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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)nova.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/trek/nova.c,v 1.4 1999/11/30 03:49:52 billf Exp $ 35 * $DragonFly: src/games/trek/nova.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $ 36 */ 37 38 # include "trek.h" 39 40 /* 41 ** CAUSE A NOVA TO OCCUR 42 ** 43 ** A nova occurs. It is the result of having a star hit with 44 ** a photon torpedo. There are several things which may happen. 45 ** The star may not be affected. It may go nova. It may turn 46 ** into a black hole. Any (yummy) it may go supernova. 47 ** 48 ** Stars that go nova cause stars which surround them to undergo 49 ** the same probabilistic process. Klingons next to them are 50 ** destroyed. And if the starship is next to it, it gets zapped. 51 ** If the zap is too much, it gets destroyed. 52 */ 53 54 void 55 nova(int x, int y) 56 { 57 int i, j; 58 int se; 59 60 if (Sect[x][y] != STAR || Quad[Ship.quadx][Ship.quady].stars < 0) 61 return; 62 if (ranf(100) < 15) 63 { 64 printf("Spock: Star at %d,%d failed to nova.\n", x, y); 65 return; 66 } 67 if (ranf(100) < 5) 68 return (snova(x, y)); 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 return; 143 } 144