Preserve attachment point & position when attachment is rezzed in world

Patch taken from
http://opensimulator.org/mantis/view.php?id=4905
originally by Greg C.

Fixed to apply to r/23314 commit
ba9daf849e7c8db48e7c03e7cdedb77776b2052f
(cherry picked from commit 4ff9fbca441110cc2b93edc7286e0e9339e61cbe)

14 files changed, 150 insertions, 10 deletions

diff --git a/OpenSim/Data/MSSQL/MSSQLSimulationData.cs b/OpenSim/Data/MSSQL/MSSQLSimulationData.cs
index 5135050..f41f60c 100644
--- a/OpenSim/Data/MSSQL/MSSQLSimulationData.cs
+++ b/OpenSim/Data/MSSQL/MSSQLSimulationData.cs
@@ -351,7 +351,7 @@ IF EXISTS (SELECT UUID FROM prims WHERE UUID = @UUID)
             ScriptAccessPin = @ScriptAccessPin, AllowedDrop = @AllowedDrop, DieAtEdge = @DieAtEdge, SalePrice = @SalePrice, 
             SaleType = @SaleType, ColorR = @ColorR, ColorG = @ColorG, ColorB = @ColorB, ColorA = @ColorA, ParticleSystem = @ParticleSystem, 
             ClickAction = @ClickAction, Material = @Material, CollisionSound = @CollisionSound, CollisionSoundVolume = @CollisionSoundVolume, PassTouches = @PassTouches,
-            LinkNumber = @LinkNumber, MediaURL = @MediaURL, DynAttrs = @DynAttrs,
+            LinkNumber = @LinkNumber, MediaURL = @MediaURL, AttachedPosX = @AttachedPosX, AttachedPosY = @AttachedPosY, AttachedPosZ = @AttachedPosZ, DynAttrs = @DynAttrs,
             PhysicsShapeType = @PhysicsShapeType, Density = @Density, GravityModifier = @GravityModifier, Friction = @Friction, Restitution = @Restitution
         WHERE UUID = @UUID
     END
@@ -367,7 +367,7 @@ ELSE
             PayPrice, PayButton1, PayButton2, PayButton3, PayButton4, LoopedSound, LoopedSoundGain, TextureAnimation, OmegaX, 
             OmegaY, OmegaZ, CameraEyeOffsetX, CameraEyeOffsetY, CameraEyeOffsetZ, CameraAtOffsetX, CameraAtOffsetY, CameraAtOffsetZ, 
             ForceMouselook, ScriptAccessPin, AllowedDrop, DieAtEdge, SalePrice, SaleType, ColorR, ColorG, ColorB, ColorA, 
-            ParticleSystem, ClickAction, Material, CollisionSound, CollisionSoundVolume, PassTouches, LinkNumber, MediaURL, DynAttrs,
+            ParticleSystem, ClickAction, Material, CollisionSound, CollisionSoundVolume, PassTouches, LinkNumber, MediaURL, AttachedPosX, AttachedPosY, AttachedPosZ, DynAttrs,
             PhysicsShapeType, Density, GravityModifier, Friction, Restitution
             ) VALUES (
             @UUID, @CreationDate, @Name, @Text, @Description, @SitName, @TouchName, @ObjectFlags, @OwnerMask, @NextOwnerMask, @GroupMask, 
@@ -378,7 +378,7 @@ ELSE
             @PayPrice, @PayButton1, @PayButton2, @PayButton3, @PayButton4, @LoopedSound, @LoopedSoundGain, @TextureAnimation, @OmegaX, 
             @OmegaY, @OmegaZ, @CameraEyeOffsetX, @CameraEyeOffsetY, @CameraEyeOffsetZ, @CameraAtOffsetX, @CameraAtOffsetY, @CameraAtOffsetZ, 
             @ForceMouselook, @ScriptAccessPin, @AllowedDrop, @DieAtEdge, @SalePrice, @SaleType, @ColorR, @ColorG, @ColorB, @ColorA, 
-            @ParticleSystem, @ClickAction, @Material, @CollisionSound, @CollisionSoundVolume, @PassTouches, @LinkNumber, @MediaURL, @DynAttrs,
+            @ParticleSystem, @ClickAction, @Material, @CollisionSound, @CollisionSoundVolume, @PassTouches, @LinkNumber, @MediaURL, @AttachedPosX, @AttachedPosY, @AttachedPosZ, @DynAttrs,
             @PhysicsShapeType, @Density, @GravityModifier, @Friction, @Restitution
             )
     END";
@@ -1695,6 +1695,12 @@ VALUES
             if (!(primRow["MediaURL"] is System.DBNull))
                 prim.MediaUrl = (string)primRow["MediaURL"];
             
