text: #ifndef HIGHSCORE_H
  #define HIGHSCORE_H
  
  #include <stdio.h>
  #include "types.h"
  
  #define HIGHSCORE_DIR ".msnake"
  #define HIGHSCORE_FILE "highscores.dat"
  
  int calculate_score(int points, long time_sec);
  HIGHSCORE *read_highscore(int *num);
  int add_highscore(char *name, int points, int time_sec);
  void clear_highscore();
  
  #endif /* HIGHSCORE_H */
  