2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * prototypes.h: Prototypes for server functions
30 * Known contributors to this file:
32 * Steve McClure, 1998,2000
47 /* src/server/main.c */
48 extern void shutdwn(int sig);
49 extern void init_server(unsigned);
50 extern void start_server(int);
51 extern void finish_server(void);
53 /* src/lib/empthread/lwp.c */
57 * src/lib/commands/ *.c
59 extern int check_market(void);
60 extern void gift(natid, natid, void *, char *);
61 extern int display_mark(i_type, int);
62 extern int want_to_abandon(struct sctstr *, i_type, int, struct lndstr *);
63 extern int would_abandon(struct sctstr *, i_type, int, struct lndstr *);
64 extern int nav_map(int, int, int);
65 extern int do_unit_move(struct emp_qelem *land_list, int *together,
66 double *minmob, double *maxmob);
67 extern int count_pop(int);
68 extern int scuttle_tradeship(struct shpstr *, int);
69 extern void scuttle_ship(struct shpstr *);
70 extern void resnoise(struct sctstr *sptr, int public_amt, char *name,
72 extern int line_of_sight(char **rad, int ax, int ay, int bx, int by);
73 extern void plane_sona(struct emp_qelem *, int, int, struct shiplist **);
74 extern char *prsub(struct shpstr *);
75 extern int check_trade(void);
76 extern int ontradingblock(int, void *);
77 extern void trdswitchown(int, void *, int);
78 extern int do_look(short);
79 extern int radar(short);
80 extern void update_power(void);
258 * src/lib/common/ *.c
261 extern char *bestownedpath(char *, char *, int, int, int, int, int);
263 extern int read_builtin_tables(void);
264 extern int read_custom_tables(void);
266 extern int cnumb(char *);
270 extern int emp_config(char *file);
271 extern void print_config(FILE * fp);
273 extern double hap_fact(struct natstr *, struct natstr *);
274 extern double hap_req(struct natstr *np);
276 extern int is_wday_allowed(int, char *);
277 extern int is_daytime_allowed(int, char *);
278 extern int gamehours(time_t);
280 extern int loginit(char *);
281 extern int logreopen(void);
282 extern void logerror(char *, ...) ATTRIBUTE((format (printf, 1, 2)));
285 extern int diffx(int, int);
286 extern int diffy(int, int);
287 extern int deltax(int, int);
288 extern int deltay(int, int);
289 extern int mapdist(int, int, int, int);
295 extern void bp_enable_cachepath(void);
296 extern void bp_disable_cachepath(void);
297 extern void bp_clear_cachepath(void);
298 extern char *BestDistPath(char *, struct sctstr *, struct sctstr *,
300 extern char *BestLandPath(char *, struct sctstr *, struct sctstr *,
302 extern char *BestShipPath(char *, int, int, int, int, int);
303 extern char *BestAirPath(char *, int, int, int, int);
304 extern double pathcost(struct sctstr *, char *, int);
306 extern int read_schedule(char *, time_t[], int, time_t, time_t);
308 extern int max_population(float, int, int);
309 extern int max_pop(float, struct sctstr *);
313 extern int sct_typematch(char *);
315 extern int demand_update_want(int *, int *, int);
316 extern int demand_check(void);
317 extern int demandupdatecheck(void);
319 extern int xundump(FILE *, char *, int *, int);
325 extern char *fnameat(const char *, const char *);
326 extern FILE *fopenat(const char *, const char *, const char *);
328 extern int fsize(int);
329 extern int blksize(int);
330 extern time_t fdate(int);
332 extern int roll(int);
333 extern int roundavg(double);
334 extern int chance(double);
335 extern int disassoc(void);
336 extern char *effadv(int);
337 extern int parse(char *, char *, char **, char **, char **, char **);
338 extern int ldround(double, int);
339 extern int roundintby(int, int);
340 extern int scthash(int, int, int);
341 extern int tcp_listen(char *, char *, size_t *);
342 extern char *numstr(char buf[], int n);
344 extern char *esplur(int n);
345 extern char *splur(int n);
346 extern char *iesplur(int n);
347 extern char *plurize(char *buf, int max_len, int n);
351 * src/lib/global/ *.c
353 extern void global_init(void);
357 * src/lib/player/ *.c
360 extern void player_init(void);
361 extern struct player *player_new(int);
