Working on navigation system

src/Location.h

@@ -73,11 +73,24 @@ namespace ZL
 		TeleportZone* targetTeleportZone = nullptr;
 		std::function<void(const std::string&, const Eigen::Vector3f&, float)> onTeleport;
 
-#ifdef SHOW_PATH
-		std::vector<VertexRenderStruct> debugNavMeshes;
-		void buildDebugNavMeshes();
-		void drawDebugNavigation();
-#endif
+		// Navigation editor — toggle with 'N', save with 'B', right-click to finalize polygon
+		bool navigationEditorMode = false;
+
+		std::vector<Eigen::Vector3f> navigationEditorPoints;
+		VertexRenderStruct            navigationEditorPointsMesh;
+		std::vector<VertexRenderStruct> navigationEditorNavMeshes;
+		std::string navigationEditorConfigPath;
+		int         navigationEditorObstacleCounter = 0;
+
+		void navigationEditorBuildNavMeshes();
+		void navigationEditorDrawNavigation();
+		void navigationEditorRebuildPointsMesh();
+		void navigationEditorDrawPoints();
+		void navigationEditorHandleLeftClick(const Eigen::Vector3f& hit, bool ctrlHeld);
+		void navigationEditorHandleRightClick();
+		void navigationEditorSave();
+		void navigationEditorReload();
+
 		// Set by Game when the user's primary pointer (left mouse / single touch)
 		// has crossed the tap-vs-drag threshold and is now rotating the camera.
 		bool cameraDragging = false;