Machina
When this card is Normal Summoned while you control no other monsters: You can Special Summon 1 "Machina" monster from your hand, except "Machina Soldier".
local SETCARD_ID_0 = 0x36 --Machina

local SETCARD_ID_0 = 0x36 --Machina
local s, id, o = GetID()
function s.initial_effect(c)
	--summon success
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCondition(s.sumcon)
	e1:SetTarget(s.sumtg)
	e1:SetOperation(s.sumop)
	c:RegisterEffect(e1)
end
function s.sumcon(e, tp, eg, ep, ev, re, r, rp)
	return Duel.GetFieldGroupCount(tp, LOCATION_MZONE, 0) == 1
end
function s.filter(c, e, tp)
	return c:IsSetCard(SETCARD_ID_0) and not c:IsCode(id) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sumtg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_HAND, 0, 1, nil, e, tp)
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_HAND)
end
function s.sumop(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:GetCount() > 0 then
		Duel.SpecialSummon(g, 0, tp, tp, false, false, POS_FACEUP)
	end
end


Machina
When this card is Normal Summoned while you control no other monsters: You can Special Summon 1 "Machina" monster from your hand, except "Machina Soldier".
-- Machina
local SETCARD_ID_0 = 0x36 --Machina
local s, id, o = GetID()
function s.initial_effect(c)
	--summon success
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCondition(s.sumcon)
	e1:SetTarget(s.sumtg)
	e1:SetOperation(s.sumop)
	c:RegisterEffect(e1)
end
function s.sumcon(e, tp, eg, ep, ev, re, r, rp)
	return Duel.GetFieldGroupCount(tp, LOCATION_MZONE, 0) == 1
end
function s.filter(c, e, tp)
	return c:IsSetCard(SETCARD_ID_0) and not c:IsCode(id) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sumtg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_HAND, 0, 1, nil, e, tp)
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_HAND)
end
function s.sumop(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:GetCount() > 0 then
		Duel.SpecialSummon(g, 0, tp, tp, false, false, POS_FACEUP)
	end
end

