2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2005, 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 the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * 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
40 #include "empthread.h"
45 #include "commodity.h"
47 /* src/server/main.c */
48 extern void panic(int sig);
49 extern void shutdwn(int sig);
50 extern void init_server(void);
51 extern void start_server(int);
52 extern void finish_server(void);
54 /*****************************************************************************
56 *****************************************************************************/
58 /* src/lib/empthread/lwp.c */
62 * src/lib/commands/ *.c
64 extern int check_market(void);
65 extern int sendmessage(struct natstr *, struct natstr *, char *message, int);
66 extern void gift(int, int, s_char *, int, s_char *);
67 extern int display_mark(i_type, int);
68 extern int want_to_abandon(struct sctstr *, i_type, int, struct lndstr *);
69 extern int would_abandon(struct sctstr *, i_type, int, struct lndstr *);
70 extern int nav_map(int, int, int);
71 extern int count_pop(int);
72 extern int scuttle_tradeship(struct shpstr *, int);
73 extern void scuttle_ship(struct shpstr *);
74 extern void resnoise(struct sctstr *sptr, int public_amt, s_char *name,
76 extern int line_of_sight(char **rad, int ax, int ay, int bx, int by);
77 extern void plane_sona(struct emp_qelem *, int, int, struct shiplist **);
78 extern s_char *prsub(struct shpstr *);
79 extern int check_trade(void);
80 extern int ontradingblock(int, int *);
81 extern void trdswitchown(int, int *, int);
258 * src/lib/common/ *.c
261 extern s_char *bestownedpath(s_char *, s_char *, int, int, int,
264 extern void bridgefall(struct sctstr *, struct emp_qelem *);
265 extern void knockdown(struct sctstr *, struct emp_qelem *);
267 extern void landdamage(struct lndstr *, int);
268 extern void ship_damage(struct shpstr *, int);
269 extern int damage(int, int);
270 extern void shipdamage(struct shpstr *, int);
271 extern void land_damage(struct lndstr *, int);
272 extern void planedamage(struct plnstr *, int);
273 extern int nukedamage(struct nchrstr *, int, int);
274 extern int effdamage(int, int);
275 extern void item_damage(int, short *);
276 extern int commdamage(int, int, i_type);
278 extern int check_sect_ok(struct sctstr *);
279 extern int check_ship_ok(struct shpstr *);
280 extern int check_land_ok(struct lndstr *);
281 extern int check_nuke_ok(struct nukstr *);
282 extern int check_plane_ok(struct plnstr *);
283 extern int check_comm_ok(struct comstr *);
284 extern int check_loan_ok(struct lonstr *);
285 extern int check_trade_ok(struct trdstr *);
291 extern int fsize(int);
292 extern int blksize(int);
293 extern time_t fdate(int);
295 extern double hap_fact(struct natstr *, struct natstr *);
297 extern int is_wday_allowed(int, char *);
298 extern int is_daytime_allowed(int, char *);
299 extern int gamehours(time_t);
300 extern int is_daytime_near(int, char *, int);
301 extern int min_to_next_daytime(int, char *);
303 extern int has_units(coord, coord, natid, struct lndstr *);
304 extern int has_units_with_mob(coord, coord, natid);
305 extern int adj_units(coord, coord, natid);
306 extern int has_helpful_engineer(coord x, coord y, natid cn);
308 extern void loginit(char *);
309 extern void logerror(char *, ...) ATTRIBUTE((format (printf, 1, 2)));
312 extern int draw_map(int, s_char, int, struct nstr_sect *);
313 extern int unit_map(int, int, struct nstr_sect *, s_char *);
314 extern int bmaps_intersect(natid, natid);
315 extern int share_bmap(natid, natid, struct nstr_sect *, s_char, s_char *);
321 extern void bp_enable_cachepath(void);
322 extern void bp_disable_cachepath(void);
323 extern void bp_clear_cachepath(void);
324 extern s_char *BestDistPath(s_char *, struct sctstr *, struct sctstr *,
326 extern s_char *BestLandPath(s_char *, struct sctstr *, struct sctstr *,
328 extern s_char *BestShipPath(s_char *, int, int, int, int, int);
329 extern s_char *BestAirPath(s_char *, int, int, int, int);
330 extern double pathcost(struct sctstr *, s_char *, int);
332 extern int max_population(float, int, int);
333 extern int max_pop(float, struct sctstr *);
335 extern int sect_damage(struct sctstr *, int, struct emp_qelem *);
336 extern int sectdamage(struct sctstr *, int, struct emp_qelem *);
338 extern void snxtitem_area(struct nstr_item *, int,
340 extern void snxtitem_dist(struct nstr_item *, int, int, int, int);
341 extern void snxtitem_xy(struct nstr_item *, int, coord, coord);
