2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program 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 2 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, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * land.c: Misc. land unit routines
30 * Known contributors to this file:
42 #include "prototypes.h"
47 adj_units(coord x, coord y, natid own)
52 for (i = DIR_FIRST; i <= DIR_LAST; i++) {
53 getsect(x + diroff[i][0], y + diroff[i][1], §);
54 if (has_units(sect.sct_x, sect.sct_y, own, 0))
61 has_units(coord x, coord y, natid cn, struct lndstr *lp)
66 for (n = 0; ef_read(EF_LAND, n, &land); n++) {
67 if (land.lnd_x != x || land.lnd_y != y)
70 /* Check this unit. If it is this one, we don't want
71 it included in the count. */
72 if (lp->lnd_uid == land.lnd_uid)
75 if (land.lnd_own == cn)
83 has_units_with_mob(coord x, coord y, natid cn)
88 snxtitem_xy(&ni, EF_LAND, x, y);
89 while (nxtitem(&ni, &land)) {
90 if (land.lnd_own != cn)
92 if (land.lnd_mobil > 0)
100 * Is there a engineer unit at X,Y that can help nation CN?
103 has_helpful_engineer(coord x, coord y, natid cn)
108 snxtitem_xy(&ni, EF_LAND, x, y);
109 while (nxtitem(&ni, &land)) {
110 if (land.lnd_own != cn && getrel(getnatp(land.lnd_own), cn) != ALLIED)
112 if (lchr[(int)land.lnd_type].l_flags & L_ENGINEER)