removed Heading::rnd()

changed particle init
fixed uninitialized values
new ground-truth helper methods
added new stats to the eval (distance from ground-truth)

code/particles/MyState.h

@@ -25,18 +25,18 @@ struct MyState {
 	GridWalkState<MyGridNode> walkState;
 
     // cumulative heading
-    double cumulativeHeading;
+	double cumulativeHeading = 0;
 
     // save last hPa measurement for the smoothing process
-    double measurement_pressure;
+	double measurement_pressure = 0;
 
     // save last angularHeadingChangefor the smoothing process in Degree
-    double angularHeadingChange;
+	double angularHeadingChange = 0;
 
-    double avgAngle;
+	double avgAngle = 0;
 
     //the current Activity
-    Activity currentActivity;
+	Activity currentActivity = Activity::UNKNOWN;
 
 	//int distanceWalkedCM;