19 files changed, 2949 insertions, 1078 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
index 993d10f..3cbdde5 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
@@ -301,6 +301,26 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return null;
         }
 
+        public static void StateChange(IScriptEngine engine, uint localID, UUID itemID)
+        {
+            // Remove a specific script
+
+            // Remove dataserver events
+            m_Dataserver[engine].RemoveEvents(localID, itemID);
+
+            IWorldComm comms = engine.World.RequestModuleInterface<IWorldComm>();
+            if (comms != null)
+                comms.DeleteListener(itemID);
+
+            IXMLRPC xmlrpc = engine.World.RequestModuleInterface<IXMLRPC>();
+            xmlrpc.DeleteChannels(itemID);
+            xmlrpc.CancelSRDRequests(itemID);
+
+            // Remove Sensors
+            m_SensorRepeat[engine].UnSetSenseRepeaterEvents(localID, itemID);
+
+        }
+
         public static Object[] GetSerializationData(IScriptEngine engine, UUID itemID)
         {
             List<Object> data = new List<Object>();
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/CM_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/CM_Api.cs
new file mode 100644
index 0000000..489c1c6
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/CM_Api.cs
@@ -0,0 +1,118 @@
+/*
+ * 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 OpenSimulator 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.
+ */
+
+using System;
+using System.Reflection;
+using System.Collections;
+using System.Collections.Generic;
+using System.Runtime.Remoting.Lifetime;
+using OpenMetaverse;
+using Nini.Config;
+using OpenSim;
+using OpenSim.Framework;
+using OpenSim.Region.CoreModules.World.LightShare;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api.Plugins;
+using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
+using OpenSim.Region.ScriptEngine.Interfaces;
+using OpenSim.Region.ScriptEngine.Shared.Api.Interfaces;
+using OpenSim.Services.Interfaces;
+
+using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using LSL_Key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_Rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_Vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Api
+{
+    [Serializable]
+    public class CM_Api : MarshalByRefObject, ICM_Api, IScriptApi
+    {
+        internal IScriptEngine m_ScriptEngine;
+        internal SceneObjectPart m_host;
+        internal uint m_localID;
+        internal UUID m_itemID;
+        internal bool m_CMFunctionsEnabled = false;
+
+        public void Initialize(IScriptEngine ScriptEngine, SceneObjectPart host, uint localID, UUID itemID)
+        {
+            m_ScriptEngine = ScriptEngine;
+            m_host = host;
+            m_localID = localID;
+            m_itemID = itemID;
+
+            if (m_ScriptEngine.Config.GetBoolean("AllowCareminsterFunctions", false))
+                m_CMFunctionsEnabled = true;
+        }
+
+        public override Object InitializeLifetimeService()
+        {
+            ILease lease = (ILease)base.InitializeLifetimeService();
+
+            if (lease.CurrentState == LeaseState.Initial)
+            {
+                lease.InitialLeaseTime = TimeSpan.FromMinutes(0);
+                //                lease.RenewOnCallTime = TimeSpan.FromSeconds(10.0);
+                //                lease.SponsorshipTimeout = TimeSpan.FromMinutes(1.0);
+            }
+            return lease;
+        }
+
+        public Scene World
+        {
+            get { return m_ScriptEngine.World; }
+        }
+
+        public string cmDetectedCountry(int number)
+        {
+            m_host.AddScriptLPS(1);
+            DetectParams detectedParams = m_ScriptEngine.GetDetectParams(m_itemID, number);
+            if (detectedParams == null)
+                return String.Empty;
+            return detectedParams.Country;
+        }
+
+        public string cmGetAgentCountry(LSL_Key key)
+        {
+            if (!World.Permissions.IsGod(m_host.OwnerID))
+                return String.Empty;
+
+            UUID uuid;
+
+            if (!UUID.TryParse(key, out uuid))
+                return String.Empty;
+
+            UserAccount account = World.UserAccountService.GetUserAccount(World.RegionInfo.ScopeID, uuid);
+            return account.UserCountry;
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 704dfc3..9208034 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -28,10 +28,12 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Runtime.Remoting.Lifetime;
 using System.Text;
 using System.Threading;
 using System.Text.RegularExpressions;
+using System.Timers;
 using Nini.Config;
 using log4net;
 using OpenMetaverse;
@@ -44,6 +46,7 @@ using OpenSim.Region.CoreModules.World.Land;
 using OpenSim.Region.CoreModules.World.Terrain;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Framework.Scenes.Serialization;
 using OpenSim.Region.Framework.Scenes.Animation;
 using OpenSim.Region.Physics.Manager;
 using OpenSim.Region.ScriptEngine.Shared;
@@ -65,6 +68,7 @@ using LSL_Rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
 using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
 using LSL_Vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
 using System.Reflection;
+using Timer = System.Timers.Timer;
 
 namespace OpenSim.Region.ScriptEngine.Shared.Api
 {
@@ -104,16 +108,26 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         protected int m_notecardLineReadCharsMax = 255;
         protected int m_scriptConsoleChannel = 0;
         protected bool m_scriptConsoleChannelEnabled = false;
+        protected bool m_debuggerSafe = false;
         protected IUrlModule m_UrlModule = null;
         protected Dictionary<UUID, UserInfoCacheEntry> m_userInfoCache =
                 new Dictionary<UUID, UserInfoCacheEntry>();
 
+        protected Timer m_ShoutSayTimer;
+        protected int m_SayShoutCount = 0;
+
         public void Initialize(IScriptEngine ScriptEngine, SceneObjectPart host, uint localID, UUID itemID)
         {
+            m_ShoutSayTimer = new Timer(1000);
+            m_ShoutSayTimer.Elapsed += SayShoutTimerElapsed;
+            m_ShoutSayTimer.AutoReset = true;
+            m_ShoutSayTimer.Start();
+
             m_ScriptEngine = ScriptEngine;
             m_host = host;
             m_localID = localID;
             m_itemID = itemID;
+            m_debuggerSafe = m_ScriptEngine.Config.GetBoolean("DebuggerSafe", false);
 
             m_ScriptDelayFactor =
                 m_ScriptEngine.Config.GetFloat("ScriptDelayFactor", 1.0f);
@@ -161,6 +175,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             get { return m_ScriptEngine.World; }
         }
 
+        [DebuggerNonUserCode]
         public void state(string newState)
         {
             m_ScriptEngine.SetState(m_itemID, newState);
@@ -170,6 +185,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// Reset the named script. The script must be present
         /// in the same prim.
         /// </summary>
+        [DebuggerNonUserCode]
         public void llResetScript()
         {
             m_host.AddScriptLPS(1);
@@ -226,9 +242,62 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
         }
 
+        public List<ScenePresence> GetLinkAvatars(int linkType)
+        {
+            List<ScenePresence> ret = new List<ScenePresence>();
+            if (m_host == null || m_host.ParentGroup == null || m_host.ParentGroup.IsDeleted)
+                return ret;
+            
+            List<ScenePresence> avs = m_host.ParentGroup.GetLinkedAvatars();
+
+            switch (linkType)
+            {
+                case ScriptBaseClass.LINK_SET:
+                    return avs;
+
+                case ScriptBaseClass.LINK_ROOT:
+                    return ret;
+
+                case ScriptBaseClass.LINK_ALL_OTHERS:
+                    return avs;
+
+                case ScriptBaseClass.LINK_ALL_CHILDREN:
+                    return avs;
+
+                case ScriptBaseClass.LINK_THIS:
+                    return ret;
+
+                default:
+                    if (linkType < 0)
+                        return ret;
+
+                    int partCount = m_host.ParentGroup.GetPartCount();
+
+                    if (linkType <= partCount)
+                    {
+                        return ret;
+                    }
+                    else
+                    {
+                        linkType = linkType - partCount;
+                        if (linkType > avs.Count)
+                        {
+                            return ret;
+                        }
+                        else
+                        {
+                            ret.Add(avs[linkType-1]);
+                            return ret;
+                        }
+                    }
+            }
+        }
+
         public List<SceneObjectPart> GetLinkParts(int linkType)
         {
             List<SceneObjectPart> ret = new List<SceneObjectPart>();
+            if (m_host == null || m_host.ParentGroup == null || m_host.ParentGroup.IsDeleted)
+                return ret;
             ret.Add(m_host);
 
             switch (linkType)
@@ -282,28 +351,46 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <returns></returns>
         protected TaskInventoryItem GetSelfInventoryItem()
         {
-            lock (m_host.TaskInventory)
-                return m_host.TaskInventory[m_itemID];
+            TaskInventoryItem invItem = null;
+
+            bool unlock = false;
+            if (!m_host.TaskInventory.IsReadLockedByMe())
+            {
+                m_host.TaskInventory.LockItemsForRead(true);
+                unlock = true;
+            }
+
+            invItem = m_host.TaskInventory[m_itemID];
+
+            if (unlock)
+            {
+                m_host.TaskInventory.LockItemsForRead(false);
+            }
+
+            return invItem;
         }
 
         protected UUID InventoryKey(string name, int type)
         {
             m_host.AddScriptLPS(1);
-
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                 {
-                    if (inv.Value.Name == name)
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    
+                    if (inv.Value.Type != type)
                     {
-                        if (inv.Value.Type != type)
-                            return UUID.Zero;
-
-                        return inv.Value.AssetID;
+                        return UUID.Zero;
                     }
+
+                    return inv.Value.AssetID;
                 }
             }
 
+            m_host.TaskInventory.LockItemsForRead(false);
             return UUID.Zero;
         }
 
@@ -311,17 +398,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            lock (m_host.TaskInventory)
+            
+            m_host.TaskInventory.LockItemsForRead(true);
+
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                 {
-                    if (inv.Value.Name == name)
-                    {
-                        return inv.Value.AssetID;
-                    }
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    return inv.Value.AssetID;
                 }
             }
 
+            m_host.TaskInventory.LockItemsForRead(false);
+
+
             return UUID.Zero;
         }
 
@@ -463,31 +554,48 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         //Now we start getting into quaternions which means sin/cos, matrices and vectors. ckrinke
 
-        /// <summary>
-        /// Convert an LSL rotation to a Euler vector.
-        /// </summary>
-        /// <remarks>
-        /// Using algorithm based off http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToEuler/quat_2_euler_paper_ver2-1.pdf
-        /// to avoid issues with singularity and rounding with Y rotation of +/- PI/2
-        /// </remarks>
-        /// <param name="r"></param>
-        /// <returns></returns>
-        public LSL_Vector llRot2Euler(LSL_Rotation r)
+        // Utility function for llRot2Euler
+
+        // normalize an angle between -PI and PI (-180 to +180 degrees)
+        protected double NormalizeAngle(double angle)
         {
-            m_host.AddScriptLPS(1);
+            if (angle > -Math.PI && angle < Math.PI)
+                return angle;
+
+            int numPis = (int)(Math.PI / angle);
+            double remainder = angle - Math.PI * numPis;
+            if (numPis % 2 == 1)
+                return Math.PI - angle;
+            return remainder;
+        }
 
-            LSL_Vector v = new LSL_Vector(0.0, 0.0, 1.0) * r;   // Z axis unit vector unaffected by Z rotation component of r.
-            double m = LSL_Vector.Mag(v);                       // Just in case v isn't normalized, need magnitude for Asin() operation later.
-            if (m == 0.0) return new LSL_Vector();
-            double x = Math.Atan2(-v.y, v.z);
-            double sin = v.x / m;
-            if (sin < -0.999999 || sin > 0.999999) x = 0.0;     // Force X rotation to 0 at the singularities.
-            double y = Math.Asin(sin);
-            // Rotate X axis unit vector by r and unwind the X and Y rotations leaving only the Z rotation
-            v = new LSL_Vector(1.0, 0.0, 0.0) * ((r * new LSL_Rotation(Math.Sin(-x / 2.0), 0.0, 0.0, Math.Cos(-x / 2.0))) * new LSL_Rotation(0.0, Math.Sin(-y / 2.0), 0.0, Math.Cos(-y / 2.0)));
-            double z = Math.Atan2(v.y, v.x);
+        public LSL_Vector llRot2Euler(LSL_Rotation q1)
+        {
+            m_host.AddScriptLPS(1);
+            LSL_Vector eul = new LSL_Vector();
 
-            return new LSL_Vector(x, y, z);
+            double sqw = q1.s*q1.s;
+            double sqx = q1.x*q1.x;
+            double sqy = q1.z*q1.z;
+            double sqz = q1.y*q1.y;
+            double unit = sqx + sqy + sqz + sqw; // if normalised is one, otherwise is correction factor
+            double test = q1.x*q1.z + q1.y*q1.s;
+            if (test > 0.4999*unit) { // singularity at north pole
+                eul.z = 2 * Math.Atan2(q1.x,q1.s);
+                eul.y = Math.PI/2;
+                eul.x = 0;
+                return eul;
+            }
+            if (test < -0.4999*unit) { // singularity at south pole
+                eul.z = -2 * Math.Atan2(q1.x,q1.s);
+                eul.y = -Math.PI/2;
+                eul.x = 0;
+                return eul;
+            }
+            eul.z = Math.Atan2(2*q1.z*q1.s-2*q1.x*q1.y , sqx - sqy - sqz + sqw);
+            eul.y = Math.Asin(2*test/unit);
+            eul.x = Math.Atan2(2*q1.x*q1.s-2*q1.z*q1.y , -sqx + sqy - sqz + sqw);
+            return eul;
         }
 
         /* From wiki:
@@ -689,77 +797,76 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             //A and B should both be normalized
             m_host.AddScriptLPS(1);
-            LSL_Rotation rotBetween;
-            // Check for zero vectors. If either is zero, return zero rotation. Otherwise,
-            // continue calculation.
-            if (a == new LSL_Vector(0.0f, 0.0f, 0.0f) || b == new LSL_Vector(0.0f, 0.0f, 0.0f))
+            /*  This method is more accurate than the SL one, and thus causes problems
+                for scripts that deal with the SL inaccuracy around 180-degrees -.- .._.
+                
+            double dotProduct = LSL_Vector.Dot(a, b);
+            LSL_Vector crossProduct = LSL_Vector.Cross(a, b);
+            double magProduct = LSL_Vector.Mag(a) * LSL_Vector.Mag(b);
+            double angle = Math.Acos(dotProduct / magProduct);
+            LSL_Vector axis = LSL_Vector.Norm(crossProduct);
+            double s = Math.Sin(angle / 2);
+
+            double x = axis.x * s;
+            double y = axis.y * s;
+            double z = axis.z * s;
+            double w = Math.Cos(angle / 2);
+
+            if (Double.IsNaN(x) || Double.IsNaN(y) || Double.IsNaN(z) || Double.IsNaN(w))
+                return new LSL_Rotation(0.0f, 0.0f, 0.0f, 1.0f);
+
+            return new LSL_Rotation((float)x, (float)y, (float)z, (float)w);
+            */
+            
+            // This method mimics the 180 errors found in SL
+            // See www.euclideanspace.com... angleBetween
+            LSL_Vector vec_a = a;
+            LSL_Vector vec_b = b;
+            
+            // Eliminate zero length
+            LSL_Float vec_a_mag = LSL_Vector.Mag(vec_a);
+            LSL_Float vec_b_mag = LSL_Vector.Mag(vec_b);
+            if (vec_a_mag < 0.00001 ||
+                vec_b_mag < 0.00001)
             {
-                rotBetween = new LSL_Rotation(0.0f, 0.0f, 0.0f, 1.0f);
+                return new LSL_Rotation(0.0f, 0.0f, 0.0f, 1.0f);
             }
-            else
+            
+            // Normalize
+            vec_a = llVecNorm(vec_a);
+            vec_b = llVecNorm(vec_b);
+
+            // Calculate axis and rotation angle
+            LSL_Vector axis = vec_a % vec_b;
+            LSL_Float cos_theta  = vec_a * vec_b;
+    
+            // Check if parallel
+            if (cos_theta > 0.99999)
             {
-                a = LSL_Vector.Norm(a);
-                b = LSL_Vector.Norm(b);
-                double dotProduct = LSL_Vector.Dot(a, b);
-                // There are two degenerate cases possible. These are for vectors 180 or
-                // 0 degrees apart. These have to be detected and handled individually.
-                //
-                // Check for vectors 180 degrees apart.
-                // A dot product of -1 would mean the angle between vectors is 180 degrees.
-                if (dotProduct < -0.9999999f)
-                {
-                    // First assume X axis is orthogonal to the vectors.
-                    LSL_Vector orthoVector = new LSL_Vector(1.0f, 0.0f, 0.0f);
-                    orthoVector = orthoVector - a * (a.x / LSL_Vector.Dot(a, a));
-                    // Check for near zero vector. A very small non-zero number here will create
-                    // a rotation in an undesired direction.
-                    if (LSL_Vector.Mag(orthoVector) > 0.0001)
-                    {
-                        rotBetween = new LSL_Rotation(orthoVector.x, orthoVector.y, orthoVector.z, 0.0f);
-                    }
-                    // If the magnitude of the vector was near zero, then assume the X axis is not
-                    // orthogonal and use the Z axis instead.
-                    else
-                    {
-                        // Set 180 z rotation.
-                        rotBetween = new LSL_Rotation(0.0f, 0.0f, 1.0f, 0.0f);
-                    }
-                }
-                // Check for parallel vectors.
-                // A dot product of 1 would mean the angle between vectors is 0 degrees.
-                else if (dotProduct > 0.9999999f)
-                {
-                    // Set zero rotation.
-                    rotBetween = new LSL_Rotation(0.0f, 0.0f, 0.0f, 1.0f);
-                }
-                else
-                {
-                    // All special checks have been performed so get the axis of rotation.
-                    LSL_Vector crossProduct = LSL_Vector.Cross(a, b);
-                    // Quarternion s value is the length of the unit vector + dot product.
-                    double qs = 1.0 + dotProduct;
-                    rotBetween = new LSL_Rotation(crossProduct.x, crossProduct.y, crossProduct.z, qs);
-                    // Normalize the rotation.
-                    double mag = LSL_Rotation.Mag(rotBetween);
-                    // We shouldn't have to worry about a divide by zero here. The qs value will be
-                    // non-zero because we already know if we're here, then the dotProduct is not -1 so
-                    // qs will not be zero. Also, we've already handled the input vectors being zero so the
-                    // crossProduct vector should also not be zero.
-                    rotBetween.x = rotBetween.x / mag;
-                    rotBetween.y = rotBetween.y / mag;
-                    rotBetween.z = rotBetween.z / mag;
-                    rotBetween.s = rotBetween.s / mag;
-                    // Check for undefined values and set zero rotation if any found. This code might not actually be required
-                    // any longer since zero vectors are checked for at the top.
-                    if (Double.IsNaN(rotBetween.x) || Double.IsNaN(rotBetween.y) || Double.IsNaN(rotBetween.z) || Double.IsNaN(rotBetween.s))
-                    {
-                        rotBetween = new LSL_Rotation(0.0f, 0.0f, 0.0f, 1.0f);
-                    }
-                }
+                return new LSL_Rotation(0.0f, 0.0f, 0.0f, 1.0f);
+            }
+            
+            // Check if anti-parallel
+            else if (cos_theta < -0.99999)
+            {
+                LSL_Vector orthog_axis = new LSL_Vector(1.0, 0.0, 0.0) - (vec_a.x / (vec_a * vec_a) * vec_a);
+                if (LSL_Vector.Mag(orthog_axis)  < 0.000001)  orthog_axis = new LSL_Vector(0.0, 0.0, 1.0);
+                return new LSL_Rotation((float)orthog_axis.x, (float)orthog_axis.y, (float)orthog_axis.z, 0.0);
+            }
+            else // other rotation
+            {
+                LSL_Float theta = (LSL_Float)Math.Acos(cos_theta) * 0.5f;
+                axis = llVecNorm(axis);
+                double x, y, z, s, t;
+                s = Math.Cos(theta);
+                t = Math.Sin(theta);
+                x = axis.x * t;
+                y = axis.y * t;
+                z = axis.z * t;
+                return new LSL_Rotation(x,y,z,s);
             }
-            return rotBetween;
         }
-
+                
         public void llWhisper(int channelID, string text)
         {
             m_host.AddScriptLPS(1);
@@ -779,6 +886,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
+            if (channelID == 0)
+                m_SayShoutCount++;
+
+            if (m_SayShoutCount >= 11)
+                ScriptSleep(2000);
+
             if (m_scriptConsoleChannelEnabled && (channelID == m_scriptConsoleChannel))
             {
                 Console.WriteLine(text);
@@ -801,6 +914,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
+            if (channelID == 0)
+                m_SayShoutCount++;
+
+            if (m_SayShoutCount >= 11)
+                ScriptSleep(2000);
+
             if (text.Length > 1023)
                 text = text.Substring(0, 1023);
 
@@ -1103,10 +1222,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return detectedParams.TouchUV;
         }
 
+        [DebuggerNonUserCode]
         public virtual void llDie()
         {
             m_host.AddScriptLPS(1);
-            throw new SelfDeleteException();
+            if (!m_host.ParentGroup.IsAttachment) throw new SelfDeleteException();
         }
 
         public LSL_Float llGround(LSL_Vector offset)
@@ -1179,6 +1299,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void llSetStatus(int status, int value)
         {
+            if (m_host == null || m_host.ParentGroup == null || m_host.ParentGroup.IsDeleted)
+                return;
             m_host.AddScriptLPS(1);
 
             int statusrotationaxis = 0;
@@ -1410,6 +1532,48 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
+            SetColor(m_host, color, face);
+        }
+
+        protected void SetColor(SceneObjectPart part, LSL_Vector color, int face)
+        {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
+            Primitive.TextureEntry tex = part.Shape.Textures;
+            Color4 texcolor;
+            if (face >= 0 && face < GetNumberOfSides(part))
+            {
+                texcolor = tex.CreateFace((uint)face).RGBA;
+                texcolor.R = Util.Clip((float)color.x, 0.0f, 1.0f);
+                texcolor.G = Util.Clip((float)color.y, 0.0f, 1.0f);
+                texcolor.B = Util.Clip((float)color.z, 0.0f, 1.0f);
+                tex.FaceTextures[face].RGBA = texcolor;
+                part.UpdateTextureEntry(tex.GetBytes());
+                return;
+            }
+            else if (face == ScriptBaseClass.ALL_SIDES)
+            {
+                for (uint i = 0; i < GetNumberOfSides(part); i++)
+                {
+                    if (tex.FaceTextures[i] != null)
+                    {
+                        texcolor = tex.FaceTextures[i].RGBA;
+                        texcolor.R = Util.Clip((float)color.x, 0.0f, 1.0f);
+                        texcolor.G = Util.Clip((float)color.y, 0.0f, 1.0f);
+                        texcolor.B = Util.Clip((float)color.z, 0.0f, 1.0f);
+                        tex.FaceTextures[i].RGBA = texcolor;
+                    }
+                    texcolor = tex.DefaultTexture.RGBA;
+                    texcolor.R = Util.Clip((float)color.x, 0.0f, 1.0f);
+                    texcolor.G = Util.Clip((float)color.y, 0.0f, 1.0f);
+                    texcolor.B = Util.Clip((float)color.z, 0.0f, 1.0f);
+                    tex.DefaultTexture.RGBA = texcolor;
+                }
+                part.UpdateTextureEntry(tex.GetBytes());
+                return;
+            }
+
             if (face == ScriptBaseClass.ALL_SIDES)
                 face = SceneObjectPart.ALL_SIDES;
 
@@ -1418,6 +1582,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void SetTexGen(SceneObjectPart part, int face,int style)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             Primitive.TextureEntry tex = part.Shape.Textures;
             MappingType textype;
             textype = MappingType.Default;
@@ -1448,6 +1615,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void SetGlow(SceneObjectPart part, int face, float glow)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             Primitive.TextureEntry tex = part.Shape.Textures;
             if (face >= 0 && face < GetNumberOfSides(part))
             {
@@ -1473,6 +1643,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void SetShiny(SceneObjectPart part, int face, int shiny, Bumpiness bump)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
 
             Shininess sval = new Shininess();
 
@@ -1523,6 +1695,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void SetFullBright(SceneObjectPart part, int face, bool bright)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
              Primitive.TextureEntry tex = part.Shape.Textures;
              if (face >= 0 && face < GetNumberOfSides(part))
              {
@@ -1583,13 +1758,26 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             List<SceneObjectPart> parts = GetLinkParts(linknumber);
-
-            foreach (SceneObjectPart part in parts)
-                SetAlpha(part, alpha, face);
+            if (parts.Count > 0)
+            {
+                try
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = true;
+                    foreach (SceneObjectPart part in parts)
+                        SetAlpha(part, alpha, face);
+                }
+                finally
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = false;
+                }
+            }
         }
 
         protected void SetAlpha(SceneObjectPart part, double alpha, int face)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             Primitive.TextureEntry tex = part.Shape.Textures;
             Color4 texcolor;
             if (face >= 0 && face < GetNumberOfSides(part))
@@ -1642,7 +1830,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         protected void SetFlexi(SceneObjectPart part, bool flexi, int softness, float gravity, float friction,
             float wind, float tension, LSL_Vector Force)
         {
-            if (part == null)
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
                 return;
 
             if (flexi)
@@ -1676,7 +1864,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <param name="falloff"></param>
         protected void SetPointLight(SceneObjectPart part, bool light, LSL_Vector color, float intensity, float radius, float falloff)
         {
-            if (part == null)
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
                 return;
 
             if (light)
@@ -1754,15 +1942,27 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             List<SceneObjectPart> parts = GetLinkParts(linknumber);
-
-            foreach (SceneObjectPart part in parts)
-              SetTexture(part, texture, face);
-
+            if (parts.Count > 0)
+            {
+                try
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = true;
+                    foreach (SceneObjectPart part in parts)
+                        SetTexture(part, texture, face);
+                }
+                finally
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = false;
+                }
+            }
             ScriptSleep(200);
         }
 
         protected void SetTexture(SceneObjectPart part, string texture, int face)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             UUID textureID = new UUID();
 
                     textureID = InventoryKey(texture, (int)AssetType.Texture);
@@ -1807,6 +2007,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         protected void ScaleTexture(SceneObjectPart part, double u, double v, int face)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             Primitive.TextureEntry tex = part.Shape.Textures;
             if (face >= 0 && face < GetNumberOfSides(part))
             {
@@ -1843,6 +2046,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         protected void OffsetTexture(SceneObjectPart part, double u, double v, int face)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             Primitive.TextureEntry tex = part.Shape.Textures;
             if (face >= 0 && face < GetNumberOfSides(part))
             {
@@ -1879,6 +2085,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         protected void RotateTexture(SceneObjectPart part, double rotation, int face)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             Primitive.TextureEntry tex = part.Shape.Textures;
             if (face >= 0 && face < GetNumberOfSides(part))
             {
@@ -1983,26 +2192,76 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return real_vec;
         }
 
