Annotation of early-roguelike/srogue/daemon.c, Revision 1.1
1.1 ! rubenllo 1: /*
! 2: * Contains functions for dealing with things that
! 3: * happen in the future.
! 4: *
! 5: * @(#)daemon.c 9.0 (rdk) 7/17/84
! 6: *
! 7: * Super-Rogue
! 8: * Copyright (C) 1984 Robert D. Kindelberger
! 9: * All rights reserved.
! 10: *
! 11: * Based on "Rogue: Exploring the Dungeons of Doom"
! 12: * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
! 13: * All rights reserved.
! 14: *
! 15: * See the file LICENSE.TXT for full copyright and licensing information.
! 16: */
! 17:
! 18: #include "rogue.h"
! 19: #include "rogue.ext"
! 20:
! 21: #define EMPTY 0
! 22: #define DAEMON -1
! 23:
! 24: #define _X_ { 0, 0, 0, 0 }
! 25:
! 26: struct delayed_action d_list[MAXDAEMONS] = {
! 27: _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
! 28: _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
! 29: };
! 30:
! 31:
! 32: /*
! 33: * d_insert:
! 34: * Insert a function in the daemon list.
! 35: */
! 36: struct delayed_action *
! 37: d_insert(void (*func)(), int arg, int type, int time)
! 38: {
! 39: reg struct delayed_action *dev;
! 40:
! 41: if (demoncnt < MAXDAEMONS) {
! 42: dev = &d_list[demoncnt];
! 43: dev->d_type = type;
! 44: dev->d_time = time;
! 45: dev->d_func = func;
! 46: dev->d_arg = arg;
! 47: demoncnt += 1;
! 48: return dev;
! 49: }
! 50: return NULL;
! 51: }
! 52:
! 53: void
! 54: d_delete(struct delayed_action *wire)
! 55: {
! 56: reg struct delayed_action *d1, *d2;
! 57:
! 58: for (d1 = d_list; d1 < &d_list[demoncnt]; d1++) {
! 59: if (wire == d1) {
! 60: for (d2 = d1 + 1; d2 < &d_list[demoncnt]; d2++)
! 61: *d1++ = *d2;
! 62: demoncnt -= 1;
! 63: d1 = &d_list[demoncnt];
! 64: d1->d_type = EMPTY;
! 65: d1->d_func = EMPTY;
! 66: return;
! 67: }
! 68: }
! 69: }
! 70: /*
! 71: * find_slot:
! 72: * Find a particular slot in the table
! 73: */
! 74: struct delayed_action *
! 75: find_slot(void (*func)())
! 76: {
! 77: reg struct delayed_action *dev;
! 78:
! 79: for (dev = d_list; dev < &d_list[demoncnt]; dev++)
! 80: if (dev->d_type != EMPTY && func == dev->d_func)
! 81: return dev;
! 82: return NULL;
! 83: }
! 84:
! 85: /*
! 86: * start_daemon:
! 87: * Start a daemon, takes a function.
! 88: */
! 89: void
! 90: start_daemon(void (*func)(), int arg, int type)
! 91: {
! 92: d_insert(func, arg, type, DAEMON);
! 93: }
! 94:
! 95: /*
! 96: * do_daemons:
! 97: * Run all the daemons that are active with the current
! 98: * flag, passing the argument to the function.
! 99: */
! 100: void
! 101: do_daemons(int flag)
! 102: {
! 103: reg struct delayed_action *dev;
! 104:
! 105: for (dev = d_list; dev < &d_list[demoncnt]; dev++)
! 106: if (dev->d_type == flag && dev->d_time == DAEMON)
! 107: (*dev->d_func)(dev->d_arg);
! 108: }
! 109:
! 110: /*
! 111: * fuse:
! 112: * Start a fuse to go off in a certain number of turns
! 113: */
! 114: void
! 115: fuse(void (*func)(), int arg, int time)
! 116: {
! 117: d_insert(func, arg, AFTER, time);
! 118: }
! 119:
! 120: /*
! 121: * lengthen:
! 122: * Increase the time until a fuse goes off
! 123: */
! 124: void
! 125: lengthen(void (*func)(), int xtime)
! 126: {
! 127: reg struct delayed_action *wire;
! 128:
! 129: for (wire = d_list; wire < &d_list[demoncnt]; wire++)
! 130: if (wire->d_type != EMPTY && func == wire->d_func)
! 131: wire->d_time += xtime;
! 132: }
! 133:
! 134: /*
! 135: * extinguish:
! 136: * Put out a fuse. Find all such fuses and kill them.
! 137: */
! 138: void
! 139: extinguish(void (*func)())
! 140: {
! 141: reg struct delayed_action *dev;
! 142:
! 143: for (dev = d_list; dev < &d_list[demoncnt]; dev++)
! 144: if (dev->d_type != EMPTY && func == dev->d_func)
! 145: d_delete(dev);
! 146: }
! 147:
! 148: /*
! 149: * do_fuses:
! 150: * Decrement counters and start needed fuses
! 151: */
! 152: void
! 153: do_fuses(void)
! 154: {
! 155: reg struct delayed_action *dev;
! 156:
! 157: for (dev = d_list; dev < &d_list[demoncnt]; dev++) {
! 158: if (dev->d_type == AFTER && dev->d_time > DAEMON) {
! 159: if (--dev->d_time == 0) {
! 160: (*dev->d_func)(dev->d_arg);
! 161: d_delete(dev);
! 162: }
! 163: }
! 164: }
! 165: }
! 166:
! 167:
! 168: /*
! 169: * activity:
! 170: * Show wizard number of demaons and memory blocks used
! 171: */
! 172: void
! 173: activity(void)
! 174: {
! 175: msg("Daemons = %d : Memory Items = %d : Memory Used = %d",
! 176: demoncnt,total,md_memused());
! 177: }
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