empserver/src/lib/common/bridgefall.c

175 lines
4.8 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2008, 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.
*
* ---
*
* bridgefall.c: Knock a bridge down
*
* Known contributors to this file:
* Steve McClure, 1998
*/
#include <config.h>
#include "file.h"
#include "land.h"
#include "lost.h"
#include "misc.h"
#include "nat.h"
#include "nsc.h"
#include "nuke.h"
#include "optlist.h"
#include "path.h"
#include "plague.h"
#include "plane.h"
#include "prototypes.h"
#include "sect.h"
#include "xy.h"
void
bridgefall(struct sctstr *sp, struct emp_qelem *list)
{
int i;
int j;
struct sctstr sect;
struct sctstr bh_sect;
int nx;
int ny;
int nnx;
int nny;
for (i = 1; i <= 6; i++) {
nx = sp->sct_x + diroff[i][0];
ny = sp->sct_y + diroff[i][1];
getsect(nx, ny, &sect);
if (sect.sct_type != SCT_BSPAN)
continue;
for (j = 1; j <= 6; j++) {
nnx = nx + diroff[j][0];
nny = ny + diroff[j][1];
if (nnx == sp->sct_x && nny == sp->sct_y)
continue;
getsect(nnx, nny, &bh_sect);
if (bh_sect.sct_type == SCT_BHEAD &&
bh_sect.sct_newtype == SCT_BHEAD)
break;
if (bh_sect.sct_type == SCT_BTOWER)
break;
/* With EASY_BRIDGES, it just has to be next to any
land */
if (opt_EASY_BRIDGES) {
if (bh_sect.sct_type != SCT_WATER &&
bh_sect.sct_type != SCT_BSPAN)
break;
}
}
if (j > 6) {
knockdown(&sect, list);
putsect(&sect);
}
}
}
/* Knock down a bridge span. Note that this does NOT write the
* sector out to the database, it's up to the caller to do that. */
void
knockdown(struct sctstr *sp, struct emp_qelem *list)
{
struct lndstr land;
struct plnstr plane;
struct nukstr nuke;
struct nstr_item ni;
struct natstr *np;
mpr(sp->sct_own,
"Crumble... SCREEEECH! Splash! Bridge%s falls at %s!\n",
sp->sct_type == SCT_BTOWER ? " tower" : "",
xyas(sp->sct_x, sp->sct_y, sp->sct_own));
sp->sct_type = SCT_WATER;
sp->sct_newtype = SCT_WATER;
makelost(EF_SECTOR, sp->sct_own, 0, sp->sct_x, sp->sct_y);
sp->sct_own = 0;
sp->sct_oldown = 0;
sp->sct_mobil = 0;
sp->sct_effic = 0;
/* Sink all the units */
snxtitem_xy(&ni, EF_LAND, sp->sct_x, sp->sct_y);
while (nxtitem(&ni, &land)) {
if (land.lnd_own == 0)
continue;
if (land.lnd_ship >= 0)
continue;
np = getnatp(land.lnd_own);
if (np->nat_flags & NF_BEEP)
mpr(land.lnd_own, "\07");
mpr(land.lnd_own, " AARGH! %s tumbles to its doom!\n",
prland(&land));
land.lnd_effic = 0;
putland(land.lnd_uid, &land);
}
/* Sink all the planes */
snxtitem_xy(&ni, EF_PLANE, sp->sct_x, sp->sct_y);
while (nxtitem(&ni, &plane)) {
if (plane.pln_own == 0)
continue;
if (plane.pln_flags & PLN_LAUNCHED)
continue;
if (plane.pln_ship >= 0)
continue;
/* Is this plane flying in this list? */
if (ac_isflying(&plane, list))
continue;
np = getnatp(plane.pln_own);
if (np->nat_flags & NF_BEEP)
mpr(plane.pln_own, "\07");
mpr(plane.pln_own, " AARGH! %s tumbles to its doom!\n",
prplane(&plane));
plane.pln_effic = 0;
putplane(plane.pln_uid, &plane);
}
/* Sink all the nukes */
snxtitem_xy(&ni, EF_NUKE, sp->sct_x, sp->sct_y);
while (nxtitem(&ni, &nuke)) {
if (nuke.nuk_own == 0)
continue;
if (nuke.nuk_plane >= 0)
continue;
np = getnatp(nuke.nuk_own);
if (np->nat_flags & NF_BEEP)
mpr(nuke.nuk_own, "\07");
mpr(nuke.nuk_own, " %s sinks to the bottom of the sea!\n",
prnuke(&nuke));
nuke.nuk_effic = 0;
putnuke(nuke.nuk_uid, &nuke);
}
memset(sp->sct_item, 0, sizeof(sp->sct_item));
memset(sp->sct_del, 0, sizeof(sp->sct_del));
memset(sp->sct_dist, 0, sizeof(sp->sct_dist));
sp->sct_pstage = PLG_HEALTHY;
sp->sct_ptime = 0;
sp->sct_che = 0;
sp->sct_che_target = 0;
}