/Aurora/Region/SceneObjectPart.cs

/*

 * Copyright (c) Contributors, http://aurora-sim.org/, 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 Aurora-Sim 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 Aurora.Framework;

using Aurora.Framework.ClientInterfaces;

using Aurora.Framework.ConsoleFramework;

using Aurora.Framework.Modules;

using Aurora.Framework.Physics;

using Aurora.Framework.PresenceInfo;

using Aurora.Framework.SceneInfo;

using Aurora.Framework.SceneInfo.Entities;

using Aurora.Framework.Serialization;

using Aurora.Framework.Services.ClassHelpers.Assets;

using Aurora.Framework.Utilities;

using OpenMetaverse;

using OpenMetaverse.Packets;

using OpenMetaverse.StructuredData;

using ProtoBuf;

using System;

using System.Collections.Generic;

using System.Drawing;

using System.Linq;

using System.Xml;

using System.Xml.Serialization;

using PrimType = Aurora.Framework.SceneInfo.PrimType;



namespace Aurora.Region

{

    [Serializable, ProtoContract()]

    public class SceneObjectPart : ISceneChildEntity

    {

        /// <value>

        ///     Denote all sides of the prim

        /// </value>

        public const int ALL_SIDES = -1;



        public virtual Quaternion GroupRotation

        {

            get { return ParentGroup.GroupRotation; }

        }



        #region ISceneChildEntity Members



        /// <value>

        ///     Is this sop a root part?

        /// </value>

        [XmlIgnore]

        public bool IsRoot

        {

            get { return ParentGroup.RootPart == this; }

        }



        public virtual Quaternion Rotation

        {

            get { return ParentGroup.GroupRotation; }

            set { }

        }



        //---------------



        public void ApplyNextOwnerPermissions()

        {

            _baseMask &= _nextOwnerMask;

            _ownerMask &= _nextOwnerMask;

            _everyoneMask &= _nextOwnerMask;



            Inventory.ApplyNextOwnerPermissions();

        }



        public Color4 GetTextColor()

        {

            Color color = Color;

            return new Color4(color.R, color.G, color.B, (byte) (0xFF - color.A));

        }



        public void SetSoundQueueing(int queue)

        {

            UseSoundQueue = queue;

        }



        public void SetConeOfSilence(double radius)

        {

            ISoundModule module = m_parentGroup.Scene.RequestModuleInterface<ISoundModule>();

            //TODO: Save SetConeOfSilence

            if (module != null)

            {

                if (radius != 0)

                    module.AddConeOfSilence(UUID, AbsolutePosition, radius);

                else

                    module.RemoveConeOfSilence(UUID);

            }

        }



        #endregion



        #region Fields



        private readonly List<uint> m_lastColliders = new List<uint>();

        [XmlIgnore] public scriptEvents AggregateScriptEvents;

        [XmlIgnore] public bool IgnoreUndoUpdate;

        [XmlIgnore] public bool IsWaitingForFirstSpinUpdatePacket;

        [XmlIgnore] private PrimFlags LocalFlags;

        [XmlIgnore] public Vector3 RotationAxis = Vector3.One;

        [XmlIgnore] public Quaternion SpinOldOrientation = Quaternion.Identity;

        [XmlIgnore] public uint TimeStampLastActivity; // Will be used for AutoReturn



        [XmlIgnore]

        public bool Undoing { get; set; }



        private UUID _creatorID;



        [XmlIgnore] private UUID m_AttachedAvatar;

        [XmlIgnore] private Dictionary<int, string> m_CollisionFilter = new Dictionary<int, string>();

        [XmlIgnore] private bool m_IsAttachment;

        [XmlIgnore] private bool m_IsSelected;

        [XmlIgnore] private int[] m_PayPrice = {-2, -2, -2, -2, -2};

        [XmlIgnore] private bool m_ValidpartOOB; // control recalcutation

        protected Vector3 m_acceleration;

        protected Vector3 m_angularVelocity;

        private byte m_clickAction;

        private UUID m_collisionSound;

        private float m_collisionSoundVolume;

        private UUID m_collisionSprite;

        protected uint m_crc;

        private string m_creatorData = string.Empty;

        private string m_description = String.Empty;

        protected Vector3 m_groupPosition;

        private Vector3 m_initialPIDLocation = Vector3.Zero;

        protected SceneObjectPartInventory m_inventory;

        protected Vector3 m_lastAcceleration;

        protected Vector3 m_lastAngularVelocity;

        protected Vector3 m_lastGroupPosition;

        protected Vector3 m_lastPosition;

        protected Quaternion m_lastRotation;

        protected Vector3 m_lastVelocity;

        private int m_linkNum;

        protected uint m_localId;



        /// <summary>

        ///     Stores media texture data

        /// </summary>

        protected string m_mediaUrl;



        protected string m_name;

        protected Vector3 m_offsetPosition;



        protected SceneObjectGroup m_parentGroup;

        [XmlIgnore] private float m_partBSphereRadiusSQ; // the square of the radius of a sphere containing the oob



        [XmlIgnore] private Vector3 m_partOOBoffset;

        // the position center of the bounding box relative to it's Position



        [XmlIgnore] private Vector3 m_partOOBsize;

        // the size of a bounding box oriented as prim, is future will consider cutted prims, meshs etc



        protected byte[] m_particleSystem = Utils.EmptyBytes;

        private int m_passTouches;



        private PhysicsObject m_physActor;

        private bool m_pidActive;

        private bool m_pidhoverActive;

        private UndoStack<UndoState> m_redo = new UndoStack<UndoState>(5);

        protected ulong m_regionHandle;

        [XmlIgnore] private int m_scriptAccessPin;

        [XmlIgnore] private Dictionary<UUID, scriptEvents> m_scriptEvents = new Dictionary<UUID, scriptEvents>();

        protected PrimitiveBaseShape m_shape;

        private string m_sitAnimation = "SIT";

        private string m_sitName = String.Empty;

        private UUID m_sound;

        private string m_text = String.Empty;

        private string m_touchName = String.Empty;

        private UndoStack<UndoState> m_undo = new UndoStack<UndoState>(5);

        protected UUID m_uuid;

        private bool m_volumeDetectActive;



        [XmlIgnore]

        [ProtoMember(92)]

        public bool RETURN_AT_EDGE { get; set; }



        [XmlIgnore]

        [ProtoMember(93)]

        public bool BlockGrab { get; set; }



        [XmlIgnore]

        [ProtoMember(94)]

        public bool BlockGrabObject { get; set; }



        [XmlIgnore]

        public bool IsLoading { get; set; }



        [XmlIgnore]

        [ProtoMember(96)]

        public bool StatusSandbox { get; set; }



        [XmlIgnore]

        [ProtoMember(97)]

        public Vector3 StatusSandboxPos { get; set; }



        [XmlIgnore]

        [ProtoMember(98)]

        public int STATUS_ROTATE_X { get; set; }



        [XmlIgnore]

        [ProtoMember(99)]

        public int STATUS_ROTATE_Y { get; set; }



        [XmlIgnore]

        [ProtoMember(100)]

        public int STATUS_ROTATE_Z { get; set; }



        [XmlIgnore]

        public bool ValidpartOOB

        {

            set { m_ValidpartOOB = value; }

        }



        // the size of a bounding box oriented as the prim, is future will consider cutted prims, meshs etc

        [XmlIgnore]

        public Vector3 OOBsize

        {

            get

            {

                if (!m_ValidpartOOB)

                    UpdateOOBfromOOBs();

                return m_partOOBsize;

            }

        }



        // the position center of the bounding box relative to it's Position

        // on complex forms this will not be zero

        [XmlIgnore]

        public Vector3 OOBoffset

        {

            get

            {

                if (!m_ValidpartOOB)

                    UpdateOOBfromOOBs();

                return m_partOOBoffset;

            }

        }



        // the square of the radius of a sphere containing the oobb

        [XmlIgnore]

        public float BSphereRadiusSQ

        {

            get

            {

                if (!m_ValidpartOOB)

                    UpdateOOBfromOOBs();

                return m_partBSphereRadiusSQ;

            }

        }



        [ProtoMember(1)]

        public bool AllowedDrop { get; set; }



        [XmlIgnore]

        [ProtoMember(91)]

        public bool DIE_AT_EDGE { get; set; }



        [XmlIgnore]

        [ProtoMember(90)]

        public int UseSoundQueue { get; set; }



        [ProtoMember(70, OverwriteList = true)]

        public int[] PayPrice

        {

            get { return m_PayPrice; }

            set { m_PayPrice = value; }

        }



        [XmlIgnore]

        public PhysicsObject PhysActor

        {

            get { return m_physActor; }

            set

            {

//                MainConsole.Instance.DebugFormat("[SOP]: PhysActor set to {0} for {1} {2}", value, Name, UUID);

                m_physActor = value;

            }

        }



        [XmlIgnore]

        [ProtoMember(71)]

        public UUID Sound

        {

            get { return m_sound; }

            set { m_sound = value; }

        }



        [XmlIgnore]

        [ProtoMember(72)]

        public byte SoundFlags { get; set; }



        [XmlIgnore]

        [ProtoMember(73)]

        public double SoundGain { get; set; }



        [XmlIgnore]

        [ProtoMember(74)]

        public double SoundRadius { get; set; }



        [XmlIgnore]

        [ProtoMember(75)]

        public Vector3 PIDTarget { get; set; }



        [XmlIgnore]

        [ProtoMember(76)]

        public bool PIDActive

        {

            get { return m_pidActive; }

            set

            {

                IScene s = ParentGroup == null ? null : ParentGroup.Scene ?? null;

                if (s != null)

                {

                    if (value)

                        s.EventManager.OnFrame += UpdateLookAt;

                    else

                        s.EventManager.OnFrame -= UpdateLookAt;

                }

                m_pidActive = value;

            }

        }



        [XmlIgnore]

        [ProtoMember(77)]

        public float PIDTau { get; set; }



        [ProtoMember(78)]

        public float PIDHoverHeight { get; set; }



        [ProtoMember(79)]

        public float PIDHoverTau { get; set; }



        [ProtoMember(80)]

        public bool PIDHoverActive

        {

            get { return m_pidhoverActive; }

            set { m_pidhoverActive = value; }

        }



        [ProtoMember(81)]

        public PIDHoverType PIDHoverType { get; set; }



        [XmlIgnore]

        [ProtoMember(82)]

        public UUID FromUserInventoryItemID { get; set; }



        [XmlIgnore]

        [ProtoMember(83)]

        public UUID FromUserInventoryAssetID { get; set; }



        [XmlIgnore]

        public bool IsAttachment

        {

            get { return m_IsAttachment; }

            set { m_IsAttachment = value; }

        }



        [XmlIgnore]

        public UUID AttachedAvatar

        {

            get { return m_AttachedAvatar; }

            set { m_AttachedAvatar = value; }

        }



        [XmlIgnore]

        public Vector3 AttachedPos { get; set; }



        /// <summary>

        ///     NOTE: THIS WILL NOT BE UP TO DATE AS THEY WILL BE ONE REV BEHIND

        ///     Used to save attachment pos and point over rezzing/taking

        /// </summary>

        [XmlIgnore]

        public int AttachmentPoint { get; set; }



        /// <summary>

        ///     NOTE: THIS WILL NOT BE UP TO DATE AS THEY WILL BE ONE REV BEHIND

        ///     Used to save attachment pos and point over rezzing/taking

        /// </summary>

        [ProtoMember(84)]

        public Vector3 SavedAttachedPos { get; set; }





        [ProtoMember(85)]

        public int SavedAttachmentPoint { get; set; }



        [XmlIgnore]

        [ProtoMember(86)]

        public bool VolumeDetectActive

        {

            get { return m_volumeDetectActive; }

            set { m_volumeDetectActive = value; }

        }



        /// <summary>

        ///     This part's inventory

        /// </summary>

        [XmlIgnore]

        public IEntityInventory Inventory

        {

            get { return m_inventory; }

        }



        [ProtoMember(87)]

        public Vector3 CameraEyeOffset { get; set; }



        [ProtoMember(88)]

        public Vector3 CameraAtOffset { get; set; }



        [ProtoMember(89)]

        public bool ForceMouselook { get; set; }



        [ProtoMember(102)]

        public KeyframeAnimation KeyframeAnimation { get; set; }



        [ProtoMember(103)]

        public Dictionary<UUID, StateSave> StateSaves { get; set; }



        public Vector3 GroupScale()

        {

            return m_parentGroup.GroupScale();

        }



        #endregion Fields



        #region Constructors



        /// <summary>

        ///     No arg constructor called by region restore db code

        /// </summary>

        public SceneObjectPart()

        {

            SitTargetAvatar = new List<UUID>();

            StateSaves = new Dictionary<UUID, StateSave>();



            m_inventory = new SceneObjectPartInventory(this);

            m_shape = new PrimitiveBaseShape();

            Material = (int) OpenMetaverse.Material.Wood;

        }



        /// <summary>

        ///     Create a completely new SceneObjectPart (prim).  This will need to be added separately to a SceneObjectGroup

        /// </summary>

        /// <param name="ownerID"></param>

        /// <param name="shape"></param>

        /// <param name="groupPosition"></param>

        /// <param name="rotationOffset"></param>

        /// <param name="offsetPosition"></param>

        /// <param name="name"></param>

        public SceneObjectPart(

            UUID ownerID, PrimitiveBaseShape shape, Vector3 groupPosition,

            Quaternion rotationOffset, Vector3 offsetPosition, string name)

        {

            m_name = name;



            CreationDate = (int) Utils.DateTimeToUnixTime(DateTime.Now);

            _ownerID = ownerID;

            _creatorID = _ownerID;

            LastOwnerID = UUID.Zero;

            UUID = UUID.Random();

            Shape = shape;

            CRC = 1;

            _ownershipCost = 0;

            _flags = 0;

            _groupID = UUID.Zero;

            _objectSaleType = 0;

            _salePrice = 0;

            _category = 0;

            LastOwnerID = _creatorID;

            m_groupPosition = groupPosition;

            m_offsetPosition = offsetPosition;

            RotationOffset = rotationOffset;

            Velocity = Vector3.Zero;

            AngularVelocity = Vector3.Zero;

            Acceleration = Vector3.Zero;

            SitTargetAvatar = new List<UUID>();

            StateSaves = new Dictionary<UUID, StateSave>();



            ValidpartOOB = false;



            // Prims currently only contain a single folder (Contents).  From looking at the Second Life protocol,

            // this appears to have the same UUID (!) as the prim.  If this isn't the case, one can't drag items from

            // the prim into an agent inventory (Linden client reports that the "Object not found for drop" in its log



            Flags = 0;

            CreateSelected = true;



            TrimPermissions();

            //m_undo = new UndoStack<UndoState>(ParentGroup.GetSceneMaxUndo());



            m_inventory = new SceneObjectPartInventory(this);

            Material = (int) OpenMetaverse.Material.Wood;

        }



        public override int GetHashCode()

        {

            return UUID.GetHashCode();

        }



        #endregion Constructors



        #region XML Schema



        private uint _baseMask = (uint) PermissionMask.All;

        private uint _category;

        private uint _everyoneMask = (uint) PermissionMask.None;

        private PrimFlags _flags = PrimFlags.None;

        private UUID _groupID;

        private uint _groupMask = (uint) PermissionMask.None;

        private uint _nextOwnerMask = (uint) PermissionMask.All;

        private byte _objectSaleType;

        private UUID _ownerID;

        private uint _ownerMask = (uint) PermissionMask.All;

        private int _ownershipCost;

        private uint _parentID;

        private int _salePrice;

        private List<SceneObjectPart> m_LoopSoundSlavePrims = new List<SceneObjectPart>();

        private byte[] m_ParticleSystem;

        private List<SceneObjectPart> m_PlaySoundSlavePrims = new List<SceneObjectPart>();

        private string m_currentMediaVersion = "x-mv:0000000001/00000000-0000-0000-0000-000000000000";

        private int m_passCollision;

        private byte[] m_textureAnimation;



        [XmlIgnore]

        public string CurrentMediaVersion

        {

            get { return m_currentMediaVersion; }

            set { m_currentMediaVersion = value; }

        }



        /// <summary>

        ///     Used by the DB layer to retrieve / store the entire user identification.

        ///     The identification can either be a simple UUID or a string of the form

        ///     uuid[;profile_url[;name]]

        /// </summary>

        public string CreatorIdentification

        {

            get

            {

                if (!string.IsNullOrEmpty(m_creatorData))

                    return _creatorID.ToString() + ';' + m_creatorData;

                else

                    return _creatorID.ToString();

            }

            set

            {

                if ((value == null) || (value != null && value == string.Empty))

                {

                    m_creatorData = string.Empty;

                    return;

                }



                if (!value.Contains(";")) // plain UUID

                {

                    UUID uuid = UUID.Zero;

                    UUID.TryParse(value, out uuid);

                    _creatorID = uuid;

                }

                else // <uuid>[;<endpoint>[;name]]

                {

                    string name = "Unknown User";

                    string[] parts = value.Split(';');

                    if (parts.Length >= 1)

                    {

                        UUID uuid = UUID.Zero;

                        UUID.TryParse(parts[0], out uuid);

                        _creatorID = uuid;

                    }

                    if (parts.Length >= 2)

                        m_creatorData = parts[1];

                    if (parts.Length >= 3)

                        name = parts[2];



                    m_creatorData += ';' + name;

                }

            }

        }



        /// <summary>

        ///     This is idential to the Flags property, except that the returned value is uint rather than PrimFlags

        /// </summary>

        [Obsolete("Use Flags property instead")]

        public uint ObjectFlags

        {

            get { return (uint) Flags; }

            set

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                Flags = (PrimFlags) value;

            }

        }



        private Quaternion m_APIDTarget;



        [XmlIgnore, ProtoMember(65)]

        public Quaternion APIDTarget

        {

            get { return m_APIDTarget; }

            set

            {

                IScene s = ParentGroup == null ? null : ParentGroup.Scene ?? null;

                if (s != null)

                {

                    if (value != Quaternion.Identity)

                        s.EventManager.OnFrame += UpdateLookAt;

                    else

                        s.EventManager.OnFrame -= UpdateLookAt;

                }

                m_APIDTarget = value;

            }

        }



        [XmlIgnore, ProtoMember(66)]

        public float APIDDamp { get; set; }



        [XmlIgnore, ProtoMember(67)]

        public float APIDStrength { get; set; }



        [ProtoMember(68)]

        public int APIDIterations { get; set; }



        [ProtoMember(69)]

        public bool APIDEnabled { get; set; }



        [XmlIgnore]

        public SceneObjectPart PlaySoundMasterPrim { get; set; }



        [XmlIgnore]

        public List<SceneObjectPart> PlaySoundSlavePrims

        {

            get { return m_PlaySoundSlavePrims; }

            set { m_PlaySoundSlavePrims = value; }

        }



        [XmlIgnore]

        public SceneObjectPart LoopSoundMasterPrim { get; set; }



        [XmlIgnore]

        public List<SceneObjectPart> LoopSoundSlavePrims

        {

            get { return m_LoopSoundSlavePrims; }

            set { m_LoopSoundSlavePrims = value; }

        }



        [XmlIgnore, ProtoMember(64)]

        public float Damage { get; set; }



        public Vector3 RelativePosition

        {

            get

            {

                if (IsRoot)