+        public LSL_Integer llSetRegionPos(LSL_Vector pos)
+        {
+            return new LSL_Integer(SetRegionPos(m_host, pos));
+        }
+
+        protected int SetRegionPos(SceneObjectPart part, LSL_Vector targetPos)
+        {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return 0;
+
+            SceneObjectGroup grp = part.ParentGroup;
+
+            if (grp.IsAttachment)
+                return 0;
+
+            if (grp.RootPart.PhysActor != null && grp.RootPart.PhysActor.IsPhysical)
+                return 0;
+
+            if (targetPos.x < -10.0f || targetPos.x >= (float)Constants.RegionSize || targetPos.y < -10.0f || targetPos.y >= (float)Constants.RegionSize || targetPos.z < 0 || targetPos.z >= 4096.0f)
+                return 0;
+
+            float constrainedX = (float)targetPos.x;
+            float constrainedY = (float)targetPos.y;
+
+            if (constrainedX < 0.0f)
+                constrainedX = 0.0f;
+            if (constrainedY < 0.0f)
+                constrainedY = 0.0f;
+            if (constrainedX >= (float)Constants.RegionSize)
+                constrainedX = (float)Constants.RegionSize - 0.1f;
+            if (constrainedY >= (float)Constants.RegionSize)
+                constrainedY = (float)Constants.RegionSize -0.1f;
+
+            float ground = World.GetGroundHeight(constrainedX, constrainedY);
+
+            if (targetPos.z < ground)
+                targetPos.z = ground;
+
+            Vector3 dest = new Vector3((float)targetPos.x, (float)targetPos.y, (float)targetPos.z);
+
+            if (!World.Permissions.CanObjectEntry(grp.UUID, false, dest))
+                return 0;
+
+            grp.UpdateGroupPosition(dest);
+
+            return 1;
+        }
+
         protected void SetPos(SceneObjectPart part, LSL_Vector targetPos)
         {
-            // Capped movemment if distance > 10m (http://wiki.secondlife.com/wiki/LlSetPos)
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             LSL_Vector currentPos = GetPartLocalPos(part);
+            LSL_Vector toPos = GetSetPosTarget(part, targetPos, currentPos);
 
-            float ground = World.GetGroundHeight((float)targetPos.x, (float)targetPos.y);
-            bool disable_underground_movement = m_ScriptEngine.Config.GetBoolean("DisableUndergroundMovement", true);
 
             if (part.ParentGroup.RootPart == part)
             {
-                if ((targetPos.z < ground) && disable_underground_movement && m_host.ParentGroup.AttachmentPoint == 0)
-                    targetPos.z = ground;
                 SceneObjectGroup parent = part.ParentGroup;
-                LSL_Vector real_vec = SetPosAdjust(currentPos, targetPos);
-                parent.UpdateGroupPosition(new Vector3((float)real_vec.x, (float)real_vec.y, (float)real_vec.z));
+                Vector3 dest = new Vector3((float)toPos.x, (float)toPos.y, (float)toPos.z);
+                if (!World.Permissions.CanObjectEntry(parent.UUID, false, dest))
+                    return;
+                Util.FireAndForget(delegate(object x) {
+                    parent.UpdateGroupPosition(dest);
+                });
             }
             else
             {
-                LSL_Vector rel_vec = SetPosAdjust(currentPos, targetPos);
-                part.OffsetPosition = new Vector3((float)rel_vec.x, (float)rel_vec.y, (float)rel_vec.z);
+                part.OffsetPosition = new Vector3((float)toPos.x, (float)toPos.y, (float)toPos.z);
                 SceneObjectGroup parent = part.ParentGroup;
                 parent.HasGroupChanged = true;
                 parent.ScheduleGroupForTerseUpdate();
@@ -2035,17 +2294,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             else
             {
                 if (part.ParentGroup.IsAttachment)
-                {
                     pos = part.AttachedPos;
-                }
                 else
-                {
                     pos = part.AbsolutePosition;
-                }
             }
 
-//            m_log.DebugFormat("[LSL API]: Returning {0} in GetPartLocalPos()", pos);
-
             return new LSL_Vector(pos.X, pos.Y, pos.Z);
         }
 
@@ -2054,9 +2307,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             // try to let this work as in SL...
-            if (m_host.ParentID == 0)
-            {
-                // special case: If we are root, rotate complete SOG to new rotation
+            if (m_host.LinkNum < 2)
+            {
+                // Special case: If we are root, rotate complete SOG to new
+                // rotation.
+                // We are root if the link number is 0 (single prim) or 1
+                // (root prim). ParentID may be nonzero in attachments and
+                // using it would cause attachments and HUDs to rotate
+                // to the wrong positions.
                 SetRot(m_host, Rot2Quaternion(rot));
             }
             else
@@ -2081,6 +2339,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         protected void SetRot(SceneObjectPart part, Quaternion rot)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             part.UpdateRotation(rot);
             // Update rotation does not move the object in the physics scene if it's a linkset.
 
@@ -2235,13 +2496,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llApplyRotationalImpulse(LSL_Vector force, int local)
         {
             m_host.AddScriptLPS(1);
-            m_host.ApplyAngularImpulse(new Vector3((float)force.x, (float)force.y, (float)force.z), local != 0);
+            m_host.ParentGroup.RootPart.ApplyAngularImpulse(new Vector3((float)force.x, (float)force.y, (float)force.z), local != 0);
         }
 
         public void llSetTorque(LSL_Vector torque, int local)
         {
             m_host.AddScriptLPS(1);
-            m_host.SetAngularImpulse(new Vector3((float)torque.x, (float)torque.y, (float)torque.z), local != 0);
+            m_host.ParentGroup.RootPart.SetAngularImpulse(new Vector3((float)torque.x, (float)torque.y, (float)torque.z), local != 0);
         }
 
         public LSL_Vector llGetTorque()
@@ -2845,35 +3106,39 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llLookAt(LSL_Vector target, double strength, double damping)
         {
             m_host.AddScriptLPS(1);
-            // Determine where we are looking from
-            LSL_Vector from = llGetPos();
 
-            // Work out the normalised vector from the source to the target
-            LSL_Vector delta = llVecNorm(target - from);
-            LSL_Vector angle = new LSL_Vector(0,0,0);
+            // Get the normalized vector to the target
+            LSL_Vector d1 = llVecNorm(target - llGetPos());
 
-            // Calculate the yaw
-            // subtracting PI_BY_TWO is required to compensate for the odd SL co-ordinate system
-            angle.x = llAtan2(delta.z, delta.y) - ScriptBaseClass.PI_BY_TWO;
+            // Get the bearing (yaw)
+            LSL_Vector a1 = new LSL_Vector(0,0,0);
+            a1.z = llAtan2(d1.y, d1.x);
 
-            // Calculate pitch
-            angle.y = llAtan2(delta.x, llSqrt((delta.y * delta.y) + (delta.z * delta.z)));
+            // Get the elevation (pitch)
+            LSL_Vector a2 = new LSL_Vector(0,0,0);
+            a2.y= -llAtan2(d1.z, llSqrt((d1.x * d1.x) + (d1.y * d1.y)));
 
-            // we need to convert from a vector describing
-            // the angles of rotation in radians into rotation value
-            LSL_Rotation rot = llEuler2Rot(angle);
-            
-            // Per discussion with Melanie, for non-physical objects llLookAt appears to simply
-            // set the rotation of the object, copy that behavior
-            PhysicsActor pa = m_host.PhysActor;
+            LSL_Rotation r1 = llEuler2Rot(a1);
+            LSL_Rotation r2 = llEuler2Rot(a2);
+            LSL_Rotation r3 = new LSL_Rotation(0.000000, 0.707107, 0.000000, 0.707107);
 
-            if (strength == 0 || pa == null || !pa.IsPhysical)
+            if (m_host.PhysActor == null || !m_host.PhysActor.IsPhysical)
             {
-                llSetRot(rot);
+                // Do nothing if either value is 0 (this has been checked in SL)
+                if (strength <= 0.0 || damping <= 0.0)
+                    return;
+
+                llSetRot(r3 * r2 * r1);
             }
             else
             {
-                m_host.StartLookAt(Rot2Quaternion(rot), (float)strength, (float)damping);
+                if (strength == 0)
+                {
+                    llSetRot(r3 * r2 * r1);
+                    return;
+                }
+
+                m_host.StartLookAt(Rot2Quaternion(r3 * r2 * r1), (float)strength, (float)damping);
             }
         }
 
@@ -2918,17 +3183,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
             else
             {
-                if (m_host.IsRoot)
-                {
+                // new SL always returns object mass
+//                if (m_host.IsRoot)
+//                {
                     return m_host.ParentGroup.GetMass();
-                }
-                else
-                {
-                    return m_host.GetMass();
-                }
+//                }
+//                else
+//                {
+//                    return m_host.GetMass();
+//                }
             }
         }
 
+ 
+        public LSL_Float llGetMassMKS()
+        {
+            return 100f * llGetMass();
+        }
+
         public void llCollisionFilter(string name, string id, int accept)
         {
             m_host.AddScriptLPS(1);
@@ -3039,11 +3311,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-//            if (m_host.ParentGroup.RootPart.AttachmentPoint == 0)
-//                return;
-
             TaskInventoryItem item = GetSelfInventoryItem();
 
+            m_host.TaskInventory.LockItemsForRead(false);
+
             if (item.PermsGranter != m_host.OwnerID)
                 return;
 
@@ -3088,6 +3359,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void llInstantMessage(string user, string message)
         {
+            UUID result;
+            if (!UUID.TryParse(user, out result))
+            {
+                ShoutError("An invalid key  was passed to llInstantMessage");
+                ScriptSleep(2000);
+                return;
+            }
+            
+
             m_host.AddScriptLPS(1);
 
             // We may be able to use ClientView.SendInstantMessage here, but we need a client instance.
@@ -3102,14 +3382,34 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             UUID friendTransactionID = UUID.Random();
 
             //m_pendingFriendRequests.Add(friendTransactionID, fromAgentID);
-
+            
             GridInstantMessage msg = new GridInstantMessage();
             msg.fromAgentID = new Guid(m_host.UUID.ToString()); // fromAgentID.Guid;
             msg.toAgentID = new Guid(user); // toAgentID.Guid;
             msg.imSessionID = new Guid(friendTransactionID.ToString()); // This is the item we're mucking with here
 //            m_log.Debug("[Scripting IM]: From:" + msg.fromAgentID.ToString() + " To: " + msg.toAgentID.ToString() + " Session:" + msg.imSessionID.ToString() + " Message:" + message);
 //            m_log.Debug("[Scripting IM]: Filling Session: " + msg.imSessionID.ToString());
-            msg.timestamp = (uint)Util.UnixTimeSinceEpoch();// timestamp;
+//            DateTime dt = DateTime.UtcNow;
+//
+//            // Ticks from UtcNow, but make it look like local. Evil, huh?
+//            dt = DateTime.SpecifyKind(dt, DateTimeKind.Local);
+//
+//            try
+//            {
+//                // Convert that to the PST timezone
+//                TimeZoneInfo timeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById("America/Los_Angeles");
+//                dt = TimeZoneInfo.ConvertTime(dt, timeZoneInfo);
+//            }
+//            catch
+//            {
+//                // No logging here, as it could be VERY spammy
+//            }
+//
+//            // And make it look local again to fool the unix time util
+//            dt = DateTime.SpecifyKind(dt, DateTimeKind.Utc);
+
+            msg.timestamp = (uint)Util.UnixTimeSinceEpoch();
+
             //if (client != null)
             //{
                 msg.fromAgentName = m_host.Name;//client.FirstName + " " + client.LastName;// fromAgentName;
@@ -3123,12 +3423,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 msg.message = message.Substring(0, 1024);
             else
                 msg.message = message;
-            msg.dialog = (byte)19; // messgage from script ??? // dialog;
+            msg.dialog = (byte)19; // MessageFromObject
             msg.fromGroup = false;// fromGroup;
             msg.offline = (byte)0; //offline;
-            msg.ParentEstateID = 0; //ParentEstateID;
+            msg.ParentEstateID = World.RegionInfo.EstateSettings.EstateID;
             msg.Position = new Vector3(m_host.AbsolutePosition);
-            msg.RegionID = World.RegionInfo.RegionID.Guid;//RegionID.Guid;
+            msg.RegionID = World.RegionInfo.RegionID.Guid;
             msg.binaryBucket 
                 = Util.StringToBytes256(
                     "{0}/{1}/{2}/{3}", 
@@ -3156,7 +3456,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
 
             emailModule.SendEmail(m_host.UUID, address, subject, message);
-            ScriptSleep(20000);
+            ScriptSleep(15000);
         }
 
         public void llGetNextEmail(string address, string subject)
@@ -3411,15 +3711,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 int implicitPerms = ScriptBaseClass.PERMISSION_TAKE_CONTROLS |
                         ScriptBaseClass.PERMISSION_TRIGGER_ANIMATION |
                         ScriptBaseClass.PERMISSION_CONTROL_CAMERA |
+                        ScriptBaseClass.PERMISSION_TRACK_CAMERA |
                         ScriptBaseClass.PERMISSION_ATTACH;
 
                 if ((perm & (~implicitPerms)) == 0) // Requested only implicit perms
                 {
-                    lock (m_host.TaskInventory)
-                    {
-                        m_host.TaskInventory[m_itemID].PermsGranter = agentID;
-                        m_host.TaskInventory[m_itemID].PermsMask = perm;
-                    }
+                    m_host.TaskInventory.LockItemsForWrite(true);
+                    m_host.TaskInventory[m_itemID].PermsGranter = agentID;
+                    m_host.TaskInventory[m_itemID].PermsMask = perm;
+                    m_host.TaskInventory.LockItemsForWrite(false);
 
                     m_ScriptEngine.PostScriptEvent(m_itemID, new EventParams(
                             "run_time_permissions", new Object[] {
@@ -3429,28 +3729,44 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     return;
                 }
             }
-            else if (m_host.SitTargetAvatar == agentID) // Sitting avatar
+            else
             {
-                // When agent is sitting, certain permissions are implicit if requested from sitting agent
-                int implicitPerms = ScriptBaseClass.PERMISSION_TRIGGER_ANIMATION |
-                    ScriptBaseClass.PERMISSION_CONTROL_CAMERA |
-                    ScriptBaseClass.PERMISSION_TRACK_CAMERA |
-                    ScriptBaseClass.PERMISSION_TAKE_CONTROLS;
+                bool sitting = false;
+                if (m_host.SitTargetAvatar == agentID)
+                {
+                    sitting = true;
+                }
+                else
+                {
+                    foreach (SceneObjectPart p in m_host.ParentGroup.Parts)
+                    {
+                        if (p.SitTargetAvatar == agentID)
+                            sitting = true;
+                    }
+                }
 
-                if ((perm & (~implicitPerms)) == 0) // Requested only implicit perms
+                if (sitting)
                 {
-                    lock (m_host.TaskInventory)
+                    // When agent is sitting, certain permissions are implicit if requested from sitting agent
+                    int implicitPerms = ScriptBaseClass.PERMISSION_TRIGGER_ANIMATION |
+                        ScriptBaseClass.PERMISSION_CONTROL_CAMERA |
+                        ScriptBaseClass.PERMISSION_TRACK_CAMERA |
+                        ScriptBaseClass.PERMISSION_TAKE_CONTROLS;
+
+                    if ((perm & (~implicitPerms)) == 0) // Requested only implicit perms
                     {
+                        m_host.TaskInventory.LockItemsForWrite(true);
                         m_host.TaskInventory[m_itemID].PermsGranter = agentID;
                         m_host.TaskInventory[m_itemID].PermsMask = perm;
-                    }
+                        m_host.TaskInventory.LockItemsForWrite(false);
 
-                    m_ScriptEngine.PostScriptEvent(m_itemID, new EventParams(
-                            "run_time_permissions", new Object[] {
-                            new LSL_Integer(perm) },
-                            new DetectParams[0]));
+                        m_ScriptEngine.PostScriptEvent(m_itemID, new EventParams(
+                                "run_time_permissions", new Object[] {
+                                new LSL_Integer(perm) },
+                                new DetectParams[0]));
 
-                    return;
+                        return;
+                    }
                 }
             }
 
@@ -3464,11 +3780,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                 if (!m_waitingForScriptAnswer)
                 {
-                    lock (m_host.TaskInventory)
-                    {
-                        m_host.TaskInventory[m_itemID].PermsGranter = agentID;
-                        m_host.TaskInventory[m_itemID].PermsMask = 0;
-                    }
+                    m_host.TaskInventory.LockItemsForWrite(true);
+                    m_host.TaskInventory[m_itemID].PermsGranter = agentID;
+                    m_host.TaskInventory[m_itemID].PermsMask = 0;
+                    m_host.TaskInventory.LockItemsForWrite(false);
 
                     presence.ControllingClient.OnScriptAnswer += handleScriptAnswer;
                     m_waitingForScriptAnswer=true;
@@ -3498,11 +3813,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if ((answer & ScriptBaseClass.PERMISSION_TAKE_CONTROLS) == 0)
                 llReleaseControls();
 
-            lock (m_host.TaskInventory)
-            {
-                m_host.TaskInventory[m_itemID].PermsMask = answer;
-            }
-
+            m_host.TaskInventory.LockItemsForWrite(true);
+            m_host.TaskInventory[m_itemID].PermsMask = answer;
+            m_host.TaskInventory.LockItemsForWrite(false);
+            
             m_ScriptEngine.PostScriptEvent(m_itemID, new EventParams(
                     "run_time_permissions", new Object[] {
                     new LSL_Integer(answer) },
@@ -3545,14 +3859,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llSetLinkColor(int linknumber, LSL_Vector color, int face)
         {
             List<SceneObjectPart> parts = GetLinkParts(linknumber);
-
-            foreach (SceneObjectPart part in parts)
-                part.SetFaceColor(new Vector3((float)color.x, (float)color.y, (float)color.z), face);
+            if (parts.Count > 0)
+            {
+                try
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = true;
+                    foreach (SceneObjectPart part in parts)
+                        part.SetFaceColor(new Vector3((float)color.x, (float)color.y, (float)color.z), face);
+                }
+                finally
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = false;
+                }
+            }
         }
 
         public void llCreateLink(string target, int parent)
         {
             m_host.AddScriptLPS(1);
+
             UUID targetID;
 
             if (!UUID.TryParse(target, out targetID))
@@ -3660,10 +3985,22 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 // Restructuring Multiple Prims.
                 List<SceneObjectPart> parts = new List<SceneObjectPart>(parentPrim.Parts);
                 parts.Remove(parentPrim.RootPart);
-                foreach (SceneObjectPart part in parts)
+                if (parts.Count > 0)
                 {
-                    parentPrim.DelinkFromGroup(part.LocalId, true);
+                    try
+                    {
+                        parts[0].ParentGroup.areUpdatesSuspended = true;
+                        foreach (SceneObjectPart part in parts)
+                        {
+                            parentPrim.DelinkFromGroup(part.LocalId, true);
+                        }
+                    }
+                    finally
+                    {
+                        parts[0].ParentGroup.areUpdatesSuspended = false;
+                    }
                 }
+
                 parentPrim.HasGroupChanged = true;
                 parentPrim.ScheduleGroupForFullUpdate();
                 parentPrim.TriggerScriptChangedEvent(Changed.LINK);
@@ -3672,12 +4009,22 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 {
                     SceneObjectPart newRoot = parts[0];
                     parts.Remove(newRoot);
-                    foreach (SceneObjectPart part in parts)
+
+                    try
                     {
-                        // Required for linking
-                        part.ClearUpdateSchedule();
-                        newRoot.ParentGroup.LinkToGroup(part.ParentGroup);
+                        parts[0].ParentGroup.areUpdatesSuspended = true;
+                        foreach (SceneObjectPart part in parts)
+                        {
+                            part.ClearUpdateSchedule();
+                            newRoot.ParentGroup.LinkToGroup(part.ParentGroup);
+                        }
                     }
+                    finally
+                    {
+                        parts[0].ParentGroup.areUpdatesSuspended = false;
+                    }                    
+                    
+                    
                     newRoot.ParentGroup.HasGroupChanged = true;
                     newRoot.ParentGroup.ScheduleGroupForFullUpdate();
                 }
@@ -3697,6 +4044,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llBreakAllLinks()
         {
             m_host.AddScriptLPS(1);
+
+            TaskInventoryItem item = GetSelfInventoryItem();
+             
+            if ((item.PermsMask & ScriptBaseClass.PERMISSION_CHANGE_LINKS) == 0
+                && !m_automaticLinkPermission)
+            {
+                ShoutError("Script trying to link but PERMISSION_CHANGE_LINKS permission not set!");
+                return;
+            }
+
             SceneObjectGroup parentPrim = m_host.ParentGroup;
             if (parentPrim.AttachmentPoint != 0)
                 return; // Fail silently if attached
@@ -3716,25 +4073,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_String llGetLinkKey(int linknum)
         {
             m_host.AddScriptLPS(1);
-            List<UUID> keytable = new List<UUID>();
-            // parse for sitting avatare-uuids
-            World.ForEachRootScenePresence(delegate(ScenePresence presence)
-            {
-                if (presence.ParentID != 0 && m_host.ParentGroup.ContainsPart(presence.ParentID))
-                    keytable.Add(presence.UUID);
-            });
-
-            int totalprims = m_host.ParentGroup.PrimCount + keytable.Count;
-            if (linknum > m_host.ParentGroup.PrimCount && linknum <= totalprims)
-            {
-                return keytable[totalprims - linknum].ToString();
-            }
-
-            if (linknum == 1 && m_host.ParentGroup.PrimCount == 1 && keytable.Count == 1)
-            {
-                return m_host.UUID.ToString();
-            }
-
             SceneObjectPart part = m_host.ParentGroup.GetLinkNumPart(linknum);
             if (part != null)
             {
@@ -3742,6 +4080,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
             else
             {
+                if (linknum > m_host.ParentGroup.PrimCount || (linknum == 1 && m_host.ParentGroup.PrimCount == 1))
+                {
+                    linknum -= (m_host.ParentGroup.PrimCount) + 1;
+
+                    if (linknum < 0)
+                        return UUID.Zero.ToString();
+
+                    List<ScenePresence> avatars = GetLinkAvatars(ScriptBaseClass.LINK_SET);
+                    if (avatars.Count > linknum)
+                    {
+                        return avatars[linknum].UUID.ToString();
+                    }
+                }
                 return UUID.Zero.ToString();
             }
         }
@@ -3841,17 +4192,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
             int count = 0;
 
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Type == type || type == -1)
                 {
-                    if (inv.Value.Type == type || type == -1)
-                    {
-                        count = count + 1;
-                    }
+                    count = count + 1;
                 }
             }
-
+            
+            m_host.TaskInventory.LockItemsForRead(false);
             return count;
         }
 
@@ -3860,16 +4210,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
             ArrayList keys = new ArrayList();
 
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Type == type || type == -1)
                 {
-                    if (inv.Value.Type == type || type == -1)
-                    {
-                        keys.Add(inv.Value.Name);
-                    }
+                    keys.Add(inv.Value.Name);
                 }
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             if (keys.Count == 0)
             {
@@ -3906,25 +4255,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
 
             // move the first object found with this inventory name
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == inventory)
                 {
-                    if (inv.Value.Name == inventory)
-                    {
-                        found = true;
-                        objId = inv.Key;
-                        assetType = inv.Value.Type;
-                        objName = inv.Value.Name;
-                        break;
-                    }
+                    found = true;
+                    objId = inv.Key;
+                    assetType = inv.Value.Type;
+                    objName = inv.Value.Name;
+                    break;
                 }
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             if (!found)
             {
                 llSay(0, String.Format("Could not find object '{0}'", inventory));
-                throw new Exception(String.Format("The inventory object '{0}' could not be found", inventory));
+                return;
+//                throw new Exception(String.Format("The inventory object '{0}' could not be found", inventory));
             }
 
             // check if destination is an object
@@ -3950,48 +4299,68 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         return;
                     }
                 }
+
                 // destination is an avatar
                 InventoryItemBase agentItem = World.MoveTaskInventoryItem(destId, UUID.Zero, m_host, objId);
 
                 if (agentItem == null)
                     return;
 
-                byte[] bucket = new byte[17];
+                byte[] bucket = new byte[1];
                 bucket[0] = (byte)assetType;
-                byte[] objBytes = agentItem.ID.GetBytes();
-                Array.Copy(objBytes, 0, bucket, 1, 16);
+                //byte[] objBytes = agentItem.ID.GetBytes();
+                //Array.Copy(objBytes, 0, bucket, 1, 16);
 
                 GridInstantMessage msg = new GridInstantMessage(World,
-                        m_host.UUID, m_host.Name+", an object owned by "+
-                        resolveName(m_host.OwnerID)+",", destId,
+                        m_host.OwnerID, m_host.Name, destId,
                         (byte)InstantMessageDialog.TaskInventoryOffered,
-                        false, objName+"\n"+m_host.Name+" is located at "+
+                        false, objName+". "+m_host.Name+" is located at "+
                         World.RegionInfo.RegionName+" "+
                         m_host.AbsolutePosition.ToString(),
                         agentItem.ID, true, m_host.AbsolutePosition,
                         bucket);
-                if (m_TransferModule != null)
-                    m_TransferModule.SendInstantMessage(msg, delegate(bool success) {});
+
+                ScenePresence sp;
+
+                if (World.TryGetScenePresence(destId, out sp))
+                {
+                    sp.ControllingClient.SendInstantMessage(msg);
+                }
+                else
+                {
+                    if (m_TransferModule != null)
+                        m_TransferModule.SendInstantMessage(msg, delegate(bool success) {});
+                }
+                
+                //This delay should only occur when giving inventory to avatars.
                 ScriptSleep(3000);
             }
         }
 
+        [DebuggerNonUserCode]
         public void llRemoveInventory(string name)
         {
             m_host.AddScriptLPS(1);
 
