/**
 * Do damage as the result of an experience draining melee attack.
 *
 * \param context is the information for the current attack.
 * \param chance is the player's chance of resisting drain if they have
 * OF_HOLD_LIFE.
 * \param drain_amount is the base amount of experience to drain.
 */
static void melee_effect_experience(melee_effect_handler_context_t *context,
									int chance, int drain_amount)
{
	/* Obvious */
	context->obvious = TRUE;

	/* Take damage */
	take_hit(context->p, context->damage, context->ddesc);
	update_smart_learn(context->mon, context->p, OF_HOLD_LIFE, 0, -1);

	/* Player is dead */
	if (context->p->is_dead)
		return;

	if (player_of_has(context->p, OF_HOLD_LIFE) && (randint0(100) < chance)) {
		msg("You keep hold of your life force!");
	} else {
		s32b d = drain_amount +
			(context->p->exp/100) * z_info->life_drain_percent;
		if (player_of_has(context->p, OF_HOLD_LIFE)) {
			msg("You feel your life slipping away!");
			player_exp_lose(context->p, d / 10, FALSE);
		} else {
			msg("You feel your life draining away!");
			player_exp_lose(context->p, d, FALSE);
		}
	}
}
static void project_player_handler_NETHER(project_player_handler_context_t *context)
{
    if (player_resists(player, ELEM_NETHER) ||
            player_of_has(player, OF_HOLD_LIFE)) {
        msg("You resist the effect!");
        return;
    }

    /* Life draining */
    msg("You feel your life force draining away!");
    player_exp_lose(player, 200 + (player->exp / 100) * z_info->life_drain_percent, FALSE);
}
Esempio n. 3
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static void project_player_handler_TIME(project_player_handler_context_t *context)
{
	if (one_in_(2)) {
		/* Life draining */
		int drain = 100 + (player->exp / 100) * z_info->life_drain_percent;
		msg("You feel your life force draining away!");
		player_exp_lose(player, drain, false);
	} else if (!one_in_(5)) {
		/* Drain some stats */
		project_player_drain_stats(2);
	} else {
		/* Drain all stats */
		int i;
		msg("You're not as powerful as you used to be...");

		for (i = 0; i < STAT_MAX; i++)
			player_stat_dec(player, i, false);
	}
}
static void project_player_handler_CHAOS(project_player_handler_context_t *context)
{
    if (player_resists(player, ELEM_CHAOS)) {
        msg("You resist the effect!");
        return;
    }

    /* Hallucination */
    (void)player_inc_timed(player, TMD_IMAGE, randint1(10), TRUE, FALSE);

    /* Confusion */
    (void)player_inc_timed(player, TMD_CONFUSED, 10 + randint0(20), TRUE, TRUE);

    /* Life draining */
    if (player_of_has(player, OF_HOLD_LIFE)) {
        msg("You feel your life force draining away!");
        player_exp_lose(player, 5000 + (player->exp / 100) * z_info->life_drain_percent, FALSE);
    }
}
Esempio n. 5
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/*
 * Do an effect, given an object.
 * Boost is the extent to which skill surpasses difficulty, used as % boost. It
 * ranges from 0 to 138.
 */
bool effect_do(effect_type effect, bool *ident, bool aware, int dir, int beam,
	int boost)
{
	int py = p_ptr->py;
	int px = p_ptr->px;
	int dam, chance, dur;

	if (effect < 1 || effect > EF_MAX)
	{
		msg("Bad effect passed to do_effect().  Please report this bug.");
		return FALSE;
	}

	switch (effect)
	{
		case EF_POISON:
		{
			inc_timed(TMD_POISONED, damroll(2, 7) + 10, TRUE, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_BLIND:
		{
			inc_timed(TMD_BLIND, damroll(4, 25) + 75, TRUE, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_SCARE:
		{
			inc_timed(TMD_AFRAID, randint0(10) + 10, TRUE, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_CONFUSE:
		{
			inc_timed(TMD_CONFUSED, damroll(4, 5) + 10, TRUE, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_HALLUC:
		{
			inc_timed(TMD_IMAGE, randint0(250) + 250, TRUE, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_PARALYZE:
		{
			inc_timed(TMD_PARALYZED, randint0(5) + 5, TRUE, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_SLOW:
		{
			if (inc_timed(TMD_SLOW, randint1(25) + 15, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_CURE_POISON:
		{
			if (clear_timed(TMD_POISONED, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_BLINDNESS:
		{
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_PARANOIA:
		{
			if (clear_timed(TMD_AFRAID, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_CONFUSION:
		{
			if (clear_timed(TMD_CONFUSED, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_MIND:
		{
			if (clear_timed(TMD_CONFUSED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_AFRAID, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_IMAGE, TRUE)) *ident = TRUE;
			if (!of_has(p_ptr->state.flags, OF_RES_CONFU) &&
				inc_timed(TMD_OPP_CONF, damroll(4, 10), TRUE, TRUE))
			    	*ident = TRUE;
			return TRUE;
		}

		case EF_CURE_BODY:
		{
			if (clear_timed(TMD_STUN, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_POISONED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			return TRUE;
		}


		case EF_CURE_LIGHT:
		{
			if (hp_player(20)) *ident = TRUE;
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			if (dec_timed(TMD_CUT, 20, TRUE)) *ident = TRUE;
			if (dec_timed(TMD_CONFUSED, 20, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_SERIOUS:
		{
			if (hp_player(40)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CONFUSED, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_CRITICAL:
		{
			if (hp_player(60)) *ident = TRUE;
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CONFUSED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_POISONED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_STUN, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_AMNESIA, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_FULL:
		{
			int amt = (p_ptr->mhp * 35) / 100;
			if (amt < 300) amt = 300;

			if (hp_player(amt)) *ident = TRUE;
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CONFUSED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_POISONED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_STUN, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_AMNESIA, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_FULL2:
		{
			if (hp_player(1200)) *ident = TRUE;
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CONFUSED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_POISONED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_STUN, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_AMNESIA, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_TEMP:
		{
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_POISONED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CONFUSED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_STUN, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_HEAL1:
		{
			if (hp_player(500)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_HEAL2:
		{
			if (hp_player(1000)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_HEAL3:
		{
			if (hp_player(500)) *ident = TRUE;
			if (clear_timed(TMD_STUN, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_GAIN_EXP:
		{
			if (p_ptr->exp < PY_MAX_EXP)
			{
				msg("You feel more experienced.");
				player_exp_gain(p_ptr, 100000L);
				*ident = TRUE;
			}
			return TRUE;
		}

		case EF_LOSE_EXP:
		{
			if (!check_state(OF_HOLD_LIFE, p_ptr->state.flags) && (p_ptr->exp > 0))
			{
				msg("You feel your memories fade.");
				player_exp_lose(p_ptr, p_ptr->exp / 4, FALSE);
				*ident = TRUE;
			}
			*ident = TRUE;
			wieldeds_notice_flag(OF_HOLD_LIFE);
			return TRUE;
		}

		case EF_RESTORE_EXP:
		{
			if (restore_level()) *ident = TRUE;
			return TRUE;
		}

		case EF_RESTORE_MANA:
		{
			if (p_ptr->csp < p_ptr->msp)
			{
				p_ptr->csp = p_ptr->msp;
				p_ptr->csp_frac = 0;
				msg("Your feel your head clear.");
				p_ptr->redraw |= (PR_MANA);
				*ident = TRUE;
			}
			return TRUE;
		}

		case EF_GAIN_STR:
		case EF_GAIN_INT:
		case EF_GAIN_WIS:
		case EF_GAIN_DEX:
		case EF_GAIN_CON:
		case EF_GAIN_CHR:
		{
			int stat = effect - EF_GAIN_STR;
			if (do_inc_stat(stat)) *ident = TRUE;
			return TRUE;
		}

		case EF_GAIN_ALL:
		{
			if (do_inc_stat(A_STR)) *ident = TRUE;
			if (do_inc_stat(A_INT)) *ident = TRUE;
			if (do_inc_stat(A_WIS)) *ident = TRUE;
			if (do_inc_stat(A_DEX)) *ident = TRUE;
			if (do_inc_stat(A_CON)) *ident = TRUE;
			if (do_inc_stat(A_CHR)) *ident = TRUE;
			return TRUE;
		}

		case EF_BRAWN:
		{
			/* Pick a random stat to decrease other than strength */
			int stat = randint0(A_MAX-1) + 1;

