trek/setwarp.c

   1 /*      $NetBSD: setwarp.c,v 1.5 1999/09/08 21:45:33 jsm 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. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 #if 0
  39 static char sccsid[] = "@(#)setwarp.c   8.1 (Berkeley) 5/31/93";
  40 #else
  41 __RCSID("$NetBSD: setwarp.c,v 1.5 1999/09/08 21:45:33 jsm Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 #include <stdio.h>
  46 #include "trek.h"
  47 #include "getpar.h"
  48
  49 /*
  50 **  SET WARP FACTOR
  51 **
  52 **      The warp factor is set for future move commands.  It is
  53 **      checked for consistancy.
  54 */
  55
  56 /*ARGSUSED*/
  57 void
  58 setwarp(v)
  59         int v __attribute__((__unused__));
  60 {
  61         double  warpfac;
  62
  63         warpfac = getfltpar("Warp factor");
  64         if (warpfac < 0.0)
  65                 return;
  66         if (warpfac < 1.0) {
  67                 printf("Minimum warp speed is 1.0\n");
  68                 return;
  69         }
  70         if (warpfac > 10.0) {
  71                 printf("Maximum speed is warp 10.0\n");
  72                 return;
  73         }
  74         if (warpfac > 6.0)
  75                 printf("Damage to warp engines may occur above warp 6.0\n");
  76         Ship.warp = warpfac;
  77         Ship.warp2 = Ship.warp * warpfac;
  78         Ship.warp3 = Ship.warp2 * warpfac;
  79 }