refactored random subsystem

added compile-time seed support

grid/walk/TestWalkWeighted3.h

@@ -5,7 +5,9 @@
 #include "../Grid.h"
 
 #include "../../math/DrawList.h"
-#include <KLib/math/distribution/Normal.h>
+#include "../../math/Random.h"
+
+//#include <KLib/math/distribution/Normal.h>
 
 /**
  * perform walks on the grid based on some sort of weighting
@@ -38,7 +40,7 @@ private:
 	DrawList<T&> drawer;
 
 	/** fast random-number-generator */
-	std::minstd_rand gen;
+	RandomGenerator gen;
 
 	/** 0-mean normal distribution */
 	std::normal_distribution<float> headingChangeDist = std::normal_distribution<float>(0.0, HEADING_CHANGE_SIGMA);