5 files changed, 188 insertions, 134 deletions

diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
index 0ec9575..831922e 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
@@ -757,64 +757,29 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
 
             SceneObjectGroup group = null;
 
-            string xmlData = Utils.BytesToString(rezAsset.Data);
-            List<SceneObjectGroup> objlist = new List<SceneObjectGroup>();
-            List<Vector3> veclist = new List<Vector3>();
+            List<SceneObjectGroup> objlist;
+            List<Vector3> veclist;
+            Vector3 bbox;
+            float offsetHeight;
             byte bRayEndIsIntersection = (byte)(RayEndIsIntersection ? 1 : 0);
             Vector3 pos;
 
-            XmlDocument doc = new XmlDocument();
-            doc.LoadXml(xmlData);
-            XmlElement e = (XmlElement)doc.SelectSingleNode("/CoalescedObject");
-            if (e == null || attachment) // Single
-            {
-                SceneObjectGroup g = SceneObjectSerializer.FromOriginalXmlFormat(xmlData);
-
-                objlist.Add(g);
-                veclist.Add(Vector3.Zero);
+            bool single = m_Scene.GetObjectsToRez(rezAsset.Data, attachment, out objlist, out veclist, out bbox, out offsetHeight);
 
-                float offsetHeight = 0;
+            if (single)
+            {
                 pos = m_Scene.GetNewRezLocation(
                     RayStart, RayEnd, RayTargetID, Quaternion.Identity,
-                    BypassRayCast, bRayEndIsIntersection, true, g.GetAxisAlignedBoundingBox(out offsetHeight), false);
+                    BypassRayCast, bRayEndIsIntersection, true, bbox, false);
                 pos.Z += offsetHeight;
             }
             else
             {
-                XmlElement coll = (XmlElement)e;
-                float bx = Convert.ToSingle(coll.GetAttribute("x"));
-                float by = Convert.ToSingle(coll.GetAttribute("y"));
-                float bz = Convert.ToSingle(coll.GetAttribute("z"));
-                Vector3 bbox = new Vector3(bx, by, bz);
-
                 pos = m_Scene.GetNewRezLocation(RayStart, RayEnd,
                         RayTargetID, Quaternion.Identity,
                         BypassRayCast, bRayEndIsIntersection, true,
                         bbox, false);
-
                 pos -= bbox / 2;
-
-                XmlNodeList groups = e.SelectNodes("SceneObjectGroup");
-                foreach (XmlNode n in groups)
-                {
-                    SceneObjectGroup g = SceneObjectSerializer.FromOriginalXmlFormat(n.OuterXml);
-
-                    objlist.Add(g);
-                    XmlElement el = (XmlElement)n;
-
-                    string rawX = el.GetAttribute("offsetx");
-                    string rawY = el.GetAttribute("offsety");
-                    string rawZ = el.GetAttribute("offsetz");
-//                        
-//                            m_log.DebugFormat(
-//                                "[INVENTORY ACCESS MODULE]: Converting coalesced object {0} offset <{1}, {2}, {3}>", 
-//                                g.Name, rawX, rawY, rawZ);
-
-                    float x = Convert.ToSingle(rawX);
-                    float y = Convert.ToSingle(rawY);
-                    float z = Convert.ToSingle(rawZ);
-                    veclist.Add(new Vector3(x, y, z));
-                }
             }
 
             if (item != null && !DoPreRezWhenFromItem(remoteClient, item, objlist, pos, veclist, attachment))
diff --git a/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs b/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
index 150193d..9ffda51 100644
--- a/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
+++ b/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
@@ -234,15 +234,17 @@ namespace OpenSim.Region.Framework.Interfaces
         List<TaskInventoryItem> GetInventoryItems(InventoryType type);
 
         /// <summary>
-        /// Get the scene object referenced by an inventory item.
+        /// Get the scene object(s) referenced by an inventory item.
         /// </summary>
         /// 
         /// This is returned in a 'rez ready' state.  That is, name, description, permissions and other details have
         /// been adjusted to reflect the part and item from which it originates.
         /// 
-        /// <param name="item"></param>
-        /// <returns>The scene object.  Null if the scene object asset couldn't be found</returns>
-        SceneObjectGroup GetRezReadySceneObject(TaskInventoryItem item);
+        /// <param name="item">Inventory item</param>
+        /// <param name="objlist">The scene objects</param>
+        /// <param name="veclist">Relative offsets for each object</param>
+        /// <returns>true = success, false = the scene object asset couldn't be found</returns>
+        bool GetRezReadySceneObjects(TaskInventoryItem item, out List<SceneObjectGroup> objlist, out List<Vector3> veclist);
 
