Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most
[dragonfly.git] / games / trek / shield.c
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1/*
2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. 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.
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32 *
33 * @(#)shield.c 8.1 (Berkeley) 5/31/93
34 * $FreeBSD: src/games/trek/shield.c,v 1.5 1999/11/30 03:49:54 billf Exp $
35 * $DragonFly: src/games/trek/shield.c,v 1.2 2003/06/17 04:25:25 dillon Exp $
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36 */
37
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38# include "trek.h"
39# include "getpar.h"
40
41/*
42** SHIELD AND CLOAKING DEVICE CONTROL
43**
44** 'f' is one for auto shield up (in case of Condition RED),
45** zero for shield control, and negative one for cloaking
46** device control.
47**
48** Called with an 'up' or 'down' on the same line, it puts
49** the shields/cloak into the specified mode. Otherwise it
50** reports to the user the current mode, and asks if she wishes
51** to change.
52**
53** This is not a free move. Hits that occur as a result of
54** this move appear as though the shields are half up/down,
55** so you get partial hits.
56*/
57
58struct cvntab Udtab[] =
59{
60 "u", "p", (int (*)())1, 0,
61 "d", "own", 0, 0,
62 0
63};
64
65shield(f)
66int f;
67{
68 int i;
69 char c;
70 struct cvntab *r;
71 char s[100];
72 char *device, *dev2, *dev3;
73 int ind;
74 char *stat;
75
76 if (f > 0 && (Ship.shldup || damaged(SRSCAN)))
77 return;
78 if (f < 0)
79 {
80 /* cloaking device */
81 if (Ship.ship == QUEENE)
82 return (printf("Ye Faire Queene does not have the cloaking device.\n"));
83 device = "Cloaking device";
84 dev2 = "is";
85 ind = CLOAK;
86 dev3 = "it";
87 stat = &Ship.cloaked;
88 }
89 else
90 {
91 /* shields */
92 device = "Shields";
93 dev2 = "are";
94 dev3 = "them";
95 ind = SHIELD;
96 stat = &Ship.shldup;
97 }
98 if (damaged(ind))
99 {
100 if (f <= 0)
101 out(ind);
102 return;
103 }
104 if (Ship.cond == DOCKED)
105 {
106 printf("%s %s down while docked\n", device, dev2);
107 return;
108 }
109 if (f <= 0 && !testnl())
110 {
111 r = getcodpar("Up or down", Udtab);
112 i = (long) r->value;
113 }
114 else
115 {
116 if (*stat)
117 (void)sprintf(s, "%s %s up. Do you want %s down", device, dev2, dev3);
118 else
119 (void)sprintf(s, "%s %s down. Do you want %s up", device, dev2, dev3);
120 if (!getynpar(s))
121 return;
122 i = !*stat;
123 }
124 if (*stat == i)
125 {
126 printf("%s already ", device);
127 if (i)
128 printf("up\n");
129 else
130 printf("down\n");
131 return;
132 }
133 if (i)
134 if (f >= 0)
135 Ship.energy -= Param.shupengy;
136 else
137 Ship.cloakgood = 0;
138 Move.free = 0;
139 if (f >= 0)
140 Move.shldchg = 1;
141 *stat = i;
142 return;
143}