));
+                wpos.Y = RayStart.Y - (ratio * (RayStart.Y - RayEnd.Y));
+                wpos.Z = wheight;
+            }                
+        
             Vector3 pos = Vector3.Zero;
             if (RayEndIsIntersection == (byte)1)
             {
                 pos = RayEnd;
-                return pos;
             }
-
-            if (RayTargetID != UUID.Zero)
+            else if (RayTargetID != UUID.Zero)
             {
                 SceneObjectPart target = GetSceneObjectPart(RayTargetID);
 
@@ -1843,7 +1887,7 @@ namespace OpenSim.Region.Framework.Scenes
                     EntityIntersection ei = target.TestIntersectionOBB(NewRay, Quaternion.Identity, frontFacesOnly, FaceCenter);
 
                     // Un-comment out the following line to Get Raytrace results printed to the console.
-                   // m_log.Info("[RAYTRACERESULTS]: Hit:" + ei.HitTF.ToString() + " Point: " + ei.ipoint.ToString() + " Normal: " + ei.normal.ToString());
+                    // m_log.Info("[RAYTRACERESULTS]: Hit:" + ei.HitTF.ToString() + " Point: " + ei.ipoint.ToString() + " Normal: " + ei.normal.ToString());
                     float ScaleOffset = 0.5f;
 
                     // If we hit something
@@ -1866,13 +1910,10 @@ namespace OpenSim.Region.Framework.Scenes
                         //pos.Z -= 0.25F; 
                        
                     }
-
-                    return pos;
                 }
                 else
                 {
                     // We don't have a target here, so we're going to raytrace all the objects in the scene.
-
                     EntityIntersection ei = m_sceneGraph.GetClosestIntersectingPrim(new Ray(AXOrigin, AXdirection), true, false);
 
                     // Un-comment the following line to print the raytrace results to the console.
@@ -1881,13 +1922,12 @@ namespace OpenSim.Region.Framework.Scenes
                     if (ei.HitTF)
                     {
                         pos = new Vector3(ei.ipoint.X, ei.ipoint.Y, ei.ipoint.Z);
-                    } else
+                    } 
+                    else
                     {
                         // fall back to our stupid functionality
                         pos = RayEnd;
                     }
-
-                    return pos;
                 }
             }
             else
@@ -1898,8 +1938,12 @@ namespace OpenSim.Region.Framework.Scenes
                 //increase height so its above the ground.
                 //should be getting the normal of the ground at the rez point and using that?
                 pos.Z += scale.Z / 2f;
-                return pos;
+//                return pos;
             }
+            
+            // check against posible water intercept
+            if (wpos.Z > pos.Z) pos = wpos;
+            return pos;
         }
 
 
@@ -1979,7 +2023,10 @@ namespace OpenSim.Region.Framework.Scenes
         public bool AddRestoredSceneObject(
             SceneObjectGroup sceneObject, bool attachToBackup, bool alreadyPersisted, bool sendClientUpdates)
         {
-            return m_sceneGraph.AddRestoredSceneObject(sceneObject, attachToBackup, alreadyPersisted, sendClientUpdates);
+            bool result =  m_sceneGraph.AddRestoredSceneObject(sceneObject, attachToBackup, alreadyPersisted, sendClientUpdates);
+            if (result)
+                sceneObject.IsDeleted = false;
+            return result;
         }
         