         /// <summary>
         /// Update an existing inventory item.
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index 4bebbe8..65536db 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -31,6 +31,7 @@ using System.Collections;
 using System.Reflection;
 using System.Text;
 using System.Timers;
+using System.Xml;
 using OpenMetaverse;
 using OpenMetaverse.Packets;
 using log4net;
@@ -2135,6 +2136,69 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
+        /// Returns the list of Scene Objects in an asset.
+        /// </summary>
+        /// <remarks>
+        /// Returns one object if the asset is a regular object, and multiple objects for a coalesced object.
+        /// </remarks>
+        /// <param name="assetData">Asset data</param>
+        /// <param name="attachment">Whether the item is an attachment</param>
+        /// <param name="objlist">The objects included in the asset</param>
+        /// <param name="veclist">Relative positions of the objects</param>
+        /// <param name="bbox">Bounding box of all the objects</param>
+        /// <param name="offsetHeight">Offset in the Z axis from the centre of the bounding box
+        /// to the centre of the root prim (relevant only when returning a single object)</param>
+        /// <returns>true = returning a single object; false = multiple objects</returns>
+        public bool GetObjectsToRez(byte[] assetData, bool attachment, out List<SceneObjectGroup> objlist, out List<Vector3> veclist,
+            out Vector3 bbox, out float offsetHeight)
+        {
+            objlist = new List<SceneObjectGroup>();
+            veclist = new List<Vector3>();
+
+            XmlDocument doc = new XmlDocument();
+            string xmlData = Utils.BytesToString(assetData);
+            doc.LoadXml(xmlData);
+            XmlElement e = (XmlElement)doc.SelectSingleNode("/CoalescedObject");
+
+            if (e == null || attachment) // Single
+            {
+                SceneObjectGroup g = SceneObjectSerializer.FromOriginalXmlFormat(xmlData);
+                objlist.Add(g);
+                veclist.Add(new Vector3(0, 0, 0));
+                bbox = g.GetAxisAlignedBoundingBox(out offsetHeight);
+                return true;
+            }
+            else
+            {
+                XmlElement coll = (XmlElement)e;
+                float bx = Convert.ToSingle(coll.GetAttribute("x"));
+                float by = Convert.ToSingle(coll.GetAttribute("y"));
+                float bz = Convert.ToSingle(coll.GetAttribute("z"));
+                bbox = new Vector3(bx, by, bz);
+                offsetHeight = 0;
+
+                XmlNodeList groups = e.SelectNodes("SceneObjectGroup");
+                foreach (XmlNode n in groups)
+                {
+                    SceneObjectGroup g = SceneObjectSerializer.FromOriginalXmlFormat(n.OuterXml);
+                    objlist.Add(g);
+
+                    XmlElement el = (XmlElement)n;
+                    string rawX = el.GetAttribute("offsetx");
+                    string rawY = el.GetAttribute("offsety");
+                    string rawZ = el.GetAttribute("offsetz");
+
+                    float x = Convert.ToSingle(rawX);
+                    float y = Convert.ToSingle(rawY);
+                    float z = Convert.ToSingle(rawZ);
+                    veclist.Add(new Vector3(x, y, z));
+                }
+            }
+
+            return false;
+        }
+
+        /// <summary>
         /// Event Handler Rez an object into a scene
         /// Calls the non-void event handler
         /// </summary>
@@ -2209,19 +2273,25 @@ namespace OpenSim.Region.Framework.Scenes
         /// will be used if it exists.</param>
         /// <param name="vel">The velocity of the rezzed object.</param>
         /// <param name="param"></param>
-        /// <returns>The SceneObjectGroup rezzed or null if rez was unsuccessful</returns>
-        public virtual SceneObjectGroup RezObject(
+        /// <returns>The SceneObjectGroup(s) rezzed, or null if rez was unsuccessful</returns>
+        public virtual List<SceneObjectGroup> RezObject(
             SceneObjectPart sourcePart, TaskInventoryItem item, Vector3 pos, Quaternion? rot, Vector3 vel, int param)
         {
             if (null == item)
                 return null;
+
+            List<SceneObjectGroup> objlist;
+            List<Vector3> veclist;
             
-            SceneObjectGroup group = sourcePart.Inventory.GetRezReadySceneObject(item);
-            
-            if (null == group)
+            bool success = sourcePart.Inventory.GetRezReadySceneObjects(item, out objlist, out veclist);
+            if (!success)
                 return null;
-            
-            if (!Permissions.CanRezObject(group.PrimCount, item.OwnerID, pos))
+
+            int totalPrims = 0;
+            foreach (SceneObjectGroup group in objlist)
+                totalPrims += group.PrimCount;
+
+            if (!Permissions.CanRezObject(totalPrims, item.OwnerID, pos))
                 return null;
 
             if (!Permissions.BypassPermissions())
@@ -2230,23 +2300,28 @@ namespace OpenSim.Region.Framework.Scenes
                     sourcePart.Inventory.RemoveInventoryItem(item.ItemID);
             }
 