+            if (!(primRow["AttachedPosX"] is System.DBNull))
+                prim.AttachedPos = new Vector3(
+                                        Convert.ToSingle(primRow["AttachedPosX"]),
+                                        Convert.ToSingle(primRow["AttachedPosY"]),
+                                        Convert.ToSingle(primRow["AttachedPosZ"]));
+
             if (!(primRow["DynAttrs"] is System.DBNull))
                 prim.DynAttrs = DAMap.FromXml((string)primRow["DynAttrs"]);
             else
@@ -2099,7 +2105,10 @@ VALUES
                 parameters.Add(_Database.CreateParameter("PassTouches", 0));
             parameters.Add(_Database.CreateParameter("LinkNumber", prim.LinkNum));
             parameters.Add(_Database.CreateParameter("MediaURL", prim.MediaUrl));
-            
+            parameters.Add(_Database.CreateParameter("AttachedPosX", prim.AttachedPos.X));
+            parameters.Add(_Database.CreateParameter("AttachedPosY", prim.AttachedPos.Y));
+            parameters.Add(_Database.CreateParameter("AttachedPosZ", prim.AttachedPos.Z));
+
             if (prim.DynAttrs.CountNamespaces > 0)
                 parameters.Add(_Database.CreateParameter("DynAttrs", prim.DynAttrs.ToXml()));
             else
diff --git a/OpenSim/Data/MSSQL/Resources/RegionStore.migrations b/OpenSim/Data/MSSQL/Resources/RegionStore.migrations
index 4549801..bb89884 100644
--- a/OpenSim/Data/MSSQL/Resources/RegionStore.migrations
+++ b/OpenSim/Data/MSSQL/Resources/RegionStore.migrations
@@ -1168,3 +1168,15 @@ ALTER TABLE prims ADD `Friction` double NOT NULL default '0.6';
 ALTER TABLE prims ADD `Restitution` double NOT NULL default '0.5';
 
 COMMIT
+
+:VERSION 40       #---------------- Save Attachment info
+
+BEGIN TRANSACTION
+
+ALTER TABLE prims ADD AttachedPosX float(53) default 0.0;
+ALTER TABLE prims ADD AttachedPosY float(53) default 0.0;
+ALTER TABLE prims ADD AttachedPosZ float(53) default 0.0;
+ALTER TABLE primshapes ADD LastAttachPoint int not null default 0;
+
+COMMIT
+
diff --git a/OpenSim/Data/MySQL/MySQLSimulationData.cs b/OpenSim/Data/MySQL/MySQLSimulationData.cs
index cf367ef..b03a904 100644
--- a/OpenSim/Data/MySQL/MySQLSimulationData.cs
+++ b/OpenSim/Data/MySQL/MySQLSimulationData.cs
@@ -173,7 +173,8 @@ namespace OpenSim.Data.MySQL
                                     "ParticleSystem, ClickAction, Material, " +
                                     "CollisionSound, CollisionSoundVolume, " +
                                     "PassTouches, " +
-                                    "LinkNumber, MediaURL, KeyframeMotion, " +
+                                    "LinkNumber, MediaURL, AttachedPosX, " +
+                                    "AttachedPosY, AttachedPosZ, KeyframeMotion, " +
                                     "PhysicsShapeType, Density, GravityModifier, " +
                                     "Friction, Restitution, DynAttrs " +
                                     ") values (" + "?UUID, " +
@@ -208,7 +209,8 @@ namespace OpenSim.Data.MySQL
                                     "?ColorB, ?ColorA, ?ParticleSystem, " +
                                     "?ClickAction, ?Material, ?CollisionSound, " +
                                     "?CollisionSoundVolume, ?PassTouches, " +
-                                    "?LinkNumber, ?MediaURL, ?KeyframeMotion, " +
+                                    "?LinkNumber, ?MediaURL, ?AttachedPosX, " +
+                                    "?AttachedPosY, ?AttachedPosZ, ?KeyframeMotion, " +
                                     "?PhysicsShapeType, ?Density, ?GravityModifier, " +
                                     "?Friction, ?Restitution, ?DynAttrs)";
 