			if (do_dec_stat(stat, TRUE))
			{
				do_inc_stat(A_STR);
				*ident = TRUE;
			}

			return TRUE;
		}

		case EF_INTELLECT:
		{
			/* Pick a random stat to decrease other than intelligence */
			int stat = randint0(A_MAX-1);
			if (stat >= A_INT) stat++;

			if (do_dec_stat(stat, TRUE))
			{
				do_inc_stat(A_INT);
				*ident = TRUE;
			}

			return TRUE;
		}

		case EF_CONTEMPLATION:
		{
			/* Pick a random stat to decrease other than wisdom */
			int stat = randint0(A_MAX-1);
			if (stat >= A_WIS) stat++;

			if (do_dec_stat(stat, TRUE))
			{
				do_inc_stat(A_WIS);
				*ident = TRUE;
			}

			return TRUE;
		}

		case EF_TOUGHNESS:
		{
			/* Pick a random stat to decrease other than constitution */
			int stat = randint0(A_MAX-1);
			if (stat >= A_CON) stat++;

			if (do_dec_stat(stat, TRUE))
			{
				do_inc_stat(A_CON);
				*ident = TRUE;
			}

			return TRUE;
		}

		case EF_NIMBLENESS:
		{
			/* Pick a random stat to decrease other than dexterity */
			int stat = randint0(A_MAX-1);
			if (stat >= A_DEX) stat++;

			if (do_dec_stat(stat, TRUE))
			{
				do_inc_stat(A_DEX);
				*ident = TRUE;
			}

			return TRUE;
		}

		case EF_PLEASING:
		{
			/* Pick a random stat to decrease other than charisma */
			int stat = randint0(A_MAX-1);

			if (do_dec_stat(stat, TRUE))
			{
				do_inc_stat(A_CHR);
				*ident = TRUE;
			}

			return TRUE;
		}

		case EF_LOSE_STR:
		case EF_LOSE_INT:
		case EF_LOSE_WIS:
		case EF_LOSE_DEX:
		case EF_LOSE_CON:
		case EF_LOSE_CHR:
		{
			int stat = effect - EF_LOSE_STR;

			take_hit(damroll(5, 5), "stat drain");
			(void)do_dec_stat(stat, FALSE);
			*ident = TRUE;

			return TRUE;
		}

		case EF_LOSE_CON2:
		{
			take_hit(damroll(10, 10), "poisonous food");
			(void)do_dec_stat(A_CON, FALSE);
			*ident = TRUE;

			return TRUE;
		}

		case EF_RESTORE_STR:
		case EF_RESTORE_INT:
		case EF_RESTORE_WIS:
		case EF_RESTORE_DEX:
		case EF_RESTORE_CON:
		case EF_RESTORE_CHR:
		{
			int stat = effect - EF_RESTORE_STR;
			if (do_res_stat(stat)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURE_NONORLYBIG:
		{
			msg("You feel life flow through your body!");
			restore_level();
			(void)clear_timed(TMD_POISONED, TRUE);
			(void)clear_timed(TMD_BLIND, TRUE);
			(void)clear_timed(TMD_CONFUSED, TRUE);
			(void)clear_timed(TMD_IMAGE, TRUE);
			(void)clear_timed(TMD_STUN, TRUE);
			(void)clear_timed(TMD_CUT, TRUE);
			(void)clear_timed(TMD_AMNESIA, TRUE);

			if (do_res_stat(A_STR)) *ident = TRUE;
			if (do_res_stat(A_INT)) *ident = TRUE;
			if (do_res_stat(A_WIS)) *ident = TRUE;
			if (do_res_stat(A_DEX)) *ident = TRUE;
			if (do_res_stat(A_CON)) *ident = TRUE;
			if (do_res_stat(A_CHR)) *ident = TRUE;

			/* Recalculate max. hitpoints */
			update_stuff();

			hp_player(5000);

			*ident = TRUE;
			return TRUE;
		}

		case EF_RESTORE_ALL:
		{
			/* Life, above, also gives these effects */
			if (do_res_stat(A_STR)) *ident = TRUE;
			if (do_res_stat(A_INT)) *ident = TRUE;
			if (do_res_stat(A_WIS)) *ident = TRUE;
			if (do_res_stat(A_DEX)) *ident = TRUE;
			if (do_res_stat(A_CON)) *ident = TRUE;
			if (do_res_stat(A_CHR)) *ident = TRUE;
			return TRUE;
		}

		case EF_RESTORE_ST_LEV:
		{
			if (restore_level()) *ident = TRUE;
			if (do_res_stat(A_STR)) *ident = TRUE;
			if (do_res_stat(A_INT)) *ident = TRUE;
			if (do_res_stat(A_WIS)) *ident = TRUE;
			if (do_res_stat(A_DEX)) *ident = TRUE;
			if (do_res_stat(A_CON)) *ident = TRUE;
			if (do_res_stat(A_CHR)) *ident = TRUE;
			return TRUE;
		}

		case EF_TMD_INFRA:
		{
			if (inc_timed(TMD_SINFRA, 100 + damroll(4, 25), TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_TMD_SINVIS:
		{
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			if (inc_timed(TMD_SINVIS, 12 + damroll(2, 6), TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_TMD_ESP:
		{
			if (clear_timed(TMD_BLIND, TRUE)) *ident = TRUE;
			if (inc_timed(TMD_TELEPATHY, 12 + damroll(6, 6), TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}


		case EF_ENLIGHTENMENT:
		{
			msg("An image of your surroundings forms in your mind...");
			wiz_light();
			*ident = TRUE;
			return TRUE;
		}


		case EF_ENLIGHTENMENT2:
		{
			msg("You begin to feel more enlightened...");
			message_flush();
			wiz_light();
			(void)do_inc_stat(A_INT);
			(void)do_inc_stat(A_WIS);
			(void)detect_traps(TRUE);
			(void)detect_doorstairs(TRUE);
			(void)detect_treasure(TRUE);
			identify_pack();
			*ident = TRUE;
			return TRUE;
		}

		case EF_HERO:
		{
			dur = randint1(25) + 25;
			if (hp_player(10)) *ident = TRUE;
			if (clear_timed(TMD_AFRAID, TRUE)) *ident = TRUE;
			if (inc_timed(TMD_BOLD, dur, TRUE, TRUE)) *ident = TRUE;
			if (inc_timed(TMD_HERO, dur, TRUE, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_SHERO:
		{
			dur = randint1(25) + 25;
			if (hp_player(30)) *ident = TRUE;
			if (clear_timed(TMD_AFRAID, TRUE)) *ident = TRUE;
			if (inc_timed(TMD_BOLD, dur, TRUE, TRUE)) *ident = TRUE;
			if (inc_timed(TMD_SHERO, dur, TRUE, TRUE)) *ident = TRUE;
			return TRUE;
		}


		case EF_RESIST_ACID:
		{
			if (inc_timed(TMD_OPP_ACID, randint1(10) + 10, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_RESIST_ELEC:
		{
			if (inc_timed(TMD_OPP_ELEC, randint1(10) + 10, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_RESIST_FIRE:
		{
			if (inc_timed(TMD_OPP_FIRE, randint1(10) + 10, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_RESIST_COLD:
		{
			if (inc_timed(TMD_OPP_COLD, randint1(10) + 10, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_RESIST_POIS:
		{
			if (inc_timed(TMD_OPP_POIS, randint1(10) + 10, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_RESIST_ALL:
		{
			if (inc_timed(TMD_OPP_ACID, randint1(20) + 20, TRUE, TRUE))
				*ident = TRUE;
			if (inc_timed(TMD_OPP_ELEC, randint1(20) + 20, TRUE, TRUE))
				*ident = TRUE;
			if (inc_timed(TMD_OPP_FIRE, randint1(20) + 20, TRUE, TRUE))
				*ident = TRUE;
			if (inc_timed(TMD_OPP_COLD, randint1(20) + 20, TRUE, TRUE))
				*ident = TRUE;
			if (inc_timed(TMD_OPP_POIS, randint1(20) + 20, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_DETECT_TREASURE:
		{
			if (detect_treasure(aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_DETECT_TRAP:
		{
			if (detect_traps(aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_DETECT_DOORSTAIR:
		{
			if (detect_doorstairs(aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_DETECT_INVIS:
		{
			if (detect_monsters_invis(aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_DETECT_EVIL:
		{
			if (detect_monsters_evil(aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_DETECT_ALL:
		{
			if (detect_all(aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_ENCHANT_TOHIT:
		{
			*ident = TRUE;
			return enchant_spell(1, 0, 0);
		}

