1 /* $OpenBSD: impulse.c,v 1.7 2016/01/07 14:37:51 mestre Exp $ */
2 /* $NetBSD: impulse.c,v 1.3 1995/04/22 10:59:03 cgd 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
35 #include "getpar.h"
36 #include "trek.h"
37
38 /**
39 ** move under impulse power
40 **/
41
42 void
impulse(int v)43 impulse(int v)
44 {
45 int course, power, percent;
46 double dist, time;
47
48 if (Ship.cond == DOCKED)
49 {
50 printf("Scotty: Sorry captain, but we are still docked.\n");
51 return;
52 }
53 if (damaged(IMPULSE))
54 {
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 {
64 printf("Scotty: That would consume %d%% of our remaining 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 {
74 printf("Spock: That would take %d%% of our remaining time.\n",
75 percent);
76 if (!getynpar("Are you sure that is wise"))
77 return;
78 printf("(He's finally gone mad)\n");
79 }
80 Move.time = move(0, course, time, 0.095);
81 Ship.energy -= 20 + 100 * Move.time * 0.095;
82 }
83