trek/setwarp.c

   1 /*      $NetBSD: setwarp.c,v 1.7 2007/12/15 19:44:45 perry 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[] = "@(#)setwarp.c   8.1 (Berkeley) 5/31/93";
  36 #else
  37 __RCSID("$NetBSD: setwarp.c,v 1.7 2007/12/15 19:44:45 perry Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <stdio.h>
  42 #include "trek.h"
  43 #include "getpar.h"
  44
  45 /*
  46 **  SET WARP FACTOR
  47 **
  48 **      The warp factor is set for future move commands.  It is
  49 **      checked for consistancy.
  50 */
  51
  52 /*ARGSUSED*/
  53 void
  54 setwarp(v)
  55         int v __unused;
  56 {
  57         double  warpfac;
  58
  59         warpfac = getfltpar("Warp factor");
  60         if (warpfac < 0.0)
  61                 return;
  62         if (warpfac < 1.0) {
  63                 printf("Minimum warp speed is 1.0\n");
  64                 return;
  65         }
  66         if (warpfac > 10.0) {
  67                 printf("Maximum speed is warp 10.0\n");
  68                 return;
  69         }
  70         if (warpfac > 6.0)
  71                 printf("Damage to warp engines may occur above warp 6.0\n");
  72         Ship.warp = warpfac;
  73         Ship.warp2 = Ship.warp * warpfac;
  74         Ship.warp3 = Ship.warp2 * warpfac;
  75 }