#include "realm/realm-death.h"
#include "cmd-action/cmd-spell.h"
#include "core/hp-mp-processor.h"
#include "effect/effect-characteristics.h"
#include "io/targeting.h"
#include "player/avatar.h"
#include "player/digestion-processor.h"
#include "player/player-class.h"
#include "player/player-damage.h"
#include "player/player-race.h"
#include "spell-kind/spells-charm.h"
#include "spell-kind/spells-detection.h"
#include "spell-kind/spells-genocide.h"
#include "spell-kind/spells-launcher.h"
#include "spell-kind/spells-neighbor.h"
#include "spell-kind/spells-perception.h"
#include "spell-kind/spells-sight.h"
#include "spell-kind/spells-specific-bolt.h"
#include "spell/process-effect.h"
#include "spell/spell-types.h"
#include "spell/spells-diceroll.h"
#include "spell/spells-object.h"
#include "spell/spells-status.h"
#include "spell/spells-summon.h"
#include "status/buff-setter.h"
#include "status/experience.h"
#include "status/shape-changer.h"
#include "status/element-resistance.h"

/*!
* @brief 暗黒領域魔法の各処理を行う
* @param caster_ptr プレーヤーへの参照ポインタ
* @param spell 魔法ID
* @param mode 処理内容 (SPELL_NAME / SPELL_DESC / SPELL_INFO / SPELL_CAST)
* @return SPELL_NAME / SPELL_DESC / SPELL_INFO 時には文字列ポインタを返す。SPELL_CAST時はNULL文字列を返す。
*/
concptr do_death_spell(player_type *caster_ptr, SPELL_IDX spell, spell_type mode)
{
	bool name = (mode == SPELL_NAME) ? TRUE : FALSE;
	bool desc = (mode == SPELL_DESC) ? TRUE : FALSE;
	bool info = (mode == SPELL_INFO) ? TRUE : FALSE;
	bool cast = (mode == SPELL_CAST) ? TRUE : FALSE;

	DIRECTION dir;
	PLAYER_LEVEL plev = caster_ptr->lev;

	switch (spell)
	{
	case 0:
		if (name) return _("無生命感知", "Detect Unlife");
		if (desc) return _("近くの生命のないモンスターを感知する。", "Detects all nonliving monsters in your vicinity.");

		{
			POSITION rad = DETECT_RAD_DEFAULT;

			if (info) return info_radius(rad);

			if (cast)
			{
				detect_monsters_nonliving(caster_ptr, rad);
			}
		}
		break;

	case 1:
		if (name) return _("呪殺弾", "Malediction");
		if (desc) return _("ごく小さな邪悪な力を持つボールを放つ。善良なモンスターには大きなダメージを与える。",
			"Fires a tiny ball of evil power which hurts good monsters greatly.");

		{
			DICE_NUMBER dice = 3 + (plev - 1) / 5;
			DICE_SID sides = 4;
			POSITION rad = 0;

			if (info) return info_damage(dice, sides, 0);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				/*
				* A radius-0 ball may (1) be aimed at
				* objects etc., and will affect them;
				* (2) may be aimed at ANY visible
				* monster, unlike a 'bolt' which must
				* travel to the monster.
				*/

				fire_ball(caster_ptr, GF_HELL_FIRE, dir, damroll(dice, sides), rad);

				if (one_in_(5))
				{
					/* Special effect first */
					int effect = randint1(1000);

					if (effect == 666)
						fire_ball_hide(caster_ptr, GF_DEATH_RAY, dir, plev * 200, 0);
					else if (effect < 500)
						fire_ball_hide(caster_ptr, GF_TURN_ALL, dir, plev, 0);
					else if (effect < 800)
						fire_ball_hide(caster_ptr, GF_OLD_CONF, dir, plev, 0);
					else
						fire_ball_hide(caster_ptr, GF_STUN, dir, plev, 0);
				}
			}
		}
		break;

	case 2:
		if (name) return _("邪悪感知", "Detect Evil");
		if (desc) return _("近くの邪悪なモンスターを感知する。", "Detects all evil monsters in your vicinity.");

		{
			POSITION rad = DETECT_RAD_DEFAULT;

			if (info) return info_radius(rad);

			if (cast)
			{
				detect_monsters_evil(caster_ptr, rad);
			}
		}
		break;

	case 3:
		if (name) return _("悪臭雲", "Stinking Cloud");
		if (desc) return _("毒の球を放つ。", "Fires a ball of poison.");

