/*
 * Check if two monsters are enemies
 */
bool are_enemies(monster_type *m_ptr, monster_type *n_ptr)
{
    monster_race *r_ptr = &r_info[m_ptr->r_idx];
    monster_race *s_ptr = &r_info[n_ptr->r_idx];

    if (p_ptr->inside_battle)
    {
        if (is_pet(m_ptr) || is_pet(n_ptr)) return FALSE;
        return TRUE;
    }

    if ((r_ptr->flags8 & (RF8_WILD_TOWN | RF8_WILD_ALL))
        && (s_ptr->flags8 & (RF8_WILD_TOWN | RF8_WILD_ALL)))
    {
        if (!is_pet(m_ptr) && !is_pet(n_ptr)) return FALSE;
    }

    /* Friendly vs. opposite aligned normal or pet */
    if (check_hostile_align(m_ptr->sub_align, n_ptr->sub_align))
    {
        /* No monster fighting (option) except involving pets */
        if (!allow_hostile_monster && !is_pet(m_ptr) && !is_pet(n_ptr)) return FALSE;

        if (!(m_ptr->mflag2 & MFLAG2_CHAMELEON) || !(n_ptr->mflag2 & MFLAG2_CHAMELEON)) return TRUE;
    }

    /* Hostile vs. non-hostile */
    if (is_hostile(m_ptr) != is_hostile(n_ptr))
    {
        return TRUE;
    }

    /* Default */
    return FALSE;
}
identified_danger assess_danger(
	const const_entity_handle& victim, 
	const const_entity_handle& danger
) {
	identified_danger result;

	const auto* const sentience = victim.find<components::sentience>();

	if (!sentience) {
		return result;
	}

	result.danger = danger;

	const auto* const missile = danger.find<invariants::missile>();
	const auto* const attitude = danger.find<components::attitude>();

	if ((!missile && !attitude) || (missile && danger.get<components::sender>().is_sender_subject(victim))) {
		return result;
	}

	const auto victim_pos = victim.get_logic_transform().pos;
	const auto danger_pos = danger.get_logic_transform().pos;
	const auto danger_vel = danger.get_owner_of_colliders().get_effective_velocity();
	const auto danger_dir = (danger_pos - victim_pos);
	const auto danger_distance = danger_dir.length();

	result.recommended_evasion = augs::danger_avoidance(victim_pos, danger_pos, danger_vel);
	result.recommended_evasion.normalize();

	const auto& sentience_def = victim.get<invariants::sentience>();
	const auto comfort_zone = sentience_def.comfort_zone;
	const auto comfort_zone_disturbance_ratio = augs::disturbance(danger_distance, comfort_zone);

	if (missile) {
		result.amount += comfort_zone_disturbance_ratio * missile->damage.base*4;
	}

	if (attitude) {
		const auto att = calc_attitude(danger, victim);
		
		if (is_hostile(att)) {
			result.amount += comfort_zone_disturbance_ratio * sentience_def.danger_amount_from_hostile_attitude;
		}
	}
	
	return result;
}
entity_id get_closest_hostile(
	const const_entity_handle subject,
	const const_entity_handle subject_attitude,
	const real32 radius,
	const b2Filter filter
) {
	const auto& cosm = subject.get_cosmos();
	const auto si = cosm.get_si();

	const auto& physics = cosm.get_solvable_inferred().physics;
	const auto transform = subject.get_logic_transform();

	entity_id closest_hostile;

	auto min_distance = std::numeric_limits<real32>::max();

	if (subject_attitude.alive()) {
		const auto subject_attitude_transform = subject_attitude.get_logic_transform();

		physics.for_each_in_aabb(
			si,
			transform.pos - vec2(radius, radius),
			transform.pos + vec2(radius, radius),
			filter,
			[&](const b2Fixture& fix) {
				const const_entity_handle s = cosm[get_body_entity_that_owns(fix)];

				if (s != subject && s.has<components::attitude>() && !sentient_and_unconscious(s)) {
					const auto calculated_attitude = calc_attitude(s, subject_attitude);

					if (is_hostile(calculated_attitude)) {
						const auto dist = (s.get_logic_transform().pos - subject_attitude_transform.pos).length_sq();

