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1.1 root 1: /*
2: * Copyright (c) 1980 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms are permitted provided
6: * that: (1) source distributions retain this entire copyright notice and
7: * comment, and (2) distributions including binaries display the following
8: * acknowledgement: ``This product includes software developed by the
9: * University of California, Berkeley and its contributors'' in the
10: * documentation or other materials provided with the distribution and in
11: * all advertising materials mentioning features or use of this software.
12: * Neither the name of the University nor the names of its contributors may
13: * be used to endorse or promote products derived from this software without
14: * specific prior written permission.
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
16: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
17: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18: */
19:
20: #ifndef lint
21: static char sccsid[] = "@(#)snova.c 5.4 (Berkeley) 6/1/90";
22: #endif /* not lint */
23:
24: # include "trek.h"
25:
26: /*
27: ** CAUSE SUPERNOVA TO OCCUR
28: **
29: ** A supernova occurs. If 'ix' < 0, a random quadrant is chosen;
30: ** otherwise, the current quadrant is taken, and (ix, iy) give
31: ** the sector quadrants of the star which is blowing up.
32: **
33: ** If the supernova turns out to be in the quadrant you are in,
34: ** you go into "emergency override mode", which tries to get you
35: ** out of the quadrant as fast as possible. However, if you
36: ** don't have enough fuel, or if you by chance run into something,
37: ** or some such thing, you blow up anyway. Oh yeh, if you are
38: ** within two sectors of the star, there is nothing that can
39: ** be done for you.
40: **
41: ** When a star has gone supernova, the quadrant becomes uninhab-
42: ** itable for the rest of eternity, i.e., the game. If you ever
43: ** try stopping in such a quadrant, you will go into emergency
44: ** override mode.
45: */
46:
47: snova(x, y)
48: int x, y;
49: {
50: int qx, qy;
51: register int ix, iy;
52: int f;
53: int dx, dy;
54: int n;
55: register struct quad *q;
56:
57: f = 0;
58: ix = x;
59: if (ix < 0)
60: {
61: /* choose a quadrant */
62: while (1)
63: {
64: qx = ranf(NQUADS);
65: qy = ranf(NQUADS);
66: q = &Quad[qx][qy];
67: if (q->stars > 0)
68: break;
69: }
70: if (Ship.quadx == qx && Ship.quady == qy)
71: {
72: /* select a particular star */
73: n = ranf(q->stars);
74: for (ix = 0; ix < NSECTS; ix++)
75: {
76: for (iy = 0; iy < NSECTS; iy++)
77: if (Sect[ix][iy] == STAR || Sect[ix][iy] == INHABIT)
78: if ((n -= 1) <= 0)
79: break;
80: if (n <= 0)
81: break;
82: }
83: f = 1;
84: }
85: }
86: else
87: {
88: /* current quadrant */
89: iy = y;
90: qx = Ship.quadx;
91: qy = Ship.quady;
92: q = &Quad[qx][qy];
93: f = 1;
94: }
95: if (f)
96: {
97: /* supernova is in same quadrant as Enterprise */
98: printf("\nRED ALERT: supernova occuring at %d,%d\n", ix, iy);
99: dx = ix - Ship.sectx;
100: dy = iy - Ship.secty;
101: if (dx * dx + dy * dy <= 2)
102: {
103: printf("*** Emergency override attem");
104: sleep(1);
105: printf("\n");
106: lose(L_SNOVA);
107: }
108: q->scanned = 1000;
109: }
110: else
111: {
112: if (!damaged(SSRADIO))
113: {
114: q->scanned = 1000;
115: printf("\nUhura: Captain, Starfleet Command reports a supernova\n");
116: printf(" in quadrant %d,%d. Caution is advised\n", qx, qy);
117: }
118: }
119:
120: /* clear out the supernova'ed quadrant */
121: dx = q->klings;
122: dy = q->stars;
123: Now.klings -= dx;
124: if (x >= 0)
125: {
126: /* Enterprise caused supernova */
127: Game.kills += dy;
128: if (q->bases)
129: killb(qx, qy, -1);
130: Game.killk += dx;
131: }
132: else
133: if (q->bases)
134: killb(qx, qy, 0);
135: killd(qx, qy, (x >= 0));
136: q->stars = -1;
137: q->klings = 0;
138: if (Now.klings <= 0)
139: {
140: printf("Lucky devil, that supernova destroyed the last klingon\n");
141: win();
142: }
143: return;
144: }
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