@@ -227,7 +229,7 @@ namespace OpenSim.Data.MySQL
                                     "PathTaperX, PathTaperY, PathTwist, " +
                                     "PathTwistBegin, ProfileBegin, ProfileEnd, " +
                                     "ProfileCurve, ProfileHollow, Texture, " +
-                                    "ExtraParams, State, Media) " +
+                                    "ExtraParams, State, LastAttachPoint, Media) " +
                                     "values (?UUID, " +
                                     "?Shape, ?ScaleX, ?ScaleY, ?ScaleZ, " +
                                     "?PCode, ?PathBegin, ?PathEnd, " +
@@ -239,7 +241,7 @@ namespace OpenSim.Data.MySQL
                                     "?PathTwistBegin, ?ProfileBegin, " +
                                     "?ProfileEnd, ?ProfileCurve, " +
                                     "?ProfileHollow, ?Texture, ?ExtraParams, " +
-                                    "?State, ?Media)";
+                                    "?State, ?LastAttachPoint, ?Media)";
 
                             FillShapeCommand(cmd, prim);
 
@@ -1303,7 +1305,16 @@ namespace OpenSim.Data.MySQL
             
             if (!(row["MediaURL"] is System.DBNull))
                 prim.MediaUrl = (string)row["MediaURL"];
-            
+
+            if (!(row["AttachedPosX"] is System.DBNull))
+            {
+                prim.AttachedPos = new Vector3(
+                    (float)(double)row["AttachedPosX"],
+                    (float)(double)row["AttachedPosY"],
+                    (float)(double)row["AttachedPosZ"]
+                    );
+            }
+
             if (!(row["DynAttrs"] is System.DBNull))
                 prim.DynAttrs = DAMap.FromXml((string)row["DynAttrs"]);
             else
@@ -1673,6 +1684,12 @@ namespace OpenSim.Data.MySQL
 
             cmd.Parameters.AddWithValue("LinkNumber", prim.LinkNum);
             cmd.Parameters.AddWithValue("MediaURL", prim.MediaUrl);
+            if (prim.AttachedPos != null)
+            {
+                cmd.Parameters.AddWithValue("AttachedPosX", (double)prim.AttachedPos.X);
+                cmd.Parameters.AddWithValue("AttachedPosY", (double)prim.AttachedPos.Y);
+                cmd.Parameters.AddWithValue("AttachedPosZ", (double)prim.AttachedPos.Z);
+            }
 
             if (prim.KeyframeMotion != null)
                 cmd.Parameters.AddWithValue("KeyframeMotion", prim.KeyframeMotion.Serialize());
@@ -1879,6 +1896,7 @@ namespace OpenSim.Data.MySQL
             s.ExtraParams = (byte[])row["ExtraParams"];
 
             s.State = (byte)(int)row["State"];
+            s.LastAttachPoint = (byte)(int)row["LastAttachPoint"];
             
