refactored the new floorplan

new helper methods/operator toe geo classes

geo/Point2.h

@@ -38,6 +38,10 @@ struct Point2 {
 
 	bool operator == (const Point2& o) const {return x==o.x && y==o.y;}
 
+        bool operator != (const Point2& o) const {return x!=o.x || y!=o.y;}
+
+
+        Point2 perpendicular() const {return Point2(-y, x);}
 
 	/** get the distance between this point and the other one */
 	float getDistance(const Point2& o) const {