A little cleanup, and some work on LpxClient

luprex/core/cpp/lpxclient.cpp

@@ -9,10 +9,10 @@
 class LpxClient : public DrivenEngine {
 public:
     using StringVec = LuaConsole::StringVec;
-    std::unique_ptr<World> world_;
+    UniqueWorld world_;
     int64_t actor_id_;
     InvocationQueue unack_;
-    Channel *channel_;
+    UniqueChannel channel_;
     LuaConsole console_;
     Gui gui_;
     int64_t gui_place_;
@@ -26,6 +26,18 @@ public:
 
 public:
     virtual void event_init(int argc, char *argv[]) {
+        // Create the world model.
+        world_.reset(new World(util::WORLD_TYPE_C_SYNC));
+
+        // This is a temporary actor that will be used only until the server sends
+        // us the first difference transmission.  We do this only to establish
+        // the invariant that there's always an actor.  When the first difference
+        // transmission arrives, this actor may be deleted, or it may just be
+        // ignored, at the server's discretion.
+        actor_id_ = world_->create_login_actor();
+
+        // Establish a connection to the server.
+        channel_ = new_outgoing_channel("localhost:8085");
     }
 
     virtual void event_update() {