games/trek/checkcond.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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#)checkcond.c      8.1 (Berkeley) 5/31/93
  30  * $FreeBSD: src/games/trek/checkcond.c,v 1.4 1999/11/30 03:49:44 billf Exp $
  31  * $DragonFly: src/games/trek/checkcond.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $
  32  */
  33
  34 #include "trek.h"
  35
  36 /*
  37 **  Check for Condition After a Move
  38 **
  39 **      Various ship conditions are checked.  First we check
  40 **      to see if we have already lost the game, due to running
  41 **      out of life support reserves, running out of energy,
  42 **      or running out of crew members.  The check for running
  43 **      out of time is in events().
  44 **
  45 **      If we are in automatic override mode (Etc.nkling < 0), we
  46 **      don't want to do anything else, lest we call autover
  47 **      recursively.
  48 **
  49 **      In the normal case, if there is a supernova, we call
  50 **      autover() to help us escape.  If after calling autover()
  51 **      we are still in the grips of a supernova, we get burnt
  52 **      up.
  53 **
  54 **      If there are no Klingons in this quadrant, we nullify any
  55 **      distress calls which might exist.
  56 **
  57 **      We then set the condition code, based on the energy level
  58 **      and battle conditions.
  59 */
  60
  61 void
  62 checkcond(void)
  63 {
  64         /* see if we are still alive and well */
  65         if (Ship.reserves < 0.0)
  66                 lose(L_NOLIFE);
  67         if (Ship.energy <= 0)
  68                 lose(L_NOENGY);
  69         if (Ship.crew <= 0)
  70                 lose(L_NOCREW);
  71         /* if in auto override mode, ignore the rest */
  72         if (Etc.nkling < 0)
  73                 return;
  74         /* call in automatic override if appropriate */
  75         if (Quad[Ship.quadx][Ship.quady].stars < 0)
  76                 autover();
  77         if (Quad[Ship.quadx][Ship.quady].stars < 0)
  78                 lose(L_SNOVA);
  79         /* nullify distress call if appropriate */
  80         if (Etc.nkling <= 0)
  81                 killd(Ship.quadx, Ship.quady, 1);
  82
  83         /* set condition code */
  84         if (Ship.cond == DOCKED)
  85                 return;
  86
  87         if (Etc.nkling > 0) {
  88                 Ship.cond = RED;
  89                 return;
  90         }
  91         if (Ship.energy < Param.energylow) {
  92                 Ship.cond = YELLOW;
  93                 return;
  94         }
  95         Ship.cond = GREEN;
  96         return;
  97 }