Add EventManager events triggered when a SOP is added or removed

from the physical scene. Invocations added in SceneObjectPart.

OpenSim/Region/Framework/Scenes/EventManager.cs

@@ -790,6 +790,19 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="obj">The object being removed from the scene</param>
         public delegate void ObjectBeingRemovedFromScene(SceneObjectGroup obj);
 
+        /// <summary>
+        /// Triggered when an object is placed into the physical scene (PhysicsActor created).
+        /// </summary>
+        public event Action<SceneObjectPart> OnObjectAddedToPhysicalScene;
+        /// <summary>
+        /// Triggered when an object is removed from the physical scene (PhysicsActor destroyed).
+        /// </summary>
+        /// <remarks>
+        /// Note: this is triggered just before the PhysicsActor is removed from the
+        /// physics engine so the receiver can do any necessary cleanup before its destruction.
+        /// </remarks>
+        public event Action<SceneObjectPart> OnObjectRemovedFromPhysicalScene;
+
         /// <summary>
         /// Triggered when an object is removed from the scene.
         /// </summary>
@@ -1516,6 +1529,48 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        public void TriggerObjectAddedToPhysicalScene(SceneObjectPart obj)
+        {
+            Action<SceneObjectPart> handler = OnObjectAddedToPhysicalScene;
+            if (handler != null)
+            {
+                foreach (Action<SceneObjectPart> d in handler.GetInvocationList())
+                {
+                    try
+                    {
+                        d(obj);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[EVENT MANAGER]: Delegate for TriggerObjectAddedToPhysicalScene failed - continuing.  {0} {1}", 
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        }
+
+        public void TriggerObjectRemovedFromPhysicalScene(SceneObjectPart obj)
+        {
+            Action<SceneObjectPart> handler = OnObjectRemovedFromPhysicalScene;
+            if (handler != null)
+            {
+                foreach (Action<SceneObjectPart> d in handler.GetInvocationList())
+                {
+                    try
+                    {
+                        d(obj);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[EVENT MANAGER]: Delegate for TriggerObjectRemovedFromPhysicalScene failed - continuing.  {0} {1}", 
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        }
+
         public void TriggerShutdown()
         {
             Action handlerShutdown = OnShutdown;

OpenSim/Region/Framework/Scenes/SceneObjectPart.cs

@@ -4316,6 +4316,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
 
             PhysActor = pa;
+            ParentGroup.Scene.EventManager.TriggerObjectAddedToPhysicalScene(this);
         }
 
         /// <summary>
@@ -4328,6 +4329,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// </remarks>
         public void RemoveFromPhysics()
         {
+            ParentGroup.Scene.EventManager.TriggerObjectRemovedFromPhysicalScene(this);
             ParentGroup.Scene.PhysicsScene.RemovePrim(PhysActor);
             PhysActor = null;
         }