1 /* $NetBSD: visual.c,v 1.10 2009/08/12 08:54:54 dholland Exp $ */
2
3 /*
4 * Copyright (c) 1980, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)visual.c 8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: visual.c,v 1.10 2009/08/12 08:54:54 dholland Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <stdio.h>
42 #include "trek.h"
43 #include "getpar.h"
44
45 /*
46 ** VISUAL SCAN
47 **
48 ** A visual scan is made in a particular direction of three sectors
49 ** in the general direction specified. This takes time, and
50 ** Klingons can attack you, so it should be done only when sensors
51 ** are out.
52 */
53
54 /* This struct[] has the delta x, delta y for particular directions */
55 static struct xy Visdelta[11] = {
56 { -1, -1 },
57 { -1, 0 },
58 { -1, 1 },
59 { 0, 1 },
60 { 1, 1 },
61 { 1, 0 },
62 { 1, -1 },
63 { 0, -1 },
64 { -1, -1 },
65 { -1, 0 },
66 { -1, 1 }
67 };
68
69 /*ARGSUSED*/
70 void
visual(int z __unused)71 visual(int z __unused)
72 {
73 int ix, iy;
74 int co;
75 struct xy *v;
76
77 co = getintpar("direction");
78 if (co < 0 || co > 360)
79 return;
80 co = (co + 22) / 45;
81 v = &Visdelta[co];
82 ix = Ship.sectx + v->x;
83 iy = Ship.secty + v->y;
84 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
85 co = '?';
86 else
87 co = Sect[ix][iy];
88 printf("%d,%d %c ", ix, iy, co);
89 v++;
90 ix = Ship.sectx + v->x;
91 iy = Ship.secty + v->y;
92 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
93 co = '?';
94 else
95 co = Sect[ix][iy];
96 printf("%c ", co);
97 v++;
98 ix = Ship.sectx + v->x;
99 iy = Ship.secty + v->y;
100 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
101 co = '?';
102 else
103 co = Sect[ix][iy];
104 printf("%c %d,%d\n", co, ix, iy);
105 Move.time = 0.05;
106 Move.free = 0;
107 }
108