13 files changed, 485 insertions, 307 deletions

diff --git a/OpenSim/Framework/Servers/BaseOpenSimServer.cs b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
index a8f3a9e..605909d 100644
--- a/OpenSim/Framework/Servers/BaseOpenSimServer.cs
+++ b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
@@ -192,8 +192,19 @@ namespace OpenSim.Framework.Servers
                         "threads show",
                         "Show thread status.  Synonym for \"show threads\"",
                         (string module, string[] args) => Notice(GetThreadsReport()));
+
+                m_console.Commands.AddCommand("General", false, "force gc",
+                        "force gc",
+                        "Manually invoke runtime garbage collection.  For debugging purposes",
+                        HandleForceGc);
             }
         }
+
+        private void HandleForceGc(string module, string[] args)
+        {
+            MainConsole.Instance.Output("Manually invoking runtime garbage collection");
+            GC.Collect();
+        }
         
         /// <summary>
         /// Should be overriden and referenced by descendents if they need to perform extra shutdown processing
diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 74551ea..e76a37b 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -548,7 +548,7 @@ namespace OpenSim.Framework
         /// <summary>
         /// Determines whether a point is inside a bounding box.
         /// </summary>
-        /// <param name='v'>/param>
+        /// <param name='v'></param>
         /// <param name='min'></param>
         /// <param name='max'></param>
         /// <returns></returns>
diff --git a/OpenSim/Region/Application/OpenSim.cs b/OpenSim/Region/Application/OpenSim.cs
index 3d4dce1..5f07272 100644
--- a/OpenSim/Region/Application/OpenSim.cs
+++ b/OpenSim/Region/Application/OpenSim.cs
@@ -1111,7 +1111,7 @@ namespace OpenSim
                             aCircuit.Name,
                             aCircuit.child ? "child" : "root",
                             aCircuit.circuitcode.ToString(),
-                            aCircuit.IPAddress.ToString(),
+                            aCircuit.IPAddress != null ? aCircuit.IPAddress.ToString() : "not set",
                             aCircuit.Viewer);
                 });
 
diff --git a/OpenSim/Region/CoreModules/World/Sound/SoundModule.cs b/OpenSim/Region/CoreModules/World/Sound/SoundModule.cs
index a2f0950..513a8f5 100644
--- a/OpenSim/Region/CoreModules/World/Sound/SoundModule.cs
+++ b/OpenSim/Region/CoreModules/World/Sound/SoundModule.cs
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) Contributors, http://opensimulator.org/
  * See CONTRIBUTORS.TXT for a full list of copyright holders.
  *
@@ -24,56 +24,110 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
 using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Reflection;
+
 using Nini.Config;
 using OpenMetaverse;
+using log4net;
+using Mono.Addins;
+
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
-using System.Reflection;
-using log4net;
 
 namespace OpenSim.Region.CoreModules.World.Sound
 {
-    public class SoundModule : IRegionModule, ISoundModule
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "SoundModule")]
+    public class SoundModule : INonSharedRegionModule, ISoundModule
     {
-//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
-        
-        protected Scene m_scene;
-        
-        public void Initialise(Scene scene, IConfigSource source)
+        private static readonly ILog m_log = LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private Scene m_scene;
+
+        public bool Enabled { get; private set; }
+
+        public float MaxDistance { get; private set; }
+
+        #region INonSharedRegionModule
+
+        public void Initialise(IConfigSource configSource)
+        {
+            IConfig config = configSource.Configs["Sounds"];
+
+            if (config == null)
+            {
+                Enabled = true;
+                MaxDistance = 100.0f;
+            }
+            else
+            {
+                Enabled = config.GetString("Module", "OpenSim.Region.CoreModules.dll:SoundModule") ==
+                        Path.GetFileName(Assembly.GetExecutingAssembly().Location)
+                        + ":" + MethodBase.GetCurrentMethod().DeclaringType.Name;
+                MaxDistance = config.GetFloat("MaxDistance", 100.0f);
+            }
+        }
+
+        public void AddRegion(Scene scene) { }
+
+        public void RemoveRegion(Scene scene)
         {
+            m_scene.EventManager.OnClientLogin -= OnNewClient;
+        }
+
+        public void RegionLoaded(Scene scene)
+        {
+            if (!Enabled)
+                return;
+
             m_scene = scene;
-            
-            m_scene.EventManager.OnNewClient += OnNewClient;
-            
+            m_scene.EventManager.OnClientLogin += OnNewClient;
+
             m_scene.RegisterModuleInterface<ISoundModule>(this);
         }
-        
-        public void PostInitialise() {}
-        public void Close() {}
+
+        public void Close() { }
+
+        public Type ReplaceableInterface
+        {
+            get { return typeof(ISoundModule); }
+        }
+
         public string Name { get { return "Sound Module"; } }
-        public bool IsSharedModule { get { return false; } }
-        
+
+        #endregion
+
+        #region Event Handlers
+
         private void OnNewClient(IClientAPI client)
         {
             client.OnSoundTrigger += TriggerSound;
         }
-        
+
+        #endregion
+
+        #region ISoundModule
+
         public virtual void PlayAttachedSound(
             UUID soundID, UUID ownerID, UUID objectID, double gain, Vector3 position, byte flags, float radius)
         {
-            SceneObjectPart part = m_scene.GetSceneObjectPart(objectID);
-            if (part == null)
+            SceneObjectPart part;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out part))
                 return;
 
