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 resnoise(struct sctstr *sptr, int public_amt, char *name,
71 extern int line_of_sight(char **rad, int ax, int ay, int bx, int by);
72 extern void plane_sona(struct emp_qelem *, int, int, struct shiplist **);
73 extern char *prsub(struct shpstr *);
74 extern int check_trade(void);
75 extern int ontradingblock(int, void *);
76 extern void trdswitchown(int, void *, int);
77 extern int do_look(short);
78 extern int radar(short);
79 extern void update_power(void);
255 * src/lib/common/ *.c
258 extern char *bestownedpath(char *, char *, int, int, int, int, int);
260 extern int read_builtin_tables(void);
261 extern int read_custom_tables(void);
263 extern int cnumb(char *);
267 extern int emp_config(char *file);
268 extern void print_config(FILE * fp);
270 extern double hap_fact(struct natstr *, struct natstr *);
271 extern double hap_req(struct natstr *np);
273 extern int is_wday_allowed(int, char *);
274 extern int is_daytime_allowed(int, char *);
275 extern int gamehours(time_t);
277 extern int loginit(char *);
278 extern int logreopen(void);
279 extern void logerror(char *, ...) ATTRIBUTE((format (printf, 1, 2)));
282 extern int deltax(int, int);
283 extern int deltay(int, int);
284 extern int mapdist(int, int, int, int);
290 extern void bp_enable_cachepath(void);
291 extern void bp_disable_cachepath(void);
292 extern void bp_clear_cachepath(void);
293 extern char *BestDistPath(char *, struct sctstr *, struct sctstr *,
295 extern char *BestLandPath(char *, struct sctstr *, struct sctstr *,
297 extern char *BestShipPath(char *, int, int, int, int, int);
298 extern char *BestAirPath(char *, int, int, int, int);
299 extern double pathcost(struct sctstr *, char *, int);
301 extern int read_schedule(char *, time_t[], int, time_t, time_t);
303 extern int max_population(float, int, int);
304 extern int max_pop(float, struct sctstr *);
308 extern int sct_typematch(char *);
310 extern int demand_update_want(int *, int *, int);
311 extern int demand_check(void);
312 extern int demandupdatecheck(void);
313 /* xdump.c xundump.c */
320 extern char *fnameat(const char *, const char *);
321 extern FILE *fopenat(const char *, const char *, const char *);
323 extern int fsize(int);
324 extern int blksize(int);
325 extern time_t fdate(int);
327 extern int roll(int);
328 extern int roundavg(double);
329 extern int chance(double);
330 extern int disassoc(void);
331 extern char *effadv(int);
332 extern int parse(char *, char *, char **, char **, char **, char **);
333 extern int ldround(double, int);
334 extern int roundintby(int, int);
335 extern int scthash(int, int, int);
336 extern int tcp_listen(char *, char *, size_t *);
337 extern char *numstr(char buf[], int n);
339 extern char *esplur(int n);
340 extern char *splur(int n);
341 extern char *iesplur(int n);
342 extern char *plurize(char *buf, int max_len, int n);
346 * src/lib/global/ *.c
348 extern void global_init(void);
352 * src/lib/player/ *.c
355 extern void player_init(void);
356 extern struct player *player_new(int);
357 extern struct player *player_delete(struct player *);
358 extern struct player *player_next(struct player *);
359 extern struct player *player_prev(struct player *);
360 extern struct player *getplayer(natid);
361 extern void player_accept(void *);
363 extern int dispatch(char *, char *);
365 extern int getcommand(char *);
366 extern void init_player_commands(void);
367 extern void log_last_commands(void);
368 extern void update_timeused_login(time_t now);
369 extern void update_timeused(time_t now);
370 extern void enforce_minimum_session_time(void);
371 extern int may_play_now(struct natstr *natp, time_t current_time,