                {

                    if (IsAttachment)

                        return OffsetPosition;

                    else

                        return AbsolutePosition;

                }

                else

                {

                    return OffsetPosition;

                }

            }

        }



        [ProtoMember(2)]

        public UUID CreatorID

        {

            get { return _creatorID; }

            set { _creatorID = value; }

        }



        /// <summary>

        ///     Data about the creator in the form profile_url;name

        /// </summary>

        [ProtoMember(3)]

        public string CreatorData

        {

            get { return m_creatorData; }

            set { m_creatorData = value; }

        }



        /// <value>

        ///     Access should be via Inventory directly - this property temporarily remains for xml serialization purposes

        /// </value>

        [ProtoMember(4)]

        public uint InventorySerial

        {

            get { return m_inventory.Serial; }

            set { m_inventory.Serial = value; }

        }



        /// <value>

        ///     Access should be via Inventory directly - this property temporarily remains for xml serialization purposes

        /// </value>

        [ProtoMember(5)]

        public TaskInventoryDictionary TaskInventory

        {

            get { return m_inventory.Items; }

            set { m_inventory.Items = value; }

        }



        [ProtoMember(6)]

        public UUID UUID

        {

            get { return m_uuid; }

            set

            {

                UUID oldID = m_uuid;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_uuid = value;



                // This is necessary so that TaskInventoryItem parent ids correctly reference the new uuid of this part

                if (Inventory != null)

                    Inventory.ResetObjectID();

            }

        }



        [ProtoMember(7)]

        public uint LocalId

        {

            get { return m_localId; }

            set { m_localId = value; }

        }



        [XmlIgnore]

        public uint CRC { get; set; }



        [ProtoMember(8)]

        public virtual string Name

        {

            get { return m_name; }

            set

            {

                if (m_name != value)

                {

                    if (ParentGroup != null)

                        ParentGroup.HasGroupChanged = true;

                    m_name = value;

                }

            }

        }



        [ProtoMember(9)]

        public int Material { get; set; }



        public void UpdateMaterial(int val)

        {

            if (Material == val)

                return;



            if (ParentGroup != null)

                ParentGroup.HasGroupChanged = true;



            Material = val;

            if (PhysActor != null)

                PhysActor.SetMaterial(val, true);

        }



        [ProtoMember(10)]

        public int PassTouch

        {

            get { return m_passTouches; }

            set

            {

                m_passTouches = value;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

            }

        }



        [ProtoMember(11)]

        public int PassCollisions

        {

            get { return m_passCollision; }

            set

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_passCollision = value;

            }

        }





        [XmlIgnore, ProtoMember(12)]

        public Dictionary<int, string> CollisionFilter

        {

            get { return m_CollisionFilter; }

            set

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_CollisionFilter = value;

            }

        }



        [ProtoMember(13)]

        public int ScriptAccessPin

        {

            get { return m_scriptAccessPin; }

            set { m_scriptAccessPin = value; }

        }



        [ProtoMember(60, OverwriteList = true)]

        public Byte[] TextureAnimation

        {

            get { return m_textureAnimation; }

            set { m_textureAnimation = value; }

        }



        [XmlIgnore]

        [ProtoMember(61, OverwriteList = true)]

        public Byte[] ParticleSystem

        {

            get { return m_ParticleSystem; }

            set { m_ParticleSystem = value; }

        }



        [XmlIgnore, ProtoMember(62)]

        public DateTime Expires { get; set; }



        [XmlIgnore, ProtoMember(63)]

        public DateTime Rezzed { get; set; }



        /// <summary>

        ///     The position of the entire group that this prim belongs to.

        /// </summary>

        [ProtoMember(14)]

        public Vector3 GroupPosition

        {

            get { return GetGroupPosition(); }

            set { FixGroupPosition(value, false); }

        }



        public Vector3 GetGroupPosition()

        {

            // If this is a linkset, we don't want the physics engine mucking up our group position here.

            PhysicsObject actor = PhysActor;

            if (actor != null && _parentID == 0)

            {

                m_groupPosition = actor.Position;

            }



            if (IsAttachment)

            {

                IScenePresence sp = m_parentGroup.Scene.GetScenePresence(AttachedAvatar);

                if (sp != null)

                    return sp.AbsolutePosition;

            }



            return m_groupPosition;

        }



        [ProtoMember(15)]

        public Vector3 OffsetPosition

        {

            get { return m_offsetPosition; }

            set

            {

                m_offsetPosition = value;

                ValidpartOOB = false;

            }

        }



        [ProtoMember(16)]

        public Quaternion RotationOffset { get; set; }



        public Quaternion GetRotationOffset()

        {

            PhysicsObject actor = m_physActor;

            if (_parentID == 0 && (m_shape.PCode != 9 || m_shape.State == 0) && actor != null)

            {

                if (actor.Orientation.X != 0f || actor.Orientation.Y != 0f

                    || actor.Orientation.Z != 0f || actor.Orientation.W != 0f)

                {

                    RotationOffset = actor.Orientation;

                }

            }

            return RotationOffset;

        }



        private Vector3 m_tempVelocity = Vector3.Zero;



        /// <summary>

        /// </summary>

        [ProtoMember(17)]

        public Vector3 Velocity

        {

            get

            {

                PhysicsObject actor = PhysActor;

                if (actor != null)

                {

                    if (actor.IsPhysical)

                    {

                        return actor.Velocity;

                    }

                }



                return m_tempVelocity;

            }



            set

            {

                PhysicsObject actor = PhysActor;

                if (actor != null)

                {

                    if (actor.IsPhysical)

                    {

                        actor.Velocity = value;

                        m_tempVelocity = Vector3.Zero;

                    }

                    else

                        m_tempVelocity = value;

                }

                else

                    m_tempVelocity = value;

            }

        }



        /// <summary>

        /// </summary>

        [ProtoMember(18)]

        public Vector3 AngularVelocity

        {

            get

            {

                PhysicsObject actor = PhysActor;

                if ((actor != null) && actor.IsPhysical)

                {

                    m_angularVelocity = actor.RotationalVelocity;

                }

                return m_angularVelocity;

            }

            set { m_angularVelocity = value; }

        }



        public void GenerateRotationalVelocityFromOmega()

        {

            if (OmegaGain == 0.0f) //Disable spin

                AngularVelocity = Vector3.Zero;

            else

                AngularVelocity = new Vector3((float) (OmegaAxis.X*OmegaSpinRate),

                                              (float) (OmegaAxis.Y*OmegaSpinRate),

                                              (float) (OmegaAxis.Z*OmegaSpinRate));

        }



        /// <summary>

        /// </summary>

        [ProtoMember(19)]

        public Vector3 Acceleration

        {

            get { return m_acceleration; }

            set { m_acceleration = value; }

        }



        [ProtoMember(20)]

        public string Description

        {

            get { return m_description; }

            set

            {

                if (m_description == value)

                    return;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_description = value;

            }

        }



        /// <value>

        ///     Text color.

        /// </value>

        [XmlIgnore]

        [ProtoMember(21)]

        public Color Color { get; set; }



        public void UpdateColor(Color c, bool triggerChangedColor)

        {

            if (c.A != Color.A ||

                c.B != Color.B ||

                c.G != Color.G ||

                c.R != Color.R)

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                Color = c;

                if (triggerChangedColor)

                    TriggerScriptChangedEvent(Changed.COLOR);



                /* ScheduleFullUpdate() need not be called b/c after

                 * setting the color, the text will be set, so then

                 * ScheduleFullUpdate() will be called. */

                //ScheduleFullUpdate();

            }

        }



        [ProtoMember(22)]

        public string Text

        {

            get

            {

                string returnstr = m_text;

                if (returnstr.Length > 255)

                {

                    returnstr = returnstr.Substring(0, 254);

                }

                return returnstr;

            }

            set

            {

                if (m_text == value)

                    return;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_text = value;

            }

        }





        [ProtoMember(23)]

        public string SitName

        {

            get { return m_sitName; }

            set

            {

                if (m_sitName == value)

                    return;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_sitName = value;

            }

        }



        [ProtoMember(24)]

        public string TouchName

        {

            get { return m_touchName; }

            set

            {

                if (m_touchName == value)

                    return;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_touchName = value;

            }

        }



        [ProtoMember(25)]

        public int LinkNum

        {

            get { return m_linkNum; }

            set

            {

                if (m_linkNum == value)

                    return;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_linkNum = value;

            }

        }



        [ProtoMember(26)]

        public byte ClickAction

        {

            get { return m_clickAction; }

            set

            {

                if (m_clickAction == value)

                    return;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_clickAction = value;

            }

        }



        [ProtoMember(27)]

        public PrimitiveBaseShape Shape

        {

            get { return m_shape; }

            set

            {

                ValidpartOOB = false;

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                bool shape_changed = false;

                // TODO: this should really be restricted to the right

                // set of attributes on shape change.  For instance,

                // changing the lighting on a shape shouldn't cause

                // this.

                if (m_shape != null)

                    shape_changed = true;



                m_shape = value;



                if (shape_changed)

                    TriggerScriptChangedEvent(Changed.SHAPE);

            }

        }



        public Vector3 Scale

        {

            get { return m_shape.Scale; }

            set

            {

                ValidpartOOB = false;

                if (m_shape != null)

                {

                    if (m_shape.Scale != value)

                    {

                        StoreUndoState();

                        if (ParentGroup != null)

                            ParentGroup.HasGroupChanged = true;



                        m_shape.Scale = value;



                        PhysicsActor actor = PhysActor;

                        if (actor != null && m_parentGroup != null &&

                            m_parentGroup.Scene != null &&

                            m_parentGroup.Scene.PhysicsScene != null)

                            actor.Size = m_shape.Scale;

                        TriggerScriptChangedEvent(Changed.SCALE);

                    }

                }

            }

        }



        /// <summary>

        ///     Used for media on a prim.

        /// </summary>

        /// Do not change this value directly - always do it through an IMoapModule.

        [ProtoMember(29)]

        public string MediaUrl

        {

            get { return m_mediaUrl; }



            set

            {

                if (m_mediaUrl == value)

                    return;

                m_mediaUrl = value;



                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

            }

        }



        [XmlIgnore]

        public bool CreateSelected { get; set; }



        [XmlIgnore]

        public bool IsSelected

        {

            get { return m_IsSelected; }

            set

            {

                if (m_IsSelected != value)

                {

                    if (PhysActor != null)

                    {

                        PhysActor.Selected = value;

                    }

                    if (ParentID != 0 && ParentGroup != null &&

                        ParentGroup.RootPart != null && ParentGroup.RootPart != this &&

                        ParentGroup.RootPart.IsSelected != value)

                        ParentGroup.RootPart.IsSelected = value;



                    m_IsSelected = value;

                }

            }

        }



        #endregion



        #region Public Properties with only Get



        private UUID _parentUUID = UUID.Zero;

        private float m_friction;

        private float m_density;

        private float m_gravityMultiplier;

        private float m_restitution;



        public SceneObjectGroup ParentGroup

        {

            get { return m_parentGroup; }

        }



        public scriptEvents ScriptEvents

        {

            get { return AggregateScriptEvents; }

        }



        public bool Stopped

        {

            get

            {

                double threshold = 0.02;

                return (Math.Abs(Velocity.X) < threshold &&

                        Math.Abs(Velocity.Y) < threshold &&

                        Math.Abs(Velocity.Z) < threshold &&

                        Math.Abs(AngularVelocity.X) < threshold &&

                        Math.Abs(AngularVelocity.Y) < threshold &&

                        Math.Abs(AngularVelocity.Z) < threshold);

            }

        }



        [ProtoMember(39)]

        public uint Category

        {

            get { return _category; }

            set { _category = value; }

        }



        [ProtoMember(40)]

        public int OwnershipCost

        {

            get { return _ownershipCost; }

            set { _ownershipCost = value; }

        }



        [XmlIgnore]

        public virtual UUID RegionID

        {

            get

            {

                if (ParentGroup != null && ParentGroup.Scene != null)

                    return ParentGroup.Scene.RegionInfo.RegionID;

                else

                    return UUID.Zero;

            }

            set { } // read only

        }



        public Vector3 AbsolutePosition

        {

            get

            {

                if (IsAttachment)

                    return GroupPosition;



                return GetWorldPosition();

            }

            set { }

        }



        public ISceneEntity ParentEntity

        {

            get { return m_parentGroup; }

        }



        [ProtoMember(30)]

        public Quaternion SitTargetOrientation { get; set; }



        [ProtoMember(31)]

        public Vector3 SitTargetPosition { get; set; }



        [ProtoMember(32)]

        public Vector3 OmegaAxis { get; set; }



        [ProtoMember(33)]

        public double OmegaSpinRate { get; set; }



        [ProtoMember(34)]

        public double OmegaGain { get; set; }



        [ProtoMember(35)]

        public uint ParentID

        {

            get { return _parentID; }

            set { _parentID = value; }

        }



        [ProtoMember(36)]

        public int CreationDate { get; set; }



        [ProtoMember(37)]

        public int SalePrice

        {

            get { return _salePrice; }

            set { _salePrice = value; }

        }



        [ProtoMember(38)]

        public byte ObjectSaleType

        {

            get { return _objectSaleType; }

            set { _objectSaleType = value; }

        }



        [ProtoMember(43)]

        public UUID GroupID

        {

            get { return _groupID; }

            set { _groupID = value; }

        }



        [ProtoMember(44)]

        public UUID OwnerID

        {

            get { return _ownerID; }

            set { _ownerID = value; }

        }



        [ProtoMember(45)]

        public UUID LastOwnerID { get; set; }



        [ProtoMember(46)]

        public uint BaseMask

        {

            get { return _baseMask; }

            set { _baseMask = value; }

        }



        [ProtoMember(101)]

        public uint OwnerMask

        {

            get { return _ownerMask; }

            set { _ownerMask = value; }

        }



        [ProtoMember(47)]

        public uint GroupMask

        {

            get { return _groupMask; }

            set { _groupMask = value; }

        }



        [ProtoMember(48)]

        public uint EveryoneMask

        {

            get { return _everyoneMask; }

            set { _everyoneMask = value; }

        }



        [ProtoMember(49)]

        public uint NextOwnerMask

        {

            get { return _nextOwnerMask; }

            set { _nextOwnerMask = value; }

        }



        [ProtoMember(50)]

        public byte PhysicsType { get; set; }



        [ProtoMember(51)]

        public float Density

        {

            get

            {

                if (m_density != 0)

                    return m_density;

                return (m_density = 1000f);

            }

            set { m_density = value; }

        }



        [ProtoMember(52)]

        public float Friction

        {

            get

            {

                if (m_friction != 0)

                    return m_friction;

                return (m_friction = 0.6f);

            }

            set { m_friction = value; }

        }



        [ProtoMember(53)]

        public float Restitution

        {

            get

            {

                if (m_restitution != 0)

                    return m_restitution;

                return (m_restitution = 0.5f);

            }

            set { m_restitution = value; }

        }



        [ProtoMember(54)]

        public float GravityMultiplier

        {

            get

            {

                if (m_gravityMultiplier != 0)

                    return m_gravityMultiplier;

                return (m_gravityMultiplier = 1);

            }

            set { m_gravityMultiplier = value; }

        }



        /// <summary>

        ///     Property flags.  See OpenMetaverse.PrimFlags

        /// </summary>

        /// Example properties are PrimFlags.Phantom and PrimFlags.DieAtEdge

        [ProtoMember(55)]

        public PrimFlags Flags

        {

            get { return _flags; }

            set

            {

//                MainConsole.Instance.DebugFormat("[SOP]: Setting flags for {0} {1} to {2}", UUID, Name, value);

                //if (ParentGroup != null && _flags != value)

                //    ParentGroup.HasGroupChanged = true;

                _flags = value;

            }

        }



        [XmlIgnore]

        public List<UUID> SitTargetAvatar { get; set; }



        [XmlIgnore]

        public UUID ParentUUID

        {

            get

            {

                if (ParentGroup != null)

                    _parentUUID = ParentGroup.UUID;

                return _parentUUID;

            }

            set

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                _parentUUID = value;

            }

        }



        [XmlIgnore]

        [ProtoMember(56)]

        public string SitAnimation

        {

            get { return m_sitAnimation; }

            set

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_sitAnimation = value;

            }

        }



        [ProtoMember(57)]

        public UUID CollisionSound

        {

            get { return m_collisionSound; }

            set

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_collisionSound = value;

                //Why?

