We have a main update loop!

src/world/Avatar.cs

@@ -20,6 +20,10 @@ namespace OpenSim.world
 		SetupTemplate("avatar-template.dat");
 	}
 
+	public void update() {
+		base.update();
+	}
+
 	private void SetupTemplate(string name)
 		{
 			

src/world/Entity.cs

@@ -14,6 +14,7 @@ namespace OpenSim.world
         protected Quaternion rotation;
         protected string name;
         protected List<Entity> children;
+	public bool needupdate;
 
         public Entity()
         {
@@ -29,7 +30,8 @@ namespace OpenSim.world
             // Do any per-frame updates needed that are applicable to every type of entity
             foreach (Entity child in children)
             {
-                child.update();
+            	if(child.needupdate) 
+			child.update();
             }
         }
 

src/world/PhysicsEngine.cs

@@ -17,5 +17,7 @@ namespace OpenSim.world
 		Console.WriteLine("PhysicsEngine.cs:Startup() - DOING NOTHING, DUMMY FUNCTION!");
 	}
  
+	public void DoStuff(World simworld) {
+	}
     }
 }

src/world/World.cs

@@ -39,13 +39,17 @@ namespace OpenSim.world
 	}
 	
 	public void DoStuff() {
-		Thread.Sleep(1000);
+		physics.DoStuff(this);
+		this.Update();
 	}
 
 	public void Update() {
             foreach (libsecondlife.LLUUID UUID in Entities.Keys)
             {
-                Entities[UUID].update();
+		if(Entities[UUID].needupdate) {
+			Entities[UUID].update();
+		}
+		
             }
         }