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. 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  * @(#)checkcond.c      8.1 (Berkeley) 5/31/93
  34  * $FreeBSD: src/games/trek/checkcond.c,v 1.4 1999/11/30 03:49:44 billf Exp $
  35  * $DragonFly: src/games/trek/checkcond.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $
  36  */
  37
  38 # include       "trek.h"
  39
  40 /*
  41 **  Check for Condition After a Move
  42 **
  43 **      Various ship conditions are checked.  First we check
  44 **      to see if we have already lost the game, due to running
  45 **      out of life support reserves, running out of energy,
  46 **      or running out of crew members.  The check for running
  47 **      out of time is in events().
  48 **
  49 **      If we are in automatic override mode (Etc.nkling < 0), we
  50 **      don't want to do anything else, lest we call autover
  51 **      recursively.
  52 **
  53 **      In the normal case, if there is a supernova, we call
  54 **      autover() to help us escape.  If after calling autover()
  55 **      we are still in the grips of a supernova, we get burnt
  56 **      up.
  57 **
  58 **      If there are no Klingons in this quadrant, we nullify any
  59 **      distress calls which might exist.
  60 **
  61 **      We then set the condition code, based on the energy level
  62 **      and battle conditions.
  63 */
  64
  65 void
  66 checkcond(void)
  67 {
  68         /* see if we are still alive and well */
  69         if (Ship.reserves < 0.0)
  70                 lose(L_NOLIFE);
  71         if (Ship.energy <= 0)
  72                 lose(L_NOENGY);
  73         if (Ship.crew <= 0)
  74                 lose(L_NOCREW);
  75         /* if in auto override mode, ignore the rest */
  76         if (Etc.nkling < 0)
  77                 return;
  78         /* call in automatic override if appropriate */
  79         if (Quad[Ship.quadx][Ship.quady].stars < 0)
  80                 autover();
  81         if (Quad[Ship.quadx][Ship.quady].stars < 0)
  82                 lose(L_SNOVA);
  83         /* nullify distress call if appropriate */
  84         if (Etc.nkling <= 0)
  85                 killd(Ship.quadx, Ship.quady, 1);
  86
  87         /* set condition code */
  88         if (Ship.cond == DOCKED)
  89                 return;
  90
  91         if (Etc.nkling > 0)
  92         {
  93                 Ship.cond = RED;
  94                 return;
  95         }
  96         if (Ship.energy < Param.energylow)
  97         {
  98                 Ship.cond = YELLOW;
  99                 return;
 100         }
 101         Ship.cond = GREEN;
 102         return;
 103 }