             if (!(row["Media"] is System.DBNull))
                 s.Media = PrimitiveBaseShape.MediaList.FromXml((string)row["Media"]);
@@ -1925,6 +1943,7 @@ namespace OpenSim.Data.MySQL
             cmd.Parameters.AddWithValue("Texture", s.TextureEntry);
             cmd.Parameters.AddWithValue("ExtraParams", s.ExtraParams);
             cmd.Parameters.AddWithValue("State", s.State);
+            cmd.Parameters.AddWithValue("LastAttachPoint", s.LastAttachPoint);
             cmd.Parameters.AddWithValue("Media", null == s.Media ? null : s.Media.ToXml());
         }
 
diff --git a/OpenSim/Data/MySQL/Resources/RegionStore.migrations b/OpenSim/Data/MySQL/Resources/RegionStore.migrations
index 70b9558..a77e44d 100644
--- a/OpenSim/Data/MySQL/Resources/RegionStore.migrations
+++ b/OpenSim/Data/MySQL/Resources/RegionStore.migrations
@@ -930,3 +930,13 @@ BEGIN;
 ALTER TABLE prims ADD COLUMN `KeyframeMotion` blob;
 
 COMMIT;
+
+:VERSION 49         #--------------------- Save attachment info
+
+BEGIN;
+ALTER TABLE prims ADD COLUMN AttachedPosX double default 0;
+ALTER TABLE prims ADD COLUMN AttachedPosY double default 0;
+ALTER TABLE prims ADD COLUMN AttachedPosZ double default 0;
+ALTER TABLE primshapes ADD COLUMN LastAttachPoint int(4) not null default '0';
+COMMIT;
+
diff --git a/OpenSim/Data/SQLite/Resources/RegionStore.migrations b/OpenSim/Data/SQLite/Resources/RegionStore.migrations
index bff039d..901068f 100644
--- a/OpenSim/Data/SQLite/Resources/RegionStore.migrations
+++ b/OpenSim/Data/SQLite/Resources/RegionStore.migrations
@@ -600,3 +600,15 @@ BEGIN;
 ALTER TABLE prims ADD COLUMN `KeyframeMotion` blob;
 
 COMMIT;
+
+:VERSION 30       #---------------- Save Attachment info
+
+BEGIN;
+
+ALTER TABLE prims ADD COLUMN AttachedPosX double default '0';
+ALTER TABLE prims ADD COLUMN AttachedPosY double default '0';
+ALTER TABLE prims ADD COLUMN AttachedPosZ double default '0';
+ALTER TABLE primshapes ADD COLUMN LastAttachPoint int not null default '0';
+
+COMMIT;
+
diff --git a/OpenSim/Data/SQLite/SQLiteSimulationData.cs b/OpenSim/Data/SQLite/SQLiteSimulationData.cs
index eba6612..d938b6b 100644
--- a/OpenSim/Data/SQLite/SQLiteSimulationData.cs
+++ b/OpenSim/Data/SQLite/SQLiteSimulationData.cs
@@ -1236,6 +1236,10 @@ namespace OpenSim.Data.SQLite
 
             createCol(prims, "MediaURL", typeof(String));
             
+            createCol(prims, "AttachedPosX", typeof(Double));
+            createCol(prims, "AttachedPosY", typeof(Double));
+            createCol(prims, "AttachedPosZ", typeof(Double));
+
             createCol(prims, "DynAttrs", typeof(String));
 
             createCol(prims, "PhysicsShapeType", typeof(Byte));
@@ -1724,6 +1728,12 @@ namespace OpenSim.Data.SQLite
                 prim.MediaUrl = (string)row["MediaURL"];
             }
             
+            prim.AttachedPos = new Vector3(
+                Convert.ToSingle(row["AttachedPosX"]),
+                Convert.ToSingle(row["AttachedPosY"]),
+                Convert.ToSingle(row["AttachedPosZ"])
+                );
+
             if (!(row["DynAttrs"] is System.DBNull))
             {
                 //m_log.DebugFormat("[SQLITE]: DynAttrs type [{0}]", row["DynAttrs"].GetType());
@@ -2176,6 +2186,10 @@ namespace OpenSim.Data.SQLite
 
             row["MediaURL"] = prim.MediaUrl;
 
