games/trek/damage.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  * @(#)damage.c 8.1 (Berkeley) 5/31/93
  30  * $FreeBSD: src/games/trek/damage.c,v 1.4 1999/11/30 03:49:45 billf Exp $
  31  * $DragonFly: src/games/trek/damage.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $
  32  */
  33
  34 #include "trek.h"
  35
  36 /*
  37 **  Schedule Ship.damages to a Device
  38 **
  39 **      Device `dev1' is damaged in an amount `dam'.  Dam is measured
  40 **      in stardates, and is an additional amount of damage.  It should
  41 **      be the amount to occur in non-docked mode.  The adjustment
  42 **      to docked mode occurs automatically if we are docked.
  43 **
  44 **      Note that the repair of the device occurs on a DATE, meaning
  45 **      that the dock() and undock() have to reschedule the event.
  46 */
  47
  48 void
  49 damage(int dev1, double dam)
  50 {
  51         int             i;
  52         struct event    *e;
  53         int             f;
  54         int             dev;
  55
  56         /* ignore zero damages */
  57         if (dam <= 0.0)
  58                 return;
  59         dev = dev1;
  60
  61         printf("\t%s damaged\n", Device[dev].name);
  62
  63         /* find actual length till it will be fixed */
  64         if (Ship.cond == DOCKED)
  65                 dam *= Param.dockfac;
  66         /* set the damage flag */
  67         f = damaged(dev);
  68         if (!f) {
  69                 /* new damages -- schedule a fix */
  70                 schedule(E_FIXDV, dam, 0, 0, dev);
  71                 return;
  72         }
  73         /* device already damaged -- add to existing damages */
  74         /* scan for old damages */
  75         for (i = 0; i < MAXEVENTS; i++) {
  76                 e = &Event[i];
  77                 if (e->evcode != E_FIXDV || e->systemname != dev)
  78                         continue;
  79                 /* got the right one; add on the new damages */
  80                 reschedule(e, e->date - Now.date + dam);
  81                 return;
  82         }
  83         syserr("Cannot find old damages %d\n", dev);
  84 }