From 134f86e8d5c414409631b25b8c6f0ee45fbd8631 Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Thu, 3 Nov 2016 21:44:39 +1000
Subject: Initial update to OpenSim 0.8.2.1 source code.

---
 .../Shared/Api/Implementation/Plugins/SensorRepeat.cs  | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

(limited to 'OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs')

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
index dd45406..64dc2e2 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
@@ -353,7 +353,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 // Position of a sensor in a child prim attached to an avatar
                 // will be still wrong. 
                 ScenePresence avatar = m_CmdManager.m_ScriptEngine.World.GetScenePresence(SensePoint.ParentGroup.AttachedAvatar);
-                q = avatar.Rotation * q;
+
+                // Don't proceed if the avatar for this attachment has since been removed from the scene.
+                if (avatar == null)
+                    return sensedEntities;
+
+                q = avatar.GetWorldRotation() * q;
             }
 
             LSL_Types.Quaternion r = new LSL_Types.Quaternion(q);
@@ -362,7 +367,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
 
             Vector3 ZeroVector = new Vector3(0, 0, 0);
 
-            bool nameSearch = (ts.name != null && ts.name != "");
+            bool nameSearch = !string.IsNullOrEmpty(ts.name);
 
             foreach (EntityBase ent in Entities)
             {
@@ -480,7 +485,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 // Position of a sensor in a child prim attached to an avatar
                 // will be still wrong. 
                 ScenePresence avatar = m_CmdManager.m_ScriptEngine.World.GetScenePresence(SensePoint.ParentGroup.AttachedAvatar);
-                q = avatar.Rotation * q;
+
+                // Don't proceed if the avatar for this attachment has since been removed from the scene.
+                if (avatar == null)
+                    return sensedEntities;
+
+                q = avatar.GetWorldRotation() * q;
             }
 
             LSL_Types.Quaternion r = new LSL_Types.Quaternion(q);
@@ -595,7 +605,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                     return sensedEntities;
                 senseEntity(sp);
             }
-            else if (ts.name != null && ts.name != "")
+            else if (!string.IsNullOrEmpty(ts.name))
             {
                 ScenePresence sp;
                 // Try lookup by name will return if/when found
-- 
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