--created & coded by Lyris, art from Metal Gear Rising: Revengance's Raiden
--剣主零マン
local s,id,o=GetID()
function s.initial_effect(c)
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_SINGLE)
	e0:SetCode(EFFECT_PIERCE)
	c:RegisterEffect(e0)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetValue(s.val)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	e2:SetOperation(s.posop)
	c:RegisterEffect(e2)
	if not s.global_check then
		local e3=Effect.CreateEffect(c)
		e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		e3:SetCode(EVENT_CHANGE_POS)
		e3:SetCondition(function(e,tp,eg,ep,ev,re,r,rp) eg:IsExists(s.pfilter,1,nil) end)
		e3:SetOperation(function(e,tp) Duel.RegisterFlagEffect(0,id,RESET_PHASE+PHASE_END,0,1) end)
		Duel.RegisterEffect(e3,0)
	end
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_QUICK_O)
	e4:SetCode(EVENT_FREE_CHAIN)
	e4:SetCountLimit(1,id)
	e4:SetRange(LOCATION_HAND)
	e4:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e4:SetHintTiming(0,TIMINGS_CHECK_MONSTER+TIMING_MAIN_END)
	e4:SetCondition(function() local ph=Duel.GetCurrentPhase() return Duel.GetFlagEffect(0,id)>0 and (ph==PHASE_MAIN1 or ph==PHASE_MAIN2) end)
	e4:SetTarget(s.sptg)
	e4:SetOperation(s.spop)
	c:RegisterEffect(e4)
end
function s.pfilter(c)
	if c:IsAttackPos() then return c:IsPreviousPosition(POS_DEFENSE)
	else return c:IsPreviousPosition(POS_ATTACK) end
end
function s.atkfilter(c)
	return c:IsFaceup() and c:IsSetCard(0xbb2)
end
function s.val(e,c)
	return Duel.GetMatchingGroupCount(s.atkfilter,e:GetHandlerPlayer(),LOCATION_MZONE,0,c)*100
end
function s.posop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_POSCHANGE)
	local g=Duel.SelectMatchingCard(tp,Card.IsAttackPos,tp,0,LOCATION_MZONE,1,1,nil)
	Duel.HintSelection(g)
	local tc=g:GetFirst()
	if tc and Duel.ChangePosition(tc,POS_FACEUP_DEFENSE)<1 then
		Duel.NegateRelatedChain(tc,RESET_TURN_SET)
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetCode(EFFECT_DISABLE)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD)
		tc:RegisterEffect(e1)
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_SINGLE)
		e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e2:SetCode(EFFECT_DISABLE_EFFECT)
		e2:SetValue(RESET_TURN_SET)
		e2:SetReset(RESET_EVENT+RESETS_STANDARD)
		tc:RegisterEffect(e2)
		local e3=Effect.CreateEffect(c)
		e3:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e3:SetType(EFFECT_TYPE_SINGLE)
		e3:SetCode(EFFECT_SET_ATTACK_FINAL)
		e3:SetReset(RESET_EVENT+RESETS_STANDARD)
		e3:SetValue(math.ceil(tc:GetAttack()/2))
		tc:RegisterEffect(e3)
	end
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_ATTACK) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) then return end
	Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP_ATTACK)
end