1 /* $OpenBSD: nova.c,v 1.7 2016/01/07 14:37:51 mestre Exp $ */ 2 /* $NetBSD: nova.c,v 1.3 1995/04/22 10:59:14 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 #include <stdio.h> 34 35 #include "trek.h" 36 37 /* 38 ** CAUSE A NOVA TO OCCUR 39 ** 40 ** A nova occurs. It is the result of having a star hit with 41 ** a photon torpedo. There are several things which may happen. 42 ** The star may not be affected. It may go nova. It may turn 43 ** into a black hole. Any (yummy) it may go supernova. 44 ** 45 ** Stars that go nova cause stars which surround them to undergo 46 ** the same probabilistic process. Klingons next to them are 47 ** destroyed. And if the starship is next to it, it gets zapped. 48 ** If the zap is too much, it gets destroyed. 49 */ 50 51 void 52 nova(int x, int y) 53 { 54 int i, j; 55 int se; 56 57 if (Sect[x][y] != STAR || Quad[Ship.quadx][Ship.quady].stars < 0) 58 return; 59 if (ranf(100) < 15) 60 { 61 printf("Spock: Star at %d,%d failed to nova.\n", x, y); 62 return; 63 } 64 if (ranf(100) < 5) 65 { 66 snova(x, y); 67 return; 68 } 69 printf("Spock: Star at %d,%d gone nova\n", x, y); 70 71 if (ranf(4) != 0) 72 Sect[x][y] = EMPTY; 73 else 74 { 75 Sect[x][y] = HOLE; 76 Quad[Ship.quadx][Ship.quady].holes += 1; 77 } 78 Quad[Ship.quadx][Ship.quady].stars -= 1; 79 Game.kills += 1; 80 for (i = x - 1; i <= x + 1; i++) 81 { 82 if (i < 0 || i >= NSECTS) 83 continue; 84 for (j = y - 1; j <= y + 1; j++) 85 { 86 if (j < 0 || j >= NSECTS) 87 continue; 88 se = Sect[i][j]; 89 switch (se) 90 { 91 92 case EMPTY: 93 case HOLE: 94 break; 95 96 case KLINGON: 97 killk(i, j); 98 break; 99 100 case STAR: 101 nova(i, j); 102 break; 103 104 case INHABIT: 105 kills(i, j, -1); 106 break; 107 108 case BASE: 109 killb(i, j); 110 Game.killb += 1; 111 break; 112 113 case ENTERPRISE: 114 case QUEENE: 115 se = 2000; 116 if (Ship.shldup) 117 { 118 if (Ship.shield >= se) 119 { 120 Ship.shield -= se; 121 se = 0; 122 } 123 else 124 { 125 se -= Ship.shield; 126 Ship.shield = 0; 127 } 128 } 129 Ship.energy -= se; 130 if (Ship.energy <= 0) 131 lose(L_SUICID); 132 break; 133 134 default: 135 printf("Unknown object %c at %d,%d destroyed\n", 136 se, i, j); 137 Sect[i][j] = EMPTY; 138 break; 139 } 140 } 141 } 142 } 143