games/trek/setwarp.c

   1 /*      @(#)setwarp.c   8.1 (Berkeley) 5/31/93                          */
   2 /*      $NetBSD: setwarp.c,v 1.8 2009/05/24 19:18:44 dholland Exp $     */
   3
   4 /*
   5  * Copyright (c) 1980, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <stdio.h>
  34 #include "trek.h"
  35 #include "getpar.h"
  36
  37 /*
  38 **  SET WARP FACTOR
  39 **
  40 **      The warp factor is set for future move commands.  It is
  41 **      checked for consistancy.
  42 */
  43
  44 /*ARGSUSED*/
  45 void
  46 setwarp(int v __unused)
  47 {
  48         double  warpfac;
  49
  50         warpfac = getfltpar("Warp factor");
  51         if (warpfac < 0.0)
  52                 return;
  53         if (warpfac < 1.0) {
  54                 printf("Minimum warp speed is 1.0\n");
  55                 return;
  56         }
  57         if (warpfac > 10.0) {
  58                 printf("Maximum speed is warp 10.0\n");
  59                 return;
  60         }
  61         if (warpfac > 6.0)
  62                 printf("Damage to warp engines may occur above warp 6.0\n");
  63         Ship.warp = warpfac;
  64         Ship.warp2 = Ship.warp * warpfac;
  65         Ship.warp3 = Ship.warp2 * warpfac;
  66 }