						if (dist < min_distance) {
							closest_hostile = s;
							min_distance = dist;
						}
					}
				}

				return callback_result::CONTINUE;
			}
		);
	}

	return closest_hostile;
}
Esempio n. 4
0
/****************************************************************
 * Spells
 ****************************************************************/
static void _kiss_spell(int cmd, variant *res)
{
    switch (cmd)
    {
    case SPELL_NAME:
        var_set_string(res, "Kiss");
        break;
    case SPELL_DESC:
        var_set_string(res, "Attempt to charm an adjacent monster.");
        break;
    case SPELL_COST_EXTRA:
        var_set_int(res, p_ptr->lev * 2);
        break;
    case SPELL_CAST:
    {
        int y, x, dir = 0, m_idx;
        var_set_bool(res, FALSE);
        if (!get_rep_dir2(&dir)) return;
        if (dir == 5) return;

        y = py + ddy[dir];
        x = px + ddx[dir];

        m_idx = cave[y][x].m_idx;
        if (m_idx)
        {
            monster_type *m_ptr = &m_list[m_idx];
            monster_race *r_ptr = &r_info[m_ptr->r_idx];
            char desc[MAX_NLEN];
            monster_desc(desc, m_ptr, 0);
            if ((r_ptr->flags1 & RF1_UNIQUE) || mon_save_p(m_ptr->r_idx, A_CHR))
            {
                set_monster_csleep(m_idx, 0);
                if (is_hostile(m_ptr))
                {
                    switch (randint1(10))
                    {
                    case 1:
                        msg_format("%^s says 'Impudent Strumpet!'", desc);
                        break;
                    case 2:
                        msg_format("%^s says 'Ewwww! Gross!!'", desc);
                        break;
                    case 3:
                        msg_format("%^s says 'You ain't my type!'", desc);
                        break;
                    default:
                        msg_format("%^s resists your charms.", desc);
                    }

                    if (allow_ticked_off(r_ptr))
                    {
                        m_ptr->anger_ct++;
                    }

                }
                else
                    msg_format("%^s ignores you.", desc);
            }
            else
            {
                if (is_pet(m_ptr))
                    msg_format("%^s slobbers on you affectionately.", desc);
                else if (is_friendly(m_ptr))
                {
                    set_pet(m_ptr);
                    msg_format("%^s is charmed!", desc);
                }
                else
                {
                    set_friendly(m_ptr);
                    msg_format("%^s suddenly becomes friendly.", desc);
                }
            }
            var_set_bool(res, TRUE);
        }
        else
        {
            msg_print("There is no monster.");
        }
        break;
    }
    default:
        default_spell(cmd, res);
        break;
    }
}
std::vector<entity_id> get_closest_hostiles(
	const const_entity_handle subject,
	const const_entity_handle subject_attitude,
	const real32 radius,
	const b2Filter filter
) {
	const auto& cosm = subject.get_cosmos();
	const auto si = cosm.get_si();

	const auto& physics = cosm.get_solvable_inferred().physics;
	const auto transform = subject.get_logic_transform();

	struct hostile_entry {
		entity_id s;
		real32 dist = 0.f;

		bool operator<(const hostile_entry& b) const {
			return dist < b.dist;
		}

		bool operator==(const hostile_entry& b) const {
			return s == b.s;
		}

		operator entity_id() const {
			return s;
		}
	};

	std::vector<hostile_entry> hostiles;

	if (subject_attitude.alive()) {
		const auto subject_attitude_transform = subject_attitude.get_logic_transform();

		physics.for_each_in_aabb(
			si,
			transform.pos - vec2(radius, radius),
			transform.pos + vec2(radius, radius),
			filter,
			[&](const b2Fixture& fix) {
				const const_entity_handle s = cosm[get_body_entity_that_owns(fix)];

				if (s != subject && s.has<components::attitude>()) {
					const auto calculated_attitude = calc_attitude(s, subject_attitude);

					if (is_hostile(calculated_attitude)) {
						const auto dist = (s.get_logic_transform().pos - subject_attitude_transform.pos).length_sq();
						
						hostile_entry new_entry;
						new_entry.s = s;
						new_entry.dist = dist;

						hostiles.push_back(new_entry);
					}
				}

				return callback_result::CONTINUE;
			}
		);
	}

	sort_range(hostiles);
	remove_duplicates_from_sorted(hostiles);

	return { hostiles.begin(), hostiles.end() };
}
static bool _necro_do_touch(int type, int dice, int sides, int base)
{
    int x, y;
    int dir = 0;
    int m_idx = 0;

    if (!_necro_check_touch()) return FALSE;

