1 /* @(#)impulse.c 8.1 (Berkeley) 5/31/93 */
2 /* $NetBSD: impulse.c,v 1.10 2009/05/24 22:55:03 dholland Exp $ */
3
4 /*
5 * Copyright (c) 1980, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <stdio.h>
34 #include "trek.h"
35 #include "getpar.h"
36
37 /**
38 ** move under impulse power
39 **/
40
41 /*ARGSUSED*/
42 void
impulse(int v __unused)43 impulse(int v __unused)
44 {
45 int course;
46 int power;
47 double dist, time;
48 int percent;
49
50 if (Ship.cond == DOCKED) {
51 printf("Scotty: Sorry captain, but we are still docked.\n");
52 return;
53 }
54 if (damaged(IMPULSE)) {
55 out(IMPULSE);
56 return;
57 }
58 if (getcodi(&course, &dist))
59 return;
60 power = 20 + 100 * dist;
61 percent = 100 * power / Ship.energy + 0.5;
62 if (percent >= 85) {
63 printf("Scotty: That would consume %d%% of our remaining "
64 "energy.\n",
65 percent);
66 if (!getynpar("Are you sure that is wise"))
67 return;
68 printf("Aye aye, sir\n");
69 }
70 time = dist / 0.095;
71 percent = 100 * time / Now.time + 0.5;
72 if (percent >= 85) {
73 printf("Spock: That would take %d%% of our remaining time.\n",
74 percent);
75 if (!getynpar("Are you sure that is wise"))
76 return;
77 printf("(He's finally gone mad)\n");
78 }
79 Move.time = move(0, course, time, 0.095);
80 Ship.energy -= 20 + 100 * Move.time * 0.095;
81 }
82