1 /* 2 * Copyright (c) 1980 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)nova.c 5.4 (Berkeley) 06/01/90"; 10 #endif /* not lint */ 11 12 # include "trek.h" 13 14 /* 15 ** CAUSE A NOVA TO OCCUR 16 ** 17 ** A nova occurs. It is the result of having a star hit with 18 ** a photon torpedo. There are several things which may happen. 19 ** The star may not be affected. It may go nova. It may turn 20 ** into a black hole. Any (yummy) it may go supernova. 21 ** 22 ** Stars that go nova cause stars which surround them to undergo 23 ** the same probabilistic process. Klingons next to them are 24 ** destroyed. And if the starship is next to it, it gets zapped. 25 ** If the zap is too much, it gets destroyed. 26 */ 27 28 nova(x, y) 29 int x, y; 30 { 31 register int i, j; 32 register int se; 33 34 if (Sect[x][y] != STAR || Quad[Ship.quadx][Ship.quady].stars < 0) 35 return; 36 if (ranf(100) < 15) 37 { 38 printf("Spock: Star at %d,%d failed to nova.\n", x, y); 39 return; 40 } 41 if (ranf(100) < 5) 42 return (snova(x, y)); 43 printf("Spock: Star at %d,%d gone nova\n", x, y); 44 45 if (ranf(4) != 0) 46 Sect[x][y] = EMPTY; 47 else 48 { 49 Sect[x][y] = HOLE; 50 Quad[Ship.quadx][Ship.quady].holes += 1; 51 } 52 Quad[Ship.quadx][Ship.quady].stars -= 1; 53 Game.kills += 1; 54 for (i = x - 1; i <= x + 1; i++) 55 { 56 if (i < 0 || i >= NSECTS) 57 continue; 58 for (j = y - 1; j <= y + 1; j++) 59 { 60 if (j < 0 || j >= NSECTS) 61 continue; 62 se = Sect[i][j]; 63 switch (se) 64 { 65 66 case EMPTY: 67 case HOLE: 68 break; 69 70 case KLINGON: 71 killk(i, j); 72 break; 73 74 case STAR: 75 nova(i, j); 76 break; 77 78 case INHABIT: 79 kills(i, j, -1); 80 break; 81 82 case BASE: 83 killb(i, j); 84 Game.killb += 1; 85 break; 86 87 case ENTERPRISE: 88 case QUEENE: 89 se = 2000; 90 if (Ship.shldup) 91 if (Ship.shield >= se) 92 { 93 Ship.shield -= se; 94 se = 0; 95 } 96 else 97 { 98 se -= Ship.shield; 99 Ship.shield = 0; 100 } 101 Ship.energy -= se; 102 if (Ship.energy <= 0) 103 lose(L_SUICID); 104 break; 105 106 default: 107 printf("Unknown object %c at %d,%d destroyed\n", 108 se, i, j); 109 Sect[i][j] = EMPTY; 110 break; 111 } 112 } 113 } 114 return; 115 } 116