-            lock (m_host.TaskInventory)
+            List<TaskInventoryItem> inv;
+            try
             {
-                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                m_host.TaskInventory.LockItemsForRead(true);
+                inv = new List<TaskInventoryItem>(m_host.TaskInventory.Values);
+            }
+            finally
+            {
+                m_host.TaskInventory.LockItemsForRead(false);
+            }
+            foreach (TaskInventoryItem item in inv)
+            {
+                if (item.Name == name)
                 {
-                    if (item.Name == name)
-                    {
-                        if (item.ItemID == m_itemID)
-                            throw new ScriptDeleteException();
-                        else
-                            m_host.Inventory.RemoveInventoryItem(item.ItemID);
-                        return;
-                    }
+                    if (item.ItemID == m_itemID)
+                        throw new ScriptDeleteException();
+                    else
+                        m_host.Inventory.RemoveInventoryItem(item.ItemID);
+                    return;
                 }
             }
         }
@@ -4026,115 +4395,122 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            UUID uuid = (UUID)id;
-            PresenceInfo pinfo = null;
-            UserAccount account;
-
-            UserInfoCacheEntry ce;
-            if (!m_userInfoCache.TryGetValue(uuid, out ce))
+            UUID uuid;
+            if (UUID.TryParse(id, out uuid))
             {
-                account = World.UserAccountService.GetUserAccount(World.RegionInfo.ScopeID, uuid);
-                if (account == null)
+                PresenceInfo pinfo = null;
+                UserAccount account;
+
+                UserInfoCacheEntry ce;
+                if (!m_userInfoCache.TryGetValue(uuid, out ce))
                 {
-                    m_userInfoCache[uuid] = null; // Cache negative
-                    return UUID.Zero.ToString();
-                }
+                    account = World.UserAccountService.GetUserAccount(World.RegionInfo.ScopeID, uuid);
+                    if (account == null)
+                    {
+                        m_userInfoCache[uuid] = null; // Cache negative
+                        return UUID.Zero.ToString();
+                    }
 
 
-                PresenceInfo[] pinfos = World.PresenceService.GetAgents(new string[] { uuid.ToString() });
-                if (pinfos != null && pinfos.Length > 0)
-                {
-                    foreach (PresenceInfo p in pinfos)
+                    PresenceInfo[] pinfos = World.PresenceService.GetAgents(new string[] { uuid.ToString() });
+                    if (pinfos != null && pinfos.Length > 0)
                     {
-                        if (p.RegionID != UUID.Zero)
+                        foreach (PresenceInfo p in pinfos)
                         {
-                            pinfo = p;
+                            if (p.RegionID != UUID.Zero)
+                            {
+                                pinfo = p;
+                            }
                         }
                     }
-                }
 
-                ce = new UserInfoCacheEntry();
-                ce.time = Util.EnvironmentTickCount();
-                ce.account = account;
-                ce.pinfo = pinfo;
-            }
-            else
-            {
-                if (ce == null)
-                    return UUID.Zero.ToString();
+                    ce = new UserInfoCacheEntry();
+                    ce.time = Util.EnvironmentTickCount();
+                    ce.account = account;
+                    ce.pinfo = pinfo;
+                    m_userInfoCache[uuid] = ce;
+                }
+                else
+                {
+                    if (ce == null)
+                        return UUID.Zero.ToString();
 
-                account = ce.account;
-                pinfo = ce.pinfo;
-            }
+                    account = ce.account;
+                    pinfo = ce.pinfo;
+                }
 
-            if (Util.EnvironmentTickCount() < ce.time || (Util.EnvironmentTickCount() - ce.time) >= 20000)
-            {
-                PresenceInfo[] pinfos = World.PresenceService.GetAgents(new string[] { uuid.ToString() });
-                if (pinfos != null && pinfos.Length > 0)
+                if (Util.EnvironmentTickCount() < ce.time || (Util.EnvironmentTickCount() - ce.time) >= 20000)
                 {
-                    foreach (PresenceInfo p in pinfos)
+                    PresenceInfo[] pinfos = World.PresenceService.GetAgents(new string[] { uuid.ToString() });
+                    if (pinfos != null && pinfos.Length > 0)
                     {
-                        if (p.RegionID != UUID.Zero)
+                        foreach (PresenceInfo p in pinfos)
                         {
-                            pinfo = p;
+                            if (p.RegionID != UUID.Zero)
+                            {
+                                pinfo = p;
+                            }
                         }
                     }
-                }
-                else
-                    pinfo = null;
+                    else
+                        pinfo = null;
 
-                ce.time = Util.EnvironmentTickCount();
-                ce.pinfo = pinfo;
-            }
+                    ce.time = Util.EnvironmentTickCount();
+                    ce.pinfo = pinfo;
+                }
 
-            string reply = String.Empty;
+                string reply = String.Empty;
 
-            switch (data)
-            {
-            case 1: // DATA_ONLINE (0|1)
-                if (pinfo != null && pinfo.RegionID != UUID.Zero)
-                    reply = "1";
-                else
-                    reply = "0";
-                break;
-            case 2: // DATA_NAME (First Last)
-                reply = account.FirstName + " " + account.LastName;
-                break;
-            case 3: // DATA_BORN (YYYY-MM-DD)
-                DateTime born = new DateTime(1970, 1, 1, 0, 0, 0, 0);
-                born = born.AddSeconds(account.Created);
-                reply = born.ToString("yyyy-MM-dd");
-                break;
-            case 4: // DATA_RATING (0,0,0,0,0,0)
-                reply = "0,0,0,0,0,0";
-                break;
-            case 7: // DATA_USERLEVEL (integer)
-                reply = account.UserLevel.ToString();
-                break;
-            case 8: // DATA_PAYINFO (0|1|2|3)
-                reply = "0";
-                break;
-            default:
-                return UUID.Zero.ToString(); // Raise no event
-            }
+                switch (data)
+                {
+                    case 1: // DATA_ONLINE (0|1)
+                        if (pinfo != null && pinfo.RegionID != UUID.Zero)
+                            reply = "1";
+                        else
+                            reply = "0";
+                        break;
+                    case 2: // DATA_NAME (First Last)
+                        reply = account.FirstName + " " + account.LastName;
+                        break;
+                    case 3: // DATA_BORN (YYYY-MM-DD)
+                        DateTime born = new DateTime(1970, 1, 1, 0, 0, 0, 0);
+                        born = born.AddSeconds(account.Created);
+                        reply = born.ToString("yyyy-MM-dd");
+                        break;
+                    case 4: // DATA_RATING (0,0,0,0,0,0)
+                        reply = "0,0,0,0,0,0";
+                        break;
+                    case 8: // DATA_PAYINFO (0|1|2|3)
+                        reply = "0";
+                        break;
+                    default:
+                        return UUID.Zero.ToString(); // Raise no event
+                }
 
-            UUID rq = UUID.Random();
+                UUID rq = UUID.Random();
 
-            UUID tid = AsyncCommands.
-                DataserverPlugin.RegisterRequest(m_localID,
-                                             m_itemID, rq.ToString());
+                UUID tid = AsyncCommands.
+                    DataserverPlugin.RegisterRequest(m_localID,
+                                                 m_itemID, rq.ToString());
 
-            AsyncCommands.
-            DataserverPlugin.DataserverReply(rq.ToString(), reply);
+                AsyncCommands.
+                DataserverPlugin.DataserverReply(rq.ToString(), reply);
 
-            ScriptSleep(100);
-            return tid.ToString();
+                ScriptSleep(100);
+                return tid.ToString();
+            }
+            else
+            {
+                ShoutError("Invalid UUID passed to llRequestAgentData.");
+            }
+            return "";
         }
 
         public LSL_String llRequestInventoryData(string name)
         {
             m_host.AddScriptLPS(1);
 
+            //Clone is thread safe
             TaskInventoryDictionary itemDictionary = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
 
             foreach (TaskInventoryItem item in itemDictionary.Values)
@@ -4186,19 +4562,64 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (UUID.TryParse(agent, out agentId))
             {
                 ScenePresence presence = World.GetScenePresence(agentId);
-                if (presence != null)
+                if (presence != null && presence.PresenceType != PresenceType.Npc)
                 {
+                    // agent must not be a god
+                    if (presence.UserLevel >= 200) return;
+
                     // agent must be over the owners land
                     if (m_host.OwnerID == World.LandChannel.GetLandObject(
                             presence.AbsolutePosition.X, presence.AbsolutePosition.Y).LandData.OwnerID)
                     {
-                        World.TeleportClientHome(agentId, presence.ControllingClient);
+                        if (!World.TeleportClientHome(agentId, presence.ControllingClient))
+                        {
+                            // They can't be teleported home for some reason
+                            GridRegion regionInfo = World.GridService.GetRegionByUUID(UUID.Zero, new UUID("2b02daac-e298-42fa-9a75-f488d37896e6"));
+                            if (regionInfo != null)
+                            {
+                                World.RequestTeleportLocation(
+                                    presence.ControllingClient, regionInfo.RegionHandle, new Vector3(128, 128, 23), Vector3.Zero,
+                                    (uint)(Constants.TeleportFlags.SetLastToTarget | Constants.TeleportFlags.ViaHome));
+                            }
+                        }
                     }
                 }
             }
             ScriptSleep(5000);
         }
 
+        public void llTeleportAgent(string agent, string simname, LSL_Vector pos, LSL_Vector lookAt)
+        {
+            m_host.AddScriptLPS(1);
+            UUID agentId = new UUID();
+            if (UUID.TryParse(agent, out agentId))
+            {
+                ScenePresence presence = World.GetScenePresence(agentId);
+                if (presence != null && presence.PresenceType != PresenceType.Npc)
+                {
+                    // agent must not be a god
+                    if (presence.GodLevel >= 200) return;
+
+                    if (simname == String.Empty)
+                        simname = World.RegionInfo.RegionName;
+
+                    // agent must be over the owners land
+                    if (m_host.OwnerID == World.LandChannel.GetLandObject(
+                            presence.AbsolutePosition.X, presence.AbsolutePosition.Y).LandData.OwnerID)
+                    {
+                        World.RequestTeleportLocation(presence.ControllingClient, simname, new Vector3((float)pos.x, (float)pos.y, (float)pos.z), new Vector3((float)lookAt.x, (float)lookAt.y, (float)lookAt.z), (uint)TeleportFlags.ViaLocation);
+                    }
+                    else // or must be wearing the prim
+                    {
+                        if (m_host.ParentGroup.AttachmentPoint != 0 && m_host.OwnerID == presence.UUID)
+                        {
+                            World.RequestTeleportLocation(presence.ControllingClient, simname, new Vector3((float)pos.x, (float)pos.y, (float)pos.z), new Vector3((float)lookAt.x, (float)lookAt.y, (float)lookAt.z), (uint)TeleportFlags.ViaLocation);
+                        }
+                    }
+                }
+            }
+        }
+
         public void llTextBox(string agent, string message, int chatChannel)
         {
             IDialogModule dm = World.RequestModuleInterface<IDialogModule>();
@@ -4210,7 +4631,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             UUID av = new UUID();
             if (!UUID.TryParse(agent,out av))
             {
-                LSLError("First parameter to llDialog needs to be a key");
+                //LSLError("First parameter to llDialog needs to be a key");
                 return;
             }
 
@@ -4247,17 +4668,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             UUID soundId = UUID.Zero;
             if (!UUID.TryParse(impact_sound, out soundId))
             {
-                lock (m_host.TaskInventory)
+                m_host.TaskInventory.LockItemsForRead(true);
+                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
                 {
-                    foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                    if (item.Type == (int)AssetType.Sound && item.Name == impact_sound)
                     {
-                        if (item.Type == (int)AssetType.Sound && item.Name == impact_sound)
-                        {
-                            soundId = item.AssetID;
-                            break;
-                        }
+                        soundId = item.AssetID;
+                        break;
                     }
                 }
+                m_host.TaskInventory.LockItemsForRead(false);
             }
             m_host.CollisionSound = soundId;
             m_host.CollisionSoundVolume = (float)impact_volume;
@@ -4297,6 +4717,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             UUID partItemID;
             foreach (SceneObjectPart part in parts)
             {
+                //Clone is thread safe
                 TaskInventoryDictionary itemsDictionary = (TaskInventoryDictionary)part.TaskInventory.Clone();
 
                 foreach (TaskInventoryItem item in itemsDictionary.Values)
@@ -4430,7 +4851,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 float distance = (PusheePos - m_host.AbsolutePosition).Length();
                 float distance_term = distance * distance * distance; // Script Energy
-                float pusher_mass = m_host.GetMass();
+                // use total object mass and not part
+                float pusher_mass = m_host.ParentGroup.GetMass();
 
                 float PUSH_ATTENUATION_DISTANCE = 17f;
                 float PUSH_ATTENUATION_SCALE = 5f;
@@ -4671,23 +5093,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                 {
-                    if (inv.Value.Name == name)
+                    if ((inv.Value.CurrentPermissions & (uint)(PermissionMask.Copy | PermissionMask.Transfer | PermissionMask.Modify)) == (uint)(PermissionMask.Copy | PermissionMask.Transfer | PermissionMask.Modify))
                     {
-                        if ((inv.Value.CurrentPermissions & (uint)(PermissionMask.Copy | PermissionMask.Transfer | PermissionMask.Modify)) == (uint)(PermissionMask.Copy | PermissionMask.Transfer | PermissionMask.Modify))
-                        {
-                            return inv.Value.AssetID.ToString();
-                        }
-                        else
-                        {
-                            return UUID.Zero.ToString();
-                        }
+                        m_host.TaskInventory.LockItemsForRead(false);
+                        return inv.Value.AssetID.ToString();
+                    }
+                    else
+                    {
+                        m_host.TaskInventory.LockItemsForRead(false);
+                        return UUID.Zero.ToString();
                     }
                 }
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             return UUID.Zero.ToString();
         }
@@ -4821,7 +5244,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Vector llGetCenterOfMass()
         {
             m_host.AddScriptLPS(1);
-            Vector3 center = m_host.GetGeometricCenter();
+            Vector3 center = m_host.GetCenterOfMass();
             return new LSL_Vector(center.X,center.Y,center.Z);
         }
 
@@ -4840,14 +5263,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            if (src == null)
-            {
-                return 0;
-            }
-            else
-            {
-                return src.Length;
-            }
+            return src.Length;
         }
 
         public LSL_Integer llList2Integer(LSL_List src, int index)
@@ -4893,7 +5309,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 else if (src.Data[index] is LSL_Float)
                     return Convert.ToDouble(((LSL_Float) src.Data[index]).value);
                 else if (src.Data[index] is LSL_String)
-                    return Convert.ToDouble(((LSL_String) src.Data[index]).m_string);
+                {
+                    string str = ((LSL_String) src.Data[index]).m_string;
+                    Match m = Regex.Match(str, "^\\s*(-?\\+?[,0-9]+\\.?[0-9]*)");
+                    if (m != Match.Empty)
+                    {
+                        str = m.Value;
+                        double d = 0.0;
+                        if (!Double.TryParse(str, out d))
+                            return 0.0;
+
+                        return d;
+                    }
+                    return 0.0;
+                }
                 return Convert.ToDouble(src.Data[index]);
             }
             catch (FormatException)
@@ -5166,7 +5595,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     }
                 }
             }
-            else {
+            else
+            {
                 object[] array = new object[src.Length];
                 Array.Copy(src.Data, 0, array, 0, src.Length);
                 result = new LSL_List(array);
@@ -5273,7 +5703,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Integer llGetRegionAgentCount()
         {
             m_host.AddScriptLPS(1);
-            return new LSL_Integer(World.GetRootAgentCount());
+
+            int count = 0;
+            World.ForEachRootScenePresence(delegate(ScenePresence sp) {
+                count++;
+            });
+
+            return new LSL_Integer(count);
         }
 
         public LSL_Vector llGetRegionCorner()
@@ -5553,6 +5989,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                  flags |= ScriptBaseClass.AGENT_SITTING;
              }
 
+             if (agent.Appearance.VisualParams[(int)AvatarAppearance.VPElement.SHAPE_MALE] > 0)
+             {
+                 flags |= ScriptBaseClass.AGENT_MALE;
+             }
+
             return flags;
         }
 
@@ -5615,10 +6056,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
 
             List<SceneObjectPart> parts = GetLinkParts(linknumber);
-
-            foreach (var part in parts)
+            if (parts.Count > 0)
             {
-                SetTextureAnim(part, mode, face, sizex, sizey, start, length, rate);
+                try
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = true;
+                    foreach (var part in parts)
+                    {
+                        SetTextureAnim(part, mode, face, sizex, sizey, start, length, rate);
+                    }
+                }
+                finally
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = false;
+                }
             }
         }
 
@@ -5670,13 +6121,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                     if (m_host.OwnerID == land.LandData.OwnerID)
                     {
-                        World.TeleportClientHome(agentID, presence.ControllingClient);
+                        Vector3 pos = World.GetNearestAllowedPosition(presence, land);
+                        presence.TeleportWithMomentum(pos, null);
+                        presence.ControllingClient.SendAlertMessage("You have been ejected from this land");
                     }
                 }
             }
             ScriptSleep(5000);
         }
 
+        public LSL_List llParseString2List(string str, LSL_List separators, LSL_List in_spacers)
+        {
+            return ParseString2List(str, separators, in_spacers, false);
+        }
+
         public LSL_Integer llOverMyLand(string id)
         {
             m_host.AddScriptLPS(1);
@@ -5741,8 +6199,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             UUID agentId = new UUID();
             if (!UUID.TryParse(agent, out agentId))
                 return new LSL_Integer(0);
+            if (agentId == m_host.GroupID)
+                return new LSL_Integer(1);
             ScenePresence presence = World.GetScenePresence(agentId);
-            if (presence == null || presence.IsChildAgent) // Return flase for child agents
+            if (presence == null || presence.IsChildAgent) // Return false for child agents
                 return new LSL_Integer(0);
             IClientAPI client = presence.ControllingClient;
             if (m_host.GroupID == client.ActiveGroupId)
@@ -5877,7 +6337,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return m_host.ParentGroup.AttachmentPoint;
         }
 
-        public LSL_Integer llGetFreeMemory()
+        public virtual LSL_Integer llGetFreeMemory()
         {
             m_host.AddScriptLPS(1);
             // Make scripts designed for LSO happy
@@ -5994,7 +6454,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             SetParticleSystem(m_host, rules);
         }
 
-        private void SetParticleSystem(SceneObjectPart part, LSL_List rules) {
+        private void SetParticleSystem(SceneObjectPart part, LSL_List rules)
+        {
 
 
             if (rules.Length == 0)
@@ -6188,14 +6649,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         protected UUID GetTaskInventoryItem(string name)
         {
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                 {
-                    if (inv.Value.Name == name)
-                        return inv.Key;
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    return inv.Key;
                 }
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             return UUID.Zero;
         }
@@ -6233,16 +6696,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (folderID == UUID.Zero)
                 return;
 
-            byte[] bucket = new byte[17];
+            byte[] bucket = new byte[1];
             bucket[0] = (byte)AssetType.Folder;
-            byte[] objBytes = folderID.GetBytes();
-            Array.Copy(objBytes, 0, bucket, 1, 16);
+            //byte[] objBytes = folderID.GetBytes();
+            //Array.Copy(objBytes, 0, bucket, 1, 16);
 
             GridInstantMessage msg = new GridInstantMessage(World,
-                    m_host.UUID, m_host.Name+", an object owned by "+
-                    resolveName(m_host.OwnerID)+",", destID,
-                    (byte)InstantMessageDialog.InventoryOffered,
-                    false, category+"\n"+m_host.Name+" is located at "+
+                    m_host.OwnerID, m_host.Name, destID,
+                    (byte)InstantMessageDialog.TaskInventoryOffered,
+                    false, category+". "+m_host.Name+" is located at "+
                     World.RegionInfo.RegionName+" "+
                     m_host.AbsolutePosition.ToString(),
                     folderID, true, m_host.AbsolutePosition,
@@ -6480,13 +6942,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             UUID av = new UUID();
             if (!UUID.TryParse(avatar,out av))
             {
-                LSLError("First parameter to llDialog needs to be a key");
+                //LSLError("First parameter to llDialog needs to be a key");
                 return;
             }
             if (buttons.Length < 1)
             {
-                LSLError("No less than 1 button can be shown");
-                return;
+                buttons.Add("OK");
             }
             if (buttons.Length > 12)
             {
@@ -6503,7 +6964,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 }
                 if (buttons.Data[i].ToString().Length > 24)
                 {
-                    LSLError("button label cannot be longer than 24 characters");
+                    llWhisper(ScriptBaseClass.DEBUG_CHANNEL, "button label cannot be longer than 24 characters");
                     return;
                 }
                 buts[i] = buttons.Data[i].ToString();
@@ -6562,22 +7023,23 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
 
             // copy the first script found with this inventory name
-            lock (m_host.TaskInventory)
+            TaskInventoryItem scriptItem = null;
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                 {
-                    if (inv.Value.Name == name)
+                    // make sure the object is a script
+                    if (10 == inv.Value.Type)
                     {
-                        // make sure the object is a script
-                        if (10 == inv.Value.Type)
-                        {
-                            found = true;
-                            srcId = inv.Key;
-                            break;
-                        }
+                        found = true;
+                        srcId = inv.Key;
+                        scriptItem = inv.Value;
+                        break;
                     }
                 }
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             if (!found)
             {
@@ -6585,9 +7047,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return;
             }
 
-            // the rest of the permission checks are done in RezScript, so check the pin there as well
-            World.RezScriptFromPrim(srcId, m_host, destId, pin, running, start_param);
+            SceneObjectPart dest = World.GetSceneObjectPart(destId);
+            if (dest != null)
+            {
+                if ((scriptItem.BasePermissions & (uint)PermissionMask.Transfer) != 0 || dest.ParentGroup.RootPart.OwnerID == m_host.ParentGroup.RootPart.OwnerID)
+                {
+                    // the rest of the permission checks are done in RezScript, so check the pin there as well
+                    World.RezScriptFromPrim(srcId, m_host, destId, pin, running, start_param);
 
+                    if ((scriptItem.BasePermissions & (uint)PermissionMask.Copy) == 0)
+                        m_host.Inventory.RemoveInventoryItem(srcId);
+                }
+            }
             // this will cause the delay even if the script pin or permissions were wrong - seems ok
             ScriptSleep(3000);
         }
@@ -6650,19 +7121,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_String llMD5String(string src, int nonce)
         {
             m_host.AddScriptLPS(1);
-            return Util.Md5Hash(String.Format("{0}:{1}", src, nonce.ToString()));
+            return Util.Md5Hash(String.Format("{0}:{1}", src, nonce.ToString()), Encoding.UTF8);
         }
 
         public LSL_String llSHA1String(string src)
         {
             m_host.AddScriptLPS(1);
-            return Util.SHA1Hash(src).ToLower();
+            return Util.SHA1Hash(src, Encoding.UTF8).ToLower();
         }
 
         protected ObjectShapePacket.ObjectDataBlock SetPrimitiveBlockShapeParams(SceneObjectPart part, int holeshape, LSL_Vector cut, float hollow, LSL_Vector twist, byte profileshape, byte pathcurve)
         {
             float tempFloat;                                    // Use in float expressions below to avoid byte cast precision issues.
             ObjectShapePacket.ObjectDataBlock shapeBlock = new ObjectShapePacket.ObjectDataBlock();
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return shapeBlock;
 
             if (holeshape != (int)ScriptBaseClass.PRIM_HOLE_DEFAULT &&
                 holeshape != (int)ScriptBaseClass.PRIM_HOLE_CIRCLE &&
@@ -6767,6 +7240,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         // Prim type box, cylinder and prism.
         protected void SetPrimitiveShapeParams(SceneObjectPart part, int holeshape, LSL_Vector cut, float hollow, LSL_Vector twist, LSL_Vector taper_b, LSL_Vector topshear, byte profileshape, byte pathcurve)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             float tempFloat;                                    // Use in float expressions below to avoid byte cast precision issues.
             ObjectShapePacket.ObjectDataBlock shapeBlock;
 
@@ -6820,6 +7296,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         // Prim type sphere.
         protected void SetPrimitiveShapeParams(SceneObjectPart part, int holeshape, LSL_Vector cut, float hollow, LSL_Vector twist, LSL_Vector dimple, byte profileshape, byte pathcurve)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             ObjectShapePacket.ObjectDataBlock shapeBlock;
 
             shapeBlock = SetPrimitiveBlockShapeParams(part, holeshape, cut, hollow, twist, profileshape, pathcurve);
@@ -6861,6 +7340,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         // Prim type torus, tube and ring.
         protected void SetPrimitiveShapeParams(SceneObjectPart part, int holeshape, LSL_Vector cut, float hollow, LSL_Vector twist, LSL_Vector holesize, LSL_Vector topshear, LSL_Vector profilecut, LSL_Vector taper_a, float revolutions, float radiusoffset, float skew, byte profileshape, byte pathcurve)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             float tempFloat;                                    // Use in float expressions below to avoid byte cast precision issues.
             ObjectShapePacket.ObjectDataBlock shapeBlock;
 
@@ -6996,6 +7478,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         // Prim type sculpt.
         protected void SetPrimitiveShapeParams(SceneObjectPart part, string map, int type, byte pathcurve)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             ObjectShapePacket.ObjectDataBlock shapeBlock = new ObjectShapePacket.ObjectDataBlock();
             UUID sculptId;
 
@@ -7020,7 +7505,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 type != (ScriptBaseClass.PRIM_SCULPT_TYPE_TORUS | flag))
             {
                 // default
-                type = (int)ScriptBaseClass.PRIM_SCULPT_TYPE_SPHERE;
+                type = type | (int)ScriptBaseClass.PRIM_SCULPT_TYPE_SPHERE;
             }
 
             part.Shape.SetSculptProperties((byte)type, sculptId);
@@ -7036,32 +7521,149 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             ScriptSleep(200);
         }
 
