Markus Armbruster
4515b84c59
LICENSE to COPYING, because that's where it usually is. Update all the references to these files.
118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* land.c: Misc. land unit routines
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*
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* Known contributors to this file:
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*
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*/
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#include <config.h>
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#include "misc.h"
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#include "sect.h"
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#include "nat.h"
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#include "file.h"
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#include "path.h"
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#include "xy.h"
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#include "land.h"
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#include "nsc.h"
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#include "common.h"
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#include "subs.h"
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int
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adj_units(coord x, coord y, natid own)
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{
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int i;
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struct sctstr sect;
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for (i = DIR_FIRST; i <= DIR_LAST; i++) {
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getsect(x + diroff[i][0], y + diroff[i][1], §);
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if (has_units(sect.sct_x, sect.sct_y, own, 0))
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return 1;
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}
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return 0;
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}
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int
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has_units(coord x, coord y, natid cn, struct lndstr *lp)
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{
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int n;
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struct lndstr land;
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for (n = 0; ef_read(EF_LAND, n, &land); n++) {
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if (land.lnd_x != x || land.lnd_y != y)
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continue;
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if (lp) {
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/* Check this unit. If it is this one, we don't want
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it included in the count. */
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if (lp->lnd_uid == land.lnd_uid)
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continue;
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}
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if (land.lnd_own == cn)
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return 1;
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}
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return 0;
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}
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int
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has_units_with_mob(coord x, coord y, natid cn)
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{
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struct nstr_item ni;
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struct lndstr land;
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snxtitem_xy(&ni, EF_LAND, x, y);
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while (nxtitem(&ni, &land)) {
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if (land.lnd_own != cn)
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continue;
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if (land.lnd_mobil > 0)
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return 1;
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}
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return 0;
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}
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/*
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* Is there a engineer unit at X,Y that can help nation CN?
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*/
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int
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has_helpful_engineer(coord x, coord y, natid cn)
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{
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struct nstr_item ni;
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struct lndstr land;
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snxtitem_xy(&ni, EF_LAND, x, y);
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while (nxtitem(&ni, &land)) {
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if (land.lnd_own != cn && getrel(getnatp(land.lnd_own), cn) != ALLIED)
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continue;
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if (lchr[(int)land.lnd_type].l_flags & L_ENGINEER)
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return 1;
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}
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return 0;
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}
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