started working on 3D building stuff

wifi/estimate/ray3/Obstacle3.h

@@ -7,16 +7,31 @@
 
 #include "../../../floorplan/v2/Floorplan.h"
 
+/**
+ * 3D obstacle
+ * based on multiple triangles
+ * has a material and a type
+ */
 struct Obstacle3D {
 
+	enum class Type {
+		UNKNOWN,
+		GROUND_INDOOR,
+		GROUND_OUTDOOR,
+		STAIR,
+		DOOR,
+		WALL,
+	};
+
+	Type type;
 	Floorplan::Material mat;
 	std::vector<Triangle3> triangles;
 
 	/** empty ctor */
-	Obstacle3D() : mat() {;}
+	Obstacle3D() : type(Type::UNKNOWN), mat() {;}
 
 	/** ctor */
-	Obstacle3D(Floorplan::Material mat) : mat(mat) {;}
+	Obstacle3D(Type type, Floorplan::Material mat) : type(type), mat(mat) {;}
 
 };