2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2007, 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 * dir.c: Directional orientation descriptions. Must agree with defines
31 * Known contributors to this file:
38 /* must agree with DIR_ defines */
52 /* must agree with dirch[] and DIR_ defines */
54 {0, 0}, {1, -1}, {2, 0}, {1, 1}, {-1, 1}, {-2, 0}, {-1, -1}, {0, 0},
58 /* this maps a character from a to z into the diroff mappings. It
59 keeps us from having to loop if we don't want to */
60 signed char dirindex[] = {
61 -1, 4, -1, -1, -1, -1, 5, 0, -1, 2, -1, -1, 8,
62 3, -1, -1, -1, -1, -1, -1, 1, 7, -1, -1, 6, -1
65 /* must agree with dirch[] and DIR_ defines */
66 char *routech[][2] = {