started working on the tex-part

started working on eval-graphics
ned helper methods
tested some new aspects
some fixes and changes
added some graphics
new test-floorplan
many cleanups

code/MyGridNode.h

@@ -15,6 +15,9 @@ struct MyGridNode : public GridNode, public GridPoint {
 	/** node importance based on surroundings */
 	float imp = 1.0;
 
+	/** used for eval */
+	int cnt = 0;
+
 public:
 
 	/** needed ctor */