		{
			HIT_POINT dam = 10 + plev / 2;
			POSITION rad = 2;

			if (info) return info_damage(0, 0, dam);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				fire_ball(caster_ptr, GF_POIS, dir, dam, rad);
			}
		}
		break;

	case 4:
		if (name) return _("黒い眠り", "Black Sleep");
		if (desc) return _("1体のモンスターを眠らせる。抵抗されると無効。", "Attempts to put a monster to sleep.");

		{
			int power = plev;

			if (info) return info_power(power);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				sleep_monster(caster_ptr, dir, plev);
			}
		}
		break;

	case 5:
		if (name) return _("耐毒", "Resist Poison");
		if (desc) return _("一定時間、毒への耐性を得る。装備による耐性に累積する。",
			"Gives resistance to poison. This resistance can be added to that from equipment for more powerful resistance.");

		{
			int base = 20;

			if (info) return info_duration(base, base);

			if (cast)
			{
				set_oppose_pois(caster_ptr, randint1(base) + base, FALSE);
			}
		}
		break;

	case 6:
		if (name) return _("恐慌", "Horrify");
		if (desc) return _("モンスター1体を恐怖させ、朦朧させる。抵抗されると無効。", "Attempts to scare and stun a monster.");

		{
			int power = plev;

			if (info) return info_power(power);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				fear_monster(caster_ptr, dir, plev);
				stun_monster(caster_ptr, dir, plev);
			}
		}
		break;

	case 7:
		if (name) return _("アンデッド従属", "Enslave Undead");
		if (desc) return _("アンデッド1体を魅了する。抵抗されると無効。", "Attempts to charm an undead monster.");

		{
			int power = plev;

			if (info) return info_power(power);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				control_one_undead(caster_ptr, dir, plev);
			}
		}
		break;

	case 8:
		if (name) return _("エントロピーの球", "Orb of Entropy");
		if (desc) return _("生命のある者のHPと最大HP双方にダメージを与える効果のある球を放つ。", "Fires a ball which damages to both HP and MaxHP of living monsters.");

		{
			DICE_NUMBER dice = 3;
			DICE_SID sides = 6;
			POSITION rad = (plev < 30) ? 2 : 3;
			int base;

			if (IS_WIZARD_CLASS(caster_ptr))
				base = plev + plev / 2;
			else
				base = plev + plev / 4;


			if (info) return info_damage(dice, sides, base);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				fire_ball(caster_ptr, GF_HYPODYNAMIA, dir, damroll(dice, sides) + base, rad);
			}
		}
		break;

	case 9:
		if (name) return _("地獄の矢", "Nether Bolt");
		if (desc) return _("地獄のボルトもしくはビームを放つ。", "Fires a bolt or beam of nether.");

		{
			DICE_NUMBER dice = 8 + (plev - 5) / 4;
			DICE_SID sides = 8;

			if (info) return info_damage(dice, sides, 0);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				fire_bolt_or_beam(caster_ptr, beam_chance(caster_ptr), GF_NETHER, dir, damroll(dice, sides));
			}
		}
		break;

	case 10:
		if (name) return _("殺戮雲", "Cloud kill");
		if (desc) return _("自分を中心とした毒の球を発生させる。", "Generates a ball of poison centered on you.");

		{
			HIT_POINT dam = (30 + plev) * 2;
			POSITION rad = plev / 10 + 2;

			if (info) return info_damage(0, 0, dam / 2);

			if (cast)
			{
				project(caster_ptr, 0, rad, caster_ptr->y, caster_ptr->x, dam, GF_POIS, PROJECT_KILL | PROJECT_ITEM, -1);
			}
		}
		break;

	case 11:
		if (name) return _("モンスター消滅", "Genocide One");
		if (desc) return _("モンスター1体を消し去る。経験値やアイテムは手に入らない。抵抗されると無効。", "Attempts to eradicate one monster.");

		{
			int power = plev + 50;

			if (info) return info_power(power);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				fire_ball_hide(caster_ptr, GF_GENOCIDE, dir, power, 0);
			}
		}
		break;

	case 12:
		if (name) return _("毒の刃", "Poison Branding");
		if (desc) return _("武器に毒の属性をつける。", "Makes current weapon poison branded.");

		{
			if (cast)
			{
				brand_weapon(caster_ptr, 3);
			}
		}
		break;

	case 13:
		if (name) return _("吸血の矢", "Vampiric Bolt");
		if (desc) return _("ボルトによりモンスター1体から生命力を吸いとる。吸いとった生命力によって満腹度が上がる。",
			"Fires a bolt which transfers HP from a monster to you. You will also gain nutritional sustenance from this.");

		{
			DICE_NUMBER dice = 1;
			DICE_SID sides = plev * 2;
			int base = plev * 2;

			if (info) return info_damage(dice, sides, base);

			if (cast)
			{
				HIT_POINT dam = base + damroll(dice, sides);