362 extern struct player *player_delete(struct player *);
363 extern struct player *player_next(struct player *);
364 extern struct player *player_prev(struct player *);
365 extern struct player *getplayer(natid);
366 extern void player_accept(void *);
368 extern int dispatch(char *, char *);
370 extern int getcommand(char *);
371 extern void init_player_commands(void);
372 extern void log_last_commands(void);
373 extern int gamedown(void);
374 extern void daychange(time_t);
375 extern int getminleft(time_t, int);
376 /* more under Commands */
379 extern int init_nats(void);
380 extern int player_set_nstat(struct player *, struct natstr *);
382 extern void player_login(void *);
384 extern int natbyname(char *, natid *);
385 extern int natpass(int, char *);
387 extern struct player *player; /* current player's context */
388 extern char *praddr(struct player *);
389 extern void player_main(struct player *);
390 /* more under Commands */
392 extern int recvclient(char *, int);
395 extern void stop_service(void);
396 /* more in service.h */
402 extern int confirm(char *);
403 extern int askyn(char *);
405 extern void bridge_damaged(struct sctstr *, struct emp_qelem *);
406 extern void bridgefall(struct sctstr *, struct emp_qelem *);
408 extern void bsanct(void);
410 extern void caploss(struct sctstr *, natid, char *);
412 extern int check_sect_ok(struct sctstr *);
413 extern int check_ship_ok(struct shpstr *);
414 extern int check_land_ok(struct lndstr *);
415 extern int check_nuke_ok(struct nukstr *);
416 extern int check_plane_ok(struct plnstr *);
417 extern int check_comm_ok(struct comstr *);
418 extern int check_loan_ok(struct lonstr *);
419 extern int check_trade_ok(struct trdstr *);
421 extern int chkmoney(long, long, char *);
423 extern void set_coastal(struct sctstr *, int, int);
425 extern int military_control(struct sctstr *);
427 extern void landdamage(struct lndstr *, int);
428 extern void ship_damage(struct shpstr *, int);
429 extern int damage(int, int);
430 extern void shipdamage(struct shpstr *, int);
431 extern void land_damage(struct lndstr *, int);
432 extern void planedamage(struct plnstr *, int);
433 extern int nukedamage(struct nchrstr *, int, int);
434 extern int effdamage(int, int);
435 extern void item_damage(int, short *);
436 extern int commdamage(int, int, i_type);
438 extern int detonate(struct nukstr *, coord, coord, int);
440 extern int disloan(int, struct lonstr *);
442 extern int distrea(int, struct trtstr *);
444 extern void ef_init_srv(void);
445 extern void ef_fin_srv(void);
447 extern int sd(natid, natid, coord, coord, int, int, int);
448 extern int dd(natid, natid, coord, coord, int, int);
449 extern int shipdef(natid, natid, coord, coord);
451 extern int emp_getbit(int, int, unsigned char *);
452 extern void emp_setbit(int, int, unsigned char *);
453 extern void bitinit2(struct nstr_sect *, unsigned char *, int);
455 extern int getele(char *, char *);
457 extern char *prland(struct lndstr *);
458 extern int lnd_postread(int, void *);
459 extern int lnd_prewrite(int, void *);
461 extern double seagun(int, int);
462 extern double fortgun(int, int);
463 extern double landunitgun(int, int);
464 extern double effrange(int, double);
465 extern double torprange(struct shpstr *);
466 extern double fortrange(struct sctstr *);
467 extern int roundrange(double);
469 extern int shipsatxy(coord, coord, int, int);
470 extern int carriersatxy(coord, coord, natid);
471 extern int unitsatxy(coord, coord, int, int);
472 extern int planesatxy(coord, coord, int, int, struct emp_qelem *);
473 extern int asw_shipsatxy(coord, coord, int, int, struct plnstr *,
475 extern int num_shipsatxy(coord, coord, int, int);
476 extern int has_units(coord, coord, natid, struct lndstr *);
477 extern int adj_units(coord, coord, natid);
478 extern int islist(char *);
480 extern int do_map(int bmap, int unit_type, char *arg1, char *arg2);
481 extern int draw_map(int, char, int, struct nstr_sect *);
482 extern int display_region_map(int bmap, int unit_type, coord curx,