+            row["AttachedPosX"] = prim.AttachedPos.X;
+            row["AttachedPosY"] = prim.AttachedPos.Y;
+            row["AttachedPosZ"] = prim.AttachedPos.Z;
+
             if (prim.DynAttrs.CountNamespaces > 0)
                 row["DynAttrs"] = prim.DynAttrs.ToXml();
             else
@@ -2444,6 +2458,7 @@ namespace OpenSim.Data.SQLite
             s.ProfileCurve = Convert.ToByte(row["ProfileCurve"]);
             s.ProfileHollow = Convert.ToUInt16(row["ProfileHollow"]);
             s.State = Convert.ToByte(row["State"]);
+            s.LastAttachPoint = Convert.ToByte(row["LastAttachPoint"]);
 
             byte[] textureEntry = (byte[])row["Texture"];
             s.TextureEntry = textureEntry;
@@ -2493,6 +2508,7 @@ namespace OpenSim.Data.SQLite
             row["ProfileCurve"] = s.ProfileCurve;
             row["ProfileHollow"] = s.ProfileHollow;
             row["State"] = s.State;
+            row["LastAttachPoint"] = s.LastAttachPoint;
 
             row["Texture"] = s.TextureEntry;
             row["ExtraParams"] = s.ExtraParams;
diff --git a/OpenSim/Framework/PrimitiveBaseShape.cs b/OpenSim/Framework/PrimitiveBaseShape.cs
index c1e1a4f..c8a5376 100644
--- a/OpenSim/Framework/PrimitiveBaseShape.cs
+++ b/OpenSim/Framework/PrimitiveBaseShape.cs
@@ -105,6 +105,7 @@ namespace OpenSim.Framework
         private ushort _profileHollow;
         private Vector3 _scale;
         private byte _state;
+        private byte _lastattach;
         private ProfileShape _profileShape;
         private HollowShape _hollowShape;
 
@@ -207,6 +208,7 @@ namespace OpenSim.Framework
             PCode = (byte)prim.PrimData.PCode;
 
             State = prim.PrimData.State;
+            LastAttachPoint = prim.PrimData.State;
             PathBegin = Primitive.PackBeginCut(prim.PrimData.PathBegin);
             PathEnd = Primitive.PackEndCut(prim.PrimData.PathEnd);
             PathScaleX = Primitive.PackPathScale(prim.PrimData.PathScaleX);
@@ -583,6 +585,15 @@ namespace OpenSim.Framework
             }
         }
 
+        public byte LastAttachPoint {
+            get {
+                return _lastattach;
+            }
+            set {
+                _lastattach = value;
+            }
+        }
+
         public ProfileShape ProfileShape {
             get {
                 return _profileShape;
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/ObjectAdd.cs b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/ObjectAdd.cs
index 92805e2..94f8bc1 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/ObjectAdd.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/ObjectAdd.cs
@@ -155,6 +155,7 @@ namespace OpenSim.Region.ClientStack.Linden
             Quaternion rotation = Quaternion.Identity;
             Vector3 scale = Vector3.Zero;
             int state = 0;
+            int lastattach = 0;
 
             if (r.Type != OSDType.Map) // not a proper req
                 return responsedata;
@@ -224,6 +225,7 @@ namespace OpenSim.Region.ClientStack.Linden
 
                 ray_target_id = ObjMap["RayTargetId"].AsUUID();
                 state = ObjMap["State"].AsInteger();
+                lastattach = ObjMap["LastAttachPoint"].AsInteger();
                 try
                 {
                     ray_end = ((OSDArray)ObjMap["RayEnd"]).AsVector3();
@@ -290,6 +292,7 @@ namespace OpenSim.Region.ClientStack.Linden
 
