* Fleshes more of NPCModule out.

* Implements some OSSL commands:
        key osNpcCreate(string user, string name, vector position, key cloneFrom);
        void osNpcMoveTo(key npc, vector position);
        void osNpcSay(key npc, string message);
        void osNpcRemove(key npc);
* Untested. Requires ThreatLevel.High.

OpenSim/Region/CoreModules/Avatar/NPC/INPCModule.cs

@@ -0,0 +1,13 @@
+using OpenMetaverse;
+using OpenSim.Region.Framework.Scenes;
+
+namespace OpenSim.Region.CoreModules.Avatar.NPC
+{
+    public interface INPCModule
+    {
+        UUID CreateNPC(string firstname, string lastname, Vector3 position, Scene scene, UUID cloneAppearanceFrom);
+        void Autopilot(UUID agentID, Scene scene, Vector3 pos);
+        void Say(UUID agentID, Scene scene, string text);
+        void DeleteNPC(UUID agentID, Scene scene);
+    }
+}

OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs

@@ -30,18 +30,11 @@ using OpenMetaverse;
 using Nini.Config;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.CoreModules.Avatar.NPC;
 using OpenSim.Framework;
 
 namespace OpenSim.Region.OptionalModules.World.NPC
 {
-    public interface INPCModule
-    {
-        UUID CreateNPC(string firstname, string lastname,Vector3 position, Scene scene, UUID cloneAppearanceFrom);
-        void Autopilot(UUID agentID, Scene scene, Vector3 pos);
-        void Say(UUID agentID, Scene scene, string text);
-        void DeleteNPC(UUID agentID, Scene scene);
-    }
-
     public class NPCModule : IRegionModule, INPCModule
     {
         // private const bool m_enabled = false;
@@ -73,20 +66,33 @@ namespace OpenSim.Region.OptionalModules.World.NPC
         }
 
         public void Autopilot(UUID agentID, Scene scene, Vector3 pos)
+        {
+            lock (m_avatars)
+                if (m_avatars.ContainsKey(agentID))
                 {
                     ScenePresence sp;
                     scene.TryGetAvatar(agentID, out sp);
                     sp.DoAutoPilot(0, pos, m_avatars[agentID]);
                 }
+        }
 
         public void Say(UUID agentID, Scene scene, string text)
+        {
+            lock (m_avatars)
+                if (m_avatars.ContainsKey(agentID))
                 {
                     m_avatars[agentID].Say(text);
                 }
+        }
 
         public void DeleteNPC(UUID agentID, Scene scene)
+        {
+            lock(m_avatars)
+                if (m_avatars.ContainsKey(agentID))
                 {
                     scene.RemoveClient(agentID);
+                    m_avatars.Remove(agentID);
+                }
         }
 
 

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs

@@ -37,6 +37,7 @@ using OpenSim;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications.Cache;
 using OpenSim.Framework.Console;
+using OpenSim.Region.CoreModules.Avatar.NPC;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Region.Framework.Scenes.Hypergrid;
@@ -1762,5 +1763,56 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return retVal;
         }
 
+        public LSL_Key osNpcCreate(string firstname, string lastname, LSL_Vector position, LSL_Key cloneFrom)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osNpcCreate");
+
+            INPCModule module = World.RequestModuleInterface<INPCModule>();
+            if (module != null)
+            {
+                UUID x = module.CreateNPC(firstname,
+                                          lastname,
+                                          new Vector3((float) position.x, (float) position.y, (float) position.z),
+                                          World,
+                                          new UUID(cloneFrom));
+
+                return new LSL_Key(x.ToString());
+            }
+            return new LSL_Key(UUID.Zero.ToString());
+        }
+
+        public void osNpcMoveTo(LSL_Key npc, LSL_Vector position)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osNpcMoveTo");
+
+            INPCModule module = World.RequestModuleInterface<INPCModule>();
+            if (module != null)
+            {
+                Vector3 pos = new Vector3((float) position.x, (float) position.y, (float) position.z);
+                module.Autopilot(new UUID(npc.m_string), World, pos);
+            }
+        }
+
+        public void osNpcSay(LSL_Key npc, string message)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osNpcSay");
+
+            INPCModule module = World.RequestModuleInterface<INPCModule>();
+            if (module != null)
+            {
+                module.Say(new UUID(npc.m_string), World, message);
+            }
+        }
+
+        public void osNpcRemove(LSL_Key npc)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osNpcRemove");
+
+            INPCModule module = World.RequestModuleInterface<INPCModule>();
+            if (module != null)
+            {
+                module.DeleteNPC(new UUID(npc.m_string), World);
+            }
+        }
     }
 }

OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs

@@ -149,5 +149,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         
         LSL_List osGetLinkPrimitiveParams(int linknumber, LSL_List rules);
 
+
+        key osNpcCreate(string user, string name, vector position, key cloneFrom);
+        void osNpcMoveTo(key npc, vector position);
+        void osNpcSay(key npc, string message);
+        void osNpcRemove(key npc);
+
     }
 }