1 /* $OpenBSD: snova.c,v 1.5 2003/06/03 03:01:42 millert Exp $ */ 2 /* $NetBSD: snova.c,v 1.3 1995/04/22 10:59:29 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 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)snova.c 8.1 (Berkeley) 5/31/93"; 36 #else 37 static char rcsid[] = "$OpenBSD: snova.c,v 1.5 2003/06/03 03:01:42 millert Exp $"; 38 #endif 39 #endif /* not lint */ 40 41 #include <stdio.h> 42 #include <unistd.h> 43 #include "trek.h" 44 45 /* 46 ** CAUSE SUPERNOVA TO OCCUR 47 ** 48 ** A supernova occurs. If 'ix' < 0, a random quadrant is chosen; 49 ** otherwise, the current quadrant is taken, and (ix, iy) give 50 ** the sector quadrants of the star which is blowing up. 51 ** 52 ** If the supernova turns out to be in the quadrant you are in, 53 ** you go into "emergency override mode", which tries to get you 54 ** out of the quadrant as fast as possible. However, if you 55 ** don't have enough fuel, or if you by chance run into something, 56 ** or some such thing, you blow up anyway. Oh yeh, if you are 57 ** within two sectors of the star, there is nothing that can 58 ** be done for you. 59 ** 60 ** When a star has gone supernova, the quadrant becomes uninhab- 61 ** itable for the rest of eternity, i.e., the game. If you ever 62 ** try stopping in such a quadrant, you will go into emergency 63 ** override mode. 64 */ 65 66 void 67 snova(x, y) 68 int x, y; 69 { 70 int qx, qy; 71 int ix, iy = 0; 72 int f, n; 73 int dx, dy; 74 struct quad *q; 75 76 f = 0; 77 ix = x; 78 if (ix < 0) 79 { 80 /* choose a quadrant */ 81 while (1) 82 { 83 qx = ranf(NQUADS); 84 qy = ranf(NQUADS); 85 q = &Quad[qx][qy]; 86 if (q->stars > 0) 87 break; 88 } 89 if (Ship.quadx == qx && Ship.quady == qy) 90 { 91 /* select a particular star */ 92 n = ranf(q->stars); 93 for (ix = 0; ix < NSECTS; ix++) 94 { 95 for (iy = 0; iy < NSECTS; iy++) 96 if (Sect[ix][iy] == STAR || Sect[ix][iy] == INHABIT) 97 if ((n -= 1) <= 0) 98 break; 99 if (n <= 0) 100 break; 101 } 102 f = 1; 103 } 104 } 105 else 106 { 107 /* current quadrant */ 108 iy = y; 109 qx = Ship.quadx; 110 qy = Ship.quady; 111 q = &Quad[qx][qy]; 112 f = 1; 113 } 114 if (f) 115 { 116 /* supernova is in same quadrant as Enterprise */ 117 printf("\a\nRED ALERT: supernova occuring at %d,%d\n", ix, iy); 118 dx = ix - Ship.sectx; 119 dy = iy - Ship.secty; 120 if (dx * dx + dy * dy <= 2) 121 { 122 printf("*** Emergency override attem"); 123 sleep(1); 124 printf("\n"); 125 lose(L_SNOVA); 126 } 127 q->scanned = 1000; 128 } 129 else 130 { 131 if (!damaged(SSRADIO)) 132 { 133 q->scanned = 1000; 134 printf("\nUhura: Captain, Starfleet Command reports a supernova\n"); 135 printf(" in quadrant %d,%d. Caution is advised\n", qx, qy); 136 } 137 } 138 139 /* clear out the supernova'ed quadrant */ 140 dx = q->klings; 141 dy = q->stars; 142 Now.klings -= dx; 143 if (x >= 0) 144 { 145 /* Enterprise caused supernova */ 146 Game.kills += dy; 147 if (q->bases) 148 killb(qx, qy); 149 Game.killk += dx; 150 } 151 else 152 if (q->bases) 153 killb(qx, qy); 154 killd(qx, qy, (x >= 0)); 155 q->stars = -1; 156 q->klings = 0; 157 if (Now.klings <= 0) 158 { 159 printf("Lucky devil, that supernova destroyed the last klingon\n"); 160 win(); 161 } 162 } 163