2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2006, 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 * coastal.c: Routines to calculate the coastal flag
30 * Known contributors to this file:
31 * Ron Koenderink, 2005
37 #include "prototypes.h"
42 update_coastal_flag(struct sctstr *sp, struct sctstr *sectp)
47 for (n = 1; n <= 6; n++) { /* Directions */
48 getsect(sp->sct_x + diroff[n][0], sp->sct_y + diroff[n][1], §);
49 if (sectp && sectp->sct_x == sect.sct_x &&
50 sectp->sct_y == sect.sct_y)
52 if (sect.sct_type == SCT_WATER || sect.sct_type == SCT_BTOWER ||
53 sect.sct_type == SCT_BSPAN) {
54 if (!sp->sct_coastal) {
61 if (sp->sct_coastal) {
68 coastal_sea_to_land(struct sctstr *sp, int des)
73 update_coastal_flag(sp, NULL);
75 for (n = 1; n <= 6; n++) { /* Directions */
76 getsect(sp->sct_x + diroff[n][0], sp->sct_y + diroff[n][1], §);
77 update_coastal_flag(§, sp);
82 coastal_land_to_sea(struct sctstr *sp, int des)
90 for (n = 1; n <= 6; ++n) { /* Directions */
91 getsect(sp->sct_x + diroff[n][0], sp->sct_y + diroff[n][1], §);
92 if (!sect.sct_coastal) {
100 set_coastal(struct sctstr *sp, int des)
105 if (sp->sct_type == SCT_WATER || sp->sct_type == SCT_BTOWER ||
106 sp->sct_type == SCT_BSPAN)
109 if (des == SCT_WATER || des == SCT_BTOWER || des== SCT_BSPAN)
112 if (new_water == old_water)
115 coastal_land_to_sea(sp, des);
117 coastal_sea_to_land(sp, des);