/* hap_fact.c */
extern double hap_fact(struct natstr *, struct natstr *);
/* hours.c */
+extern int is_wday_allowed(int, char *);
+extern int is_daytime_allowed(int, char *);
extern int gamehours(time_t);
+extern int is_daytime_near(int, char *, int);
+extern int min_to_next_daytime(int, char *);
/* land.c */
extern int has_units(coord, coord, natid, struct lndstr *);
extern int has_units_with_mob(coord, coord, natid);