this is step 2 of 2 of the OpenSim.Region.Environment refactor.

NOTHING has been deleted or moved off to forge at this point.  what
has happened is that OpenSim.Region.Environment.Modules has been split
in two:

- OpenSim.Region.CoreModules: all those modules that are either
  directly or indirectly referenced from  other  OpenSim packages, or
  that provide functionality that the OpenSim developer community
  considers core functionality:

      CoreModules/Agent/AssetTransaction
      CoreModules/Agent/Capabilities
      CoreModules/Agent/TextureDownload
      CoreModules/Agent/TextureSender
      CoreModules/Agent/TextureSender/Tests
      CoreModules/Agent/Xfer
      CoreModules/Avatar/AvatarFactory
      CoreModules/Avatar/Chat/ChatModule
      CoreModules/Avatar/Combat
      CoreModules/Avatar/Currency/SampleMoney
      CoreModules/Avatar/Dialog
      CoreModules/Avatar/Friends
      CoreModules/Avatar/Gestures
      CoreModules/Avatar/Groups
      CoreModules/Avatar/InstantMessage
      CoreModules/Avatar/Inventory
      CoreModules/Avatar/Inventory/Archiver
      CoreModules/Avatar/Inventory/Transfer
      CoreModules/Avatar/Lure
      CoreModules/Avatar/ObjectCaps
      CoreModules/Avatar/Profiles
      CoreModules/Communications/Local
      CoreModules/Communications/REST
      CoreModules/Framework/EventQueue
      CoreModules/Framework/InterfaceCommander
      CoreModules/Hypergrid
      CoreModules/InterGrid
      CoreModules/Scripting/DynamicTexture
      CoreModules/Scripting/EMailModules
      CoreModules/Scripting/HttpRequest
      CoreModules/Scripting/LoadImageURL
      CoreModules/Scripting/VectorRender
      CoreModules/Scripting/WorldComm
      CoreModules/Scripting/XMLRPC
      CoreModules/World/Archiver
      CoreModules/World/Archiver/Tests
      CoreModules/World/Estate
      CoreModules/World/Land
      CoreModules/World/Permissions
      CoreModules/World/Serialiser
      CoreModules/World/Sound
      CoreModules/World/Sun
      CoreModules/World/Terrain
      CoreModules/World/Terrain/DefaultEffects
      CoreModules/World/Terrain/DefaultEffects/bin
      CoreModules/World/Terrain/DefaultEffects/bin/Debug
      CoreModules/World/Terrain/Effects
      CoreModules/World/Terrain/FileLoaders
      CoreModules/World/Terrain/FloodBrushes
      CoreModules/World/Terrain/PaintBrushes
      CoreModules/World/Terrain/Tests
      CoreModules/World/Vegetation
      CoreModules/World/Wind
      CoreModules/World/WorldMap

- OpenSim.Region.OptionalModules: all those modules that are not core
  modules:

      OptionalModules/Avatar/Chat/IRC-stuff
      OptionalModules/Avatar/Concierge
      OptionalModules/Avatar/Voice/AsterixVoice
      OptionalModules/Avatar/Voice/SIPVoice
      OptionalModules/ContentManagementSystem
      OptionalModules/Grid/Interregion
      OptionalModules/Python
      OptionalModules/SvnSerialiser
      OptionalModules/World/NPC
      OptionalModules/World/TreePopulator