                //aggregateScriptEvents();

            }

        }



        [ProtoMember(58)]

        public UUID CollisionSprite

        {

            get { return m_collisionSprite; }

            set

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_collisionSprite = value;

            }

        }



        [ProtoMember(59)]

        public float CollisionSoundVolume

        {

            get { return m_collisionSoundVolume; }

            set

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                m_collisionSoundVolume = value;

            }

        }



        #endregion Public Properties with only Get



        #region Private Methods



        public void FinishedSerializingGenericProperties()

        {

            if ((APIDEnabled || PIDActive) && this.ParentEntity != null) //Make sure to activate it

                this.ParentEntity.Scene.EventManager.OnFrame += UpdateLookAt;

        }



        private void UpdateOOBfromOOBs()

        {

            m_partOOBoffset = Vector3.Zero;



            Vector3 ts = Scale;



            m_partOOBsize.X = ts.X*0.5f;

            m_partOOBsize.Y = ts.Y*0.5f;

            m_partOOBsize.Z = ts.Z*0.5f;



            m_partBSphereRadiusSQ = m_partOOBsize.LengthSquared();

            ValidpartOOB = true;

        }



        // distance from aabb to point ( untested)

        public float AABdistanceToSQ(Vector3 target)

        {

            // distance to group in world

            Vector3 vtmp = target - m_groupPosition; // assume this updated



            if (ParentID != 0)

            {

                // rotate into group reference         

                vtmp *= Quaternion.Inverse(ParentGroup.GroupRotation);

                // move into offseted local ref

                vtmp -= m_offsetPosition;

            }



            // rotate into local reference ( part or grp )

            vtmp *= Quaternion.Inverse(GetRotationOffset());



            // now oob pos

            vtmp -= OOBoffset; // force update



            Vector3 box = OOBsize;



            // hack distance to box: inside == 0

            if (vtmp.X > 0)

            {

                vtmp.X -= box.X;

                if (vtmp.X < 0.0)

                    vtmp.X = 0.0f;

            }

            else

            {

                vtmp.X += box.X;

                if (vtmp.X > 0.0)

                    vtmp.X = 0.0f;

            }



            if (vtmp.Y > 0)

            {

                vtmp.Y -= box.Y;

                if (vtmp.Y < 0.0)

                    vtmp.Y = 0.0f;

            }

            else

            {

                vtmp.Y += box.Y;

                if (vtmp.Y > 0.0)

                    vtmp.Y = 0.0f;

            }



            if (vtmp.Z > 0)

            {

                vtmp.Z -= box.Z;

                if (vtmp.Z < 0.0)

                    vtmp.Z = 0.0f;

            }

            else

            {

                vtmp.Z += box.Z;

                if (vtmp.Z > 0.0)

                    vtmp.Z = 0.0f;

            }



            return vtmp.LengthSquared();

        }



        // distance from aabb to point ( untested)

        // if smaller than simplied distance to group returns that one

        // hack to send root prims first



        public float clampedAABdistanceToSQ(Vector3 target)

        {

            float grpdSQ = 0;

            // distance to group in world

            Vector3 vtmp = target - m_groupPosition; // assume this updated





            if (ParentID != 0)

            {

                // rotate into group reference         

                vtmp *= Quaternion.Inverse(ParentGroup.GroupRotation);

                // compute distance to grp oob

                Vector3 grpv = vtmp - ParentGroup.OOBoffset;

                grpdSQ = grpv.LengthSquared() - ParentGroup.BSphereRadiusSQ;

                if (grpdSQ < 0)

                    grpdSQ = 0;



                // back

                // move into offseted local ref

                vtmp -= m_offsetPosition;

            }



            // rotate into local reference

            vtmp *= Quaternion.Inverse(GetRotationOffset());

            // now oob pos

            vtmp -= OOBoffset; // force update



            Vector3 box = OOBsize;



            // hack distance to box: inside == 0

            if (vtmp.X > 0)

            {

                vtmp.X -= box.X;

                if (vtmp.X < 0.0)

                    vtmp.X = 0.0f;

            }

            else

            {

                vtmp.X += box.X;

                if (vtmp.X > 0.0)

                    vtmp.X = 0.0f;

            }



            if (vtmp.Y > 0)

            {

                vtmp.Y -= box.Y;

                if (vtmp.Y < 0.0)

                    vtmp.Y = 0.0f;

            }

            else

            {

                vtmp.Y += box.Y;

                if (vtmp.Y > 0.0)

                    vtmp.Y = 0.0f;

            }



            if (vtmp.Z > 0)

            {

                vtmp.Z -= box.Z;

                if (vtmp.Z < 0.0)

                    vtmp.Z = 0.0f;

            }

            else

            {

                vtmp.Z += box.Z;

                if (vtmp.Z > 0.0)

                    vtmp.Z = 0.0f;

            }



            float distSQ = vtmp.LengthSquared();



            if (ParentID != 0 && distSQ < grpdSQ)

                return grpdSQ;

            else

                return distSQ;

        }





        private uint ApplyMask(uint val, bool set, uint mask)

        {

            if (set)

            {

                return val |= mask;

            }

            else

            {

                return val &= ~mask;

            }

        }



        private void SendObjectPropertiesToClient(UUID AgentID)

        {

            IScenePresence SP = ParentGroup.Scene.GetScenePresence(AgentID);

            if (SP != null)

                m_parentGroup.GetProperties(SP.ControllingClient);

        }



        #endregion Private Methods



        #region Public Methods



        internal bool m_hasSubscribedToCollisionEvent;



        public void FixOffsetPosition(Vector3 value, bool single)

        {

            bool triggerMoving_End = false;

            if (m_offsetPosition != value)

            {

                triggerMoving_End = true;

                TriggerScriptMovingStartEvent();

            }

            StoreUndoState();

            m_offsetPosition = value;

            if (ParentEntity != null)

                ParentEntity.ScheduleGroupTerseUpdate();

            ValidpartOOB = false;



            if (ParentGroup != null && !ParentGroup.IsDeleted)

            {

                ParentGroup.HasGroupChanged = true;

                PhysicsObject actor = PhysActor;

                if (_parentID != 0 && actor != null && (single || !actor.IsPhysical))

                {

                    actor.Position = GetWorldPosition();

                    actor.Orientation = GetWorldRotation();

                }

            }

            if (triggerMoving_End)

                TriggerScriptMovingEndEvent();

        }





        public bool AddFlag(PrimFlags flag)

        {

            // PrimFlags prevflag = Flags;

            if ((Flags & flag) == 0)

            {

                //MainConsole.Instance.Debug("Adding flag: " + ((PrimFlags) flag).ToString());

                Flags |= flag;



                if (flag == PrimFlags.TemporaryOnRez)

                    ResetExpire();



                object[] o = new object[2];

                o[0] = this;

                o[1] = flag;

                m_parentGroup.Scene.AuroraEventManager.FireGenericEventHandler("ObjectAddedFlag", o);

                return true;

            }

            return false;

            // MainConsole.Instance.Debug("Aprev: " + prevflag.ToString() + " curr: " + Flags.ToString());

        }



        public void AddNewParticleSystem(Primitive.ParticleSystem pSystem)

        {

            ParticleSystem = pSystem.GetBytes();

        }



        public void RemoveParticleSystem()

        {

            ParticleSystem = Utils.EmptyBytes;

        }



        public void AddTextureAnimation(Primitive.TextureAnimation pTexAnim)

        {

            byte[] data = new byte[16];

            int pos = 0;



            // The flags don't like conversion from uint to byte, so we have to do

            // it the crappy way.  See the above function :(



            data[pos] = ConvertScriptUintToByte((uint) pTexAnim.Flags);

            pos++;

            data[pos] = (byte) pTexAnim.Face;

            pos++;

            data[pos] = (byte) pTexAnim.SizeX;

            pos++;

            data[pos] = (byte) pTexAnim.SizeY;

            pos++;



            Utils.FloatToBytes(pTexAnim.Start).CopyTo(data, pos);

            Utils.FloatToBytes(pTexAnim.Length).CopyTo(data, pos + 4);

            Utils.FloatToBytes(pTexAnim.Rate).CopyTo(data, pos + 8);



            TextureAnimation = data;

        }



        public void AdjustSoundGain(double volume)

        {

            if (volume > 1)

                volume = 1;

            if (volume < 0)

                volume = 0;



            m_parentGroup.Scene.ForEachScenePresence(delegate(IScenePresence sp)

                                                         {

                                                             if (!sp.IsChildAgent)

                                                                 sp.ControllingClient.SendAttachedSoundGainChange(UUID,

                                                                                                                  (float

                                                                                                                  )

                                                                                                                  volume);

                                                         });

        }



        /// <summary>

        ///     hook to the physics scene to apply impulse

        ///     This is sent up to the group, which then finds the root prim

        ///     and applies the force on the root prim of the group

        /// </summary>

        /// <param name="impulsei">Vector force</param>

        /// <param name="localGlobalTF">true for the local frame, false for the global frame</param>

        public void ApplyImpulse(Vector3 impulsei, bool localGlobalTF)

        {

            Vector3 impulse = impulsei;



            if (localGlobalTF)

            {

                Quaternion grot = GetWorldRotation();

                Quaternion AXgrot = grot;

                Vector3 AXimpulsei = impulsei;

                Vector3 newimpulse = AXimpulsei*AXgrot;

                impulse = newimpulse;

            }



            if (m_parentGroup != null)

            {

                m_parentGroup.applyImpulse(impulse);

            }

        }



        /// <summary>

        ///     hook to the physics scene to apply angular impulse

        ///     This is sent up to the group, which then finds the root prim

        ///     and applies the force on the root prim of the group

        /// </summary>

        /// <param name="impulsei">Vector force</param>

        /// <param name="localGlobalTF">true for the local frame, false for the global frame</param>

        public void ApplyAngularImpulse(Vector3 impulsei, bool localGlobalTF)

        {

            Vector3 impulse = impulsei;



            if (localGlobalTF)

            {

                Quaternion grot = GetWorldRotation();

                Quaternion AXgrot = grot;

                Vector3 AXimpulsei = impulsei;

                Vector3 newimpulse = AXimpulsei*AXgrot;

                impulse = newimpulse;

            }



            if (m_parentGroup != null)

            {

                m_parentGroup.applyAngularImpulse(impulse);

            }

        }



        /// <summary>

        ///     hook to the physics scene to apply angular impulse

        ///     This is sent up to the group, which then finds the root prim

        ///     and applies the force on the root prim of the group

        /// </summary>

        /// <param name="impulsei">Vector force</param>

        /// <param name="localGlobalTF">true for the local frame, false for the global frame</param>

        public void SetAngularImpulse(Vector3 impulsei, bool localGlobalTF)

        {

            Vector3 impulse = impulsei;



            if (localGlobalTF)

            {

                Quaternion grot = GetWorldRotation();

                Quaternion AXgrot = grot;

                Vector3 AXimpulsei = impulsei;

                Vector3 newimpulse = AXimpulsei*AXgrot;

                impulse = newimpulse;

            }



            if (m_parentGroup != null)

            {

                m_parentGroup.setAngularImpulse(impulse);

            }

        }



        public bool GetDieAtEdge()

        {

            if (m_parentGroup == null)

                return false;

            if (m_parentGroup.IsDeleted)

                return false;



            return m_parentGroup.RootPart.DIE_AT_EDGE;

        }



        public bool GetReturnAtEdge()

        {

            if (m_parentGroup == null)

                return false;

            if (m_parentGroup.IsDeleted)

                return false;



            return m_parentGroup.RootPart.RETURN_AT_EDGE;

        }



        public void SetReturnAtEdge(bool p)

        {

            if (m_parentGroup == null)

                return;

            if (m_parentGroup.IsDeleted)

                return;



            m_parentGroup.RootPart.RETURN_AT_EDGE = p;

        }



        public bool GetBlockGrab(bool wholeObjectBlock)

        {

            if (m_parentGroup == null)

                return false;

            if (m_parentGroup.IsDeleted)

                return false;



            if (wholeObjectBlock)

                return m_parentGroup.RootPart.BlockGrabObject;

            else

                return m_parentGroup.RootPart.BlockGrab;

        }



        public void SetBlockGrab(bool block, bool wholeObjectBlock)

        {

            if (m_parentGroup == null)

                return;

            if (m_parentGroup.IsDeleted)

                return;



            if (wholeObjectBlock)

                m_parentGroup.RootPart.BlockGrabObject = block;

            else

                m_parentGroup.RootPart.BlockGrab = block;

        }



        public void SetStatusSandbox(bool p)

        {

            if (m_parentGroup == null)

                return;

            if (m_parentGroup.IsDeleted)

                return;

            StatusSandboxPos = m_parentGroup.RootPart.AbsolutePosition;

            m_parentGroup.RootPart.StatusSandbox = p;

        }



        public bool GetStatusSandbox()

        {

            if (m_parentGroup == null)

                return false;

            if (m_parentGroup.IsDeleted)

                return false;



            return m_parentGroup.RootPart.StatusSandbox;

        }



        public int GetAxisRotation(int axis)

        {

            //Cannot use ScriptBaseClass constants as no referance to it currently.

            if (axis == 2) //STATUS_ROTATE_X

                return STATUS_ROTATE_X;

            if (axis == 4) //STATUS_ROTATE_Y

                return STATUS_ROTATE_Y;

            if (axis == 8) //STATUS_ROTATE_Z

                return STATUS_ROTATE_Z;



            return 0;

        }



        public uint GetEffectiveObjectFlags()

        {

            // Commenting this section of code out since it doesn't actually do anything, as enums are handled by 

            // value rather than reference

//            PrimFlags f = _flags;

//            if (m_parentGroup == null || m_parentGroup.RootPart == this)

//                f &= ~(PrimFlags.Touch | PrimFlags.Money);



            return (uint) Flags | (uint) LocalFlags;

        }



        public Vector3 GetGeometricCenter()

        {

            if (PhysActor != null)

            {

                return new Vector3(PhysActor.CenterOfMass.X, PhysActor.CenterOfMass.Y, PhysActor.CenterOfMass.Z);

            }

            else

            {

                return new Vector3(0, 0, 0);

            }

        }



        public float GetMass()

        {

            if (ParentGroup.RootPart.UUID == UUID)

            {

                if (PhysActor != null)

                {

                    return PhysActor.Mass;

                }

                else

                {

                    return 0;

                }

            }

            else

            {

                return ParentGroup.RootPart.GetMass();

            }

        }



        public Vector3 GetForce()

        {

            if (PhysActor != null)

                return PhysActor.Force;

            else

                return Vector3.Zero;

        }



        public void GetProperties(IClientAPI client)

        {

            IScenePresence sp;

            if (ParentGroup != null && ParentGroup.Scene != null &&

                (sp = ParentGroup.Scene.GetScenePresence(client.AgentId)) != null)

                sp.SceneViewer.QueuePartsForPropertiesUpdate(new ISceneChildEntity[1] {this});

        }



        /// <summary>

        ///     Method for a prim to get it's world position from the group.

        ///     Remember, the Group Position simply gives the position of the group itself

        /// </summary>

        /// <returns>A Linked Child Prim objects position in world</returns>

        public Vector3 GetWorldPosition()

        {

            return IsRoot ? GroupPosition : GroupPosition + OffsetPosition*ParentGroup.RootPart.GetRotationOffset();

        }



        /// <summary>

        ///     Gets the rotation of this prim offset by the group rotation

        /// </summary>

        /// <returns></returns>

        public Quaternion GetWorldRotation()

        {

            Quaternion newRot = GetRotationOffset();



            if (_parentID != 0)

            {

                Quaternion parentRot = ParentGroup.RootPart.GetRotationOffset();

                newRot = parentRot*newRot;

            }



            return newRot;

        }



        public void MoveToTarget(Vector3 target, float tau)

        {

            if (tau > 0)

            {

                m_parentGroup.moveToTarget(target, tau);

            }

            else

            {

                StopMoveToTarget();

            }

        }



        /// <summary>

        ///     Uses a PID to attempt to clamp the object on the Z axis at the given height over tau seconds.

        /// </summary>

        /// <param name="height">Height to hover.  Height of zero disables hover.</param>

        /// <param name="hoverType">Determines what the height is relative to </param>

        /// <param name="tau">Number of seconds over which to reach target</param>

        public void SetHoverHeight(float height, PIDHoverType hoverType, float tau)

        {

            m_parentGroup.SetHoverHeight(height, hoverType, tau);

        }



        public void PreloadSound(string sound)

        {

            // UUID ownerID = OwnerID;

            UUID objectID = ParentGroup.RootPart.UUID;

            UUID soundID = UUID.Zero;



            if (!UUID.TryParse(sound, out soundID))

            {

                //Trys to fetch sound id from prim's inventory.

                //Prim's inventory doesn't support non script items yet



                lock (TaskInventory)

                {

                    foreach (

                        KeyValuePair<UUID, TaskInventoryItem> item in

                            TaskInventory.Where(item => item.Value.Name == sound))

                    {

                        soundID = item.Value.ItemID;

                        break;

                    }

                }

            }



            m_parentGroup.Scene.ForEachScenePresence(delegate(IScenePresence sp)

                                                         {

                                                             if (sp.IsChildAgent)

                                                                 return;

                                                             if (

                                                                 !(Util.GetDistanceTo(sp.AbsolutePosition,

                                                                                      AbsolutePosition) >= 100))

                                                                 sp.ControllingClient.SendPreLoadSound(objectID,

                                                                                                       objectID, soundID);

                                                         });

        }



        public bool RemFlag(PrimFlags flag)

        {

            // PrimFlags prevflag = Flags;

            if ((Flags & flag) != 0)

            {

                //MainConsole.Instance.Debug("Removing flag: " + ((PrimFlags)flag).ToString());

                Flags &= ~flag;

                object[] o = new object[2];

                o[0] = this;

                o[1] = flag;

                m_parentGroup.Scene.AuroraEventManager.FireGenericEventHandler("ObjectRemovedFlag", o);

                return true;

            }

            return false;

            //MainConsole.Instance.Debug("prev: " + prevflag.ToString() + " curr: " + Flags.ToString());

            //ScheduleFullUpdate();

        }



        public void ResetEntityIDs()

        {

            UUID = UUID.Random();

            //LinkNum = linkNum;

            Inventory.ResetInventoryIDs(false);

            LocalId = ParentGroup.Scene.SceneGraph.AllocateLocalId();



            //Fix the localID now for the physics engine

            if (m_physActor != null)

            {

                m_physActor.LocalID = LocalId;

                PhysActor.UUID = UUID;

            }

            //Fix the rezzed attribute

            Rezzed = DateTime.UtcNow;

        }



        public void RotLookAt(Quaternion target, float strength, float damping)

        {

            if (IsAttachment)

            {

                /*

                    ScenePresence avatar = m_scene.GetScenePresence(rootpart.AttachedAvatar);

                    if (avatar != null)

                    {

                    Rotate the Av?

                    } */

            }

            else

            {

                APIDEnabled = true;

                APIDDamp = damping;

                APIDStrength = strength;

                APIDTarget = target;

            }

        }



        public void startLookAt(Quaternion rot, float damp, float strength)

        {

            APIDEnabled = true;

            APIDDamp = damp;

            APIDStrength = strength;

            APIDTarget = rot;

            APIDIterations = 1 + (int) (Math.PI*APIDStrength);

        }



        /// <summary>

        ///     Schedule a terse update for this prim.  Terse updates only send position,

        ///     rotation, velocity, and rotational velocity information.

        /// </summary>

        public void ScheduleTerseUpdate()

        {

            ScheduleUpdate(PrimUpdateFlags.TerseUpdate);

        }



        /// <summary>

        ///     Tell all avatars in the Scene about the new update

        /// </summary>

        /// <param name="UpdateFlags"></param>

        public void ScheduleUpdate(PrimUpdateFlags UpdateFlags)

        {

            if (m_parentGroup != null && m_parentGroup.Scene != null)

                m_parentGroup.Scene.ForEachScenePresence(avatar => avatar.AddUpdateToAvatar(this, UpdateFlags));

        }



        public void ScriptSetPhantomStatus(bool Phantom)

        {

            if (m_parentGroup != null)

            {

                m_parentGroup.ScriptSetPhantomStatus(Phantom);

            }

        }



        public void ScriptSetTemporaryStatus(bool Temporary)

        {

            if (m_parentGroup != null)

            {

                m_parentGroup.ScriptSetTemporaryStatus(Temporary);

            }

        }



        public void ScriptSetVolumeDetect(bool SetVD)

        {

            if (m_parentGroup != null)

            {

                m_parentGroup.ScriptSetVolumeDetect(SetVD);

            }

        }



        /// <summary>

        ///     Trigger or play an attached sound in this part's inventory.