		case EF_ENCHANT_TODAM:
		{
			*ident = TRUE;
			return enchant_spell(0, 1, 0);
		}

		case EF_ENCHANT_WEAPON:
		{
			*ident = TRUE;
			return enchant_spell(randint1(3), randint1(3), 0);
		}

		case EF_ENCHANT_ARMOR:
		{
			*ident = TRUE;
			return enchant_spell(0, 0, 1);
		}

		case EF_ENCHANT_ARMOR2:
		{
			*ident = TRUE;
			return enchant_spell(0, 0, randint1(3) + 2);
		}

		case EF_RESTORE_ITEM:
		{
			*ident = TRUE;
			return restore_item();
		}

		case EF_IDENTIFY:
		{
			*ident = TRUE;
			if (!ident_spell()) return FALSE;
			return TRUE;
		}

		case EF_REMOVE_CURSE:
		{
			if (remove_curse())
			{
				if (!p_ptr->timed[TMD_BLIND])
					msg("The air around your body glows blue for a moment...");
				else
					msg("You feel as if someone is watching over you.");

				*ident = TRUE;
			}
			return TRUE;
		}

		case EF_REMOVE_CURSE2:
		{
			remove_all_curse();
			*ident = TRUE;
			return TRUE;
		}

		case EF_LIGHT:
		{
			if (light_area(damroll(2, 8), 2)) *ident = TRUE;
			return TRUE;
		}

		case EF_SUMMON_MON:
		{
			int i;
			sound(MSG_SUM_MONSTER);

			for (i = 0; i < randint1(3); i++)
			{
				if (summon_specific(py, px, p_ptr->depth, 0, 1))
					*ident = TRUE;
			}
			return TRUE;
		}

		case EF_SUMMON_UNDEAD:
		{
			int i;
			sound(MSG_SUM_UNDEAD);

			for (i = 0; i < randint1(3); i++)
			{
				if (summon_specific(py, px, p_ptr->depth,
					S_UNDEAD, 1))
					*ident = TRUE;
			}
			return TRUE;
		}

		case EF_TELE_PHASE:
		{
			teleport_player(10);
			*ident = TRUE;
			return TRUE;
		}

		case EF_TELE_LONG:
		{
			teleport_player(100);
			*ident = TRUE;
			return TRUE;
		}

		case EF_TELE_LEVEL:
		{
			(void)teleport_player_level();
			*ident = TRUE;
			return TRUE;
		}

		case EF_CONFUSING:
		{
			if (p_ptr->confusing == 0)
			{
				msg("Your hands begin to glow.");
				p_ptr->confusing = TRUE;
				*ident = TRUE;
			}
			return TRUE;
		}

		case EF_MAPPING:
		{
			map_area();
			*ident = TRUE;
			return TRUE;
		}

		case EF_RUNE:
		{
			warding_glyph();
			*ident = TRUE;
			return TRUE;
		}

		case EF_ACQUIRE:
		{
			acquirement(py, px, p_ptr->depth, 1, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_ACQUIRE2:
		{
			acquirement(py, px, p_ptr->depth, randint1(2) + 1,
				TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_ANNOY_MON:
		{
			msg("There is a high pitched humming noise.");
			aggravate_monsters(0);
			*ident = TRUE;
			return TRUE;
		}

		case EF_CREATE_TRAP:
		{
			/* Hack -- no traps in the town */
			if (p_ptr->depth == 0)
				return TRUE;

			trap_creation();
			msg("You hear a low-pitched whistling sound.");
			*ident = TRUE;
			return TRUE;
		}

		case EF_DESTROY_TDOORS:
		{
			if (destroy_doors_touch()) *ident = TRUE;
			return TRUE;
		}

		case EF_RECHARGE:
		{
			*ident = TRUE;
			if (!recharge(60)) return FALSE;
			return TRUE;
		}

		case EF_BANISHMENT:
		{
			*ident = TRUE;
			if (!banishment()) return FALSE;
			return TRUE;
		}

		case EF_DARKNESS:
		{
			if (!check_state(OF_RES_DARK, p_ptr->state.flags))
				(void)inc_timed(TMD_BLIND, 3 + randint1(5), TRUE, TRUE);
			unlight_area(10, 3);
			wieldeds_notice_flag(OF_RES_DARK);
			*ident = TRUE;
			return TRUE;
		}

		case EF_PROTEVIL:
		{
			if (inc_timed(TMD_PROTEVIL, randint1(25) + 3 *
				p_ptr->lev, TRUE, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_SATISFY:
		{
			if (set_food(PY_FOOD_MAX - 1)) *ident = TRUE;
			return TRUE;
		}

		case EF_CURSE_WEAPON:
		{
			if (curse_weapon()) *ident = TRUE;
			return TRUE;
		}

		case EF_CURSE_ARMOR:
		{
			if (curse_armor()) *ident = TRUE;
			return TRUE;
		}

		case EF_BLESSING:
		{
			if (inc_timed(TMD_BLESSED, randint1(12) + 6, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_BLESSING2:
		{
			if (inc_timed(TMD_BLESSED, randint1(24) + 12, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_BLESSING3:
		{
			if (inc_timed(TMD_BLESSED, randint1(48) + 24, TRUE, TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_RECALL:
		{
			set_recall();
			*ident = TRUE;
			return TRUE;
		}

		case EF_DEEP_DESCENT:
		{
			int i, target_depth = p_ptr->depth;
			
			/* Calculate target depth */
			for (i = 2; i > 0; i--) {
				if (is_quest(target_depth)) break;
				if (target_depth >= MAX_DEPTH - 1) break;
				
				target_depth++;
			}

			if (target_depth > p_ptr->depth) {
				msgt(MSG_TPLEVEL, "You sink through the floor...");
				dungeon_change_level(target_depth);
				*ident = TRUE;
				return TRUE;
			} else {
				msgt(MSG_TPLEVEL, "You sense a malevolent presence blocking passage to the levels below.");
				*ident = TRUE;
				return FALSE;
			}
		}

		case EF_LOSHASTE:
		{
			if (speed_monsters()) *ident = TRUE;
			return TRUE;
		}

		case EF_LOSSLEEP:
		{
			if (sleep_monsters(aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_LOSSLOW:
		{
			if (slow_monsters()) *ident = TRUE;
			return TRUE;
		}

		case EF_LOSCONF:
		{
			if (confuse_monsters(aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_LOSKILL:
		{
			(void)mass_banishment();
			*ident = TRUE;
			return TRUE;
		}

		case EF_EARTHQUAKES:
		{
			earthquake(py, px, 10);
			*ident = TRUE;
			return TRUE;
		}

		case EF_DESTRUCTION2:
		{
			destroy_area(py, px, 15, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_ILLUMINATION:
		{
			if (light_area(damroll(2, 15), 3)) *ident = TRUE;
			return TRUE;
		}

		case EF_CLAIRVOYANCE:
		{
			*ident = TRUE;
			wiz_light();
			(void)detect_traps(TRUE);
			(void)detect_doorstairs(TRUE);
			return TRUE;
		}

		case EF_PROBING:
		{
			*ident = probing();
			return TRUE;
		}

		case EF_STONE_TO_MUD:
		{
			if (wall_to_mud(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_CONFUSE2:
		{
			*ident = TRUE;
			confuse_monster(dir, 20, aware);
			return TRUE;
		}

		case EF_BIZARRE:
		{
			*ident = TRUE;
			ring_of_power(dir);
			return TRUE;
		}

		case EF_STAR_BALL:
		{
			int i;
			*ident = TRUE;
			for (i = 0; i < 8; i++) fire_ball(GF_ELEC, ddd[i],
				(150 * (100 + boost) / 100), 3);
			return TRUE;
		}