1 files changed, 274 insertions, 0 deletions

diff --git a/OpenSim/Region/OptionalModules/ContentManagementSystem/MetaEntity.cs b/OpenSim/Region/OptionalModules/ContentManagementSystem/MetaEntity.cs
new file mode 100644
index 0000000..63c74e1
--- /dev/null
+++ b/OpenSim/Region/OptionalModules/ContentManagementSystem/MetaEntity.cs
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSim Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#region Header
+
+// MetaEntity.cs
+// User: bongiojp
+//
+// TODO:
+//    Create a physics manager to the meta object if there isn't one or the object knows of no scene but the user wants physics enabled.
+
+#endregion Header
+
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+
+using OpenMetaverse;
+
+using Nini.Config;
+
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Physics.Manager;
+
+using log4net;
+
+namespace OpenSim.Region.OptionalModules.ContentManagement
+{
+    public class MetaEntity
+    {
+        #region Constants
+
+        public const float INVISIBLE = .95f;
+
+        // Settings for transparency of metaentity
+        public const float NONE = 0f;
+        public const float TRANSLUCENT = .5f;
+
+        #endregion Constants
+
+        #region Static Fields
+
+        protected static readonly ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
+
+        #endregion Static Fields
+
+        #region Fields
+
+        protected SceneObjectGroup m_Entity = null; // The scene object group that represents this meta entity.
+        protected uint m_metaLocalid;
+
+        #endregion Fields
+
+        #region Constructors
+
+        public MetaEntity()
+        {
+        }
+
+        /// <summary>
+        /// Makes a new meta entity by copying the given scene object group.
+        /// The physics boolean is just a stub right now.
+        /// </summary>
+        public MetaEntity(SceneObjectGroup orig, bool physics)
+        {
+            m_Entity = orig.Copy(orig.RootPart.OwnerID, orig.RootPart.GroupID, false);
+            Initialize(physics);
+        }
+
+        /// <summary>
+        /// Takes an XML description of a scene object group and converts it to a meta entity.
+        /// </summary>
+        public MetaEntity(string objectXML, Scene scene, bool physics)
+        {
+            m_Entity = new SceneObjectGroup(objectXML);
+            m_Entity.SetScene(scene);
+            Initialize(physics);
+        }
+
+        #endregion Constructors
+
+        #region Public Properties
+
+        public Dictionary<UUID, SceneObjectPart> Children
+        {
+            get { return m_Entity.Children; }
+            set { m_Entity.Children = value; }
+        }
+
+        public uint LocalId
+        {
+            get { return m_Entity.LocalId; }
+            set { m_Entity.LocalId = value; }
+        }
+
+        public SceneObjectGroup ObjectGroup
+        {
+            get { return m_Entity; }
+        }
+
+        public int PrimCount
+        {
+            get { return m_Entity.PrimCount; }
+        }
+
+        public SceneObjectPart RootPart
+        {
+            get { return m_Entity.RootPart; }
+        }
+
+        public Scene Scene
+        {
+            get { return m_Entity.Scene; }
+        }
+
+        public UUID UUID
+        {
+            get { return m_Entity.UUID; }
+            set { m_Entity.UUID = value; }
+        }
+
+        #endregion Public Properties
+
+        #region Protected Methods
+
+        // The metaentity objectgroup must have unique localids as well as unique uuids.
+        // localids are used by the client to refer to parts.
+        // uuids are sent to the client and back to the server to identify parts on the server side.
+        /// <summary>
+        /// Changes localids and uuids of m_Entity.
+        /// </summary>
+        protected void Initialize(bool physics)
+        {
+            //make new uuids
+            Dictionary<UUID, SceneObjectPart> parts = new Dictionary<UUID, SceneObjectPart>();
+            foreach (SceneObjectPart part in m_Entity.Children.Values)
+            {
+                part.ResetIDs(part.LinkNum);
+                parts.Add(part.UUID, part);
+            }
+
+            //finalize
+            m_Entity.RootPart.PhysActor = null;
+            m_Entity.Children = parts;
+        }
+
+        #endregion Protected Methods
+
+        #region Public Methods
+
+        /// <summary>
+        /// Hides the metaentity from a single client.
+        /// </summary>
+        public virtual void Hide(IClientAPI client)
+        {
+            //This deletes the group without removing from any databases.
+            //This is important because we are not IN any database.
+            //m_Entity.FakeDeleteGroup();
+            foreach (SceneObjectPart part in m_Entity.Children.Values)
+                client.SendKillObject(m_Entity.RegionHandle, part.LocalId);
+        }
+
+        /// <summary>
+        /// Sends a kill object message to all clients, effectively "hiding" the metaentity even though it's still on the server.
+        /// </summary>
+        public virtual void HideFromAll()
+        {
+            foreach (SceneObjectPart part in m_Entity.Children.Values)
+                m_Entity.Scene.ClientManager.ForEachClient(delegate(IClientAPI controller)
+                                                           { controller.SendKillObject(m_Entity.RegionHandle, part.LocalId); }
+                );
+        }
+
+        public void SendFullUpdate(IClientAPI client)
+        {
+            // Not sure what clientFlags should be but 0 seems to work
+            SendFullUpdate(client, 0);
+        }
+
+        public void SendFullUpdate(IClientAPI client, uint clientFlags)
+        {
+            m_Entity.SendFullUpdateToClient(client);
+        }
+
+        public void SendFullUpdateToAll()
+        {
+            m_Entity.Scene.ClientManager.ForEachClient(delegate(IClientAPI controller)
+                                                       { m_Entity.SendFullUpdateToClient(controller); }
+            );
+        }
+
+        /// <summary>
+        /// Makes a single SceneObjectPart see through.
+        /// </summary>
+        /// <param name="part">
+        /// A <see cref="SceneObjectPart"/>
+        /// The part to make see through
+        /// </param>
+        /// <param name="transparencyAmount">
+        /// A <see cref="System.Single"/>
+        /// The degree of transparency to imbue the part with, 0f being solid and .95f being invisible.
+        /// </param>
+        public static void SetPartTransparency(SceneObjectPart part, float transparencyAmount)
+        {
+            Primitive.TextureEntry tex = null;
+            Color4 texcolor;
+            try
+            {
+                tex = part.Shape.Textures;
+                texcolor = new Color4();
+            }
+            catch(Exception)
+            {
+                //m_log.ErrorFormat("[Content Management]: Exception thrown while accessing textures of scene object: " + e);
+                return;
+            }
+
+            for (uint i = 0; i < tex.FaceTextures.Length; i++)
+            {
+                try {
+                    if (tex.FaceTextures[i] != null)
+                    {
+                        texcolor = tex.FaceTextures[i].RGBA;
+                        texcolor.A = transparencyAmount;
+                        tex.FaceTextures[i].RGBA = texcolor;
+                    }
+                }
+                catch (Exception)
+                {
+                    //m_log.ErrorFormat("[Content Management]: Exception thrown while accessing different face textures of object: " + e);
+                    continue;
+                }
+            }
+            try {
+                texcolor = tex.DefaultTexture.RGBA;
+                texcolor.A = transparencyAmount;
+                tex.DefaultTexture.RGBA = texcolor;
+                part.Shape.TextureEntry = tex.ToBytes();
+            }
+            catch (Exception)
+            {
+                //m_log.Info("[Content Management]: Exception thrown while accessing default face texture of object: " + e);
+            }
+        }
+
+        #endregion Public Methods
+    }
+}