Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Activate by discarding 1 card, then target up to 2 monsters in your GY; Special Summon them. When any of those monsters leaves the field, destroy this card. When this card leaves the field, destroy those monster(s). You can only activate 1 "Double Hooking" per turn.
--ダブル・フッキング
--Double Hooking
--scripted by pyrQ
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(0,TIMINGS_CHECK_MONSTER_E)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
	--Destroy this card when any of the targeted monsters leave the field
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EVENT_LEAVE_FIELD)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCondition(s.selfdescon)
	e2:SetOperation(function(e) Duel.Destroy(e:GetHandler(),REASON_EFFECT) end)
	c:RegisterEffect(e2)
	--Destroy the targeted monsters when this card leaves the field
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e3:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e3:SetCode(EVENT_LEAVE_FIELD_P)
	e3:SetOperation(s.checkop)
	c:RegisterEffect(e3)
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e4:SetCode(EVENT_LEAVE_FIELD)
	e4:SetCondition(function(e) return e:GetLabelObject():GetLabel()==0 end)
	e4:SetOperation(s.mondesop)
	e4:SetLabelObject(e3)
	c:RegisterEffect(e4)
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsDiscardable,tp,LOCATION_HAND,0,1,e:GetHandler()) end
	Duel.DiscardHand(tp,Card.IsDiscardable,1,1,REASON_COST|REASON_DISCARD)
end
function s.spfilter(c,e,tp)
	return c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.spfilter(chkc,e,tp) end
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if chk==0 then return ft>0 and Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	ft=math.min(ft,2)
	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then ft=1 end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE,0,1,ft,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,#g,0,0)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local tg=Duel.GetTargetCards(e)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if #tg==0 or ft==0 then return end
	if #tg>1 and Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return end
	if #tg>ft then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		tg=tg:Select(tp,1,1,nil)
	end
	local c=e:GetHandler()
	for tc in tg:Iter() do
		if Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP) then
			c:SetCardTarget(tc)
		end
	end
	Duel.SpecialSummonComplete()
end
function s.selfdescon(e,tp,eg,ep,ev,re,r,rp)
	local tg=e:GetHandler():GetCardTarget()
	return tg and #tg>0 and #(eg&tg)>0
end
function s.checkop(e,tp,eg,ep,ev,re,r,rp)
	if e:GetHandler():IsDisabled() then
		e:SetLabel(1)
	else e:SetLabel(0) end
end
function s.mondesop(e,tp,eg,ep,ev,re,r,rp)
	local tg=e:GetHandler():GetCardTarget():Match(Card.IsLocation,nil,LOCATION_MZONE)
	if not tg or #tg==0 then return end
	Duel.Destroy(tg,REASON_EFFECT)
end