2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2016, 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 * plane.c: Plane post-read and pre-write data massage
29 * Known contributors to this file:
32 * Markus Armbruster, 2006-2016
42 #include "prototypes.h"
47 pln_postread(int n, void *ptr)
49 struct plnstr *pp = ptr;
51 if (pp->pln_uid != n) {
52 logerror("pln_postread: Error - %d != %d, zeroing.\n",
54 memset(pp, 0, sizeof(struct plnstr));
57 player->owner = (player->god || pp->pln_own == player->cnum);
59 if (opt_MOB_ACCESS && pp->pln_own && !update_running)
60 mob_inc_plane(pp, game_tick_to_now(&pp->pln_access));
64 pln_prewrite(int n, void *old, void *new)
66 struct plnstr *oldpp = old;
67 struct plnstr *pp = new;
68 natid own = pp->pln_effic < PLANE_MINEFF ? 0 : pp->pln_own;
69 int ship = pp->pln_ship;
70 int land = pp->pln_land;
72 /* Be careful with writing to *pp, in case oldpp == pp */
79 if (CANT_HAPPEN(ship >= 0 && land >= 0))
81 if (oldpp->pln_ship != ship)
82 pln_carrier_change(pp, EF_SHIP, oldpp->pln_ship, ship);
83 if (oldpp->pln_land != land)
84 pln_carrier_change(pp, EF_LAND, oldpp->pln_land, land);
86 if (oldpp->pln_own != own) {
87 lost_and_found(EF_PLANE, oldpp->pln_own, own,
88 pp->pln_uid, pp->pln_x, pp->pln_y);
89 CANT_HAPPEN(!oldpp->pln_own
90 && unit_update_cargo((struct empobj *)oldpp));
96 if (!own || pp->pln_x != oldpp->pln_x || pp->pln_y != oldpp->pln_y)
97 unit_update_cargo((struct empobj *)pp);
101 prplane(struct plnstr *pp)
103 return prbuf("%s #%d", plchr[(int)pp->pln_type].pl_name, pp->pln_uid);