342 extern void snxtitem_all(struct nstr_item *, int);
343 extern void snxtitem_group(struct nstr_item *, int, s_char);
344 extern void snxtitem_rewind(struct nstr_item *);
345 extern int snxtitem_list(struct nstr_item *, int, int *, int);
346 /* snxtsect_subs.c */
347 extern void snxtsct_area(struct nstr_sect *, struct range *);
348 extern void xydist_range(coord, coord, int, struct range *);
349 extern void xysize_range(struct range *);
350 extern void snxtsct_all(struct nstr_sect *);
351 extern void snxtsct_rewind(struct nstr_sect *);
352 extern void snxtsct_dist(struct nstr_sect *, coord, coord, int);
356 extern int sct_typematch(char *);
357 extern int typematch(char *, int);
359 extern void update_policy_check(void);
360 extern int demand_update_want(int *, int *, int);
361 extern int demandupdatecheck(void);
362 extern int updatetime(time_t *);
363 extern void next_update_time(time_t *, time_t *, time_t *);
364 extern void next_update_check_time(time_t *, time_t *, time_t *);
365 extern int updates_disabled(void);
367 extern int xundump(FILE *, char *, int);
373 extern int emp_config(char *file);
374 extern void print_config(FILE * fp);
376 extern int roll(int);
377 extern int roundavg(double);
378 extern int chance(double);
379 extern int disassoc(void);
380 extern int diffx(int, int);
381 extern int diffy(int, int);
382 extern int deltax(int, int);
383 extern int deltay(int, int);
384 extern int mapdist(int, int, int, int);
386 extern int max(int, int);
387 extern int min(int, int);
389 extern s_char *effadv(int);
390 extern int onearg(s_char *, s_char *);
391 extern int parse(char *, char **, char **, char *, char **);
392 extern int ldround(double, int);
393 extern int roundintby(int, int);
394 extern int scthash(register int, register int, int);
395 extern int tcp_listen(char *, char *, size_t *);
397 extern s_char *numstr(s_char buf[], int n);
398 extern s_char *esplur(int n);
399 extern s_char *splur(int n);
400 extern s_char *iesplur(int n);
401 extern char *plurize(char *buf, int max_len, int n);
405 * src/lib/global/ *.c
407 extern void global_init(void);
411 * src/lib/player/ *.c
414 extern void player_init(void);
415 extern struct player *player_new(int);
416 extern struct player *player_delete(struct player *);
417 extern struct player *player_next(struct player *);
418 extern struct player *player_prev(struct player *);
419 extern struct player *getplayer(natid);
420 extern void player_wakeup_all(natid);
421 extern void player_wakeup(struct player *);
422 extern void player_accept(void *);
424 extern int dispatch(char *, char *);
426 extern int getcommand(char *);
427 extern void init_player_commands(void);
428 extern void log_last_commands(void);
429 extern int gamedown(void);
430 extern void daychange(time_t);
431 extern int getminleft(time_t, int);
432 /* more under Commands */
435 extern int init_nats(void);
437 extern void player_login(void *);
439 extern int natbyname(s_char *, natid *);
440 extern int natpass(int, s_char *);
442 extern struct player *player; /* current player's context */
443 extern char *praddr(struct player *);
444 extern void player_main(struct player *);
445 extern int match_user(char *, struct player *);
446 extern int command(void);
447 /* more under Commands */
449 extern int recvclient(char *, int);
452 extern void stop_service(void);
453 /* more in service.h */
459 extern int confirm(s_char *);
460 extern int askyn(s_char *);
462 extern void bsanct(void);
464 extern void caploss(struct sctstr *, natid, s_char *);
466 extern int chkmoney(long, long, s_char *);
467 extern int check_cost(int, int, long, int *, s_char *);
469 extern int cnumb(s_char *);
471 extern void set_coastal(struct sctstr *sp, int des);
473 extern int military_control(struct sctstr *);
475 extern int detonate(struct plnstr *, int, int);
477 extern int disloan(int, register struct lonstr *);
479 extern int distrea(int, register struct trtstr *);
481 extern void ef_init_srv(void);
482 extern void ef_fin_srv(void);
484 extern int sd(natid, natid, coord, coord, int, int, int);
485 extern int dd(natid, natid, coord, coord, int, int);
486 extern int sb(natid, natid, struct sctstr *, coord, coord, int, int);
487 extern int shipdef(natid, natid, coord, coord);
489 extern int emp_getbit(int, int, u_char *);
490 extern void emp_setbit(int, int, u_char *);
491 extern void emp_setbitmap(int, int, u_char *, int *);
492 extern void bitinit2(struct nstr_sect *, u_char *, int);
494 extern int getele(char *, char *);
