--弾丸特急バレット・ライナー
--Super Express Bullet Train
--Scripted by AlphaKretin and Larry126 (attack cost)
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--attack cost
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_ATTACK_COST)
	e2:SetCost(s.atcost)
	e2:SetOperation(s.atop)
	c:RegisterEffect(e2)
	--register to grave
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e3:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetOperation(s.regop)
	c:RegisterEffect(e3)
	--search
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,1))
	e4:SetCategory(CATEGORY_TOHAND)
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e4:SetCode(EVENT_PHASE+PHASE_END)
	e4:SetCountLimit(1,{id,1})
	e4:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e4:SetRange(LOCATION_GRAVE)
	e4:SetCondition(s.thcon)
	e4:SetTarget(s.thtg)
	e4:SetOperation(s.thop)
	c:RegisterEffect(e4)
end
s.listed_names={id}
function s.cfilter(c)
	return c:IsFaceup() and c:IsRace(RACE_MACHINE) and c:IsAttribute(ATTRIBUTE_EARTH)
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetFieldGroup(tp,LOCATION_MZONE,0)
	return #g>0 and g:FilterCount(s.cfilter,nil)==#g
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 not c:IsRelateToEffect(e) then return end
	Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
end
function s.atcost(e,c,tp)
	return Duel.IsExistingMatchingCard(Card.IsAbleToGraveAsCost,tp,LOCATION_ONFIELD,0,2,e:GetHandler())
end
function s.atop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.IsAttackCostPaid()~=2 and e:GetHandler():IsLocation(LOCATION_MZONE) then
		local g=Duel.GetMatchingGroup(Card.IsAbleToGraveAsCost,tp,LOCATION_ONFIELD,0,e:GetHandler())
		local sg=aux.SelectUnselectGroup(g,e,tp,0,2,nil,1,tp,HINTMSG_TOGRAVE,function() return Duel.IsAttackCostPaid()==0 end,nil)
		if #sg==2 then
			Duel.SendtoGrave(sg,REASON_COST)
			Duel.AttackCostPaid()
		else
			Duel.AttackCostPaid(2)
		end
	end
end
function s.regop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	c:RegisterFlagEffect(id,RESETS_STANDARD_PHASE_END,0,1)
end
function s.thfilter(c)
	return c:IsRace(RACE_MACHINE) and not c:IsCode(id) and c:IsAbleToHand()
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():GetFlagEffect(id)>0
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.thfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.thfilter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectTarget(tp,s.thfilter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,tp,LOCATION_GRAVE)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,tc)
	end
end