#ifndef UTIL_H
#  define UTIL_H

#  include <stdio.h>

#  ifndef M_PI
#     define M_PI 3.14159265358979323846
#  endif

#  define SIZE(someArray) ( sizeof(someArray) / sizeof(someArray[0]) )

   typedef struct
   {
      double mX;
      double mY;

   } XY;

   // -------------------------------------------------------------
   // Open: 'fileName' with mode: 'mode', returns a FILE * or NULL
   // if the file could not be opened
   // -------------------------------------------------------------

   FILE *utilOpenFile(const char *fileName, const char *mode);

   // -------------------------------------------------------------
   // Return random value, initializes srand when first called
   // -------------------------------------------------------------

   int utilRandomValue(void);

   // -------------------------------------------------------------
   // Convert 'degrees' to radians
   // -------------------------------------------------------------

   double utilDegreesToRadians(double degrees);

   // -------------------------------------------------------------
   // Find the (x, y) point that's a distance of 'radius' away
   // from (xOffset, yOffset) with direction: 'degrees'
   // -------------------------------------------------------------

   XY utilGetXY(double degrees, double radius, double xOffset, double yOffset);

   // -------------------------------------------------------------
   // Round 'value' to integer
   // -------------------------------------------------------------

   int utilRound(double value);

   // -------------------------------------------------------------
   // Get the current hour, minute and second
   // -------------------------------------------------------------

   void utilGetHMS(int *hourPtr, int *minutePtr, int *secondPtr);

#endif