From 592ff1288dd1fccc1d2efde90e94ca0ab4a57652 Mon Sep 17 00:00:00 2001
From: Tom Grimshaw <tom@meta7.com>
Date: Sat, 26 Jun 2010 18:51:19 -0700
Subject: [PATCH] Add a new global event : OnTerrainUpdate

---
 .../World/Terrain/TerrainModule.cs            |  2 ++
 .../Region/Framework/Scenes/EventManager.cs   | 24 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs b/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
index 1e7ea7bce6..0c2039354b 100644
--- a/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
+++ b/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
@@ -544,6 +544,8 @@ namespace OpenSim.Region.CoreModules.World.Terrain
                 m_scene.PhysicsScene.SetTerrain(m_channel.GetFloatsSerialised());
                 m_scene.SaveTerrain();
 
+                m_scene.EventManager.TriggerTerrainUpdate();
+
                 // Clients who look at the map will never see changes after they looked at the map, so i've commented this out.
                 //m_scene.CreateTerrainTexture(true);
             }
diff --git a/OpenSim/Region/Framework/Scenes/EventManager.cs b/OpenSim/Region/Framework/Scenes/EventManager.cs
index ef125cd357..0c9759d946 100644
--- a/OpenSim/Region/Framework/Scenes/EventManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EventManager.cs
@@ -55,8 +55,12 @@ namespace OpenSim.Region.Framework.Scenes
 
         public delegate void OnTerrainTickDelegate();
 
+        public delegate void OnTerrainUpdateDelegate();
+
         public event OnTerrainTickDelegate OnTerrainTick;
 
+        public event OnTerrainUpdateDelegate OnTerrainUpdate;
+
         public delegate void OnBackupDelegate(IRegionDataStore datastore, bool forceBackup);
 
         public event OnBackupDelegate OnBackup;
@@ -716,6 +720,26 @@ namespace OpenSim.Region.Framework.Scenes
                 }
             }
         }
+        public void TriggerTerrainUpdate()
+        {
+            OnTerrainUpdateDelegate handlerTerrainUpdate = OnTerrainUpdate;
+            if (handlerTerrainUpdate != null)
+            {
+                foreach (OnTerrainUpdateDelegate d in handlerTerrainUpdate.GetInvocationList())
+                {
+                    try
+                    {
+                        d();
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[EVENT MANAGER]: Delegate for TriggerTerrainUpdate failed - continuing.  {0} {1}",
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        }
 
         public void TriggerTerrainTick()
         {