Start of trying to make Region/Scene more modular.

Added preliminary IRegionModule interface.
Also have a work in progress way of Modules registering optional API methods (kind of like Apache optional functions). But there must be a cleaner/nicer way in c# of doing these than the current way.
Added three work in progress modules: ChatModule (simple handles in world chat, but by moving this to a module, we could support other types of chat modules, ie like a irc - opensim bridge module. ) , AvatarProfilesModule and XferModule. 
Moved most of the code from  Scene.ModifyTerrain() into the BasicTerrain library, as the start of trying to make that more modular. 
Stopped Child agents showing up as part of the "show users" command.

1 files changed, 93 insertions, 0 deletions

diff --git a/OpenSim/Region/Environment/ModuleLoader.cs b/OpenSim/Region/Environment/ModuleLoader.cs
new file mode 100644
index 0000000..8e42d90
--- /dev/null
+++ b/OpenSim/Region/Environment/ModuleLoader.cs
@@ -0,0 +1,93 @@
+using System;

+using System.Collections.Generic;

+using System.Reflection;

+using System.Text;

+using OpenSim.Region.Environment.Scenes;

+using OpenSim.Region.Environment.Interfaces;

+using OpenSim.Region.Environment.Modules;

+

+namespace OpenSim.Region.Environment

+{

+    public class ModuleLoader

+    {

+

+        public Dictionary<string, Assembly> LoadedAssemblys = new Dictionary<string, Assembly>();

+

+        public ModuleLoader()

+        {

+

+        }

+

+        /// <summary>

+        /// Really just a test method for loading a set of currently internal modules

+        /// </summary>

+        /// <param name="scene"></param>

+        public void LoadInternalModules(Scene scene)

+        {

+            //Testing IRegionModule ideas 

+            XferModule xferManager = new XferModule();

+            xferManager.Initialise(scene);

+            scene.AddModule(xferManager.GetName(), xferManager);

+

+            ChatModule chatModule = new ChatModule();

+            chatModule.Initialise(scene);

+            scene.AddModule(chatModule.GetName(), chatModule);

+

+            AvatarProfilesModule avatarProfiles = new AvatarProfilesModule();

+            avatarProfiles.Initialise(scene);

+            scene.AddModule(avatarProfiles.GetName(), avatarProfiles);

+

+            // Post Initialise Modules

+            xferManager.PostInitialise();

+           // chatModule.PostInitialise();  //for now leave this disabled as it would start up a partially working irc bot

+            avatarProfiles.PostInitialise();

+        }

+

+        public void LoadModule(string dllName, string moduleName, Scene scene)

+        {

+            Assembly pluginAssembly = null;

+            if (LoadedAssemblys.ContainsKey(dllName))

+            {

+                pluginAssembly = LoadedAssemblys[dllName];

+            }

+            else

+            {

+                pluginAssembly = Assembly.LoadFrom(dllName);

+                this.LoadedAssemblys.Add(dllName, pluginAssembly);

+            }

+

+            IRegionModule module = null;

+            foreach (Type pluginType in pluginAssembly.GetTypes())

+            {

+                if (pluginType.IsPublic)

+                {

+                    if (!pluginType.IsAbstract)

+                    {

+                        Type typeInterface = pluginType.GetInterface("IRegionModule", true);

+

+                        if (typeInterface != null)

+                        {

+                            module = (IRegionModule)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));

+                            break;

+                        }

+                        typeInterface = null;

+                    }

+                }

+            }

+            pluginAssembly = null;

+

+            if (module.GetName() == moduleName)

+            {

+                module.Initialise(scene);

+                scene.AddModule(moduleName, module);

+                module.PostInitialise();  //shouldn't be done here

+            }

+

+        }

+

+        public void ClearCache()

+        {

+            this.LoadedAssemblys.Clear();

+        }

+    }

+}