372 int suppress_deity_message);
373 /* more under Commands */
376 extern int init_nats(void);
377 extern int player_set_nstat(struct player *, struct natstr *);
379 extern void player_login(void *);
381 extern int natbyname(char *, natid *);
382 extern int natpass(int, char *);
384 extern struct player *player; /* current player's context */
385 extern char *praddr(struct player *);
386 extern void player_main(struct player *);
387 /* more under Commands */
389 extern int recvclient(char *, int);
392 extern void stop_service(void);
393 /* more in service.h */
399 extern int confirm(char *);
400 extern int askyn(char *);
402 extern void bridge_damaged(struct sctstr *);
403 extern void bridgefall(struct sctstr *);
405 extern void bsanct(void);
407 extern void caploss(struct sctstr *, natid, char *);
409 extern int check_sect_ok(struct sctstr *);
410 extern int check_ship_ok(struct shpstr *);
411 extern int check_land_ok(struct lndstr *);
412 extern int check_nuke_ok(struct nukstr *);
413 extern int check_plane_ok(struct plnstr *);
414 extern int check_comm_ok(struct comstr *);
415 extern int check_loan_ok(struct lonstr *);
416 extern int check_trade_ok(struct trdstr *);
418 extern void set_coastal(struct sctstr *, int, int);
420 extern int military_control(struct sctstr *);
422 extern void landdamage(struct lndstr *, int);
423 extern void ship_damage(struct shpstr *, int);
424 extern int damage(int, int);
425 extern void shipdamage(struct shpstr *, int);
426 extern void land_damage(struct lndstr *, int);
427 extern void planedamage(struct plnstr *, int);
428 extern int nukedamage(struct nchrstr *, int, int);
429 extern int effdamage(int, int);
430 extern void item_damage(int, short *);
431 extern int commdamage(int, int, i_type);
433 extern int detonate(struct nukstr *, coord, coord, int);
435 extern int disloan(int, struct lonstr *);
437 extern int distrea(int, struct trtstr *);
439 extern void ef_init_srv(void);
440 extern void ef_fin_srv(void);
442 extern int sd(natid, natid, coord, coord, int, int, int);
443 extern int dd(natid, natid, coord, coord, int, int);
444 extern int shipdef(natid, natid, coord, coord);
446 extern int emp_getbit(int, int, unsigned char *);
447 extern void emp_setbit(int, int, unsigned char *);
448 extern void bitinit2(struct nstr_sect *, unsigned char *, int);
450 extern int getele(char *, char *);
452 extern char *prland(struct lndstr *);
453 extern void lnd_oninit(void *);
454 extern void lnd_postread(int, void *);
455 extern void lnd_prewrite(int, void *, void *);
457 extern double seagun(int, int);
458 extern double fortgun(int, int);
459 extern double landunitgun(int, int);
460 extern double torprange(struct shpstr *);
461 extern double fortrange(struct sctstr *);
462 extern int roundrange(double);
464 extern int shipsatxy(coord, coord, int, int, int);
465 extern int carriersatxy(coord, coord, natid);
466 extern int unitsatxy(coord, coord, int, int);
467 extern int planesatxy(coord, coord, int, int);
468 extern int asw_shipsatxy(coord, coord, int, int, struct plnstr *,
470 extern int has_units(coord, coord, natid, struct lndstr *);
471 extern int adj_units(coord, coord, natid);
472 extern int islist(char *);
474 extern int do_map(int bmap, int unit_type, char *arg1, char *arg2);
475 extern int display_region_map(int bmap, int unit_type, coord curx,
476 coord cury, char *arg);
477 extern int bmaps_intersect(natid, natid);
478 extern int share_bmap(natid, natid, struct nstr_sect *, char, char *);
480 extern char *mission_name(short);
481 extern int collateral_damage(coord, coord, int);
482 extern int mission_pln_equip(struct plist *, struct ichrstr *, int, char);
