games/trek/initquad.c

   1 /*
   2  * Copyright (c) 1980, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * @(#)initquad.c       8.1 (Berkeley) 5/31/93
  34  * $FreeBSD: src/games/trek/initquad.c,v 1.4 1999/11/30 03:49:49 billf Exp $
  35  * $DragonFly: src/games/trek/initquad.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $
  36  */
  37
  38 # include       "trek.h"
  39
  40 /*
  41 **  Paramize Quadrant Upon Entering
  42 **
  43 **      A quadrant is initialized from the information held in the
  44 **      Quad matrix.  Basically, everything is just initialized
  45 **      randomly, except for the starship, which goes into a fixed
  46 **      sector.
  47 **
  48 **      If there are Klingons in the quadrant, the captain is informed
  49 **      that the condition is RED, and he is given a chance to put
  50 **      his shields up if the computer is working.
  51 **
  52 **      The flag `f' is set to disable the check for condition red.
  53 **      This mode is used in situations where you know you are going
  54 **      to be docked, i.e., abandon() and help().
  55 */
  56
  57 void
  58 initquad(int f)
  59 {
  60         int             i, j;
  61         int                     rx, ry;
  62         int                     nbases, nstars;
  63         struct quad     *q;
  64         int                     nholes;
  65
  66         q = &Quad[Ship.quadx][Ship.quady];
  67
  68         /* ignored supernova'ed quadrants (this is checked again later anyway */
  69         if (q->stars < 0)
  70                 return;
  71         Etc.nkling = q->klings;
  72         nbases = q->bases;
  73         nstars = q->stars;
  74         nholes = q->holes;
  75
  76         /* have we blundered into a battle zone w/ shields down? */
  77         if (Etc.nkling > 0 && !f)
  78         {
  79                 printf("Condition RED\n");
  80                 Ship.cond = RED;
  81                 if (!damaged(COMPUTER))
  82                         shield(1);
  83         }
  84
  85         /* clear out the quadrant */
  86         for (i = 0; i < NSECTS; i++)
  87                 for (j = 0; j < NSECTS; j++)
  88                         Sect[i][j] = EMPTY;
  89
  90         /* initialize Enterprise */
  91         Sect[Ship.sectx][Ship.secty] = Ship.ship;
  92
  93         /* initialize Klingons */
  94         for (i = 0; i < Etc.nkling; i++)
  95         {
  96                 sector(&rx, &ry);
  97                 Sect[rx][ry] = KLINGON;
  98                 Etc.klingon[i].x = rx;
  99                 Etc.klingon[i].y = ry;
 100                 Etc.klingon[i].power = Param.klingpwr;
 101                 Etc.klingon[i].srndreq = 0;
 102         }
 103         compkldist(1);
 104
 105         /* initialize star base */
 106         if (nbases > 0)
 107         {
 108                 sector(&rx, &ry);
 109                 Sect[rx][ry] = BASE;
 110                 Etc.starbase.x = rx;
 111                 Etc.starbase.y = ry;
 112         }
 113
 114         /* initialize inhabited starsystem */
 115         if (q->qsystemname != 0)
 116         {
 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         {
 125                 sector(&rx, &ry);
 126                 Sect[rx][ry] = HOLE;
 127         }
 128
 129         /* initialize stars */
 130         for (i = 0; i < nstars; i++)
 131         {
 132                 sector(&rx, &ry);
 133                 Sect[rx][ry] = STAR;
 134         }
 135         Move.newquad = 1;
 136 }
 137
 138 void
 139 sector(int *x, int *y)
 140 {
 141         int             i, j;
 142
 143         do
 144         {
 145                 i = ranf(NSECTS);
 146                 j = ranf(NSECTS);
 147         } while (Sect[i][j] != EMPTY);
 148         *x = i;
 149         *y = j;
 150         return;
 151 }