Home | History | Annotate | Line # | Download | only in trek
impulse.c revision 1.3 
      1 /*	$NetBSD: impulse.c,v 1.3 1995/04/22 10:59:03 cgd 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 #ifndef lint
     37 #if 0
     38 static char sccsid[] = "@(#)impulse.c	8.1 (Berkeley) 5/31/93";
     39 #else
     40 static char rcsid[] = "$NetBSD: impulse.c,v 1.3 1995/04/22 10:59:03 cgd Exp $";
     41 #endif
     42 #endif /* not lint */
     43 
     44 # include	"trek.h"
     45 
     46 /**
     47  **	move under impulse power
     48  **/
     49 
     50 impulse()
     51 {
     52 	int			course;
     53 	register int		power;
     54 	double			dist, time;
     55 	register int		percent;
     56 	extern double		move();
     57 
     58 	if (Ship.cond == DOCKED)
     59 		return (printf("Scotty: Sorry captain, but we are still docked.\n"));
     60 	if (damaged(IMPULSE))
     61 		return (out(IMPULSE));
     62 	if (getcodi(&course, &dist))
     63 		return;
     64 	power = 20 + 100 * dist;
     65 	percent = 100 * power / Ship.energy + 0.5;
     66 	if (percent >= 85)
     67 	{
     68 		printf("Scotty: That would consume %d%% of our remaining energy.\n",
     69 			percent);
     70 		if (!getynpar("Are you sure that is wise"))
     71 			return;
     72 		printf("Aye aye, sir\n");
     73 	}
     74 	time = dist / 0.095;
     75 	percent = 100 * time / Now.time + 0.5;
     76 	if (percent >= 85)
     77 	{
     78 		printf("Spock: That would take %d%% of our remaining time.\n",
     79 			percent);
     80 		if (!getynpar("Are you sure that is wise"))
     81 			return;
     82 		printf("(He's finally gone mad)\n");
     83 	}
     84 	Move.time = move(0, course, time, 0.095);
     85 	Ship.energy -= 20 + 100 * Move.time * 0.095;
     86 }
     87