483 coord cury, char *arg);
484 extern int bmaps_intersect(natid, natid);
485 extern int share_bmap(natid, natid, struct nstr_sect *, char, char *);
487 extern char *mission_name(short);
488 extern int collateral_damage(coord, coord, int, struct emp_qelem *);
489 extern int mission_pln_equip(struct plist *, struct ichrstr *, int, char);
490 extern int ground_interdict(coord, coord, natid, char *);
491 extern int unit_interdict(coord, coord, natid, char *, int, int);
492 extern int off_support(coord, coord, natid, natid);
493 extern int def_support(coord, coord, natid, natid);
494 extern int oprange(struct empobj *, int *);
495 extern int cando(int, int);
496 extern void show_mission(int, struct nstr_item *);
497 extern int air_defense(coord, coord, natid, struct emp_qelem *,
500 extern int check_lmines(coord, coord, double);
501 extern int move_ground(struct sctstr *, struct sctstr *,
503 int (*)(coord, coord, char *),
505 extern int fly_map(coord, coord);
507 extern int msl_intercept(coord, coord, natid, int, int, int, int);
508 extern int msl_equip(struct plnstr *);
509 extern int msl_hit(struct plnstr *, int, int, int, int, char *,
511 extern void msl_sel(struct emp_qelem *, coord, coord, natid, int,
513 extern int msl_launch_mindam(struct emp_qelem *, coord, coord, int,
514 int, int, char *, int, int);
516 extern int comtch(char *, struct cmndstr *, int);
518 extern struct natstr *natargp(char *, char *);
519 extern int natarg(char *, char *);
521 extern int neigh(coord, coord, natid);
523 extern void delete_old_news(void);
524 extern void init_nreport(void);
525 extern void nreport(natid, int, natid, int);
527 extern char *prnuke(struct nukstr *);
528 extern int nuk_postread(int, void *);
529 extern int nuk_prewrite(int, void *);
530 extern int nuk_on_plane(struct nukstr *, int);
532 extern int nxtitem(struct nstr_item *, void *);
534 extern int nxtsct(struct nstr_sect *, struct sctstr *);
536 extern int onearg(char *, char *);
538 extern char *prplane(struct plnstr *);
539 extern int pln_postread(int, void *);
540 extern int pln_prewrite(int, void *);
542 extern void count_planes(struct shpstr *);
543 extern struct sctstr *get_assembly_point(char *, struct sctstr *, char *);
544 extern int pln_onewaymission(struct sctstr *, int *, int *);
545 extern int pln_oneway_to_carrier_ok(struct emp_qelem *,
546 struct emp_qelem *, int);
547 extern void pln_newlanding(struct emp_qelem *, coord, coord, int);
548 extern int could_be_on_ship(struct plnstr *, struct shpstr *);
549 extern int put_plane_on_ship(struct plnstr *, struct shpstr *);
550 extern void pln_dropoff(struct emp_qelem *, struct ichrstr *,
551 coord, coord, void *, int);
552 extern void pln_mine(struct emp_qelem *list, struct sctstr *sectp);
553 extern int pln_capable(struct plnstr *, int, int);
554 extern int pln_airbase_ok(struct plnstr *, int, int);
555 extern int carrier_planes(struct shpstr *, int);
556 extern void pln_sel(struct nstr_item *, struct emp_qelem *,
557 struct sctstr *, int, int, int, int);
558 extern int pln_arm(struct emp_qelem *, int, char, struct ichrstr *,
560 extern int pln_mobcost(int, struct plnstr *, int);
561 extern void pln_put(struct emp_qelem *);
562 extern void pln_removedupes(struct emp_qelem *, struct emp_qelem *);
563 extern void take_plane_off_ship(struct plnstr *, struct shpstr *);
564 extern void take_plane_off_land(struct plnstr *, struct lndstr *);
565 extern void plane_sweep(struct emp_qelem *, coord, coord);
566 extern void count_land_planes(struct lndstr *);
567 extern int count_sect_planes(struct sctstr *);
568 extern int put_plane_on_land(struct plnstr *, struct lndstr *);
569 extern int pln_hitchance(struct plnstr *, int, int);
570 extern int pln_damage(struct plnstr *, coord, coord, char, int *, int);
571 extern int pln_identchance(struct plnstr *, int, int);
572 extern void pln_set_tech(struct plnstr *, int);
574 extern void pr(char *, ...) ATTRIBUTE((format (printf, 1, 2)));
575 extern void uprnf(char *buf);
576 extern void pr_id(struct player *, int, char *, ...)