483 extern int ground_interdict(coord, coord, natid, char *);
484 extern int unit_interdict(coord, coord, natid, char *, int, int);
485 extern int off_support(coord, coord, natid, natid);
486 extern int def_support(coord, coord, natid, natid);
487 extern int oprange(struct empobj *);
488 extern int in_oparea(struct empobj *, coord, coord);
489 extern int cando(int, int);
491 extern int check_lmines(coord, coord, double);
492 extern int move_ground(struct sctstr *, struct sctstr *,
494 int (*)(coord, coord, char *),
496 extern int fly_map(coord, coord);
498 extern int msl_intercept(coord, coord, natid, int, int, int, int);
499 extern int msl_equip(struct plnstr *, char);
500 extern int msl_hit(struct plnstr *, int, int, int, int, char *,
502 extern void msl_sel(struct emp_qelem *, coord, coord, natid, int,
504 extern int msl_launch_mindam(struct emp_qelem *, coord, coord, int,
505 int, int, char *, int, int);
507 extern int comtch(char *, struct cmndstr *, int);
509 extern struct natstr *natargp(char *, char *);
510 extern int natarg(char *, char *);
512 extern int neigh(coord, coord, natid);
514 extern void delete_old_news(void);
515 extern void init_nreport(void);
516 extern void nreport(natid, int, natid, int);
518 extern char *prnuke(struct nukstr *);
519 extern void nuk_oninit(void *);
520 extern void nuk_postread(int, void *);
521 extern void nuk_prewrite(int, void *, void *);
523 extern int nxtitem(struct nstr_item *, void *);
525 extern int nxtsct(struct nstr_sect *, struct sctstr *);
527 extern int onearg(char *, char *);
529 extern char *prplane(struct plnstr *);
530 extern void pln_oninit(void *);
531 extern void pln_postread(int, void *);
532 extern void pln_prewrite(int, void *, void *);
534 extern int get_planes(struct nstr_item *, struct nstr_item *,
536 extern struct sctstr *get_assembly_point(char *, struct sctstr *, char *);
537 extern int pln_onewaymission(struct sctstr *, int *, int *);
538 extern int pln_oneway_to_carrier_ok(struct emp_qelem *,
539 struct emp_qelem *, int);
540 extern void pln_newlanding(struct emp_qelem *, coord, coord, int);
541 extern int could_be_on_ship(struct plnstr *, struct shpstr *,
543 extern int put_plane_on_ship(struct plnstr *, struct shpstr *);
544 extern void pln_dropoff(struct emp_qelem *, struct ichrstr *,
546 extern void pln_mine(struct emp_qelem *, coord, coord);
547 extern int pln_capable(struct plnstr *, int, int);
548 extern int pln_airbase_ok(struct plnstr *, int, int);
549 extern int carrier_planes(struct shpstr *, int);
550 extern void pln_sel(struct nstr_item *, struct emp_qelem *,
551 struct sctstr *, int, int, int, int);
552 extern void pln_arm(struct emp_qelem *, int, char, struct ichrstr *, int);
553 extern int pln_mobcost(int, struct plnstr *, int);
554 extern void pln_put(struct emp_qelem *);
555 extern void pln_put1(struct plist *);
556 extern void plane_sweep(struct emp_qelem *, coord, coord);
557 extern int put_plane_on_land(struct plnstr *, struct lndstr *);
558 extern int pln_hitchance(struct plnstr *, int, int);
559 extern int pln_damage(struct plnstr *, coord, coord, char, int *, int);
560 extern int pln_identchance(struct plnstr *, int, int);
561 extern int pln_is_in_orbit(struct plnstr *);
562 extern void pln_set_tech(struct plnstr *, int);
564 extern void pr(char *, ...) ATTRIBUTE((format (printf, 1, 2)));
565 extern void uprnf(char *buf);
566 extern void pr_id(struct player *, int, char *, ...)
567 ATTRIBUTE((format (printf, 3, 4)));
568 extern void pr_flash(struct player *, char *, ...)
569 ATTRIBUTE((format (printf, 2, 3)));
570 extern void pr_inform(struct player *, char *, ...)
571 ATTRIBUTE((format (printf, 2, 3)));
572 extern void pr_wall(char *, ...)
