summaryrefslogtreecommitdiff
path: root/games/trek/visual.c
blob: 8417c0f4c8b1a0c43b3edce27f0aacc1b76f14e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
/*	$OpenBSD: visual.c,v 1.7 2016/01/07 14:37:51 mestre Exp $	*/
/*	$NetBSD: visual.c,v 1.3 1995/04/22 10:59:39 cgd Exp $	*/

/*
 * Copyright (c) 1980, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <stdio.h>

#include "getpar.h"
#include "trek.h"

/*
**  VISUAL SCAN
**
**	A visual scan is made in a particular direction of three sectors
**	in the general direction specified.  This takes time, and
**	Klingons can attack you, so it should be done only when sensors
**	are out.
*/

/* This struct[] has the delta x, delta y for particular directions */
struct xy	Visdelta[11] =
{
	{ -1,	-1 },
	{ -1,	 0 },
	{ -1,	 1 },
	{  0,	 1 },
	{  1,	 1 },
	{  1,	 0 },
	{  1,	-1 },
	{  0,	-1 },
	{ -1,	-1 },
	{ -1,	 0 },
	{ -1,	 1 }
};

void
visual(int z)
{
	int		ix, iy, co;
	struct xy	*v;

	co = getintpar("direction");
	if (co < 0 || co > 360)
		return;
	co = (co + 22) / 45;
	v = &Visdelta[co];
	ix = Ship.sectx + v->x;
	iy = Ship.secty + v->y;
	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
		co = '?';
	else
		co = Sect[ix][iy];
	printf("%d,%d %c ", ix, iy, co);
	v++;
	ix = Ship.sectx + v->x;
	iy = Ship.secty + v->y;
	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
		co = '?';
	else
		co = Sect[ix][iy];
	printf("%c ", co);
	v++;
	ix = Ship.sectx + v->x;
	iy = Ship.secty + v->y;
	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
		co = '?';
	else
		co = Sect[ix][iy];
	printf("%c %d,%d\n", co, ix, iy);
	Move.time = 0.05;
	Move.free = 0;
}