-
-            if (group.IsAttachment == false && group.RootPart.Shape.State != 0)
+            for (int i = 0; i < objlist.Count; i++)
             {
-                group.RootPart.AttachedPos = group.AbsolutePosition;
-                group.RootPart.Shape.LastAttachPoint = (byte)group.AttachmentPoint;
+                SceneObjectGroup group = objlist[i];
+                Vector3 curpos = pos + veclist[i];
+
+                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, curpos, rot, vel);
+
+                // We can only call this after adding the scene object, since the scene object references the scene
+                // to find out if scripts should be activated at all.
+                group.CreateScriptInstances(param, true, DefaultScriptEngine, 3);
+
+                group.ScheduleGroupForFullUpdate();
             }
-                                    
-            group.FromPartID = sourcePart.UUID;
-            AddNewSceneObject(group, true, pos, rot, vel);
-            
-            // We can only call this after adding the scene object, since the scene object references the scene
-            // to find out if scripts should be activated at all.
-            group.CreateScriptInstances(param, true, DefaultScriptEngine, 3);
-            
-            group.ScheduleGroupForFullUpdate();
-        
-            return group;
+
+            return objlist;
         }
 
         public virtual bool returnObjects(SceneObjectGroup[] returnobjects,
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index 3f223a3..380e402 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -733,8 +733,8 @@ namespace OpenSim.Region.Framework.Scenes
 
             return items;
         }
-        
-        public SceneObjectGroup GetRezReadySceneObject(TaskInventoryItem item)
+
+        public bool GetRezReadySceneObjects(TaskInventoryItem item, out List<SceneObjectGroup> objlist, out List<Vector3> veclist)
         {
             AssetBase rezAsset = m_part.ParentGroup.Scene.AssetService.Get(item.AssetID.ToString());
 
@@ -743,66 +743,75 @@ namespace OpenSim.Region.Framework.Scenes
                 m_log.WarnFormat(
                     "[PRIM INVENTORY]: Could not find asset {0} for inventory item {1} in {2}", 
                     item.AssetID, item.Name, m_part.Name);
-                return null;
+                objlist = null;
+                veclist = null;
+                return false;
             }
 
-            string xmlData = Utils.BytesToString(rezAsset.Data);
-            SceneObjectGroup group = SceneObjectSerializer.FromOriginalXmlFormat(xmlData);
+            Vector3 bbox;
+            float offsetHeight;
 
-            group.ResetIDs();
+            bool single = m_part.ParentGroup.Scene.GetObjectsToRez(rezAsset.Data, false, out objlist, out veclist, out bbox, out offsetHeight);
 
-            SceneObjectPart rootPart = group.GetPart(group.UUID);
+            for (int i = 0; i < objlist.Count; i++)
+            {
+                SceneObjectGroup group = objlist[i];
 
-            // Since renaming the item in the inventory does not affect the name stored
-            // in the serialization, transfer the correct name from the inventory to the
-            // object itself before we rez.
-            rootPart.Name = item.Name;
-            rootPart.Description = item.Description;
+                group.ResetIDs();
 
-            SceneObjectPart[] partList = group.Parts;
+                SceneObjectPart rootPart = group.GetPart(group.UUID);
 
-            group.SetGroup(m_part.GroupID, null);
+                // Since renaming the item in the inventory does not affect the name stored
+                // in the serialization, transfer the correct name from the inventory to the
+                // object itself before we rez.
+                rootPart.Name = item.Name;
+                rootPart.Description = item.Description;
 
-            // TODO: Remove magic number badness
-            if ((rootPart.OwnerID != item.OwnerID) || (item.CurrentPermissions & 16) != 0 || (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0) // Magic number
-            {
-                if (m_part.ParentGroup.Scene.Permissions.PropagatePermissions())
+                SceneObjectPart[] partList = group.Parts;
+
+                group.SetGroup(m_part.GroupID, null);
+
+                // TODO: Remove magic number badness
+                if ((rootPart.OwnerID != item.OwnerID) || (item.CurrentPermissions & 16) != 0 || (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0) // Magic number
                 {
-                    foreach (SceneObjectPart part in partList)
+                    if (m_part.ParentGroup.Scene.Permissions.PropagatePermissions())
                     {
-                        if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteEveryone) != 0)
-                            part.EveryoneMask = item.EveryonePermissions;
-                        if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteNextOwner) != 0)
-                            part.NextOwnerMask = item.NextPermissions;
-                        if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteGroup) != 0)
-                            part.GroupMask = item.GroupPermissions;
+                        foreach (SceneObjectPart part in partList)
+                        {
+                            if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteEveryone) != 0)
+                                part.EveryoneMask = item.EveryonePermissions;
+                            if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteNextOwner) != 0)
+                                part.NextOwnerMask = item.NextPermissions;
+                            if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteGroup) != 0)
+                                part.GroupMask = item.GroupPermissions;
+                        }
+
+                        group.ApplyNextOwnerPermissions();
                     }
-                    
-                    group.ApplyNextOwnerPermissions();
                 }
-            }
 
