games/trek/autover.c

   1 /*      $NetBSD: autover.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[] = "@(#)autover.c   8.1 (Berkeley) 5/31/93";
  36 #else
  37 __RCSID("$NetBSD: autover.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 **  Automatic Override
  46 **
  47 **      If we should be so unlucky as to be caught in a quadrant
  48 **      with a supernova in it, this routine is called.  It is
  49 **      called from checkcond().
  50 **
  51 **      It sets you to a random warp (guaranteed to be over 6.0)
  52 **      and starts sending you off "somewhere" (whereever that is).
  53 **
  54 **      Please note that it is VERY important that you reset your
  55 **      warp speed after the automatic override is called.  The new
  56 **      warp factor does not stay in effect for just this routine.
  57 **
  58 **      This routine will never try to send you more than sqrt(2)
  59 **      quadrants, since that is all that is needed.
  60 */
  61
  62 void
  63 autover(void)
  64 {
  65         double                  dist;
  66         int             course;
  67
  68         printf("\07RED ALERT:  The %s is in a supernova quadrant\n",
  69                 Ship.shipname);
  70         printf("***  Emergency override attempts to hurl %s to safety\n",
  71                 Ship.shipname);
  72         /* let's get our ass out of here */
  73         Ship.warp = 6.0 + 2.0 * franf();
  74         Ship.warp2 = Ship.warp * Ship.warp;
  75         Ship.warp3 = Ship.warp2 * Ship.warp;
  76         dist = 0.75 * Ship.energy / (Ship.warp3 * (Ship.shldup + 1));
  77         if (dist > 1.4142)
  78                 dist = 1.4142;
  79         course = ranf(360);
  80         Etc.nkling = -1;
  81         Ship.cond = RED;
  82         warp(-1, course, dist);
  83         attack(0);
  84 }