-        public void llSetLinkPrimitiveParams(int linknumber, LSL_List rules)
+        public void llSetLinkPrimitiveParamsFast(int linknumber, LSL_List rules)
         {
             m_host.AddScriptLPS(1);
 
             setLinkPrimParams(linknumber, rules);
+        }
 
-            ScriptSleep(200);
+        private void setLinkPrimParams(int linknumber, LSL_List rules)
+        {
+            List<SceneObjectPart> parts = GetLinkParts(linknumber);
+            List<ScenePresence> avatars = GetLinkAvatars(linknumber);
+            if (parts.Count>0)
+            {
+                try
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = true;
+                    foreach (SceneObjectPart part in parts)
+                        SetPrimParams(part, rules);
+                }
+                finally
+                {
+                    parts[0].ParentGroup.areUpdatesSuspended = false;
+                }
+            }
+            if (avatars.Count > 0)
+            {
+                foreach (ScenePresence avatar in avatars)
+                    SetPrimParams(avatar, rules);
+            }
         }
 
-        public void llSetLinkPrimitiveParamsFast(int linknumber, LSL_List rules)
+        private void SetPhysicsMaterial(SceneObjectPart part, int material_bits,
+                float material_density, float material_friction,
+                float material_restitution, float material_gravity_modifier)
         {
-            m_host.AddScriptLPS(1);
+            ExtraPhysicsData physdata = new ExtraPhysicsData();
+            physdata.PhysShapeType = (PhysShapeType)part.PhysicsShapeType;
+            physdata.Density = part.Density;
+            physdata.Friction = part.Friction;
+            physdata.Bounce = part.Bounciness;
+            physdata.GravitationModifier = part.GravityModifier;
 
-            setLinkPrimParams(linknumber, rules);
+            if ((material_bits & (int)ScriptBaseClass.DENSITY) != 0)
+                physdata.Density = material_density;
+            if ((material_bits & (int)ScriptBaseClass.FRICTION) != 0)
+                physdata.Friction = material_friction;
+            if ((material_bits & (int)ScriptBaseClass.RESTITUTION) != 0)
+                physdata.Bounce = material_restitution;
+            if ((material_bits & (int)ScriptBaseClass.GRAVITY_MULTIPLIER) != 0)
+                physdata.GravitationModifier = material_gravity_modifier;
+
+            part.UpdateExtraPhysics(physdata);
         }
 
-        protected void setLinkPrimParams(int linknumber, LSL_List rules)
+        public void llSetPhysicsMaterial(int material_bits,
+                float material_gravity_modifier, float material_restitution,
+                float material_friction, float material_density)
         {
-            List<SceneObjectPart> parts = GetLinkParts(linknumber);
+            SetPhysicsMaterial(m_host, material_bits, material_density, material_friction, material_restitution, material_gravity_modifier);
+        }
 
-            foreach (SceneObjectPart part in parts)
-                SetPrimParams(part, rules);
+        public void llSetLinkPrimitiveParams(int linknumber, LSL_List rules)
+        {
+            llSetLinkPrimitiveParamsFast(linknumber, rules);
+            ScriptSleep(200);
+        }
+
+        protected void SetPrimParams(ScenePresence av, LSL_List rules)
+        {
+            //This is a special version of SetPrimParams to deal with avatars which are sat on the linkset.
+            //We only support PRIM_POSITION and PRIM_ROTATION
+
+            int idx = 0;
+
+            while (idx < rules.Length)
+            {
+                int code = rules.GetLSLIntegerItem(idx++);
+
+                int remain = rules.Length - idx;
+
+                switch (code)
+                {
+                    case (int)ScriptBaseClass.PRIM_POSITION:
+                        {
+                            if (remain < 1)
+                                return;
+                            LSL_Vector v;
+                            v = rules.GetVector3Item(idx++);
+
+                            SceneObjectPart part = World.GetSceneObjectPart(av.ParentID);
+                            if (part == null)
+                                break;
+
+                            LSL_Rotation localRot = ScriptBaseClass.ZERO_ROTATION;
+                            LSL_Vector localPos = ScriptBaseClass.ZERO_VECTOR;
+                            if (llGetLinkNumber() > 1)
+                            {
+                                localRot = llGetLocalRot();
+                                localPos = llGetLocalPos();
+                            }
+
+                            v -= localPos;
+                            v /= localRot;
+
+                            LSL_Vector sitOffset = (llRot2Up(new LSL_Rotation(av.Rotation.X, av.Rotation.Y, av.Rotation.Z, av.Rotation.W)) * av.Appearance.AvatarHeight * 0.02638f);
+                            
+                            v = v + 2 * sitOffset;
+
+                            av.OffsetPosition = new Vector3((float)v.x, (float)v.y, (float)v.z);
+                            av.SendAvatarDataToAllAgents();
+
+                        }
+                        break;
+
+                    case (int)ScriptBaseClass.PRIM_ROTATION:
+                        {
+                            if (remain < 1)
+                                return;
+
+                            LSL_Rotation localRot = ScriptBaseClass.ZERO_ROTATION;
+                            LSL_Vector localPos = ScriptBaseClass.ZERO_VECTOR;
+                            if (llGetLinkNumber() > 1)
+                            {
+                                localRot = llGetLocalRot();
+                                localPos = llGetLocalPos();
+                            }
+
+                            LSL_Rotation r;
+                            r = rules.GetQuaternionItem(idx++);
+                            r = r * llGetRootRotation() / localRot;
+                            av.Rotation = new Quaternion((float)r.x, (float)r.y, (float)r.z, (float)r.s);
+                            av.SendAvatarDataToAllAgents();
+                        }
+                        break;
+                }
+            }
         }
 
         protected void SetPrimParams(SceneObjectPart part, LSL_List rules)
         {
+            if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
+                return;
+
             int idx = 0;
 
             bool positionChanged = false;
@@ -7383,6 +7985,36 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                              part.ScriptSetPhysicsStatus(physics);
                              break;
 
+                        case (int)ScriptBaseClass.PRIM_PHYSICS_SHAPE_TYPE:
+                            if (remain < 1)
+                                return;
+
+                            int shape_type = rules.GetLSLIntegerItem(idx++);
+
+                            ExtraPhysicsData physdata = new ExtraPhysicsData();
+                            physdata.Density = part.Density;
+                            physdata.Bounce = part.Bounciness;
+                            physdata.GravitationModifier = part.GravityModifier;
+                            physdata.PhysShapeType = (PhysShapeType)shape_type;
+
+                            part.UpdateExtraPhysics(physdata);
+
+                            break;
+
+                        case (int)ScriptBaseClass.PRIM_PHYSICS_MATERIAL:
+                            if (remain < 5)
+                                return;
+
+                            int material_bits = rules.GetLSLIntegerItem(idx++);
+                            float material_density = (float)rules.GetLSLFloatItem(idx++);
+                            float material_friction = (float)rules.GetLSLFloatItem(idx++);
+                            float material_restitution = (float)rules.GetLSLFloatItem(idx++);
+                            float material_gravity_modifier = (float)rules.GetLSLFloatItem(idx++);
+
+                            SetPhysicsMaterial(part, material_bits, material_density, material_friction, material_restitution, material_gravity_modifier);
+
+                            break;
+
                         case (int)ScriptBaseClass.PRIM_TEMP_ON_REZ:
                             if (remain < 1)
                                 return;
@@ -7456,7 +8088,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     if (part.ParentGroup.RootPart == part)
                     {
                         SceneObjectGroup parent = part.ParentGroup;
-                        parent.UpdateGroupPosition(new Vector3((float)currentPosition.x, (float)currentPosition.y, (float)currentPosition.z));
+                        Util.FireAndForget(delegate(object x) {
+                            parent.UpdateGroupPosition(new Vector3((float)currentPosition.x, (float)currentPosition.y, (float)currentPosition.z));
+                        });
                     }
                     else
                     {
@@ -7467,6 +8101,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     }
                 }
             }
+
+            if (positionChanged)
+            {
+                if (part.ParentGroup.RootPart == part)
+                {
+                    SceneObjectGroup parent = part.ParentGroup;
+                    Util.FireAndForget(delegate(object x) {
+                        parent.UpdateGroupPosition(new Vector3((float)currentPosition.x, (float)currentPosition.y, (float)currentPosition.z));
+                    });
+                }
+                else
+                {
+                    part.OffsetPosition = new Vector3((float)currentPosition.x, (float)currentPosition.y, (float)currentPosition.z);
+                    SceneObjectGroup parent = part.ParentGroup;
+                    parent.HasGroupChanged = true;
+                    parent.ScheduleGroupForTerseUpdate();
+                }    
+            }
         }
 
         public LSL_String llStringToBase64(string str)
@@ -7627,13 +8279,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_Integer llGetNumberOfPrims()
         {
             m_host.AddScriptLPS(1);
-            int avatarCount = 0;
-            World.ForEachRootScenePresence(delegate(ScenePresence presence)
-            {
-                if (presence.ParentID != 0 && m_host.ParentGroup.ContainsPart(presence.ParentID))
-                    avatarCount++;
-            });
-
+            int avatarCount = m_host.ParentGroup.GetLinkedAvatars().Count;
+            
             return m_host.ParentGroup.PrimCount + avatarCount;
         }
 
@@ -7649,55 +8296,98 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
             UUID objID = UUID.Zero;
             LSL_List result = new LSL_List();
+
+            // If the ID is not valid, return null result
             if (!UUID.TryParse(obj, out objID))
             {
                 result.Add(new LSL_Vector());
                 result.Add(new LSL_Vector());
                 return result;
             }
+
+            // Check if this is an attached prim. If so, replace
+            // the UUID with the avatar UUID and report it's bounding box
+            SceneObjectPart part = World.GetSceneObjectPart(objID);
+            if (part != null && part.ParentGroup.IsAttachment)
+                objID = part.ParentGroup.AttachedAvatar;
+
+            // Find out if this is an avatar ID. If so, return it's box
             ScenePresence presence = World.GetScenePresence(objID);
             if (presence != null)
             {
-                if (presence.ParentID == 0) // not sat on an object
+                // As per LSL Wiki, there is no difference between sitting
+                // and standing avatar since server 1.36
+                LSL_Vector lower;
+                LSL_Vector upper;
+                if (presence.Animator.Animations.DefaultAnimation.AnimID 
+                    == DefaultAvatarAnimations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
                 {
-                    LSL_Vector lower;
-                    LSL_Vector upper;
-                    if (presence.Animator.Animations.DefaultAnimation.AnimID
-                        == DefaultAvatarAnimations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
-                    {
-                        // This is for ground sitting avatars
-                        float height = presence.Appearance.AvatarHeight / 2.66666667f;
-                        lower = new LSL_Vector(-0.3375f, -0.45f, height * -1.0f);
-                        upper = new LSL_Vector(0.3375f, 0.45f, 0.0f);
-                    }
-                    else
-                    {
-                        // This is for standing/flying avatars
-                        float height = presence.Appearance.AvatarHeight / 2.0f;
-                        lower = new LSL_Vector(-0.225f, -0.3f, height * -1.0f);
-                        upper = new LSL_Vector(0.225f, 0.3f, height + 0.05f);
-                    }
-                    result.Add(lower);
-                    result.Add(upper);
-                    return result;
+                    // This is for ground sitting avatars
+                    float height = presence.Appearance.AvatarHeight / 2.66666667f;
+                    lower = new LSL_Vector(-0.3375f, -0.45f, height * -1.0f);
+                    upper = new LSL_Vector(0.3375f, 0.45f, 0.0f);
                 }
                 else
                 {
-                    // sitting on an object so we need the bounding box of that
-                    // which should include the avatar so set the UUID to the
-                    // UUID of the object the avatar is sat on and allow it to fall through
-                    // to processing an object
-                    SceneObjectPart p = World.GetSceneObjectPart(presence.ParentID);
-                    objID = p.UUID;
+                    // This is for standing/flying avatars
+                    float height = presence.Appearance.AvatarHeight / 2.0f;
+                    lower = new LSL_Vector(-0.225f, -0.3f, height * -1.0f);
+                    upper = new LSL_Vector(0.225f, 0.3f, height + 0.05f);
                 }
+
+                // Adjust to the documented error offsets (see LSL Wiki)
+                lower += new LSL_Vector(0.05f, 0.05f, 0.05f);
+                upper -= new LSL_Vector(0.05f, 0.05f, 0.05f);
+
+                if (lower.x > upper.x)
+                    lower.x = upper.x;
+                if (lower.y > upper.y)
+                    lower.y = upper.y;
+                if (lower.z > upper.z)
+                    lower.z = upper.z;
+
+                result.Add(lower);
+                result.Add(upper);
+                return result;
             }
-            SceneObjectPart part = World.GetSceneObjectPart(objID);
+
+            part = World.GetSceneObjectPart(objID);
             // Currently only works for single prims without a sitting avatar
             if (part != null)
             {
-                Vector3 halfSize = part.Scale / 2.0f;
-                LSL_Vector lower = new LSL_Vector(halfSize.X * -1.0f, halfSize.Y * -1.0f, halfSize.Z * -1.0f);
-                LSL_Vector upper = new LSL_Vector(halfSize.X, halfSize.Y, halfSize.Z);
+                float minX;
+                float maxX;
+                float minY;
+                float maxY;
+                float minZ;
+                float maxZ;
+
+                // This BBox is in sim coordinates, with the offset being
+                // a contained point.
+                Vector3[] offsets = Scene.GetCombinedBoundingBox(new List<SceneObjectGroup> { part.ParentGroup },
+                        out minX, out maxX, out minY, out maxY, out minZ, out maxZ);
+
+                minX -= offsets[0].X;
+                maxX -= offsets[0].X;
+                minY -= offsets[0].Y;
+                maxY -= offsets[0].Y;
+                minZ -= offsets[0].Z;
+                maxZ -= offsets[0].Z;
+
+                LSL_Vector lower;
+                LSL_Vector upper;
+
+                // Adjust to the documented error offsets (see LSL Wiki)
+                lower = new LSL_Vector(minX + 0.05f, minY + 0.05f, minZ + 0.05f);
+                upper = new LSL_Vector(maxX - 0.05f, maxY - 0.05f, maxZ - 0.05f);
+
+                if (lower.x > upper.x)
+                    lower.x = upper.x;
+                if (lower.y > upper.y)
+                    lower.y = upper.y;
+                if (lower.z > upper.z)
+                    lower.z = upper.z;
+
                 result.Add(lower);
                 result.Add(upper);
                 return result;
@@ -7711,7 +8401,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public LSL_Vector llGetGeometricCenter()
         {
-            return new LSL_Vector(m_host.GetGeometricCenter().X, m_host.GetGeometricCenter().Y, m_host.GetGeometricCenter().Z);
+            Vector3 tmp = m_host.GetGeometricCenter();
+            return new LSL_Vector(tmp.X, tmp.Y, tmp.Z);
         }
 
         public LSL_List llGetPrimitiveParams(LSL_List rules)
@@ -7777,13 +8468,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         LSL_Vector v = new LSL_Vector(part.AbsolutePosition.X,
                                                       part.AbsolutePosition.Y,
                                                       part.AbsolutePosition.Z);
-                        // For some reason, the part.AbsolutePosition.* values do not change if the
-                        // linkset is rotated; they always reflect the child prim's world position
-                        // as though the linkset is unrotated. This is incompatible behavior with SL's
-                        // implementation, so will break scripts imported from there (not to mention it
-                        // makes it more difficult to determine a child prim's actual inworld position).
-                        if (part.ParentID != 0)
-                            v = ((v - llGetRootPosition()) * llGetRootRotation()) + llGetRootPosition();
                         res.Add(v);
                         break;
 
@@ -7954,56 +8638,92 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.PRIM_BUMP_SHINY:
                         if (remain < 1)
                             return res;
-
-                        face=(int)rules.GetLSLIntegerItem(idx++);
+                        face = (int)rules.GetLSLIntegerItem(idx++);
 
                         tex = part.Shape.Textures;
+                        int shiny;
                         if (face == ScriptBaseClass.ALL_SIDES)
                         {
                             for (face = 0; face < GetNumberOfSides(part); face++)
                             {
-                                Primitive.TextureEntryFace texface = tex.GetFace((uint)face);
-                                // Convert Shininess to PRIM_SHINY_*
-                                res.Add(new LSL_Integer((uint)texface.Shiny >> 6));
-                                // PRIM_BUMP_*
-                                res.Add(new LSL_Integer((int)texface.Bump));
+                                Shininess shinyness = tex.GetFace((uint)face).Shiny;
+                                if (shinyness == Shininess.High)
+                                {
+                                    shiny = ScriptBaseClass.PRIM_SHINY_HIGH;
+                                }
+                                else if (shinyness == Shininess.Medium)
+                                {
+                                    shiny = ScriptBaseClass.PRIM_SHINY_MEDIUM;
+                                }
+                                else if (shinyness == Shininess.Low)
+                                {
+                                    shiny = ScriptBaseClass.PRIM_SHINY_LOW;
+                                }
+                                else
+                                {
+                                    shiny = ScriptBaseClass.PRIM_SHINY_NONE;
+                                }
+                                res.Add(new LSL_Integer(shiny));
+                                res.Add(new LSL_Integer((int)tex.GetFace((uint)face).Bump));
                             }
                         }
                         else
                         {
-                            if (face >= 0 && face < GetNumberOfSides(part))
+                            Shininess shinyness = tex.GetFace((uint)face).Shiny;
+                            if (shinyness == Shininess.High)
                             {
-                                Primitive.TextureEntryFace texface = tex.GetFace((uint)face);
-                                // Convert Shininess to PRIM_SHINY_*
-                                res.Add(new LSL_Integer((uint)texface.Shiny >> 6));
-                                // PRIM_BUMP_*
-                                res.Add(new LSL_Integer((int)texface.Bump));
+                                shiny = ScriptBaseClass.PRIM_SHINY_HIGH; 
+                            }
+                            else if (shinyness == Shininess.Medium)
+                            {
+                                shiny = ScriptBaseClass.PRIM_SHINY_MEDIUM;
+                            }
+                            else if (shinyness == Shininess.Low)
+                            {
+                                shiny = ScriptBaseClass.PRIM_SHINY_LOW;
+                            }
+                            else
+                            {
+                                shiny = ScriptBaseClass.PRIM_SHINY_NONE;
                             }
+                            res.Add(new LSL_Integer(shiny));
+                            res.Add(new LSL_Integer((int)tex.GetFace((uint)face).Bump));
                         }
                         break;
 
                     case (int)ScriptBaseClass.PRIM_FULLBRIGHT:
                         if (remain < 1)
                             return res;
-
-                        face=(int)rules.GetLSLIntegerItem(idx++);
+                        face = (int)rules.GetLSLIntegerItem(idx++);
 
                         tex = part.Shape.Textures;
+                        int fullbright;
                         if (face == ScriptBaseClass.ALL_SIDES)
                         {
                             for (face = 0; face < GetNumberOfSides(part); face++)
                             {
-                                Primitive.TextureEntryFace texface = tex.GetFace((uint)face);
-                                res.Add(new LSL_Integer(texface.Fullbright ? 1 : 0));
+                                if (tex.GetFace((uint)face).Fullbright == true)
+                                {
+                                    fullbright = ScriptBaseClass.TRUE;
+                                }
+                                else
+                                {
+                                    fullbright = ScriptBaseClass.FALSE;
+                                }
+                                res.Add(new LSL_Integer(fullbright));
                             }
                         }
                         else
                         {
-                            if (face >= 0 && face < GetNumberOfSides(part))
+                            if (tex.GetFace((uint)face).Fullbright == true)
                             {
-                                Primitive.TextureEntryFace texface = tex.GetFace((uint)face);
-                                res.Add(new LSL_Integer(texface.Fullbright ? 1 : 0));
+                                fullbright = ScriptBaseClass.TRUE;
                             }
+                            else
+                            {
+                                fullbright = ScriptBaseClass.FALSE;
+                            }
+                            res.Add(new LSL_Integer(fullbright));
                         }
                         break;
 
@@ -8025,27 +8745,35 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         break;
 
                     case (int)ScriptBaseClass.PRIM_TEXGEN:
+                        // (PRIM_TEXGEN_DEFAULT, PRIM_TEXGEN_PLANAR)
                         if (remain < 1)
                             return res;
-
-                        face=(int)rules.GetLSLIntegerItem(idx++);
+                        face = (int)rules.GetLSLIntegerItem(idx++);
 
                         tex = part.Shape.Textures;
                         if (face == ScriptBaseClass.ALL_SIDES)
                         {
                             for (face = 0; face < GetNumberOfSides(part); face++)
                             {
-                                MappingType texgen = tex.GetFace((uint)face).TexMapType;
-                                // Convert MappingType to PRIM_TEXGEN_DEFAULT, PRIM_TEXGEN_PLANAR etc.
-                                res.Add(new LSL_Integer((uint)texgen >> 1));
+                                if (tex.GetFace((uint)face).TexMapType == MappingType.Planar)
+                                {
+                                    res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TEXGEN_PLANAR));
+                                }
+                                else
+                                {
+                                    res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TEXGEN_DEFAULT));
+                                }
                             }
                         }
                         else
                         {
-                            if (face >= 0 && face < GetNumberOfSides(part))
+                            if (tex.GetFace((uint)face).TexMapType == MappingType.Planar)
                             {
-                                MappingType texgen = tex.GetFace((uint)face).TexMapType;
-                                res.Add(new LSL_Integer((uint)texgen >> 1));
+                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TEXGEN_PLANAR));
+                            }
+                            else
+                            {
+                                res.Add(new LSL_Integer(ScriptBaseClass.PRIM_TEXGEN_DEFAULT));
                             }
                         }
                         break;
@@ -8068,28 +8796,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.PRIM_GLOW:
                         if (remain < 1)
                             return res;
-
-                        face=(int)rules.GetLSLIntegerItem(idx++);
+                        face = (int)rules.GetLSLIntegerItem(idx++);
 
                         tex = part.Shape.Textures;
+                        float primglow;
                         if (face == ScriptBaseClass.ALL_SIDES)
                         {
                             for (face = 0; face < GetNumberOfSides(part); face++)
                             {
-                                Primitive.TextureEntryFace texface = tex.GetFace((uint)face);
-                                res.Add(new LSL_Float(texface.Glow));
+                                primglow = tex.GetFace((uint)face).Glow;
+                                res.Add(new LSL_Float(primglow));
                             }
                         }
                         else
                         {
-                            if (face >= 0 && face < GetNumberOfSides(part))
-                            {
-                                Primitive.TextureEntryFace texface = tex.GetFace((uint)face);
-                                res.Add(new LSL_Float(texface.Glow));
-                            }
+                            primglow = tex.GetFace((uint)face).Glow;
+                            res.Add(new LSL_Float(primglow));
                         }
                         break;
-
                     case (int)ScriptBaseClass.PRIM_TEXT:
                         Color4 textColor = part.GetTextColor();
                         res.Add(new LSL_String(part.Text));
@@ -8701,8 +9425,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         //  The function returns an ordered list
         //  representing the tokens found in the supplied
         //  sources string. If two successive tokenizers
-        //  are encountered, then a NULL entry is added
-        //  to the list.
+        //  are encountered, then a null-string entry is
+        //  added to the list.
         //
         //  It is a precondition that the source and
         //  toekizer lisst are non-null. If they are null,
@@ -8710,7 +9434,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         //  while their lengths are being determined.
         //
         //  A small amount of working memoryis required
-        //  of approximately 8*#tokenizers.
+        //  of approximately 8*#tokenizers + 8*srcstrlen.
         //
         //  There are many ways in which this function
         //  can be implemented, this implementation is
@@ -8726,155 +9450,124 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         //  and eliminates redundant tokenizers as soon
         //  as is possible.
         //
-        //  The implementation tries to avoid any copying
-        //  of arrays or other objects.
+        //  The implementation tries to minimize temporary
+        //  garbage generation.
         //  </remarks>
 
-        private LSL_List ParseString(string src, LSL_List separators, LSL_List spacers, bool keepNulls)
+        public LSL_List llParseStringKeepNulls(string src, LSL_List separators, LSL_List spacers)
         {
-            int         beginning = 0;
-            int         srclen    = src.Length;
-            int         seplen    = separators.Length;
-            object[]    separray  = separators.Data;
-            int         spclen    = spacers.Length;
-            object[]    spcarray  = spacers.Data;
-            int         mlen      = seplen+spclen;
-
-            int[]       offset    = new int[mlen+1];
-            bool[]      active    = new bool[mlen];
-
-            int         best;
-            int         j;
-
-            //    Initial capacity reduces resize cost
+            return ParseString2List(src, separators, spacers, true);
+        }
 
-            LSL_List tokens = new LSL_List();
+        private LSL_List ParseString2List(string src, LSL_List separators, LSL_List spacers, bool keepNulls)
+        {
+            int          srclen    = src.Length;
+            int          seplen    = separators.Length;
+            object[]     separray  = separators.Data;
+            int          spclen    = spacers.Length;
+            object[]     spcarray  = spacers.Data;
+            int          dellen    = 0;
+            string[]     delarray  = new string[seplen+spclen];
 
-            //    All entries are initially valid
+            int          outlen    = 0;
+            string[]     outarray  = new string[srclen*2+1];
 
-            for (int i = 0; i < mlen; i++)
-                active[i] = true;
+            int          i, j;
+            string       d;
 
-            offset[mlen] = srclen;
+            m_host.AddScriptLPS(1);
 
-            while (beginning < srclen)
+            /*
+             * Convert separator and spacer lists to C# strings.
+             * Also filter out null strings so we don't hang.
+             */
+            for (i = 0; i < seplen; i ++)
             {
+                d = separray[i].ToString();
+                if (d.Length > 0)
+                {
+                    delarray[dellen++] = d;
+                }
+            }
+            seplen = dellen;
 
-                best = mlen;    // as bad as it gets
+            for (i = 0; i < spclen; i ++)
+            {
+                d = spcarray[i].ToString();
+                if (d.Length > 0)
+                {
+                    delarray[dellen++] = d;
+                }
+            }
 
-                //    Scan for separators
+            /*
+             * Scan through source string from beginning to end.
+             */
+            for (i = 0;;)
+            {
 
