Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control "Dragon Ravine" or a "Dragunity" monster: You can Special Summon this card from your hand. If a "Dragunity" Monster Card(s) is in your Spell & Trap Zone: You can target 1 Spell/Trap on the field; destroy it. You can only use each effect of "Dragunity Legatus" once per turn.
--ドラグニティーレガトゥス
--Dragunity Legatus
--Scripted by AlphaKretin
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon from hand
	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)
	--Destroy Spell/Trap
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_MZONE)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.descon)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
end
s.listed_names={62265044}
s.listed_series={SET_DRAGUNITY}
function s.spcfilter(c)
	return c:IsFaceup() and ((c:IsMonster() and c:IsSetCard(SET_DRAGUNITY)) or c:IsCode(62265044))
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.spcfilter,tp,LOCATION_ONFIELD,0,1,nil)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),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.descfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_DRAGUNITY) and c:IsOriginalType(TYPE_MONSTER)
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.descfilter,tp,LOCATION_SZONE,0,1,nil)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chkc:IsSpellTrap() end
	if chk==0 then return Duel.IsExistingTarget(Card.IsSpellTrap,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,Card.IsSpellTrap,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end