    /* For ergonomics sake, use currently targeted monster. This allows
       a macro of \e*tmaa or similar to pick an adjacent foe, while
       \emaa*t won't work, since get_rep_dir2() won't allow a target. */
    if (use_old_target && target_okay())
    {
        y = target_row;
        x = target_col;
        m_idx = cave[y][x].m_idx;
        if (m_idx)
        {
            if (m_list[m_idx].cdis > 1)
                m_idx = 0;
            else
                dir = 5; /* Hack so that fire_ball() works correctly */
        }
    }

    if (!m_idx)
    {
        if (!get_rep_dir2(&dir)) return FALSE;
        if (dir == 5) return FALSE;

        y = py + ddy[dir];
        x = px + ddx[dir];
        m_idx = cave[y][x].m_idx;

        if (!m_idx)
        {
            msg_print("There is no monster there.");
            return FALSE;
        }

    }

    if (m_idx)
    {
        int dam;
        monster_type *m_ptr = &m_list[m_idx];

        if (!is_hostile(m_ptr) &&
            !(p_ptr->stun || p_ptr->confused || p_ptr->image ||
            IS_SHERO() || !m_ptr->ml))
        {
            if (!get_check("Really hit it? "))
                return FALSE;
        }

        dam = _necro_damroll(dice, sides, base);
        on_p_hit_m(m_idx);
        touch_zap_player(m_idx);
        if (fire_ball(type, dir, dam, 0))
        {
            if (type == GF_OLD_DRAIN)
                hp_player(dam);
        }
    }
    return TRUE;
}
Esempio n. 7
0
/*!
 * @brief モンスターが敵モンスターに特殊能力を使う処理のメインルーチン /
 * Monster tries to 'cast a spell' (or breath, etc) at another monster.
 * @param m_idx 術者のモンスターID
 * @return 実際に特殊能力を使った場合TRUEを返す
 * @details
 * The player is only disturbed if able to be affected by the spell.
 */
bool monst_spell_monst(int m_idx)
{
	int y = 0, x = 0;
	int i, k, t_idx = 0;
	int thrown_spell;
	int dam = 0;
	int start;
	int plus = 1;

	byte spell[96], num = 0;

	char m_name[160];
	char t_name[160];

#ifndef JP
	char m_poss[160];
#endif

	monster_type *m_ptr = &m_list[m_idx];
	monster_type *t_ptr = NULL;

	monster_race *r_ptr = &r_info[m_ptr->r_idx];
	monster_race *tr_ptr = NULL;

	u32b f4, f5, f6;

	bool see_m = is_seen(m_ptr);
	bool maneable = player_has_los_bold(m_ptr->fy, m_ptr->fx);
	bool see_t;
	bool see_either;
	bool pet = is_pet(m_ptr);

	bool in_no_magic_dungeon = (d_info[dungeon_type].flags1 & DF1_NO_MAGIC) && dun_level
		&& (!p_ptr->inside_quest || is_fixed_quest_idx(p_ptr->inside_quest));

	bool can_use_lite_area = FALSE;
	bool can_remember;

	/* Cannot cast spells when confused */
	if (MON_CONFUSED(m_ptr)) return (FALSE);

	/* Extract the racial spell flags */
	f4 = r_ptr->flags4;
	f5 = r_ptr->a_ability_flags1;
	f6 = r_ptr->a_ability_flags2;

	/* Target is given for pet? */
	if (pet_t_m_idx && pet)
	{
		t_idx = pet_t_m_idx;
		t_ptr = &m_list[t_idx];

		/* Cancel if not projectable (for now) */
		if ((m_idx == t_idx) || !projectable(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx))
		{
			t_idx = 0;
		}
	}