             SceneObjectGroup grp = part.ParentGroup;
 
+            if (radius == 0)
+                radius = MaxDistance;
+
             m_scene.ForEachRootScenePresence(delegate(ScenePresence sp)
             {
                 double dis = Util.GetDistanceTo(sp.AbsolutePosition, position);
-                if (dis > 100.0) // Max audio distance
+                if (dis > MaxDistance) // Max audio distance
                     return;
 
                 if (grp.IsAttachment)
@@ -85,26 +139,22 @@ namespace OpenSim.Region.CoreModules.World.Sound
                         dis = 0;
                 }
 
-                float thisSpGain;
-
                 // Scale by distance
-                if (radius == 0)
-                    thisSpGain = (float)((double)gain * ((100.0 - dis) / 100.0));
-                else
-                    thisSpGain = (float)((double)gain * ((radius - dis) / radius));
+                double thisSpGain = gain * ((radius - dis) / radius);
 
-                sp.ControllingClient.SendPlayAttachedSound(soundID, objectID, ownerID, thisSpGain, flags);
+                sp.ControllingClient.SendPlayAttachedSound(soundID, objectID,
+                        ownerID, (float)thisSpGain, flags);
             });
         }
-        
+
         public virtual void TriggerSound(
             UUID soundId, UUID ownerID, UUID objectID, UUID parentID, double gain, Vector3 position, UInt64 handle, float radius)
         {
-            SceneObjectPart part = m_scene.GetSceneObjectPart(objectID);
-            if (part == null)
+            SceneObjectPart part;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out part))
             {
                 ScenePresence sp;
-                if (!m_scene.TryGetScenePresence(objectID, out sp))
+                if (!m_scene.TryGetScenePresence(ownerID, out sp))
                     return;
             }
             else
@@ -118,24 +168,207 @@ namespace OpenSim.Region.CoreModules.World.Sound
                 }
             }
 
+            if (radius == 0)
+                radius = MaxDistance;
+
             m_scene.ForEachRootScenePresence(delegate(ScenePresence sp)
             {
                 double dis = Util.GetDistanceTo(sp.AbsolutePosition, position);
 
-                if (dis > 100.0) // Max audio distance
+                if (dis > MaxDistance) // Max audio distance
                     return;
 
-                float thisSpGain;
-
                 // Scale by distance
-                if (radius == 0)
-                    thisSpGain = (float)((double)gain * ((100.0 - dis) / 100.0));
+                double thisSpGain = gain * ((radius - dis) / radius);
+
+                sp.ControllingClient.SendTriggeredSound(soundId, ownerID,
+                        objectID, parentID, handle, position,
+                        (float)thisSpGain);
+            });
+        }
+
+        public virtual void StopSound(UUID objectID)
+        {
+            SceneObjectPart m_host;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out m_host))
+                return;
+
+            StopSound(m_host);
+        }
+
+        private static void StopSound(SceneObjectPart m_host)
+        {
+            m_host.AdjustSoundGain(0);
+            // Xantor 20080528: Clear prim data of sound instead
+            if (m_host.ParentGroup.LoopSoundSlavePrims.Contains(m_host))
+            {
+                if (m_host.ParentGroup.LoopSoundMasterPrim == m_host)
+                {
+                    foreach (SceneObjectPart part in m_host.ParentGroup.LoopSoundSlavePrims)
+                    {
+                        part.Sound = UUID.Zero;
+                        part.SoundFlags = 1 << 5;
+                        part.SoundRadius = 0;
+                        part.ScheduleFullUpdate();
+                        part.SendFullUpdateToAllClients();
+                    }
+                    m_host.ParentGroup.LoopSoundMasterPrim = null;
+                    m_host.ParentGroup.LoopSoundSlavePrims.Clear();
+                }
                 else
-                    thisSpGain = (float)((double)gain * ((radius - dis) / radius));
+                {
+                    m_host.Sound = UUID.Zero;
+                    m_host.SoundFlags = 1 << 5;
+                    m_host.SoundRadius = 0;
+                    m_host.ScheduleFullUpdate();
+                    m_host.SendFullUpdateToAllClients();
+                }
+            }
+            else
+            {
+                m_host.Sound = UUID.Zero;
+                m_host.SoundFlags = 1 << 5;
+                m_host.SoundRadius = 0;
+                m_host.ScheduleFullUpdate();
+                m_host.SendFullUpdateToAllClients();
+            }
+        }
 