				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				if (hypodynamic_bolt(caster_ptr, dir, dam))
				{
					chg_virtue(caster_ptr, V_SACRIFICE, -1);
					chg_virtue(caster_ptr, V_VITALITY, -1);

					hp_player(caster_ptr, dam);

					/*
					* Gain nutritional sustenance:
					* 150/hp drained
					*
					* A Food ration gives 5000
					* food points (by contrast)
					* Don't ever get more than
					* "Full" this way But if we
					* ARE Gorged, it won't cure
					* us
					*/
					dam = caster_ptr->food + MIN(5000, 100 * dam);

					/* Not gorged already */
					if (caster_ptr->food < PY_FOOD_MAX)
						set_food(caster_ptr, dam >= PY_FOOD_MAX ? PY_FOOD_MAX - 1 : dam);
				}
			}
		}
		break;

	case 14:
		if (name) return _("反魂の術", "Animate dead");
		if (desc) return _("周囲の死体や骨を生き返す。", "Resurrects nearby corpse and skeletons. And makes these your pets.");

		{
			if (cast)
			{
				animate_dead(caster_ptr, 0, caster_ptr->y, caster_ptr->x);
			}
		}
		break;

	case 15:
		if (name) return _("抹殺", "Genocide");
		if (desc) return _("指定した文字のモンスターを現在の階から消し去る。抵抗されると無効。",
			"Eliminates an entire class of monster, exhausting you. Powerful or unique monsters may resist.");

		{
			int power = plev + 50;

			if (info) return info_power(power);

			if (cast)
			{
				symbol_genocide(caster_ptr, power, TRUE);
			}
		}
		break;

	case 16:
		if (name) return _("狂戦士化", "Berserk");
		if (desc) return _("狂戦士化し、恐怖を除去する。", "Gives a bonus to hit and HP, immunity to fear for a while. But decreases AC.");

		{
			int base = 25;

			if (info) return info_duration(base, base);

			if (cast)
			{
				(void)berserk(caster_ptr, base + randint1(base));
			}
		}
		break;

	case 17:
		if (name) return _("悪霊召喚", "Invoke Spirits");
		if (desc) return _("ランダムで様々な効果が起こる。", "Causes random effects.");

		{
			if (info) return KWD_RANDOM;

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				cast_invoke_spirits(caster_ptr, dir);
			}
		}
		break;

	case 18:
		if (name) return _("暗黒の矢", "Dark Bolt");
		if (desc) return _("暗黒のボルトもしくはビームを放つ。", "Fires a bolt or beam of darkness.");

		{
			DICE_NUMBER dice = 4 + (plev - 5) / 4;
			DICE_SID sides = 8;

			if (info) return info_damage(dice, sides, 0);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				fire_bolt_or_beam(caster_ptr, beam_chance(caster_ptr), GF_DARK, dir, damroll(dice, sides));
			}
		}
		break;

	case 19:
		if (name) return _("狂乱戦士", "Battle Frenzy");
		if (desc) return _("狂戦士化し、恐怖を除去し、加速する。",
			"Gives another bonus to hit and HP, immunity to fear for a while. Hastes you. But decreases AC.");

		{
			int b_base = 25;
			int sp_base = plev / 2;
			int sp_sides = 20 + plev / 2;

			if (info) return info_duration(b_base, b_base);

			if (cast)
			{
				(void)berserk(caster_ptr, b_base + randint1(b_base));
				set_fast(caster_ptr, randint1(sp_sides) + sp_base, FALSE);
			}
		}
		break;

	case 20:
		if (name) return _("吸血の刃", "Vampiric Branding");
		if (desc) return _("武器に吸血の属性をつける。", "Makes current weapon Vampiric.");

		{
			if (cast)
			{
				brand_weapon(caster_ptr, 4);
			}
		}
		break;

	case 21:
		if (name) return _("吸血の連矢", "Vampiric Bolts");
		if (desc) return _("3連射のボルトによりモンスター1体から生命力を吸いとる。吸いとった生命力によって体力が回復する。",
			"Fires 3 bolts. Each of the bolts absorbs some HP from a monster and gives them to you.");
		{
			HIT_POINT dam = 100;

			if (info) return format("%s3*%d", KWD_DAM, dam);

			if (cast)
			{
				int i;