	/* Is there counter attack target? */
	if (!t_idx && m_ptr->target_y)
	{
		t_idx = cave[m_ptr->target_y][m_ptr->target_x].m_idx;

		if (t_idx)
		{
			t_ptr = &m_list[t_idx];

			/* Cancel if neither enemy nor a given target */
			if ((m_idx == t_idx) ||
			    ((t_idx != pet_t_m_idx) && !are_enemies(m_ptr, t_ptr)))
			{
				t_idx = 0;
			}

			/* Allow only summoning etc.. if not projectable */
			else if (!projectable(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx))
			{
				f4 &= (RF4_INDIRECT_MASK);
				f5 &= (RF5_INDIRECT_MASK);
				f6 &= (RF6_INDIRECT_MASK);
			}
		}
	}

	/* Look for enemies normally */
	if (!t_idx)
	{
		bool success = FALSE;

		if (p_ptr->inside_battle)
		{
			start = randint1(m_max-1) + m_max;
			if (randint0(2)) plus = -1;
		}
		else start = m_max + 1;

		/* Scan thru all monsters */
		for (i = start; ((i < start + m_max) && (i > start - m_max)); i += plus)
		{
			int dummy = (i % m_max);
			if (!dummy) continue;

			t_idx = dummy;
			t_ptr = &m_list[t_idx];

			/* Skip dead monsters */
			if (!t_ptr->r_idx) continue;

			/* Monster must be 'an enemy' */
			if ((m_idx == t_idx) || !are_enemies(m_ptr, t_ptr)) continue;

			/* Monster must be projectable */
			if (!projectable(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx)) continue;

			/* Get it */
			success = TRUE;
			break;
		}

		/* No enemy found */
		if (!success) return FALSE;
	}


	/* OK -- we've got a target */
	y = t_ptr->fy;
	x = t_ptr->fx;
	tr_ptr = &r_info[t_ptr->r_idx];

	/* Forget old counter attack target */
	reset_target(m_ptr);

	/* Remove unimplemented spells */
	f6 &= ~(RF6_WORLD | RF6_TRAPS | RF6_FORGET);

	if (f4 & RF4_BR_LITE)
	{
		if (!los(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx))
			f4 &= ~(RF4_BR_LITE);
	}

	/* Remove unimplemented special moves */
	if (f6 & RF6_SPECIAL)
	{
		if ((m_ptr->r_idx != MON_ROLENTO) && (r_ptr->d_char != 'B'))
			f6 &= ~(RF6_SPECIAL);
	}

	if (f6 & RF6_DARKNESS)
	{
		bool vs_ninja = (p_ptr->pclass == CLASS_NINJA) && !is_hostile(t_ptr);

		if (vs_ninja &&
		    !(r_ptr->flags3 & (RF3_UNDEAD | RF3_HURT_LITE)) &&
		    !(r_ptr->flags7 & RF7_DARK_MASK))
			can_use_lite_area = TRUE;

		if (!(r_ptr->flags2 & RF2_STUPID))
		{
			if (d_info[dungeon_type].flags1 & DF1_DARKNESS) f6 &= ~(RF6_DARKNESS);
			else if (vs_ninja && !can_use_lite_area) f6 &= ~(RF6_DARKNESS);
		}
	}

	if (in_no_magic_dungeon && !(r_ptr->flags2 & RF2_STUPID))
	{
		f4 &= (RF4_NOMAGIC_MASK);
		f5 &= (RF5_NOMAGIC_MASK);
		f6 &= (RF6_NOMAGIC_MASK);
	}

	if (p_ptr->inside_arena || p_ptr->inside_battle)
	{
		f4 &= ~(RF4_SUMMON_MASK);
		f5 &= ~(RF5_SUMMON_MASK);
		f6 &= ~(RF6_SUMMON_MASK | RF6_TELE_LEVEL);

		if (m_ptr->r_idx == MON_ROLENTO) f6 &= ~(RF6_SPECIAL);
	}

	if (p_ptr->inside_battle && !one_in_(3))
	{
		f6 &= ~(RF6_HEAL);
	}

	if (m_idx == p_ptr->riding)
	{
		f4 &= ~(RF4_RIDING_MASK);
		f5 &= ~(RF5_RIDING_MASK);
		f6 &= ~(RF6_RIDING_MASK);
	}