-            foreach (SceneObjectPart part in partList)
-            {
-                // TODO: Remove magic number badness
-                if ((part.OwnerID != item.OwnerID) || (item.CurrentPermissions & 16) != 0 || (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0) // Magic number
+                foreach (SceneObjectPart part in partList)
                 {
-                    part.LastOwnerID = part.OwnerID;
-                    part.OwnerID = item.OwnerID;
-                    part.Inventory.ChangeInventoryOwner(item.OwnerID);
+                    // TODO: Remove magic number badness
+                    if ((part.OwnerID != item.OwnerID) || (item.CurrentPermissions & 16) != 0 || (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0) // Magic number
+                    {
+                        part.LastOwnerID = part.OwnerID;
+                        part.OwnerID = item.OwnerID;
+                        part.Inventory.ChangeInventoryOwner(item.OwnerID);
+                    }
+
+                    if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteEveryone) != 0)
+                        part.EveryoneMask = item.EveryonePermissions;
+                    if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteNextOwner) != 0)
+                        part.NextOwnerMask = item.NextPermissions;
+                    if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteGroup) != 0)
+                        part.GroupMask = item.GroupPermissions;
                 }
-                
-                if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteEveryone) != 0)
-                    part.EveryoneMask = item.EveryonePermissions;
-                if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteNextOwner) != 0)
-                    part.NextOwnerMask = item.NextPermissions;
-                if ((item.Flags & (uint)InventoryItemFlags.ObjectOverwriteGroup) != 0)
-                    part.GroupMask = item.GroupPermissions;
+
+                rootPart.TrimPermissions();
             }
-            
-            rootPart.TrimPermissions(); 
-            
-            return group;
+
+            return true;
         }
         
         /// <summary>
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 975bf2d..b19ed0a 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -2970,37 +2970,40 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 // need the magnitude later
                 // float velmag = (float)Util.GetMagnitude(llvel);
 
-                SceneObjectGroup new_group = World.RezObject(m_host, item, pos, rot, vel, param);
+                List<SceneObjectGroup> new_groups = World.RezObject(m_host, item, pos, rot, vel, param);
 
                 // If either of these are null, then there was an unknown error.
-                if (new_group == null)
+                if (new_groups == null)
                     return;
 
-                // objects rezzed with this method are die_at_edge by default.
-                new_group.RootPart.SetDieAtEdge(true);
+                foreach (SceneObjectGroup group in new_groups)
+                {
+                    // objects rezzed with this method are die_at_edge by default.
+                    group.RootPart.SetDieAtEdge(true);
 
-                new_group.ResumeScripts();
+                    group.ResumeScripts();
 
-                m_ScriptEngine.PostObjectEvent(m_host.LocalId, new EventParams(
-                        "object_rez", new Object[] {
-                        new LSL_String(
-                        new_group.RootPart.UUID.ToString()) },
-                        new DetectParams[0]));
+                    m_ScriptEngine.PostObjectEvent(m_host.LocalId, new EventParams(
+                            "object_rez", new Object[] {
+                            new LSL_String(
+                            group.RootPart.UUID.ToString()) },
+                            new DetectParams[0]));
 
-                float groupmass = new_group.GetMass();
+                    float groupmass = group.GetMass();
 
-                PhysicsActor pa = new_group.RootPart.PhysActor;
+                    PhysicsActor pa = group.RootPart.PhysActor;
 
-                //Recoil.
-                if (pa != null && pa.IsPhysical && (Vector3)vel != Vector3.Zero)
-                {
-                    Vector3 recoil = -vel * groupmass * m_recoilScaleFactor;
-                    if (recoil != Vector3.Zero)
+                    //Recoil.
+                    if (pa != null && pa.IsPhysical && (Vector3)vel != Vector3.Zero)
                     {
-                        llApplyImpulse(recoil, 0);
+                        Vector3 recoil = -vel * groupmass * m_recoilScaleFactor;
+                        if (recoil != Vector3.Zero)
+                        {
+                            llApplyImpulse(recoil, 0);
+                        }
                     }
+                    // Variable script delay? (see (http://wiki.secondlife.com/wiki/LSL_Delay)
                 }
-                // Variable script delay? (see (http://wiki.secondlife.com/wiki/LSL_Delay)
             });
 
             //ScriptSleep((int)((groupmass * velmag) / 10));