                 //session_id = rm["session_id"].AsUUID();
                 state = rm["state"].AsInteger();
+                lastattach = rm["last_attach_point"].AsInteger();
                 try
                 {
                     ray_end = ((OSDArray)rm["ray_end"]).AsVector3();
@@ -331,6 +334,7 @@ namespace OpenSim.Region.ClientStack.Linden
             pbs.ProfileEnd = (ushort)profile_end;
             pbs.Scale = scale;
             pbs.State = (byte)state;
+            pbs.LastAttachPoint = (byte)lastattach;
 
             SceneObjectGroup obj = null; ;
 
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
index 55a503e..769fe28 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
@@ -277,6 +277,7 @@ namespace OpenSim.Region.ClientStack.Linden
                 pbs.ProfileEnd = (ushort) obj.ProfileEnd;
                 pbs.Scale = obj.Scale;
                 pbs.State = (byte) 0;
+                pbs.LastAttachPoint = (byte) 0;
                 SceneObjectPart prim = new SceneObjectPart();
                 prim.UUID = UUID.Random();
                 prim.CreatorID = AgentId;
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index 1b091bf..3609ec1 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -12188,6 +12188,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             shape.PCode = addPacket.ObjectData.PCode;
             shape.State = addPacket.ObjectData.State;
+            shape.LastAttachPoint = addPacket.ObjectData.State;
             shape.PathBegin = addPacket.ObjectData.PathBegin;
             shape.PathEnd = addPacket.ObjectData.PathEnd;
             shape.PathScaleX = addPacket.ObjectData.PathScaleX;
diff --git a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
index 2818712..d0e0b35 100644
--- a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
@@ -422,6 +422,13 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                 attachPos = Vector3.Zero;
             }
 
+            // if the attachment point is the same as previous, make sure we get the saved
+            // position info.
+            if (attachmentPt != 0 && attachmentPt == group.RootPart.Shape.LastAttachPoint)
+            {
+                attachPos = group.RootPart.AttachedPos;
+            }
+
             // AttachmentPt 0 means the client chose to 'wear' the attachment.
             if (attachmentPt == (uint)AttachmentPoint.Default)
             {
@@ -429,6 +436,14 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                 attachmentPt = group.AttachmentPoint;
             }
 
+            // if we didn't find an attach point, look for where it was last attached
+            if (attachmentPt == 0)
+            {
+                attachmentPt = (uint)group.RootPart.Shape.LastAttachPoint;
+                attachPos = group.RootPart.AttachedPos;
+                group.HasGroupChanged = true;
+            }
+
             // if we still didn't find a suitable attachment point.......
             if (attachmentPt == 0)
             {
@@ -619,6 +634,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                 so.ClearPartAttachmentData();
                 rootPart.ApplyPhysics(rootPart.GetEffectiveObjectFlags(), rootPart.VolumeDetectActive);
                 so.HasGroupChanged = true;
+                so.RootPart.Shape.LastAttachPoint = (byte)so.AttachmentPoint;
                 rootPart.Rezzed = DateTime.Now;
                 rootPart.RemFlag(PrimFlags.TemporaryOnRez);
                 so.AttachToBackup();
@@ -1210,4 +1226,4 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
 
         #endregion
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
index 68e4e26..0ec9575 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
@@ -836,6 +836,14 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                     m_log.Debug("[INVENTORY ACCESS MODULE]: Object has UUID.Zero! Position 3");
                 }
 
+                // if this was previously an attachment and is now being rezzed,
+                // save the old attachment info.
+                if (group.IsAttachment == false && group.RootPart.Shape.State != 0)
+                {
+                    group.RootPart.AttachedPos = group.AbsolutePosition;
+                    group.RootPart.Shape.LastAttachPoint = (byte)group.AttachmentPoint;
+                }
+
                 foreach (SceneObjectPart part in group.Parts)
                 {
                     // Make the rezzer the owner, as this is not necessarily set correctly in the serialized asset.
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index 69b5f43..4bebbe8 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -2230,6 +2230,13 @@ namespace OpenSim.Region.Framework.Scenes
                     sourcePart.Inventory.RemoveInventoryItem(item.ItemID);
             }
 
