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setwarp.c revision 1.2 
      1 /*
      2  * Copyright (c) 1980 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 /*static char sccsid[] = "from: @(#)setwarp.c	5.4 (Berkeley) 6/1/90";*/
     36 static char rcsid[] = "$Id: setwarp.c,v 1.2 1993/08/01 18:49:59 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 # include	"trek.h"
     40 # include	"getpar.h"
     41 
     42 /*
     43 **  SET WARP FACTOR
     44 **
     45 **	The warp factor is set for future move commands.  It is
     46 **	checked for consistancy.
     47 */
     48 
     49 setwarp()
     50 {
     51 	double	warpfac;
     52 
     53 	warpfac = getfltpar("Warp factor");
     54 	if (warpfac < 0.0)
     55 		return;
     56 	if (warpfac < 1.0)
     57 		return (printf("Minimum warp speed is 1.0\n"));
     58 	if (warpfac > 10.0)
     59 		return (printf("Maximum speed is warp 10.0\n"));
     60 	if (warpfac > 6.0)
     61 		printf("Damage to warp engines may occur above warp 6.0\n");
     62 	Ship.warp = warpfac;
     63 	Ship.warp2 = Ship.warp * warpfac;
     64 	Ship.warp3 = Ship.warp2 * warpfac;
     65 }
     66