-                for (j = 0; j < seplen; j++)
+                /*
+                 * Find earliest delimeter in src starting at i (if any).
+                 */
+                int    earliestDel = -1;
+                int    earliestSrc = srclen;
+                string earliestStr = null;
+                for (j = 0; j < dellen; j ++)
                 {
-                    if (separray[j].ToString() == String.Empty)
-                        active[j] = false;
-
-                    if (active[j])
+                    d = delarray[j];
+                    if (d != null)
                     {
-                        // scan all of the markers
-                        if ((offset[j] = src.IndexOf(separray[j].ToString(), beginning)) == -1)
+                        int index = src.IndexOf(d, i);
+                        if (index < 0)
                         {
-                            // not present at all
-                            active[j] = false;
+                            delarray[j] = null;     // delim nowhere in src, don't check it anymore
                         }
-                        else
+                        else if (index < earliestSrc)
                         {
-                            // present and correct
-                            if (offset[j] < offset[best])
-                            {
-                                // closest so far
-                                best = j;
-                                if (offset[best] == beginning)
-                                    break;
-                            }
+                            earliestSrc = index;    // where delimeter starts in source string
+                            earliestDel = j;        // where delimeter is in delarray[]
+                            earliestStr = d;        // the delimeter string from delarray[]
+                            if (index == i) break;  // can't do any better than found at beg of string
                         }
                     }
                 }
 
-                //    Scan for spacers
-
-                if (offset[best] != beginning)
+                /*
+                 * Output source string starting at i through start of earliest delimeter.
+                 */
+                if (keepNulls || (earliestSrc > i))
                 {
-                    for (j = seplen; (j < mlen) && (offset[best] > beginning); j++)
-                    {
-                        if (spcarray[j-seplen].ToString() == String.Empty)
-                            active[j] = false;
-
-                        if (active[j])
-                        {
-                            // scan all of the markers
-                            if ((offset[j] = src.IndexOf(spcarray[j-seplen].ToString(), beginning)) == -1)
-                            {
-                                // not present at all
-                                active[j] = false;
-                            }
-                            else
-                            {
-                                // present and correct
-                                if (offset[j] < offset[best])
-                                {
-                                    // closest so far
-                                    best = j;
-                                }
-                            }
-                        }
-                    }
+                    outarray[outlen++] = src.Substring(i, earliestSrc - i);
                 }
 
-                //    This is the normal exit from the scanning loop
+                /*
+                 * If no delimeter found at or after i, we're done scanning.
+                 */
+                if (earliestDel < 0) break;
 
-                if (best == mlen)
+                /*
+                 * If delimeter was a spacer, output the spacer.
+                 */
+                if (earliestDel >= seplen)
                 {
-                    // no markers were found on this pass
-                    // so we're pretty much done
-                    if ((keepNulls) || ((!keepNulls) && (srclen - beginning) > 0))
-                        tokens.Add(new LSL_String(src.Substring(beginning, srclen - beginning)));
-                    break;
+                    outarray[outlen++] = earliestStr;
                 }
 
-                //    Otherwise we just add the newly delimited token
-                //    and recalculate where the search should continue.
-                if ((keepNulls) || ((!keepNulls) && (offset[best] - beginning) > 0))
-                    tokens.Add(new LSL_String(src.Substring(beginning,offset[best]-beginning)));
-
-                if (best < seplen)
-                {
-                    beginning = offset[best] + (separray[best].ToString()).Length;
-                }
-                else
-                {
-                    beginning = offset[best] + (spcarray[best - seplen].ToString()).Length;
-                    string str = spcarray[best - seplen].ToString();
-                    if ((keepNulls) || ((!keepNulls) && (str.Length > 0)))
-                        tokens.Add(new LSL_String(str));
-                }
+                /*
+                 * Look at rest of src string following delimeter.
+                 */
+                i = earliestSrc + earliestStr.Length;
             }
 
-            //    This an awkward an not very intuitive boundary case. If the
-            //    last substring is a tokenizer, then there is an implied trailing
-            //    null list entry. Hopefully the single comparison will not be too
-            //    arduous. Alternatively the 'break' could be replced with a return
-            //    but that's shabby programming.
-
-            if ((beginning == srclen) && (keepNulls))
+            /*
+             * Make up an exact-sized output array suitable for an LSL_List object.
+             */
+            object[] outlist = new object[outlen];
+            for (i = 0; i < outlen; i ++)
             {
-                if (srclen != 0)
-                    tokens.Add(new LSL_String(""));
+                outlist[i] = new LSL_String(outarray[i]);
             }
-
-            return tokens;
-        }
-
-        public LSL_List llParseString2List(string src, LSL_List separators, LSL_List spacers)
-        {
-            m_host.AddScriptLPS(1);
-            return this.ParseString(src, separators, spacers, false);
-        }
-
-        public LSL_List llParseStringKeepNulls(string src, LSL_List separators, LSL_List spacers)
-        {
-            m_host.AddScriptLPS(1);
-            return this.ParseString(src, separators, spacers, true);
+            return new LSL_List(outlist);
         }
 
         public LSL_Integer llGetObjectPermMask(int mask)
@@ -8951,28 +9644,28 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == item)
                 {
-                    if (inv.Value.Name == item)
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    switch (mask)
                     {
-                        switch (mask)
-                        {
-                            case 0:
-                                return (int)inv.Value.BasePermissions;
-                            case 1:
-                                return (int)inv.Value.CurrentPermissions;
-                            case 2:
-                                return (int)inv.Value.GroupPermissions;
-                            case 3:
-                                return (int)inv.Value.EveryonePermissions;
-                            case 4:
-                                return (int)inv.Value.NextPermissions;
-                        }
+                        case 0:
+                            return (int)inv.Value.BasePermissions;
+                        case 1:
+                            return (int)inv.Value.CurrentPermissions;
+                        case 2:
+                            return (int)inv.Value.GroupPermissions;
+                        case 3:
+                            return (int)inv.Value.EveryonePermissions;
+                        case 4:
+                            return (int)inv.Value.NextPermissions;
                     }
                 }
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             return -1;
         }
@@ -9019,16 +9712,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == item)
                 {
-                    if (inv.Value.Name == item)
-                    {
-                        return inv.Value.CreatorID.ToString();
-                    }
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    return inv.Value.CreatorID.ToString();
                 }
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             llSay(0, "No item name '" + item + "'");
 
@@ -9154,9 +9847,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 try
                 {
+                    /*
                     SceneObjectPart obj = World.GetSceneObjectPart(World.Entities[key].LocalId);
                     if (obj != null)
                         return (double)obj.GetMass();
+                     */
+                    // return total object mass
+                    SceneObjectGroup obj = World.GetGroupByPrim(World.Entities[key].LocalId);
+                    if (obj != null)
+                        return obj.GetMass();
+
                     // the object is null so the key is for an avatar
                     ScenePresence avatar = World.GetScenePresence(key);
                     if (avatar != null)
@@ -9176,7 +9876,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         }
 
         /// <summary>
-        /// illListReplaceList removes the sub-list defined by the inclusive indices
+        /// llListReplaceList removes the sub-list defined by the inclusive indices
         /// start and end and inserts the src list in its place. The inclusive
         /// nature of the indices means that at least one element must be deleted
         /// if the indices are within the bounds of the existing list. I.e. 2,2
@@ -9233,16 +9933,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 // based upon end. Note that if end exceeds the upper
                 // bound in this case, the entire destination list
                 // is removed.
-                else
+                else if (start == 0)
                 {
                     if (end + 1 < dest.Length)
-                    {
                         return src + dest.GetSublist(end + 1, -1);
-                    }
                     else
-                    {
                         return src;
-                    }
+                }
+                else // Start < 0
+                {
+                    if (end + 1 < dest.Length)
+                        return dest.GetSublist(end + 1, -1);
+                    else
+                        return new LSL_List();
                 }
             }
             // Finally, if start > end, we strip away a prefix and
@@ -9293,17 +9996,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             int width = 0;
             int height = 0;
 
-            ParcelMediaCommandEnum? commandToSend = null;
+            uint commandToSend = 0;
             float time = 0.0f; // default is from start
 
             ScenePresence presence = null;
 
             for (int i = 0; i < commandList.Data.Length; i++)
             {
-                ParcelMediaCommandEnum command = (ParcelMediaCommandEnum)commandList.Data[i];
+                uint command = (uint)(commandList.GetLSLIntegerItem(i));
                 switch (command)
                 {
-                    case ParcelMediaCommandEnum.Agent:
+                    case (uint)ParcelMediaCommandEnum.Agent:
                         // we send only to one agent
                         if ((i + 1) < commandList.Length)
                         {
@@ -9320,25 +10023,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         break;
 
-                    case ParcelMediaCommandEnum.Loop:
+                    case (uint)ParcelMediaCommandEnum.Loop:
                         loop = 1;
                         commandToSend = command;
                         update = true; //need to send the media update packet to set looping
                         break;
 
-                    case ParcelMediaCommandEnum.Play:
+                    case (uint)ParcelMediaCommandEnum.Play:
                         loop = 0;
                         commandToSend = command;
                         update = true; //need to send the media update packet to make sure it doesn't loop
                         break;
 
-                    case ParcelMediaCommandEnum.Pause:
-                    case ParcelMediaCommandEnum.Stop:
-                    case ParcelMediaCommandEnum.Unload:
+                    case (uint)ParcelMediaCommandEnum.Pause:
+                    case (uint)ParcelMediaCommandEnum.Stop:
+                    case (uint)ParcelMediaCommandEnum.Unload:
                         commandToSend = command;
                         break;
 
-                    case ParcelMediaCommandEnum.Url:
+                    case (uint)ParcelMediaCommandEnum.Url:
                         if ((i + 1) < commandList.Length)
                         {
                             if (commandList.Data[i + 1] is LSL_String)
@@ -9351,7 +10054,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         break;
 
-                    case ParcelMediaCommandEnum.Texture:
+                    case (uint)ParcelMediaCommandEnum.Texture:
                         if ((i + 1) < commandList.Length)
                         {
                             if (commandList.Data[i + 1] is LSL_String)
@@ -9364,7 +10067,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         break;
 
-                    case ParcelMediaCommandEnum.Time:
+                    case (uint)ParcelMediaCommandEnum.Time:
                         if ((i + 1) < commandList.Length)
                         {
                             if (commandList.Data[i + 1] is LSL_Float)
@@ -9376,7 +10079,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         break;
 
-                    case ParcelMediaCommandEnum.AutoAlign:
+                    case (uint)ParcelMediaCommandEnum.AutoAlign:
                         if ((i + 1) < commandList.Length)
                         {
                             if (commandList.Data[i + 1] is LSL_Integer)
@@ -9390,7 +10093,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         break;
 
-                    case ParcelMediaCommandEnum.Type:
+                    case (uint)ParcelMediaCommandEnum.Type:
                         if ((i + 1) < commandList.Length)
                         {
                             if (commandList.Data[i + 1] is LSL_String)
@@ -9403,7 +10106,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         break;
 
-                    case ParcelMediaCommandEnum.Desc:
+                    case (uint)ParcelMediaCommandEnum.Desc:
                         if ((i + 1) < commandList.Length)
                         {
                             if (commandList.Data[i + 1] is LSL_String)
@@ -9416,7 +10119,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         break;
 
-                    case ParcelMediaCommandEnum.Size:
+                    case (uint)ParcelMediaCommandEnum.Size:
                         if ((i + 2) < commandList.Length)
                         {
                             if (commandList.Data[i + 1] is LSL_Integer)
@@ -9486,7 +10189,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 }
             }
 
-            if (commandToSend != null)
+            if (commandToSend != 0)
             {
                 // the commandList contained a start/stop/... command, too
                 if (presence == null)
@@ -9523,7 +10226,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                 if (aList.Data[i] != null)
                 {
-                    switch ((ParcelMediaCommandEnum) aList.Data[i])
+                    switch ((ParcelMediaCommandEnum) Convert.ToInt32(aList.Data[i].ToString()))
                     {
                         case ParcelMediaCommandEnum.Url:
                             list.Add(new LSL_String(World.GetLandData(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).MediaURL));
@@ -9566,16 +10269,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+            foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
             {
-                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                if (inv.Value.Name == name)
                 {
-                    if (inv.Value.Name == name)
-                    {
-                        return inv.Value.Type;
-                    }
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    return inv.Value.Type;
                 }
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             return -1;
         }
@@ -9586,15 +10289,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             if (quick_pay_buttons.Data.Length < 4)
             {
-                LSLError("List must have at least 4 elements");
-                return;
+                int x;
+                for (x=quick_pay_buttons.Data.Length; x<= 4; x++)
+                {
+                    quick_pay_buttons.Add(ScriptBaseClass.PAY_HIDE);
+                }
             }
-            m_host.ParentGroup.RootPart.PayPrice[0]=price;
-
-            m_host.ParentGroup.RootPart.PayPrice[1]=(LSL_Integer)quick_pay_buttons.Data[0];
-            m_host.ParentGroup.RootPart.PayPrice[2]=(LSL_Integer)quick_pay_buttons.Data[1];
-            m_host.ParentGroup.RootPart.PayPrice[3]=(LSL_Integer)quick_pay_buttons.Data[2];
-            m_host.ParentGroup.RootPart.PayPrice[4]=(LSL_Integer)quick_pay_buttons.Data[3];
+            int[] nPrice = new int[5];
+            nPrice[0] = price;
+            nPrice[1] = quick_pay_buttons.GetLSLIntegerItem(0);
+            nPrice[2] = quick_pay_buttons.GetLSLIntegerItem(1);
+            nPrice[3] = quick_pay_buttons.GetLSLIntegerItem(2);
+            nPrice[4] = quick_pay_buttons.GetLSLIntegerItem(3);
+            m_host.ParentGroup.RootPart.PayPrice = nPrice;
             m_host.ParentGroup.HasGroupChanged = true;
         }
 
@@ -9612,6 +10319,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 ShoutError("No permissions to track the camera");
                 return new LSL_Vector();
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             ScenePresence presence = World.GetScenePresence(m_host.OwnerID);
             if (presence != null)
@@ -9636,6 +10344,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 ShoutError("No permissions to track the camera");
                 return new LSL_Rotation();
             }
+            m_host.TaskInventory.LockItemsForRead(false);
 
             ScenePresence presence = World.GetScenePresence(m_host.OwnerID);
             if (presence != null)
@@ -9697,8 +10406,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
             DetectParams detectedParams = m_ScriptEngine.GetDetectParams(m_itemID, 0);
-            if (detectedParams == null) return; // only works on the first detected avatar
-
+            if (detectedParams == null)
+            {
+                if (m_host.ParentGroup.IsAttachment == true)
+                {
+                    detectedParams = new DetectParams();
+                    detectedParams.Key = m_host.OwnerID;
+                }
+                else
+                {
+                    return;
+                }
+            }
+           
             ScenePresence avatar = World.GetScenePresence(detectedParams.Key);
             if (avatar != null)
             {
@@ -9706,6 +10426,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                                                    new Vector3((float)pos.x, (float)pos.y, (float)pos.z),
                                                                    new Vector3((float)lookAt.x, (float)lookAt.y, (float)lookAt.z));
             }
+            
             ScriptSleep(1000);
         }
 
@@ -9831,12 +10552,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             SortedDictionary<int, float> parameters = new SortedDictionary<int, float>();
             object[] data = rules.Data;
-            for (int i = 0; i < data.Length; ++i) {
+            for (int i = 0; i < data.Length; ++i)
+            {
                 int type = Convert.ToInt32(data[i++].ToString());
                 if (i >= data.Length) break; // odd number of entries => ignore the last
 
                 // some special cases: Vector parameters are split into 3 float parameters (with type+1, type+2, type+3)
-                switch (type) {
+                switch (type)
+                {
                 case ScriptBaseClass.CAMERA_FOCUS:
                 case ScriptBaseClass.CAMERA_FOCUS_OFFSET:
                 case ScriptBaseClass.CAMERA_POSITION:
@@ -9944,19 +10667,65 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_String llXorBase64StringsCorrect(string str1, string str2)
         {
             m_host.AddScriptLPS(1);
-            string ret = String.Empty;
-            string src1 = llBase64ToString(str1);
-            string src2 = llBase64ToString(str2);
-            int c = 0;
-            for (int i = 0; i < src1.Length; i++)
+
+            if (str1 == String.Empty)
+                return String.Empty;
+            if (str2 == String.Empty)
+                return str1;
+
+            int len = str2.Length;
+            if ((len % 4) != 0) // LL is EVIL!!!!
+            {
+                while (str2.EndsWith("="))
+                    str2 = str2.Substring(0, str2.Length - 1);
+
+                len = str2.Length;
+                int mod = len % 4;
+
+                if (mod == 1)
+                    str2 = str2.Substring(0, str2.Length - 1);
+                else if (mod == 2)
+                    str2 += "==";
+                else if (mod == 3)
+                    str2 += "=";
+            }
+
+            byte[] data1;
+            byte[] data2;
+            try
+            {
+                data1 = Convert.FromBase64String(str1);
+                data2 = Convert.FromBase64String(str2);
+            }
+            catch (Exception)
+            {
+                return new LSL_String(String.Empty);
+            }
+
+            byte[] d2 = new Byte[data1.Length];
+            int pos = 0;
+            
+            if (data1.Length <= data2.Length)
+            {
+                Array.Copy(data2, 0, d2, 0, data1.Length);
+            }
+            else
             {
-                ret += (char) (src1[i] ^ src2[c]);
+                while (pos < data1.Length)
+                {
+                    len = data1.Length - pos;
+                    if (len > data2.Length)
+                        len = data2.Length;
 
-                c++;
-                if (c >= src2.Length)
-                    c = 0;
+                    Array.Copy(data2, 0, d2, pos, len);
+                    pos += len;
+                }
             }
-            return llStringToBase64(ret);
+
+            for (pos = 0 ; pos < data1.Length ; pos++ )
+                data1[pos] ^= d2[pos];
+
+            return Convert.ToBase64String(data1);
         }
 
         public LSL_String llHTTPRequest(string url, LSL_List parameters, string body)
@@ -10013,12 +10782,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             Regex r = new Regex(authregex);
             int[] gnums = r.GetGroupNumbers();
             Match m = r.Match(url);
-            if (m.Success) {
-                for (int i = 1; i < gnums.Length; i++) {
+            if (m.Success)
+            {
+                for (int i = 1; i < gnums.Length; i++)
+                {
                     //System.Text.RegularExpressions.Group g = m.Groups[gnums[i]];
                     //CaptureCollection cc = g.Captures;
                 }
-                if (m.Groups.Count == 5) {
+                if (m.Groups.Count == 5)
+                {
                     httpHeaders["Authorization"] = String.Format("Basic {0}", Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes(m.Groups[2].ToString() + ":" + m.Groups[3].ToString())));
                     url = m.Groups[1].ToString() + m.Groups[4].ToString();
                 }
@@ -10381,15 +11153,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         internal UUID ScriptByName(string name)
         {
-            lock (m_host.TaskInventory)
+            m_host.TaskInventory.LockItemsForRead(true);
+
+            foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
             {
-                foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
+                if (item.Type == 10 && item.Name == name)
                 {
-                    if (item.Type == 10 && item.Name == name)
-                        return item.ItemID;
+                    m_host.TaskInventory.LockItemsForRead(false);
+                    return item.ItemID;
                 }
             }
 
+            m_host.TaskInventory.LockItemsForRead(false);
+
             return UUID.Zero;
         }
 
@@ -10430,6 +11206,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
+            //Clone is thread safe
             TaskInventoryDictionary itemsDictionary = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
 
             UUID assetID = UUID.Zero;
@@ -10492,6 +11269,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
+            //Clone is thread safe
             TaskInventoryDictionary itemsDictionary = (TaskInventoryDictionary)m_host.TaskInventory.Clone();
 
             UUID assetID = UUID.Zero;
@@ -10572,15 +11350,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return GetLinkPrimitiveParams(obj, rules);
         }
 
-        public void print(string str)
+        public LSL_Integer llGetLinkNumberOfSides(LSL_Integer link)
         {
-            // yes, this is a real LSL function. See: http://wiki.secondlife.com/wiki/Print
-            IOSSL_Api ossl = (IOSSL_Api)m_ScriptEngine.GetApi(m_itemID, "OSSL");
-            if (ossl != null)
-            {
-                ossl.CheckThreatLevel(ThreatLevel.High, "print");
-                m_log.Info("LSL print():" + str);
-            }
+            List<SceneObjectPart> parts = GetLinkParts(link);
+            if (parts.Count < 1)
+                return 0;
+
+            return GetNumberOfSides(parts[0]);
         }
 
         private string Name2Username(string name)
@@ -10626,155 +11402,482 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return rq.ToString();
         }
 
+        private void SayShoutTimerElapsed(Object sender, ElapsedEventArgs args)
+        {
+            m_SayShoutCount = 0;
+        }
+
+        private struct Tri
+        {
+            public Vector3 p1;
+            public Vector3 p2;
+            public Vector3 p3;
+        }
+
+        private bool InBoundingBox(ScenePresence avatar, Vector3 point)
+        {
+            float height = avatar.Appearance.AvatarHeight;
+            Vector3 b1 = avatar.AbsolutePosition + new Vector3(-0.22f, -0.22f, -height/2);
+            Vector3 b2 = avatar.AbsolutePosition + new Vector3(0.22f, 0.22f, height/2);
+
+            if (point.X > b1.X && point.X < b2.X &&
+                point.Y > b1.Y && point.Y < b2.Y &&
+                point.Z > b1.Z && point.Z < b2.Z)
+                return true;
+            return false;
+        }
+
+        private ContactResult[] AvatarIntersection(Vector3 rayStart, Vector3 rayEnd)
+        {
+            List<ContactResult> contacts = new List<ContactResult>();
+
+            Vector3 ab = rayEnd - rayStart;
+
+            World.ForEachScenePresence(delegate(ScenePresence sp)
+            {
+                Vector3 ac = sp.AbsolutePosition - rayStart;
+                Vector3 bc = sp.AbsolutePosition - rayEnd;
+
+                double d = Math.Abs(Vector3.Mag(Vector3.Cross(ab, ac)) / Vector3.Distance(rayStart, rayEnd));
+
+                if (d > 1.5)
+                    return;
+
+                double d2 = Vector3.Dot(Vector3.Negate(ab), ac);
+
+                if (d2 > 0)
+                    return;
+
+                double dp = Math.Sqrt(Vector3.Mag(ac) * Vector3.Mag(ac) - d * d);
+                Vector3 p = rayStart + Vector3.Divide(Vector3.Multiply(ab, (float)dp), (float)Vector3.Mag(ab));
+
+                if (!InBoundingBox(sp, p))
+                    return;
+
+                ContactResult result = new ContactResult ();
+                result.ConsumerID = sp.LocalId;
+                result.Depth = Vector3.Distance(rayStart, p);
+                result.Normal = Vector3.Zero;
+                result.Pos = p;
+
+                contacts.Add(result);
+            });
+
+            return contacts.ToArray();
+        }
+
+        private ContactResult[] ObjectIntersection(Vector3 rayStart, Vector3 rayEnd, bool includePhysical, bool includeNonPhysical, bool includePhantom)
+        {
+            Ray ray = new Ray(rayStart, Vector3.Normalize(rayEnd - rayStart));
+            List<ContactResult> contacts = new List<ContactResult>();
+
+            Vector3 ab = rayEnd - rayStart;
+
+            World.ForEachSOG(delegate(SceneObjectGroup group)
+            {
+                if (m_host.ParentGroup == group)
+                    return;
+
+                if (group.IsAttachment)
+                    return;
+
+                if (group.RootPart.PhysActor == null)
+                {
+                    if (!includePhantom)
+                        return;
+                }
+                else
+                {
+                    if (group.RootPart.PhysActor.IsPhysical)
+                    {
+                        if (!includePhysical)
+                            return;
+                    }
+                    else
+                    {
+                        if (!includeNonPhysical)
+                            return;
+                    }
+                }
+
+                // Find the radius ouside of which we don't even need to hit test
+                float minX;
+                float maxX;
+                float minY;
+                float maxY;
+                float minZ;
+                float maxZ;
+
+                float radius = 0.0f;
+
+                group.GetAxisAlignedBoundingBoxRaw(out minX, out maxX, out minY, out maxY, out minZ, out maxZ);
+
+                if (Math.Abs(minX) > radius)
+                    radius = Math.Abs(minX);
+                if (Math.Abs(minY) > radius)
+                    radius = Math.Abs(minY);
+                if (Math.Abs(minZ) > radius)
+                    radius = Math.Abs(minZ);
+                if (Math.Abs(maxX) > radius)
+                    radius = Math.Abs(maxX);
+                if (Math.Abs(maxY) > radius)
+                    radius = Math.Abs(maxY);
+                if (Math.Abs(maxZ) > radius)
+                    radius = Math.Abs(maxZ);
+
+                Vector3 ac = group.AbsolutePosition - rayStart;
+                Vector3 bc = group.AbsolutePosition - rayEnd;
+
+                double d = Math.Abs(Vector3.Mag(Vector3.Cross(ab, ac)) / Vector3.Distance(rayStart, rayEnd));
+
+                // Too far off ray, don't bother
+                if (d > radius)
+                    return;
+
+                // Behind ray, drop
+                double d2 = Vector3.Dot(Vector3.Negate(ab), ac);
+                if (d2 > 0)
+                    return;
+
+                EntityIntersection intersection = group.TestIntersection(ray, true, false);
+                // Miss.
+                if (!intersection.HitTF)
+                    return;
+
+                ContactResult result = new ContactResult ();
+                result.ConsumerID = group.LocalId;
+                result.Depth = intersection.distance;
+                result.Normal = intersection.normal;
+                result.Pos = intersection.ipoint;
+
+                contacts.Add(result);
+            });
+
+            return contacts.ToArray();
+        }
+
+        private ContactResult? GroundIntersection(Vector3 rayStart, Vector3 rayEnd)
+        {
+            double[,] heightfield = World.Heightmap.GetDoubles();
+            List<ContactResult> contacts = new List<ContactResult>();
+
+            double min = 2048.0;
+            double max = 0.0;
+
+            // Find the min and max of the heightfield
+            for (int x = 0 ; x < World.Heightmap.Width ; x++)
+            {
+                for (int y = 0 ; y < World.Heightmap.Height ; y++)
+                {
+                    if (heightfield[x, y] > max)
+                        max = heightfield[x, y];
+                    if (heightfield[x, y] < min)
+                        min = heightfield[x, y];
+                }
+            }
+
+
+            // A ray extends past rayEnd, but doesn't go back before
+            // rayStart. If the start is above the highest point of the ground
+            // and the ray goes up, we can't hit the ground. Ever.
+            if (rayStart.Z > max && rayEnd.Z >= rayStart.Z)
+                return null;
+
+            // Same for going down
+            if (rayStart.Z < min && rayEnd.Z <= rayStart.Z)
+                return null;
+
+            List<Tri> trilist = new List<Tri>();
+
+            // Create our triangle list
+            for (int x = 1 ; x < World.Heightmap.Width ; x++)
+            {
+                for (int y = 1 ; y < World.Heightmap.Height ; y++)
+                {
+                    Tri t1 = new Tri();
+                    Tri t2 = new Tri();
+                    
+                    Vector3 p1 = new Vector3(x-1, y-1, (float)heightfield[x-1, y-1]);
+                    Vector3 p2 = new Vector3(x, y-1, (float)heightfield[x, y-1]);
+                    Vector3 p3 = new Vector3(x, y, (float)heightfield[x, y]);
+                    Vector3 p4 = new Vector3(x-1, y, (float)heightfield[x-1, y]);
+
+                    t1.p1 = p1;
+                    t1.p2 = p2;
+                    t1.p3 = p3;
+
+                    t2.p1 = p3;
+                    t2.p2 = p4;
+                    t2.p3 = p1;
+
+                    trilist.Add(t1);
+                    trilist.Add(t2);
+                }
+            }
+
+            // Ray direction
+            Vector3 rayDirection = rayEnd - rayStart;
+
+            foreach (Tri t in trilist)
+            {
+                // Compute triangle plane normal and edges
+                Vector3 u = t.p2 - t.p1;
+                Vector3 v = t.p3 - t.p1;
+                Vector3 n = Vector3.Cross(u, v);
+
+                if (n == Vector3.Zero)
+                    continue;
+
+                Vector3 w0 = rayStart - t.p1;
+                double a = -Vector3.Dot(n, w0);
+                double b = Vector3.Dot(n, rayDirection);
+
+                // Not intersecting the plane, or in plane (same thing)
+                // Ignoring this MAY cause the ground to not be detected
+                // sometimes
+                if (Math.Abs(b) < 0.000001)
+                    continue;
+                
+                double r = a / b;
+
+                // ray points away from plane
+                if (r < 0.0)
+                    continue;
+
+                Vector3 ip = rayStart + Vector3.Multiply(rayDirection, (float)r);
+
+                float uu = Vector3.Dot(u, u);
+                float uv = Vector3.Dot(u, v);
+                float vv = Vector3.Dot(v, v);
+                Vector3 w = ip - t.p1;
+                float wu = Vector3.Dot(w, u);
+                float wv = Vector3.Dot(w, v);
+                float d = uv * uv - uu * vv;
+
+                float cs = (uv * wv - vv * wu) / d;
+                if (cs < 0 || cs > 1.0)
+                    continue;
+                float ct = (uv * wu - uu * wv) / d;
+                if (ct < 0 || (cs + ct) > 1.0)
+                    continue;
+
+                // Add contact point
+                ContactResult result = new ContactResult ();
+                result.ConsumerID = 0;
+                result.Depth = Vector3.Distance(rayStart, ip);
+                result.Normal = n;
+                result.Pos = ip;
+
+                contacts.Add(result);
+            }
+
+            if (contacts.Count == 0)
+                return null;
+
+            contacts.Sort(delegate(ContactResult a, ContactResult b)
+            {
+                return (int)(a.Depth - b.Depth);
+            });
+
+            return contacts[0];
+        }
+/*
+        // not done:
+        private ContactResult[] testRay2NonPhysicalPhantom(Vector3 rayStart, Vector3 raydir, float raylenght)
+        {
+            ContactResult[] contacts = null;
+            World.ForEachSOG(delegate(SceneObjectGroup group)
+            {
+                if (m_host.ParentGroup == group)
+                    return;
+
+                if (group.IsAttachment)
+                    return;
+
+                if(group.RootPart.PhysActor != null)
+                    return;
+
+                contacts = group.RayCastGroupPartsOBBNonPhysicalPhantom(rayStart, raydir, raylenght);
+            });
+            return contacts;
+        }
+*/
+
         public LSL_List llCastRay(LSL_Vector start, LSL_Vector end, LSL_List options)
         {
+            LSL_List list = new LSL_List();
+
             m_host.AddScriptLPS(1);
 
