1 /* $NetBSD: nova.c,v 1.6 2003/08/07 09:37:53 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)nova.c 8.1 (Berkeley) 5/31/93"; 36 #else 37 __RCSID("$NetBSD: nova.c,v 1.6 2003/08/07 09:37:53 agc Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <stdio.h> 42 #include "trek.h" 43 44 /* 45 ** CAUSE A NOVA TO OCCUR 46 ** 47 ** A nova occurs. It is the result of having a star hit with 48 ** a photon torpedo. There are several things which may happen. 49 ** The star may not be affected. It may go nova. It may turn 50 ** into a black hole. Any (yummy) it may go supernova. 51 ** 52 ** Stars that go nova cause stars which surround them to undergo 53 ** the same probabilistic process. Klingons next to them are 54 ** destroyed. And if the starship is next to it, it gets zapped. 55 ** If the zap is too much, it gets destroyed. 56 */ 57 58 void 59 nova(x, y) 60 int x, y; 61 { 62 int i, j; 63 int se; 64 65 if (Sect[x][y] != STAR || Quad[Ship.quadx][Ship.quady].stars < 0) 66 return; 67 if (ranf(100) < 15) 68 { 69 printf("Spock: Star at %d,%d failed to nova.\n", x, y); 70 return; 71 } 72 if (ranf(100) < 5) { 73 snova(x, y); 74 return; 75 } 76 printf("Spock: Star at %d,%d gone nova\n", x, y); 77 78 if (ranf(4) != 0) 79 Sect[x][y] = EMPTY; 80 else 81 { 82 Sect[x][y] = HOLE; 83 Quad[Ship.quadx][Ship.quady].holes += 1; 84 } 85 Quad[Ship.quadx][Ship.quady].stars -= 1; 86 Game.kills += 1; 87 for (i = x - 1; i <= x + 1; i++) 88 { 89 if (i < 0 || i >= NSECTS) 90 continue; 91 for (j = y - 1; j <= y + 1; j++) 92 { 93 if (j < 0 || j >= NSECTS) 94 continue; 95 se = Sect[i][j]; 96 switch (se) 97 { 98 99 case EMPTY: 100 case HOLE: 101 break; 102 103 case KLINGON: 104 killk(i, j); 105 break; 106 107 case STAR: 108 nova(i, j); 109 break; 110 111 case INHABIT: 112 kills(i, j, -1); 113 break; 114 115 case BASE: 116 killb(i, j); 117 Game.killb += 1; 118 break; 119 120 case ENTERPRISE: 121 case QUEENE: 122 se = 2000; 123 if (Ship.shldup) { 124 if (Ship.shield >= se) { 125 Ship.shield -= se; 126 se = 0; 127 } else { 128 se -= Ship.shield; 129 Ship.shield = 0; 130 } 131 } 132 Ship.energy -= se; 133 if (Ship.energy <= 0) 134 lose(L_SUICID); 135 break; 136 137 default: 138 printf("Unknown object %c at %d,%d destroyed\n", 139 se, i, j); 140 Sect[i][j] = EMPTY; 141 break; 142 } 143 } 144 } 145 return; 146 } 147