1 /*- 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)nova.c 8.1 (Berkeley) 5/31/93 30 * $FreeBSD: src/games/trek/nova.c,v 1.4 1999/11/30 03:49:52 billf Exp $ 31 * $DragonFly: src/games/trek/nova.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $ 32 */ 33 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 case EMPTY: 85 case HOLE: 86 break; 87 88 case KLINGON: 89 killk(i, j); 90 break; 91 92 case STAR: 93 nova(i, j); 94 break; 95 96 case INHABIT: 97 kills(i, j, -1); 98 break; 99 100 case BASE: 101 killb(i, j); 102 Game.killb += 1; 103 break; 104 105 case ENTERPRISE: 106 case QUEENE: 107 se = 2000; 108 if (Ship.shldup) { 109 if (Ship.shield >= se) { 110 Ship.shield -= se; 111 se = 0; 112 } else { 113 se -= Ship.shield; 114 Ship.shield = 0; 115 } 116 } 117 Ship.energy -= se; 118 if (Ship.energy <= 0) 119 lose(L_SUICID); 120 break; 121 122 default: 123 printf("Unknown object %c at %d,%d destroyed\n", 124 se, i, j); 125 Sect[i][j] = EMPTY; 126 break; 127 } 128 } 129 } 130 return; 131 } 132