-                sp.ControllingClient.SendTriggeredSound(
-                    soundId, ownerID, objectID, parentID, handle, position, thisSpGain);
+        public virtual void PreloadSound(UUID objectID, UUID soundID, float radius)
+        {
+            SceneObjectPart part;
+            if (soundID == UUID.Zero
+                    || !m_scene.TryGetSceneObjectPart(objectID, out part))
+            {
+                return;
+            }
+
+            if (radius == 0)
+                radius = MaxDistance;
+
+            m_scene.ForEachRootScenePresence(delegate(ScenePresence sp)
+            {
+                if (!(Util.GetDistanceTo(sp.AbsolutePosition, part.AbsolutePosition) >= MaxDistance))
+                    sp.ControllingClient.SendPreLoadSound(objectID, objectID, soundID);
             });
         }
+
+        // Xantor 20080528 we should do this differently.
+        // 1) apply the sound to the object
+        // 2) schedule full update
+        // just sending the sound out once doesn't work so well when other avatars come in view later on
+        // or when the prim gets moved, changed, sat on, whatever
+        // see large number of mantises (mantes?)
+        // 20080530 Updated to remove code duplication
+        // 20080530 Stop sound if there is one, otherwise volume only changes don't work
+        public void LoopSound(UUID objectID, UUID soundID,
+                double volume, double radius, bool isMaster)
+        {
+            SceneObjectPart m_host;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out m_host))
+                return;
+
+            if (isMaster)
+                m_host.ParentGroup.LoopSoundMasterPrim = m_host;
+
+            if (m_host.Sound != UUID.Zero)
+                StopSound(m_host);
+
+            m_host.Sound = soundID;
+            m_host.SoundGain = volume;
+            m_host.SoundFlags = 1;      // looping
+            m_host.SoundRadius = radius;
+
+            m_host.ScheduleFullUpdate();
+            m_host.SendFullUpdateToAllClients();
+        }
+
+        public void SendSound(UUID objectID, UUID soundID, double volume,
+                bool triggered, byte flags, float radius, bool useMaster,
+                bool isMaster)
+        {
+            if (soundID == UUID.Zero)
+                return;
+
+            SceneObjectPart part;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out part))
+                return;
+
+            volume = Util.Clip((float)volume, 0, 1);
+
+            UUID parentID = part.ParentGroup.UUID;
+
+            Vector3 position = part.AbsolutePosition; // region local
+            ulong regionHandle = m_scene.RegionInfo.RegionHandle;
+
+            if (useMaster)
+            {
+                if (isMaster)
+                {
+                    if (triggered)
+                        TriggerSound(soundID, part.OwnerID, part.UUID, parentID, volume, position, regionHandle, radius);
+                    else
+                        PlayAttachedSound(soundID, part.OwnerID, part.UUID, volume, position, flags, radius);
+                    part.ParentGroup.PlaySoundMasterPrim = part;
+                    if (triggered)
+                        TriggerSound(soundID, part.OwnerID, part.UUID, parentID, volume, position, regionHandle, radius);
+                    else
+                        PlayAttachedSound(soundID, part.OwnerID, part.UUID, volume, position, flags, radius);
+                    foreach (SceneObjectPart prim in part.ParentGroup.PlaySoundSlavePrims)
+                    {
+                        position = prim.AbsolutePosition; // region local
+                        if (triggered)
+                            TriggerSound(soundID, part.OwnerID, prim.UUID, parentID, volume, position, regionHandle, radius);
+                        else
+                            PlayAttachedSound(soundID, part.OwnerID, prim.UUID, volume, position, flags, radius);
+                    }
+                    part.ParentGroup.PlaySoundSlavePrims.Clear();
+                    part.ParentGroup.PlaySoundMasterPrim = null;
+                }
+                else
+                {
+                    part.ParentGroup.PlaySoundSlavePrims.Add(part);
+                }
+            }
+            else
+            {
+                if (triggered)
+                    TriggerSound(soundID, part.OwnerID, part.UUID, parentID, volume, position, regionHandle, radius);
+                else
+                    PlayAttachedSound(soundID, part.OwnerID, part.UUID, volume, position, flags, radius);
+            }
+        }
+
+        public void TriggerSoundLimited(UUID objectID, UUID sound,
+                double volume, Vector3 min, Vector3 max)
+        {
+            if (sound == UUID.Zero)
+                return;
+
+            SceneObjectPart part;
+            if (!m_scene.TryGetSceneObjectPart(objectID, out part))
+                return;
+
+            m_scene.ForEachRootScenePresence(delegate(ScenePresence sp)
+            {
+                double dis = Util.GetDistanceTo(sp.AbsolutePosition,
+                        part.AbsolutePosition);
+
+                if (dis > MaxDistance) // Max audio distance
+                    return;
+                else if (!Util.IsInsideBox(sp.AbsolutePosition, min, max))
+                    return;
+
+                // Scale by distance
+                double thisSpGain = volume * ((MaxDistance - dis) / MaxDistance);
