3 files changed, 62 insertions, 16 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs b/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
index 33041e9..ad421ee 100644
--- a/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
+++ b/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
@@ -87,7 +87,7 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             {
                 if (m_defaultAnimation.AnimID == animID)
                 {
-                    ResetDefaultAnimation();
+                    m_defaultAnimation = new OpenSim.Framework.Animation(UUID.Zero, 1, UUID.Zero);
                 }
                 else if (HasAnimation(animID))
                 {
@@ -149,19 +149,26 @@ namespace OpenSim.Region.Framework.Scenes.Animation
         {
             lock (m_animations)
             {
-                animIDs = new UUID[m_animations.Count + 1];
-                sequenceNums = new int[m_animations.Count + 1];
-                objectIDs = new UUID[m_animations.Count + 1];
+                int defaultSize = 0;
+                if (m_defaultAnimation.AnimID != UUID.Zero)
+                    defaultSize++;
 
-                animIDs[0] = m_defaultAnimation.AnimID;
-                sequenceNums[0] = m_defaultAnimation.SequenceNum;
-                objectIDs[0] = m_defaultAnimation.ObjectID;
+                animIDs = new UUID[m_animations.Count + defaultSize];
+                sequenceNums = new int[m_animations.Count + defaultSize];
+                objectIDs = new UUID[m_animations.Count + defaultSize];
+
+                if (m_defaultAnimation.AnimID != UUID.Zero)
+                {
+                    animIDs[0] = m_defaultAnimation.AnimID;
+                    sequenceNums[0] = m_defaultAnimation.SequenceNum;
+                    objectIDs[0] = m_defaultAnimation.ObjectID;
+                }
 
                 for (int i = 0; i < m_animations.Count; ++i)
                 {
-                    animIDs[i + 1] = m_animations[i].AnimID;
-                    sequenceNums[i + 1] = m_animations[i].SequenceNum;
-                    objectIDs[i + 1] = m_animations[i].ObjectID;
+                    animIDs[i + defaultSize] = m_animations[i].AnimID;
+                    sequenceNums[i + defaultSize] = m_animations[i].SequenceNum;
+                    objectIDs[i + defaultSize] = m_animations[i].ObjectID;
                 }
             }
         }
diff --git a/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs b/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
index 50a176b..9458079 100644
--- a/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
+++ b/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
@@ -424,13 +424,19 @@ namespace OpenSim.Region.Framework.Scenes.Animation
         {
             lock (m_animations)
             {
-                CurrentMovementAnimation = DetermineMovementAnimation();
+                string newMovementAnimation = DetermineMovementAnimation();
+                if (CurrentMovementAnimation != newMovementAnimation)
+                {
+                    CurrentMovementAnimation = DetermineMovementAnimation();
 
-//                m_log.DebugFormat(
-//                    "[SCENE PRESENCE ANIMATOR]: Determined animation {0} for {1} in UpdateMovementAnimations()",
-//                    CurrentMovementAnimation, m_scenePresence.Name);
+//                    m_log.DebugFormat(
+//                        "[SCENE PRESENCE ANIMATOR]: Determined animation {0} for {1} in UpdateMovementAnimations()",
+//                        CurrentMovementAnimation, m_scenePresence.Name);
 
-                TrySetMovementAnimation(CurrentMovementAnimation);
+                    // Only set it if it's actually changed, give a script
+                    // a chance to stop a default animation
+                    TrySetMovementAnimation(CurrentMovementAnimation);
+                }
             }
         }
 
@@ -552,4 +558,4 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             SendAnimPack(animIDs, sequenceNums, objectIDs);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
index 756b1f4..0d359b9 100644
--- a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
+++ b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
@@ -47,6 +47,7 @@ namespace OpenSim.Region.Framework.Scenes
             = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
 
         public const string LastReportedObjectUpdateStatName = "LastReportedObjectUpdates";
+        public const string SlowFramesStatName = "SlowFrames";
 
         public delegate void SendStatResult(SimStats stats);
 
@@ -129,6 +130,16 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
+        /// Number of frames that have taken longer to process than Scene.MIN_FRAME_TIME
+        /// </summary>
+        public Stat SlowFramesStat { get; private set; }
+
+        /// <summary>
+        /// The threshold at which we log a slow frame.
+        /// </summary>
+        public int SlowFramesStatReportThreshold { get; private set; }
+
+        /// <summary>
         /// Extra sim statistics that are used by monitors but not sent to the client.
         /// </summary>
         /// <value>
@@ -226,6 +237,22 @@ namespace OpenSim.Region.Framework.Scenes
 
             if (StatsManager.SimExtraStats != null)
                 OnSendStatsResult += StatsManager.SimExtraStats.ReceiveClassicSimStatsPacket;
+
+            /// At the moment, we'll only report if a frame is over 120% of target, since commonly frames are a bit
+            /// longer than ideal (which in itself is a concern).
+            SlowFramesStatReportThreshold = (int)Math.Ceiling(m_scene.MinFrameTime * 1000 * 1.2);
+
+            SlowFramesStat
+                = new Stat(
+                    "SlowFrames",
+                    "Slow Frames",
+                    " frames",
+                    "scene",
+                    m_scene.Name,
+                    StatVerbosity.Info,
+                    "Number of frames where frame time has been significantly longer than the desired frame time.");
+
+            StatsManager.RegisterStat(SlowFramesStat);
         }
 
         public void Close()
@@ -443,6 +470,7 @@ namespace OpenSim.Region.Framework.Scenes
                     lock (m_lastReportedExtraSimStats)
                     {
                         m_lastReportedExtraSimStats[LastReportedObjectUpdateStatName] = m_objectUpdates / m_statsUpdateFactor;
+                        m_lastReportedExtraSimStats[SlowFramesStat.ShortName] = (float)SlowFramesStat.Value;
 
                         Dictionary<string, float> physicsStats = m_scene.PhysicsScene.GetStats();
         
@@ -563,6 +591,11 @@ namespace OpenSim.Region.Framework.Scenes
         public void addFrameMS(int ms)
         {
             m_frameMS += ms;
+
+            // At the moment, we'll only report if a frame is over 120% of target, since commonly frames are a bit
+            // longer than ideal due to the inaccuracy of the Sleep in Scene.Update() (which in itself is a concern).
+            if (ms > SlowFramesStatReportThreshold)
+                SlowFramesStat.Value++;
         }
 
         public void addNetMS(int ms)