modifier_ability_power_shikieiki = class({})

local public = modifier_ability_power_shikieiki

local m_modifier_funcs=
{
	MODIFIER_PROPERTY_OVERRIDE_ABILITY_SPECIAL,
	MODIFIER_PROPERTY_OVERRIDE_ABILITY_SPECIAL_VALUE,	
}

local power_bonus = {
	["thtd_shikieiki_02"] = {  
		[1] = {			
			["power_bonus"] = 2,
		},
		[2] = {			
			["power_bonus"] = 4,
		},
		[3] = {		
			["power_bonus"] = 8,
		},				
	},
	["thtd_shikieiki_04"] = {  
		[1] = {
			["power_damage"] = 5,
		},
		[2] = {
			["power_damage"] = 10,
		},
		[3] = {
			["power_damage"] = 15,
		},	
		[4] = {
			["power_damage"] = 440,
		},	
		[5] = {
			["power_damage"] = 440,			
		},		
	},
}

local power_999_crit = 700
local power_999_chance = 70

function public:IsHidden()
	return true
end

function public:IsPermanent()
	return true
end

function public:RemoveOnDeath()
	return false
end

function public:IsDebuff()
	return false
end

function public:IsPurgable()
	return false
end

function public:DeclareFunctions()
	return m_modifier_funcs
end

function public:OnStackCountChanged( iStackCount )
	-- 双端触发，iStackCount为改变前的层数	
	if not IsServer() then return end

	if self:GetStackCount() >= 5 then 
		local caster = self:GetParent()
		caster:THTD_AddCritChance(power_999_chance, "shikieiki_power_999_buff")
		caster:THTD_AddCritDamage(power_999_crit, "shikieiki_power_999_buff")
	end	
end

function public:OnDestroy(kv)
	if not IsServer() then return end	
	
	local caster = self:GetParent()
	caster:THTD_AddCritChance("shikieiki_power_999_buff")
	caster:THTD_AddCritDamage("shikieiki_power_999_buff")
end

function public:GetModifierOverrideAbilitySpecial( params )
	if self:GetParent() == nil or params.ability == nil then
		return 0
	end
		
	local abilityName = params.ability:GetAbilityName() 
	local level = self:GetStackCount()
	local valueName = params.ability_special_value
	
	if power_bonus[abilityName] == nil then
		return 0
	end

	if power_bonus[abilityName][level] == nil then
		level = 3
	end
	if power_bonus[abilityName][level] == nil then
		return 0
	end

	if power_bonus[abilityName][level][valueName] == nil then
		return 0
	end

	return 1
end

function public:GetModifierOverrideAbilitySpecialValue( params )
	local abilityName = params.ability:GetAbilityName() 
	local level = self:GetStackCount()
	local valueName = params.ability_special_value
	local specialLevel = params.ability_special_level

	if power_bonus[abilityName][level] == nil then
		level = 3
	end

	return params.ability:GetLevelSpecialValueNoOverride(valueName, specialLevel) + power_bonus[abilityName][level][valueName]	
end