+
+                sp.ControllingClient.SendTriggeredSound(sound, part.OwnerID,
+                        part.UUID, part.ParentGroup.UUID,
+                        m_scene.RegionInfo.RegionHandle,
+                        part.AbsolutePosition, (float)thisSpGain);
+            });
+        }
+
+        #endregion
     }
 }
diff --git a/OpenSim/Region/Framework/Interfaces/ISoundModule.cs b/OpenSim/Region/Framework/Interfaces/ISoundModule.cs
index 6117a80..68af492 100644
--- a/OpenSim/Region/Framework/Interfaces/ISoundModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/ISoundModule.cs
@@ -32,9 +32,96 @@ namespace OpenSim.Region.Framework.Interfaces
 {
     public interface ISoundModule
     {
-        void PlayAttachedSound(UUID soundID, UUID ownerID, UUID objectID, double gain, Vector3 position, byte flags, float radius);
-        
+        /// <summary>
+        /// Maximum distance between a sound source and a recipient.
+        /// </summary>
+        float MaxDistance { get; }
+
+        /// <summary>
+        /// Play a sound from an object.
+        /// </summary>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="ownerID">Sound source owner</param>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="position">Sound source position</param>
+        /// <param name="flags">Sound flags</param>
+        /// <param name="radius">
+        /// Radius used to affect gain over distance.
+        /// </param>
+        void PlayAttachedSound(UUID soundID, UUID ownerID, UUID objectID,
+                double gain, Vector3 position, byte flags, float radius);
+
+        /// <summary>
+        /// Trigger a sound in the scene.
+        /// </summary>
+        /// <param name="soundId">Sound asset ID</param>
+        /// <param name="ownerID">Sound source owner</param>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="parentID">Sound source parent.</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="position">Sound source position</param>
+        /// <param name="handle"></param>
+        /// <param name="radius">
+        /// Radius used to affect gain over distance.
+        /// </param>
         void TriggerSound(
-            UUID soundId, UUID ownerID, UUID objectID, UUID parentID, double gain, Vector3 position, UInt64 handle, float radius);
+                UUID soundId, UUID ownerID, UUID objectID, UUID parentID,
+                double gain, Vector3 position, UInt64 handle, float radius);
+
+        /// <summary>
+        /// Stop sounds eminating from an object.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        void StopSound(UUID objectID);
+
+        /// <summary>
+        /// Preload sound to viewers within range.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="radius">
+        /// Radius used to determine which viewers should preload the sound.
+        /// </param>
+        void PreloadSound(UUID objectID, UUID soundID, float radius);
+
+        /// <summary>
+        /// Loop specified sound at specified volume with specified radius,
+        /// optionally declaring object as new sync master.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="radius">Sound radius</param>
+        /// <param name="isMaster">Set object to sync master if true</param>
+        void LoopSound(UUID objectID, UUID soundID, double gain,
+                double radius, bool isMaster);
+
+        /// <summary>
+        /// Trigger or play an attached sound in this part's inventory.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="sound">Sound asset ID</param>
+        /// <param name="volume">Sound volume</param>
+        /// <param name="triggered">Triggered or not.</param>
+        /// <param name="flags"></param>
+        /// <param name="radius">Sound radius</param>
+        /// <param name="useMaster">Play using sound master</param>
+        /// <param name="isMaster">Play as sound master</param>
+        void SendSound(UUID objectID, UUID sound, double volume,
+                bool triggered, byte flags, float radius, bool useMaster,
+                bool isMaster);
+
+        /// <summary>
+        /// Trigger a sound to be played to all agents within an axis-aligned
+        /// bounding box.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="sound">Sound asset ID</param>
+        /// <param name="volume">Sound volume</param>
+        /// <param name="min">AABB bottom south-west corner</param>
+        /// <param name="max">AABB top north-east corner</param>
+        void TriggerSoundLimited(UUID objectID, UUID sound, double volume,
+                Vector3 min, Vector3 max);
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 9f87e1e..2066536 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -3552,9 +3552,10 @@ namespace OpenSim.Region.Framework.Scenes
                 }
                 else
                 {
-                    // We remove the acd up here to avoid later raec conditions if two RemoveClient() calls occurred
+                    // We remove the acd up here to avoid later race conditions if two RemoveClient() calls occurred
                     // simultaneously.
-                    m_authenticateHandler.RemoveCircuit(acd.circuitcode);
+                    // We also need to remove by agent ID since NPCs will have no circuit code.
+                    m_authenticateHandler.RemoveCircuit(agentID);
                 }
             }
 
