mantis 8253: try to recover information about takecontrols pass=false controls on crossings, also tell viewers about them. this may still not be correct. Use of multiple TakeControls on same avatar can still give unpredictable results (also on normal operation). In same cases last executed my override previus or not. Also change agent updates wait code

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -457,6 +457,9 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         private object m_originRegionIDAccessLock = new object();
 
+
+        private AutoResetEvent m_updateAgentReceivedAfterTransferEvent = new AutoResetEvent(false);
+
         /// <summary>
         /// Used by the entity transfer module to signal when the presence should not be closed because a subsequent
         /// teleport is reusing the connection.
@@ -1950,30 +1953,32 @@ namespace OpenSim.Region.Framework.Scenes
             // (which triggers Scene.IncomingUpdateChildAgent(AgentData cAgentData) here in the destination,
             // m_originRegionID is UUID.Zero; after, it's non-Zero.  The CompleteMovement sequence initiated from the
             // viewer (in turn triggered by the source region sending it a TeleportFinish event) waits until it's non-zero
-//            m_updateAgentReceivedAfterTransferEvent.WaitOne(10000);
-            int count = 50;
-            UUID originID = UUID.Zero;
 
-            lock (m_originRegionIDAccessLock)
+            try
-                originID = m_originRegionID;
-
-            while (originID.Equals(UUID.Zero) && count-- > 0)
             {
-                lock (m_originRegionIDAccessLock)
+                if(m_updateAgentReceivedAfterTransferEvent.WaitOne(10000))
-                    originID = m_originRegionID;
+                {
+                    UUID originID = UUID.Zero;
 
-                m_log.DebugFormat("[SCENE PRESENCE]: Agent {0} waiting for update in {1}", client.Name, Scene.Name);
+                    lock (m_originRegionIDAccessLock)
-                Thread.Sleep(200);
+                        originID = m_originRegionID;
+                    if (originID.Equals(UUID.Zero))
+                    {
+                        // Movement into region will fail
+                        m_log.WarnFormat("[SCENE PRESENCE]: Update agent {0} at {1} got invalid origin region id ", client.Name, Scene.Name);
+                        return false;
+                    }
+                    return true;
+               }
+               else
+               {
+                   m_log.WarnFormat("[SCENE PRESENCE]: Update agent {0} at {1} did not receive agent update ", client.Name, Scene.Name);
+                   return false;
+               }
             }
+            catch { }
 
-            if (originID.Equals(UUID.Zero))
+            return false;
-            {
-                // Movement into region will fail
-                m_log.WarnFormat("[SCENE PRESENCE]: Update agent {0} never arrived in {1}", client.Name, Scene.Name);
-                return false;
-            }
-
-            return true;
         }
 
         public void RotateToLookAt(Vector3 lookAt)
@@ -2283,6 +2288,13 @@ namespace OpenSim.Region.Framework.Scenes
                         }
                     }
 
+                    if(gotCrossUpdate)
+                    {
+                        if(IgnoredControls != ScriptControlled.CONTROL_ZERO)
+                            ControllingClient.SendTakeControls((int)IgnoredControls, false, true);
+                            
+                    }
+
                     m_log.DebugFormat("[CompleteMovement] attachments: {0}ms", Util.EnvironmentTickCountSubtract(ts));
                     if (openChildAgents)
                     {
@@ -4574,7 +4586,7 @@ namespace OpenSim.Region.Framework.Scenes
                 return;
 
             CopyFrom(cAgentData);
-
+            m_updateAgentReceivedAfterTransferEvent.Set();
         }
 
         private static Vector3 marker = new Vector3(-1f, -1f, -1f);
@@ -4787,6 +4799,10 @@ namespace OpenSim.Region.Framework.Scenes
                 AddToPhysicalScene(isFlying);
             }
 */
+
+            if (Scene.AttachmentsModule != null)
+                Scene.AttachmentsModule.CopyAttachments(cAgent, this);
+
             try
             {
                 lock (scriptedcontrols)
@@ -4794,6 +4810,7 @@ namespace OpenSim.Region.Framework.Scenes
                     if (cAgent.Controllers != null)
                     {
                         scriptedcontrols.Clear();
+                        IgnoredControls = ScriptControlled.CONTROL_ZERO;
 
                         foreach (ControllerData c in cAgent.Controllers)
                         {
@@ -4804,6 +4821,7 @@ namespace OpenSim.Region.Framework.Scenes
                             sc.eventControls = (ScriptControlled)c.EventControls;
 
                             scriptedcontrols[sc.itemID] = sc;
+                            IgnoredControls |= sc.ignoreControls; // this is not correct, aparently only last applied should count
                         }
                     }
                 }
@@ -4824,8 +4842,6 @@ namespace OpenSim.Region.Framework.Scenes
             if (cAgent.MotionState != 0)
                 Animator.currentControlState = (ScenePresenceAnimator.motionControlStates) cAgent.MotionState;
 
-            if (Scene.AttachmentsModule != null)
-                Scene.AttachmentsModule.CopyAttachments(cAgent, this);
 
             crossingFlags = cAgent.CrossingFlags;
             gotCrossUpdate = (crossingFlags != 0);
@@ -5108,6 +5124,8 @@ namespace OpenSim.Region.Framework.Scenes
             ControllingClient = null;
             LifecycleState = ScenePresenceState.Removed;
             IsDeleted = true;
+            m_updateAgentReceivedAfterTransferEvent.Dispose();
+            m_updateAgentReceivedAfterTransferEvent = null;
         }
 
         public void AddAttachment(SceneObjectGroup gobj)