577 ATTRIBUTE((format (printf, 3, 4)));
578 extern void pr_flash(struct player *, char *, ...)
579 ATTRIBUTE((format (printf, 2, 3)));
580 extern void pr_inform(struct player *, char *, ...)
581 ATTRIBUTE((format (printf, 2, 3)));
582 extern void pr_wall(char *, ...)
583 ATTRIBUTE((format (printf, 1, 2)));
584 extern void prredir(char *redir);
585 extern void prexec(char *file);
586 extern void prprompt(int min, int btu);
587 extern int prmptrd(char *prompt, char *str, int size);
588 extern int uprmptrd(char *prompt, char *str, int size);
589 extern void prdate(void);
590 extern void prxy(char *format, coord x, coord y, natid country);
591 extern void PR(int, char *, ...) ATTRIBUTE((format (printf, 2, 3)));
592 extern void PRdate(natid cn);
593 extern void pr_beep(void);
594 extern void mpr(int, char *, ...) ATTRIBUTE((format (printf, 2, 3)));
595 extern size_t copy_ascii_no_funny(char *, char *);
596 extern size_t copy_utf8_no_funny(char *, char *);
597 extern size_t copy_utf8_to_ascii_no_funny(char *, char *);
598 extern int ufindpfx(char *, int);
601 extern int deltx(struct range *, coord);
602 extern int delty(struct range *, coord);
603 extern void radmap(int, int, int, int, double);
604 extern void radmapnopr(int, int, int, int, double);
605 extern void radmapupd(int, int, int, int, int, double);
607 extern int setrel(natid, natid, int);
608 extern int setcont(natid, natid, int);
609 extern int setrej(natid, natid, int, int);
611 extern void retreat_ship(struct shpstr *, char);
612 extern void retreat_land(struct lndstr *, char);
613 extern int check_retreat_and_do_shipdamage(struct shpstr *, int);
614 extern int check_retreat_and_do_landdamage(struct lndstr *, int);
616 extern ns_seltype sarg_type(char *);
617 extern int sarg_xy(char *, coord *, coord *);
618 extern int sarg_area(char *, struct range *);
619 extern int sarg_range(char *, coord *, coord *, int *);
620 extern int sarg_list(char *, int *, int);
622 extern void satdisp_sect(struct sctstr *, int);
623 extern void satdisp_units(coord, coord);
624 extern void satmap(int, int, int, int, int, int);
625 extern void sathead(void);
627 extern int sct_postread(int, void *);
628 extern int sct_prewrite(int, void *);
629 extern void item_prewrite(short *);
630 extern int issector(char *);
632 extern int sect_damage(struct sctstr *, int, struct emp_qelem *);
633 extern int sectdamage(struct sctstr *, int, struct emp_qelem *);
635 extern char *prship(struct shpstr *);
636 extern int shp_postread(int, void *);
637 extern int shp_prewrite(int, void *);
639 extern void show_bridge(int);
640 extern void show_tower(int);
641 extern void show_nuke_stats(int);
642 extern void show_nuke_capab(int);
643 extern void show_nuke_build(int);
644 extern void show_ship_build(int);
645 extern void show_ship_stats(int);
646 extern void show_ship_capab(int);
647 extern void show_plane_stats(int);
648 extern void show_plane_capab(int);
649 extern void show_plane_build(int);
650 extern void show_land_build(int);
651 extern void show_land_capab(int);
652 extern void show_land_stats(int);
653 extern void show_sect_build(int);
654 extern void show_sect_stats(int);
655 extern void show_sect_capab(int);
656 extern void show_item(int);
657 extern void show_news(int);
658 extern void show_updates(int);
660 extern void shp_sel(struct nstr_item *, struct emp_qelem *);
661 extern void shp_nav(struct emp_qelem *, double *, double *, int *, natid);
662 extern int shp_sweep(struct emp_qelem *, int, int, natid);
663 extern int shp_check_nav(struct sctstr *, struct shpstr *);
664 extern int sect_has_dock(struct sctstr *);
665 extern int shp_hardtarget(struct shpstr *);
666 extern int shp_nav_one_sector(struct emp_qelem *, int, natid, int);
667 extern int shp_missile_defense(coord, coord, natid, int);
668 extern void shp_missdef(struct shpstr *, natid);
669 extern double shp_mobcost(struct shpstr *);
670 extern void shp_set_tech(struct shpstr *, int);
