1: /*      $NetBSD: visual.c,v 1.6 2003/08/07 09:37:55 agc 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 1.6 2003/08/07 09:37:55 agc 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: struct xy       Visdelta[11] =
   56: {
   57:         { -1,  -1 },
   58:         { -1,   0 },
   59:         { -1,   1 },
   60:         {  0,   1 },
   61:         {  1,   1 },
   62:         {  1,   0 },
   63:         {  1,  -1 },
   64:         {  0,  -1 },
   65:         { -1,  -1 },
   66:         { -1,   0 },
   67:         { -1,   1 }
   68: };
   69: 
   70: /*ARGSUSED*/
   71: void
   72: visual(z)
   73:         int z __attribute__((__unused__));
   74: {
   75:         int            ix, iy;
   76:         int            co;
   77:         struct xy      *v;
   78: 
   79:         co = getintpar("direction");
   80:         if (co < 0 || co > 360)
   81:                 return;
   82:         co = (co + 22) / 45;
   83:         v = &Visdelta[co];
   84:         ix = Ship.sectx + v->x;
   85:         iy = Ship.secty + v->y;
   86:         if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
   87:                 co = '?';
   88:         else
   89:                 co = Sect[ix][iy];
   90:         printf("%d,%d %c ", ix, iy, co);
   91:         v++;
   92:         ix = Ship.sectx + v->x;
   93:         iy = Ship.secty + v->y;
   94:         if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
   95:                 co = '?';
   96:         else
   97:                 co = Sect[ix][iy];
   98:         printf("%c ", co);
   99:         v++;
  100:         ix = Ship.sectx + v->x;
  101:         iy = Ship.secty + v->y;
  102:         if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
  103:                 co = '?';
  104:         else
  105:                 co = Sect[ix][iy];
  106:         printf("%c %d,%d\n", co, ix, iy);
  107:         Move.time = 0.05;
  108:         Move.free = 0;
  109: }