        /// </summary>

        /// <param name="sound"></param>

        /// <param name="volume"></param>

        /// <param name="triggered"></param>

        /// <param name="flags"></param>

        /// <param name="radius"></param>

        /// <param name="useMaster"></param>

        /// <param name="isMaster"></param>

        public void SendSound(string sound, double volume, bool triggered, byte flags, float radius, bool useMaster,

                              bool isMaster)

        {

            if (volume > 1)

                volume = 1;

            if (volume < 0)

                volume = 0;



            UUID ownerID = _ownerID;

            UUID objectID = ParentGroup.RootPart.UUID;

            UUID parentID = GetRootPartUUID();

            UUID soundID = UUID.Zero;

            Vector3 position = AbsolutePosition; // region local

            ulong regionHandle = m_parentGroup.Scene.RegionInfo.RegionHandle;



            if (!UUID.TryParse(sound, out soundID))

            {

                // search sound file from inventory

                lock (TaskInventory)

                {

                    foreach (

                        KeyValuePair<UUID, TaskInventoryItem> item in

                            TaskInventory.Where(

                                item => item.Value.Name == sound && item.Value.Type == (int) AssetType.Sound))

                    {

                        soundID = item.Value.ItemID;

                        break;

                    }

                }

            }



            if (soundID == UUID.Zero)

                return;



            ISoundModule soundModule = m_parentGroup.Scene.RequestModuleInterface<ISoundModule>();

            if (soundModule != null)

            {

                if (useMaster)

                {

                    if (isMaster)

                    {

                        if (triggered)

                            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position,

                                                     regionHandle, radius);

                        else

                            soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);

                        ParentGroup.PlaySoundMasterPrim = this;

                        ownerID = _ownerID;

                        objectID = ParentGroup.RootPart.UUID;

                        parentID = GetRootPartUUID();

                        position = AbsolutePosition; // region local

                        regionHandle = ParentGroup.Scene.RegionInfo.RegionHandle;

                        if (triggered)

                            soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position,

                                                     regionHandle, radius);

                        else

                            soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);

                        foreach (SceneObjectPart prim in ParentGroup.PlaySoundSlavePrims)

                        {

                            ownerID = prim._ownerID;

                            objectID = prim.ParentGroup.RootPart.UUID;

                            parentID = prim.GetRootPartUUID();

                            position = prim.AbsolutePosition; // region local

                            regionHandle = prim.ParentGroup.Scene.RegionInfo.RegionHandle;

                            if (triggered)

                                soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position,

                                                         regionHandle, radius);

                            else

                                soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags,

                                                              radius);

                        }

                        ParentGroup.PlaySoundSlavePrims.Clear();

                        ParentGroup.PlaySoundMasterPrim = null;

                    }

                    else

                    {

                        ParentGroup.PlaySoundSlavePrims.Add(this);

                    }

                }

                else

                {

                    if (triggered)

                        soundModule.TriggerSound(soundID, ownerID, objectID, parentID, volume, position, regionHandle,

                                                 radius);

                    else

                        soundModule.PlayAttachedSound(soundID, ownerID, objectID, volume, position, flags, radius);

                }

            }

        }



        public void SetAvatarOnSitTarget(UUID avatarID)

        {

            lock (SitTargetAvatar)

            {

                if (!SitTargetAvatar.Contains(avatarID))

                    SitTargetAvatar.Add(avatarID);

            }

            TriggerScriptChangedEvent(Changed.LINK);

        }



        public void RemoveAvatarOnSitTarget(UUID avatarID)

        {

            lock (SitTargetAvatar)

            {

                if (SitTargetAvatar.Contains(avatarID))

                    SitTargetAvatar.Remove(avatarID);

            }

            TriggerScriptChangedEvent(Changed.LINK);

        }



        public void SetAxisRotation(int axis, int rotate)

        {

            if (m_parentGroup != null)

            {

                m_parentGroup.SetAxisRotation(axis, rotate);

            }

            //Cannot use ScriptBaseClass constants as no referance to it currently.

            if ((axis & 2) == 2) //STATUS_ROTATE_X

                STATUS_ROTATE_X = rotate;

            if ((axis & 4) == 4) //STATUS_ROTATE_Y

                STATUS_ROTATE_Y = rotate;

            if ((axis & 8) == 8) //STATUS_ROTATE_Z

                STATUS_ROTATE_Z = rotate;

        }



        public void SetBuoyancy(float fvalue)

        {

            if (PhysActor != null)

            {

                PhysActor.Buoyancy = fvalue;

            }

        }



        public void SetDieAtEdge(bool p)

        {

            if (m_parentGroup == null)

                return;

            if (m_parentGroup.IsDeleted)

                return;



            m_parentGroup.RootPart.DIE_AT_EDGE = p;

        }



        public void SetFloatOnWater(int floatYN)

        {

            if (PhysActor != null)

            {

                PhysActor.FloatOnWater = floatYN == 1;

            }

        }



        public void SetForce(Vector3 force)

        {

            if (PhysActor != null)

            {

                PhysActor.Force = force;

            }

        }



        public void SetVehicleFlags(int param, bool remove)

        {

            if (remove)

                VehicleFlags.Remove(param);

            else

                VehicleFlags.Add(param);



            if (PhysActor != null)

                PhysActor.VehicleFlags(param, remove);

        }



        public void SetVehicleType(int type)

        {

            VehicleType = type;

            if (PhysActor != null)

                PhysActor.VehicleType = type;

        }



        public void SetVehicleFloatParam(int param, float value)

        {

            VehicleParameters[param.ToString()] = value;

            if (PhysActor != null)

                PhysActor.VehicleFloatParam(param, value);

        }



        public void SetVehicleVectorParam(int param, Vector3 value)

        {

            VehicleParameters[param.ToString()] = value;

            if (PhysActor != null)

                PhysActor.VehicleVectorParam(param, value);

        }



        public void SetVehicleRotationParam(int param, Quaternion value)

        {

            VehicleParameters[param.ToString()] = value;

            if (PhysActor != null)

                PhysActor.VehicleRotationParam(param, value);

        }



        /// <summary>

        ///     Set the color of prim faces

        /// </summary>

        /// <param name="color"></param>

        /// <param name="face"></param>

        public void SetFaceColor(Vector3 color, int face)

        {

            Primitive.TextureEntry tex = Shape.Textures;

            Color4 texcolor;

            if (face >= 0 && face < GetNumberOfSides())

            {

                texcolor = tex.CreateFace((uint) face).RGBA;

                texcolor.R = Util.Clip(color.X, 0.0f, 1.0f);

                texcolor.G = Util.Clip(color.Y, 0.0f, 1.0f);

                texcolor.B = Util.Clip(color.Z, 0.0f, 1.0f);

                if (!(tex.FaceTextures[face].RGBA.R == texcolor.R &&

                      tex.FaceTextures[face].RGBA.G == texcolor.G &&

                      tex.FaceTextures[face].RGBA.B == texcolor.B))

                {

                    tex.FaceTextures[face].RGBA = texcolor;

                    UpdateTexture(tex, true);

                }

            }

            else if (face == ALL_SIDES)

            {

                bool changed = false;

                for (uint i = 0; i < GetNumberOfSides(); i++)

                {

                    if (tex.FaceTextures[i] != null)

                    {

                        texcolor = tex.FaceTextures[i].RGBA;

                        texcolor.R = Util.Clip(color.X, 0.0f, 1.0f);

                        texcolor.G = Util.Clip(color.Y, 0.0f, 1.0f);

                        texcolor.B = Util.Clip(color.Z, 0.0f, 1.0f);

                        if (!(tex.FaceTextures[i].RGBA.R == texcolor.R &&

                              tex.FaceTextures[i].RGBA.G == texcolor.G &&

                              tex.FaceTextures[i].RGBA.B == texcolor.B))

                            changed = true;

                        tex.FaceTextures[i].RGBA = texcolor;

                    }

                    texcolor = tex.DefaultTexture.RGBA;

                    texcolor.R = Util.Clip(color.X, 0.0f, 1.0f);

                    texcolor.G = Util.Clip(color.Y, 0.0f, 1.0f);

                    texcolor.B = Util.Clip(color.Z, 0.0f, 1.0f);

                    if (!(tex.DefaultTexture.RGBA.R == texcolor.R &&

                          tex.DefaultTexture.RGBA.G == texcolor.G &&

                          tex.DefaultTexture.RGBA.B == texcolor.B))

                        changed = true;

                    tex.DefaultTexture.RGBA = texcolor;

                }

                if (changed)

                    UpdateTexture(tex, true);

            }

        }



        /// <summary>

        ///     Get the number of sides that this part has.

        /// </summary>

        /// <returns></returns>

        public int GetNumberOfSides()

        {

            int ret = 0;

            bool hasCut;

            bool hasHollow;

            bool hasDimple;

            bool hasProfileCut;



            PrimType primType = GetPrimType();

            HasCutHollowDimpleProfileCut(primType, Shape, out hasCut, out hasHollow, out hasDimple, out hasProfileCut);



            switch (primType)

            {

                case PrimType.BOX:

                    ret = 6;

                    if (hasCut) ret += 2;

                    if (hasHollow) ret += 1;

                    break;

                case PrimType.CYLINDER:

                    ret = 3;

                    if (hasCut) ret += 2;

                    if (hasHollow) ret += 1;

                    break;

                case PrimType.PRISM:

                    ret = 5;

                    if (hasCut) ret += 2;

                    if (hasHollow) ret += 1;

                    break;

                case PrimType.SPHERE:

                    ret = 1;

                    if (hasCut) ret += 2;

                    if (hasDimple) ret += 2;

                    if (hasHollow) ret += 1;

                    break;

                case PrimType.TORUS:

                    ret = 1;

                    if (hasCut) ret += 2;

                    if (hasProfileCut) ret += 2;

                    if (hasHollow) ret += 1;

                    break;

                case PrimType.TUBE:

                    ret = 4;

                    if (hasCut) ret += 2;

                    if (hasProfileCut) ret += 2;

                    if (hasHollow) ret += 1;

                    break;

                case PrimType.RING:

                    ret = 3;

                    if (hasCut) ret += 2;

                    if (hasProfileCut) ret += 2;

                    if (hasHollow) ret += 1;

                    break;

                case PrimType.SCULPT:

                    // Special mesh handling

                    if (this.Shape.SculptType == 5)

                    {

                        ret = 8; // its a mesh then max 8 faces

                    }

                    else

                    {

                        ret = 1; // its a sculpt then max 1 faces

                    }

                    break;

            }

            return ret;

        }



        /// <summary>

        ///     Tell us what type this prim is

        /// </summary>

        /// <returns></returns>

        public PrimType GetPrimType()

        {

            if (Shape.SculptEntry)

                return PrimType.SCULPT;

            if ((Shape.ProfileCurve & 0x07) == (byte) ProfileShape.Square)

            {

                if (Shape.PathCurve == (byte) Extrusion.Straight)

                    return PrimType.BOX;

                else if (Shape.PathCurve == (byte) Extrusion.Curve1)

                    return PrimType.TUBE;

            }

            else if ((Shape.ProfileCurve & 0x07) == (byte) ProfileShape.Circle)

            {

                if (Shape.PathCurve == (byte) Extrusion.Straight)

                    return PrimType.CYLINDER;

                    // ProfileCurve seems to combine hole shape and profile curve so we need to only compare against the lower 3 bits

                else if (Shape.PathCurve == (byte) Extrusion.Curve1)

                    return PrimType.TORUS;

            }

            else if ((Shape.ProfileCurve & 0x07) == (byte) ProfileShape.HalfCircle)

            {

                if (Shape.PathCurve == (byte) Extrusion.Curve1 || Shape.PathCurve == (byte) Extrusion.Curve2)

                    return PrimType.SPHERE;

            }

            else if ((Shape.ProfileCurve & 0x07) == (byte) ProfileShape.EquilateralTriangle)

            {

                if (Shape.PathCurve == (byte) Extrusion.Straight)

                    return PrimType.PRISM;

                else if (Shape.PathCurve == (byte) Extrusion.Curve1)

                    return PrimType.RING;

            }



            return PrimType.BOX;

        }



        /// <summary>

        /// </summary>

        public void SetParent(ISceneEntity parent)

        {

            m_parentGroup = (SceneObjectGroup) parent;

        }



        // Use this for attachments!  LocalID should be avatar's localid

        public void SetParentLocalId(uint localID)

        {

            _parentID = localID;

        }



        /// <summary>

        ///     Set the events that this part will pass on to listeners.

        /// </summary>

        /// <param name="scriptid"></param>

        /// <param name="events"></param>

        public void SetScriptEvents(UUID scriptid, long events)

        {

            // scriptEvents oldparts;

            lock (m_scriptEvents)

            {

                if (m_scriptEvents.ContainsKey(scriptid))

                {

                    // oldparts = m_scriptEvents[scriptid];



                    // remove values from aggregated script events

                    //if (m_scriptEvents[scriptid] == (scriptEvents) events)

                    //    return;

                    m_scriptEvents[scriptid] = (scriptEvents) events;

                }

                else

                {

                    m_scriptEvents.Add(scriptid, (scriptEvents) events);

                }

            }

            aggregateScriptEvents();

        }



        public void StopLookAt()

        {

            m_parentGroup.RootPart.stopLookAt();

            m_parentGroup.ScheduleGroupTerseUpdate();

        }



        /// <summary>

        ///     Set the text displayed for this part.

        /// </summary>

        /// <param name="text"></param>

        /// <param name="color"></param>

        /// <param name="alpha"></param>

        public void SetText(string text, Vector3 color, double alpha)

        {

            //No triggering Changed_Color, so not using Color

            //Color = ...

            UpdateColor(Color.FromArgb((int) (alpha*0xff),

                                       (int) (color.X*0xff),

                                       (int) (color.Y*0xff),

                                       (int) (color.Z*0xff)), false);

            Text = text;



            ScheduleUpdate(PrimUpdateFlags.Text);

        }



        public void StopMoveToTarget()

        {

            m_parentGroup.stopMoveToTarget();



            m_parentGroup.ScheduleGroupTerseUpdate();

            //m_parentGroup.ScheduleGroupForFullUpdate();

        }



        public void StoreUndoState()

        {

            if (!Undoing)

            {

                if (!IgnoreUndoUpdate)

                {

                    IBackupModule backup = null;

                    if (ParentGroup != null &&

                        ParentGroup.Scene != null)

                        backup = ParentGroup.Scene.RequestModuleInterface<IBackupModule>();



                    if (m_parentGroup != null &&

                        ParentGroup.Scene != null &&

                        (backup == null || (backup != null && !backup.LoadingPrims)))

                    {

                        lock (m_undo)

                        {

                            if (m_undo.Count > 0)

                            {

                                UndoState last = m_undo.Peek();

                                if (last != null)

                                {

                                    if (last.Compare(this))

                                        return;

                                }

                            }



                            UndoState nUndo = new UndoState(this);

                            m_undo.Push(nUndo);

                        }

                    }

                }

            }

        }



        public EntityIntersection TestIntersectionOBB(Ray iray, Quaternion parentrot, bool frontFacesOnly,

                                                      bool faceCenters)

        {

            // In this case we're using a rectangular prism, which has 6 faces and therefore 6 planes

            // This breaks down into the ray---> plane equation.

            // TODO: Change to take shape into account

            Vector3[] vertexes = new Vector3[8];



            // float[] distance = new float[6];

            Vector3[] FaceA = new Vector3[6]; // vertex A for Facei

            Vector3[] FaceB = new Vector3[6]; // vertex B for Facei

            Vector3[] FaceC = new Vector3[6]; // vertex C for Facei

            Vector3[] FaceD = new Vector3[6]; // vertex D for Facei



            Vector3[] normals = new Vector3[6]; // Normal for Facei

            Vector3[] AAfacenormals = new Vector3[6]; // Axis Aligned face normals



            AAfacenormals[0] = new Vector3(1, 0, 0);

            AAfacenormals[1] = new Vector3(0, 1, 0);

            AAfacenormals[2] = new Vector3(-1, 0, 0);

            AAfacenormals[3] = new Vector3(0, -1, 0);

            AAfacenormals[4] = new Vector3(0, 0, 1);

            AAfacenormals[5] = new Vector3(0, 0, -1);



            Vector3 AmBa = new Vector3(0, 0, 0); // Vertex A - Vertex B

            Vector3 AmBb = new Vector3(0, 0, 0); // Vertex B - Vertex C

            Vector3 cross = new Vector3();



            Vector3 pos = GetWorldPosition();

            Quaternion rot = GetWorldRotation();



            // Variables prefixed with AX are Axiom.Math copies of the LL variety.



            Quaternion AXrot = rot;

            AXrot.Normalize();



            Vector3 AXpos = pos;



            // tScale is the offset to derive the vertex based on the scale.

            // it's different for each vertex because we've got to rotate it

            // to get the world position of the vertex to produce the Oriented Bounding Box



            Vector3 tScale = Vector3.Zero;



            Vector3 AXscale = new Vector3(m_shape.Scale.X*0.5f, m_shape.Scale.Y*0.5f, m_shape.Scale.Z*0.5f);



            //Vector3 pScale = (AXscale) - (AXrot.Inverse() * (AXscale));

            //Vector3 nScale = (AXscale * -1) - (AXrot.Inverse() * (AXscale * -1));



            // rScale is the rotated offset to find a vertex based on the scale and the world rotation.

            Vector3 rScale = new Vector3();



            // Get Vertexes for Faces Stick them into ABCD for each Face

            // Form: Face<vertex>[face] that corresponds to the below diagram



            #region ABCD Face Vertex Map Comment Diagram



            //                   A _________ B

            //                    |         |

            //                    |  4 top  |

            //                    |_________|

            //                   C           D



            //                   A _________ B

            //                    |  Back   |

            //                    |    3    |

            //                    |_________|

            //                   C           D



            //   A _________ B                     B _________ A

            //    |  Left   |                       |  Right  |

            //    |    0    |                       |    2    |

            //    |_________|                       |_________|

            //   C           D                     D           C



            //                   A _________ B

            //                    |  Front  |

            //                    |    1    |

            //                    |_________|

            //                   C           D



            //                   C _________ D

            //                    |         |

            //                    |  5 bot  |

            //                    |_________|

            //                   A           B



            #endregion



            #region Plane Decomposition of Oriented Bounding Box



            tScale = new Vector3(AXscale.X, -AXscale.Y, AXscale.Z);

            rScale = tScale*AXrot;

            vertexes[0] = (new Vector3((pos.X + rScale.X), (pos.Y + rScale.Y), (pos.Z + rScale.Z)));

            // vertexes[0].X = pos.X + vertexes[0].X;

            //vertexes[0].Y = pos.Y + vertexes[0].Y;

            //vertexes[0].Z = pos.Z + vertexes[0].Z;



            FaceA[0] = vertexes[0];

            FaceB[3] = vertexes[0];

            FaceA[4] = vertexes[0];



            tScale = AXscale;

            rScale = tScale*AXrot;

            vertexes[1] = (new Vector3((pos.X + rScale.X), (pos.Y + rScale.Y), (pos.Z + rScale.Z)));



            // vertexes[1].X = pos.X + vertexes[1].X;

            // vertexes[1].Y = pos.Y + vertexes[1].Y;

            //vertexes[1].Z = pos.Z + vertexes[1].Z;



            FaceB[0] = vertexes[1];

            FaceA[1] = vertexes[1];

            FaceC[4] = vertexes[1];



            tScale = new Vector3(AXscale.X, -AXscale.Y, -AXscale.Z);

            rScale = tScale*AXrot;



            vertexes[2] = (new Vector3((pos.X + rScale.X), (pos.Y + rScale.Y), (pos.Z + rScale.Z)));



            //vertexes[2].X = pos.X + vertexes[2].X;

            //vertexes[2].Y = pos.Y + vertexes[2].Y;

            //vertexes[2].Z = pos.Z + vertexes[2].Z;



            FaceC[0] = vertexes[2];

            FaceD[3] = vertexes[2];

            FaceC[5] = vertexes[2];



            tScale = new Vector3(AXscale.X, AXscale.Y, -AXscale.Z);

            rScale = tScale*AXrot;

            vertexes[3] = (new Vector3((pos.X + rScale.X), (pos.Y + rScale.Y), (pos.Z + rScale.Z)));



            //vertexes[3].X = pos.X + vertexes[3].X;

            // vertexes[3].Y = pos.Y + vertexes[3].Y;

            // vertexes[3].Z = pos.Z + vertexes[3].Z;