496 extern s_char *prland(struct lndstr *);
497 extern int lnd_postread(int, void *);
498 extern int lnd_prewrite(int, void *);
499 extern void lnd_init(int, void *);
501 extern double seagun(int, int);
502 extern double landgun(int, int);
503 extern double landunitgun(int, int, int, int, int);
504 extern int roundrange(double);
506 extern int shipsatxy(coord, coord, int, int);
507 extern int carriersatxy(coord, coord, int, int, natid);
508 extern int unitsatxy(coord, coord, int, int);
509 extern int planesatxy(coord, coord, int, int, struct emp_qelem *);
510 extern int asw_shipsatxy(coord, coord, int, int, struct plnstr *,
512 extern int num_shipsatxy(coord, coord, int, int);
513 extern int islist(s_char *);
514 /* src/lib/subs/mission.c */
515 extern s_char *mission_name(short);
516 extern s_char *nameofitem(struct genitem *, int);
517 extern int collateral_damage(coord, coord, int, struct emp_qelem *);
518 extern int mission_pln_equip(struct plist *, struct ichrstr *, int,
520 extern int ground_interdict(coord, coord, natid, s_char *);
521 extern int unit_interdict(coord, coord, natid, s_char *, int, int);
522 extern int off_support(coord, coord, natid, natid);
523 extern int def_support(coord, coord, natid, natid);
524 extern int oprange(struct genitem *, int, int *);
525 extern int cando(int, int);
526 extern void show_mission(int, struct nstr_item *);
527 extern int air_defense(coord, coord, natid, struct emp_qelem *,
530 extern int check_lmines(coord, coord, double);
531 extern int move_ground(s_char *, struct sctstr *, struct sctstr *,
533 int (*)(s_char *, coord, coord, s_char *),
535 extern int fly_map(coord, coord);
537 extern int msl_intercept(coord, coord, natid, int, int, int, int);
538 extern int msl_equip(struct plnstr *);
539 extern int msl_hit(struct plnstr *, int, int, int, int, s_char *,
541 extern void msl_sel(struct emp_qelem *, coord, coord, natid, int,
543 extern int msl_launch_mindam(struct emp_qelem *, coord, coord, int,
544 int, int, s_char *, int, int);
546 extern int comtch(register s_char *, struct cmndstr *, int);
548 extern int natarg(s_char *, s_char *);
550 extern int neigh(coord, coord, natid);
552 extern void delete_old_news(void);
553 extern void init_nreport(void);
554 extern void nreport(natid, int, natid, int);
556 extern int nuk_postread(int, void *);
557 extern int nuk_prewrite(int, void *);
558 extern void nuk_init(int, void *);
559 extern void nuk_add(coord, coord, int, int);
560 extern void nuk_delete(struct nukstr *, int, int);
562 extern int nxtitem(struct nstr_item *, void *);
564 extern int nxtsct(struct nstr_sect *, struct sctstr *);
566 extern s_char *prplane(struct plnstr *);
567 extern int pln_postread(int, void *);
568 extern int pln_prewrite(int, void *);
569 extern void pln_init(int, void *);
571 extern void count_planes(struct shpstr *);
572 extern struct sctstr *get_assembly_point(char *, struct sctstr *, char *);
573 extern int pln_onewaymission(struct sctstr *, int *, int *);
574 extern int pln_oneway_to_carrier_ok(struct emp_qelem *,
575 struct emp_qelem *, int);
576 extern void pln_newlanding(struct emp_qelem *, coord, coord, int);
577 extern int can_be_on_ship(int, int);
578 extern int put_plane_on_ship(struct plnstr *, struct shpstr *);
579 extern void pln_dropoff(struct emp_qelem *, struct ichrstr *,
580 coord, coord, void *, int);
581 extern void pln_mine(struct emp_qelem *list, struct sctstr *sectp);
582 extern void pln_sel(struct nstr_item *, struct emp_qelem *,
583 struct sctstr *, int, int, int, int);
584 extern int pln_arm(struct emp_qelem *, int, int, struct ichrstr *,
586 extern int pln_mobcost(int, struct plnstr *, int);
587 extern void pln_put(struct emp_qelem *);
588 extern void pln_removedupes(struct emp_qelem *, struct emp_qelem *);
589 extern int take_plane_off_ship(struct plnstr *, struct shpstr *);
590 extern int take_plane_off_land(struct plnstr *, struct lndstr *);
591 extern void plane_sweep(struct emp_qelem *, coord, coord);
592 extern void count_land_planes(struct lndstr *);
593 extern int count_sect_planes(struct sctstr *);
594 extern int put_plane_on_land(struct plnstr *, struct lndstr *);
595 extern int pln_hitchance(struct plnstr *, int, int);
596 extern int pln_damage(struct plnstr *, coord, coord, s_char, int *, int);
597 extern int pln_identchance(struct plnstr *, int, int);
598 extern void pln_set_tech(struct plnstr *, int);
600 extern void pr(char *, ...) ATTRIBUTE((format (printf, 1, 2)));
601 extern void uprnf(char *buf);
602 extern void pr_id(struct player *, int, char *, ...)