-            Vector3 dir = new Vector3((float)(end-start).x, (float)(end-start).y, (float)(end-start).z);
-            Vector3 startvector = new Vector3((float)start.x, (float)start.y, (float)start.z);
-            Vector3 endvector = new Vector3((float)end.x, (float)end.y, (float)end.z);
+            Vector3 rayStart = new Vector3((float)start.x, (float)start.y, (float)start.z);
+            Vector3 rayEnd = new Vector3((float)end.x, (float)end.y, (float)end.z);
+            Vector3 dir = rayEnd - rayStart;
 
-            int count = 0;
-//            int detectPhantom = 0;
+            float dist = Vector3.Mag(dir);
+
+            int count = 1;
+            bool detectPhantom = false;
             int dataFlags = 0;
             int rejectTypes = 0;
 
             for (int i = 0; i < options.Length; i += 2)
             {
                 if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_MAX_HITS)
-                {
                     count = options.GetLSLIntegerItem(i + 1);
-                }
-//                else if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_DETECT_PHANTOM)
-//                {
-//                    detectPhantom = options.GetLSLIntegerItem(i + 1);
-//                }
+                else if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_DETECT_PHANTOM)
+                    detectPhantom = (options.GetLSLIntegerItem(i + 1) > 0);
                 else if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_DATA_FLAGS)
-                {
                     dataFlags = options.GetLSLIntegerItem(i + 1);
-                }
                 else if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_REJECT_TYPES)
-                {
                     rejectTypes = options.GetLSLIntegerItem(i + 1);
-                }
             }
 
-            LSL_List list = new LSL_List();
-            List<ContactResult> results = World.PhysicsScene.RaycastWorld(startvector, dir, dir.Length(), count);
-
-            double distance = Util.GetDistanceTo(startvector, endvector);
-
-            if (distance == 0)
-                distance = 0.001;
+            if (count > 16)
+                count = 16;
 
-            Vector3 posToCheck = startvector;
-            ITerrainChannel channel = World.RequestModuleInterface<ITerrainChannel>();
+            List<ContactResult> results = new List<ContactResult>();
 
             bool checkTerrain = !((rejectTypes & ScriptBaseClass.RC_REJECT_LAND) == ScriptBaseClass.RC_REJECT_LAND);
             bool checkAgents = !((rejectTypes & ScriptBaseClass.RC_REJECT_AGENTS) == ScriptBaseClass.RC_REJECT_AGENTS);
             bool checkNonPhysical = !((rejectTypes & ScriptBaseClass.RC_REJECT_NONPHYSICAL) == ScriptBaseClass.RC_REJECT_NONPHYSICAL);
             bool checkPhysical = !((rejectTypes & ScriptBaseClass.RC_REJECT_PHYSICAL) == ScriptBaseClass.RC_REJECT_PHYSICAL);
 
-            for (float i = 0; i <= distance; i += 0.1f)
+
+            if (World.SuportsRayCastFiltered())
             {
-                posToCheck = startvector  + (dir * (i / (float)distance));
+                if (dist == 0)
+                    return list;
+
+                RayFilterFlags rayfilter = RayFilterFlags.ClosestAndBackCull;
+                if (checkTerrain)
+                    rayfilter |= RayFilterFlags.land;
+//                if (checkAgents)
+//                    rayfilter |= RayFilterFlags.agent;
+                if (checkPhysical)
+                    rayfilter |= RayFilterFlags.physical;
+                if (checkNonPhysical)
+                    rayfilter |= RayFilterFlags.nonphysical;
+                if (detectPhantom)
+                    rayfilter |= RayFilterFlags.LSLPhanton;
 
-                if (checkTerrain && channel[(int)(posToCheck.X + startvector.X), (int)(posToCheck.Y + startvector.Y)] < posToCheck.Z)
+                Vector3 direction = dir * ( 1/dist);
+
+                if(rayfilter == 0)
                 {
-                    ContactResult result = new ContactResult();
-                    result.ConsumerID = 0;
-                    result.Depth = 0;
-                    result.Normal = Vector3.Zero;
-                    result.Pos = posToCheck;
-                    results.Add(result);
-                    checkTerrain = false;
+                    list.Add(new LSL_Integer(0));
+                    return list;
                 }
 
-                if (checkAgents)
+                // get some more contacts to sort ???
+                int physcount = 4 * count;
+                if (physcount > 20)
+                    physcount = 20;
+
+                object physresults;
+                physresults = World.RayCastFiltered(rayStart, direction, dist, physcount, rayfilter);
+
+                if (physresults == null)
                 {
-                    World.ForEachRootScenePresence(delegate(ScenePresence sp)
-                    {
-                        if (sp.AbsolutePosition.ApproxEquals(posToCheck, sp.PhysicsActor.Size.X))
-                        {
-                            ContactResult result = new ContactResult ();
-                            result.ConsumerID = sp.LocalId;
-                            result.Depth = 0;
-                            result.Normal = Vector3.Zero;
-                            result.Pos = posToCheck;
-                            results.Add(result);
-                        }
-                    });
+                    list.Add(new LSL_Integer(-3)); // timeout error
+                    return list;
                 }
-            }
 
-            int refcount = 0;
-            foreach (ContactResult result in results)
-            {
-                if ((rejectTypes & ScriptBaseClass.RC_REJECT_LAND)
-                    == ScriptBaseClass.RC_REJECT_LAND && result.ConsumerID == 0)
-                    continue;
+                results = (List<ContactResult>)physresults;
 
-                ISceneEntity entity = World.GetSceneObjectPart(result.ConsumerID);
+                // for now physics doesn't detect sitted avatars so do it outside physics
+                if (checkAgents)
+                {
+                    ContactResult[] agentHits = AvatarIntersection(rayStart, rayEnd);
+                    foreach (ContactResult r in agentHits)
+                        results.Add(r);
+                }
 
-                if (entity == null && (rejectTypes & ScriptBaseClass.RC_REJECT_AGENTS) != ScriptBaseClass.RC_REJECT_AGENTS)
-                    entity = World.GetScenePresence(result.ConsumerID); //Only check if we should be looking for agents
+            // bug: will not detect phantom unless they are physical
+            // don't use ObjectIntersection because its also bad
+
+            }
+            else
+            {
+                if (checkTerrain)
+                {
+                    ContactResult? groundContact = GroundIntersection(rayStart, rayEnd);
+                    if (groundContact != null)
+                        results.Add((ContactResult)groundContact);
+                }
 
-                if (entity == null)
+                if (checkAgents)
                 {
-                    list.Add(UUID.Zero);
+                    ContactResult[] agentHits = AvatarIntersection(rayStart, rayEnd);
+                    foreach (ContactResult r in agentHits)
+                        results.Add(r);
+                }
 
-                    if ((dataFlags & ScriptBaseClass.RC_GET_LINK_NUM) == ScriptBaseClass.RC_GET_LINK_NUM)
-                        list.Add(0);
+                if (checkPhysical || checkNonPhysical || detectPhantom)
+                {
+                    ContactResult[] objectHits = ObjectIntersection(rayStart, rayEnd, checkPhysical, checkNonPhysical, detectPhantom);
+                    foreach (ContactResult r in objectHits)
+                        results.Add(r);
+                }
+            }
 
-                    list.Add(result.Pos);
+            results.Sort(delegate(ContactResult a, ContactResult b)
+            {
+                return a.Depth.CompareTo(b.Depth);
+            });
+            
+            int values = 0;
+            SceneObjectGroup thisgrp = m_host.ParentGroup;
 
-                    if ((dataFlags & ScriptBaseClass.RC_GET_NORMAL) == ScriptBaseClass.RC_GET_NORMAL)
-                        list.Add(result.Normal);
+            foreach (ContactResult result in results)
+            {
+                if (result.Depth > dist)
+                    continue;
 
-                    continue; //Can't find it, so add UUID.Zero
-                }
+                // physics ray can return colisions with host prim
+                if (m_host.LocalId == result.ConsumerID)
+                    continue;
 
-                /*if (detectPhantom == 0 && intersection.obj is ISceneChildEntity &&
-                    ((ISceneChildEntity)intersection.obj).PhysActor == null)
-                    continue;*/ //Can't do this ATM, physics engine knows only of non phantom objects
+                UUID itemID = UUID.Zero;
+                int linkNum = 0;
 
-                if (entity is SceneObjectPart)
+                SceneObjectPart part = World.GetSceneObjectPart(result.ConsumerID);
+                // It's a prim!
+                if (part != null)
                 {
-                    PhysicsActor pa = ((SceneObjectPart)entity).PhysActor;
+                    // dont detect members of same object ???
+                    if (part.ParentGroup == thisgrp)
+                        continue;
 
-                    if (pa != null && pa.IsPhysical)
-                    {
-                        if (!checkPhysical)
-                            continue;
-                    }
+                    if ((dataFlags & ScriptBaseClass.RC_GET_ROOT_KEY) == ScriptBaseClass.RC_GET_ROOT_KEY)
+                        itemID = part.ParentGroup.UUID;
                     else
-                    {
-                        if (!checkNonPhysical)
-                            continue;
-                    }
-                }
+                        itemID = part.UUID;
 
-                refcount++;
-                if ((dataFlags & ScriptBaseClass.RC_GET_ROOT_KEY) == ScriptBaseClass.RC_GET_ROOT_KEY && entity is SceneObjectPart)
-                    list.Add(((SceneObjectPart)entity).ParentGroup.UUID);
+                    linkNum = part.LinkNum;
+                }
                 else
-                    list.Add(entity.UUID);
-
-                if ((dataFlags & ScriptBaseClass.RC_GET_LINK_NUM) == ScriptBaseClass.RC_GET_LINK_NUM)
                 {
-                    if (entity is SceneObjectPart)
-                        list.Add(((SceneObjectPart)entity).LinkNum);
-                    else
-                        list.Add(0);
+                    ScenePresence sp = World.GetScenePresence(result.ConsumerID);
+                    /// It it a boy? a girl? 
+                    if (sp != null)
+                        itemID = sp.UUID;
                 }
 
-                list.Add(result.Pos);
+                list.Add(new LSL_String(itemID.ToString()));
+                list.Add(new LSL_String(result.Pos.ToString()));
+
+                if ((dataFlags & ScriptBaseClass.RC_GET_LINK_NUM) == ScriptBaseClass.RC_GET_LINK_NUM)
+                    list.Add(new LSL_Integer(linkNum));
 
                 if ((dataFlags & ScriptBaseClass.RC_GET_NORMAL) == ScriptBaseClass.RC_GET_NORMAL)
-                    list.Add(result.Normal);
+                    list.Add(new LSL_Vector(result.Normal.X, result.Normal.Y, result.Normal.Z));
+
+                values++;
+                if (values >= count)
+                    break;
             }
 
-            list.Add(refcount); //The status code, either the # of contacts, RCERR_SIM_PERF_LOW, or RCERR_CAST_TIME_EXCEEDED
+            list.Add(new LSL_Integer(values));
 
             return list;
         }
@@ -10814,7 +11917,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 case ScriptBaseClass.ESTATE_ACCESS_ALLOWED_AGENT_ADD:
                     if (!isAccount) return 0;
                     if (estate.HasAccess(id)) return 1;
-                    if (estate.IsBanned(id))
+                    if (estate.IsBanned(id, World.GetUserFlags(id)))
                         estate.RemoveBan(id);
                     estate.AddEstateUser(id);
                     break;
@@ -10833,14 +11936,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     break;
                 case ScriptBaseClass.ESTATE_ACCESS_BANNED_AGENT_ADD:
                     if (!isAccount) return 0;
-                    if (estate.IsBanned(id)) return 1;
+                    if (estate.IsBanned(id, World.GetUserFlags(id))) return 1;
                     EstateBan ban = new EstateBan();
                     ban.EstateID = estate.EstateID;
                     ban.BannedUserID = id;
                     estate.AddBan(ban);
                     break;
                 case ScriptBaseClass.ESTATE_ACCESS_BANNED_AGENT_REMOVE:
-                    if (!isAccount || !estate.IsBanned(id)) return 0;
+                    if (!isAccount || !estate.IsBanned(id, World.GetUserFlags(id))) return 0;
                     estate.RemoveBan(id);
                     break;
                 default: return 0;
@@ -10869,7 +11972,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return 16384;
         }
 
-        public LSL_Integer llGetUsedMemory()
+        public virtual LSL_Integer llGetUsedMemory()
         {
             m_host.AddScriptLPS(1);
             // The value returned for LSO scripts in SL
@@ -10897,7 +12000,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llSetSoundQueueing(int queue)
         {
             m_host.AddScriptLPS(1);
-            NotImplemented("llSetSoundQueueing");
         }
 
         public void llCollisionSprite(string impact_sprite)
@@ -10909,10 +12011,270 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llGodLikeRezObject(string inventory, LSL_Vector pos)
         {
             m_host.AddScriptLPS(1);
-            NotImplemented("llGodLikeRezObject");
+
+            if (!World.Permissions.IsGod(m_host.OwnerID))
+                NotImplemented("llGodLikeRezObject");
+
+            AssetBase rezAsset = World.AssetService.Get(inventory);
+            if (rezAsset == null)
+            {
+                llSay(0, "Asset not found");
+                return;
+            }
+
+            SceneObjectGroup group = null;
+
+            try
+            {
+                string xmlData = Utils.BytesToString(rezAsset.Data);
+                group = SceneObjectSerializer.FromOriginalXmlFormat(xmlData);
+            }
+            catch
+            {
+                llSay(0, "Asset not found");
+                return;
+            }
+
+            if (group == null)
+            {
+                llSay(0, "Asset not found");
+                return;
+            }
+
+            group.RootPart.AttachPoint = group.RootPart.Shape.State;
+            group.RootPart.AttachOffset = group.AbsolutePosition;
+
+            group.ResetIDs();
+
+            Vector3 llpos = new Vector3((float)pos.x, (float)pos.y, (float)pos.z);
+            World.AddNewSceneObject(group, true, llpos, Quaternion.Identity, Vector3.Zero);
+            group.CreateScriptInstances(0, true, World.DefaultScriptEngine, 3);
+            group.ScheduleGroupForFullUpdate();
+
+            // objects rezzed with this method are die_at_edge by default.
+            group.RootPart.SetDieAtEdge(true);
+
+            group.ResumeScripts();
+
+            m_ScriptEngine.PostObjectEvent(m_host.LocalId, new EventParams(
+                    "object_rez", new Object[] {
+                    new LSL_String(
+                    group.RootPart.UUID.ToString()) },
+                    new DetectParams[0]));
+        }
+
+        public LSL_String llTransferLindenDollars(string destination, int amount)
+        {
+            UUID txn = UUID.Random();
+
+            Util.FireAndForget(delegate(object x)
+            {
+                int replycode = 0;
+                string replydata = destination + "," + amount.ToString();
+
+                try
+                {
+                    TaskInventoryItem item = GetSelfInventoryItem();
+                    if (item == null)
+                    {
+                        replydata = "SERVICE_ERROR";
+                        return;
+                    }
+
+                    m_host.AddScriptLPS(1);
+
+                    if (item.PermsGranter == UUID.Zero)
+                    {
+                        replydata = "MISSING_PERMISSION_DEBIT";
+                        return;
+                    }
+
+                    if ((item.PermsMask & ScriptBaseClass.PERMISSION_DEBIT) == 0)
+                    {
+                        replydata = "MISSING_PERMISSION_DEBIT";
+                        return;
+                    }
+
+                    UUID toID = new UUID();
+
+                    if (!UUID.TryParse(destination, out toID))
+                    {
+                        replydata = "INVALID_AGENT";
+                        return;
+                    }
+
+                    IMoneyModule money = World.RequestModuleInterface<IMoneyModule>();
+
+                    if (money == null)
+                    {
+                        replydata = "TRANSFERS_DISABLED";
+                        return;
+                    }
+
+                    bool result = money.ObjectGiveMoney(
+                        m_host.ParentGroup.RootPart.UUID, m_host.ParentGroup.RootPart.OwnerID, toID, amount);
+
+                    if (result)
+                    {
+                        replycode = 1;
+                        return;
+                    }
+
+                    replydata = "LINDENDOLLAR_INSUFFICIENTFUNDS";
+                }
+                finally
+                {
+                    m_ScriptEngine.PostScriptEvent(m_itemID, new EventParams(
+                            "transaction_result", new Object[] {
+                            new LSL_String(txn.ToString()),
+                            new LSL_Integer(replycode),
+                            new LSL_String(replydata) },
+                            new DetectParams[0]));
+                }
+            });
+
+            return txn.ToString();
         }
 
         #endregion
+
+        public void llSetKeyframedMotion(LSL_List frames, LSL_List options)
+        {
+            SceneObjectGroup group = m_host.ParentGroup;
+
+            if (group.RootPart.PhysActor != null && group.RootPart.PhysActor.IsPhysical)
+                return;
+            if (group.IsAttachment)
+                return;
+
+            if (frames.Data.Length > 0) // We are getting a new motion
+            {
+                if (group.RootPart.KeyframeMotion != null)
+                    group.RootPart.KeyframeMotion.Stop();
+                group.RootPart.KeyframeMotion = null;
+
+                int idx = 0;
+
+                KeyframeMotion.PlayMode mode = KeyframeMotion.PlayMode.Forward;
+                KeyframeMotion.DataFormat data = KeyframeMotion.DataFormat.Translation | KeyframeMotion.DataFormat.Rotation;
+
+                while (idx < options.Data.Length)
+                {
+                    int option = (int)options.GetLSLIntegerItem(idx++);
+                    int remain = options.Data.Length - idx;
+
+                    switch (option)
+                    {
+                        case ScriptBaseClass.KFM_MODE:
+                            if (remain < 1)
+                                break;
+                            int modeval = (int)options.GetLSLIntegerItem(idx++);
+                            switch(modeval)
+                            {
+                                case ScriptBaseClass.KFM_FORWARD:
+                                    mode = KeyframeMotion.PlayMode.Forward;
+                                    break;
+                                case ScriptBaseClass.KFM_REVERSE:
+                                    mode = KeyframeMotion.PlayMode.Reverse;
+                                    break;
+                                case ScriptBaseClass.KFM_LOOP:
+                                    mode = KeyframeMotion.PlayMode.Loop;
+                                    break;
+                                case ScriptBaseClass.KFM_PING_PONG:
+                                    mode = KeyframeMotion.PlayMode.PingPong;
+                                    break;
+                            }
+                            break;
+                        case ScriptBaseClass.KFM_DATA:
+                            if (remain < 1)
+                                break;
+                            int dataval = (int)options.GetLSLIntegerItem(idx++);
+                            data = (KeyframeMotion.DataFormat)dataval;
+                            break;
+                    }
+                }
+
+                group.RootPart.KeyframeMotion = new KeyframeMotion(group, mode, data);
+
+                idx = 0;
+
+                int elemLength = 2;
+                if (data == (KeyframeMotion.DataFormat.Translation | KeyframeMotion.DataFormat.Rotation))
+                    elemLength = 3;
+
+                List<KeyframeMotion.Keyframe> keyframes = new List<KeyframeMotion.Keyframe>();
+                while (idx < frames.Data.Length)
+                {
+                    int remain = frames.Data.Length - idx;
+
+                    if (remain < elemLength)
+                        break;
+
+                    KeyframeMotion.Keyframe frame = new KeyframeMotion.Keyframe();
+                    frame.Position = null;
+                    frame.Rotation = null;
+
+                    if ((data & KeyframeMotion.DataFormat.Translation) != 0)
+                    {
+                        LSL_Types.Vector3 tempv = frames.GetVector3Item(idx++);
+                        frame.Position = new Vector3((float)tempv.x, (float)tempv.y, (float)tempv.z);
+                    }
+                    if ((data & KeyframeMotion.DataFormat.Rotation) != 0)
+                    {
+                        LSL_Types.Quaternion tempq = frames.GetQuaternionItem(idx++);
+                        frame.Rotation = new Quaternion((float)tempq.x, (float)tempq.y, (float)tempq.z, (float)tempq.s);
+                    }
+
+                    float tempf = (float)frames.GetLSLFloatItem(idx++);
+                    frame.TimeMS = (int)(tempf * 1000.0f);
+
+                    keyframes.Add(frame);
+                }
+
+                group.RootPart.KeyframeMotion.SetKeyframes(keyframes.ToArray());
+                group.RootPart.KeyframeMotion.Start();
+            }
+            else
+            {
+                if (group.RootPart.KeyframeMotion == null)
+                    return;
+
+                if (options.Data.Length == 0)
+                {
+                    group.RootPart.KeyframeMotion.Stop();
+                    return;
+                }
+                    
+                int code = (int)options.GetLSLIntegerItem(0);
+
+                int idx = 0;
+
+                while (idx < options.Data.Length)
+                {
+                    int option = (int)options.GetLSLIntegerItem(idx++);
+                    int remain = options.Data.Length - idx;
+
+                    switch (option)
+                    {
+                        case ScriptBaseClass.KFM_COMMAND:
+                            int cmd = (int)options.GetLSLIntegerItem(idx++);
+                            switch (cmd)
+                            {
+                                case ScriptBaseClass.KFM_CMD_PLAY:
+                                    group.RootPart.KeyframeMotion.Start();
+                                    break;
+                                case ScriptBaseClass.KFM_CMD_STOP:
+                                    group.RootPart.KeyframeMotion.Stop();
+                                    break;
+                                case ScriptBaseClass.KFM_CMD_PAUSE:
+                                    group.RootPart.KeyframeMotion.Pause();
+                                    break;
+                            }
+                            break;
+                    }
+                }
+            }
+        }
     }
 
     public class NotecardCache
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 0d4ea19..60568a8 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -137,6 +137,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         internal ThreatLevel m_MaxThreatLevel = ThreatLevel.VeryLow;
         internal float m_ScriptDelayFactor = 1.0f;
         internal float m_ScriptDistanceFactor = 1.0f;
+        internal bool m_debuggerSafe = false;
         internal Dictionary<string, FunctionPerms > m_FunctionPerms = new Dictionary<string, FunctionPerms >();
 
         public void Initialize(IScriptEngine ScriptEngine, SceneObjectPart host, uint localID, UUID itemID)
@@ -145,6 +146,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host = host;
             m_localID = localID;
             m_itemID = itemID;
+            m_debuggerSafe = m_ScriptEngine.Config.GetBoolean("DebuggerSafe", false);
 
             if (m_ScriptEngine.Config.GetBoolean("AllowOSFunctions", false))
                 m_OSFunctionsEnabled = true;
@@ -206,7 +208,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         internal void OSSLError(string msg)
         {
-            throw new Exception("OSSL Runtime Error: " + msg);
+            if (m_debuggerSafe)
+            {
+                OSSLShoutError(msg);
+            }
+            else
+            {
+                throw new Exception("OSSL Runtime Error: " + msg);
+            }
         }
 
