Home | History | Annotate | Line # | Download | only in trek
visual.c revision 1.3 
      1  1.3  cgd /*	$NetBSD: visual.c,v 1.3 1995/04/22 10:59:39 cgd Exp $	*/
      2  1.3  cgd 
      3  1.1  cgd /*
      4  1.3  cgd  * Copyright (c) 1980, 1993
      5  1.3  cgd  *	The Regents of the University of California.  All rights reserved.
      6  1.1  cgd  *
      7  1.1  cgd  * Redistribution and use in source and binary forms, with or without
      8  1.1  cgd  * modification, are permitted provided that the following conditions
      9  1.1  cgd  * are met:
     10  1.1  cgd  * 1. Redistributions of source code must retain the above copyright
     11  1.1  cgd  *    notice, this list of conditions and the following disclaimer.
     12  1.1  cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1  cgd  *    notice, this list of conditions and the following disclaimer in the
     14  1.1  cgd  *    documentation and/or other materials provided with the distribution.
     15  1.1  cgd  * 3. All advertising materials mentioning features or use of this software
     16  1.1  cgd  *    must display the following acknowledgement:
     17  1.1  cgd  *	This product includes software developed by the University of
     18  1.1  cgd  *	California, Berkeley and its contributors.
     19  1.1  cgd  * 4. Neither the name of the University nor the names of its contributors
     20  1.1  cgd  *    may be used to endorse or promote products derived from this software
     21  1.1  cgd  *    without specific prior written permission.
     22  1.1  cgd  *
     23  1.1  cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  1.1  cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  1.1  cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  1.1  cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  1.1  cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  1.1  cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  1.1  cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  1.1  cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  1.1  cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  1.1  cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  1.1  cgd  * SUCH DAMAGE.
     34  1.1  cgd  */
     35  1.1  cgd 
     36  1.1  cgd #ifndef lint
     37  1.3  cgd #if 0
     38  1.3  cgd static char sccsid[] = "@(#)visual.c	8.1 (Berkeley) 5/31/93";
     39  1.3  cgd #else
     40  1.3  cgd static char rcsid[] = "$NetBSD: visual.c,v 1.3 1995/04/22 10:59:39 cgd Exp $";
     41  1.3  cgd #endif
     42  1.1  cgd #endif /* not lint */
     43  1.1  cgd 
     44  1.1  cgd # include	"trek.h"
     45  1.1  cgd 
     46  1.1  cgd /*
     47  1.1  cgd **  VISUAL SCAN
     48  1.1  cgd **
     49  1.1  cgd **	A visual scan is made in a particular direction of three sectors
     50  1.1  cgd **	in the general direction specified.  This takes time, and
     51  1.1  cgd **	Klingons can attack you, so it should be done only when sensors
     52  1.1  cgd **	are out.
     53  1.1  cgd */
     54  1.1  cgd 
     55  1.1  cgd /* This struct[] has the delta x, delta y for particular directions */
     56  1.1  cgd struct xy	Visdelta[11] =
     57  1.1  cgd {
     58  1.1  cgd 	-1,	-1,
     59  1.1  cgd 	-1,	 0,
     60  1.1  cgd 	-1,	 1,
     61  1.1  cgd 	 0,	 1,
     62  1.1  cgd 	 1,	 1,
     63  1.1  cgd 	 1,	 0,
     64  1.1  cgd 	 1,	-1,
     65  1.1  cgd 	 0,	-1,
     66  1.1  cgd 	-1,	-1,
     67  1.1  cgd 	-1,	 0,
     68  1.1  cgd 	-1,	 1
     69  1.1  cgd };
     70  1.1  cgd 
     71  1.1  cgd visual()
     72  1.1  cgd {
     73  1.1  cgd 	register int		ix, iy;
     74  1.1  cgd 	int			co;
     75  1.1  cgd 	register struct xy	*v;
     76  1.1  cgd 
     77  1.1  cgd 	co = getintpar("direction");
     78  1.1  cgd 	if (co < 0 || co > 360)
     79  1.1  cgd 		return;
     80  1.1  cgd 	co = (co + 22) / 45;
     81  1.1  cgd 	v = &Visdelta[co];
     82  1.1  cgd 	ix = Ship.sectx + v->x;
     83  1.1  cgd 	iy = Ship.secty + v->y;
     84  1.1  cgd 	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
     85  1.1  cgd 		co = '?';
     86  1.1  cgd 	else
     87  1.1  cgd 		co = Sect[ix][iy];
     88  1.1  cgd 	printf("%d,%d %c ", ix, iy, co);
     89  1.1  cgd 	v++;
     90  1.1  cgd 	ix = Ship.sectx + v->x;
     91  1.1  cgd 	iy = Ship.secty + v->y;
     92  1.1  cgd 	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
     93  1.1  cgd 		co = '?';
     94  1.1  cgd 	else
     95  1.1  cgd 		co = Sect[ix][iy];
     96  1.1  cgd 	printf("%c ", co);
     97  1.1  cgd 	v++;
     98  1.1  cgd 	ix = Ship.sectx + v->x;
     99  1.1  cgd 	iy = Ship.secty + v->y;
    100  1.1  cgd 	if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
    101  1.1  cgd 		co = '?';
    102  1.1  cgd 	else
    103  1.1  cgd 		co = Sect[ix][iy];
    104  1.1  cgd 	printf("%c %d,%d\n", co, ix, iy);
    105  1.1  cgd 	Move.time = 0.05;
    106  1.1  cgd 	Move.free = 0;
    107  1.1  cgd }
    108