            FaceD[0] = vertexes[3];

            FaceC[1] = vertexes[3];

            FaceA[5] = vertexes[3];



            tScale = new Vector3(-AXscale.X, AXscale.Y, AXscale.Z);

            rScale = tScale*AXrot;

            vertexes[4] = (new Vector3((pos.X + rScale.X), (pos.Y + rScale.Y), (pos.Z + rScale.Z)));



            // vertexes[4].X = pos.X + vertexes[4].X;

            // vertexes[4].Y = pos.Y + vertexes[4].Y;

            // vertexes[4].Z = pos.Z + vertexes[4].Z;



            FaceB[1] = vertexes[4];

            FaceA[2] = vertexes[4];

            FaceD[4] = vertexes[4];



            tScale = new Vector3(-AXscale.X, AXscale.Y, -AXscale.Z);

            rScale = tScale*AXrot;

            vertexes[5] = (new Vector3((pos.X + rScale.X), (pos.Y + rScale.Y), (pos.Z + rScale.Z)));



            // vertexes[5].X = pos.X + vertexes[5].X;

            // vertexes[5].Y = pos.Y + vertexes[5].Y;

            // vertexes[5].Z = pos.Z + vertexes[5].Z;



            FaceD[1] = vertexes[5];

            FaceC[2] = vertexes[5];

            FaceB[5] = vertexes[5];



            tScale = new Vector3(-AXscale.X, -AXscale.Y, AXscale.Z);

            rScale = tScale*AXrot;

            vertexes[6] = (new Vector3((pos.X + rScale.X), (pos.Y + rScale.Y), (pos.Z + rScale.Z)));



            // vertexes[6].X = pos.X + vertexes[6].X;

            // vertexes[6].Y = pos.Y + vertexes[6].Y;

            // vertexes[6].Z = pos.Z + vertexes[6].Z;



            FaceB[2] = vertexes[6];

            FaceA[3] = vertexes[6];

            FaceB[4] = vertexes[6];



            tScale = new Vector3(-AXscale.X, -AXscale.Y, -AXscale.Z);

            rScale = tScale*AXrot;

            vertexes[7] = (new Vector3((pos.X + rScale.X), (pos.Y + rScale.Y), (pos.Z + rScale.Z)));



            // vertexes[7].X = pos.X + vertexes[7].X;

            // vertexes[7].Y = pos.Y + vertexes[7].Y;

            // vertexes[7].Z = pos.Z + vertexes[7].Z;



            FaceD[2] = vertexes[7];

            FaceC[3] = vertexes[7];

            FaceD[5] = vertexes[7];



            #endregion



            // Get our plane normals

            for (int i = 0; i < 6; i++)

            {

                //MainConsole.Instance.Info("[FACECALCULATION]: FaceA[" + i + "]=" + FaceA[i] + " FaceB[" + i + "]=" + FaceB[i] + " FaceC[" + i + "]=" + FaceC[i] + " FaceD[" + i + "]=" + FaceD[i]);



                // Our Plane direction

                AmBa = FaceA[i] - FaceB[i];

                AmBb = FaceB[i] - FaceC[i];



                cross = Vector3.Cross(AmBb, AmBa);



                // normalize the cross product to get the normal.

                normals[i] = cross/cross.Length();



                //MainConsole.Instance.Info("[NORMALS]: normals[ " + i + "]" + normals[i].ToString());

                //distance[i] = (normals[i].X * AmBa.X + normals[i].Y * AmBa.Y + normals[i].Z * AmBa.Z) * -1;

            }



            EntityIntersection result = new EntityIntersection {distance = 1024};



            float c = 0;

            float a = 0;

            float d = 0;

            Vector3 q = new Vector3();



            #region OBB Version 2 Experiment



            //float fmin = 999999;

            //float fmax = -999999;

            //float s = 0;



            //for (int i=0;i<6;i++)

            //{

            //s = iray.Direction.Dot(normals[i]);

            //d = normals[i].Dot(FaceB[i]);



            //if (s == 0)

            //{

            //if (iray.Origin.Dot(normals[i]) > d)

            //{

            //return result;

            //}

            // else

            //{

            //continue;

            //}

            //}

            //a = (d - iray.Origin.Dot(normals[i])) / s;

            //if (iray.Direction.Dot(normals[i]) < 0)

            //{

            //if (a > fmax)

            //{

            //if (a > fmin)

            //{

            //return result;

            //}

            //fmax = a;

            //}



            //}

            //else

            //{

            //if (a < fmin)

            //{

            //if (a < 0 || a < fmax)

            //{

            //return result;

            //}

            //fmin = a;

            //}

            //}

            //}

            //if (fmax > 0)

            //    a= fmax;

            //else

            //     a=fmin;



            //q = iray.Origin + a * iray.Direction;



            #endregion



            // Loop over faces (6 of them)

            for (int i = 0; i < 6; i++)

            {

                AmBa = FaceA[i] - FaceB[i];

                AmBb = FaceB[i] - FaceC[i];

                d = Vector3.Dot(normals[i], FaceB[i]);



                //if (faceCenters)

                //{

                //    c = normals[i].Dot(normals[i]);

                //}

                //else

                //{

                c = Vector3.Dot(iray.Direction, normals[i]);

                //}

                if (c == 0)

                    continue;



                a = (d - Vector3.Dot(iray.Origin, normals[i]))/c;



                if (a < 0)

                    continue;



                // If the normal is pointing outside the object

                if (Vector3.Dot(iray.Direction, normals[i]) < 0 || !frontFacesOnly)

                {

                    //if (faceCenters)

                    //{   //(FaceA[i] + FaceB[i] + FaceC[1] + FaceD[i]) / 4f;

                    //    q =  iray.Origin + a * normals[i];

                    //}

                    //else

                    //{

                    q = iray.Origin + iray.Direction*a;

                    //}



                    float distance2 = (float) GetDistanceTo(q, AXpos);

                    // Is this the closest hit to the object's origin?

                    //if (faceCenters)

                    //{

                    //    distance2 = (float)GetDistanceTo(q, iray.Origin);

                    //}



                    if (distance2 < result.distance)

                    {

                        result.distance = distance2;

                        result.HitTF = true;

                        result.ipoint = q;

                        //MainConsole.Instance.Info("[FACE]:" + i.ToString());

                        //MainConsole.Instance.Info("[POINT]: " + q.ToString());

                        //MainConsole.Instance.Info("[DIST]: " + distance2.ToString());

                        if (faceCenters)

                        {

                            result.normal = AAfacenormals[i]*AXrot;



                            Vector3 scaleComponent = AAfacenormals[i];

                            float ScaleOffset = 0.5f;

                            if (scaleComponent.X != 0) ScaleOffset = AXscale.X;

                            if (scaleComponent.Y != 0) ScaleOffset = AXscale.Y;

                            if (scaleComponent.Z != 0) ScaleOffset = AXscale.Z;

                            ScaleOffset = Math.Abs(ScaleOffset);

                            Vector3 offset = result.normal*ScaleOffset;

                            result.ipoint = AXpos + offset;



                            //pos = (intersectionpoint + offset);

                        }

                        else

                        {

                            result.normal = normals[i];

                        }

                        result.AAfaceNormal = AAfacenormals[i];

                    }

                }

            }

            return result;

        }



        public void TriggerScriptChangedEvent(Changed val)

        {

            if (m_parentGroup != null && m_parentGroup.Scene != null)

                m_parentGroup.Scene.EventManager.TriggerOnScriptChangedEvent(this, (uint) val);

        }



        public void TrimPermissions()

        {

            _baseMask &= (uint) PermissionMask.All;

            _ownerMask &= (uint) PermissionMask.All;

            _groupMask &= (uint) PermissionMask.All;

            _everyoneMask &= (uint) PermissionMask.All;

            _nextOwnerMask &= (uint) PermissionMask.All;

        }



        public void Undo()

        {

            lock (m_undo)

            {

                if (m_undo.Count > 0)

                {

                    m_redo.Push(new UndoState(this));

                    UndoState goback = m_undo.Pop();

                    if (goback != null)

                    {

                        goback.PlaybackState(this);

                    }

                }

            }

        }



        public void Redo()

        {

            lock (m_redo)

            {

                if (m_redo.Count > 0)

                {

                    UndoState nUndo = new UndoState(this);

                    m_undo.Push(nUndo);



                    UndoState gofwd = m_redo.Pop();

                    if (gofwd != null)

                        gofwd.PlayfwdState(this);

                }

            }

        }



        /// <summary>

        /// </summary>

        /// <param name="pos"></param>

        public void UpdateOffSet(Vector3 pos)

        {

            if ((pos.X != OffsetPosition.X) ||

                (pos.Y != OffsetPosition.Y) ||

                (pos.Z != OffsetPosition.Z))

            {

                Vector3 newPos = new Vector3(pos.X, pos.Y, pos.Z);



                if (ParentGroup.RootPart.GetStatusSandbox())

                {

                    if (Util.GetDistanceTo(ParentGroup.RootPart.StatusSandboxPos, newPos) > 10)

                    {

                        ParentGroup.ScriptSetPhysicsStatus(false);

                        newPos = OffsetPosition;

                        IChatModule chatModule = ParentGroup.Scene.RequestModuleInterface<IChatModule>();

                        if (chatModule != null)

                            chatModule.SimChat("Hit Sandbox Limit", ChatTypeEnum.DebugChannel, 0x7FFFFFFF,

                                               ParentGroup.RootPart.AbsolutePosition, Name, UUID, false,

                                               ParentGroup.Scene);

                    }

                }

                ValidpartOOB = false;

                FixOffsetPosition(newPos, true);

                ScheduleTerseUpdate();

            }

        }



        public bool UpdatePrimFlags(bool UsePhysics, bool IsTemporary, bool IsPhantom, bool IsVD,

                                    ObjectFlagUpdatePacket.ExtraPhysicsBlock[] blocks)

        {

            bool wasUsingPhysics = ((Flags & PrimFlags.Physics) != 0);

            bool wasTemporary = ((Flags & PrimFlags.TemporaryOnRez) != 0);

            bool wasPhantom = ((Flags & PrimFlags.Phantom) != 0);

            bool wasVD = VolumeDetectActive;



            bool needsPhysicalRebuild = false;



            if (blocks != null && blocks.Length != 0)

            {

                ObjectFlagUpdatePacket.ExtraPhysicsBlock block = blocks[0];

                //These 2 are static properties, and do require rebuilding the entire physical representation

                if (PhysicsType != block.PhysicsShapeType)

                {

                    PhysicsType = block.PhysicsShapeType;

                    needsPhysicalRebuild = true; //Gotta rebuild now

                }

                if (Density != block.Density)

                {

                    Density = block.Density;

                    needsPhysicalRebuild = true; //Gotta rebuild now

                }

                //These 3 are dynamic properties, and don't require rebuilding the physics representation

                if (Friction != block.Friction)

                    Friction = block.Friction;

                if (Restitution != block.Restitution)

                    Restitution = block.Restitution;

                if (GravityMultiplier != block.GravityMultiplier)

                    GravityMultiplier = block.GravityMultiplier;

            }



            if ((UsePhysics == wasUsingPhysics) && (wasTemporary == IsTemporary) && (wasPhantom == IsPhantom) &&

                (IsVD == wasVD))

                return needsPhysicalRebuild;



            // Special cases for VD. VD can only be called from a script 

            // and can't be combined with changes to other states. So we can rely

            // that...

            // ... if VD is changed, all others are not.

            // ... if one of the others is changed, VD is not.

            if (IsVD) // VD is active, special logic applies

            {

                // State machine logic for VolumeDetect

                // More logic below

                bool phanReset = (IsPhantom != wasPhantom) && !IsPhantom;



                if (phanReset) // Phantom changes from on to off switch VD off too

                {

                    IsVD = false; // Switch it of for the course of this routine

                    VolumeDetectActive = false; // and also permanently

                    if (PhysActor != null)

                        PhysActor.VolumeDetect = false; // Let physics know about it too

                }

                else

                {

                    IsPhantom = false;

                    // If volumedetect is active we don't want phantom to be applied.

                    // If this is a new call to VD out of the state "phantom"

                    // this will also cause the prim to be visible to physics

                }

            }



            if (UsePhysics)

                AddFlag(PrimFlags.Physics);

            else

                RemFlag(PrimFlags.Physics);

            if (PhysActor != null)

            {

                PhysActor.IsPhysical = UsePhysics;

                if (!UsePhysics)

                {

                    //Clear out old data

                    Velocity = Vector3.Zero;

                    Acceleration = Vector3.Zero;

                    AngularVelocity = Vector3.Zero;

                    PhysActor.RotationalVelocity = Vector3.Zero;

                    PhysActor.ClearVelocity();

                    GenerateRotationalVelocityFromOmega();

                    if (wasUsingPhysics)

                        ScheduleTerseUpdate(); //Force it out of the client too

                }

            }





            if (IsPhantom || IsAttachment || (Shape.PathCurve == (byte) Extrusion.Flexible))

                // note: this may have been changed above in the case of joints

            {

                AddFlag(PrimFlags.Phantom);

                needsPhysicalRebuild = true; //Gotta rebuild now

            }

            else // Not phantom

            {

                if (wasPhantom)

                {

                    RemFlag(PrimFlags.Phantom);

                    needsPhysicalRebuild = true; //Gotta rebuild now

                }

            }



            if (IsVD && IsVD != VolumeDetectActive)

            {

                // If the above logic worked (this is urgent candidate to unit tests!)

                // we now have a physicsactor.

                // Defensive programming calls for a check here.

                // Better would be throwing an exception that could be catched by a unit test as the internal 

                // logic should make sure, this Physactor is always here.



                //FALSE, you can go from a phantom prim > VD -7/26

                if (PhysActor != null)

                    PhysActor.VolumeDetect = true;

                AddFlag(PrimFlags.Phantom); // We set this flag also if VD is active

                VolumeDetectActive = true;

            }

            else

            {

                if (!IsVD)

                {

                    // Remove VolumeDetect in any case. Note, it's safe to call SetVolumeDetect as often as you like

                    // (mumbles, well, at least if you have infinte CPU powers :-))

                    PhysicsObject pa = this.PhysActor;

                    if (pa != null)

                        PhysActor.VolumeDetect = false;



                    VolumeDetectActive = false;

                }

            }





            if (IsTemporary)

                AddFlag(PrimFlags.TemporaryOnRez);

            else

                RemFlag(PrimFlags.TemporaryOnRez);



            if (UsePhysics != wasUsingPhysics) //Fire the event

                ParentGroup.Scene.AuroraEventManager.FireGenericEventHandler("ObjectChangedPhysicalStatus", ParentGroup);



            ParentGroup.HasGroupChanged = true;

            ScheduleUpdate(PrimUpdateFlags.PrimFlags);



            return needsPhysicalRebuild;

        }



        public void UpdateRotation(Quaternion rot)

        {

            if ((rot.X != GetRotationOffset().X) ||

                (rot.Y != GetRotationOffset().Y) ||

                (rot.Z != GetRotationOffset().Z) ||

                (rot.W != GetRotationOffset().W))

            {

                SetRotationOffset(true, rot, true);

                ValidpartOOB = false;

                ScheduleTerseUpdate();

            }

        }



        /// <summary>

        ///     Update the shape of this part.

        /// </summary>

        /// <param name="shapeBlock"></param>

        public void UpdateShape(ObjectShapePacket.ObjectDataBlock shapeBlock)

        {

            UpdateShape(shapeBlock, true);

        }



        /// <summary>

        ///     Having this function because I found when scripts updated the shape.. over and over, it would fill up the memory

        ///     Having the extra paramater updatePhysics can prevent physics updates on the changes

        ///     The onlyplace this effects is if a script changes the shape

        ///     If the LocklessQueue gets updated this can be removed

        /// </summary>

        /// <param name="shapeBlock"></param>

        /// <param name="UpdatePhysics"></param>

        public void UpdateShape(ObjectShapePacket.ObjectDataBlock shapeBlock, bool UpdatePhysics)

        {

            IOpenRegionSettingsModule module = ParentGroup.Scene.RequestModuleInterface<IOpenRegionSettingsModule>();

            if (module != null)

            {

                if (shapeBlock.ProfileHollow > (module.MaximumHollowSize*500) &&

                    module.MaximumHollowSize != -1)

                    //This is so that it works correctly, since the packet sends (N * 500)

                {

                    shapeBlock.ProfileHollow = (ushort) (module.MaximumHollowSize*500);

                }

                if (shapeBlock.PathScaleY > (200 - (module.MinimumHoleSize*100)) &&

                    module.MinimumHoleSize != -1 && shapeBlock.PathCurve == 32)

                    //This is how the packet is set up... so this is how we check for it...

                {

                    shapeBlock.PathScaleY = Convert.ToByte((200 - (module.MinimumHoleSize*100)));

                }

            }



            m_shape.PathBegin = shapeBlock.PathBegin;

            m_shape.PathEnd = shapeBlock.PathEnd;

            m_shape.PathScaleX = shapeBlock.PathScaleX;

            m_shape.PathScaleY = shapeBlock.PathScaleY;

            m_shape.PathShearX = shapeBlock.PathShearX;

            m_shape.PathShearY = shapeBlock.PathShearY;

            m_shape.PathSkew = shapeBlock.PathSkew;

            m_shape.ProfileBegin = shapeBlock.ProfileBegin;

            m_shape.ProfileEnd = shapeBlock.ProfileEnd;

            m_shape.PathCurve = shapeBlock.PathCurve;

            m_shape.ProfileCurve = shapeBlock.ProfileCurve;



            m_shape.ProfileHollow = shapeBlock.ProfileHollow;

            m_shape.PathRadiusOffset = shapeBlock.PathRadiusOffset;

            m_shape.PathRevolutions = shapeBlock.PathRevolutions;

            m_shape.PathTaperX = shapeBlock.PathTaperX;

            m_shape.PathTaperY = shapeBlock.PathTaperY;

            m_shape.PathTwist = shapeBlock.PathTwist;

            m_shape.PathTwistBegin = shapeBlock.PathTwistBegin;



            if (m_shape.SculptEntry && UpdatePhysics)

                m_parentGroup.Scene.AssetService.Get(m_shape.SculptTexture.ToString(), true, AssetReceived);

            else

            {

                Shape = m_shape;



                if ((UpdatePhysics) && (PhysActor != null))

                    PhysActor.Shape = m_shape;

            }



            // This is what makes vehicle trailers work

            // A script in a child prim re-issues

            // llSetPrimitiveParams(PRIM_TYPE) every few seconds. That

            // prevents autoreturn. This also works in SL.

            if (ParentGroup.RootPart != this)

                ParentGroup.RootPart.Rezzed = DateTime.UtcNow;



            ValidpartOOB = false;

            ParentGroup.HasGroupChanged = true;

            ScheduleUpdate(PrimUpdateFlags.FullUpdate);

        }



        /// <summary>

        ///     Update the textures on the part.

