new test cases

worked on all walkers
new helper methods
new distributions
some bugfixes

geo/Angle.h

@@ -3,6 +3,7 @@
 
 #include <cmath>
 #include "../Assertions.h"
+#include "Point2.h"
 
 struct Angle {
 
@@ -16,11 +17,17 @@ public:
 		return (tmp < 0) ? (tmp + 2*M_PI) : (tmp);
 	}
 
+	/** get the radians from (0,0) to (p.x,p.y) between 0 (to-the-right) and <2_PI */
+	static float getRAD_2PI(const Point2& p) {
+		return getRAD_2PI(0, 0, p.x, p.y);
+	}
+
 	/** get the degrees from (x1,y1) to (x2,y2) between 0 (to-the-right) and <360 */
 	static float getDEG_360(const float x1, const float y1, const float x2, const float y2) {
 		return radToDeg(getRAD_2PI(x1,y1,x2,y2));
 	}
 
+
 	/**
 	 * gets the angular difference between
 	 * - the given radians [0:2PI]
@@ -35,12 +42,19 @@ public:
 
 	/** convert degrees to radians */
 	static constexpr float degToRad(const float deg) {
-		return deg / 180 * M_PI;
+		return deg / 180.0f * M_PI;
 	}
 
 	/** convert radians to degrees */
 	static float radToDeg(const float rad) {
-		return rad * 180 / M_PI;
+		return rad * 180.0f / M_PI;
+	}
+
+	/** get a pointer vector (length 1) pointing to the given angle (in radians) */
+	static Point2 getPointer(const float rad) {
+		const float x = cos(rad);
+		const float y = sin(rad);
+		return Point2(x,y);
 	}
 
 };