1/* $NetBSD: nova.c,v 1.7 2009/05/24 19:18:44 dholland 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 35static char sccsid[] = "@(#)nova.c 8.1 (Berkeley) 5/31/93"; 36#else 37__RCSID("$NetBSD: nova.c,v 1.7 2009/05/24 19:18:44 dholland 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 58void 59nova(int x, int y) 60{ 61 int i, j; 62 int se; 63 64 if (Sect[x][y] != STAR || Quad[Ship.quadx][Ship.quady].stars < 0) 65 return; 66 if (ranf(100) < 15) { 67 printf("Spock: Star at %d,%d failed to nova.\n", x, y); 68 return; 69 } 70 if (ranf(100) < 5) { 71 snova(x, y); 72 return; 73 } 74 printf("Spock: Star at %d,%d gone nova\n", x, y); 75 76 if (ranf(4) != 0) { 77 Sect[x][y] = EMPTY; 78 } else { 79 Sect[x][y] = HOLE; 80 Quad[Ship.quadx][Ship.quady].holes += 1; 81 } 82 Quad[Ship.quadx][Ship.quady].stars -= 1; 83 Game.kills += 1; 84 for (i = x - 1; i <= x + 1; i++) { 85 if (i < 0 || i >= NSECTS) 86 continue; 87 for (j = y - 1; j <= y + 1; j++) { 88 if (j < 0 || j >= NSECTS) 89 continue; 90 se = Sect[i][j]; 91 switch (se) { 92 93 case EMPTY: 94 case HOLE: 95 break; 96 97 case KLINGON: 98 killk(i, j); 99 break; 100 101 case STAR: 102 nova(i, j); 103 break; 104 105 case INHABIT: 106 kills(i, j, -1); 107 break; 108 109 case BASE: 110 killb(i, j); 111 Game.killb += 1; 112 break; 113 114 case ENTERPRISE: 115 case QUEENE: 116 se = 2000; 117 if (Ship.shldup) { 118 if (Ship.shield >= se) { 119 Ship.shield -= se; 120 se = 0; 121 } else { 122 se -= Ship.shield; 123 Ship.shield = 0; 124 } 125 } 126 Ship.energy -= se; 127 if (Ship.energy <= 0) 128 lose(L_SUICID); 129 break; 130 131 default: 132 printf("Unknown object %c at %d,%d destroyed\n", 133 se, i, j); 134 Sect[i][j] = EMPTY; 135 break; 136 } 137 } 138 } 139 return; 140} 141