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index 248679b..b7f4291 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -2895,38 +2895,6 @@ namespace OpenSim.Region.Framework.Scenes
             ScheduleTerseUpdate();
         }
 
-        public void PreloadSound(string sound)
-        {
-            // UUID ownerID = OwnerID;
-            UUID objectID = ParentGroup.RootPart.UUID;
-            UUID soundID = UUID.Zero;
-
-            if (!UUID.TryParse(sound, out soundID))
-            {
-                //Trys to fetch sound id from prim's inventory.
-                //Prim's inventory doesn't support non script items yet
-                
-                TaskInventory.LockItemsForRead(true);
-
-                foreach (KeyValuePair<UUID, TaskInventoryItem> item in TaskInventory)
-                {
-                    if (item.Value.Name == sound)
-                    {
-                        soundID = item.Value.ItemID;
-                        break;
-                    }
-                }
-
-                TaskInventory.LockItemsForRead(false);
-            }
-
-            ParentGroup.Scene.ForEachRootScenePresence(delegate(ScenePresence sp)
-            {
-                if (!(Util.GetDistanceTo(sp.AbsolutePosition, AbsolutePosition) >= 100))
-                    sp.ControllingClient.SendPreLoadSound(objectID, objectID, soundID);
-            });
-        }
-
         public void RemFlag(PrimFlags flag)
         {
             // PrimFlags prevflag = Flags;
@@ -3298,126 +3266,6 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
-        /// Trigger or play an attached sound in this part's inventory.
-        /// </summary>
-        /// <param name="sound"></param>
-        /// <param name="volume"></param>
-        /// <param name="triggered"></param>
-        /// <param name="flags"></param>
-        public void SendSound(string sound, double volume, bool triggered, byte flags, float radius, bool useMaster, bool isMaster)
-        {
-            if (volume > 1)
-                volume = 1;
-            if (volume < 0)
-                volume = 0;
-
-            UUID ownerID = OwnerID;
-            UUID objectID = ParentGroup.RootPart.UUID;
-            UUID parentID = ParentGroup.UUID;
-
-            UUID soundID = UUID.Zero;
-            Vector3 position = AbsolutePosition; // region local
-            ulong regionHandle = ParentGroup.Scene.RegionInfo.RegionHandle;
-
-            if (!UUID.TryParse(sound, out soundID))
-            {
-                // search sound file from inventory
-                TaskInventory.LockItemsForRead(true);
-                foreach (KeyValuePair<UUID, TaskInventoryItem> item in TaskInventory)
-                {
-                    if (item.Value.Name == sound && item.Value.Type == (int)AssetType.Sound)
-                    {
-                        soundID = item.Value.ItemID;
-                        break;
-                    }
-                }
-                TaskInventory.LockItemsForRead(false);
-            }
-
-            if (soundID == UUID.Zero)
-                return;
-
-            ISoundModule soundModule = ParentGroup.Scene.RequestModuleInterface<ISoundModule>();
-            if (soundModule != null)
-            {
-                if (useMaster)
-                {
-                    if (isMaster)
-                    {
-                        if (triggered)
-                            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, radius);
-                        else
-                            soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);
-                        ParentGroup.PlaySoundMasterPrim = this;
-                        ownerID = OwnerID;
-                        objectID = ParentGroup.RootPart.UUID;
-                        parentID = ParentGroup.UUID;
-                        position = AbsolutePosition; // region local
-                        regionHandle = ParentGroup.Scene.RegionInfo.RegionHandle;
-                        if (triggered)
-                            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, radius);
-                        else
-                            soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);
-                        foreach (SceneObjectPart prim in ParentGroup.PlaySoundSlavePrims)
-                        {
-                            ownerID = prim.OwnerID;
-                            objectID = prim.ParentGroup.RootPart.UUID;
-                            parentID = prim.ParentGroup.UUID;
-                            position = prim.AbsolutePosition; // region local
-                            regionHandle = prim.ParentGroup.Scene.RegionInfo.RegionHandle;
-                            if (triggered)
-                                soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, radius);
-                            else
-                                soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);
-                        }
-                        ParentGroup.PlaySoundSlavePrims.Clear();
-                        ParentGroup.PlaySoundMasterPrim = null;
-                    }
-                    else
-                    {
-                        ParentGroup.PlaySoundSlavePrims.Add(this);
-                    }
-                }
-                else
-                {
-                    if (triggered)
-                        soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, radius);
-                    else
-                        soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);
-                }
-            }
-        }
-
-        public void SendCollisionSound(UUID soundID, double volume, Vector3 position)
-        {
-            if (soundID == UUID.Zero)
-                return;
-
-            ISoundModule soundModule = ParentGroup.Scene.RequestModuleInterface<ISoundModule>();
-            if (soundModule == null)
-                return;
-
-            if (volume > 1)
-                volume = 1;
-            if (volume < 0)
-                volume = 0;
-
-            int now = Util.EnvironmentTickCount();
-            if(Util.EnvironmentTickCountSubtract(now,LastColSoundSentTime) <200)
-                return;
-
-            LastColSoundSentTime = now;
-
-            UUID ownerID = OwnerID;
-            UUID objectID = ParentGroup.RootPart.UUID;
-            UUID parentID = ParentGroup.UUID;
-            ulong regionHandle = ParentGroup.Scene.RegionInfo.RegionHandle;
-
-            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle, 0 );
-        }
-
-
-        /// <summary>
         /// Send a terse update to all clients
         /// </summary>
         public void SendTerseUpdateToAllClients()
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 870bd66..285d1ae 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -75,8 +75,9 @@ namespace OpenSim.Region.Framework.Scenes
     {
 //        ~ScenePresence()
 //        {
-//            m_log.Debug("[SCENE PRESENCE] Destructor called");
+//            m_log.DebugFormat("[SCENE PRESENCE]: Destructor called on {0}", Name);
 //        }
+
         private void TriggerScenePresenceUpdated()
         {
             if (m_scene != null)
diff --git a/OpenSim/Region/OptionalModules/Scripting/Minimodule/SOPObject.cs b/OpenSim/Region/OptionalModules/Scripting/Minimodule/SOPObject.cs
index aa23fee..5ed1514 100644
--- a/OpenSim/Region/OptionalModules/Scripting/Minimodule/SOPObject.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/Minimodule/SOPObject.cs
@@ -821,8 +821,11 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
         {
             if (!CanEdit())
                 return;
-
-            GetSOP().SendSound(asset.ToString(), volume, true, 0, 0, false, false);
+            ISoundModule module = m_rootScene.RequestModuleInterface<ISoundModule>();
+            if (module != null)
+            {
+                module.SendSound(GetSOP().UUID, asset, volume, true, 0, 0, false, false);
+            }
         }
 