573 ATTRIBUTE((format (printf, 1, 2)));
574 extern void prredir(char *redir);
575 extern void prexec(char *file);
576 extern void prprompt(int min, int btu);
577 extern int prmptrd(char *prompt, char *str, int size);
578 extern int uprmptrd(char *prompt, char *str, int size);
579 extern void prdate(void);
580 extern void prxy(char *format, coord x, coord y, natid country);
581 extern void PR(int, char *, ...) ATTRIBUTE((format (printf, 2, 3)));
582 extern void PRdate(natid cn);
583 extern void pr_beep(void);
584 extern void mpr(int, char *, ...) ATTRIBUTE((format (printf, 2, 3)));
585 extern size_t copy_ascii_no_funny(char *, char *);
586 extern size_t copy_utf8_no_funny(char *, char *);
587 extern size_t copy_utf8_to_ascii_no_funny(char *, char *);
588 extern int ufindpfx(char *, int);
591 extern int deltx(struct range *, coord);
592 extern int delty(struct range *, coord);
593 extern void radmap(int, int, int, int, double);
594 extern void radmapnopr(int, int, int, int, double);
595 extern void radmapupd(int, int, int, int, int, double);
597 extern int setrel(natid, natid, int);
598 extern int setcont(natid, natid, int);
599 extern int setrej(natid, natid, int, int);
601 extern void retreat_ship(struct shpstr *, char);
602 extern void retreat_land(struct lndstr *, char);
603 extern int check_retreat_and_do_shipdamage(struct shpstr *, int);
604 extern int check_retreat_and_do_landdamage(struct lndstr *, int);
606 extern enum ns_seltype sarg_type(char *);
607 extern int sarg_xy(char *, coord *, coord *);
608 extern int sarg_area(char *, struct range *);
609 extern int sarg_range(char *, coord *, coord *, int *);
610 extern int sarg_list(char *, int *, int);
612 extern void satdisp_sect(struct sctstr *, int);
613 extern void satdisp_units(coord, coord);
614 extern void satmap(int, int, int, int, int, int);
615 extern void sathead(void);
617 extern void sct_postread(int, void *);
618 extern void sct_prewrite(int, void *, void *);
619 extern void item_prewrite(short *);
620 extern int issector(char *);
622 extern int sect_damage(struct sctstr *, int);
623 extern int sectdamage(struct sctstr *, int);
625 extern char *prship(struct shpstr *);
626 extern void shp_postread(int, void *);
627 extern void shp_prewrite(int, void *, void *);
629 extern void show_bridge(int);
630 extern void show_tower(int);
631 extern void show_nuke_stats(int);
632 extern void show_nuke_capab(int);
633 extern void show_nuke_build(int);
634 extern void show_ship_build(int);
635 extern void show_ship_stats(int);
636 extern void show_ship_capab(int);
637 extern void show_plane_stats(int);
638 extern void show_plane_capab(int);
639 extern void show_plane_build(int);
640 extern void show_land_build(int);
641 extern void show_land_capab(int);
642 extern void show_land_stats(int);
643 extern void show_sect_build(int);
644 extern void show_sect_stats(int);
645 extern void show_sect_capab(int);
646 extern void show_item(int);
647 extern void show_news(int);
648 extern void show_product(int);
649 extern void show_updates(int);
651 extern void shp_sel(struct nstr_item *, struct emp_qelem *);
652 extern void shp_nav(struct emp_qelem *, double *, double *, int *, natid);
653 extern int shp_sweep(struct emp_qelem *, int, int, natid);
654 extern int shp_check_nav(struct sctstr *, struct shpstr *);
655 extern int sect_has_dock(struct sctstr *);
656 extern int shp_hardtarget(struct shpstr *);
657 extern int shp_nav_one_sector(struct emp_qelem *, int, natid, int);
658 extern int shp_missile_defense(coord, coord, natid, int);
659 extern void shp_missdef(struct shpstr *, natid);
660 extern double shp_mobcost(struct shpstr *);
661 extern void shp_set_tech(struct shpstr *, int);
663 extern int snxtitem(struct nstr_item *, int, char *, char *);
664 extern void snxtitem_area(struct nstr_item *, int,