				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				chg_virtue(caster_ptr, V_SACRIFICE, -1);
				chg_virtue(caster_ptr, V_VITALITY, -1);

				for (i = 0; i < 3; i++)
				{
					if (hypodynamic_bolt(caster_ptr, dir, dam))
						hp_player(caster_ptr, dam);
				}
			}
		}
		break;

	case 22:
		if (name) return _("死の言魂", "Nether Wave");
		if (desc) return _("視界内の生命のあるモンスターにダメージを与える。", "Damages all living monsters in sight.");

		{
			DICE_SID sides = plev * 3;

			if (info) return info_damage(1, sides, 0);

			if (cast)
			{
				dispel_living(caster_ptr, randint1(sides));
			}
		}
		break;

	case 23:
		if (name) return _("暗黒の嵐", "Darkness Storm");
		if (desc) return _("巨大な暗黒の球を放つ。", "Fires a huge ball of darkness.");

		{
			HIT_POINT dam = 100 + plev * 2;
			POSITION rad = 4;

			if (info) return info_damage(0, 0, dam);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				fire_ball(caster_ptr, GF_DARK, dir, dam, rad);
			}
		}
		break;

	case 24:
		if (name) return _("死の光線", "Death Ray");
		if (desc) return _("死の光線を放つ。", "Fires a beam of death.");

		{
			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				death_ray(caster_ptr, dir, plev);
			}
		}
		break;

	case 25:
		if (name) return _("死者召喚", "Raise the Dead");
		if (desc) return _("1体のアンデッドを召喚する。", "Summons an undead monster.");
		if (cast) cast_summon_undead(caster_ptr, (plev * 3) / 2);
		break;

	case 26:
		if (name) return _("死者の秘伝", "Secrets of the Dead");
		if (desc) return _("アイテムを1つ識別する。レベルが高いとアイテムの能力を完全に知ることができる。",
			"Identifies or, at higher levels, *identifies* an item.");

		{
			if (cast)
			{
				if (randint1(50) > plev)
				{
					if (!ident_spell(caster_ptr, FALSE, 0)) return NULL;
				}
				else
				{
					if (!identify_fully(caster_ptr, FALSE, 0)) return NULL;
				}
			}
		}
		break;

	case 27:
		if (name) return _("吸血鬼変化", "Polymorph Vampire");
		if (desc) return _("一定時間、吸血鬼に変化する。変化している間は本来の種族の能力を失い、代わりに吸血鬼としての能力を得る。",
			"Causes you to mimic a vampire for a while. You lose the abilities of your original race and get the abilities of a vampire for that time.");

		{
			int base = 10 + plev / 2;

			if (info) return info_duration(base, base);

			if (cast)
			{
				set_mimic(caster_ptr, base + randint1(base), MIMIC_VAMPIRE, FALSE);
			}
		}
		break;

	case 28:
		if (name) return _("経験値復活", "Restore Life");
		if (desc) return _("失った経験値を回復する。", "Restores lost experience.");

		{
			if (cast)
			{
				restore_level(caster_ptr);
			}
		}
		break;

	case 29:
		if (name) return _("周辺抹殺", "Mass Genocide");
		if (desc) return _("自分の周囲にいるモンスターを現在の階から消し去る。抵抗されると無効。",
			"Eliminates all nearby monsters, exhausting you. Powerful or unique monsters may be able to resist.");

		{
			int power = plev + 50;

			if (info) return info_power(power);

			if (cast)
			{
				mass_genocide(caster_ptr, power, TRUE);
			}
		}
		break;

	case 30:
		if (name) return _("地獄の劫火", "Hellfire");
		if (desc) return _("邪悪な力を持つ宝珠を放つ。善良なモンスターには大きなダメージを与える。",
			"Fires a powerful ball of evil power. Hurts good monsters greatly.");

		{
			HIT_POINT dam = 666;
			POSITION rad = 3;

			if (info) return info_damage(0, 0, dam);

			if (cast)
			{
				if (!get_aim_dir(caster_ptr, &dir)) return NULL;

				fire_ball(caster_ptr, GF_HELL_FIRE, dir, dam, rad);
				take_hit(caster_ptr, DAMAGE_USELIFE, 20 + randint1(30), _("地獄の劫火の呪文を唱えた疲労", "the strain of casting Hellfire"), -1);
			}
		}
		break;

	case 31:
		if (name) return _("幽体化", "Wraithform");
		if (desc) return _("一定時間、壁を通り抜けることができ受けるダメージが軽減される幽体の状態に変身する。",
			"Causes you to be ghost-like for a while. That reduces the damage you take and allows you to pass through walls.");

		{
			int base = plev / 2;

			if (info) return info_duration(base, base);

			if (cast)
			{
				set_wraith_form(caster_ptr, randint1(base) + base, FALSE);
			}
		}
		break;
	}

	return "";
}