		case EF_RAGE_BLESS_RESIST:
		{
			dur = randint1(50) + 50;
			*ident = TRUE;
			(void)hp_player(30);
			(void)clear_timed(TMD_AFRAID, TRUE);
			(void)inc_timed(TMD_BOLD, dur, TRUE, TRUE);
			(void)inc_timed(TMD_SHERO, dur, TRUE, TRUE);
			(void)inc_timed(TMD_BLESSED, randint1(50) + 50, TRUE, TRUE);
			(void)inc_timed(TMD_OPP_ACID, randint1(50) + 50, TRUE, TRUE);
			(void)inc_timed(TMD_OPP_ELEC, randint1(50) + 50, TRUE, TRUE);
			(void)inc_timed(TMD_OPP_FIRE, randint1(50) + 50, TRUE, TRUE);
			(void)inc_timed(TMD_OPP_COLD, randint1(50) + 50, TRUE, TRUE);
			(void)inc_timed(TMD_OPP_POIS, randint1(50) + 50, TRUE, TRUE);
			return TRUE;
		}

		case EF_SLEEPII:
		{
			*ident = TRUE;
			sleep_monsters_touch(aware);
			return TRUE;
		}

		case EF_RESTORE_LIFE:
		{
			*ident = TRUE;
			restore_level();
			return TRUE;
		}

		case EF_MISSILE:
		{
			*ident = TRUE;
			dam = damroll(3, 4) * (100 + boost) / 100;
			fire_bolt_or_beam(beam, GF_MISSILE, dir, dam);
			return TRUE;
		}

		case EF_DISPEL_EVIL:
		{
			*ident = TRUE;
			dam = p_ptr->lev * 5 * (100 + boost) / 100;
			dispel_evil(dam);
			return TRUE;
		}

		case EF_DISPEL_EVIL60:
		{
			dam = 60 * (100 + boost) / 100;
			if (dispel_evil(dam)) *ident = TRUE;
			return TRUE;
		}

		case EF_DISPEL_UNDEAD:
		{
			dam = 60 * (100 + boost) / 100;
			if (dispel_undead(dam)) *ident = TRUE;
			return TRUE;
		}

		case EF_DISPEL_ALL:
		{
			dam = 120 * (100 + boost) / 100;
			if (dispel_monsters(dam)) *ident = TRUE;
			return TRUE;
		}

		case EF_HASTE:
		{
			if (!p_ptr->timed[TMD_FAST])
			{
				if (set_timed(TMD_FAST, damroll(2, 10) + 20, TRUE)) *ident = TRUE;
			}
			else
			{
				(void)inc_timed(TMD_FAST, 5, TRUE, TRUE);
			}

			return TRUE;
		}

		case EF_HASTE1:
		{
			if (!p_ptr->timed[TMD_FAST])
			{
				if (set_timed(TMD_FAST, randint1(20) + 20, TRUE)) *ident = TRUE;
			}
			else
			{
				(void)inc_timed(TMD_FAST, 5, TRUE, TRUE);
			}

			return TRUE;
		}

		case EF_HASTE2:
		{
			if (!p_ptr->timed[TMD_FAST])
			{
				if (set_timed(TMD_FAST, randint1(75) + 75, TRUE)) *ident = TRUE;
			}
			else
			{
				(void)inc_timed(TMD_FAST, 5, TRUE, TRUE);
			}

			return TRUE;
		}


		case EF_FIRE_BOLT:
		{
			*ident = TRUE;
			dam = damroll(9, 8) * (100 + boost) / 100;
			fire_bolt(GF_FIRE, dir, dam);
			return TRUE;
		}

		case EF_FIRE_BOLT2:
		{
			dam = damroll(12, 8) * (100 + boost) / 100;
			fire_bolt_or_beam(beam, GF_FIRE, dir, dam);
			*ident = TRUE;
			return TRUE;
		}

		case EF_FIRE_BOLT3:
		{
			dam = damroll(16, 8) * (100 + boost) / 100;
			fire_bolt_or_beam(beam, GF_FIRE, dir, dam);
			*ident = TRUE;
			return TRUE;
		}

		case EF_FIRE_BOLT72:
		{
			dam = 72 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_FIRE, dir, dam, 2);
			return TRUE;
		}

		case EF_FIRE_BALL:
		{
			dam = 144 * (100 + boost) / 100;
			fire_ball(GF_FIRE, dir, dam, 2);
			*ident = TRUE;
			return TRUE;
		}

		case EF_FIRE_BALL2:
		{
			dam = 120 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_FIRE, dir, dam, 3);
			return TRUE;
		}

		case EF_FIRE_BALL200:
		{
			dam = 200 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_FIRE, dir, dam, 3);
			return TRUE;
		}

		case EF_COLD_BOLT:
		{
			dam = damroll(6, 8) * (100 + boost) / 100;
			*ident = TRUE;
			fire_bolt_or_beam(beam, GF_COLD, dir, dam);
			return TRUE;
		}

		case EF_COLD_BOLT2:
		{
			dam = damroll(12, 8) * (100 + boost) / 100;
			*ident = TRUE;
			fire_bolt(GF_COLD, dir, dam);
			return TRUE;
		}

		case EF_COLD_BALL2:
		{
			dam = 200 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_COLD, dir, dam, 3);
			return TRUE;
		}

		case EF_COLD_BALL50:
		{
			dam = 50 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_COLD, dir, dam, 2);
			return TRUE;
		}

		case EF_COLD_BALL100:
		{
			dam = 100 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_COLD, dir, dam, 2);
			return TRUE;
		}

		case EF_COLD_BALL160:
		{
			dam = 160 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_COLD, dir, dam, 3);
			return TRUE;
		}

		case EF_ACID_BOLT:
		{
			dam = damroll(5, 8) * (100 + boost) / 100;
			*ident = TRUE;
			fire_bolt(GF_ACID, dir, dam);
			return TRUE;
		}

		case EF_ACID_BOLT2:
		{
			dam = damroll(10, 8) * (100 + boost) / 100;
			fire_bolt_or_beam(beam, GF_ACID, dir, dam);
			*ident = TRUE;
			return TRUE;
		}

		case EF_ACID_BOLT3:
		{
			dam = damroll(12, 8) * (100 + boost) / 100;
			fire_bolt_or_beam(beam, GF_ACID, dir, dam);
			*ident = TRUE;
			return TRUE;
		}

		case EF_ACID_BALL:
		{
			dam = 120 * (100 + boost) / 100;
			fire_ball(GF_ACID, dir, dam, 2);
			*ident = TRUE;
			return TRUE;
		}

		case EF_ELEC_BOLT:
		{
			dam = damroll(6, 6) * (100 + boost) / 100;
			*ident = TRUE;
			fire_beam(GF_ELEC, dir, dam);
			return TRUE;
		}

		case EF_ELEC_BALL:
		{
			dam = 64 * (100 + boost) / 100;
			fire_ball(GF_ELEC, dir, dam, 2);
			*ident = TRUE;
			return TRUE;
		}

		case EF_ELEC_BALL2:
		{
			dam = 250 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_ELEC, dir, dam, 3);
			return TRUE;
		}


		case EF_ARROW:
		{
			dam = 150 * (100 + boost) / 100;
			*ident = TRUE;
			fire_bolt(GF_ARROW, dir, dam);
			return TRUE;
		}

		case EF_REM_FEAR_POIS:
		{
			*ident = TRUE;
			(void)clear_timed(TMD_AFRAID, TRUE);
			(void)clear_timed(TMD_POISONED, TRUE);
			return TRUE;
		}

		case EF_STINKING_CLOUD:
		{
			dam = 12 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_POIS, dir, dam, 3);
			return TRUE;
		}


		case EF_DRAIN_LIFE1:
		{
			dam = 90 * (100 + boost) / 100;
			if (drain_life(dir, dam)) *ident = TRUE;
			return TRUE;
		}

		case EF_DRAIN_LIFE2:
		{
			dam = 120 * (100 + boost) / 100;
			if (drain_life(dir, dam)) *ident = TRUE;
			return TRUE;
		}

		case EF_DRAIN_LIFE3:
		{
			dam = 150 * (100 + boost) / 100;
			if (drain_life(dir, dam)) *ident = TRUE;
			return TRUE;
		}

		case EF_DRAIN_LIFE4:
		{
			dam = 250 * (100 + boost) / 100;
			if (drain_life(dir, dam)) *ident = TRUE;
			return TRUE;
		}

		case EF_FIREBRAND:
		{
			*ident = TRUE;
			if (!brand_bolts()) return FALSE;
			return TRUE;
		}

		case EF_MANA_BOLT:
		{
			dam = damroll(12, 8) * (100 + boost) / 100;
			fire_bolt(GF_MANA, dir, dam);
			*ident = TRUE;
			return TRUE;
		}