        /// </summary>

        /// Added to handle bug in libsecondlife's TextureEntry.ToBytes()

        /// not handling RGBA properly. Cycles through, and "fixes" the color

        /// info

        /// <param name="tex"></param>

        /// <param name="sendChangedEvent"></param>

        public void UpdateTexture(Primitive.TextureEntry tex, bool sendChangedEvent)

        {

            //Color4 tmpcolor;

            //for (uint i = 0; i < 32; i++)

            //{

            //    if (tex.FaceTextures[i] != null)

            //    {

            //        tmpcolor = tex.GetFace((uint) i).RGBA;

            //        tmpcolor.A = tmpcolor.A*255;

            //        tmpcolor.R = tmpcolor.R*255;

            //        tmpcolor.G = tmpcolor.G*255;

            //        tmpcolor.B = tmpcolor.B*255;

            //        tex.FaceTextures[i].RGBA = tmpcolor;

            //    }

            //}

            //tmpcolor = tex.DefaultTexture.RGBA;

            //tmpcolor.A = tmpcolor.A*255;

            //tmpcolor.R = tmpcolor.R*255;

            //tmpcolor.G = tmpcolor.G*255;

            //tmpcolor.B = tmpcolor.B*255;

            //tex.DefaultTexture.RGBA = tmpcolor;

            UpdateTextureEntry(tex.GetBytes(), sendChangedEvent);

        }



        public void aggregateScriptEvents()

        {

            AggregateScriptEvents = 0;



            // Aggregate script events

            lock (m_scriptEvents)

            {

                foreach (scriptEvents s in m_scriptEvents.Values)

                {

                    AggregateScriptEvents |= s;

                }

            }



            uint objectflagupdate = 0;



            if (

                ((AggregateScriptEvents & scriptEvents.touch) != 0) ||

                ((AggregateScriptEvents & scriptEvents.touch_end) != 0) ||

                ((AggregateScriptEvents & scriptEvents.touch_start) != 0)

                )

            {

                objectflagupdate |= (uint) PrimFlags.Touch;

            }



            if ((AggregateScriptEvents & scriptEvents.money) != 0)

            {

                objectflagupdate |= (uint) PrimFlags.Money;

            }



            if (AllowedDrop)

            {

                objectflagupdate |= (uint) PrimFlags.AllowInventoryDrop;

            }



            // subscribe to physics updates.

            //We subscribe by default now... so 'shouldn't' need this

            if ((((AggregateScriptEvents & scriptEvents.collision) != 0) ||

                 ((AggregateScriptEvents & scriptEvents.collision_end) != 0) ||

                 ((AggregateScriptEvents & scriptEvents.collision_start) != 0) ||

                 ((AggregateScriptEvents & scriptEvents.land_collision) != 0) ||

                 ((AggregateScriptEvents & scriptEvents.land_collision_end) != 0) ||

                 ((AggregateScriptEvents & scriptEvents.land_collision_start) != 0)

                ) && PhysActor != null)

            {

                if (!m_hasSubscribedToCollisionEvent)

                {

                    m_hasSubscribedToCollisionEvent = true;

                    PhysActor.OnCollisionUpdate += PhysicsCollision;

                    PhysActor.SubscribeEvents(1000);

                }

            }

            else if (PhysActor != null)

            {

                if (m_hasSubscribedToCollisionEvent)

                {

                    m_hasSubscribedToCollisionEvent = false;

                    PhysActor.OnCollisionUpdate -= PhysicsCollision;

                }

            }



            LocalFlags = (PrimFlags) objectflagupdate;



            if (m_parentGroup != null && m_parentGroup.RootPart == this)

            {

                m_parentGroup.aggregateScriptEvents();

            }

            else

            {

//                MainConsole.Instance.DebugFormat(

//                    "[SCENE OBJECT PART]: Scheduling part {0} {1} for full update in aggregateScriptEvents()", Name, LocalId);

                ScheduleUpdate(PrimUpdateFlags.PrimFlags);

            }

        }



        public int registerTargetWaypoint(Vector3 target, float tolerance)

        {

            if (m_parentGroup != null)

            {

                return m_parentGroup.registerTargetWaypoint(target, tolerance);

            }

            return 0;

        }



        public void unregisterTargetWaypoint(int handle)

        {

            if (m_parentGroup != null)

            {

                m_parentGroup.unregisterTargetWaypoint(handle);

            }

        }



        public int registerRotTargetWaypoint(Quaternion target, float tolerance)

        {

            if (m_parentGroup != null)

            {

                return m_parentGroup.registerRotTargetWaypoint(target, tolerance);

            }

            return 0;

        }



        public void unregisterRotTargetWaypoint(int handle)

        {

            if (m_parentGroup != null)

            {

                m_parentGroup.unregisterRotTargetWaypoint(handle);

            }

        }



        #region Vehicle Params



        private OSDArray m_VehicleFlags;



        private OSDMap m_VehicleParams;



        public int VehicleType { get; set; }



        public OSDArray VehicleFlags

        {

            get

            {

                if (m_VehicleFlags == null)

                    m_VehicleFlags = new OSDArray();

                return m_VehicleFlags;

            }

            set { m_VehicleFlags = value; }

        }



        public OSDMap VehicleParameters

        {

            get

            {

                if (m_VehicleParams == null)

                    m_VehicleParams = new OSDMap();

                return m_VehicleParams;

            }

            set { m_VehicleParams = value; }

        }



        #endregion



        public void SetRotationOffset(bool UpdatePrimActor, Quaternion value, bool single)

        {

            if (ParentGroup != null)

                ParentGroup.HasGroupChanged = true;

            ValidpartOOB = false;



            RotationOffset = value;



            PhysicsObject actor = PhysActor;

            if (actor != null)

            {

                if (value.W == 0) //We have an issue here... try to normalize it

                    value.Normalize();

                if (actor.PhysicsActorType != (int) ActorTypes.Prim) // for now let other times get updates

                {

                    UpdatePrimActor = true;

                    single = false;

                }

                if (UpdatePrimActor)

                {

                    try

                    {

                        // Root prim gets value directly

                        if (_parentID == 0)

                        {

                            actor.Orientation = value;

                            //MainConsole.Instance.Info("[PART]: RO1:" + actor.Orientation.ToString());

                        }

                        else if (single || !actor.IsPhysical)

                        {

                            // Child prim we have to calculate it's world rotationwel

                            Quaternion resultingrotation = GetWorldRotation();

                            actor.Orientation = resultingrotation;

                            //MainConsole.Instance.Info("[PART]: RO2:" + actor.Orientation.ToString());

                        }

                    }

                    catch (Exception ex)

                    {

                        MainConsole.Instance.Error("[SCENEOBJECTPART]: ROTATIONOFFSET" + ex.Message);

                    }

                }

            }

        }



        public void SetOffsetPosition(Vector3 value)

        {

            m_offsetPosition = value;

            ValidpartOOB = false;

        }



        public void SetGroupPosition(Vector3 value)

        {

            m_groupPosition = new Vector3(value.X, value.Y, value.Z);

        }





        public void FixGroupPosition(Vector3 value, bool single)

        {

            FixGroupPositionComum(true, value, single);

        }



        public void FixGroupPositionComum(bool UpdatePrimActor, Vector3 value, bool single)

        {

            bool TriggerMoving_End = false;

            if (m_groupPosition != value)

            {

                if (ParentGroup != null)

                    ParentGroup.HasGroupChanged = true;

                TriggerMoving_End = true;

                TriggerScriptMovingStartEvent();

            }



            m_groupPosition = value;



            PhysicsObject actor = PhysActor;



            if (actor != null)

            {

                if (actor.PhysicsActorType != (int) ActorTypes.Prim) // for now let other times get updates

                {

                    UpdatePrimActor = true;

                    single = false;

                }

                if (UpdatePrimActor)

                {

                    try

                    {

                        // Root prim actually goes at Position

                        if (_parentID == 0)

                        {

                            actor.Position = value;

                        }

                        else if (single || !actor.IsPhysical)

                        {

                            // To move the child prim in respect to the group position and rotation we have to calculate

                            actor.Position = GetWorldPosition();

                            actor.Orientation = GetWorldRotation();

                        }



                        // Tell the physics engines that this prim changed.

                    }

                    catch (Exception e)

                    {

                        MainConsole.Instance.Error("[SCENEOBJECTPART]: GROUP POSITION. " + e.Message);

                    }

                }

            }



            lock (SitTargetAvatar)

            {

                if (SitTargetAvatar.Count != 0)

                {

                    foreach (UUID avID in SitTargetAvatar.Where(avID => m_parentGroup != null))

                    {

                        IScenePresence avatar;

                        if (m_parentGroup.Scene.TryGetScenePresence(avID, out avatar))

                        {

                            avatar.ParentPosition = GetWorldPosition();

                        }

                    }

                }

            }

            if (TriggerMoving_End)

                TriggerScriptMovingEndEvent();

        }



        public void ResetExpire()

        {

            Expires = DateTime.Now + new TimeSpan(TimeSpan.TicksPerMinute);

        }



        public event AddPhysics OnAddPhysics;

        public event RemovePhysics OnRemovePhysics;



        public void FireOnAddedPhysics()

        {

            if (OnAddPhysics != null)

                OnAddPhysics();

        }



        public void FireOnRemovedPhysics()

        {

            if (OnRemovePhysics != null)

                OnRemovePhysics();

        }



        public void ClearUndoState()

        {

            lock (m_undo)

            {

                m_undo = new UndoStack<UndoState>(5);

            }

            lock (m_redo)

            {

                m_redo = new UndoStack<UndoState>(5);

            }

            StoreUndoState();

        }



        public byte ConvertScriptUintToByte(uint indata)

        {

            byte outdata = (byte) TextureAnimFlags.NONE;

            if ((indata & 1) != 0) outdata |= (byte) TextureAnimFlags.ANIM_ON;

            if ((indata & 2) != 0) outdata |= (byte) TextureAnimFlags.LOOP;

            if ((indata & 4) != 0) outdata |= (byte) TextureAnimFlags.REVERSE;

            if ((indata & 8) != 0) outdata |= (byte) TextureAnimFlags.PING_PONG;

            if ((indata & 16) != 0) outdata |= (byte) TextureAnimFlags.SMOOTH;

            if ((indata & 32) != 0) outdata |= (byte) TextureAnimFlags.ROTATE;

            if ((indata & 64) != 0) outdata |= (byte) TextureAnimFlags.SCALE;

            return outdata;

        }



        /// <summary>

        ///     Duplicates this part.

        /// </summary>

        /// <param name="parent"></param>

        /// <param name="clonePhys"></param>

        /// <returns></returns>

        public SceneObjectPart Copy(SceneObjectGroup parent, bool clonePhys)

        {

            SceneObjectPart dupe = (SceneObjectPart) MemberwiseClone();

            dupe.m_parentGroup = parent;

            dupe.m_shape = m_shape.Copy();

            dupe.m_partOOBsize = m_partOOBsize;

            dupe.m_partOOBoffset = m_partOOBoffset;

            dupe.m_partBSphereRadiusSQ = m_partBSphereRadiusSQ;

            dupe.m_regionHandle = m_regionHandle;



            //memberwiseclone means it also clones the physics actor reference

            // This will make physical prim 'bounce' if not set to null.



            if (!clonePhys)

                dupe.PhysActor = null;



            dupe._groupID = GroupID;

            dupe.m_groupPosition = m_groupPosition;

            dupe.m_offsetPosition = m_offsetPosition;

            dupe.RotationOffset = RotationOffset;

            dupe.Velocity = new Vector3(0, 0, 0);

            dupe.Acceleration = new Vector3(0, 0, 0);

            dupe.AngularVelocity = new Vector3(0, 0, 0);

            dupe.Flags = Flags;

            dupe.LinkNum = LinkNum;

            dupe.SitTargetAvatar = new List<UUID>();

            dupe.m_LoopSoundSlavePrims = new List<SceneObjectPart>();

            dupe.m_PlaySoundSlavePrims = new List<SceneObjectPart>();



            dupe.m_ValidpartOOB = false;



            dupe._ownershipCost = _ownershipCost;

            dupe._objectSaleType = _objectSaleType;

            dupe._salePrice = _salePrice;

            dupe._category = _category;

            dupe.Rezzed = Rezzed;



            dupe.m_inventory = new SceneObjectPartInventory(dupe)

                                   {

                                       Items = (TaskInventoryDictionary) m_inventory.Items.Clone(),

                                       HasInventoryChanged = m_inventory.HasInventoryChanged

                                   };



            byte[] extraP = new byte[Shape.ExtraParams.Length];

            Array.Copy(Shape.ExtraParams, extraP, extraP.Length);

            dupe.Shape.ExtraParams = extraP;



            dupe.m_scriptEvents = new Dictionary<UUID, scriptEvents>();

            dupe.Shape.SculptData = this.Shape.SculptData;

            dupe.GenerateRotationalVelocityFromOmega();



            return dupe;

        }



        public void AssetReceived(string id, Object sender, AssetBase asset)

        {

            if (asset != null)

            {

                this.Shape.SculptEntry = true;

                this.Shape.SculptData = asset.Data; //Set the asset data

            }



            bool isMesh = asset == null ? false : (asset.Type == (int) AssetType.Mesh);

            if (isMesh)

                this.Shape.SculptType = (byte) SculptType.Mesh;

            PrimitiveBaseShape shape = Shape.Copy();

            if ((bool) sender && this.PhysActor != null &&

                (asset != null || (this.Shape.SculptData != null && this.Shape.SculptData.Length != 0)))

                //Update physics

            {

                //Get physics to update in a hackish way

                this.PhysActor.Shape = shape;

            }

            this.Shape = shape;

        }



        public double GetDistanceTo(Vector3 a, Vector3 b)

        {

            float dx = a.X - b.X;

            float dy = a.Y - b.Y;

            float dz = a.Z - b.Z;

            return Math.Sqrt(dx*dx + dy*dy + dz*dz);

        }



        public UUID GetRootPartUUID()

        {

            if (m_parentGroup != null)

            {

                return m_parentGroup.UUID;

            }

            return UUID.Zero;

        }



        public void SetMoveToTarget(bool Enabled, Vector3 target, float tau)

        {

            if (Enabled)

            {

                m_initialPIDLocation = AbsolutePosition;

                PIDTarget = target;

                PIDTau = tau;

                PIDActive = true;

            }

            else

            {

                PIDActive = false;

                m_initialPIDLocation = Vector3.Zero;

            }

        }



        public void StopHover()

        {

            m_parentGroup.SetHoverHeight(0f, PIDHoverType.Ground, 0f);

        }



        public virtual void OnGrab(Vector3 offsetPos, IClientAPI remoteClient)

        {

        }



        public void PhysicsCollision(EventArgs e)

        {

            // single threaded here

            if (e == null)

                return;



            CollisionEventUpdate a = (CollisionEventUpdate) e;

            Dictionary<uint, ContactPoint> collissionswith = a.GetCollisionEvents();

            List<uint> thisHitColliders = new List<uint>();

            List<uint> startedColliders = new List<uint>();

            ContactPoint startedCollider = new ContactPoint();



            // calculate things that started colliding this time

            // and build up list of colliders this time

            foreach (uint localID in collissionswith.Keys)

            {

                thisHitColliders.Add(localID);

                if (!m_lastColliders.Contains(localID))

                {

                    startedCollider = collissionswith[localID];

                    startedColliders.Add(localID);

                }

                //MainConsole.Instance.Debug("[OBJECT]: Collided with:" + localid.ToString() + " at depth of: " + collissionswith[localid].ToString());

            }



            // calculate things that ended colliding

            List<uint> endedColliders = m_lastColliders.Where(localID => !thisHitColliders.Contains(localID)).ToList();



            //add the items that started colliding this time to the last colliders list.

            m_lastColliders.AddRange(startedColliders);

            // remove things that ended colliding from the last colliders list

            foreach (uint localID in endedColliders)

                m_lastColliders.Remove(localID);



            if (m_parentGroup == null)

                return;

            if (m_parentGroup.IsDeleted)

                return;



            const string SoundGlassCollision = "6a45ba0b-5775-4ea8-8513-26008a17f873";

            const string SoundMetalCollision = "9e5c1297-6eed-40c0-825a-d9bcd86e3193";

            const string SoundStoneCollision = "9538f37c-456e-4047-81be-6435045608d4";

            const string SoundFleshCollision = "dce5fdd4-afe4-4ea1-822f-dd52cac46b08";

            const string SoundPlasticCollision = "0e24a717-b97e-4b77-9c94-b59a5a88b2da";

            const string SoundRubberCollision = "153c8bf7-fb89-4d89-b263-47e58b1b4774";

            const string SoundWoodCollision = "063c97d3-033a-4e9b-98d8-05c8074922cb";



            // play the sound.

            if (startedColliders.Count > 0 && CollisionSound != UUID.Zero && CollisionSoundVolume > 0.0f)

            {

                SendSound(CollisionSound.ToString(), CollisionSoundVolume, true, 0, 0, false, false);

            }

            else if (startedColliders.Count > 0)

            {

                switch (startedCollider.Type)

                {

                    case ActorTypes.Agent:

                        break; // Agents will play the sound so we don't



                    case ActorTypes.Ground:

                        SendSound(SoundWoodCollision, 1, true, 0, 0, false, false);

                        break; //Always play the click or thump sound when hitting ground



                    case ActorTypes.Prim:

                        switch (Material)

                        {

                            case (int) OpenMetaverse.Material.Flesh:

                                SendSound(SoundFleshCollision, 1, true, 0, 0, false, false);

                                break;

                            case (int) OpenMetaverse.Material.Glass:

                                SendSound(SoundGlassCollision, 1, true, 0, 0, false, false);

                                break;

                            case (int) OpenMetaverse.Material.Metal:

                                SendSound(SoundMetalCollision, 1, true, 0, 0, false, false);

                                break;

                            case (int) OpenMetaverse.Material.Plastic:

                                SendSound(SoundPlasticCollision, 1, true, 0, 0, false, false);

                                break;

                            case (int) OpenMetaverse.Material.Rubber:

                                SendSound(SoundRubberCollision, 1, true, 0, 0, false, false);

                                break;

                            case (int) OpenMetaverse.Material.Stone:

                                SendSound(SoundStoneCollision, 1, true, 0, 0, false, false);

                                break;

                            case (int) OpenMetaverse.Material.Wood:

                                SendSound(SoundWoodCollision, 1, true, 0, 0, false, false);

                                break;

                        }

                        break; //Play based on material type in prim2prim collisions



                    default:

                        break; //Unclear of what this object is, no sounds

                }

            }

            if (CollisionSprite != UUID.Zero && CollisionSoundVolume > 0.0f)

                // The collision volume isn't a mistake, its an SL feature/bug

            {

                // TODO: make a sprite!

            }

            if (((AggregateScriptEvents & scriptEvents.collision) != 0) ||

                ((AggregateScriptEvents & scriptEvents.collision_end) != 0) ||

                ((AggregateScriptEvents & scriptEvents.collision_start) != 0) ||

                ((AggregateScriptEvents & scriptEvents.land_collision_start) != 0) ||

                ((AggregateScriptEvents & scriptEvents.land_collision) != 0) ||

                ((AggregateScriptEvents & scriptEvents.land_collision_end) != 0) ||

                (CollisionSound != UUID.Zero) ||

                PassCollisions != 2)

            {

                if ((m_parentGroup.RootPart.ScriptEvents & scriptEvents.collision_start) != 0 ||

                    (m_parentGroup.RootPart.ScriptEvents & scriptEvents.collision) != 0)

                {

                    // do event notification

                    if (startedColliders.Count > 0)

                    {

                        ColliderArgs StartCollidingMessage = new ColliderArgs();

                        List<DetectedObject> colliding = new List<DetectedObject>();

                        foreach (uint localId in startedColliders)

                        {

                            if (localId != 0)

                            {

                                // always running this check because if the user deletes the object it would return a null reference.