         /// <summary>
@@ -2056,6 +2103,15 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void DeleteAllSceneObjects()
         {
+            DeleteAllSceneObjects(false);
+        }
+
+        /// <summary>
+        /// Delete every object from the scene.  This does not include attachments worn by avatars.
+        /// </summary>
+        public void DeleteAllSceneObjects(bool exceptNoCopy)
+        {
+            List<SceneObjectGroup> toReturn = new List<SceneObjectGroup>();
             lock (Entities)
             {
                 EntityBase[] entities = Entities.GetEntities();
@@ -2064,11 +2120,24 @@ namespace OpenSim.Region.Framework.Scenes
                     if (e is SceneObjectGroup)
                     {
                         SceneObjectGroup sog = (SceneObjectGroup)e;
-                        if (!sog.IsAttachment)
-                            DeleteSceneObject((SceneObjectGroup)e, false);
+                        if (sog != null && !sog.IsAttachment)
+                        {
+                            if (!exceptNoCopy || ((sog.GetEffectivePermissions() & (uint)PermissionMask.Copy) != 0))
+                            {
+                                DeleteSceneObject((SceneObjectGroup)e, false);
+                            }
+                            else
+                            {
+                                toReturn.Add((SceneObjectGroup)e);   
+                            }
+                        }
                     }
                 }
             }
+            if (toReturn.Count > 0)
+            {
+                returnObjects(toReturn.ToArray(), UUID.Zero);
+            }
         }
 
         /// <summary>
@@ -2117,6 +2186,8 @@ namespace OpenSim.Region.Framework.Scenes
             }
 
             group.DeleteGroupFromScene(silent);
+            if (!silent)
+                SendKillObject(new List<uint>() { group.LocalId });
 
 //            m_log.DebugFormat("[SCENE]: Exit DeleteSceneObject() for {0} {1}", group.Name, group.UUID);
         }
@@ -2446,6 +2517,12 @@ namespace OpenSim.Region.Framework.Scenes
         /// <returns>True if the SceneObjectGroup was added, False if it was not</returns>
         public bool AddSceneObject(SceneObjectGroup sceneObject)
         {
+            if (sceneObject.OwnerID == UUID.Zero)
+            {
+                m_log.ErrorFormat("[SCENE]: Owner ID for {0} was zero", sceneObject.UUID);
+                return false;
+            }
+
             // If the user is banned, we won't let any of their objects
             // enter. Period.
             //
@@ -2493,15 +2570,28 @@ namespace OpenSim.Region.Framework.Scenes
                     
                     if (AttachmentsModule != null)
                         AttachmentsModule.AttachObject(sp.ControllingClient, grp, 0, false);
+
+                    m_log.DebugFormat("[SCENE]: Attachment {0} arrived and scene presence was found, attaching", sceneObject.UUID);
                 }
                 else
                 {
+                    m_log.DebugFormat("[SCENE]: Attachment {0} arrived and scene presence was not found, setting to temp", sceneObject.UUID);
                     RootPrim.RemFlag(PrimFlags.TemporaryOnRez);
                     RootPrim.AddFlag(PrimFlags.TemporaryOnRez);
                 }
+                if (sceneObject.OwnerID == UUID.Zero)
+                {
+                    m_log.ErrorFormat("[SCENE]: Owner ID for {0} was zero after attachment processing. BUG!", sceneObject.UUID);
+                    return false;
+                }
             }
             else
             {
+                if (sceneObject.OwnerID == UUID.Zero)
+                {
+                    m_log.ErrorFormat("[SCENE]: Owner ID for non-attachment {0} was zero", sceneObject.UUID);
+                    return false;
+                }
                 AddRestoredSceneObject(sceneObject, true, false);
 
                 if (!Permissions.CanObjectEntry(sceneObject.UUID,
@@ -2774,6 +2864,7 @@ namespace OpenSim.Region.Framework.Scenes
             client.OnFetchInventory += HandleFetchInventory;
             client.OnUpdateInventoryItem += UpdateInventoryItemAsset;
             client.OnCopyInventoryItem += CopyInventoryItem;
+            client.OnMoveItemsAndLeaveCopy += MoveInventoryItemsLeaveCopy;
             client.OnMoveInventoryItem += MoveInventoryItem;
             client.OnRemoveInventoryItem += RemoveInventoryItem;
             client.OnRemoveInventoryFolder += RemoveInventoryFolder;
@@ -2952,15 +3043,16 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <param name="agentId">The avatar's Unique ID</param>
         /// <param name="client">The IClientAPI for the client</param>
-        public virtual void TeleportClientHome(UUID agentId, IClientAPI client)
+        public virtual bool TeleportClientHome(UUID agentId, IClientAPI client)
         {
             if (m_teleportModule != null)
-                m_teleportModule.TeleportHome(agentId, client);
+                return m_teleportModule.TeleportHome(agentId, client);
             else
             {
                 m_log.DebugFormat("[SCENE]: Unable to teleport user home: no AgentTransferModule is active");
                 client.SendTeleportFailed("Unable to perform teleports on this simulator.");
             }
+            return false;
         }
 