		case EF_MON_HEAL:
		{
			if (heal_monster(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_MON_HASTE:
		{
			if (speed_monster(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_MON_SLOW:
		{
			if (slow_monster(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_MON_CONFUSE:
		{
			if (confuse_monster(dir, 10, aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_MON_SLEEP:
		{
			if (sleep_monster(dir, aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_MON_CLONE:
		{
			if (clone_monster(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_MON_SCARE:
		{
			if (fear_monster(dir, 10, aware)) *ident = TRUE;
			return TRUE;
		}

		case EF_LIGHT_LINE:
		{
			msg("A line of shimmering blue light appears.");
			light_line(dir);
			*ident = TRUE;
			return TRUE;
		}

		case EF_TELE_OTHER:
		{
			if (teleport_monster(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_DISARMING:
		{
			if (disarm_trap(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_TDOOR_DEST:
		{
			if (destroy_door(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_POLYMORPH:
		{
			if (poly_monster(dir)) *ident = TRUE;
			return TRUE;
		}

		case EF_STARLIGHT:
		{
			int i;
			if (!p_ptr->timed[TMD_BLIND])
				msg("Light shoots in all directions!");
			for (i = 0; i < 8; i++) light_line(ddd[i]);
			*ident = TRUE;
			return TRUE;
		}

		case EF_STARLIGHT2:
		{
			int k;
			for (k = 0; k < 8; k++) strong_light_line(ddd[k]);
			*ident = TRUE;
			return TRUE;
		}

		case EF_BERSERKER:
		{
			dur = randint1(50) + 50;
			if (inc_timed(TMD_BOLD, dur, TRUE, TRUE)) *ident = TRUE;
			if (inc_timed(TMD_SHERO, dur, TRUE, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_WONDER:
		{
			if (effect_wonder(dir, randint1(100) + p_ptr->lev / 5,
				beam)) *ident = TRUE;
			return TRUE;
		}

		case EF_WAND_BREATH:
		{
			/* table of random ball effects and their damages */
			const int breath_types[] = {
				GF_ACID, 200,
				GF_ELEC, 160,
				GF_FIRE, 200,
				GF_COLD, 160,
				GF_POIS, 120
			};
			/* pick a random (type, damage) tuple in the table */
			int which = 2 * randint0(sizeof(breath_types) / (2 * sizeof(int)));
			fire_ball(breath_types[which], dir, breath_types[which + 1], 3);
			*ident = TRUE;
			return TRUE;
		}

		case EF_STAFF_MAGI:
		{
			if (do_res_stat(A_INT)) *ident = TRUE;
			if (p_ptr->csp < p_ptr->msp)
			{
				p_ptr->csp = p_ptr->msp;
				p_ptr->csp_frac = 0;
				*ident = TRUE;
				msg("Your feel your head clear.");
				p_ptr->redraw |= (PR_MANA);
			}
			return TRUE;
		}

		case EF_STAFF_HOLY:
		{
			dam = 120 * (100 + boost) / 100;
			if (dispel_evil(dam)) *ident = TRUE;
			if (inc_timed(TMD_PROTEVIL, randint1(25) + 3 *
				p_ptr->lev, TRUE, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_POISONED, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_AFRAID, TRUE)) *ident = TRUE;
			if (hp_player(50)) *ident = TRUE;
			if (clear_timed(TMD_STUN, TRUE)) *ident = TRUE;
			if (clear_timed(TMD_CUT, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_DRINK_BREATH:
		{
			const int breath_types[] =
			{
				GF_FIRE, 80,
				GF_COLD, 80,
			};

			int which = 2 * randint0(N_ELEMENTS(breath_types) / 2);
			fire_ball(breath_types[which], dir, breath_types[which + 1], 2);
			*ident = TRUE;
			return TRUE;
		}

		case EF_DRINK_GOOD:
		{
			msg("You feel less thirsty.");
			*ident = TRUE;
			return TRUE;
		}

		case EF_DRINK_DEATH:
		{
			msg("A feeling of Death flows through your body.");
			take_hit(5000, "a potion of Death");
			*ident = TRUE;
			return TRUE;
		}

		case EF_DRINK_RUIN:
		{
			msg("Your nerves and muscles feel weak and lifeless!");
			take_hit(damroll(10, 10), "a potion of Ruination");
			player_stat_dec(p_ptr, A_DEX, TRUE);
			player_stat_dec(p_ptr, A_WIS, TRUE);
			player_stat_dec(p_ptr, A_CON, TRUE);
			player_stat_dec(p_ptr, A_STR, TRUE);
			player_stat_dec(p_ptr, A_CHR, TRUE);
			player_stat_dec(p_ptr, A_INT, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_DRINK_DETONATE:
		{
			msg("Massive explosions rupture your body!");
			take_hit(damroll(50, 20), "a potion of Detonation");
			(void)inc_timed(TMD_STUN, 75, TRUE, TRUE);
			(void)inc_timed(TMD_CUT, 5000, TRUE, TRUE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_DRINK_SALT:
		{
			msg("The potion makes you vomit!");
			(void)set_food(PY_FOOD_STARVE - 1);
			(void)clear_timed(TMD_POISONED, TRUE);
			(void)inc_timed(TMD_PARALYZED, 4, TRUE, FALSE);
			*ident = TRUE;
			return TRUE;
		}

		case EF_FOOD_GOOD:
		{
			msg("That tastes good.");
			*ident = TRUE;
			return TRUE;
		}

		case EF_FOOD_WAYBREAD:
		{
			msg("That tastes good.");
			(void)clear_timed(TMD_POISONED, TRUE);
			(void)hp_player(damroll(4, 8));
			*ident = TRUE;
			return TRUE;
		}

		case EF_SHROOM_EMERGENCY:
		{
			(void)set_timed(TMD_IMAGE, rand_spread(250, 50), TRUE);
			(void)set_timed(TMD_OPP_FIRE, rand_spread(30, 10), TRUE);
			(void)set_timed(TMD_OPP_COLD, rand_spread(30, 10), TRUE);
			(void)hp_player(200);
			*ident = TRUE;
			return TRUE;
		}

		case EF_SHROOM_TERROR:
		{
			if (set_timed(TMD_TERROR, rand_spread(100, 20), TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_SHROOM_STONE:
		{
			if (set_timed(TMD_STONESKIN, rand_spread(80, 20), TRUE))
				*ident = TRUE;
			return TRUE;
		}

		case EF_SHROOM_DEBILITY:
		{
			int stat = one_in_(2) ? A_STR : A_CON;

			if (p_ptr->csp < p_ptr->msp)
			{
				p_ptr->csp = p_ptr->msp;
				p_ptr->csp_frac = 0;
				msg("Your feel your head clear.");
				p_ptr->redraw |= (PR_MANA);
				*ident = TRUE;
			}

			(void)do_dec_stat(stat, FALSE);

			*ident = TRUE;
			return TRUE;
		}

		case EF_SHROOM_SPRINTING:
		{
			if (inc_timed(TMD_SPRINT, 100, TRUE, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_SHROOM_PURGING:
		{
			(void)set_food(PY_FOOD_FAINT - 1);
			if (do_res_stat(A_STR)) *ident = TRUE;
			if (do_res_stat(A_CON)) *ident = TRUE;
			if (clear_timed(TMD_POISONED, TRUE)) *ident = TRUE;
			return TRUE;
		}

		case EF_RING_ACID:
		{
			dam = 70 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_ACID, dir, dam, 2);
			inc_timed(TMD_OPP_ACID, randint1(20) + 20, TRUE, TRUE);
			return TRUE;
		}

		case EF_RING_FLAMES:
		{
			dam = 80 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_FIRE, dir, dam, 2);
			inc_timed(TMD_OPP_FIRE, randint1(20) + 20, TRUE, TRUE);
			return TRUE;
		}

		case EF_RING_ICE:
		{
			dam = 75 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_COLD, dir, dam, 2);
			inc_timed(TMD_OPP_COLD, randint1(20) + 20, TRUE, TRUE);
			return TRUE;
		}

		case EF_RING_LIGHTNING:
		{
			dam = 85 * (100 + boost) / 100;
			*ident = TRUE;
			fire_ball(GF_ELEC, dir, dam, 2);
			inc_timed(TMD_OPP_ELEC, randint1(20) + 20, TRUE, TRUE);
			return TRUE;
		}