603 ATTRIBUTE((format (printf, 3, 4)));
604 extern void pr_flash(struct player *, char *, ...)
605 ATTRIBUTE((format (printf, 2, 3)));
606 extern void pr_inform(struct player *, char *, ...)
607 ATTRIBUTE((format (printf, 2, 3)));
608 extern void pr_wall(char *, ...)
609 ATTRIBUTE((format (printf, 1, 2)));
610 extern void prredir(char *redir);
611 extern void prexec(char *file);
612 extern void prprompt(int min, int btu);
613 extern int prmptrd(char *prompt, char *str, int size);
614 extern int uprmptrd(char *prompt, char *str, int size);
615 extern void prdate(void);
616 extern void prxy(char *format, coord x, coord y, natid country);
617 extern void PR(int, char *, ...) ATTRIBUTE((format (printf, 2, 3)));
618 extern void PRdate(natid cn);
619 extern void pr_beep(void);
620 extern void mpr(int, char *, ...) ATTRIBUTE((format (printf, 2, 3)));
621 extern size_t copy_ascii_no_funny(char *, char *);
622 extern size_t copy_utf8_no_funny(char *, char *);
623 extern size_t copy_utf8_to_ascii_no_funny(char *, char *);
624 extern int ufindpfx(char *, int);
627 extern int deltx(struct range *, coord);
628 /* Prototype include a typedef name.
629 It should be moved after the typedef declaration */
630 extern int delty(struct range *, coord);
631 /* Prototype include a typedef name.
632 It should be moved after the typedef declaration */
633 extern void radmap(int, int, int, int, double);
634 extern void radmapnopr(int, int, int, int, double);
635 extern void radmapupd(int, int, int, int, int, double);
637 extern int setrel(natid, natid, int);
638 extern int setcont(natid, natid, int);
639 extern int setrej(natid, natid, int, int);
641 extern void retreat_ship(struct shpstr *, s_char);
642 extern void retreat_land(struct lndstr *, s_char);
643 extern int check_retreat_and_do_shipdamage(struct shpstr *, int);
644 extern int check_retreat_and_do_landdamage(struct lndstr *, int);
646 extern ns_seltype sarg_type(char *);
647 extern int sarg_xy(char *, coord *, coord *);
648 extern int sarg_area(char *, register struct range *);
649 extern int sarg_range(char *, coord *, coord *, int *);
650 extern int sarg_list(char *, register int *, int);
652 extern void satdisp(struct sctstr *, int, int);
653 extern void satmap(int, int, int, int, int, int);
654 extern void sathead(void);
656 extern int sct_postread(int, void *);
657 extern int sct_prewrite(int, void *);
658 extern void item_prewrite(short *);
659 extern int issector(s_char *);
661 extern s_char *prship(struct shpstr *);
662 extern int shp_postread(int, void *);
663 extern int shp_prewrite(int, void *);
664 extern void shp_init(int, void *);
666 extern void show_bridge(int);
667 extern void show_tower(int);
668 extern void show_nuke_stats(int);
669 extern void show_nuke_capab(int);
670 extern void show_nuke_build(int);
671 extern void show_ship_build(int);
672 extern void show_ship_stats(int);
673 extern void show_ship_capab(int);
674 extern void show_plane_stats(int);
675 extern void show_plane_capab(int);
676 extern void show_plane_build(int);
677 extern void show_land_build(int);
678 extern void show_land_capab(int);
679 extern void show_land_stats(int);
680 extern void show_sect_build(int);
681 extern void show_sect_stats(int);
682 extern void show_sect_capab(int);
684 extern void shp_sel(struct nstr_item *, struct emp_qelem *);
685 extern void shp_nav(struct emp_qelem *, double *, double *, int *, natid);
686 extern int shp_sweep(struct emp_qelem *, int, natid);
687 extern s_char *shp_path(int, struct shpstr *, s_char *);
688 extern void shp_put(struct emp_qelem *, natid);
689 extern void shp_list(struct emp_qelem *);
690 extern int shp_hardtarget(struct shpstr *);
691 extern void shp_view(struct emp_qelem *);
