1 /* @(#)nova.c 8.1 (Berkeley) 5/31/93 */ 2 /* $NetBSD: nova.c,v 1.8 2009/05/24 21:44:56 dholland 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 #include <stdio.h> 34 #include "trek.h" 35 36 /* 37 ** CAUSE A NOVA TO OCCUR 38 ** 39 ** A nova occurs. It is the result of having a star hit with 40 ** a photon torpedo. There are several things which may happen. 41 ** The star may not be affected. It may go nova. It may turn 42 ** into a black hole. Any (yummy) it may go supernova. 43 ** 44 ** Stars that go nova cause stars which surround them to undergo 45 ** the same probabilistic process. Klingons next to them are 46 ** destroyed. And if the starship is next to it, it gets zapped. 47 ** If the zap is too much, it gets destroyed. 48 */ 49 50 void 51 nova(int x, int y) 52 { 53 int i, j; 54 int se; 55 56 if (Sect[x][y] != STAR || Quad[Ship.quadx][Ship.quady].stars < 0) 57 return; 58 if (ranf(100) < 15) { 59 printf("Spock: Star at %d,%d failed to nova.\n", x, y); 60 return; 61 } 62 if (ranf(100) < 5) { 63 snova(x, y); 64 return; 65 } 66 printf("Spock: Star at %d,%d gone nova\n", x, y); 67 68 if (ranf(4) != 0) { 69 Sect[x][y] = EMPTY; 70 } else { 71 Sect[x][y] = HOLE; 72 Quad[Ship.quadx][Ship.quady].holes += 1; 73 } 74 Quad[Ship.quadx][Ship.quady].stars -= 1; 75 Game.kills += 1; 76 for (i = x - 1; i <= x + 1; i++) { 77 if (i < 0 || i >= NSECTS) 78 continue; 79 for (j = y - 1; j <= y + 1; j++) { 80 if (j < 0 || j >= NSECTS) 81 continue; 82 se = Sect[i][j]; 83 switch (se) { 84 85 case EMPTY: 86 case HOLE: 87 break; 88 89 case KLINGON: 90 killk(i, j); 91 break; 92 93 case STAR: 94 nova(i, j); 95 break; 96 97 case INHABIT: 98 kills(i, j, -1); 99 break; 100 101 case BASE: 102 killb(i, j); 103 Game.killb += 1; 104 break; 105 106 case ENTERPRISE: 107 case QUEENE: 108 se = 2000; 109 if (Ship.shldup) { 110 if (Ship.shield >= se) { 111 Ship.shield -= se; 112 se = 0; 113 } else { 114 se -= Ship.shield; 115 Ship.shield = 0; 116 } 117 } 118 Ship.energy -= se; 119 if (Ship.energy <= 0) 120 lose(L_SUICID); 121 break; 122 123 default: 124 printf("Unknown object %c at %d,%d destroyed\n", 125 se, i, j); 126 Sect[i][j] = EMPTY; 127 break; 128 } 129 } 130 } 131 return; 132 } 133