		case EF_DRAGON_BLUE:
		{
			dam = 100 * (100 + boost) / 100;
			msgt(MSG_BR_ELEC, "You breathe lightning.");
			fire_ball(GF_ELEC, dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_GREEN:
		{
			dam = 150 * (100 + boost) / 100;
			msgt(MSG_BR_GAS, "You breathe poison gas.");
			fire_ball(GF_POIS, dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_RED:
		{
			dam = 200 * (100 + boost) / 100;
			msgt(MSG_BR_FIRE, "You breathe fire.");
			fire_ball(GF_FIRE, dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_MULTIHUED:
		{
			static const struct
			{
				int msg_sound;
				const char *msg;
				int typ;
			} mh[] =
			{
				{ MSG_BR_ELEC,  "lightning",  GF_ELEC },
				{ MSG_BR_FROST, "frost",      GF_COLD },
				{ MSG_BR_ACID,  "acid",       GF_ACID },
				{ MSG_BR_GAS,   "poison gas", GF_POIS },
				{ MSG_BR_FIRE,  "fire",       GF_FIRE }
			};

			int chance = randint0(5);
			dam = 250 * (100 + boost) / 100;
			msgt(mh[chance].msg_sound, "You breathe %s.", mh[chance].msg);
			fire_ball(mh[chance].typ, dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_BRONZE:
		{
			dam = 120 * (100 + boost) / 100;
			msgt(MSG_BR_CONF, "You breathe confusion.");
			fire_ball(GF_CONFU, dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_GOLD:
		{
			dam = 130 * (100 + boost) / 100;
			msgt(MSG_BR_SOUND, "You breathe sound.");
			fire_ball(GF_SOUND, dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_CHAOS:
		{
			dam = 220 * (100 + boost) / 100;
			chance = randint0(2);
			msgt((chance == 1 ? MSG_BR_CHAOS : MSG_BR_DISEN),
					"You breathe %s.",
					((chance == 1 ? "chaos" : "disenchantment")));
			fire_ball((chance == 1 ? GF_CHAOS : GF_DISEN),
			          dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_LAW:
		{
			dam = 230 * (100 + boost) / 100;
			chance = randint0(2);
			msgt((chance == 1 ? MSG_BR_SOUND : MSG_BR_SHARDS), "You breathe %s.",
			           ((chance == 1 ? "sound" : "shards")));
			fire_ball((chance == 1 ? GF_SOUND : GF_SHARD),
			          dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_BALANCE:
		{
			dam = 250 * (100 + boost) / 100;
			chance = randint0(4);
			msg("You breathe %s.",
			           ((chance == 1) ? "chaos" :
			            ((chance == 2) ? "disenchantment" :
			             ((chance == 3) ? "sound" : "shards"))));
			fire_ball(((chance == 1) ? GF_CHAOS :
			           ((chance == 2) ? GF_DISEN :
			            ((chance == 3) ? GF_SOUND : GF_SHARD))),
			          dir, dam, 2);
			return TRUE;
		}

		case EF_DRAGON_SHINING:
		{
			dam = 200 * (100 + boost) / 100;
			chance = randint0(2);
			msgt((chance == 0 ? MSG_BR_LIGHT : MSG_BR_DARK), "You breathe %s.",
			        ((chance == 0 ? "light" : "darkness")));
			fire_ball((chance == 0 ? GF_LIGHT : GF_DARK), dir, dam,
				2);
			return TRUE;
		}

		case EF_DRAGON_POWER:
		{
			dam = 300 * (100 + boost) / 100;
			msgt(MSG_BR_ELEMENTS, "You breathe the elements.");
			fire_ball(GF_MISSILE, dir, dam, 2);
			return TRUE;
		}

		case EF_TRAP_DOOR:
		{
			msg("You fall through a trap door!");
			if (check_state(OF_FEATHER, p_ptr->state.flags)) {
				msg("You float gently down to the next level.");
			} else {
				take_hit(damroll(2, 8), "a trap");
			}
			wieldeds_notice_flag(OF_FEATHER);

			dungeon_change_level(p_ptr->depth + 1);
			return TRUE;
		}

		case EF_TRAP_PIT:
		{
			msg("You fall into a pit!");
			if (check_state(OF_FEATHER, p_ptr->state.flags)) {
				msg("You float gently to the bottom of the pit.");
			} else {
				take_hit(damroll(2, 6), "a trap");
			}
			wieldeds_notice_flag(OF_FEATHER);
			return TRUE;
		}

		case EF_TRAP_PIT_SPIKES:
		{
			msg("You fall into a spiked pit!");

			if (check_state(OF_FEATHER, p_ptr->state.flags)) {
				msg("You float gently to the floor of the pit.");
				msg("You carefully avoid touching the spikes.");
			} else {
				int dam = damroll(2, 6);

				/* Extra spike damage */
				if (one_in_(2)) {
					msg("You are impaled!");
					dam *= 2;
					(void)inc_timed(TMD_CUT, randint1(dam), TRUE, TRUE);
				}

				take_hit(dam, "a trap");
			}
			wieldeds_notice_flag(OF_FEATHER);
			return TRUE;
		}

		case EF_TRAP_PIT_POISON:
		{
			msg("You fall into a spiked pit!");

			if (check_state(OF_FEATHER, p_ptr->state.flags)) {
				msg("You float gently to the floor of the pit.");
				msg("You carefully avoid touching the spikes.");
			} else {
				int dam = damroll(2, 6);

				/* Extra spike damage */
				if (one_in_(2)) {
					msg("You are impaled on poisonous spikes!");
					(void)inc_timed(TMD_CUT, randint1(dam * 2), TRUE, TRUE);
					(void)inc_timed(TMD_POISONED, randint1(dam * 4), TRUE, TRUE);
				}

				take_hit(dam, "a trap");
			}
			wieldeds_notice_flag(OF_FEATHER);
			return TRUE;
		}

		case EF_TRAP_RUNE_SUMMON:
		{
			int i;
			int num = 2 + randint1(3);

			msgt(MSG_SUM_MONSTER, "You are enveloped in a cloud of smoke!");

			/* Remove trap */
			cave->info[py][px] &= ~(CAVE_MARK);
			cave_set_feat(cave, py, px, FEAT_FLOOR);

			for (i = 0; i < num; i++)
				(void)summon_specific(py, px, p_ptr->depth, 0, 1);

			break;
		}

		case EF_TRAP_RUNE_TELEPORT:
		{
			msg("You hit a teleport trap!");
			teleport_player(100);
			return TRUE;		
		}

		case EF_TRAP_SPOT_FIRE:
		{
			int dam;

			msg("You are enveloped in flames!");
			dam = damroll(4, 6);
			dam = adjust_dam(GF_FIRE, dam, RANDOMISE,
					check_for_resist(GF_FIRE, p_ptr->state.flags, TRUE));
			if (dam) {
				take_hit(dam, "a fire trap");
				inven_damage(GF_FIRE, MIN(dam * 5, 300));
			}
			return TRUE;
		}

		case EF_TRAP_SPOT_ACID:
		{
			int dam;

			msg("You are splashed with acid!");
			dam = damroll(4, 6);
			dam = adjust_dam(GF_ACID, dam, RANDOMISE,
					check_for_resist(GF_ACID, p_ptr->state.flags, TRUE));
			if (dam) {
				take_hit(dam, "an acid trap");
				inven_damage(GF_ACID, MIN(dam * 5, 300));
			}
			return TRUE;
		}

		case EF_TRAP_DART_SLOW:
		{
			if (trap_check_hit(125)) {
				msg("A small dart hits you!");
				take_hit(damroll(1, 4), "a trap");
				(void)inc_timed(TMD_SLOW, randint0(20) + 20, TRUE, FALSE);
			} else {
				msg("A small dart barely misses you.");
			}
			return TRUE;
		}

		case EF_TRAP_DART_LOSE_STR:
		{
			if (trap_check_hit(125)) {
				msg("A small dart hits you!");
				take_hit(damroll(1, 4), "a trap");
				(void)do_dec_stat(A_STR, FALSE);
			} else {
				msg("A small dart barely misses you.");
			}
			return TRUE;
		}

		case EF_TRAP_DART_LOSE_DEX:
		{
			if (trap_check_hit(125)) {
				msg("A small dart hits you!");
				take_hit(damroll(1, 4), "a trap");
				(void)do_dec_stat(A_DEX, FALSE);
			} else {
				msg("A small dart barely misses you.");
			}
			return TRUE;
		}