         /// <summary>
@@ -3059,6 +3151,16 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="flags"></param>
         public virtual void SetHomeRezPoint(IClientAPI remoteClient, ulong regionHandle, Vector3 position, Vector3 lookAt, uint flags)
         {
+            //Add half the avatar's height so that the user doesn't fall through prims
+            ScenePresence presence;
+            if (TryGetScenePresence(remoteClient.AgentId, out presence))
+            {
+                if (presence.Appearance != null)
+                {
+                    position.Z = position.Z + (presence.Appearance.AvatarHeight / 2);
+                }
+            }
+
             if (GridUserService != null && GridUserService.SetHome(remoteClient.AgentId.ToString(), RegionInfo.RegionID, position, lookAt))
                 // FUBAR ALERT: this needs to be "Home position set." so the viewer saves a home-screenshot.
                 m_dialogModule.SendAlertToUser(remoteClient, "Home position set.");
@@ -3153,7 +3255,9 @@ namespace OpenSim.Region.Framework.Scenes
                         m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
 
                     }
+                    m_log.Debug("[Scene] Beginning ClientClosed");
                     m_eventManager.TriggerClientClosed(agentID, this);
+                    m_log.Debug("[Scene] Finished ClientClosed");
                 }
                 catch (NullReferenceException)
                 {
@@ -3161,12 +3265,15 @@ namespace OpenSim.Region.Framework.Scenes
                     // Avatar is already disposed :/
                 }
 
+                m_log.Debug("[Scene] Beginning OnRemovePresence");
                 m_eventManager.TriggerOnRemovePresence(agentID);
+                m_log.Debug("[Scene] Finished OnRemovePresence");
+
                 ForEachClient(
                     delegate(IClientAPI client)
                     {
                         //We can safely ignore null reference exceptions.  It means the avatar is dead and cleaned up anyway
-                        try { client.SendKillObject(avatar.RegionHandle, avatar.LocalId); }
+                        try { client.SendKillObject(avatar.RegionHandle, new List<uint>() { avatar.LocalId}); }
                         catch (NullReferenceException) { }
                     });
 
@@ -3177,8 +3284,11 @@ namespace OpenSim.Region.Framework.Scenes
                 }
 
                 // Remove the avatar from the scene
+                m_log.Debug("[Scene] Begin RemoveScenePresence");
                 m_sceneGraph.RemoveScenePresence(agentID);
+                m_log.Debug("[Scene] Finished RemoveScenePresence. Removing the client manager");
                 m_clientManager.Remove(agentID);
+                m_log.Debug("[Scene] Removed the client manager. Firing avatar.close");
 
                 try
                 {
@@ -3192,8 +3302,10 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     m_log.Error("[SCENE] Scene.cs:RemoveClient exception: " + e.ToString());
                 }
-
+                m_log.Debug("[Scene] Done. Firing RemoveCircuit");
                 m_authenticateHandler.RemoveCircuit(avatar.ControllingClient.CircuitCode);
+                CleanDroppedAttachments();
+                m_log.Debug("[Scene] The avatar has left the building");
                 //m_log.InfoFormat("[SCENE] Memory pre  GC {0}", System.GC.GetTotalMemory(false));
                 //m_log.InfoFormat("[SCENE] Memory post GC {0}", System.GC.GetTotalMemory(true));
             }
@@ -3224,18 +3336,24 @@ namespace OpenSim.Region.Framework.Scenes
 