	if (pet)
	{
		f4 &= ~(RF4_SHRIEK);
		f6 &= ~(RF6_DARKNESS | RF6_TRAPS);

		if (!(p_ptr->pet_extra_flags & PF_TELEPORT))
		{
			f6 &= ~(RF6_BLINK | RF6_TPORT | RF6_TELE_TO | RF6_TELE_AWAY | RF6_TELE_LEVEL);
		}

		if (!(p_ptr->pet_extra_flags & PF_ATTACK_SPELL))
		{
			f4 &= ~(RF4_ATTACK_MASK);
			f5 &= ~(RF5_ATTACK_MASK);
			f6 &= ~(RF6_ATTACK_MASK);
		}

		if (!(p_ptr->pet_extra_flags & PF_SUMMON_SPELL))
		{
			f4 &= ~(RF4_SUMMON_MASK);
			f5 &= ~(RF5_SUMMON_MASK);
			f6 &= ~(RF6_SUMMON_MASK);
		}

		/* Prevent collateral damage */
		if (!(p_ptr->pet_extra_flags & PF_BALL_SPELL) && (m_idx != p_ptr->riding))
		{
			if ((f4 & (RF4_BALL_MASK & ~(RF4_ROCKET))) ||
			    (f5 & RF5_BALL_MASK) ||
			    (f6 & RF6_BALL_MASK))
			{
				int real_y = y;
				int real_x = x;

				get_project_point(m_ptr->fy, m_ptr->fx, &real_y, &real_x, 0L);

				if (projectable(real_y, real_x, p_ptr->y, p_ptr->x))
				{
					int dist = distance(real_y, real_x, p_ptr->y, p_ptr->x);

					if (dist <= 2)
					{
						f4 &= ~(RF4_BALL_MASK & ~(RF4_ROCKET));
						f5 &= ~(RF5_BALL_MASK);
						f6 &= ~(RF6_BALL_MASK);
					}
					else if (dist <= 4)
					{
						f4 &= ~(RF4_BIG_BALL_MASK);
						f5 &= ~(RF5_BIG_BALL_MASK);
						f6 &= ~(RF6_BIG_BALL_MASK);
					}
				}
				else if (f5 & RF5_BA_LITE)
				{
					if ((distance(real_y, real_x, p_ptr->y, p_ptr->x) <= 4) && los(real_y, real_x, p_ptr->y, p_ptr->x))
						f5 &= ~(RF5_BA_LITE);
				}
			}

			if (f4 & RF4_ROCKET)
			{
				int real_y = y;
				int real_x = x;

				get_project_point(m_ptr->fy, m_ptr->fx, &real_y, &real_x, PROJECT_STOP);
				if (projectable(real_y, real_x, p_ptr->y, p_ptr->x) && (distance(real_y, real_x, p_ptr->y, p_ptr->x) <= 2))
					f4 &= ~(RF4_ROCKET);
			}

			if (((f4 & RF4_BEAM_MASK) ||
			     (f5 & RF5_BEAM_MASK) ||
			     (f6 & RF6_BEAM_MASK)) &&
			    !direct_beam(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx, m_ptr))
			{
				f4 &= ~(RF4_BEAM_MASK);
				f5 &= ~(RF5_BEAM_MASK);
				f6 &= ~(RF6_BEAM_MASK);
			}

			if ((f4 & RF4_BREATH_MASK) ||
			    (f5 & RF5_BREATH_MASK) ||
			    (f6 & RF6_BREATH_MASK))
			{
				/* Expected breath radius */
				int rad = (r_ptr->flags2 & RF2_POWERFUL) ? 3 : 2;

				if (!breath_direct(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx, rad, 0, TRUE))
				{
					f4 &= ~(RF4_BREATH_MASK);
					f5 &= ~(RF5_BREATH_MASK);
					f6 &= ~(RF6_BREATH_MASK);
				}
				else if ((f4 & RF4_BR_LITE) &&
					 !breath_direct(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx, rad, GF_LITE, TRUE))
				{
					f4 &= ~(RF4_BR_LITE);
				}
				else if ((f4 & RF4_BR_DISI) &&
					 !breath_direct(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx, rad, GF_DISINTEGRATE, TRUE))
				{
					f4 &= ~(RF4_BR_DISI);
				}
			}
		}