692 extern int shp_nav_one_sector(struct emp_qelem *, int, natid, int);
693 extern int shp_missile_defense(coord, coord, natid, int);
694 extern void shp_missdef(struct shpstr *, natid);
695 extern void shp_set_tech(struct shpstr *, int);
697 extern int snxtitem(struct nstr_item *, int, s_char *);
699 extern int snxtsct(register struct nstr_sect *, s_char *);
701 extern void resupply_all(struct lndstr *);
702 extern void resupply_commod(struct lndstr *, i_type);
703 extern int supply_commod(int, int, int, i_type, int);
704 extern int try_supply_commod(int, int, int, i_type, int);
705 extern int has_supply(struct lndstr *);
706 extern int use_supply(struct lndstr *);
708 extern void takeover_land(struct lndstr *, natid, int);
709 extern void takeover(struct sctstr *, natid);
710 extern void takeover_ship(struct shpstr *, natid, int);
711 extern void takeover_plane(struct plnstr *, natid);
714 extern int trechk(register natid, register natid, int);
718 extern void clear_telegram_is_new(natid);
719 extern int typed_wu(natid, natid, char *, int);
720 extern int wu(natid, natid, char *, ...) ATTRIBUTE((format (printf, 3, 4)));
723 * src/lib/update/ *.c
726 extern void age_levels(int);
728 extern void delete_old_announcements(void);
732 extern void dodeliver(struct sctstr *);
734 extern int dodistribute(struct sctstr *, int, s_char *, double, double);
736 extern void finish_sects(int);
738 extern int new_work(struct sctstr *, int);
739 extern int do_feed(register struct sctstr *, register struct natstr *,
740 short *, int *, int *, int);
741 extern int feed_people(short *, int, int *);
743 extern int prod_land(int, int, int *, int);
744 extern int feed_land(struct lndstr *, int, int *, int);
750 extern void mob_sect(int);
751 extern void mob_ship(int);
752 extern void mob_land(int);
753 extern void mob_plane(int);
754 extern void update_all_mob(void);
755 extern void update_timestamps(time_t offset);
756 extern void sct_do_upd_mob(struct sctstr *sp);
757 extern void shp_do_upd_mob(struct shpstr *sp);
758 extern void lnd_do_upd_mob(struct lndstr *lp);
759 extern void pln_do_upd_mob(struct plnstr *pp);
761 extern void move_sat(struct plnstr *);
763 extern double logx(double, double);
764 extern void prod_nat(int);
766 extern int nav_ship(register struct shpstr *);
768 extern int check_nav(struct sctstr *);
769 extern int load_it(struct shpstr *, struct sctstr *,
771 extern void unload_it(struct shpstr *);
772 extern void auto_fuel_ship(struct shpstr *);
774 extern s_char *nxtitemp(struct nstr_item *);
776 extern void do_plague(struct sctstr *, struct natstr *, int);
777 extern int plague_people(struct natstr *, short *, int *, int *, int);
779 extern int prod_plane(int, int, int *, int);
781 extern void populace(struct natstr *, register struct sctstr *, int);
782 extern int total_work(int, int, int, int, int, int);
784 extern void tax(struct sctstr *, struct natstr *, int, long *, int *,
786 extern int upd_slmilcosts(natid, int);
787 extern void prepare_sects(int, int *);
788 extern int bank_income(struct sctstr *, int);
790 extern int produce(struct natstr *, struct sctstr *, short *, int, int,
792 extern double prod_eff(struct pchrstr *, float);
794 extern int update_removewants(void);
796 extern void revolt(struct sctstr *);
797 extern void guerrilla(struct sctstr *);
799 extern void sail_ship(natid);
801 extern void do_fallout(register struct sctstr *, register int);
802 extern void spread_fallout(struct sctstr *, int);
803 extern void decay_fallout(struct sctstr *, int);
804 extern void produce_sect(int natnum, int etu, int *bp,
805 long int (*p_sect)[2], int sector_type);
807 extern int prod_ship(int, int, int *, int);
808 extern int feed_ship(struct shpstr *, int, int *, int);