2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2011, 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, 2004-2011
36 #include "commodity.h"
40 #include "prototypes.h"
43 /* Note that timestamps make things tricky. And, we don't
44 * really care about the timestamp, we just care about the rest
45 * of the structure. So, we make a copy, and zero the timestamps
46 * in both copies, and then compare. */
49 obj_changed(struct empobj *obj, size_t sz)
51 union empobj_storage old, tobj;
53 get_empobj(obj->ef_type, obj->uid, &old);
54 memcpy(&tobj, obj, sz);
55 old.gen.timestamp = tobj.gen.timestamp = 0;
56 old.gen.generation = tobj.gen.generation = 0;
57 if (memcmp(&tobj, &old, sz))
59 ef_mark_fresh(obj->ef_type, obj);
64 check_sect_ok(struct sctstr *sectp)
66 if (obj_changed((struct empobj *)sectp, sizeof(*sectp))) {
67 pr("Sector %s has changed!\n",
68 xyas(sectp->sct_x, sectp->sct_y, player->cnum));
75 check_ship_ok(struct shpstr *shipp)
77 if (obj_changed((struct empobj *)shipp, sizeof(*shipp))) {
78 pr("Ship #%d has changed!\n", shipp->shp_uid);
85 check_plane_ok(struct plnstr *planep)
87 if (obj_changed((struct empobj *)planep, sizeof(*planep))) {
88 pr("Plane #%d has changed!\n", planep->pln_uid);
95 check_land_ok(struct lndstr *landp)
97 if (obj_changed((struct empobj *)landp, sizeof(*landp))) {
98 pr("Land unit #%d has changed!\n", landp->lnd_uid);
105 check_nuke_ok(struct nukstr *nukep)
107 if (obj_changed((struct empobj *)nukep, sizeof(*nukep))) {
108 pr("Nuke %d has changed!\n", nukep->nuk_uid);
115 check_loan_ok(struct lonstr *loanp)
117 if (obj_changed((struct empobj *)loanp, sizeof(*loanp))) {
118 pr("Loan %d has changed!\n", loanp->l_uid);
125 check_comm_ok(struct comstr *commp)
127 if (obj_changed((struct empobj *)commp, sizeof(*commp))) {
128 pr("Commodity %d has changed!\n", commp->com_uid);
135 check_trade_ok(struct trdstr *tp)
137 if (obj_changed((struct empobj *)tp, sizeof(*tp))) {
138 pr("Trade lot #%d has changed!\n", tp->trd_uid);