view arogue5/daemon.c @ 104:fbc75509f4cd

Add config.h to the list of headers in the Makefiles. Some .o files need to be rebuilt if config.h changes. Adding it to the list of headers may still fail to solve the problem, because some of the Makefiles use implicit rules or do not list dependencies properly.
author John "Elwin" Edwards
date Tue, 03 Sep 2013 14:14:48 -0700
parents 0ed67132cf10
children f2951c4e28d9
line wrap: on
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/*
 * Contains functions for dealing with things that happen in the future.
 *
 * Advanced Rogue
 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
 * All rights reserved.
 *
 * Based on "Rogue: Exploring the Dungeons of Doom"
 * Copyright (C) 1980, 1981 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 EMPTY		0
#define DAEMON		-1

#define _X_ { EMPTY }

struct delayed_action d_list[MAXDAEMONS] = {
	_X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_
};
struct delayed_action f_list[MAXFUSES] = {
	_X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
	_X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_
};
int demoncnt = 0;	/* number of active daemons */
int fusecnt = 0;


/*
 * d_slot:
 *	Find an empty slot in the daemon list
 */
struct delayed_action *
d_slot()
{
	reg int i;
	reg struct delayed_action *dev;

	for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
		if (dev->d_type == EMPTY)
			return dev;
	return NULL;
}

/*
 * f_slot:
 *	Find an empty slot in the fuses list
 */
struct delayed_action *
f_slot()
{
	reg int i;
	reg struct delayed_action *dev;

	for (i = 0, dev = f_list; i < MAXFUSES; i++, dev++)
		if (dev->d_type == EMPTY)
			return dev;
	return NULL;
}



/*
 * find_slot:
 *	Find a particular slot in the table
 */
struct delayed_action *
find_slot(func)
reg int (*func)();
{
	reg int i;
	reg struct delayed_action *dev;

	for (i = 0, dev = f_list; i < MAXFUSES; i++, dev++)
		if (dev->d_type != EMPTY && func == dev->d_func)
			return dev;
	return NULL;
}


/*
 * daemon:
 *	Start a daemon, takes a function.
 */
daemon(func, arg, type)
reg int arg, type, (*func)();
{
	reg struct delayed_action *dev;

	dev = d_slot();
	if (dev != NULL) {
		dev->d_type = type;
		dev->d_func = func;
		dev->d_arg = arg;
		dev->d_time = DAEMON;
		demoncnt += 1;			/* update count */
	}
}


/*
 * kill_daemon:
 *	Remove a daemon from the list
 */
kill_daemon(func)
reg int (*func)();
{
	reg struct delayed_action *dev;
	reg int i;

	for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++) {
		if (dev->d_type != EMPTY && func == dev->d_func)
			break;
	}
	if (i >= MAXDAEMONS) return; /* if not found, forget it */
	/*
	 * Take it out of the list
	 */
	dev->d_type = EMPTY;
	dev->d_arg = 0;
	dev->d_func = NULL;
	dev->d_time = 0;
	demoncnt -= 1;			/* update count */
}


/*
 * do_daemons:
 *	Run all the daemons that are active with the current flag,
 *	passing the argument to the function.
 */
do_daemons(flag)
reg int flag;
{
	reg 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_func != NULL && 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
 */
fuse(func, arg, time, type)
reg int (*func)(), arg, time, type;
{
	reg struct delayed_action *wire;

	wire = f_slot();
	if (wire != NULL) {
		wire->d_type = type;
		wire->d_func = func;
		wire->d_arg = arg;
		wire->d_time = time;
		fusecnt += 1;			/* update count */
	}
}


/*
 * lengthen:
 *	Increase the time until a fuse goes off
 */
lengthen(func, xtime)
reg int (*func)(), xtime;
{
	reg struct delayed_action *wire;

	if ((wire = find_slot(func)) == NULL)
		return;
	wire->d_time += xtime;
}


/*
 * extinguish:
 *	Put out a fuse
 */
extinguish(func)
reg int (*func)();
{
	reg struct delayed_action *wire;

	if ((wire = find_slot(func)) == NULL)
		return;
	wire->d_type = EMPTY;
	wire->d_func = NULL;
	wire->d_arg = 0;
	wire->d_time = 0;
	fusecnt -= 1;
}


/*
 * do_fuses:
 *	Decrement counters and start needed fuses
 */
do_fuses(flag)
reg int flag;
{
	reg struct delayed_action *wire;

	/*
	 * Step though the list
	 */
	for (wire = f_list; wire <= &f_list[MAXFUSES-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;
		if (wire->d_func != NULL)
		    (*wire->d_func)(wire->d_arg);
		fusecnt -= 1;
	    }
	}
}

/*
 * activity:
 *	Show wizard number of demaons and memory blocks used
 */
activity()
{
	sprintf(outstring,"Daemons = %d : Fuses = %d : Memory Items = %d : Memory Used = %d",
	    demoncnt,fusecnt,total,md_memused());
	msg(outstring);
}