666 extern void snxtitem_dist(struct nstr_item *, int, int, int, int);
667 extern void snxtitem_xy(struct nstr_item *, int, coord, coord);
668 extern void snxtitem_all(struct nstr_item *, int);
669 extern void snxtitem_group(struct nstr_item *, int, char);
670 extern void snxtitem_rewind(struct nstr_item *);
671 extern int snxtitem_list(struct nstr_item *, int, int *, int);
672 extern void snxtitem_cargo(struct nstr_item *, int, int, int);
674 extern int snxtsct(struct nstr_sect *, char *);
675 extern void snxtsct_area(struct nstr_sect *, struct range *);
676 extern void xydist_range(coord, coord, int, struct range *);
677 extern void xysize_range(struct range *);
678 extern void snxtsct_all(struct nstr_sect *);
679 extern void snxtsct_rewind(struct nstr_sect *);
680 extern void snxtsct_dist(struct nstr_sect *, coord, coord, int);
682 extern void resupply_all(struct lndstr *);
683 extern void resupply_commod(struct lndstr *, i_type);
684 extern int supply_commod(int, int, int, i_type, int);
685 extern int has_supply(struct lndstr *);
687 extern void takeover_land(struct lndstr *, natid);
688 extern void takeover(struct sctstr *, natid);
689 extern void takeover_ship(struct shpstr *, natid);
690 extern void takeover_plane(struct plnstr *, natid);
693 extern int trechk(natid, natid, int);
697 extern void clear_telegram_is_new(natid);
698 extern int typed_wu(natid, natid, char *, int);
699 extern int wu(natid, natid, char *, ...) ATTRIBUTE((format (printf, 3, 4)));
702 * src/lib/update/ *.c
705 extern int age_people(int, int);
706 extern void age_levels(int);
708 extern void delete_old_announcements(void);
712 extern void dodeliver(struct sctstr *);
714 extern int dodistribute(struct sctstr *, int, char *, double, double);
716 extern void finish_sects(int);
718 extern int new_work(struct sctstr *, int);
719 extern int do_feed(struct sctstr *, struct natstr *, short *, int *, int);
720 extern int feed_people(short *, int);
721 extern double food_needed(short *, int);
722 extern int famine_victims(short *, int);
724 extern int prod_land(int, int, struct bp *, int);
730 extern void mob_sect(void);
731 extern void mob_ship(void);
732 extern void mob_land(void);
733 extern void mob_plane(void);
734 extern void sct_do_upd_mob(struct sctstr *sp);
735 extern void shp_do_upd_mob(struct shpstr *sp);
736 extern void lnd_do_upd_mob(struct lndstr *lp);
737 extern void pln_do_upd_mob(struct plnstr *pp);
739 extern void move_sat(struct plnstr *);
741 extern void prod_nat(int);
743 extern int nav_ship(struct shpstr *);
745 extern int load_it(struct shpstr *, struct sctstr *,
747 extern void unload_it(struct shpstr *);
749 extern void *nxtitemp(struct nstr_item *);
751 extern void do_plague(struct sctstr *, struct natstr *, int);
752 extern int plague_people(struct natstr *, short *, int *, int *, int);
754 extern int prod_plane(int, int, struct bp *, int);
756 extern void populace(struct natstr *, struct sctstr *, int);
757 extern int total_work(int, int, int, int, int, int);
759 extern void tax(struct sctstr *, struct natstr *, int, long *, int *,
761 extern int upd_slmilcosts(natid, int);
762 extern void prepare_sects(int, struct bp *);
763 extern int bank_income(struct sctstr *, int);
765 extern int produce(struct natstr *, struct sctstr *, short *, int, int,
767 extern double prod_eff(int, float);
769 extern int update_removewants(void);
771 extern void revolt(struct sctstr *);
772 extern void guerrilla(struct sctstr *);
774 extern void sail_ship(natid);
776 extern void do_fallout(struct sctstr *, int);
777 extern void spread_fallout(struct sctstr *, int);
778 extern void decay_fallout(struct sctstr *, int);
779 extern void produce_sect(int, int, struct bp *, long [][2]);
781 extern int prod_ship(int, int, struct bp *, int);