         #endregion
diff --git a/OpenSim/Region/OptionalModules/World/NPC/Tests/NPCModuleTests.cs b/OpenSim/Region/OptionalModules/World/NPC/Tests/NPCModuleTests.cs
index 9179966..52ed846 100644
--- a/OpenSim/Region/OptionalModules/World/NPC/Tests/NPCModuleTests.cs
+++ b/OpenSim/Region/OptionalModules/World/NPC/Tests/NPCModuleTests.cs
@@ -117,6 +117,12 @@ namespace OpenSim.Region.OptionalModules.World.NPC.Tests
             Assert.That(npc, Is.Not.Null);
             Assert.That(npc.Appearance.Texture.FaceTextures[8].TextureID, Is.EqualTo(originalFace8TextureId));
             Assert.That(m_umMod.GetUserName(npc.UUID), Is.EqualTo(string.Format("{0} {1}", npc.Firstname, npc.Lastname)));
+
+            IClientAPI client;
+            Assert.That(m_scene.TryGetClient(npcId, out client), Is.True);
+
+            // Have to account for both SP and NPC.
+            Assert.That(m_scene.AuthenticateHandler.GetAgentCircuits().Count, Is.EqualTo(2));
         }
 
         [Test]
@@ -136,6 +142,11 @@ namespace OpenSim.Region.OptionalModules.World.NPC.Tests
             ScenePresence deletedNpc = m_scene.GetScenePresence(npcId);
 
             Assert.That(deletedNpc, Is.Null);
+            IClientAPI client;
+            Assert.That(m_scene.TryGetClient(npcId, out client), Is.False);
+
+            // Have to account for SP still present.
+            Assert.That(m_scene.AuthenticateHandler.GetAgentCircuits().Count, Is.EqualTo(1));
         }
 
         [Test]
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index 0551c0b..b5beffc 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -3341,7 +3341,6 @@ Console.WriteLine(" JointCreateFixed");
             m_material = pMaterial;
         }
 
-
         private void CheckMeshAsset()
         {
             if (_pbs.SculptEntry && !m_assetFailed && _pbs.SculptTexture != UUID.Zero)
@@ -3351,12 +3350,12 @@ Console.WriteLine(" JointCreateFixed");
                     {
                         RequestAssetDelegate assetProvider = _parent_scene.RequestAssetMethod;
                         if (assetProvider != null)
-                            assetProvider(_pbs.SculptTexture, MeshAssetReveived);
+                            assetProvider(_pbs.SculptTexture, MeshAssetReceived);
                     });
             }
         }
 
-        void MeshAssetReveived(AssetBase asset)
+        private void MeshAssetReceived(AssetBase asset)
         {
             if (asset.Data != null && asset.Data.Length > 0)
             {
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 9011966..3bbdbe8 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -113,6 +113,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         protected Dictionary<UUID, UserInfoCacheEntry> m_userInfoCache =
                 new Dictionary<UUID, UserInfoCacheEntry>();
             protected int EMAIL_PAUSE_TIME = 20;  // documented delay value for smtp.
+        protected ISoundModule m_SoundModule = null;
 
