--虚撃龍ゼロガイギアス
--Void Strike Dragon Zerogaigias
--scripted by pyrQ
local s,id=GetID()
function s.initial_effect(c)
	--Fusion Material
	c:EnableReviveLimit()
	Fusion.AddProcMix(c,true,true,160409001,160409002)
	--Change original ATK to 0
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1,0,EFFECT_COUNT_CODE_SINGLE)
	e1:SetCost(s.cost)
	e1:SetTarget(s.atktg)
	e1:SetOperation(s.atkop)
	c:RegisterEffect(e1)
	--Change targeted monster's battle position
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DESTROY+CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1,0,EFFECT_COUNT_CODE_SINGLE)
	e2:SetCost(s.cost)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDiscardDeckAsCost(tp,1) end
end
function s.atkfilter(c)
	return c:IsFaceup() and c:GetBaseAttack()>0
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(aux.FilterMaximumSideFunctionEx(s.atkfilter),tp,0,LOCATION_MZONE,1,nil) end
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	--Requirement
	if Duel.DiscardDeck(tp,1,REASON_COST)==0 then return end
	--Effect
	local c=e:GetHandler()
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATKDEF)
	local g=Duel.SelectMatchingCard(tp,aux.FilterMaximumSideFunctionEx(s.atkfilter),tp,0,LOCATION_MZONE,1,3,nil)
	if #g==0 then return end
	Duel.HintSelection(g)
	for tc in g:Iter() do
		--Original ATK becomes 0
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
		e1:SetRange(LOCATION_MZONE)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		e1:SetCode(EFFECT_SET_BASE_ATTACK)
		e1:SetValue(0)
		tc:RegisterEffect(e1)
	end
	--Can make up to 2 attacks on monsters
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCode(EFFECT_EXTRA_ATTACK_MONSTER)
	e2:SetValue(1)
	e2:SetReset(RESETS_STANDARD_DISABLE_PHASE_END)
	c:RegisterEffect(e2)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	local dg=Duel.GetMatchingGroup(Card.IsSpellTrap,tp,0,LOCATION_ONFIELD,nil)
	if chk==0 then return #dg>0 end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,dg,1,0,0)
end
function s.spfilter(c,e,tp)
	return c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	--Requirement
	if Duel.DiscardDeck(tp,1,REASON_COST)==0 then return end
	--Effect
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local dg=Duel.SelectMatchingCard(tp,Card.IsSpellTrap,tp,0,LOCATION_ONFIELD,1,1,nil)
	if #dg==0 then return end
	Duel.HintSelection(dg)
	if Duel.Destroy(dg,REASON_EFFECT)>0 and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp)
		and Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and Duel.SelectYesNo(tp,aux.Stringid(id,2)) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local sg=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
		if #sg>0 then
			Duel.BreakEffect()
			Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP)
		end
	end
end