         #region Entities
 
-        public void SendKillObject(uint localID)
+        public void SendKillObject(List<uint> localIDs)
         {
-            SceneObjectPart part = GetSceneObjectPart(localID);
-            if (part != null) // It is a prim
+            List<uint> deleteIDs = new List<uint>();
+
+            foreach (uint localID in localIDs)
             {
-                if (part.ParentGroup != null && !part.ParentGroup.IsDeleted) // Valid
+                SceneObjectPart part = GetSceneObjectPart(localID);
+                if (part != null) // It is a prim
                 {
-                    if (part.ParentGroup.RootPart != part) // Child part
-                        return;
+                    if (part.ParentGroup != null && !part.ParentGroup.IsDeleted) // Valid
+                    {
+                        if (part.ParentGroup.RootPart != part) // Child part
+                            continue;
+                    }
                 }
+                deleteIDs.Add(localID);
             }
-            ForEachClient(delegate(IClientAPI client) { client.SendKillObject(m_regionHandle, localID); });
+            ForEachClient(delegate(IClientAPI client) { client.SendKillObject(m_regionHandle, deleteIDs); });
         }
 
         #endregion
@@ -3253,7 +3371,6 @@ namespace OpenSim.Region.Framework.Scenes
             //m_sceneGridService.OnChildAgentUpdate += IncomingChildAgentDataUpdate;
             //m_sceneGridService.OnRemoveKnownRegionFromAvatar += HandleRemoveKnownRegionsFromAvatar;
             m_sceneGridService.OnLogOffUser += HandleLogOffUserFromGrid;
-            m_sceneGridService.KiPrimitive += SendKillObject;
             m_sceneGridService.OnGetLandData += GetLandData;
         }
 
@@ -3262,7 +3379,6 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void UnRegisterRegionWithComms()
         {
-            m_sceneGridService.KiPrimitive -= SendKillObject;
             m_sceneGridService.OnLogOffUser -= HandleLogOffUserFromGrid;
             //m_sceneGridService.OnRemoveKnownRegionFromAvatar -= HandleRemoveKnownRegionsFromAvatar;
             //m_sceneGridService.OnChildAgentUpdate -= IncomingChildAgentDataUpdate;
@@ -3333,6 +3449,7 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 if (land != null && !TestLandRestrictions(agent, land, out reason))
                 {
+                    m_log.DebugFormat("[CONNECTION BEGIN]: Denying access to {0} due to no land access", agent.AgentID.ToString());
                     return false;
                 }
             }
@@ -3390,6 +3507,8 @@ namespace OpenSim.Region.Framework.Scenes
 
             if (vialogin) 
             {
+                CleanDroppedAttachments();
+
                 if (TestBorderCross(agent.startpos, Cardinals.E))
                 {
                     Border crossedBorder = GetCrossedBorder(agent.startpos, Cardinals.E);
@@ -3446,6 +3565,8 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
                 // Honor parcel landing type and position.
+                /*
+                ILandObject land = LandChannel.GetLandObject(agent.startpos.X, agent.startpos.Y);
                 if (land != null)
                 {
                     if (land.LandData.LandingType == (byte)1 && land.LandData.UserLocation != Vector3.Zero)
@@ -3453,6 +3574,7 @@ namespace OpenSim.Region.Framework.Scenes
                         agent.startpos = land.LandData.UserLocation;
                     }
                 }
+                */// This is now handled properly in ScenePresence.MakeRootAgent
             }
 
             return true;
@@ -3738,6 +3860,14 @@ namespace OpenSim.Region.Framework.Scenes
 
             // We have to wait until the viewer contacts this region after receiving EAC.
             // That calls AddNewClient, which finally creates the ScenePresence
+            int num = m_sceneGraph.GetNumberOfScenePresences();
+
+            if (num >= RegionInfo.RegionSettings.AgentLimit)
+            {
+                if (!Permissions.IsAdministrator(cAgentData.AgentID))
+                    return false;
+            }
+
             ScenePresence childAgentUpdate = WaitGetScenePresence(cAgentData.AgentID);
             if (childAgentUpdate != null)
             {
@@ -3803,12 +3933,22 @@ namespace OpenSim.Region.Framework.Scenes
             return false;
         }
 
