root/games/trek/setwarp.c
/*      $OpenBSD: setwarp.c,v 1.6 2016/01/07 14:37:51 mestre Exp $      */
/*      $NetBSD: setwarp.c,v 1.3 1995/04/22 10:59:27 cgd Exp $  */

/*
 * Copyright (c) 1980, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <stdio.h>

#include "getpar.h"
#include "trek.h"

/*
**  SET WARP FACTOR
**
**      The warp factor is set for future move commands.  It is
**      checked for consistancy.
*/

void
setwarp(int v)
{
        double  warpfac;

        warpfac = getfltpar("Warp factor");
        if (warpfac < 0.0)
                return;
        if (warpfac < 1.0)
        {
                printf("Minimum warp speed is 1.0\n");
                return;
        }
        if (warpfac > 10.0)
        {
                printf("Maximum speed is warp 10.0\n");
                return;
        }
        if (warpfac > 6.0)
                printf("Damage to warp engines may occur above warp 6.0\n");
        Ship.warp = warpfac;
        Ship.warp2 = Ship.warp * warpfac;
        Ship.warp3 = Ship.warp2 * warpfac;
}