		case EF_TRAP_DART_LOSE_CON:
		{
			if (trap_check_hit(125)) {
				msg("A small dart hits you!");
				take_hit(damroll(1, 4), "a trap");
				(void)do_dec_stat(A_CON, FALSE);
			} else {
				msg("A small dart barely misses you.");
			}
			return TRUE;
		}

		case EF_TRAP_GAS_BLIND:
		{
			msg("You are surrounded by a black gas!");
			(void)inc_timed(TMD_BLIND, randint0(50) + 25, TRUE, TRUE);
			return TRUE;
		}

		case EF_TRAP_GAS_CONFUSE:
		{
			msg("You are surrounded by a gas of scintillating colors!");
			(void)inc_timed(TMD_CONFUSED, randint0(20) + 10, TRUE, TRUE);
			return TRUE;
		}

		case EF_TRAP_GAS_POISON:
		{
			msg("You are surrounded by a pungent green gas!");
			(void)inc_timed(TMD_POISONED, randint0(20) + 10, TRUE, TRUE);
			return TRUE;
		}

		case EF_TRAP_GAS_SLEEP:
		{
			msg("You are surrounded by a strange white mist!");
			(void)inc_timed(TMD_PARALYZED, randint0(10) + 5, TRUE, TRUE);
			return TRUE;
		}


		case EF_XXX:
		case EF_MAX:
			break;
	}

	/* Not used */
	msg("Effect not handled.");
	return FALSE;
}
Esempio n. 6
0
/**
 * Handle things that need updating once every 10 game turns
 */
void process_world(struct chunk *c)
{
	int i, y, x;

	/* Compact the monster list if we're approaching the limit */
	if (cave_monster_count(cave) + 32 > z_info->level_monster_max)
		compact_monsters(64);

	/* Too many holes in the monster list - compress */
	if (cave_monster_count(cave) + 32 < cave_monster_max(cave))
		compact_monsters(0);

	/*** Check the Time ***/

	/* Play an ambient sound at regular intervals. */
	if (!(turn % ((10L * z_info->day_length) / 4)))
		play_ambient_sound();

	/*** Handle stores and sunshine ***/

	if (!player->depth) {
		/* Daybreak/Nighfall in town */
		if (!(turn % ((10L * z_info->day_length) / 2))) {
			bool dawn;

			/* Check for dawn */
			dawn = (!(turn % (10L * z_info->day_length)));

			/* Day breaks */
			if (dawn)
				msg("The sun has risen.");

			/* Night falls */
			else
				msg("The sun has fallen.");

			/* Illuminate */
			cave_illuminate(c, dawn);
		}
	} else {
		/* Update the stores once a day (while in the dungeon).
		   The changes are not actually made until return to town,
		   to avoid giving details away in the knowledge menu. */
		if (!(turn % (10L * z_info->store_turns))) daycount++;
	}


	/* Check for creature generation */
	if (one_in_(z_info->alloc_monster_chance))
		(void)pick_and_place_distant_monster(cave, player,
											 z_info->max_sight + 5, true,
											 player->depth);

	/*** Damage over Time ***/

	/* Take damage from poison */
	if (player->timed[TMD_POISONED])
		take_hit(player, 1, "poison");

	/* Take damage from cuts */
	if (player->timed[TMD_CUT]) {
		/* Mortal wound or Deep Gash */
		if (player->timed[TMD_CUT] > TMD_CUT_SEVERE)
			i = 3;

		/* Severe cut */
		else if (player->timed[TMD_CUT] > TMD_CUT_NASTY)
			i = 2;

		/* Other cuts */
		else
			i = 1;

		/* Take damage */
		take_hit(player, i, "a fatal wound");
	}


	/*** Check the Food, and Regenerate ***/

	/* Digest normally */
	if (!(turn % 100)) {
		/* Basic digestion rate based on speed */
		i = turn_energy(player->state.speed) * 2;

		/* Regeneration takes more food */
		if (player_of_has(player, OF_REGEN)) i += 30;

		/* Slow digestion takes less food */
		if (player_of_has(player, OF_SLOW_DIGEST)) i /= 5;

		/* Minimal digestion */
		if (i < 1) i = 1;

		/* Digest some food */
		player_set_food(player, player->food - i);
	}

	/* Getting Faint */
	if (player->food < PY_FOOD_FAINT) {
		/* Faint occasionally */
		if (!player->timed[TMD_PARALYZED] && one_in_(10)) {
			/* Message */
			msg("You faint from the lack of food.");
			disturb(player, 1);

			/* Faint (bypass free action) */
			(void)player_inc_timed(player, TMD_PARALYZED, 1 + randint0(5),
								   true, false);
		}
	}

	/* Starve to death (slowly) */
	if (player->food < PY_FOOD_STARVE) {
		/* Calculate damage */
		i = (PY_FOOD_STARVE - player->food) / 10;

		/* Take damage */
		take_hit(player, i, "starvation");
	}

	/* Regenerate Hit Points if needed */
	if (player->chp < player->mhp)
		player_regen_hp(player);

	/* Regenerate mana if needed */
	if (player->csp < player->msp)
		player_regen_mana(player);

	/* Timeout various things */
	decrease_timeouts();

	/* Process light */
	player_update_light(player);


	/*** Process Inventory ***/

	/* Handle experience draining */
	if (player_of_has(player, OF_DRAIN_EXP)) {
		if ((player->exp > 0) && one_in_(10)) {
			s32b d = damroll(10, 6) +
				(player->exp / 100) * z_info->life_drain_percent;
			player_exp_lose(player, d / 10, false);
		}

		equip_learn_flag(player, OF_DRAIN_EXP);
	}

	/* Recharge activatable objects and rods */
	recharge_objects();

	/* Notice things after time */
	if (!(turn % 100))
		equip_learn_after_time(player);

	/* Decrease trap timeouts */
	for (y = 0; y < cave->height; y++) {
		for (x = 0; x < cave->width; x++) {
			struct trap *trap = cave->squares[y][x].trap;
			while (trap) {
				if (trap->timeout) {
					trap->timeout--;
					if (!trap->timeout)
						square_light_spot(cave, y, x);
				}
				trap = trap->next;
			}
		}
	}


	/*** Involuntary Movement ***/

	/* Delayed Word-of-Recall */
	if (player->word_recall) {
		/* Count down towards recall */
		player->word_recall--;

		/* Activate the recall */
		if (!player->word_recall) {
			/* Disturbing! */
			disturb(player, 0);

			/* Determine the level */
			if (player->depth) {
				msgt(MSG_TPLEVEL, "You feel yourself yanked upwards!");
				dungeon_change_level(player, 0);
			} else {
				msgt(MSG_TPLEVEL, "You feel yourself yanked downwards!");
                
                /* Force descent to a lower level if allowed */
                if (OPT(player, birth_force_descend) &&
					player->max_depth < z_info->max_depth - 1 &&
					!is_quest(player->max_depth)) {
                    player->max_depth = dungeon_get_next_level(player->max_depth, 1);
                }

				/* New depth - back to max depth or 1, whichever is deeper */
				dungeon_change_level(player, player->max_depth < 1 ? 1: player->max_depth);
			}
		}
	}

	/* Delayed Deep Descent */
	if (player->deep_descent) {
		/* Count down towards recall */
		player->deep_descent--;

		/* Activate the recall */
		if (player->deep_descent == 0) {
			int target_increment;
			int target_depth = player->max_depth;

			/* Calculate target depth */
			target_increment = (4 / z_info->stair_skip) + 1;
			target_depth = dungeon_get_next_level(player->max_depth, target_increment);

			disturb(player, 0);

			/* Determine the level */
			if (target_depth > player->depth) {
				msgt(MSG_TPLEVEL, "The floor opens beneath you!");
				dungeon_change_level(player, target_depth);
			} else {
				/* Otherwise do something disastrous */
				msgt(MSG_TPLEVEL, "You are thrown back in an explosion!");
				effect_simple(EF_DESTRUCTION, "0", 0, 5, 0, NULL);
			}		
		}
	}
}
Esempio n. 7
0
/*
 * Aux function for "do_cmd_wiz_change()"
 */
static void do_cmd_wiz_change_aux(void)
{
	int i;

	int tmp_int;

	long tmp_long;

	char tmp_val[160];

	char ppp[80];


	/* Query the stats */
	for (i = 0; i < A_MAX; i++)
	{
		/* Prompt */
		strnfmt(ppp, sizeof(ppp), "%s (3-118): ", stat_names[i]);

