games/trek/initquad.c

   1 /*      $NetBSD: initquad.c,v 1.6 2009/05/24 19:18:44 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[] = "@(#)initquad.c  8.1 (Berkeley) 5/31/93";
  36 #else
  37 __RCSID("$NetBSD: initquad.c,v 1.6 2009/05/24 19:18:44 dholland Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <stdio.h>
  42 #include "trek.h"
  43
  44 /*
  45 **  Paramize Quadrant Upon Entering
  46 **
  47 **      A quadrant is initialized from the information held in the
  48 **      Quad matrix.  Basically, everything is just initialized
  49 **      randomly, except for the starship, which goes into a fixed
  50 **      sector.
  51 **
  52 **      If there are Klingons in the quadrant, the captain is informed
  53 **      that the condition is RED, and he is given a chance to put
  54 **      his shields up if the computer is working.
  55 **
  56 **      The flag `f' is set to disable the check for condition red.
  57 **      This mode is used in situations where you know you are going
  58 **      to be docked, i.e., abandon() and help().
  59 */
  60
  61 void
  62 initquad(int f)
  63 {
  64         int             i, j;
  65         int             rx, ry;
  66         int             nbases, nstars;
  67         struct quad     *q;
  68         int             nholes;
  69
  70         q = &Quad[Ship.quadx][Ship.quady];
  71
  72         /* ignored supernova'ed quadrants (this is checked again later anyway */
  73         if (q->stars < 0)
  74                 return;
  75         Etc.nkling = q->klings;
  76         nbases = q->bases;
  77         nstars = q->stars;
  78         nholes = q->holes;
  79
  80         /* have we blundered into a battle zone w/ shields down? */
  81         if (Etc.nkling > 0 && !f) {
  82                 printf("Condition RED\n");
  83                 Ship.cond = RED;
  84                 if (!damaged(COMPUTER))
  85                         shield(1);
  86         }
  87
  88         /* clear out the quadrant */
  89         for (i = 0; i < NSECTS; i++)
  90                 for (j = 0; j < NSECTS; j++)
  91                         Sect[i][j] = EMPTY;
  92
  93         /* initialize Enterprise */
  94         Sect[Ship.sectx][Ship.secty] = Ship.ship;
  95
  96         /* initialize Klingons */
  97         for (i = 0; i < Etc.nkling; i++) {
  98                 sector(&rx, &ry);
  99                 Sect[rx][ry] = KLINGON;
 100                 Etc.klingon[i].x = rx;
 101                 Etc.klingon[i].y = ry;
 102                 Etc.klingon[i].power = Param.klingpwr;
 103                 Etc.klingon[i].srndreq = 0;
 104         }
 105         compkldist(1);
 106
 107         /* initialize star base */
 108         if (nbases > 0) {
 109                 sector(&rx, &ry);
 110                 Sect[rx][ry] = BASE;
 111                 Etc.starbase.x = rx;
 112                 Etc.starbase.y = ry;
 113         }
 114
 115         /* initialize inhabited starsystem */
 116         if (q->qsystemname != 0) {
 117                 sector(&rx, &ry);
 118                 Sect[rx][ry] = INHABIT;
 119                 nstars -= 1;
 120         }
 121
 122         /* initialize black holes */
 123         for (i = 0; i < nholes; i++) {
 124                 sector(&rx, &ry);
 125                 Sect[rx][ry] = HOLE;
 126         }
 127
 128         /* initialize stars */
 129         for (i = 0; i < nstars; i++) {
 130                 sector(&rx, &ry);
 131                 Sect[rx][ry] = STAR;
 132         }
 133         Move.newquad = 1;
 134 }
 135
 136
 137 void
 138 sector(int *x, int *y)
 139 {
 140         int     i, j;
 141
 142         do {
 143                 i = ranf(NSECTS);
 144                 j = ranf(NSECTS);
 145         } while (Sect[i][j] != EMPTY);
 146         *x = i;
 147         *y = j;
 148         return;
 149 }