Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If 2 or more cards are in the same column, you can Special Summon this card (from your hand) in that column. You can only Special Summon "Mekk-Knight Orange Sunset" once per turn this way. If an opponent's card in this card's column is destroyed by battle, or leaves the field: You can Special Summon 1 "Mekk-Knight" monster from your hand.
--燈影の機界騎士
--Mekk-Knight Orange Sunset
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon itself from hand
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetValue(s.hspval)
	c:RegisterEffect(e1)
	--Special Summon 1 "Mekk-Knight" from hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_LEAVE_FIELD)
	e2:SetRange(LOCATION_MZONE)
	e2:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_DAMAGE_STEP)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_MEKK_KNIGHT}
function s.cfilter(c)
	return c:GetColumnGroupCount()>0
end
function s.hspval(e,c)
	local tp=c:GetControler()
	local zone=0
	local lg=Duel.GetMatchingGroup(s.cfilter,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,nil)
	for tc in aux.Next(lg) do
		zone=(zone|tc:GetColumnZone(LOCATION_MZONE,0,0,tp))
	end
	return 0,zone
end
function s.spcfilter(c,tp,mc)
	if c:IsPreviousControler(tp) then return false end
	local zone=mc:GetColumnZone(LOCATION_ONFIELD)
	local seq=c:GetPreviousSequence()+16
	if c:IsPreviousLocation(LOCATION_SZONE) then seq=seq+8 end
	return zone and bit.extract(zone,seq)~=0
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.spcfilter,1,nil,tp,e:GetHandler())
end
function s.filter(c,e,tp)
	return c:IsSetCard(SET_MEKK_KNIGHT) and c:IsMonster() and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
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 Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_HAND,0,1,nil,e,tp)
		and c:GetFlagEffect(id)==0 end
	c:RegisterFlagEffect(id,RESET_CHAIN,0,1)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_HAND,0,1,1,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end