Mercurial > hg > early-roguelike
view rogue5/daemon.c @ 229:50b89f165a34
Use uniform return types for functions related to options.
Functions for printing options now return void. Functions for setting
options now return int. Argument types still vary, though converting
all the option pointers to void* would be possible.
author | John "Elwin" Edwards |
---|---|
date | Sun, 06 Mar 2016 14:45:18 -0500 |
parents | f502bf60e6e4 |
children |
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/* * Contains functions for dealing with things that happen in the * future. * * @(#)daemon.c 4.7 (Berkeley) 02/05/99 * * Rogue: Exploring the Dungeons of Doom * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman * All rights reserved. * * See the file LICENSE.TXT for full copyright and licensing information. */ #include <curses.h> #include "rogue.h" #define DAEMON -1 /* * d_slot: * Find an empty slot in the daemon/fuse list */ struct delayed_action * d_slot(void) { struct delayed_action *dev; for (dev = d_list; dev <= &d_list[MAXDAEMONS-1]; dev++) if (dev->d_type == EMPTY) return dev; #ifdef MASTER debug("Ran out of fuse slots"); #endif return NULL; } /* * find_slot: * Find a particular slot in the table */ struct delayed_action * find_slot(void (*func)()) { struct delayed_action *dev; for (dev = d_list; dev <= &d_list[MAXDAEMONS-1]; dev++) if (dev->d_type != EMPTY && func == dev->d_func) return dev; return NULL; } /* * start_daemon: * Start a daemon, takes a function. */ void start_daemon(void (*func)(), int arg, int type) { struct delayed_action *dev; dev = d_slot(); dev->d_type = type; dev->d_func = func; dev->d_arg = arg; dev->d_time = DAEMON; } /* * kill_daemon: * Remove a daemon from the list */ void kill_daemon(void (*func)()) { struct delayed_action *dev; if ((dev = find_slot(func)) == NULL) return; /* * Take it out of the list */ dev->d_type = EMPTY; } /* * do_daemons: * Run all the daemons that are active with the current flag, * passing the argument to the function. */ void do_daemons(int flag) { struct delayed_action *dev; /* * Loop through the devil list */ for (dev = d_list; dev <= &d_list[MAXDAEMONS-1]; dev++) /* * Executing each one, giving it the proper arguments */ if (dev->d_type == flag && dev->d_time == DAEMON) (*dev->d_func)(dev->d_arg); } /* * fuse: * Start a fuse to go off in a certain number of turns */ void fuse(void (*func)(), int arg, int time, int type) { struct delayed_action *wire; wire = d_slot(); wire->d_type = type; wire->d_func = func; wire->d_arg = arg; wire->d_time = time; } /* * lengthen: * Increase the time until a fuse goes off */ void lengthen(void (*func)(), int xtime) { struct delayed_action *wire; if ((wire = find_slot(func)) == NULL) return; wire->d_time += xtime; } /* * extinguish: * Put out a fuse */ void extinguish(void (*func)()) { struct delayed_action *wire; if ((wire = find_slot(func)) == NULL) return; wire->d_type = EMPTY; } /* * do_fuses: * Decrement counters and start needed fuses */ void do_fuses(int flag) { struct delayed_action *wire; /* * Step though the list */ for (wire = d_list; wire <= &d_list[MAXDAEMONS-1]; wire++) /* * Decrementing counters and starting things we want. We also need * to remove the fuse from the list once it has gone off. */ if (flag == wire->d_type && wire->d_time > 0 && --wire->d_time == 0) { wire->d_type = EMPTY; (*wire->d_func)(wire->d_arg); } }