                                if (m_parentGroup == null)

                                    return;



                                if (m_parentGroup.Scene == null)

                                    return;



                                ISceneChildEntity obj = m_parentGroup.Scene.GetSceneObjectPart(localId);

                                string data = "";

                                if (obj != null)

                                {

                                    if (m_parentGroup.RootPart.CollisionFilter.ContainsValue(obj.UUID.ToString()) ||

                                        m_parentGroup.RootPart.CollisionFilter.ContainsValue(obj.Name))

                                    {

                                        bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1, out data);

                                        //If it is 1, it is to accept ONLY collisions from this object

                                        if (found)

                                        {

                                            DetectedObject detobj = new DetectedObject

                                                                        {

                                                                            keyUUID = obj.UUID,

                                                                            nameStr = obj.Name,

                                                                            ownerUUID = obj.OwnerID,

                                                                            posVector = obj.AbsolutePosition,

                                                                            rotQuat = obj.GetWorldRotation(),

                                                                            velVector = obj.Velocity,

                                                                            colliderType = 0,

                                                                            groupUUID = obj.GroupID

                                                                        };

                                            colliding.Add(detobj);

                                        }

                                            //If it is 0, it is to not accept collisions from this object

                                        else

                                        {

                                        }

                                    }

                                    else

                                    {

                                        bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1, out data);

                                        //If it is 1, it is to accept ONLY collisions from this object, so this other object will not work

                                        if (!found)

                                        {

                                            DetectedObject detobj = new DetectedObject

                                                                        {

                                                                            keyUUID = obj.UUID,

                                                                            nameStr = obj.Name,

                                                                            ownerUUID = obj.OwnerID,

                                                                            posVector = obj.AbsolutePosition,

                                                                            rotQuat = obj.GetWorldRotation(),

                                                                            velVector = obj.Velocity,

                                                                            colliderType = 0,

                                                                            groupUUID = obj.GroupID

                                                                        };

                                            colliding.Add(detobj);

                                        }

                                    }

                                }

                                else

                                {

                                    IScenePresence av = ParentGroup.Scene.GetScenePresence(localId);

                                    if (av != null)

                                    {

                                        if (av.LocalId == localId)

                                        {

                                            if (

                                                m_parentGroup.RootPart.CollisionFilter.ContainsValue(av.UUID.ToString()) ||

                                                m_parentGroup.RootPart.CollisionFilter.ContainsValue(av.Name))

                                            {

                                                bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1,

                                                                                                                out data);

                                                //If it is 1, it is to accept ONLY collisions from this avatar

                                                if (found)

                                                {

                                                    DetectedObject detobj = new DetectedObject

                                                                                {

                                                                                    keyUUID = av.UUID,

                                                                                    nameStr = av.ControllingClient.Name,

                                                                                    ownerUUID = av.UUID,

                                                                                    posVector = av.AbsolutePosition,

                                                                                    rotQuat = av.Rotation,

                                                                                    velVector = av.Velocity,

                                                                                    colliderType = 0,

                                                                                    groupUUID =

                                                                                        av.ControllingClient

                                                                                          .ActiveGroupId

                                                                                };

                                                    colliding.Add(detobj);

                                                }

                                                    //If it is 0, it is to not accept collisions from this avatar

                                                else

                                                {

                                                }

                                            }

                                            else

                                            {

                                                bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1,

                                                                                                                out data);

                                                //If it is 1, it is to accept ONLY collisions from this avatar, so this other avatar will not work

                                                if (!found)

                                                {

                                                    DetectedObject detobj = new DetectedObject

                                                                                {

                                                                                    keyUUID = av.UUID,

                                                                                    nameStr = av.ControllingClient.Name,

                                                                                    ownerUUID = av.UUID,

                                                                                    posVector = av.AbsolutePosition,

                                                                                    rotQuat = av.Rotation,

                                                                                    velVector = av.Velocity,

                                                                                    colliderType = 0,

                                                                                    groupUUID =

                                                                                        av.ControllingClient

                                                                                          .ActiveGroupId

                                                                                };

                                                    colliding.Add(detobj);

                                                }

                                            }

                                        }

                                    }

                                }

                            }

                        }

                        if (colliding.Count > 0)

                        {

                            StartCollidingMessage.Colliders = colliding;

                            // always running this check because if the user deletes the object it would return a null reference.

                            if (m_parentGroup == null)

                                return;



                            if (m_parentGroup.Scene == null)

                                return;

                            //Always send to the prim it is occuring to

                            m_parentGroup.Scene.EventManager.TriggerScriptCollidingStart(this, StartCollidingMessage);

                            if ((this.UUID != this.ParentGroup.RootPart.UUID))

                            {

                                const int PASS_IF_NOT_HANDLED = 0;

                                const int PASS_ALWAYS = 1;

                                const int PASS_NEVER = 2;

                                if (this.PassCollisions == PASS_NEVER)

                                {

                                }

                                if (this.PassCollisions == PASS_ALWAYS)

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptCollidingStart(

                                        this.ParentGroup.RootPart, StartCollidingMessage);

                                }

                                else if (((this.ScriptEvents & scriptEvents.collision_start) == 0) &&

                                         this.PassCollisions == PASS_IF_NOT_HANDLED)

                                    //If no event in this prim, pass to parent

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptCollidingStart(

                                        this.ParentGroup.RootPart, StartCollidingMessage);

                                }

                            }

                        }

                    }

                }



                if ((m_parentGroup.RootPart.ScriptEvents & scriptEvents.collision) != 0)

                {

                    if (m_lastColliders.Count > 0)

                    {

                        ColliderArgs CollidingMessage = new ColliderArgs();

                        List<DetectedObject> colliding = new List<DetectedObject>();

                        foreach (uint localId in m_lastColliders)

                        {

                            if (localId != 0)

                            {

                                if (m_parentGroup == null)

                                    return;



                                if (m_parentGroup.Scene == null)

                                    return;



                                ISceneChildEntity obj = m_parentGroup.Scene.GetSceneObjectPart(localId);

                                string data = "";

                                if (obj != null)

                                {

                                    if (m_parentGroup.RootPart.CollisionFilter.ContainsValue(obj.UUID.ToString()) ||

                                        m_parentGroup.RootPart.CollisionFilter.ContainsValue(obj.Name))

                                    {

                                        bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1, out data);

                                        //If it is 1, it is to accept ONLY collisions from this object

                                        if (found)

                                        {

                                            DetectedObject detobj = new DetectedObject

                                                                        {

                                                                            keyUUID = obj.UUID,

                                                                            nameStr = obj.Name,

                                                                            ownerUUID = obj.OwnerID,

                                                                            posVector = obj.AbsolutePosition,

                                                                            rotQuat = obj.GetWorldRotation(),

                                                                            velVector = obj.Velocity,

                                                                            colliderType = 0,

                                                                            groupUUID = obj.GroupID

                                                                        };

                                            colliding.Add(detobj);

                                        }

                                            //If it is 0, it is to not accept collisions from this object

                                        else

                                        {

                                        }

                                    }

                                    else

                                    {

                                        bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1, out data);

                                        //If it is 1, it is to accept ONLY collisions from this object, so this other object will not work

                                        if (!found)

                                        {

                                            DetectedObject detobj = new DetectedObject

                                                                        {

                                                                            keyUUID = obj.UUID,

                                                                            nameStr = obj.Name,

                                                                            ownerUUID = obj.OwnerID,

                                                                            posVector = obj.AbsolutePosition,

                                                                            rotQuat = obj.GetWorldRotation(),

                                                                            velVector = obj.Velocity,

                                                                            colliderType = 0,

                                                                            groupUUID = obj.GroupID

                                                                        };

                                            colliding.Add(detobj);

                                        }

                                    }

                                }

                                else

                                {

                                    IScenePresence av = ParentGroup.Scene.GetScenePresence(localId);

                                    if (av != null)

                                    {

                                        if (m_parentGroup.RootPart.CollisionFilter.ContainsValue(av.UUID.ToString()) ||

                                            m_parentGroup.RootPart.CollisionFilter.ContainsValue(av.Name))

                                        {

                                            bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1, out data);

                                            //If it is 1, it is to accept ONLY collisions from this avatar

                                            if (found)

                                            {

                                                DetectedObject detobj = new DetectedObject

                                                                            {

                                                                                keyUUID = av.UUID,

                                                                                nameStr = av.ControllingClient.Name,

                                                                                ownerUUID = av.UUID,

                                                                                posVector = av.AbsolutePosition,

                                                                                rotQuat = av.Rotation,

                                                                                velVector = av.Velocity,

                                                                                colliderType = 0,

                                                                                groupUUID =

                                                                                    av.ControllingClient.ActiveGroupId

                                                                            };

                                                colliding.Add(detobj);

                                            }

                                                //If it is 0, it is to not accept collisions from this avatar

                                            else

                                            {

                                            }

                                        }

                                        else

                                        {

                                            bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1, out data);

                                            //If it is 1, it is to accept ONLY collisions from this avatar, so this other avatar will not work

                                            if (!found)

                                            {

                                                DetectedObject detobj = new DetectedObject

                                                                            {

                                                                                keyUUID = av.UUID,

                                                                                nameStr = av.ControllingClient.Name,

                                                                                ownerUUID = av.UUID,

                                                                                posVector = av.AbsolutePosition,

                                                                                rotQuat = av.Rotation,

                                                                                velVector = av.Velocity,

                                                                                colliderType = 0,

                                                                                groupUUID =

                                                                                    av.ControllingClient.ActiveGroupId

                                                                            };

                                                colliding.Add(detobj);

                                            }

                                        }

                                    }

                                }

                            }

                        }

                        if (colliding.Count > 0)

                        {

                            CollidingMessage.Colliders = colliding;

                            // always running this check because if the user deletes the object it would return a null reference.

                            if (m_parentGroup == null)

                                return;



                            if (m_parentGroup.Scene == null)

                                return;



                            m_parentGroup.Scene.EventManager.TriggerScriptColliding(this, CollidingMessage);



                            if ((this.UUID != this.ParentGroup.RootPart.UUID))

                            {

                                const int PASS_IF_NOT_HANDLED = 0;

                                const int PASS_ALWAYS = 1;

                                const int PASS_NEVER = 2;

                                if (this.PassCollisions == PASS_NEVER)

                                {

                                }

                                if (this.PassCollisions == PASS_ALWAYS)

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptColliding(this.ParentGroup.RootPart,

                                                                                            CollidingMessage);

                                }

                                else if (((this.ScriptEvents & scriptEvents.collision) == 0) &&

                                         this.PassCollisions == PASS_IF_NOT_HANDLED)

                                    //If no event in this prim, pass to parent

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptColliding(

                                        this.ParentGroup.RootPart, CollidingMessage);

                                }

                            }

                        }

                    }

                }



                if ((m_parentGroup.RootPart.ScriptEvents & scriptEvents.collision_end) != 0)

                {

                    if (endedColliders.Count > 0)

                    {

                        ColliderArgs EndCollidingMessage = new ColliderArgs();

                        List<DetectedObject> colliding = new List<DetectedObject>();

                        foreach (uint localId in endedColliders)

                        {

                            if (localId != 0)

                            {

                                // always running this check because if the user deletes the object it would return a null reference.

                                if (m_parentGroup == null)

                                    return;

                                if (m_parentGroup.Scene == null)

                                    return;

                                ISceneChildEntity obj = m_parentGroup.Scene.GetSceneObjectPart(localId);

                                string data = "";

                                if (obj != null)

                                {

                                    if (m_parentGroup.RootPart.CollisionFilter.ContainsValue(obj.UUID.ToString()) ||

                                        m_parentGroup.RootPart.CollisionFilter.ContainsValue(obj.Name))

                                    {

                                        bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1, out data);

                                        //If it is 1, it is to accept ONLY collisions from this object

                                        if (found)

                                        {

                                            DetectedObject detobj = new DetectedObject

                                                                        {

                                                                            keyUUID = obj.UUID,

                                                                            nameStr = obj.Name,

                                                                            ownerUUID = obj.OwnerID,

                                                                            posVector = obj.AbsolutePosition,

                                                                            rotQuat = obj.GetWorldRotation(),

                                                                            velVector = obj.Velocity,

                                                                            colliderType = 0,

                                                                            groupUUID = obj.GroupID

                                                                        };

                                            colliding.Add(detobj);

                                        }

                                            //If it is 0, it is to not accept collisions from this object

                                        else

                                        {

                                        }

                                    }

                                    else

                                    {

                                        bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1, out data);

                                        //If it is 1, it is to accept ONLY collisions from this object, so this other object will not work

                                        if (!found)

                                        {

                                            DetectedObject detobj = new DetectedObject

                                                                        {

                                                                            keyUUID = obj.UUID,

                                                                            nameStr = obj.Name,

                                                                            ownerUUID = obj.OwnerID,

                                                                            posVector = obj.AbsolutePosition,

                                                                            rotQuat = obj.GetWorldRotation(),

                                                                            velVector = obj.Velocity,

                                                                            colliderType = 0,

                                                                            groupUUID = obj.GroupID

                                                                        };

                                            colliding.Add(detobj);

                                        }

                                    }

                                }

                                else

                                {

                                    IScenePresence av = ParentGroup.Scene.GetScenePresence(localId);

                                    if (av != null)

                                    {

                                        if (av.LocalId == localId)

                                        {

                                            if (

                                                m_parentGroup.RootPart.CollisionFilter.ContainsValue(av.UUID.ToString()) ||

                                                m_parentGroup.RootPart.CollisionFilter.ContainsValue(av.Name))

                                            {

                                                bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1,

                                                                                                                out data);

                                                //If it is 1, it is to accept ONLY collisions from this avatar

                                                if (found)

                                                {

                                                    DetectedObject detobj = new DetectedObject

                                                                                {

                                                                                    keyUUID = av.UUID,

                                                                                    nameStr = av.ControllingClient.Name,

                                                                                    ownerUUID = av.UUID,

                                                                                    posVector = av.AbsolutePosition,

                                                                                    rotQuat = av.Rotation,

                                                                                    velVector = av.Velocity,

                                                                                    colliderType = 0,

                                                                                    groupUUID =

                                                                                        av.ControllingClient

                                                                                          .ActiveGroupId

                                                                                };

                                                    colliding.Add(detobj);

                                                }

                                                    //If it is 0, it is to not accept collisions from this avatar

                                                else

                                                {

                                                }

                                            }

                                            else

                                            {

                                                bool found = m_parentGroup.RootPart.CollisionFilter.TryGetValue(1,

                                                                                                                out data);

                                                //If it is 1, it is to accept ONLY collisions from this avatar, so this other avatar will not work

                                                if (!found)

                                                {

                                                    DetectedObject detobj = new DetectedObject

                                                                                {

                                                                                    keyUUID = av.UUID,

                                                                                    nameStr = av.ControllingClient.Name,

                                                                                    ownerUUID = av.UUID,

                                                                                    posVector = av.AbsolutePosition,

                                                                                    rotQuat = av.Rotation,

                                                                                    velVector = av.Velocity,

                                                                                    colliderType = 0,

                                                                                    groupUUID =

                                                                                        av.ControllingClient

                                                                                          .ActiveGroupId

                                                                                };

                                                    colliding.Add(detobj);

                                                }

                                            }

                                        }

                                    }

                                }

                            }

                        }



                        if (colliding.Count > 0)

                        {

                            EndCollidingMessage.Colliders = colliding;

                            // always running this check because if the user deletes the object it would return a null reference.

                            if (m_parentGroup == null)

                                return;



                            if (m_parentGroup.Scene == null)

                                return;



                            m_parentGroup.Scene.EventManager.TriggerScriptCollidingEnd(this, EndCollidingMessage);



                            if ((this.UUID != this.ParentGroup.RootPart.UUID))

                            {

                                const int PASS_IF_NOT_HANDLED = 0;

                                const int PASS_ALWAYS = 1;

                                const int PASS_NEVER = 2;

                                if (this.PassCollisions == PASS_NEVER)

                                {

                                }

                                if (this.PassCollisions == PASS_ALWAYS)

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptCollidingEnd(

                                        this.ParentGroup.RootPart, EndCollidingMessage);

                                }

                                else if (((this.ScriptEvents & scriptEvents.collision_end) == 0) &&

                                         this.PassCollisions == PASS_IF_NOT_HANDLED)

                                    //If no event in this prim, pass to parent

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptCollidingEnd(

                                        this.ParentGroup.RootPart, EndCollidingMessage);

                                }

                            }

                        }

                    }

                }

                if ((m_parentGroup.RootPart.ScriptEvents & scriptEvents.land_collision_start) != 0 ||

                    (m_parentGroup.RootPart.ScriptEvents & scriptEvents.land_collision) != 0)

                {

                    if (startedColliders.Count > 0)

                    {

                        ColliderArgs LandStartCollidingMessage = new ColliderArgs();

                        List<DetectedObject> colliding = (from localId in startedColliders

                                                          where localId == 0

                                                          select new DetectedObject

                                                                     {

                                                                         keyUUID = UUID.Zero,

                                                                         nameStr = "",

                                                                         ownerUUID = UUID.Zero,

                                                                         posVector =

                                                                             m_parentGroup.RootPart.AbsolutePosition,

                                                                         rotQuat = Quaternion.Identity,

                                                                         velVector = Vector3.Zero,

                                                                         colliderType = 0,

                                                                         groupUUID = UUID.Zero

                                                                     }).ToList();



                        if (colliding.Count > 0)

                        {

                            LandStartCollidingMessage.Colliders = colliding;

                            // always running this check because if the user deletes the object it would return a null reference.

                            if (m_parentGroup == null)

                                return;



                            if (m_parentGroup.Scene == null)

                                return;



                            m_parentGroup.Scene.EventManager.TriggerScriptLandCollidingStart(this,

                                                                                             LandStartCollidingMessage);



                            if ((this.UUID != this.ParentGroup.RootPart.UUID))

                            {

                                const int PASS_IF_NOT_HANDLED = 0;

                                const int PASS_ALWAYS = 1;

                                const int PASS_NEVER = 2;

                                if (this.PassCollisions == PASS_NEVER)

                                {

                                }

                                if (this.PassCollisions == PASS_ALWAYS)

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptLandCollidingStart(

                                        this.ParentGroup.RootPart, LandStartCollidingMessage);

                                }

                                else if (((this.ScriptEvents & scriptEvents.land_collision_start) == 0) &&

                                         this.PassCollisions == PASS_IF_NOT_HANDLED)

                                    //If no event in this prim, pass to parent

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptLandCollidingStart(

                                        this.ParentGroup.RootPart, LandStartCollidingMessage);

                                }

                            }

                        }

                    }

                }

                if ((m_parentGroup.RootPart.ScriptEvents & scriptEvents.land_collision) != 0)

                {

                    if (m_lastColliders.Count > 0)

                    {

                        ColliderArgs LandCollidingMessage = new ColliderArgs();

                        List<DetectedObject> colliding = new List<DetectedObject>();

                        foreach (uint localId in m_lastColliders)

                        {

                            if (localId == 0)

                            {

                                //Hope that all is left is ground!

