//===== rAthena Documentation ================================
//= rAthena Skill Requirement Reference
//===== By: ==================================================
//= rAthena Dev Team
//===== Last Updated: ========================================
//= 20140831
//===== Description: =========================================
//= Explanation of the skill_require_db.txt file and structure.
//============================================================

Structure:
SkillID,HPCost,MaxHPTrigger,SPCost,HPRateCost,SPRateCost,ZenyCost,RequiredWeapons,RequiredAmmoTypes,RequiredAmmoAmount,RequiredState,RequiredStatuses,SpiritSphereCost,RequiredItemID1,RequiredItemAmount1,RequiredItemID2,RequiredItemAmount2,RequiredItemID3,RequiredItemAmount3,RequiredItemID4,RequiredItemAmount4,RequiredItemID5,RequiredItemAmount5,RequiredItemID6,RequiredItemAmount6,RequiredItemID7,RequiredItemAmount7,RequiredItemID8,RequiredItemAmount8,RequiredItemID9,RequiredItemAmount9,RequiredItemID10,RequiredItemAmount10,RequiredEquipment

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SkillID: The ID of the skill.
         See 'db\(pre-)re\skill_db.txt' for more details.

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HPCost:	Amount of HP needed to use the skill.

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MaxHPTrigger: Player's HP must be below this % of Max HP in order to use the skill.

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SPCost: Amount of SP needed to use the skill.

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HPRateCost: If more than 0, the percentage of the player's current HP.
            If less than 0, the percentage of the player's Max HP.

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SPRateCost: If more than 0, the percentage of the player's current SP.
            If less than 0, the percentage of the player's Max SP.

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ZenyCost: Amount of Zeny needed to use the skill.

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RequiredWeapons: Weapon type needed to use the skill.
	0: bare fist
	1: Daggers
	2: One-handed swords
	3: Two-handed swords
	4: One-handed spears
	5: Two-handed spears
	6: One-handed axes
	7: Two-handed axes
	8: Maces
	9: Unused
	10: Staves
	11: Bows
	12: Knuckles
	13: Musical Instruments
	14: Whips
	15: Books
	16: Katars
	17: Revolvers
	18: Rifles
	19: Gatling guns
	20: Shotguns
	21: Grenade launchers
	22: Fuuma Shurikens
	23: Two-handed staves
	24: Max Type
	25: Dual-wield Daggers
	26: Dual-wield Swords
	27: Dual-wield Axes
	28: Dagger + Sword
	29: Dagger + Axe
	30: Sword + Axe
	
Up to 30 ':'-separated values can be used, e.g.
    type1:type2:type3

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RequiredAmmoTypes: Ammo type needed to use the skill.
	1: Arrows
	2: Throwable daggers
	3: Bullets
	4: Shells
	5: Grenades
	6: Shuriken
	7: Kunai
	8: Cannonballs
	9: Throwable Items (Sling Item)

Up to 9 ':'-separated values can be used, e.g.
    type1:type2:type3

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RequiredAmmoAmount: Amount of ammo needed to use the skill.

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RequiredState: The active 'State' needed to use the skill.

none = Nothing special.
hidden = Requires hidden status by using Hiding, Cloaking, or Chasewalk.
riding = Requires the player to ride either a Peco or a Dragon.
falcon = Requires a Falcon.
cart = Requires a Pushcart.
       For renewal, this state can be replaced by SC_PUSH_CART in 'RequiredStatuses' field.
shield = Requires a shield equipped.
recover_weight_rate = Requires to be less than 50% weight.
move_enable = Requires to be able to move.
water = Requires to be standing on a water cell.
dragon = Requires to ride a Dragon.
warg = Requires a Warg.
ridingwarg = Requires to ride a Warg.
mado = Requires to have an active Mado.
elementalspirit = Requires to have an Elemental Spirit summoned.
peco = Requires riding a Peco.

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RequiredStatuses: The active statuses needed to use the skill.

Up to 3 ':'-separated values can be used, e.g.
    SC_STATUS1:SC_STATUS2:SC_STATUS3

See MAX_SKILL_STATUS_REQUIRE in 'src/map/skill.h' to modify the max number
of possible values, and 'db/const.txt' for a list of status constants.

Use any number or SC_ALL to disable status requirements.

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SpiritSphereCost: Amount of Spirit Sphere needed to use the skill.

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RequiredItemID1..10: Items to be consumed when the skill is used (max 10).

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RequiredItemAmount1..10: Amount of each item consumed when the skill is used.
                         If 0, the item is required to be in the inventory but won't be consumed.

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RequiredEquipment: Specific equipment IDs needed to use the skill.

Up to 10 ':'-separated values can be used, e.g.
    item1:item2:item3

See MAX_SKILL_EQUIP_REQUIRE in 'src/map/skill.h' to modify the max number
of possible values.

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NOTE: On some fields, the ':' delimiter means for each skill level, but there
      are some level dependent checks.  See 'skill_get_requirement()' in
      'src/map/skill.c'.