         /// <summary>
@@ -927,18 +936,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 if (target != null)
                 {
                     UUID animID=UUID.Zero;
-                    lock (m_host.TaskInventory)
+                    m_host.TaskInventory.LockItemsForRead(true);
+                    foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
                     {
-                        foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                        if (inv.Value.Name == animation)
                         {
-                            if (inv.Value.Name == animation)
-                            {
-                                if (inv.Value.Type == (int)AssetType.Animation)
-                                    animID = inv.Value.AssetID;
-                                continue;
-                            }
+                            if (inv.Value.Type == (int)AssetType.Animation)
+                                animID = inv.Value.AssetID;
+                            continue;
                         }
                     }
+                    m_host.TaskInventory.LockItemsForRead(false);
                     if (animID == UUID.Zero)
                         target.Animator.AddAnimation(animation, m_host.UUID);
                     else
@@ -965,18 +973,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 if (target != null)
                 {
                     UUID animID = UUID.Zero;
-                    lock (m_host.TaskInventory)
+                    m_host.TaskInventory.LockItemsForRead(true);
+                    foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
                     {
-                        foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                        if (inv.Value.Name == animation)
                         {
-                            if (inv.Value.Name == animation)
-                            {
-                                if (inv.Value.Type == (int)AssetType.Animation)
-                                    animID = inv.Value.AssetID;
-                                continue;
-                            }
+                            if (inv.Value.Type == (int)AssetType.Animation)
+                                animID = inv.Value.AssetID;
+                            continue;
                         }
                     }
+                    m_host.TaskInventory.LockItemsForRead(false);
                     
                     if (animID == UUID.Zero)
                         target.Animator.RemoveAnimation(animation);
@@ -1797,6 +1804,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             if (!UUID.TryParse(notecardNameOrUuid, out assetID))
             {
+                m_host.TaskInventory.LockItemsForRead(true);
                 foreach (TaskInventoryItem item in m_host.TaskInventory.Values)
                 {
                     if (item.Type == 7 && item.Name == notecardNameOrUuid)
@@ -1804,6 +1812,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         assetID = item.AssetID;
                     }
                 }
+                m_host.TaskInventory.LockItemsForRead(false);
             }
 
             if (assetID == UUID.Zero)
@@ -2271,7 +2280,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             CheckThreatLevel(ThreatLevel.High, "osNpcCreate");
             m_host.AddScriptLPS(1);
 
-            return NpcCreate(firstname, lastname, position, notecard, false, false);
+            return NpcCreate(firstname, lastname, position, notecard, true, false);
         }
 
         public LSL_Key osNpcCreate(string firstname, string lastname, LSL_Vector position, string notecard, int options)
@@ -2282,24 +2291,39 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return NpcCreate(
                 firstname, lastname, position, notecard,
                 (options & ScriptBaseClass.OS_NPC_NOT_OWNED) == 0,
-                (options & ScriptBaseClass.OS_NPC_SENSE_AS_AGENT) != 0);
+                false);
+//                (options & ScriptBaseClass.OS_NPC_SENSE_AS_AGENT) != 0);
         }
 
         private LSL_Key NpcCreate(
             string firstname, string lastname, LSL_Vector position, string notecard, bool owned, bool senseAsAgent)
         {
+            if (!owned)
+                OSSLError("Unowned NPCs are unsupported");
+            
+            string groupTitle = String.Empty;
+
+            if (!World.Permissions.CanRezObject(1, m_host.OwnerID, new Vector3((float)position.x, (float)position.y, (float)position.z)))
+                return new LSL_Key(UUID.Zero.ToString());
+
+            if (firstname != String.Empty || lastname != String.Empty)
+            {
+                if (firstname != "Shown outfit:")
+                    groupTitle = "- NPC -";
+            }
+
             INPCModule module = World.RequestModuleInterface<INPCModule>();
             if (module != null)
             {
                 AvatarAppearance appearance = null;
 
-                UUID id;
-                if (UUID.TryParse(notecard, out id))
-                {
-                    ScenePresence clonePresence = World.GetScenePresence(id);
-                    if (clonePresence != null)
-                        appearance = clonePresence.Appearance;
-                }
+//                UUID id;
+//                if (UUID.TryParse(notecard, out id))
+//                {
+//                    ScenePresence clonePresence = World.GetScenePresence(id);
+//                    if (clonePresence != null)
+//                        appearance = clonePresence.Appearance;
+//                }
 
                 if (appearance == null)
                 {
@@ -2327,6 +2351,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                           World,
                                           appearance);
 
+                ScenePresence sp;
+                if (World.TryGetScenePresence(x, out sp))
+                {
+                    sp.Grouptitle = groupTitle;
+                    sp.SendAvatarDataToAllAgents();
+                }
                 return new LSL_Key(x.ToString());
             }
 
@@ -2617,16 +2647,32 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             CheckThreatLevel(ThreatLevel.High, "osNpcRemove");
             m_host.AddScriptLPS(1);
 
-            INPCModule module = World.RequestModuleInterface<INPCModule>();
-            if (module != null)
-            {
-                UUID npcId = new UUID(npc.m_string);
+            ManualResetEvent ev = new ManualResetEvent(false);
 
-                if (!module.CheckPermissions(npcId, m_host.OwnerID))
-                    return;
+            Util.FireAndForget(delegate(object x) {
+                try
+                {
+                    INPCModule module = World.RequestModuleInterface<INPCModule>();
+                    if (module != null)
+                    {
+                        UUID npcId = new UUID(npc.m_string);
 
-                module.DeleteNPC(npcId, World);
-            }
+                        ILandObject l = World.LandChannel.GetLandObject(m_host.GroupPosition.X, m_host.GroupPosition.Y);
+                        if (l == null || m_host.OwnerID != l.LandData.OwnerID)
+                        {
+                            if (!module.CheckPermissions(npcId, m_host.OwnerID))
+                                return;
+                        }
+
+                        module.DeleteNPC(npcId, World);
+                    }
+                }
+                finally
+                {
+                    ev.Set();
+                }
+            });
+            ev.WaitOne();
         }
 
         public void osNpcPlayAnimation(LSL_Key npc, string animation)
@@ -3160,4 +3206,4 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             ((LSL_Api)m_LSL_Api).DetachFromAvatar();
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
index 3844753..19f3ce1 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
@@ -319,7 +319,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
             float dy;
             float dz;
 
-            Quaternion q = SensePoint.GetWorldRotation();
+//            Quaternion q = SensePoint.RotationOffset;
+            Quaternion q = SensePoint.GetWorldRotation();               // non-attached prim Sensor *always* uses World rotation!
             if (SensePoint.ParentGroup.IsAttachment)
             {
                 // In attachments, rotate the sensor cone with the
@@ -333,7 +334,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 // Position of a sensor in a child prim attached to an avatar
                 // will be still wrong. 
                 ScenePresence avatar = m_CmdManager.m_ScriptEngine.World.GetScenePresence(SensePoint.ParentGroup.AttachedAvatar);
-                q = avatar.Rotation * q;
+                fromRegionPos = avatar.AbsolutePosition;
+                q = avatar.Rotation;
             }
 
             LSL_Types.Quaternion r = new LSL_Types.Quaternion(q.X, q.Y, q.Z, q.W);
@@ -463,7 +465,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 // Position of a sensor in a child prim attached to an avatar
                 // will be still wrong. 
                 ScenePresence avatar = m_CmdManager.m_ScriptEngine.World.GetScenePresence(SensePoint.ParentGroup.AttachedAvatar);
-                q = avatar.Rotation * q;
+                if (avatar == null)
+                    return sensedEntities;
+                fromRegionPos = avatar.AbsolutePosition;
+                q = avatar.Rotation;
             }
 
             LSL_Types.Quaternion r = new LSL_Types.Quaternion(q.X, q.Y, q.Z, q.W);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs
index bc63030..9ee6946 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/Timer.cs
@@ -118,25 +118,27 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
             if (Timers.Count == 0)
                 return;
 
+            Dictionary<string, TimerClass>.ValueCollection tvals;
             lock (TimerListLock)
             {
                 // Go through all timers
-                Dictionary<string, TimerClass>.ValueCollection tvals = Timers.Values;
-                foreach (TimerClass ts in tvals)
+                tvals = Timers.Values;
+            }
+
+            foreach (TimerClass ts in tvals)
+            {
+                // Time has passed?
+                if (ts.next < DateTime.Now.Ticks)
                 {
-                    // Time has passed?
-                    if (ts.next < DateTime.Now.Ticks)
-                    {
-                        //m_log.Debug("Time has passed: Now: " + DateTime.Now.Ticks + ", Passed: " + ts.next);
-                        // Add it to queue
-                        m_CmdManager.m_ScriptEngine.PostScriptEvent(ts.itemID,
-                                new EventParams("timer", new Object[0],
-                                new DetectParams[0]));
-                        // set next interval
-
-                        //ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
-                        ts.next = DateTime.Now.Ticks + ts.interval;
-                    }
+                    //m_log.Debug("Time has passed: Now: " + DateTime.Now.Ticks + ", Passed: " + ts.next);
+                    // Add it to queue
+                    m_CmdManager.m_ScriptEngine.PostScriptEvent(ts.itemID,
+                            new EventParams("timer", new Object[0],
+                            new DetectParams[0]));
+                    // set next interval
+
+                    //ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
+                    ts.next = DateTime.Now.Ticks + ts.interval;
                 }
             }
         }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ICM_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ICM_Api.cs
new file mode 100644
index 0000000..ab215f3
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ICM_Api.cs
@@ -0,0 +1,46 @@
+/*
+ * 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 OpenSimulator 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.
+ */
+
+using System.Collections;
+using OpenSim.Region.ScriptEngine.Interfaces;
+
+using key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
+using vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
+{
+    public interface ICM_Api
+    {
+        string cmDetectedCountry(int num);
+        string cmGetAgentCountry(key key);
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
index 7a797ac..2ecc455 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
@@ -125,6 +125,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
          LSL_Float llGetEnergy();
         LSL_Vector llGetForce();
        LSL_Integer llGetFreeMemory();
+       LSL_Integer llGetUsedMemory();
        LSL_Integer llGetFreeURLs();
         LSL_Vector llGetGeometricCenter();
          LSL_Float llGetGMTclock();
@@ -148,6 +149,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         LSL_Vector llGetLocalPos();
       LSL_Rotation llGetLocalRot();
          LSL_Float llGetMass();
+         LSL_Float llGetMassMKS();
        LSL_Integer llGetMemoryLimit();
               void llGetNextEmail(string address, string subject);
         LSL_String llGetNotecardLine(string name, int line);
@@ -201,12 +203,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         LSL_String llGetTimestamp();
         LSL_Vector llGetTorque();
        LSL_Integer llGetUnixTime();
-       LSL_Integer llGetUsedMemory();
         LSL_Vector llGetVel();
          LSL_Float llGetWallclock();
               void llGiveInventory(string destination, string inventory);
               void llGiveInventoryList(string destination, string category, LSL_List inventory);
        LSL_Integer llGiveMoney(string destination, int amount);
+        LSL_String llTransferLindenDollars(string destination, int amount);
               void llGodLikeRezObject(string inventory, LSL_Vector pos);
          LSL_Float llGround(LSL_Vector offset);
         LSL_Vector llGroundContour(LSL_Vector offset);
@@ -354,6 +356,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
               void llSetParcelMusicURL(string url);
               void llSetPayPrice(int price, LSL_List quick_pay_buttons);
               void llSetPos(LSL_Vector pos);
+       LSL_Integer llSetRegionPos(LSL_Vector pos);
        LSL_Integer llSetPrimMediaParams(LSL_Integer face, LSL_List rules);
               void llSetPrimitiveParams(LSL_List rules);
               void llSetLinkPrimitiveParamsFast(int linknum, LSL_List rules);
@@ -402,6 +405,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
               void llTargetOmega(LSL_Vector axis, double spinrate, double gain);
               void llTargetRemove(int number);
               void llTeleportAgentHome(string agent);
+              void llTeleportAgent(string agent, string simname, LSL_Vector pos, LSL_Vector lookAt);
               void llTextBox(string avatar, string message, int chat_channel);
         LSL_String llToLower(string source);
         LSL_String llToUpper(string source);
@@ -418,9 +422,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         LSL_Vector llWind(LSL_Vector offset);
         LSL_String llXorBase64Strings(string str1, string str2);
         LSL_String llXorBase64StringsCorrect(string str1, string str2);
-              void print(string str);
+       LSL_Integer llGetLinkNumberOfSides(LSL_Integer link);
+              void llSetPhysicsMaterial(int material_bits, float material_gravity_modifier, float material_restitution, float material_friction, float material_density);
 
               void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules);
           LSL_List GetLinkPrimitiveParamsEx(LSL_Key prim, LSL_List rules);
+              void llSetKeyframedMotion(LSL_List frames, LSL_List options);
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
index e92518d..7382495 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
@@ -85,7 +85,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         // Avatar Info Commands
         string osGetAgentIP(string agent);
         LSL_List osGetAgents();
-
+        
         // Teleport commands
         void osTeleportAgent(string agent, string regionName, LSL_Types.Vector3 position, LSL_Types.Vector3 lookat);
         void osTeleportAgent(string agent, int regionX, int regionY, LSL_Types.Vector3 position, LSL_Types.Vector3 lookat);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Stub.cs
new file mode 100644
index 0000000..4132dfa
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/CM_Stub.cs
@@ -0,0 +1,71 @@
+/*
+ * 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 OpenSimulator 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.
+ */
+
+using System;
+using System.Runtime.Remoting.Lifetime;
+using System.Threading;
+using System.Reflection;
+using System.Collections;
+using System.Collections.Generic;
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.ScriptEngine.Interfaces;
+using OpenSim.Region.ScriptEngine.Shared.Api.Interfaces;
+using integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+using rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
+using key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+
+namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
+{
+    public partial class ScriptBaseClass : MarshalByRefObject
+    {
+        public ICM_Api m_CM_Functions;
+
+        public void ApiTypeCM(IScriptApi api)
+        {
+            if (!(api is ICM_Api))
+                return;
+
+            m_CM_Functions = (ICM_Api)api;
+        }
+
+        public string cmDetectedCountry(int num)
+        {
+            return m_CM_Functions.cmDetectedCountry(num);
+        }
+
+        public string cmGetAgentCountry(key key)
+        {
+            return m_CM_Functions.cmGetAgentCountry(key);
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/Executor.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/Executor.cs
index 9615315..943d7a2 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/Executor.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/Executor.cs
@@ -27,6 +27,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Reflection;
 using System.Runtime.Remoting.Lifetime;
 using OpenSim.Region.ScriptEngine.Shared;
@@ -132,6 +133,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return (eventFlags);
         }
 
+        [DebuggerNonUserCode]
         public void ExecuteEvent(string state, string FunctionName, object[] args)
         {
             // IMPORTANT: Types and MemberInfo-derived objects require a LOT of memory.
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index fd7c41e..23b4336 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -94,6 +94,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int AGENT_CROUCHING = 1024;
         public const int AGENT_BUSY = 2048;
         public const int AGENT_ALWAYS_RUN = 4096;
+        public const int AGENT_MALE = 8192;
 
         //Particle Systems
         public const int PSYS_PART_INTERP_COLOR_MASK = 1;
@@ -282,6 +283,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int CHANGED_REGION_START = 1024; //LL Changed the constant from CHANGED_REGION_RESTART
         public const int CHANGED_MEDIA = 2048;
         public const int CHANGED_ANIMATION = 16384;
+        public const int CHANGED_POSITION = 32768;
         public const int TYPE_INVALID = 0;
         public const int TYPE_INTEGER = 1;
         public const int TYPE_FLOAT = 2;
@@ -581,6 +583,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int PRIM_MEDIA_PERM_OWNER = 1;
         public const int PRIM_MEDIA_PERM_GROUP = 2;
         public const int PRIM_MEDIA_PERM_ANYONE = 4;
+
+        public const int PRIM_PHYSICS_SHAPE_TYPE = 30;
+        public const int PRIM_PHYSICS_SHAPE_PRIM = 0;
+        public const int PRIM_PHYSICS_SHAPE_CONVEX = 2;
+        public const int PRIM_PHYSICS_SHAPE_NONE = 1;
+
+        public const int PRIM_PHYSICS_MATERIAL = 31;
+        public const int DENSITY = 1;
+        public const int FRICTION = 2;
+        public const int RESTITUTION = 4;
+        public const int GRAVITY_MULTIPLIER = 8;
         
         // extra constants for llSetPrimMediaParams
         public static readonly LSLInteger LSL_STATUS_OK = new LSLInteger(0);
@@ -653,5 +666,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public static readonly LSLInteger RCERR_UNKNOWN = -1;        
         public static readonly LSLInteger RCERR_SIM_PERF_LOW = -2;
         public static readonly LSLInteger RCERR_CAST_TIME_EXCEEDED = 3;
+
+        public const int KFM_MODE = 1;
+        public const int KFM_LOOP = 1;
+        public const int KFM_REVERSE = 3;
+        public const int KFM_FORWARD = 0;
+        public const int KFM_PING_PONG = 2;
+        public const int KFM_DATA = 2;
+        public const int KFM_TRANSLATION = 2;
+        public const int KFM_ROTATION = 1;
+        public const int KFM_COMMAND = 0;
+        public const int KFM_CMD_PLAY = 0;
+        public const int KFM_CMD_STOP = 1;
+        public const int KFM_CMD_PAUSE = 2;
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
index 80fa530..8db4006 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
@@ -26,6 +26,7 @@
  */
 
 using System;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Runtime.Remoting.Lifetime;
 using System.Threading;
 using System.Reflection;
@@ -164,6 +165,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_LSL_Functions.llBreakLink(linknum);
         }
 
+        public LSL_List llCastRay(LSL_Vector start, LSL_Vector end, LSL_List options)
+        {
+            return m_LSL_Functions.llCastRay(start, end, options);
+        }
+
         public LSL_Integer llCeil(double f)
         {
             return m_LSL_Functions.llCeil(f);
@@ -314,6 +320,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_LSL_Functions.llDialog(avatar, message, buttons, chat_channel);
         }
 
+        [DebuggerNonUserCode]
         public void llDie()
         {
             m_LSL_Functions.llDie();
@@ -469,6 +476,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llGetFreeMemory();
         }
 
+        public LSL_Integer llGetUsedMemory()
+        {
+            return m_LSL_Functions.llGetUsedMemory();
+        }
+
         public LSL_Integer llGetFreeURLs()
         {
             return m_LSL_Functions.llGetFreeURLs();
@@ -574,6 +586,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llGetMass();
         }
 
+        public LSL_Float llGetMassMKS()
+        {
+            return m_LSL_Functions.llGetMassMKS();
+        }
+
         public LSL_Integer llGetMemoryLimit()
         {
             return m_LSL_Functions.llGetMemoryLimit();
@@ -839,11 +856,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llGetUnixTime();
         }
 
-        public LSL_Integer llGetUsedMemory()
-        {
-            return m_LSL_Functions.llGetUsedMemory();
-        }
-
         public LSL_Vector llGetVel()
         {
             return m_LSL_Functions.llGetVel();
@@ -869,6 +881,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llGiveMoney(destination, amount);
         }
 
+        public LSL_String llTransferLindenDollars(string destination, int amount)
+        {
+            return m_LSL_Functions.llTransferLindenDollars(destination, amount);
+        }
+
         public void llGodLikeRezObject(string inventory, LSL_Vector pos)
         {
             m_LSL_Functions.llGodLikeRezObject(inventory, pos);
@@ -1593,6 +1610,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_LSL_Functions.llSetPos(pos);
         }
 
+        public LSL_Integer llSetRegionPos(LSL_Vector pos)
+        {
+            return m_LSL_Functions.llSetRegionPos(pos);
+        }
+
         public void llSetPrimitiveParams(LSL_List rules)
         {
             m_LSL_Functions.llSetPrimitiveParams(rules);
@@ -1828,6 +1850,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_LSL_Functions.llTargetRemove(number);
         }
 
+        public void llTeleportAgent(string agent, string simname, LSL_Vector pos, LSL_Vector lookAt)
+        {
+            m_LSL_Functions.llTeleportAgent(agent, simname, pos, lookAt);
+        }
+
         public void llTeleportAgentHome(string agent)
         {
             m_LSL_Functions.llTeleportAgentHome(agent);
@@ -1943,9 +1970,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llClearLinkMedia(link, face);
         }
 
-        public void print(string str)
+        public LSL_Integer llGetLinkNumberOfSides(LSL_Integer link)
+        {
+            return m_LSL_Functions.llGetLinkNumberOfSides(link);
+        }
+
+        public void llSetKeyframedMotion(LSL_List frames, LSL_List options)
+        {
+            m_LSL_Functions.llSetKeyframedMotion(frames, options);
+        }
+
+        public void llSetPhysicsMaterial(int material_bits, float material_gravity_modifier, float material_restitution, float material_friction, float material_density)
         {
-            m_LSL_Functions.print(str);
+            m_LSL_Functions.llSetPhysicsMaterial(material_bits, material_gravity_modifier, material_restitution, material_friction, material_density);
         }
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LS_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LS_Stub.cs
index 143b497..2e27f16 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LS_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LS_Stub.cs
@@ -72,9 +72,30 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         {
             return m_LS_Functions.lsSetWindlightSceneTargeted(rules, target);
         }
+
         public void lsClearWindlightScene()
         {
             m_LS_Functions.lsClearWindlightScene();
         }
+
+        public LSL_List cmGetWindlightScene(LSL_List rules)
+        {
+            return m_LS_Functions.lsGetWindlightScene(rules);
+        }
+
+        public int cmSetWindlightScene(LSL_List rules)
+        {
+            return m_LS_Functions.lsSetWindlightScene(rules);
+        }
+
+        public int cmSetWindlightSceneTargeted(LSL_List rules, key target)
+        {
+            return m_LS_Functions.lsSetWindlightSceneTargeted(rules, target);
+        }
+
+        public void cmClearWindlightScene()
+        {
+            m_LS_Functions.lsClearWindlightScene();
+        }
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/ScriptBase.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/ScriptBase.cs
index edbbc2a..b138da3 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/ScriptBase.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/ScriptBase.cs
@@ -33,6 +33,7 @@ using System.Threading;
 using System.Reflection;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using OpenSim.Region.ScriptEngine.Interfaces;
 using OpenSim.Region.ScriptEngine.Shared;
 using OpenSim.Region.ScriptEngine.Shared.Api.Runtime;
@@ -90,6 +91,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return (int)m_Executor.GetStateEventFlags(state);
         }
 
+        [DebuggerNonUserCode]
         public void ExecuteEvent(string state, string FunctionName, object[] args)
         {
             m_Executor.ExecuteEvent(state, FunctionName, args);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Helpers.cs b/OpenSim/Region/ScriptEngine/Shared/Helpers.cs
index 8cebb4a..7e7e278 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Helpers.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Helpers.cs
@@ -35,6 +35,7 @@ using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Region.CoreModules;
 using OpenSim.Region.Framework.Scenes;
+using OpenSim.Services.Interfaces;
 
 namespace OpenSim.Region.ScriptEngine.Shared
 {
@@ -95,6 +96,7 @@ namespace OpenSim.Region.ScriptEngine.Shared
             Type = 0;
             Velocity = new LSL_Types.Vector3();
             initializeSurfaceTouch();
+            Country = String.Empty;
         }
 
         public UUID Key;
@@ -126,6 +128,8 @@ namespace OpenSim.Region.ScriptEngine.Shared
         private int touchFace;
         public int TouchFace { get { return touchFace; } }
 
+        public string Country;
+
         // This can be done in two places including the constructor
         // so be carefull what gets added here
         private void initializeSurfaceTouch()
@@ -173,6 +177,10 @@ namespace OpenSim.Region.ScriptEngine.Shared
                     return;
 
                 Name = presence.Firstname + " " + presence.Lastname;
+                UserAccount account = scene.UserAccountService.GetUserAccount(scene.RegionInfo.ScopeID, Key);
+                if (account != null)
+                    Country = account.UserCountry;
+
                 Owner = Key;
                 Position = new LSL_Types.Vector3(
                         presence.AbsolutePosition.X,
diff --git a/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs b/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
index 2c8af81..0f763f1 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
@@ -27,6 +27,7 @@
 
 using System;
 using System.IO;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Runtime.Remoting;
 using System.Runtime.Remoting.Lifetime;
 using System.Threading;
@@ -218,13 +219,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
             if (part != null)
             {
-                lock (part.TaskInventory)
+                part.TaskInventory.LockItemsForRead(true);
+                if (part.TaskInventory.ContainsKey(ItemID))
                 {
-                    if (part.TaskInventory.ContainsKey(ItemID))
-                    {
-                        ScriptTask = part.TaskInventory[ItemID];
-                    }
+                    ScriptTask = part.TaskInventory[ItemID];
                 }
+                part.TaskInventory.LockItemsForRead(false);
             }
 
             ApiManager am = new ApiManager();
@@ -416,14 +416,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
             {
                 int permsMask;
                 UUID permsGranter;
-                lock (part.TaskInventory)
+                part.TaskInventory.LockItemsForRead(true);
+                if (!part.TaskInventory.ContainsKey(ItemID))
                 {
-                    if (!part.TaskInventory.ContainsKey(ItemID))
-                        return;
-
-                    permsGranter = part.TaskInventory[ItemID].PermsGranter;
-                    permsMask = part.TaskInventory[ItemID].PermsMask;
+                    part.TaskInventory.LockItemsForRead(false);
+                    return;
                 }
+                permsGranter = part.TaskInventory[ItemID].PermsGranter;
+                permsMask = part.TaskInventory[ItemID].PermsMask;
+                part.TaskInventory.LockItemsForRead(false);
 
                 if ((permsMask & ScriptBaseClass.PERMISSION_TAKE_CONTROLS) != 0)
                 {
@@ -551,6 +552,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
             return true;
         }
 