		/* Default */
		strnfmt(tmp_val, sizeof(tmp_val), "%d", p_ptr->stat_max[i]);

		/* Query */
		if (!get_string(ppp, tmp_val, 4)) return;

		/* Extract */
		tmp_int = atoi(tmp_val);

		/* Verify */
		if (tmp_int > 18+100) tmp_int = 18+100;
		else if (tmp_int < 3) tmp_int = 3;

		/* Save it */
		p_ptr->stat_cur[i] = p_ptr->stat_max[i] = tmp_int;
	}


	/* Default */
	strnfmt(tmp_val, sizeof(tmp_val), "%ld", (long)(p_ptr->au));

	/* Query */
	if (!get_string("Gold: ", tmp_val, 10)) return;

	/* Extract */
	tmp_long = atol(tmp_val);

	/* Verify */
	if (tmp_long < 0) tmp_long = 0L;

	/* Save */
	p_ptr->au = tmp_long;


	/* Default */
	strnfmt(tmp_val, sizeof(tmp_val), "%ld", (long)(p_ptr->exp));

	/* Query */
	if (!get_string("Experience: ", tmp_val, 10)) return;

	/* Extract */
	tmp_long = atol(tmp_val);

	/* Verify */
	if (tmp_long < 0) tmp_long = 0L;

	if (tmp_long > p_ptr->exp)
		player_exp_gain(p_ptr, tmp_long - p_ptr->exp);
	else
		player_exp_lose(p_ptr, p_ptr->exp - tmp_long, FALSE);
}
Esempio n. 8
0
/**
 * Apply side effects from a spell attack to the player
 *
 * \param spell is the attack type
 * \param dam is the amount of damage caused by the attack
 * \param m_idx is the attacking monster
 * \param rlev is its level
 * \param seen is whether @ can see it
 */
static void do_side_effects(int spell, int dam, int m_idx, bool seen)
{
	monster_type *m_ptr = cave_monster(cave, m_idx);
	monster_race *r_ptr = &r_info[m_ptr->r_idx];

	const struct spell_effect *re_ptr;
	const struct mon_spell *rs_ptr = &mon_spell_table[spell];

	int i, choice[99], dur = 0, j = 0, count = 0;
	s32b d = 0;

	bool sustain = FALSE, perma = FALSE, chosen[RSE_MAX] = { 0 };

	/* Extract the monster level */
	int rlev = ((r_ptr->level >= 1) ? r_ptr->level : 1);

	/* First we note all the effects we'll be doing. */
	for (re_ptr = spell_effect_table; re_ptr->index < RSE_MAX; re_ptr++) {
		if ((re_ptr->method && (re_ptr->method == rs_ptr->index)) ||
				(re_ptr->gf && (re_ptr->gf == rs_ptr->gf))) {

			/* If we have a choice of effects, we create a cum freq table */
			if (re_ptr->chance) {
				for (i = j; i < (j + re_ptr->chance); i++)
					choice[i] = re_ptr->index;
				j = i;
			}
			else
				chosen[re_ptr->index] = TRUE;
		}
	}

	/* If we have built a cum freq table, choose an effect from it */
	if (j)
		chosen[choice[randint0(j)]] = TRUE;

	/* Now we cycle through again to activate the chosen effects */
	for (re_ptr = spell_effect_table; re_ptr->index < RSE_MAX; re_ptr++) {
		if (chosen[re_ptr->index]) {

			/*
			 * Check for resistance - there are three possibilities:
			 * 1. Immunity to the attack type if side_immune is TRUE
			 * 2. Resistance to the attack type if it affords no immunity
			 * 3. Resistance to the specific side-effect
			 *
			 * TODO - add interesting messages to the RSE_ and GF_ tables
			 * to replace the generic ones below. (See #1376)
			 */
			if (re_ptr->res_flag)
				update_smart_learn(m_ptr, p_ptr, re_ptr->res_flag);

			if ((rs_ptr->gf && check_side_immune(rs_ptr->gf)) ||
					check_state(p_ptr, re_ptr->res_flag, p_ptr->state.flags)) {
				msg("You resist the effect!");
				continue;
			}

			/* Allow saving throw if available */
			if (re_ptr->save &&
					randint0(100) < p_ptr->state.skills[SKILL_SAVE]) {
				msg("You avoid the effect!");
				continue;
			}

			/* Implement the effect */
			if (re_ptr->timed) {

				/* Calculate base duration (m_bonus is not used) */
				dur = randcalc(re_ptr->base, 0, RANDOMISE);

				/* Calculate the damage-dependent duration (m_bonus is
				 * used as a cap) */
				dur += damcalc(re_ptr->dam.dice, re_ptr->dam.sides *
						dam / 100, RANDOMISE);

				if (re_ptr->dam.m_bonus && (dur > re_ptr->dam.m_bonus))
					dur = re_ptr->dam.m_bonus;

				/* Apply the effect - we have already checked for resistance */
				(void)player_inc_timed(p_ptr, re_ptr->flag, dur, TRUE, FALSE);

			} else {
				switch (re_ptr->flag) {
					case S_INV_DAM:
						if (dam > 0)
							inven_damage(p_ptr, re_ptr->gf, MIN(dam *
								randcalc(re_ptr->dam, 0, RANDOMISE), 300));
						break;

					case S_TELEPORT: /* m_bonus is used as a clev filter */
						if (!re_ptr->dam.m_bonus || 
								randint1(re_ptr->dam.m_bonus) > p_ptr->lev)
							teleport_player(randcalc(re_ptr->base, 0,
								RANDOMISE));
						break;

					case S_TELE_TO:
						teleport_player_to(m_ptr->fy, m_ptr->fx);
						break;

					case S_TELE_LEV:
						teleport_player_level();
						break;

					case S_TELE_SELF:
						teleport_away(m_ptr, randcalc(re_ptr->base, 0,
							RANDOMISE));
						break;

					case S_DRAIN_LIFE:
						d = re_ptr->base.base + (p_ptr->exp *
							re_ptr->base.sides / 100) * MON_DRAIN_LIFE;

						msg("You feel your life force draining away!");
						player_exp_lose(p_ptr, d, FALSE);
						break;

					case S_DRAIN_STAT: /* m_bonus is used as a flag */
						if (re_ptr->dam.m_bonus > 0)
							sustain = TRUE;

						if (abs(re_ptr->dam.m_bonus) > 1)
							perma = TRUE;

						drain_stats(randcalc(re_ptr->base, 0, RANDOMISE),
							sustain, perma);
						break;

					case S_SWAP_STAT:
						swap_stats();
						break;

					case S_DRAIN_ALL:
						msg("You're not as powerful as you used to be...");

						for (i = 0; i < A_MAX; i++)
							player_stat_dec(p_ptr, i, FALSE);
						break;

					case S_DISEN:
						(void)apply_disenchant(0);
						break;

					case S_DRAIN_MANA:
						drain_mana(m_idx, rlev, seen);
						break;

					case S_HEAL:
						heal_self(m_idx, rlev, seen);
						break;

					case S_DARKEN:
						(void)unlight_area(0, 3);
						break;

					case S_TRAPS:
						(void)trap_creation();
						break;

					case S_AGGRAVATE:
						aggravate_monsters(m_idx);
						break;

					case S_KIN:
						summon_kin_type = r_ptr->d_char;
					case S_MONSTER:	case S_MONSTERS:
					case S_SPIDER: case S_HOUND: case S_HYDRA: case S_AINU:
					case S_ANIMAL:
					case S_DEMON: case S_HI_DEMON:
					case S_UNDEAD: case S_HI_UNDEAD: case S_WRAITH:
					case S_DRAGON: case S_HI_DRAGON:
					case S_UNIQUE:
						count = summon_monster_aux(re_ptr->flag, m_idx, rlev, re_ptr->base.base);

						/* In the special case that uniques or wraiths were summoned but all were dead
							S_HI_UNDEAD is used instead */
						if ((!count) && ((re_ptr->flag == S_WRAITH) || (re_ptr->flag == S_UNIQUE)))
							count = summon_monster_aux(S_HI_UNDEAD, m_idx, rlev, re_ptr->base.base);

						if (count && p_ptr->timed[TMD_BLIND])
							msgt(rs_ptr->msgt, "You hear %s appear nearby.",
								(count > 1 ? "many things" : "something"));

					default:
						break;
				}		
			}
		}
	}
	return;
}