include/xot/util.h in xot-0.1.7 vs include/xot/util.h in xot-0.1.8

@@ -3,18 +3,41 @@
 #ifndef __XOT_UTIL_H__
 #define __XOT_UTIL_H__
 
 
 #include <stdint.h>
+#include <math.h>
+#include <xot/defs.h>
+#include <xot/time.h>
 
 
 namespace Xot
 {
 
 
 	int bit2byte (int bits);
 
 	int byte2bit (int bytes);
+
+
+	void seed (uint value = (uint) (time() * 1000));
+
+	double random (double max_ = 1);
+
+	double random (double min_, double max_);
+
+
+	template <typename T>
+	inline T deg2rad (T degree)
+	{
+		return degree / (T) 180 * M_PI;
+	}
+
+	template <typename T>
+	inline T rad2deg (T radian)
+	{
+		return radian / M_PI * (T) 180;
+	}
 
 
 	template <typename T>
 	inline T clip (T minval, T maxval, T value)
 	{