empserver/src/lib/subs/land.c

104 lines
2.9 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2010, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---
*
* See files README, COPYING and CREDITS in the root of the source
* tree for related information and legal notices. It is expected
* that future projects/authors will amend these files as needed.
*
* ---
*
* land.c: Land unit post-read and pre-write
*
* Known contributors to this file:
* Steve McClure, 1996
* Markus Armbruster, 2004-2008
*/
#include <config.h>
#include "file.h"
#include "land.h"
#include "lost.h"
#include "misc.h"
#include "optlist.h"
#include "player.h"
#include "prototypes.h"
#include "unit.h"
void
lnd_postread(int n, void *ptr)
{
struct lndstr *lp = ptr;
if (lp->lnd_uid != n) {
logerror("lnd_postread: Error - %d != %d, zeroing.\n",
lp->lnd_uid, n);
memset(lp, 0, sizeof(struct lndstr));
}
if (opt_MOB_ACCESS)
lnd_do_upd_mob(lp);
player->owner = (player->god || lp->lnd_own == player->cnum);
}
void
lnd_prewrite(int n, void *old, void *new)
{
struct lndstr *oldlp = old;
struct lndstr *lp = new;
natid own = lp->lnd_effic < LAND_MINEFF ? 0 : lp->lnd_own;
if (!own) {
lp->lnd_effic = 0;
lp->lnd_ship = lp->lnd_land = -1;
}
item_prewrite(lp->lnd_item);
if (CANT_HAPPEN(lp->lnd_ship >= 0 && lp->lnd_land >= 0))
lp->lnd_land = -1;
if (oldlp->lnd_ship != lp->lnd_ship)
lnd_carrier_change(lp, EF_SHIP, oldlp->lnd_ship, lp->lnd_ship);
if (oldlp->lnd_land != lp->lnd_land)
lnd_carrier_change(lp, EF_LAND, oldlp->lnd_land, lp->lnd_land);
/* We've avoided assigning to lp->lnd_own, in case oldlp == lp */
if (oldlp->lnd_own != own)
lost_and_found(EF_LAND, oldlp->lnd_own, own,
lp->lnd_uid, lp->lnd_x, lp->lnd_y);
lp->lnd_own = own;
if (!own || lp->lnd_x != oldlp->lnd_x || lp->lnd_y != oldlp->lnd_y)
unit_update_cargo((struct empobj *)lp);
}
void
lnd_oninit(void *ptr)
{
struct lndstr *lp = ptr;
lp->lnd_ship = lp->lnd_land = -1;
}
char *
prland(struct lndstr *lp)
{
return prbuf("%s #%d", lchr[(int)lp->lnd_type].l_name, lp->lnd_uid);
}