Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most
[dragonfly.git] / games / trek / snova.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 * @(#)snova.c 8.1 (Berkeley) 5/31/93
34 * $FreeBSD: src/games/trek/snova.c,v 1.4 1999/11/30 03:49:54 billf Exp $
35 * $DragonFly: src/games/trek/snova.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
40/*
41** CAUSE SUPERNOVA TO OCCUR
42**
43** A supernova occurs. If 'ix' < 0, a random quadrant is chosen;
44** otherwise, the current quadrant is taken, and (ix, iy) give
45** the sector quadrants of the star which is blowing up.
46**
47** If the supernova turns out to be in the quadrant you are in,
48** you go into "emergency override mode", which tries to get you
49** out of the quadrant as fast as possible. However, if you
50** don't have enough fuel, or if you by chance run into something,
51** or some such thing, you blow up anyway. Oh yeh, if you are
52** within two sectors of the star, there is nothing that can
53** be done for you.
54**
55** When a star has gone supernova, the quadrant becomes uninhab-
56** itable for the rest of eternity, i.e., the game. If you ever
57** try stopping in such a quadrant, you will go into emergency
58** override mode.
59*/
60
61snova(x, y)
62int x, y;
63{
64 int qx, qy;
65 int ix, iy;
66 int f;
67 int dx, dy;
68 int n;
69 struct quad *q;
70
71 f = 0;
72 ix = x;
73 if (ix < 0)
74 {
75 /* choose a quadrant */
76 while (1)
77 {
78 qx = ranf(NQUADS);
79 qy = ranf(NQUADS);
80 q = &Quad[qx][qy];
81 if (q->stars > 0)
82 break;
83 }
84 if (Ship.quadx == qx && Ship.quady == qy)
85 {
86 /* select a particular star */
87 n = ranf(q->stars);
88 for (ix = 0; ix < NSECTS; ix++)
89 {
90 for (iy = 0; iy < NSECTS; iy++)
91 if (Sect[ix][iy] == STAR || Sect[ix][iy] == INHABIT)
92 if ((n -= 1) <= 0)
93 break;
94 if (n <= 0)
95 break;
96 }
97 f = 1;
98 }
99 }
100 else
101 {
102 /* current quadrant */
103 iy = y;
104 qx = Ship.quadx;
105 qy = Ship.quady;
106 q = &Quad[qx][qy];
107 f = 1;
108 }
109 if (f)
110 {
111 /* supernova is in same quadrant as Enterprise */
112 printf("\a\nRED ALERT: supernova occuring at %d,%d\n", ix, iy);
113 dx = ix - Ship.sectx;
114 dy = iy - Ship.secty;
115 if (dx * dx + dy * dy <= 2)
116 {
117 printf("*** Emergency override attem");
118 sleep(1);
119 printf("\n");
120 lose(L_SNOVA);
121 }
122 q->scanned = 1000;
123 }
124 else
125 {
126 if (!damaged(SSRADIO))
127 {
128 q->scanned = 1000;
129 printf("\nUhura: Captain, Starfleet Command reports a supernova\n");
130 printf(" in quadrant %d,%d. Caution is advised\n", qx, qy);
131 }
132 }
133
134 /* clear out the supernova'ed quadrant */
135 dx = q->klings;
136 dy = q->stars;
137 Now.klings -= dx;
138 if (x >= 0)
139 {
140 /* Enterprise caused supernova */
141 Game.kills += dy;
142 if (q->bases)
143 killb(qx, qy, -1);
144 Game.killk += dx;
145 }
146 else
147 if (q->bases)
148 killb(qx, qy, 0);
149 killd(qx, qy, (x >= 0));
150 q->stars = -1;
151 q->klings = 0;
152 if (Now.klings <= 0)
153 {
154 printf("Lucky devil, that supernova destroyed the last klingon\n");
155 win();
156 }
157 return;
158}