672 extern int snxtitem(struct nstr_item *, int, char *);
673 extern void snxtitem_area(struct nstr_item *, int,
675 extern void snxtitem_dist(struct nstr_item *, int, int, int, int);
676 extern void snxtitem_xy(struct nstr_item *, int, coord, coord);
677 extern void snxtitem_all(struct nstr_item *, int);
678 extern void snxtitem_group(struct nstr_item *, int, char);
679 extern void snxtitem_rewind(struct nstr_item *);
680 extern int snxtitem_list(struct nstr_item *, int, int *, int);
682 extern int snxtsct(struct nstr_sect *, char *);
683 extern void snxtsct_area(struct nstr_sect *, struct range *);
684 extern void xydist_range(coord, coord, int, struct range *);
685 extern void xysize_range(struct range *);
686 extern void snxtsct_all(struct nstr_sect *);
687 extern void snxtsct_rewind(struct nstr_sect *);
688 extern void snxtsct_dist(struct nstr_sect *, coord, coord, int);
690 extern void resupply_all(struct lndstr *);
691 extern void resupply_commod(struct lndstr *, i_type);
692 extern int supply_commod(int, int, int, i_type, int);
693 extern int try_supply_commod(int, int, int, i_type, int);
694 extern int has_supply(struct lndstr *);
695 extern int use_supply(struct lndstr *);
697 extern void takeover_land(struct lndstr *, natid, int);
698 extern void takeover(struct sctstr *, natid);
699 extern void takeover_ship(struct shpstr *, natid, int);
700 extern void takeover_plane(struct plnstr *, natid);
703 extern int trechk(natid, natid, int);
707 extern void clear_telegram_is_new(natid);
708 extern int typed_wu(natid, natid, char *, int);
709 extern int wu(natid, natid, char *, ...) ATTRIBUTE((format (printf, 3, 4)));
712 * src/lib/update/ *.c
715 extern void age_levels(int);
717 extern void delete_old_announcements(void);
721 extern void dodeliver(struct sctstr *);
723 extern int dodistribute(struct sctstr *, int, char *, double, double);
725 extern void finish_sects(int);
727 extern int new_work(struct sctstr *, int);
728 extern int do_feed(struct sctstr *, struct natstr *, short *, int *, int);
729 extern int feed_people(short *, int);
730 extern double food_needed(short *, int);
731 extern int famine_victims(short *, int);
733 extern int prod_land(int, int, struct bp *, int);
739 extern void mob_sect(void);
740 extern void mob_ship(void);
741 extern void mob_land(void);
742 extern void mob_plane(void);
743 extern void sct_do_upd_mob(struct sctstr *sp);
744 extern void shp_do_upd_mob(struct shpstr *sp);
745 extern void lnd_do_upd_mob(struct lndstr *lp);
746 extern void pln_do_upd_mob(struct plnstr *pp);
748 extern void move_sat(struct plnstr *);
750 extern void prod_nat(int);
752 extern int nav_ship(struct shpstr *);
754 extern int load_it(struct shpstr *, struct sctstr *,
756 extern void unload_it(struct shpstr *);
757 extern void auto_fuel_ship(struct shpstr *);
759 extern void *nxtitemp(struct nstr_item *);
761 extern void do_plague(struct sctstr *, struct natstr *, int);
762 extern int plague_people(struct natstr *, short *, int *, int *, int);
764 extern int prod_plane(int, int, struct bp *, int);
766 extern void populace(struct natstr *, struct sctstr *, int);
767 extern int total_work(int, int, int, int, int, int);
769 extern void tax(struct sctstr *, struct natstr *, int, long *, int *,
771 extern int upd_slmilcosts(natid, int);
772 extern void prepare_sects(int, struct bp *);
773 extern int bank_income(struct sctstr *, int);
775 extern int produce(struct natstr *, struct sctstr *, short *, int, int,
777 extern double prod_eff(int, float);
779 extern int update_removewants(void);
781 extern void revolt(struct sctstr *);
782 extern void guerrilla(struct sctstr *);
784 extern void sail_ship(natid);
786 extern void do_fallout(struct sctstr *, int);
787 extern void spread_fallout(struct sctstr *, int);
788 extern void decay_fallout(struct sctstr *, int);
789 extern void produce_sect(int, int, struct bp *, long [][2]);
791 extern int prod_ship(int, int, struct bp *, int);