view srogue/daemons.c @ 227:696277507a2e

Rogue V4, V5: disable a cheat granting permanent monster detection. In these two games, a potion of monster detection turns on the player's SEEMONST flag. A fuse is set to call turn_see() to turn the flag back off. But the save and restore functions do not recognize turn_see() and fail to set the fuse up again. When restoring, Rogue V4 merely sets the fuse's function to NULL and leaves it burning. When it goes off, a segfault results. Rogue V5 clears all the fuse's fields, and the player retains the ability to see all monsters on the level. The save and restore code can now handle the fuse. The function used is a new wrapper, turn_see_off(), which should lead to less problems with daemons being multiple incompatible types. Also, Rogue V4 and Super-Rogue now properly clear unrecognized daemon and fuse slots when restoring a saved game.
author John "Elwin" Edwards
date Sat, 05 Mar 2016 12:10:20 -0500
parents 94a0d9dd5ce1
children
line wrap: on
line source

/*
 * All the daemon and fuse functions are in here
 *
 * @(#)daemons.c	9.0	(rdk)	 7/17/84
 *
 * Super-Rogue
 * Copyright (C) 1984 Robert D. Kindelberger
 * 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 "rogue.h"
#include "rogue.ext"

int between = 0;

/*
 * doctor:
 *	A healing daemon that restores hit points after rest
 */
void
doctor(int fromfuse)
{
	reg int *thp, lv, ohp, ccon;

	lv = him->s_lvl;
	thp = &him->s_hpt;
	ohp = *thp;
	quiet += 1;

	ccon = him->s_ef.a_con;
	if (ccon > 16 && !isfight)
		*thp += rnd(ccon - 15);
	if (lv < 8) {
		if (quiet > 20 - lv * 2)
			*thp += 1;
	}
	else {
		if (quiet >= 3)
			*thp += rnd(lv - 7) + 1;
	}
	if (isring(LEFT, R_REGEN))
		*thp += 1;
	if (isring(RIGHT, R_REGEN))
		*thp += 1;
	if (pl_on(ISREGEN))
		*thp += 1;
	if (ohp != *thp) {
		nochange = FALSE;
		if (*thp > him->s_maxhp)
			*thp = him->s_maxhp;
		quiet = 0;
	}
}


/*
 * Swander:
 *	Called when it is time to start rolling for wandering monsters
 */
void
swander(int fromfuse)
{
	start_daemon(rollwand, TRUE, AFTER);
}


/*
 * rollwand:
 *	Called to roll to see if a wandering monster starts up
 */
void
rollwand(int fromfuse)
{

	if (++between >= 4) {
		if (roll(1, 6) == 4) {
			if (levtype != POSTLEV)		/* no monsters for posts */
				wanderer();
			extinguish(rollwand);
			fuse(swander, TRUE, WANDERTIME);
		}
		between = 0;
	}
}


/*
 * unconfuse:
 *	Release the poor player from his confusion
 */
void
unconfuse(int fromfuse)
{
	if (pl_on(ISHUH))
		msg("You feel less confused now.");
	player.t_flags &= ~ISHUH;
}

/*
 * unsee:
 *	He lost his see invisible power
 */
void
unsee(int fromfuse)
{
	player.t_flags &= ~CANSEE;
}

/*
 * sight:
 *	He gets his sight back
 */
void
sight(int fromfuse)
{
	if (pl_on(ISBLIND))
		msg("The veil of darkness lifts.");
	player.t_flags &= ~ISBLIND;
	light(&hero);
}

/*
 * nohaste:
 *	End the hasting
 */
void
nohaste(int fromfuse)
{
	if (pl_on(ISHASTE))
		msg("You feel yourself slowing down.");
	player.t_flags &= ~ISHASTE;
}


/*
 * stomach:
 *	Digest the hero's food
 */
void
stomach(int fromfuse)
{
	reg int oldfood, old_hunger;

	old_hunger = hungry_state;
	if (food_left <= 0) {		 /* the hero is fainting */
		if (--food_left == -150) {
			msg("Your stomach writhes with hunger pains.");
		}
		else if (food_left < -350) {
			msg("You starve to death !!");
			msg(" ");
			death(K_STARVE);
		}
		if (player.t_nocmd > 0 || rnd(100) > 20)
			return;
		player.t_nocmd = rnd(8)+4;
		msg("You faint.");
		running = FALSE;
		count = 0;
		hungry_state = F_FAINT;
	}
	else {
		oldfood = food_left;
		food_left -= ringfood + foodlev - amulet;
		if (player.t_nocmd > 0)		/* wait till he can move */
			return;
		if (food_left < WEAKTIME && oldfood >= WEAKTIME) {
			msg("You are starting to feel weak.");
			hungry_state = F_WEAK;
		}
		else if(food_left < HUNGTIME && oldfood >= HUNGTIME) {
			msg("Getting hungry.");
			hungry_state = F_HUNGRY;
		}
	}
	if (old_hunger != hungry_state)
	    updpack();				/* new pack weight */
	wghtchk(FALSE);
}

/*
 * noteth:
 *	Hero is no longer etherereal
 */
void
noteth(int fromfuse)
{
	int ch;

	if (pl_on(ISETHER)) {
		msg("You begin to feel more corporeal.");
		ch = player.t_oldch;
		if (dead_end(ch)) {
			msg("You materialize in %s.",identify(ch));
			msg(" ");
			death(K_STONE);	/* can't materialize in walls */
		}
	}
	player.t_flags &= ~ISETHER;
}

/*
 * sapem:
 *	Sap the hero's life away
 */
void
sapem(int fromfuse)
{
	chg_abil(rnd(4) + 1, -1, TRUE);
	fuse(sapem, TRUE, 150);
	nochange = FALSE;
}

/*
 * notslow:
 *	Restore the hero's normal speed
 */
void
notslow(int fromfuse)
{
	if (pl_on(ISSLOW))
		msg("You no longer feel hindered.");
	player.t_flags &= ~ISSLOW;
}

/*
 * notregen:
 *	Hero is no longer regenerative
 */
void
notregen(int fromfuse)
{
	if (pl_on(ISREGEN))
		msg("You no longer feel bolstered.");
	player.t_flags &= ~ISREGEN;
}

/*
 * notinvinc:
 *	Hero not invincible any more
 */
void
notinvinc(int fromfuse)
{
	if (pl_on(ISINVINC))
		msg("You no longer feel invincible.");
	player.t_flags &= ~ISINVINC;
}