2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2012, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire 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 3 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, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * check.c: Check a sector, plane, land unit, ship or nuke
29 * Known contributors to this file:
31 * Markus Armbruster, 2004-2012
37 #include "commodity.h"
41 #include "prototypes.h"
44 /* Note that timestamps make things tricky. And, we don't
45 * really care about the timestamp, we just care about the rest
46 * of the structure. So, we make a copy, and zero the timestamps
47 * in both copies, and then compare. */
50 obj_changed(struct empobj *obj)
52 union empobj_storage old, tobj;
55 if (!get_empobj(obj->ef_type, obj->uid, &old))
57 sz = empfile[obj->ef_type].size;
58 memcpy(&tobj, obj, sz);
59 old.gen.timestamp = tobj.gen.timestamp = 0;
60 old.gen.generation = tobj.gen.generation = 0;
61 if (memcmp(&tobj, &old, sz))
63 ef_mark_fresh(obj->ef_type, obj);
68 check_obj_ok(struct empobj *obj)
72 if (obj_changed(obj)) {
73 if (obj->ef_type == EF_SECTOR)
74 pr("Sector %s has changed!\n",
75 xyas(obj->x, obj->y, player->cnum));
77 s = ef_nameof_pretty(obj->ef_type);
78 pr("%c%s %d has changed!\n", toupper(*s), s + 1, obj->uid);
86 check_sect_ok(struct sctstr *sectp)
88 return check_obj_ok((struct empobj *)sectp);
92 check_ship_ok(struct shpstr *shipp)
94 return check_obj_ok((struct empobj *)shipp);
98 check_plane_ok(struct plnstr *planep)
100 return check_obj_ok((struct empobj *)planep);
104 check_land_ok(struct lndstr *landp)
106 return check_obj_ok((struct empobj *)landp);
110 check_nuke_ok(struct nukstr *nukep)
112 return check_obj_ok((struct empobj *)nukep);
116 check_loan_ok(struct lonstr *loanp)
118 return check_obj_ok((struct empobj *)loanp);
122 check_comm_ok(struct comstr *commp)
124 return check_obj_ok((struct empobj *)commp);
128 check_trade_ok(struct trdstr *tp)
130 return check_obj_ok((struct empobj *)tp);