Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most
[dragonfly.git] / games / trek / nova.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 * @(#)nova.c 8.1 (Berkeley) 5/31/93
34 * $FreeBSD: src/games/trek/nova.c,v 1.4 1999/11/30 03:49:52 billf Exp $
35 * $DragonFly: src/games/trek/nova.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 A NOVA TO OCCUR
42**
43** A nova occurs. It is the result of having a star hit with
44** a photon torpedo. There are several things which may happen.
45** The star may not be affected. It may go nova. It may turn
46** into a black hole. Any (yummy) it may go supernova.
47**
48** Stars that go nova cause stars which surround them to undergo
49** the same probabilistic process. Klingons next to them are
50** destroyed. And if the starship is next to it, it gets zapped.
51** If the zap is too much, it gets destroyed.
52*/
53
54nova(x, y)
55int x, y;
56{
57 int i, j;
58 int se;
59
60 if (Sect[x][y] != STAR || Quad[Ship.quadx][Ship.quady].stars < 0)
61 return;
62 if (ranf(100) < 15)
63 {
64 printf("Spock: Star at %d,%d failed to nova.\n", x, y);
65 return;
66 }
67 if (ranf(100) < 5)
68 return (snova(x, y));
69 printf("Spock: Star at %d,%d gone nova\n", x, y);
70
71 if (ranf(4) != 0)
72 Sect[x][y] = EMPTY;
73 else
74 {
75 Sect[x][y] = HOLE;
76 Quad[Ship.quadx][Ship.quady].holes += 1;
77 }
78 Quad[Ship.quadx][Ship.quady].stars -= 1;
79 Game.kills += 1;
80 for (i = x - 1; i <= x + 1; i++)
81 {
82 if (i < 0 || i >= NSECTS)
83 continue;
84 for (j = y - 1; j <= y + 1; j++)
85 {
86 if (j < 0 || j >= NSECTS)
87 continue;
88 se = Sect[i][j];
89 switch (se)
90 {
91
92 case EMPTY:
93 case HOLE:
94 break;
95
96 case KLINGON:
97 killk(i, j);
98 break;
99
100 case STAR:
101 nova(i, j);
102 break;
103
104 case INHABIT:
105 kills(i, j, -1);
106 break;
107
108 case BASE:
109 killb(i, j);
110 Game.killb += 1;
111 break;
112
113 case ENTERPRISE:
114 case QUEENE:
115 se = 2000;
116 if (Ship.shldup)
117 if (Ship.shield >= se)
118 {
119 Ship.shield -= se;
120 se = 0;
121 }
122 else
123 {
124 se -= Ship.shield;
125 Ship.shield = 0;
126 }
127 Ship.energy -= se;
128 if (Ship.energy <= 0)
129 lose(L_SUICID);
130 break;
131
132 default:
133 printf("Unknown object %c at %d,%d destroyed\n",
134 se, i, j);
135 Sect[i][j] = EMPTY;
136 break;
137 }
138 }
139 }
140 return;
141}