Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
This card gains 100 DEF for each Reptile-Type "Worm" monster in your Graveyard. If your opponent takes Battle Damage from attacking this card, at the end of the Damage Step select 1 Spell or Trap Card your opponent controls, and destroy it.
--ワーム・ソリッド
--Worm Solid
local s,id=GetID()
function s.initial_effect(c)
	--defup
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_UPDATE_DEFENSE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetValue(s.defval)
	c:RegisterEffect(e1)
	--destroy
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EVENT_BATTLE_DAMAGE)
	e2:SetOperation(s.regop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_WORM}
function s.vfilter(c)
	return c:IsSetCard(SET_WORM) and c:IsRace(RACE_REPTILE)
end
function s.defval(e,c)
	return Duel.GetMatchingGroupCount(s.vfilter,c:GetControler(),LOCATION_GRAVE,0,nil)*100
end
function s.regop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsDefensePos() and c==Duel.GetAttackTarget() then
		local e1=Effect.CreateEffect(c)
		e1:SetDescription(aux.Stringid(id,0))
		e1:SetCategory(CATEGORY_DESTROY)
		e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
		e1:SetCode(EVENT_DAMAGE_STEP_END)
		e1:SetTarget(s.destg)
		e1:SetOperation(s.desop)
		e1:SetReset(RESET_PHASE|PHASE_DAMAGE)
		c:RegisterEffect(e1)
	end
end
function s.desfilter(c)
	return c:IsSpellTrap()
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chkc:IsControler(1-tp) and s.desfilter(chkc) end
	if chk==0 then return true end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,s.desfilter,tp,0,LOCATION_ONFIELD,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,#g,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end