		/* Special moves restriction */
		if (f6 & RF6_SPECIAL)
		{
			if (m_ptr->r_idx == MON_ROLENTO)
			{
				if ((p_ptr->pet_extra_flags & (PF_ATTACK_SPELL | PF_SUMMON_SPELL)) != (PF_ATTACK_SPELL | PF_SUMMON_SPELL))
					f6 &= ~(RF6_SPECIAL);
			}
			else if (r_ptr->d_char == 'B')
			{
				if ((p_ptr->pet_extra_flags & (PF_ATTACK_SPELL | PF_TELEPORT)) != (PF_ATTACK_SPELL | PF_TELEPORT))
					f6 &= ~(RF6_SPECIAL);
			}
			else f6 &= ~(RF6_SPECIAL);
		}
	}

	/* Remove some spells if necessary */

	if (!(r_ptr->flags2 & RF2_STUPID))
	{
		/* Check for a clean bolt shot */
		if (((f4 & RF4_BOLT_MASK) ||
		     (f5 & RF5_BOLT_MASK) ||
		     (f6 & RF6_BOLT_MASK)) &&
		    !clean_shot(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx, pet))
		{
			f4 &= ~(RF4_BOLT_MASK);
			f5 &= ~(RF5_BOLT_MASK);
			f6 &= ~(RF6_BOLT_MASK);
		}

		/* Check for a possible summon */
		if (((f4 & RF4_SUMMON_MASK) ||
		     (f5 & RF5_SUMMON_MASK) ||
		     (f6 & RF6_SUMMON_MASK)) &&
		    !(summon_possible(t_ptr->fy, t_ptr->fx)))
		{
			/* Remove summoning spells */
			f4 &= ~(RF4_SUMMON_MASK);
			f5 &= ~(RF5_SUMMON_MASK);
			f6 &= ~(RF6_SUMMON_MASK);
		}

		/* Dispel magic */
		if ((f4 & RF4_DISPEL) && !dispel_check_monster(m_idx, t_idx))
		{
			/* Remove dispel spell */
			f4 &= ~(RF4_DISPEL);
		}

		/* Check for a possible raise dead */
		if ((f6 & RF6_RAISE_DEAD) && !raise_possible(m_ptr))
		{
			/* Remove raise dead spell */
			f6 &= ~(RF6_RAISE_DEAD);
		}

		/* Special moves restriction */
		if (f6 & RF6_SPECIAL)
		{
			if ((m_ptr->r_idx == MON_ROLENTO) && !summon_possible(t_ptr->fy, t_ptr->fx))
			{
				f6 &= ~(RF6_SPECIAL);
			}
		}
	}

	if (r_ptr->flags2 & RF2_SMART)
	{
		/* Hack -- allow "desperate" spells */
		if ((m_ptr->hp < m_ptr->maxhp / 10) &&
		    (randint0(100) < 50))
		{
			/* Require intelligent spells */
			f4 &= (RF4_INT_MASK);
			f5 &= (RF5_INT_MASK);
			f6 &= (RF6_INT_MASK);
		}

		/* Hack -- decline "teleport level" in some case */
		if ((f6 & RF6_TELE_LEVEL) && TELE_LEVEL_IS_INEFF((t_idx == p_ptr->riding) ? 0 : t_idx))
		{
			f6 &= ~(RF6_TELE_LEVEL);
		}
	}

	/* No spells left */
	if (!f4 && !f5 && !f6) return FALSE;

	/* Extract the "inate" spells */
	for (k = 0; k < 32; k++)
	{
		if (f4 & (1L << k)) spell[num++] = k + RF4_SPELL_START;
	}

	/* Extract the "normal" spells */
	for (k = 0; k < 32; k++)
	{
        if (f5 & (1L << k)) spell[num++] = k + RF5_SPELL_START;
	}

	/* Extract the "bizarre" spells */
	for (k = 0; k < 32; k++)
	{
        if (f6 & (1L << k)) spell[num++] = k + RF6_SPELL_START;
	}

	/* No spells left */
	if (!num) return (FALSE);

