Continued work on layout graph

src/modules/stream/ui/building_layout_graph.h

@@ -0,0 +1,35 @@
+#include <core/os/memory.h>
+#include <core/io/config_file.h>
+class BuildingLayoutGraph {
+	static BuildingLayoutGraph *singleton;
+
+	BuildingLayoutGraph();
+
+	ConfigFile config;
+	Array public_rooms;
+	Array private_rooms;
+
+	flecs::entity create_graph_entity(const String &base_path,
+					  const String &entity_type);
+
+public:
+	virtual ~BuildingLayoutGraph();
+	static BuildingLayoutGraph *get_singleton()
+	{
+		if (!singleton)
+			singleton = memnew(BuildingLayoutGraph());
+		return singleton;
+	}
+	static void cleanup()
+	{
+		memdelete(singleton);
+		singleton = nullptr;
+	}
+	void get_room_data(int id, Array &result);
+	const Array &get_private_rooms() const;
+	const Array &get_public_rooms() const;
+	void create_zone(const String &base_path, int zone_type);
+	void create_unit(const String &base_path);
+	void create_room(const String &base_path, int id);
+	void destroy_graph_entity(const String &path);
+};