+
+            if (group.IsAttachment == false && group.RootPart.Shape.State != 0)
+            {
+                group.RootPart.AttachedPos = group.AbsolutePosition;
+                group.RootPart.Shape.LastAttachPoint = (byte)group.AttachmentPoint;
+            }
+                                    
             group.FromPartID = sourcePart.UUID;
             AddNewSceneObject(group, true, pos, rot, vel);
             
diff --git a/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs b/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
index 945745e..3ea936c 100644
--- a/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
+++ b/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
@@ -365,6 +365,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             m_SOPXmlProcessors.Add("CollisionSound", ProcessCollisionSound);
             m_SOPXmlProcessors.Add("CollisionSoundVolume", ProcessCollisionSoundVolume);
             m_SOPXmlProcessors.Add("MediaUrl", ProcessMediaUrl);
+            m_SOPXmlProcessors.Add("AttachedPos", ProcessAttachedPos);
             m_SOPXmlProcessors.Add("DynAttrs", ProcessDynAttrs);
             m_SOPXmlProcessors.Add("TextureAnimation", ProcessTextureAnimation);
             m_SOPXmlProcessors.Add("ParticleSystem", ProcessParticleSystem);
@@ -433,6 +434,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             m_ShapeXmlProcessors.Add("ProfileEnd", ProcessShpProfileEnd);
             m_ShapeXmlProcessors.Add("ProfileHollow", ProcessShpProfileHollow);
             m_ShapeXmlProcessors.Add("Scale", ProcessShpScale);
+            m_ShapeXmlProcessors.Add("LastAttachPoint", ProcessShpLastAttach);
             m_ShapeXmlProcessors.Add("State", ProcessShpState);
             m_ShapeXmlProcessors.Add("ProfileShape", ProcessShpProfileShape);
             m_ShapeXmlProcessors.Add("HollowShape", ProcessShpHollowShape);
@@ -761,6 +763,11 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             obj.MediaUrl = reader.ReadElementContentAsString("MediaUrl", String.Empty);
         }
 
+        private static void ProcessAttachedPos(SceneObjectPart obj, XmlTextReader reader)
+        {
+            obj.AttachedPos = Util.ReadVector(reader, "AttachedPos");
+        }
+
         private static void ProcessDynAttrs(SceneObjectPart obj, XmlTextReader reader)
         {
             obj.DynAttrs.ReadXml(reader);
@@ -1043,6 +1050,11 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             shp.State = (byte)reader.ReadElementContentAsInt("State", String.Empty);
         }
 
+        private static void ProcessShpLastAttach(PrimitiveBaseShape shp, XmlTextReader reader)
+        {
+            shp.LastAttachPoint = (byte)reader.ReadElementContentAsInt("LastAttachPoint", String.Empty);
+        }
+
         private static void ProcessShpProfileShape(PrimitiveBaseShape shp, XmlTextReader reader)
         {
             shp.ProfileShape = Util.ReadEnum<ProfileShape>(reader, "ProfileShape");
@@ -1289,6 +1301,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             writer.WriteElementString("CollisionSoundVolume", sop.CollisionSoundVolume.ToString());
             if (sop.MediaUrl != null)
                 writer.WriteElementString("MediaUrl", sop.MediaUrl.ToString());
+            WriteVector(writer, "AttachedPos", sop.AttachedPos);
             
             if (sop.DynAttrs.CountNamespaces > 0)
             {
@@ -1471,6 +1484,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
                 writer.WriteElementString("ProfileEnd", shp.ProfileEnd.ToString());
                 writer.WriteElementString("ProfileHollow", shp.ProfileHollow.ToString());
                 writer.WriteElementString("State", shp.State.ToString());
+                writer.WriteElementString("LastAttachPoint", shp.LastAttachPoint.ToString());
 
                 WriteFlags(writer, "ProfileShape", shp.ProfileShape.ToString(), options);
                 WriteFlags(writer, "HollowShape", shp.HollowShape.ToString(), options);