	/* Stop if player is dead or gone */
	if (!p_ptr->playing || p_ptr->is_dead) return (FALSE);

	/* Handle "leaving" */
	if (p_ptr->leaving) return (FALSE);

	/* Get the monster name (or "it") */
	monster_desc(m_name, m_ptr, 0x00);

#ifndef JP
	/* Get the monster possessive ("his"/"her"/"its") */
	monster_desc(m_poss, m_ptr, MD_PRON_VISIBLE | MD_POSSESSIVE);
#endif

	/* Get the target's name (or "it") */
	monster_desc(t_name, t_ptr, 0x00);

	/* Choose a spell to cast */
	thrown_spell = spell[randint0(num)];

	see_t = is_seen(t_ptr);
	see_either = (see_m || see_t);

	if (p_ptr->riding && (m_idx == p_ptr->riding)) disturb(1, 1);

	/* Check for spell failure (inate attacks never fail) */
	if (!spell_is_inate(thrown_spell) && (in_no_magic_dungeon || (MON_STUNNED(m_ptr) && one_in_(2))))
	{
		disturb(1, 1);
		/* Message */
		if (see_m) msg_format(_("%^sは呪文を唱えようとしたが失敗した。", 
			                    "%^s tries to cast a spell, but fails."), m_name);

		return (TRUE);
	}

	/* Hex: Anti Magic Barrier */
	if (!spell_is_inate(thrown_spell) && magic_barrier(m_idx))
	{
		if (see_m) msg_format(_("反魔法バリアが%^sの呪文をかき消した。", 
			                    "Anti magic barrier cancels the spell which %^s casts."), m_name);
		return (TRUE);
	}

	can_remember = is_original_ap_and_seen(m_ptr);

    dam = monspell_to_monster(thrown_spell, y, x, m_idx, t_idx);
    if (dam < 0)return FALSE;

	if (m_ptr->ml && maneable && !world_monster && !p_ptr->blind && (p_ptr->pclass == CLASS_IMITATOR))
	{
		if (thrown_spell != 167) /* Not RF6_SPECIAL */
		{
			if (p_ptr->mane_num == MAX_MANE)
			{
				p_ptr->mane_num--;
				for (i = 0; i < p_ptr->mane_num - 1; i++)
				{
					p_ptr->mane_spell[i] = p_ptr->mane_spell[i+1];
					p_ptr->mane_dam[i] = p_ptr->mane_dam[i+1];
				}
			}
			p_ptr->mane_spell[p_ptr->mane_num] = thrown_spell - RF4_SPELL_START;
			p_ptr->mane_dam[p_ptr->mane_num] = dam;
			p_ptr->mane_num++;
			new_mane = TRUE;

			p_ptr->redraw |= (PR_IMITATION);
		}
	}

	/* Remember what the monster did, if we saw it */
	if (can_remember)
	{
		/* Inate spell */
        if (thrown_spell < RF4_SPELL_START + RF4_SPELL_SIZE)
		{
            r_ptr->r_flags4 |= (1L << (thrown_spell - RF4_SPELL_START));
			if (r_ptr->r_cast_spell < MAX_UCHAR) r_ptr->r_cast_spell++;
		}

		/* Bolt or Ball */
        else if (thrown_spell < RF5_SPELL_START + RF5_SPELL_SIZE)
		{
            r_ptr->r_flags5 |= (1L << (thrown_spell - RF5_SPELL_START));
			if (r_ptr->r_cast_spell < MAX_UCHAR) r_ptr->r_cast_spell++;
		}

		/* Special spell */
        else if (thrown_spell < RF6_SPELL_START + RF6_SPELL_SIZE)
		{
            r_ptr->r_flags6 |= (1L << (thrown_spell - RF6_SPELL_START));
			if (r_ptr->r_cast_spell < MAX_UCHAR) r_ptr->r_cast_spell++;
		}
	}

	/* Always take note of monsters that kill you */
	if (p_ptr->is_dead && (r_ptr->r_deaths < MAX_SHORT) && !p_ptr->inside_arena)
	{
		r_ptr->r_deaths++; /* Ignore appearance difference */
	}

	/* A spell was cast */
	return TRUE;
}