--created by Seth, coded by Lyris
--Great London Clue - Murder Weapon
local s,id,o=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_SZONE)
	e2:HOPT()
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_LEAVE_FIELD)
	e3:SetRange(LOCATION_SZONE)
	e3:HOPT()
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetCondition(s.spcon)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)>0
		and Duel.GetFieldGroupCount(tp,0,LOCATION_ONFIELD)>0 end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CARDTYPE)
	Duel.SetTargetParam(Duel.AnnounceType(tp))
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetFieldGroupCount(tp,0,LOCATION_DECK)<1 then return end
	Duel.ConfirmDecktop(tp,1)
	if not Duel.GetDecktopGroup(tp,1):GetFirst():IsType(1<<Duel.GetChainInfo(0,CHAININFO_TARGET_PARAM)) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local sg=Duel.GetFieldGroup(tp,0,LOCATION_ONFIELD):Select(tp,1,1,nil)
	Duel.HintSelection(sg)
	Duel.Destroy(sg,REASON_EFFECT)
end
function s.filter(c,tp)
	return c:IsPreviousPosition(POS_FACEUP) and c:IsPreviousSetCard(0xd3f) and c:IsPreviousControler(tp)
		and c:GetReasonPlayer()==1-tp and c:IsReason(REASON_EFFECT)
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.filter,1,nil,tp)
end
function s.sfilter(c,e,tp)
	return c:IsSetCard(0xd3f) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
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 Duel.IsExistingMatchingCard(s.sfilter,tp,LOCATION_GRAVE+LOCATION_HAND,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_GRAVE+LOCATION_HAND)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<1 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	Duel.SpecialSummon(Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.sfilter),tp,LOCATION_GRAVE+LOCATION_HAND,0,1,1,nil,e,tp),0,tp,tp,false,false,POS_FACEUP)
end