/// <summary>
        ///     Move the given scene object into a new region depending on which region its absolute position has moved
        ///     into.
        ///     This method locates the new region handle and offsets the prim position for the new region
        /// </summary>
        /// <param name="attemptedPosition">the attempted out of region position of the scene object</param>
        /// <param name="grp">the scene object that we're crossing</param>
        /// <param name="destination"></param>
        public bool CrossGroupToNewRegion(ISceneEntity grp, Vector3 attemptedPosition, GridRegion destination)
        {
            if (grp == null)
                return false;
            if (grp.IsDeleted)
                return false;

            if (grp.Scene == null)
                return false;
            if (grp.RootChild.DIE_AT_EDGE)
            {
                // We remove the object here
                try
                {
                    IBackupModule backup = grp.Scene.RequestModuleInterface<IBackupModule>();
                    if (backup != null)
                        return backup.DeleteSceneObjects(new[] {grp}, true, true);
                }
                catch (Exception)
                {
                    MainConsole.Instance.Warn(
                        "[DATABASE]: exception when trying to remove the prim that crossed the border.");
                }
                return false;
            }

            if (grp.RootChild.RETURN_AT_EDGE)
            {
                // We remove the object here
                try
                {
                    List<ISceneEntity> objects = new List<ISceneEntity> {grp};
                    ILLClientInventory inventoryModule = grp.Scene.RequestModuleInterface<ILLClientInventory>();
                    if (inventoryModule != null)
                        return inventoryModule.ReturnObjects(objects.ToArray(), UUID.Zero);
                }
                catch (Exception)
                {
                    MainConsole.Instance.Warn(
                        "[SCENE]: exception when trying to return the prim that crossed the border.");
                }
                return false;
            }

            Vector3 oldGroupPosition = grp.RootChild.GroupPosition;
            // If we fail to cross the border, then reset the position of the scene object on that border.
            if (destination != null && !CrossPrimGroupIntoNewRegion(destination, grp, attemptedPosition))
            {
                grp.OffsetForNewRegion(oldGroupPosition);
                grp.ScheduleGroupUpdate(PrimUpdateFlags.ForcedFullUpdate);
                return false;
            }
            return true;
        }
        /// <summary>
        ///     Move the given scene object into a new region depending on which region its absolute position has moved
        ///     into.
        ///     This method locates the new region handle and offsets the prim position for the new region
        /// </summary>
        /// <param name="attemptedPosition">the attempted out of region position of the scene object</param>
        /// <param name="grp">the scene object that we're crossing</param>
        /// <param name="destination"></param>
        public bool CrossGroupToNewRegion(ISceneEntity grp, Vector3 attemptedPosition, GridRegion destination)
        {
            if (grp == null)
            {
                return(false);
            }
            if (grp.IsDeleted)
            {
                return(false);
            }

            if (grp.Scene == null)
            {
                return(false);
            }
            if (grp.RootChild.DIE_AT_EDGE)
            {
                // We remove the object here
                try {
                    IBackupModule backup = grp.Scene.RequestModuleInterface <IBackupModule> ();
                    if (backup != null)
                    {
                        return(backup.DeleteSceneObjects(new [] { grp }, true, true));
                    }
                } catch (Exception) {
                    MainConsole.Instance.Warn(
                        "[Database]: exception when trying to remove the prim that crossed the border.");
                }
                return(false);
            }

            if (grp.RootChild.RETURN_AT_EDGE)
            {
                // We remove the object here
                try {
                    List <ISceneEntity> objects = new List <ISceneEntity> {
                        grp
                    };
                    ILLClientInventory inventoryModule = grp.Scene.RequestModuleInterface <ILLClientInventory> ();
                    if (inventoryModule != null)
                    {
                        return(inventoryModule.ReturnObjects(objects.ToArray(), UUID.Zero));
                    }
                } catch (Exception) {
                    MainConsole.Instance.Warn(
                        "[Scene]: exception when trying to return the prim that crossed the border.");
                }
                return(false);
            }

            Vector3 oldGroupPosition = grp.RootChild.GroupPosition;

            // If we fail to cross the border, then reset the position of the scene object on that border.
            if (destination != null && !CrossPrimGroupIntoNewRegion(destination, grp, attemptedPosition))
            {
                grp.OffsetForNewRegion(oldGroupPosition);
                grp.ScheduleGroupUpdate(PrimUpdateFlags.ForcedFullUpdate);

                return(false);
            }
            return(true);
        }