+        public bool IncomingCloseAgent(UUID agentID)
+        {
+            return IncomingCloseAgent(agentID, false);
+        }
+
+        public bool IncomingCloseChildAgent(UUID agentID)
+        {
+            return IncomingCloseAgent(agentID, true);
+        }
+
         /// <summary>
         /// Tell a single agent to disconnect from the region.
         /// </summary>
-        /// <param name="regionHandle"></param>
         /// <param name="agentID"></param>
-        public bool IncomingCloseAgent(UUID agentID)
+        /// <param name="childOnly"></param>
+        public bool IncomingCloseAgent(UUID agentID, bool childOnly)
         {
             //m_log.DebugFormat("[SCENE]: Processing incoming close agent for {0}", agentID);
 
@@ -3820,7 +3960,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                    m_sceneGraph.removeUserCount(false);
                 }
-                else
+                else if (!childOnly)
                 {
                    m_sceneGraph.removeUserCount(true);
                 }
@@ -3836,9 +3976,12 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                     else
                         presence.ControllingClient.SendShutdownConnectionNotice();
+                    presence.ControllingClient.Close(false);
+                }
+                else if (!childOnly)
+                {
+                    presence.ControllingClient.Close(true);
                 }
-
-                presence.ControllingClient.Close();
                 return true;
             }
 
@@ -4460,7 +4603,7 @@ namespace OpenSim.Region.Framework.Scenes
             //
             int health=1; // Start at 1, means we're up
 
-            if ((Util.EnvironmentTickCountSubtract(m_lastUpdate)) < 1000)
+            if (m_firstHeartbeat || ((Util.EnvironmentTickCountSubtract(m_lastUpdate)) < 1000))
                 health+=1;
             else
                 return health;
@@ -4924,8 +5067,17 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 float ominX, ominY, ominZ, omaxX, omaxY, omaxZ;
 
+                Vector3 vec = g.AbsolutePosition;
+
                 g.GetAxisAlignedBoundingBoxRaw(out ominX, out omaxX, out ominY, out omaxY, out ominZ, out omaxZ);
 
+                ominX += vec.X;
+                omaxX += vec.X;
+                ominY += vec.Y;
+                omaxY += vec.Y;
+                ominZ += vec.Z;
+                omaxZ += vec.Z;
+
                 if (minX > ominX)
                     minX = ominX;
                 if (minY > ominY)
@@ -4966,5 +5118,45 @@ namespace OpenSim.Region.Framework.Scenes
                     throw new Exception(error);
             }
         }
+
+        public void CleanDroppedAttachments()
+        {
+            List<SceneObjectGroup> objectsToDelete =
+                    new List<SceneObjectGroup>();
+
+            lock (m_cleaningAttachments)
+            {
+                ForEachSOG(delegate (SceneObjectGroup grp)
+                        {
+                            if (grp.RootPart.Shape.PCode == 0 && grp.RootPart.Shape.State != 0 && (!objectsToDelete.Contains(grp)))
+                            {
+                                UUID agentID = grp.OwnerID;
+                                if (agentID == UUID.Zero)
+                                {
+                                    objectsToDelete.Add(grp);
+                                    return;
+                                }
+
+                                ScenePresence sp = GetScenePresence(agentID);
+                                if (sp == null)
+                                {
+                                    objectsToDelete.Add(grp);
+                                    return;
+                                }
+                            }
+                        });
+            }
+
+            if (objectsToDelete.Count > 0)
+            {
+                m_log.DebugFormat("[SCENE]: Starting delete of {0} dropped attachments", objectsToDelete.Count);
+                foreach (SceneObjectGroup grp in objectsToDelete)
+                {
+                    m_log.InfoFormat("[SCENE]: Deleting dropped attachment {0} of user {1}", grp.UUID, grp.OwnerID);
+                    DeleteSceneObject(grp, true);
+                }
+                m_log.Debug("[SCENE]: Finished dropped attachment deletion");
+            }
+        }
     }
 }