 //        protected Timer m_ShoutSayTimer;
         protected int m_SayShoutCount = 0;
@@ -160,6 +161,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_TransferModule =
                     m_ScriptEngine.World.RequestModuleInterface<IMessageTransferModule>();
             m_UrlModule = m_ScriptEngine.World.RequestModuleInterface<IUrlModule>();
+            m_SoundModule = m_ScriptEngine.World.RequestModuleInterface<ISoundModule>();
 
             AsyncCommands = new AsyncCommandManager(ScriptEngine);
         }
@@ -427,6 +429,42 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return key;
         }
 
+        /// <summary>
+        /// Return the UUID of the asset matching the specified key or name
+        /// and asset type.
+        /// </summary>
+        /// <param name="k"></param>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        protected UUID KeyOrName(string k, AssetType type)
+        {
+            UUID key;
+
+            if (!UUID.TryParse(k, out key))
+            {
+                TaskInventoryItem item = m_host.Inventory.GetInventoryItem(k);
+                if (item != null && item.Type == (int)type)
+                    key = item.AssetID;
+            }
+            else
+            {
+                lock (m_host.TaskInventory)
+                {
+                    foreach (KeyValuePair<UUID, TaskInventoryItem> item in m_host.TaskInventory)
+                    {
+                        if (item.Value.Type == (int)type && item.Value.Name == k)
+                        {
+                            key = item.Value.ItemID;
+                            break;
+                        }
+                    }
+                }
+            }
+
+
+            return key;
+        }
+
         //These are the implementations of the various ll-functions used by the LSL scripts.
         public LSL_Float llSin(double f)
         {
@@ -2279,8 +2317,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Vector llGetPos()
         {
             m_host.AddScriptLPS(1);
-            Vector3 pos = m_host.GetWorldPosition();
-            return new LSL_Vector(pos.X, pos.Y, pos.Z);
+            return m_host.GetWorldPosition();
         }
 
         public LSL_Vector llGetLocalPos()
@@ -2638,63 +2675,32 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             // send the sound, once, to all clients in range
-            m_host.SendSound(KeyOrName(sound).ToString(), volume, false, 0, 0, false, false);
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.SendSound(m_host.UUID,
+                        KeyOrName(sound, AssetType.Sound), volume, false, 0,
+                        0, false, false);
+            }
         }
 
-        // Xantor 20080528 we should do this differently.
-        // 1) apply the sound to the object
-        // 2) schedule full update
-        // just sending the sound out once doesn't work so well when other avatars come in view later on
-        // or when the prim gets moved, changed, sat on, whatever
-        // see large number of mantises (mantes?)
-        // 20080530 Updated to remove code duplication
-        // 20080530 Stop sound if there is one, otherwise volume only changes don't work
         public void llLoopSound(string sound, double volume)
         {
             m_host.AddScriptLPS(1);
-
-            if (m_host.Sound != UUID.Zero)
-                llStopSound();
-
-            m_host.Sound = KeyOrName(sound);
-            m_host.SoundGain = volume;
-            m_host.SoundFlags = 1;      // looping
-            m_host.SoundRadius = 20;    // Magic number, 20 seems reasonable. Make configurable?
-
-            m_host.ScheduleFullUpdate();
-            m_host.SendFullUpdateToAllClients();
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.LoopSound(m_host.UUID, KeyOrName(sound),
+                        volume, 20, false);
+            }
         }
 
         public void llLoopSoundMaster(string sound, double volume)
         {
             m_host.AddScriptLPS(1);
-            m_host.ParentGroup.LoopSoundMasterPrim = m_host;
-            lock (m_host.ParentGroup.LoopSoundSlavePrims)
+            if (m_SoundModule != null)
             {
-                foreach (SceneObjectPart prim in m_host.ParentGroup.LoopSoundSlavePrims)
-                {
-                    if (prim.Sound != UUID.Zero)
-                        llStopSound();
-
-                    prim.Sound = KeyOrName(sound);
-                    prim.SoundGain = volume;
-                    prim.SoundFlags = 1;      // looping
-                    prim.SoundRadius = 20;    // Magic number, 20 seems reasonable. Make configurable?
-
-                    prim.ScheduleFullUpdate();
-                    prim.SendFullUpdateToAllClients();
-                }
+                m_SoundModule.LoopSound(m_host.UUID, KeyOrName(sound),
+                        volume, 20, true);
             }
-            if (m_host.Sound != UUID.Zero)
-                llStopSound();
-
-            m_host.Sound = KeyOrName(sound);
-            m_host.SoundGain = volume;
-            m_host.SoundFlags = 1;      // looping
-            m_host.SoundRadius = 20;    // Magic number, 20 seems reasonable. Make configurable?
-
-            m_host.ScheduleFullUpdate();
-            m_host.SendFullUpdateToAllClients();
         }
 
         public void llLoopSoundSlave(string sound, double volume)
@@ -2711,61 +2717,39 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             // send the sound, once, to all clients in range
-            m_host.SendSound(KeyOrName(sound).ToString(), volume, false, 0, 0, true, false);
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.SendSound(m_host.UUID,
+                        KeyOrName(sound, AssetType.Sound), volume, false, 0,
+                        0, true, false);
+            }
         }
 
         public void llTriggerSound(string sound, double volume)
         {
             m_host.AddScriptLPS(1);
-            // send the sound, once, to all clients in range
-            m_host.SendSound(KeyOrName(sound).ToString(), volume, true, 0, 0, false, false);
+            // send the sound, once, to all clients in rangeTrigger or play an attached sound in this part's inventory.
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.SendSound(m_host.UUID,
+                        KeyOrName(sound, AssetType.Sound), volume, true, 0, 0,
+                        false, false);
+            }
         }
 
