#ifndef HELI_COMMON_H

#define HELI_COMMON_H

#ifndef TRUE

#define TRUE  1

#endif

#ifndef FALSE

#define FALSE 0

#endif

#ifndef PI

#define PI 3.14159265358979323846

#endif

typedef struct _Directory *Directory;

int randomNumber(int min, int max);

double randomFloat();

void rotateVector(double *x, double *y, double angle);

Directory openDirectory(const char *path);

void closeDirectory(Directory directory);

int directoryGetCount(Directory directory);

const char* directoryGet(Directory directory, int i);

int fileExists(const char *path);

int directoryExists(const char *path);

#endif