--侵略的外来種－Ｉ．Ａ．Ｓ
--I.A.S. -Invasive Alien Species-
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	--Cannot be destroyed by battle or effects while your opponent has a face-up card in the Field Zone
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.fieldcon)
	e1:SetValue(1)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	c:RegisterEffect(e2)
	--Destroy 1 monster your opponent controls if your opponent has a face-up card in the Field Zone
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,0))
	e3:SetCategory(CATEGORY_DESTROY+CATEGORY_ATKCHANGE)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCountLimit(1,id)
	e3:SetCondition(s.fieldcon)
	e3:SetTarget(s.destg)
	e3:SetOperation(s.desop)
	c:RegisterEffect(e3)
	--Special Summon itself from the GY if your opponent has a face-up card in the Field Zone
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,1))
	e4:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e4:SetType(EFFECT_TYPE_IGNITION)
	e4:SetRange(LOCATION_GRAVE)
	e4:SetCountLimit(1,{id,1})
	e4:SetCondition(s.fieldcon)
	e4:SetTarget(s.sptg)
	e4:SetOperation(s.spop)
	c:RegisterEffect(e4)
end
function s.fieldcon(e)
	return Duel.IsExistingMatchingCard(Card.IsFaceup,e:GetHandlerPlayer(),0,LOCATION_FZONE,1,nil)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(1-tp) end
	if chk==0 then return Duel.IsExistingTarget(nil,tp,0,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,nil,tp,0,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_ATKCHANGE,e:GetHandler(),1,tp,1000)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and Duel.Destroy(tc,REASON_EFFECT)>0
		and c:IsRelateToEffect(e) and c:IsFaceup() then
		--Gains 1000 ATK
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(1000)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD_DISABLE)
		c:RegisterEffect(e1)
	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) 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 c:IsRelateToEffect(e) then
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
	end
end