+        [DebuggerNonUserCode] //Prevents the debugger from farting in this function
         public void SetState(string state)
         {
             if (state == State)
@@ -562,7 +564,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
                                        new DetectParams[0]));
             PostEvent(new EventParams("state_entry", new Object[0],
                                        new DetectParams[0]));
-
+            
             throw new EventAbortException();
         }
 
@@ -652,45 +654,45 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
         /// <returns></returns>
         public object EventProcessor()
         {
+            EventParams data = null;
             // We check here as the thread stopping this instance from running may itself hold the m_Script lock.
             if (!Running)
                 return 0;
 
-            lock (m_Script)
-            {
 //                m_log.DebugFormat("[XEngine]: EventProcessor() invoked for {0}.{1}", PrimName, ScriptName);
 
-                if (Suspended)
-                    return 0;
-
-                EventParams data = null;
+            if (Suspended)
+                return 0;
 
-                lock (EventQueue)
+            lock (EventQueue)
+            {
+                data = (EventParams) EventQueue.Dequeue();
+                if (data == null) // Shouldn't happen
                 {
-                    data = (EventParams)EventQueue.Dequeue();
-                    if (data == null) // Shouldn't happen
+                    if (EventQueue.Count > 0 && Running && !ShuttingDown)
                     {
-                        if (EventQueue.Count > 0 && Running && !ShuttingDown)
-                        {
-                            m_CurrentWorkItem = Engine.QueueEventHandler(this);
-                        }
-                        else
-                        {
-                            m_CurrentWorkItem = null;
-                        }
-                        return 0;
+                        m_CurrentWorkItem = Engine.QueueEventHandler(this);
                     }
-
-                    if (data.EventName == "timer")
-                        m_TimerQueued = false;
-                    if (data.EventName == "control")
+                    else
                     {
-                        if (m_ControlEventsInQueue > 0)
-                            m_ControlEventsInQueue--;
+                        m_CurrentWorkItem = null;
                     }
-                    if (data.EventName == "collision")
-                        m_CollisionInQueue = false;
+                    return 0;
                 }
+
+                if (data.EventName == "timer")
+                    m_TimerQueued = false;
+                if (data.EventName == "control")
+                {
+                    if (m_ControlEventsInQueue > 0)
+                        m_ControlEventsInQueue--;
+                }
+                if (data.EventName == "collision")
+                    m_CollisionInQueue = false;
+            }
+
+            lock(m_Script)
+            {
                 
 //                m_log.DebugFormat("[XEngine]: Processing event {0} for {1}", data.EventName, this);
 
@@ -859,6 +861,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
                     new Object[0], new DetectParams[0]));
         }
 
+        [DebuggerNonUserCode] //Stops the VS debugger from farting in this function
         public void ApiResetScript()
         {
             // bool running = Running;
@@ -890,10 +893,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
         public Dictionary<string, object> GetVars()
         {
-            if (m_Script != null)
-                return m_Script.GetVars();
-            else
-                return new Dictionary<string, object>();
+            return m_Script.GetVars();
         }
 
         public void SetVars(Dictionary<string, object> vars)
diff --git a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
index d848b2a..8adf4c5 100644
--- a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
@@ -83,19 +83,19 @@ namespace OpenSim.Region.ScriptEngine.Shared
 
             public override string ToString()
             {
-                string s=String.Format("<{0:0.000000},{1:0.000000},{2:0.000000}>", x, y, z);
+                string s=String.Format("<{0:0.000000}, {1:0.000000}, {2:0.000000}>", x, y, z);
                 return s;
             }
 
             public static explicit operator LSLString(Vector3 vec)
             {
-                string s=String.Format("<{0:0.000000},{1:0.000000},{2:0.000000}>", vec.x, vec.y, vec.z);
+                string s=String.Format("<{0:0.000000}, {1:0.000000}, {2:0.000000}>", vec.x, vec.y, vec.z);
                 return new LSLString(s);
             }
 
             public static explicit operator string(Vector3 vec)
             {
-                string s=String.Format("<{0:0.000000},{1:0.000000},{2:0.000000}>", vec.x, vec.y, vec.z);
+                string s=String.Format("<{0:0.000000}, {1:0.000000}, {2:0.000000}>", vec.x, vec.y, vec.z);
                 return s;
             }
 
@@ -342,19 +342,19 @@ namespace OpenSim.Region.ScriptEngine.Shared
 
             public override string ToString()
             {
-                string st=String.Format(Culture.FormatProvider, "<{0:0.000000},{1:0.000000},{2:0.000000},{3:0.000000}>", x, y, z, s);
+                string st=String.Format(Culture.FormatProvider, "<{0:0.000000}, {1:0.000000}, {2:0.000000}, {3:0.000000}>", x, y, z, s);
                 return st;
             }
 
             public static explicit operator string(Quaternion r)
             {
-                string s=String.Format("<{0:0.000000},{1:0.000000},{2:0.000000},{3:0.000000}>", r.x, r.y, r.z, r.s);
+                string s=String.Format("<{0:0.000000}, {1:0.000000}, {2:0.000000}, {3:0.000000}>", r.x, r.y, r.z, r.s);
                 return s;
             }
 
             public static explicit operator LSLString(Quaternion r)
             {
-                string s=String.Format("<{0:0.000000},{1:0.000000},{2:0.000000},{3:0.000000}>", r.x, r.y, r.z, r.s);
+                string s=String.Format("<{0:0.000000}, {1:0.000000}, {2:0.000000}, {3:0.000000}>", r.x, r.y, r.z, r.s);
                 return new LSLString(s);
             }
 
@@ -459,6 +459,8 @@ namespace OpenSim.Region.ScriptEngine.Shared
                             size += 64;
                         else if (o is int)
                             size += 4;
+                        else if (o is uint)
+                            size += 4;
                         else if (o is string)
                             size += ((string)o).Length;
                         else if (o is float)
@@ -613,24 +615,16 @@ namespace OpenSim.Region.ScriptEngine.Shared
 
             public static bool operator ==(list a, list b)
             {
-                int la = -1;
-                int lb = -1;
-                try { la = a.Length; }
-                catch (NullReferenceException) { }
-                try { lb = b.Length; }
-                catch (NullReferenceException) { }
+                int la = a.Length;
+                int lb = b.Length;
 
                 return la == lb;
             }
 
             public static bool operator !=(list a, list b)
             {
-                int la = -1;
-                int lb = -1;
-                try { la = a.Length; }
-                catch (NullReferenceException) { }
-                try {lb = b.Length;}
-                catch (NullReferenceException) { }
+                int la = a.Length;
+                int lb = b.Length;
 
                 return la != lb;
             }
@@ -864,7 +858,7 @@ namespace OpenSim.Region.ScriptEngine.Shared
                     ret = Math.Sign(Quaternion.Mag(l) - Quaternion.Mag(r));
                 }
 
-                if (ascending == 0)
+                if (ascending != 1)
                 {
                     ret = 0 - ret;
                 }
@@ -897,6 +891,9 @@ namespace OpenSim.Region.ScriptEngine.Shared
                     stride = 1;
                 }
 
+                if ((Data.Length % stride) != 0)
+                    return new list(ret);
+
                 // we can optimize here in the case where stride == 1 and the list
                 // consists of homogeneous types
 
@@ -916,7 +913,7 @@ namespace OpenSim.Region.ScriptEngine.Shared
                     if (homogeneous)
                     {
                         Array.Sort(ret, new HomogeneousComparer());
-                        if (ascending == 0)
+                        if (ascending != 1)
                         {
                             Array.Reverse(ret);
                         }
@@ -1064,7 +1061,7 @@ namespace OpenSim.Region.ScriptEngine.Shared
             {
                 list ret = new list();
                 double entry;
-                for (int i = 0; i < src.Data.Length - 1; i++)
+                for (int i = 0; i < src.Data.Length; i++)
                 {
                     if (double.TryParse(src.Data[i].ToString(), NumberStyles.Float, Culture.NumberFormatInfo, out entry))
                     {
diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index a9b6e67..eeb125e 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -28,6 +28,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics; //for [DebuggerNonUserCode]
 using System.Globalization;
 using System.IO;
 using System.Reflection;
@@ -112,6 +113,8 @@ namespace OpenSim.Region.ScriptEngine.XEngine
         private Dictionary<UUID, IScriptInstance> m_Scripts =
                 new Dictionary<UUID, IScriptInstance>();
 
+        private OpenMetaverse.ReaderWriterLockSlim m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim();
+
         // Maps the asset ID to the assembly
 
         private Dictionary<UUID, string> m_Assemblies =
@@ -134,6 +137,71 @@ namespace OpenSim.Region.ScriptEngine.XEngine
         IWorkItemResult m_CurrentCompile = null;
         private Dictionary<UUID, int> m_CompileDict = new Dictionary<UUID, int>();
 
+        private void lockScriptsForRead(bool locked)
+        {
+            if (locked)
+            {
+                if (m_scriptsLock.RecursiveReadCount > 0)
+                {
+                    m_log.Error("[XEngine.m_Scripts] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue.");
+                    m_scriptsLock.ExitReadLock();
+                }
+                if (m_scriptsLock.RecursiveWriteCount > 0)
+                {
+                    m_log.Error("[XEngine.m_Scripts] Recursive write lock requested. This should not happen and means something needs to be fixed.");
+                    m_scriptsLock.ExitWriteLock();
+                }
+
+                while (!m_scriptsLock.TryEnterReadLock(60000))
+                {
+                    m_log.Error("[XEngine.m_Scripts] Thread lock detected while trying to aquire READ lock of m_scripts in XEngine. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed.");
+                    if (m_scriptsLock.IsWriteLockHeld)
+                    {
+                        m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim();
+                    }
+                }
+            }
+            else
+            {
+                if (m_scriptsLock.RecursiveReadCount > 0)
+                {
+                    m_scriptsLock.ExitReadLock();
+                }
+            }
+        }
+        private void lockScriptsForWrite(bool locked)
+        {
+            if (locked)
+            {
+                if (m_scriptsLock.RecursiveReadCount > 0)
+                {
+                    m_log.Error("[XEngine.m_Scripts] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue.");
+                    m_scriptsLock.ExitReadLock();
+                }
+                if (m_scriptsLock.RecursiveWriteCount > 0)
+                {
+                    m_log.Error("[XEngine.m_Scripts] Recursive write lock requested. This should not happen and means something needs to be fixed.");
+                    m_scriptsLock.ExitWriteLock();
+                }
+
+                while (!m_scriptsLock.TryEnterWriteLock(60000))
+                {
+                    m_log.Error("[XEngine.m_Scripts] Thread lock detected while trying to aquire WRITE lock of m_scripts in XEngine. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed.");
+                    if (m_scriptsLock.IsWriteLockHeld)
+                    {
+                        m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim();
+                    }
+                }
+            }
+            else
+            {
+                if (m_scriptsLock.RecursiveWriteCount > 0)
+                {
+                    m_scriptsLock.ExitWriteLock();
+                }
+            }
+        }
+
         public string ScriptEngineName
         {
             get { return "XEngine"; }
@@ -527,44 +595,37 @@ namespace OpenSim.Region.ScriptEngine.XEngine
         {
             if (!m_Enabled)
                 return;
-
-            lock (m_Scripts)
+            lockScriptsForRead(true);
+            foreach (IScriptInstance instance in m_Scripts.Values)
             {
-                m_log.InfoFormat(
-                    "[XEngine]: Shutting down {0} scripts in {1}", m_Scripts.Count, m_Scene.RegionInfo.RegionName);
-
-                foreach (IScriptInstance instance in m_Scripts.Values)
+                // Force a final state save
+                //
+                if (m_Assemblies.ContainsKey(instance.AssetID))
                 {
-                    // Force a final state save
-                    //
-                    if (m_Assemblies.ContainsKey(instance.AssetID))
-                    {
-                        string assembly = m_Assemblies[instance.AssetID];
-                        instance.SaveState(assembly);
-                    }
+                    string assembly = m_Assemblies[instance.AssetID];
+                    instance.SaveState(assembly);
+                }
 
-                    // Clear the event queue and abort the instance thread
-                    //
-                    instance.ClearQueue();
-                    instance.Stop(0);
+                // Clear the event queue and abort the instance thread
+                //
+                instance.ClearQueue();
+                instance.Stop(0);
 
-                    // Release events, timer, etc
-                    //
-                    instance.DestroyScriptInstance();
-
-                    // Unload scripts and app domains.
-                    // Must be done explicitly because they have infinite
-                    // lifetime.
-                    // However, don't bother to do this if the simulator is shutting
-                    // down since it takes a long time with many scripts.
-                    if (!m_SimulatorShuttingDown)
+                // Release events, timer, etc
+                //
+                instance.DestroyScriptInstance();
+
+                // Unload scripts and app domains
+                // Must be done explicitly because they have infinite
+                // lifetime
+                //
+                if (!m_SimulatorShuttingDown)
+                {
+                    m_DomainScripts[instance.AppDomain].Remove(instance.ItemID);
+                    if (m_DomainScripts[instance.AppDomain].Count == 0)
                     {
-                        m_DomainScripts[instance.AppDomain].Remove(instance.ItemID);
-                        if (m_DomainScripts[instance.AppDomain].Count == 0)
-                        {
-                            m_DomainScripts.Remove(instance.AppDomain);
-                            UnloadAppDomain(instance.AppDomain);
-                        }
+                        m_DomainScripts.Remove(instance.AppDomain);
+                        UnloadAppDomain(instance.AppDomain);
                     }
                 }
 
@@ -573,6 +634,14 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 m_Assemblies.Clear();
                 m_DomainScripts.Clear();
             }
+            lockScriptsForRead(false);
+            lockScriptsForWrite(true);
+            m_Scripts.Clear();
+            lockScriptsForWrite(false);
+            m_PrimObjects.Clear();
+            m_Assemblies.Clear();
+            m_DomainScripts.Clear();
+           
             lock (m_ScriptEngines)
             {
                 m_ScriptEngines.Remove(this);
@@ -637,22 +706,20 @@ namespace OpenSim.Region.ScriptEngine.XEngine
 
             List<IScriptInstance> instances = new List<IScriptInstance>();
 
-            lock (m_Scripts)
-            {
-                foreach (IScriptInstance instance in m_Scripts.Values)
+            lockScriptsForRead(true);
+                 foreach (IScriptInstance instance in m_Scripts.Values)
                     instances.Add(instance);
-            }
+            lockScriptsForRead(false);
 
             foreach (IScriptInstance i in instances)
             {
                 string assembly = String.Empty;
 
-                lock (m_Scripts)
-                {
+                
                     if (!m_Assemblies.ContainsKey(i.AssetID))
                         continue;
                     assembly = m_Assemblies[i.AssetID];
-                }
+                
 
                 i.SaveState(assembly);
             }
@@ -996,95 +1063,99 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             }
 
             ScriptInstance instance = null;
-            lock (m_Scripts)
+            // Create the object record
+            lockScriptsForRead(true);
+            if ((!m_Scripts.ContainsKey(itemID)) ||
+                (m_Scripts[itemID].AssetID != assetID))
             {
-                // Create the object record
-                if ((!m_Scripts.ContainsKey(itemID)) ||
-                    (m_Scripts[itemID].AssetID != assetID))
-                {
-                    UUID appDomain = assetID;
+                lockScriptsForRead(false);
 
-                    if (part.ParentGroup.IsAttachment)
-                        appDomain = part.ParentGroup.RootPart.UUID;
+                UUID appDomain = assetID;
 
-                    if (!m_AppDomains.ContainsKey(appDomain))
-                    {
-                        try
-                        {
-                            AppDomainSetup appSetup = new AppDomainSetup();
-                            appSetup.PrivateBinPath = Path.Combine(
-                                    m_ScriptEnginesPath,
-                                    m_Scene.RegionInfo.RegionID.ToString());
+                if (part.ParentGroup.IsAttachment)
+                    appDomain = part.ParentGroup.RootPart.UUID;
 
-                            Evidence baseEvidence = AppDomain.CurrentDomain.Evidence;
-                            Evidence evidence = new Evidence(baseEvidence);
+                if (!m_AppDomains.ContainsKey(appDomain))
+                {
+                    try
+                    {
+                        AppDomainSetup appSetup = new AppDomainSetup();
+                        appSetup.PrivateBinPath = Path.Combine(
+                                m_ScriptEnginesPath,
+                                m_Scene.RegionInfo.RegionID.ToString());
 
-                            AppDomain sandbox;
-                            if (m_AppDomainLoading)
-                            {
-                                sandbox = AppDomain.CreateDomain(
-                                                m_Scene.RegionInfo.RegionID.ToString(),
-                                                evidence, appSetup);
-                                sandbox.AssemblyResolve +=
-                                    new ResolveEventHandler(
-                                        AssemblyResolver.OnAssemblyResolve);
-                            }
-                            else
-                            {
-                                sandbox = AppDomain.CurrentDomain;
-                            }
-                            
-                            //PolicyLevel sandboxPolicy = PolicyLevel.CreateAppDomainLevel();
-                            //AllMembershipCondition sandboxMembershipCondition = new AllMembershipCondition();
-                            //PermissionSet sandboxPermissionSet = sandboxPolicy.GetNamedPermissionSet("Internet");
-                            //PolicyStatement sandboxPolicyStatement = new PolicyStatement(sandboxPermissionSet);
-                            //CodeGroup sandboxCodeGroup = new UnionCodeGroup(sandboxMembershipCondition, sandboxPolicyStatement);
-                            //sandboxPolicy.RootCodeGroup = sandboxCodeGroup;
-                            //sandbox.SetAppDomainPolicy(sandboxPolicy);
-                            
-                            m_AppDomains[appDomain] = sandbox;
+                        Evidence baseEvidence = AppDomain.CurrentDomain.Evidence;
+                        Evidence evidence = new Evidence(baseEvidence);
 
-                            m_DomainScripts[appDomain] = new List<UUID>();
+                        AppDomain sandbox;
+                        if (m_AppDomainLoading)
+                        {
+                            sandbox = AppDomain.CreateDomain(
+                                            m_Scene.RegionInfo.RegionID.ToString(),
+                                            evidence, appSetup);
+                            m_AppDomains[appDomain].AssemblyResolve +=
+                                new ResolveEventHandler(
+                                    AssemblyResolver.OnAssemblyResolve);
                         }
-                        catch (Exception e)
+                        else
                         {
-                            m_log.ErrorFormat("[XEngine] Exception creating app domain:\n {0}", e.ToString());
-                            m_ScriptErrorMessage += "Exception creating app domain:\n";
-                            m_ScriptFailCount++;
-                            lock (m_AddingAssemblies) 
-                            {
-                                m_AddingAssemblies[assembly]--;
-                            }
-                            return false;
+                            sandbox = AppDomain.CurrentDomain;
                         }
-                    }
-                    m_DomainScripts[appDomain].Add(itemID);
-
-                    instance = new ScriptInstance(this, part,
-                                                  itemID, assetID, assembly,
-                                                  m_AppDomains[appDomain],
-                                                  part.ParentGroup.RootPart.Name,
-                                                  item.Name, startParam, postOnRez,
-                                                  stateSource, m_MaxScriptQueue);
-                    
-                    m_log.DebugFormat(
-                        "[XEngine] Loaded script {0}.{1}, item UUID {2}, prim UUID {3} @ {4}.{5}",
-                        part.ParentGroup.RootPart.Name, item.Name, itemID, part.UUID,
-                        part.ParentGroup.RootPart.AbsolutePosition, part.ParentGroup.Scene.RegionInfo.RegionName);
 
-                    if (presence != null)
+                        //PolicyLevel sandboxPolicy = PolicyLevel.CreateAppDomainLevel();
+                        //AllMembershipCondition sandboxMembershipCondition = new AllMembershipCondition();
+                        //PermissionSet sandboxPermissionSet = sandboxPolicy.GetNamedPermissionSet("Internet");
+                        //PolicyStatement sandboxPolicyStatement = new PolicyStatement(sandboxPermissionSet);
+                        //CodeGroup sandboxCodeGroup = new UnionCodeGroup(sandboxMembershipCondition, sandboxPolicyStatement);
+                        //sandboxPolicy.RootCodeGroup = sandboxCodeGroup;
+                        //sandbox.SetAppDomainPolicy(sandboxPolicy);
+
+                        m_AppDomains[appDomain] = sandbox;
+
+                        m_DomainScripts[appDomain] = new List<UUID>();
+                    }
+                    catch (Exception e)
                     {
-                        ShowScriptSaveResponse(item.OwnerID,
-                                assetID, "Compile successful", true);
+                        m_log.ErrorFormat("[XEngine] Exception creating app domain:\n {0}", e.ToString());
+                        m_ScriptErrorMessage += "Exception creating app domain:\n";
+                        m_ScriptFailCount++;
+                        lock (m_AddingAssemblies)
+                        {
+                            m_AddingAssemblies[assembly]--;
+                        }
+                        return false;
                     }
+                }
+                m_DomainScripts[appDomain].Add(itemID);
+
+                instance = new ScriptInstance(this, part,
+                                              itemID, assetID, assembly,
+                                              m_AppDomains[appDomain],
+                                              part.ParentGroup.RootPart.Name,
+                                              item.Name, startParam, postOnRez,
+                                              stateSource, m_MaxScriptQueue);
+
+                m_log.DebugFormat(
+                        "[XEngine] Loaded script {0}.{1}, script UUID {2}, prim UUID {3} @ {4}.{5}",
+                        part.ParentGroup.RootPart.Name, item.Name, assetID, part.UUID, 
+                        part.ParentGroup.RootPart.AbsolutePosition, part.ParentGroup.Scene.RegionInfo.RegionName);
 
-                    instance.AppDomain = appDomain;
-                    instance.LineMap = linemap;
-
-                    m_Scripts[itemID] = instance;
+                if (presence != null)
+                {
+                    ShowScriptSaveResponse(item.OwnerID,
+                            assetID, "Compile successful", true);
                 }
-            }
 
+                instance.AppDomain = appDomain;
+                instance.LineMap = linemap;
+                lockScriptsForWrite(true);
+                m_Scripts[itemID] = instance;
+                lockScriptsForWrite(false);
+            }
+            else
+            {
+                lockScriptsForRead(false);
+            }
             lock (m_PrimObjects)
             {
                 if (!m_PrimObjects.ContainsKey(localID))
@@ -1102,9 +1173,9 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 m_AddingAssemblies[assembly]--;
             }
 
-            if (instance != null) 
+            if (instance!=null) 
                 instance.Init();
-
+            
             return true;
         }
 
@@ -1117,18 +1188,28 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     m_CompileDict.Remove(itemID);
             }
 
-            IScriptInstance instance = null;
-
-            lock (m_Scripts)
+            lockScriptsForRead(true);
+            // Do we even have it?
+            if (!m_Scripts.ContainsKey(itemID))
             {
                 // Do we even have it?
                 if (!m_Scripts.ContainsKey(itemID))
                     return;
 
-                instance = m_Scripts[itemID];
+                lockScriptsForRead(false);
+                lockScriptsForWrite(true);
                 m_Scripts.Remove(itemID);
+                lockScriptsForWrite(false);
+
+                return;
             }
+             
 
+            IScriptInstance instance=m_Scripts[itemID];
+            lockScriptsForRead(false);
+            lockScriptsForWrite(true);
+            m_Scripts.Remove(itemID);
+            lockScriptsForWrite(false);
             instance.ClearQueue();
 
             // Give the script some time to finish processing its last event.  Simply aborting the script thread can
@@ -1167,8 +1248,13 @@ namespace OpenSim.Region.ScriptEngine.XEngine
 
             ObjectRemoved handlerObjectRemoved = OnObjectRemoved;
             if (handlerObjectRemoved != null)
-                handlerObjectRemoved(instance.ObjectID);
+            {
+                SceneObjectPart part = m_Scene.GetSceneObjectPart(localID);                    
+                handlerObjectRemoved(part.UUID);
+            }
 
+            CleanAssemblies();
+            
             ScriptRemoved handlerScriptRemoved = OnScriptRemoved;
             if (handlerScriptRemoved != null)
                 handlerScriptRemoved(itemID);
@@ -1310,7 +1396,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     return false;
 
                 uuids = m_PrimObjects[localID];
-            }
+            
 
             foreach (UUID itemID in uuids)
             {
@@ -1328,6 +1414,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     result = true;
                 }
             }
+            }
             
             return result;
         }
@@ -1429,12 +1516,14 @@ namespace OpenSim.Region.ScriptEngine.XEngine
         private IScriptInstance GetInstance(UUID itemID)
         {
             IScriptInstance instance;
-            lock (m_Scripts)
+            lockScriptsForRead(true);
+            if (!m_Scripts.ContainsKey(itemID))
             {
-                if (!m_Scripts.ContainsKey(itemID))
-                    return null;
-                instance = m_Scripts[itemID];
+                lockScriptsForRead(false);
+                return null;
             }
+            instance = m_Scripts[itemID];
+            lockScriptsForRead(false);
             return instance;
         }
 
@@ -1458,6 +1547,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             return false;
         }
 
+        [DebuggerNonUserCode]
         public void ApiResetScript(UUID itemID)
         {
             IScriptInstance instance = GetInstance(itemID);
@@ -1509,6 +1599,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             return UUID.Zero;
         }
 
+        [DebuggerNonUserCode]
         public void SetState(UUID itemID, string newState)
         {
             IScriptInstance instance = GetInstance(itemID);
@@ -1531,11 +1622,10 @@ namespace OpenSim.Region.ScriptEngine.XEngine
 
             List<IScriptInstance> instances = new List<IScriptInstance>();
 
-            lock (m_Scripts)
-            {
-                foreach (IScriptInstance instance in m_Scripts.Values)
+            lockScriptsForRead(true);
+            foreach (IScriptInstance instance in m_Scripts.Values)
                     instances.Add(instance);
-            }
+            lockScriptsForRead(false);
 
             foreach (IScriptInstance i in instances)
             {
@@ -1989,5 +2079,17 @@ namespace OpenSim.Region.ScriptEngine.XEngine
 //            else
 //                m_log.DebugFormat("[XEngine]: Could not find script with ID {0} to resume", itemID);
         }
+
+        public bool HasScript(UUID itemID, out bool running)
+        {
+            running = true;
+
+            IScriptInstance instance = GetInstance(itemID);
+            if (instance == null)
+                return false;
+
+            running = instance.Running;
+            return true;
+        }
     }
 }