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impulse.c revision 1.4 
      1 /*	$NetBSD: impulse.c,v 1.4 1997/10/12 21:24:54 christos 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[] = "@(#)impulse.c	8.1 (Berkeley) 5/31/93";
     40 #else
     41 __RCSID("$NetBSD: impulse.c,v 1.4 1997/10/12 21:24:54 christos Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <stdio.h>
     46 #include "trek.h"
     47 #include "getpar.h"
     48 
     49 /**
     50  **	move under impulse power
     51  **/
     52 
     53 /*ARGSUSED*/
     54 void
     55 impulse(v)
     56 	int v;
     57 {
     58 	int		course;
     59 	int		power;
     60 	double		dist, time;
     61 	int		percent;
     62 
     63 	if (Ship.cond == DOCKED) {
     64 		printf("Scotty: Sorry captain, but we are still docked.\n");
     65 		return;
     66 	}
     67 	if (damaged(IMPULSE)) {
     68 		out(IMPULSE);
     69 		return;
     70 	}
     71 	if (getcodi(&course, &dist))
     72 		return;
     73 	power = 20 + 100 * dist;
     74 	percent = 100 * power / Ship.energy + 0.5;
     75 	if (percent >= 85)
     76 	{
     77 		printf("Scotty: That would consume %d%% of our remaining energy.\n",
     78 			percent);
     79 		if (!getynpar("Are you sure that is wise"))
     80 			return;
     81 		printf("Aye aye, sir\n");
     82 	}
     83 	time = dist / 0.095;
     84 	percent = 100 * time / Now.time + 0.5;
     85 	if (percent >= 85)
     86 	{
     87 		printf("Spock: That would take %d%% of our remaining time.\n",
     88 			percent);
     89 		if (!getynpar("Are you sure that is wise"))
     90 			return;
     91 		printf("(He's finally gone mad)\n");
     92 	}
     93 	Move.time = move(0, course, time, 0.095);
     94 	Ship.energy -= 20 + 100 * Move.time * 0.095;
     95 }
     96