                                DetectedObject detobj = new DetectedObject

                                                            {

                                                                keyUUID = UUID.Zero,

                                                                nameStr = "",

                                                                ownerUUID = UUID.Zero,

                                                                posVector = m_parentGroup.RootPart.AbsolutePosition,

                                                                rotQuat = Quaternion.Identity,

                                                                velVector = Vector3.Zero,

                                                                colliderType = 0,

                                                                groupUUID = UUID.Zero

                                                            };

                                colliding.Add(detobj);

                            }

                        }



                        if (colliding.Count > 0)

                        {

                            LandCollidingMessage.Colliders = colliding;

                            // always running this check because if the user deletes the object it would return a null reference.

                            if (m_parentGroup == null)

                                return;



                            if (m_parentGroup.Scene == null)

                                return;



                            m_parentGroup.Scene.EventManager.TriggerScriptLandColliding(this, LandCollidingMessage);



                            if ((this.UUID != this.ParentGroup.RootPart.UUID))

                            {

                                const int PASS_IF_NOT_HANDLED = 0;

                                const int PASS_ALWAYS = 1;

                                const int PASS_NEVER = 2;

                                if (this.PassCollisions == PASS_NEVER)

                                {

                                }

                                if (this.PassCollisions == PASS_ALWAYS)

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptLandColliding(

                                        this.ParentGroup.RootPart,

                                        LandCollidingMessage);

                                }

                                else if (((this.ScriptEvents & scriptEvents.land_collision) == 0) &&

                                         this.PassCollisions == PASS_IF_NOT_HANDLED)

                                    //If no event in this prim, pass to parent

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptLandColliding(

                                        this.ParentGroup.RootPart, LandCollidingMessage);

                                }

                            }

                        }

                    }

                }

                if ((m_parentGroup.RootPart.ScriptEvents & scriptEvents.land_collision_end) != 0)

                {

                    if (endedColliders.Count > 0)

                    {

                        ColliderArgs LandEndCollidingMessage = new ColliderArgs();

                        List<DetectedObject> colliding = (from localId in startedColliders

                                                          where localId == 0

                                                          select new DetectedObject

                                                                     {

                                                                         keyUUID = UUID.Zero,

                                                                         nameStr = "",

                                                                         ownerUUID = UUID.Zero,

                                                                         posVector =

                                                                             m_parentGroup.RootPart.AbsolutePosition,

                                                                         rotQuat = Quaternion.Identity,

                                                                         velVector = Vector3.Zero,

                                                                         colliderType = 0,

                                                                         groupUUID = UUID.Zero

                                                                     }).ToList();



                        if (colliding.Count > 0)

                        {

                            LandEndCollidingMessage.Colliders = colliding;

                            // always running this check because if the user deletes the object it would return a null reference.

                            if (m_parentGroup == null)

                                return;



                            if (m_parentGroup.Scene == null)

                                return;



                            m_parentGroup.Scene.EventManager.TriggerScriptLandCollidingEnd(this, LandEndCollidingMessage);



                            if ((this.UUID != this.ParentGroup.RootPart.UUID))

                            {

                                const int PASS_IF_NOT_HANDLED = 0;

                                const int PASS_ALWAYS = 1;

                                const int PASS_NEVER = 2;

                                if (this.PassCollisions == PASS_NEVER)

                                {

                                }

                                if (this.PassCollisions == PASS_ALWAYS)

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptLandCollidingEnd(

                                        this.ParentGroup.RootPart, LandEndCollidingMessage);

                                }

                                else if (((this.ScriptEvents & scriptEvents.land_collision_end) == 0) &&

                                         this.PassCollisions == PASS_IF_NOT_HANDLED)

                                    //If no event in this prim, pass to parent

                                {

                                    m_parentGroup.Scene.EventManager.TriggerScriptLandCollidingEnd(

                                        this.ParentGroup.RootPart, LandEndCollidingMessage);

                                }

                            }

                        }

                    }

                }

            }

        }



        public void PhysicsOutOfBounds(Vector3 pos)

        {

            MainConsole.Instance.Error("[Physics]: Physical object " + Name + ", localID " + LocalId +

                                       " went out of bounds at " + pos + ".  Stopping at " + AbsolutePosition +

                                       " and making non-physical.");

            lock (ParentGroup.Scene.PhysicsReturns)

            {

                if (!ParentGroup.Scene.PhysicsReturns.Contains(ParentGroup))

                    ParentGroup.Scene.PhysicsReturns.Add(ParentGroup);

            }

        }



        public virtual void PhysicsRequestingTerseUpdate()

        {

            if (PhysActor != null)

            {

//                Vector3 newpos = new Vector3(PhysActor.Position.GetBytes(), 0);

                m_parentGroup.SetAbsolutePosition(false, PhysActor.Position);

                //m_parentGroup.RootPart.m_groupPosition = newpos;

            }

            ScheduleUpdate(PrimUpdateFlags.TerseUpdate);

        }



        public void RemoveScriptEvents(UUID scriptid)

        {

            lock (m_scriptEvents)

            {

                if (m_scriptEvents.ContainsKey(scriptid))

                {

                    scriptEvents oldparts = scriptEvents.None;

                    oldparts = m_scriptEvents[scriptid];



                    // remove values from aggregated script events

                    AggregateScriptEvents &= ~oldparts;

                    m_scriptEvents.Remove(scriptid);

                    aggregateScriptEvents();

                }

            }

        }



        /// <summary>

        ///     Resize this part.

        /// </summary>

        /// <param name="scale"></param>

        public void Resize(Vector3 scale)

        {

            Scale = scale;



            ParentGroup.HasGroupChanged = true;

            ScheduleUpdate(PrimUpdateFlags.Shape);

        }



        public void stopLookAt()

        {

            APIDEnabled = false;

        }



        /// <summary>

        ///     Check to see whether the given flags make it a terse update

        /// </summary>

        /// <param name="flags"></param>

        /// <returns></returns>

        private bool IsTerse(PrimUpdateFlags flags)

        {

            return flags.HasFlag((PrimUpdateFlags.TerseUpdate))

                   && !flags.HasFlag((PrimUpdateFlags.AttachmentPoint | PrimUpdateFlags.ClickAction |

                                      PrimUpdateFlags.CollisionPlane | PrimUpdateFlags.ExtraData |

                                      PrimUpdateFlags.FindBest | PrimUpdateFlags.FullUpdate |

                                      PrimUpdateFlags.Joint | PrimUpdateFlags.Material | PrimUpdateFlags.MediaURL |

                                      PrimUpdateFlags.NameValue |

                                      PrimUpdateFlags.ParentID | PrimUpdateFlags.Particles | PrimUpdateFlags.PrimData |

                                      PrimUpdateFlags.PrimFlags |

                                      PrimUpdateFlags.ScratchPad | PrimUpdateFlags.Shape | PrimUpdateFlags.Sound |

                                      PrimUpdateFlags.Text |

                                      PrimUpdateFlags.TextureAnim | PrimUpdateFlags.Textures)) &&

                   !flags.HasFlag(PrimUpdateFlags.ForcedFullUpdate);

        }



        public void SetAttachmentPoint(int AttachmentPoint)

        {

            //Update the saved if needed

            if (AttachmentPoint == 0 && this.AttachmentPoint != 0)

            {

                this.SavedAttachedPos = this.AttachedPos;

                this.SavedAttachmentPoint = this.AttachmentPoint;

            }



            this.AttachmentPoint = AttachmentPoint;



            IsAttachment = AttachmentPoint != 0;



            // save the attachment point.

            //if (AttachmentPoint != 0)

            //{

            m_shape.State = (byte) AttachmentPoint;

            //}

        }



        public void SetPhysActorCameraPos(Quaternion CameraRotation)

        {

            if (PhysActor != null)

            {

                PhysActor.SetCameraPos(CameraRotation);

            }

        }



        /// <summary>

        ///     Tell us if this object has cut, hollow, dimple, and other factors affecting the number of faces

        /// </summary>

        /// <param name="primType"></param>

        /// <param name="shape"></param>

        /// <param name="hasCut"></param>

        /// <param name="hasHollow"></param>

        /// <param name="hasDimple"></param>

        /// <param name="hasProfileCut"></param>

        protected static void HasCutHollowDimpleProfileCut(PrimType primType, PrimitiveBaseShape shape, out bool hasCut,

                                                           out bool hasHollow,

                                                           out bool hasDimple, out bool hasProfileCut)

        {

            if (primType == PrimType.BOX

                ||

                primType == PrimType.CYLINDER

                ||

                primType == PrimType.PRISM)



                hasCut = (shape.ProfileBegin > 0) || (shape.ProfileEnd > 0);

            else

                hasCut = (shape.PathBegin > 0) || (shape.PathEnd > 0);



            hasHollow = shape.ProfileHollow > 0;

            hasDimple = (shape.ProfileBegin > 0) || (shape.ProfileEnd > 0); // taken from llSetPrimitiveParms

            hasProfileCut = hasDimple; // is it the same thing?

        }



        public void SetGroup(UUID groupID)

        {

            _groupID = groupID;

        }



        public void SetPhysicsAxisRotation()

        {

            if (PhysActor != null)

                PhysActor.LockAngularMotion(RotationAxis);

        }



        /// <summary>

        ///     Serialize this part to xml.

        /// </summary>

        /// <param name="xmlWriter"></param>

        public void ToXml(XmlTextWriter xmlWriter)

        {

            SceneEntitySerializer.SceneObjectSerializer.ToXmlFormat(this, xmlWriter);

        }



        public void UpdateExtraParam(ushort type, bool inUse, byte[] data)

        {

            m_shape.ReadInUpdateExtraParam(type, inUse, data);



            if (type == 0x30)

            {

                if (m_shape.SculptEntry && m_shape.SculptTexture != UUID.Zero)

                    m_parentGroup.Scene.AssetService.Get(m_shape.SculptTexture.ToString(), true, AssetReceived);

            }

            ValidpartOOB = false;

            ParentGroup.HasGroupChanged = true;

            ScheduleUpdate(PrimUpdateFlags.Shape);

        }



        public void UpdateGroupPosition(Vector3 pos)

        {

            if ((pos.X != GroupPosition.X) ||

                (pos.Y != GroupPosition.Y) ||

                (pos.Z != GroupPosition.Z))

            {

//                Vector3 newPos = new Vector3(pos.X, pos.Y, pos.Z);

                FixGroupPosition(pos, false);

                ScheduleTerseUpdate();

            }

        }



        public void UpdatePermissions(UUID AgentID, byte field, uint localID, uint mask, byte addRemTF)

        {

            bool set = addRemTF == 1;

            bool god = m_parentGroup.Scene.Permissions.IsGod(AgentID);



            uint baseMask = _baseMask;

            if (god)

                baseMask = 0x7ffffff0;



            // Are we the owner?

            if (m_parentGroup.Scene.Permissions.CanEditObject(this.UUID, AgentID))

            {

                uint exportPermission = (1 << 30);

                if ((mask & exportPermission) == exportPermission)

                {

                    //Only the creator can set export permissions

                    if (CreatorID != AgentID)

                        mask &= exportPermission;

                }



                switch (field)

                {

                    case 1:

                        if (god)

                        {

                            _baseMask = ApplyMask(_baseMask, set, mask);

                            Inventory.ApplyGodPermissions(_baseMask);

                        }



                        break;

                    case 2:

                        _ownerMask = ApplyMask(_ownerMask, set, mask) &

                                     baseMask;

                        break;

                    case 4:

                        _groupMask = ApplyMask(_groupMask, set, mask) &

                                     baseMask;

                        break;

                    case 8:

                        _everyoneMask = ApplyMask(_everyoneMask, set, mask) &

                                        baseMask;

                        break;

                    case 16:

                        _nextOwnerMask = ApplyMask(_nextOwnerMask, set, mask) &

                                         baseMask;

                        // Prevent the client from creating no mod, no copy

                        // objects

                        if ((_nextOwnerMask & (uint) PermissionMask.Copy) == 0)

                            _nextOwnerMask |= (uint) PermissionMask.Transfer;



                        _nextOwnerMask |= (uint) PermissionMask.Move;



                        break;

                }

                ParentGroup.ScheduleGroupUpdate(PrimUpdateFlags.PrimFlags);



                SendObjectPropertiesToClient(AgentID);

            }

        }



        /// <summary>

        ///     Update the texture entry for this part.

        /// </summary>

        /// <param name="textureEntry"></param>

        /// <param name="sendChangedEvent"></param>

        public void UpdateTextureEntry(byte[] textureEntry, bool sendChangedEvent)

        {

            bool same = true;

            byte[] old = m_shape.TextureEntry;

            if (old.Length == textureEntry.Length)

            {

                if (textureEntry.Where((t, i) => old[i] != t).Any())

                {

                    same = false;

                }

            }

            else

                same = false;

            if (same)

                return;

            Primitive.TextureEntry oldEntry = m_shape.Textures;

            m_shape.TextureEntry = textureEntry;

            bool textureChanged = false;

            bool colorChanged = false;

            if (m_shape.Textures.DefaultTexture.RGBA.A != oldEntry.DefaultTexture.RGBA.A ||

                m_shape.Textures.DefaultTexture.RGBA.R != oldEntry.DefaultTexture.RGBA.R ||

                m_shape.Textures.DefaultTexture.RGBA.G != oldEntry.DefaultTexture.RGBA.G ||

                m_shape.Textures.DefaultTexture.RGBA.B != oldEntry.DefaultTexture.RGBA.B)

            {

                colorChanged = true;

            }

            if (m_shape.Textures.DefaultTexture.TextureID != oldEntry.DefaultTexture.TextureID)

            {

                textureChanged = true;

            }



            if (!(colorChanged && textureChanged)) // if both already changed so don't bother checking further

            {

                for (int i = 0; i < GetNumberOfSides(); i++)

                {

                    if (m_shape.Textures.FaceTextures[i] != null &&

                        oldEntry.FaceTextures[i] != null)

                    {

                        if (m_shape.Textures.FaceTextures[i].RGBA.A != oldEntry.FaceTextures[i].RGBA.A ||

                            m_shape.Textures.FaceTextures[i].RGBA.R != oldEntry.FaceTextures[i].RGBA.R ||

                            m_shape.Textures.FaceTextures[i].RGBA.G != oldEntry.FaceTextures[i].RGBA.G ||

                            m_shape.Textures.FaceTextures[i].RGBA.B != oldEntry.FaceTextures[i].RGBA.B)

                        {

                            colorChanged = true;

                        }

                        if (m_shape.Textures.FaceTextures[i].TextureID != oldEntry.FaceTextures[i].TextureID)

                        {

                            textureChanged = true;

                        }

                    }

                }

            }



            if (colorChanged && sendChangedEvent) TriggerScriptChangedEvent(Changed.COLOR);

            if (textureChanged && sendChangedEvent) TriggerScriptChangedEvent(Changed.TEXTURE);

            ParentGroup.HasGroupChanged = true;

            ScheduleUpdate(PrimUpdateFlags.FullUpdate);

        }



        public override string ToString()

        {

            return String.Format("{0} {1} linkNum {3} (parent {2}))", Name, UUID, ParentGroup, LinkNum);

        }



        #endregion Public Methods



        public void ApplyPermissions(uint permissions)

        {

            _ownerMask = permissions;

        }



        private void UpdateLookAt()

        {

            try

            {

                //PID movement

                // Has to be physical (works with phantom too)

                if (PIDActive && ((Flags & PrimFlags.Physics) != 0))

                {

                    Vector3 _target_velocity =

                        new Vector3(

                            (PIDTarget.X - m_initialPIDLocation.X)*(PIDTau),

                            (PIDTarget.Y - m_initialPIDLocation.Y)*(PIDTau),

                            (PIDTarget.Z - m_initialPIDLocation.Z)*(PIDTau)

                            );

                    if (PIDTarget.ApproxEquals(AbsolutePosition, 0.1f))

                    {

                        ParentGroup.Velocity = Vector3.Zero;

                        ParentGroup.SetAbsolutePosition(true, PIDTarget);

                        this.ScheduleTerseUpdate();

                        //End the movement

                        //SetMoveToTarget(false, Vector3.Zero, 0);

                    }

                    else

                    {

                        //ParentGroup.SetAbsolutePosition(true, ParentGroup.AbsolutePosition + _target_velocity);

                        Velocity = _target_velocity;

                        this.ScheduleTerseUpdate();

                    }

                }

                else if (PIDHoverActive)

                {

                    Vector3 _target_velocity;

                    ITerrainChannel terrain = ParentGroup.Scene.RequestModuleInterface<ITerrainChannel>();

                    if (terrain == null)

                        return;

                    float groundHeight =

                        terrain[(int) ParentGroup.AbsolutePosition.X, (int) ParentGroup.AbsolutePosition.Y];

                    switch (PIDHoverType)

                    {

                        case PIDHoverType.Ground:

                            _target_velocity =

                                new Vector3(

                                    0, 0, ((groundHeight + PIDHoverHeight) - m_initialPIDLocation.Z)*(PIDTau)

                                    );

                            break;

                        case PIDHoverType.GroundAndWater:

                            if (ParentGroup.Scene.RegionInfo.RegionSettings.WaterHeight < groundHeight)

                                groundHeight = (float) ParentGroup.Scene.RegionInfo.RegionSettings.WaterHeight;

                            _target_velocity =

                                new Vector3(

                                    0, 0, ((groundHeight + PIDHoverHeight) - m_initialPIDLocation.Z)*(PIDTau)

                                    );

                            break;

                        default:

                            return;

                    }

                    Velocity = _target_velocity;

                    this.ScheduleTerseUpdate();

                }

                if (APIDEnabled)

                {

                    if (APIDIterations <= 1)

                    {

                        UpdateRotation(APIDTarget);

                        APIDTarget = Quaternion.Identity;

                        return;

                    }



                    Quaternion rot = Quaternion.Slerp(GetRotationOffset(), APIDTarget, 1.0f/(float) APIDIterations);

                    UpdateRotation(rot);



                    APIDIterations--;



                    // This ensures that we'll check this object on the next iteration

                    ParentGroup.ScheduleGroupTerseUpdate();

                }

            }

            catch (Exception ex)

            {

                MainConsole.Instance.Error("[Physics] " + ex);

            }

        }



        internal void TriggerScriptMovingStartEvent()

        {

            if ((AggregateScriptEvents & scriptEvents.moving_start) == 0)

                return;

            if (m_parentGroup != null && m_parentGroup.Scene != null && m_parentGroup.Scene.EventManager != null)

                m_parentGroup.Scene.EventManager.TriggerOnScriptMovingStartEvent(this);

        }



        internal void TriggerScriptMovingEndEvent()

        {

            if ((AggregateScriptEvents & scriptEvents.moving_end) == 0)

                return;

            if (m_parentGroup != null && m_parentGroup.Scene != null && m_parentGroup.Scene.EventManager != null)

                m_parentGroup.Scene.EventManager.TriggerOnScriptMovingEndEvent(this);

        }

    }

}