-        // Xantor 20080528: Clear prim data of sound instead
         public void llStopSound()
         {
             m_host.AddScriptLPS(1);
-            if (m_host.ParentGroup.LoopSoundSlavePrims.Contains(m_host))
-            {
-                if (m_host.ParentGroup.LoopSoundMasterPrim == m_host)
-                {
-                    foreach (SceneObjectPart part in m_host.ParentGroup.LoopSoundSlavePrims)
-                    {
-                        part.Sound = UUID.Zero;
-                        part.SoundGain = 0;
-                        part.SoundFlags = 0;
-                        part.SoundRadius = 0;
-                        part.ScheduleFullUpdate();
-                        part.SendFullUpdateToAllClients();
-                    }
-                    m_host.ParentGroup.LoopSoundMasterPrim = null;
-                    m_host.ParentGroup.LoopSoundSlavePrims.Clear();
-                }
-                else
-                {
-                    m_host.Sound = UUID.Zero;
-                    m_host.SoundGain = 0;
-                    m_host.SoundFlags = 0;
-                    m_host.SoundRadius = 0;
-                    m_host.ScheduleFullUpdate();
-                    m_host.SendFullUpdateToAllClients();
-                }
-            }
-            else
-            {
-                m_host.Sound = UUID.Zero;
-                m_host.SoundGain = 0;
-                m_host.SoundFlags = 0;
-                m_host.SoundRadius = 0;
-                m_host.ScheduleFullUpdate();
-                m_host.SendFullUpdateToAllClients();
-            }
+
+            if (m_SoundModule != null)
+                m_SoundModule.StopSound(m_host.UUID);
         }
 
         public void llPreloadSound(string sound)
         {
             m_host.AddScriptLPS(1);
-            m_host.PreloadSound(sound);
+            if (m_SoundModule != null)
+                m_SoundModule.PreloadSound(m_host.UUID, KeyOrName(sound), 0);
             ScriptSleep(1000);
         }
 
@@ -4747,16 +4731,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return;
             }
             // TODO: Parameter check logic required.
-            UUID soundId = UUID.Zero;
-            if (!UUID.TryParse(impact_sound, out soundId))
-            {
-                TaskInventoryItem item = m_host.Inventory.GetInventoryItem(impact_sound);
-
-                if (item != null && item.Type == (int)AssetType.Sound)
-                    soundId = item.AssetID;
-            }
-
-            m_host.CollisionSound = soundId;
+            m_host.CollisionSound = KeyOrName(impact_sound, AssetType.Sound);
             m_host.CollisionSoundVolume = (float)impact_volume;
             m_host.CollisionSoundType = 1;
         }
@@ -6318,10 +6293,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                           LSL_Vector bottom_south_west)
         {
             m_host.AddScriptLPS(1);
-            float radius1 = (float)llVecDist(llGetPos(), top_north_east);
-            float radius2 = (float)llVecDist(llGetPos(), bottom_south_west);
-            float radius = Math.Abs(radius1 - radius2);
-            m_host.SendSound(KeyOrName(sound).ToString(), volume, true, 0, radius, false, false);
+            if (m_SoundModule != null)
+            {
+                m_SoundModule.TriggerSoundLimited(m_host.UUID,
+                        KeyOrName(sound, AssetType.Sound), volume,
+                        bottom_south_west, top_north_east);
+            }
         }
 
         public void llEjectFromLand(string pest)
diff --git a/bin/OpenSimDefaults.ini b/bin/OpenSimDefaults.ini
index efcca70..ae5e788 100644
--- a/bin/OpenSimDefaults.ini
+++ b/bin/OpenSimDefaults.ini
@@ -1683,5 +1683,12 @@ Enabled = False
         ;; default is module is disabled at the top level
         AutoBackupModuleEnabled = false
 
+[Sounds]
+        ;; {Module} {} {Implementation of ISoundModule to use.} {OpenSim.Region.CoreModules.dll:SoundModule}
+        Module = OpenSim.Region.CoreModules.dll:SoundModule
+
+        ;; {MaxDistance} {} {Cut-off distance at which sounds will not be sent to users} {100.0}
+        MaxDistance = 100.0
+
 [Modules]
     Include-modules = "addon-modules/*/config/*.ini"