Initial implementation of 'engio' finished

luprex/cpp/core/world.hpp

@@ -355,7 +355,7 @@ private:
 
     // Invoke a player method, used by the graphics engine to control the player.
     //
-    void invoke_player(int64_t actor_id, int64_t place_id, std::string_view datapack);
+    void invoke_engio(int64_t actor_id, int64_t place_id, std::string_view datapack);
 
     // Invoke a lua string.
     //