usr/src/games/trek/setwarp.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted provided
 * that: (1) source distributions retain this entire copyright notice and
 * comment, and (2) distributions including binaries display the following
 * acknowledgement:  ``This product includes software developed by the
 * University of California, Berkeley and its contributors'' in the
 * documentation or other materials provided with the distribution and in
 * all advertising materials mentioning features or use of this software.
 * 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static char sccsid[] = "@(#)setwarp.c   5.4 (Berkeley) 6/1/90";
#endif /* not lint */

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

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

setwarp()
{
        double  warpfac;

        warpfac = getfltpar("Warp factor");
        if (warpfac < 0.0)
                return;
        if (warpfac < 1.0)
                return (printf("Minimum warp speed is 1.0\n"));
        if (warpfac > 10.0)
                return (printf("Maximum speed is warp 10.0\n"));
        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;
}