Added code to probe 'interface'

luprex/cpp/world.hpp

@@ -7,6 +7,7 @@
 #include "idalloc.hpp"
 #include "animqueue.hpp"
 #include "source.hpp"
+#include "gui.hpp"
 #include <memory>
 #include <unordered_map>
 
@@ -106,6 +107,10 @@ public:
     //
     void tangible_del(int64_t id);
 
+    // Probe the 'interface' function of the specified sprite.
+    //
+    void update_gui(int64_t actor_id, int64_t place_id, Gui *gui);
+
     // fetch
     //
     // Given a lua state, fetch the world model associated with