Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control a "Dinomorphia" Fusion Monster: Pay half your LP and banish 1 Counter Trap from your GY; this effect becomes that Counter Trap's effect when that card is activated. During damage calculation while your LP are 2000 or less, if you would take battle damage: You can banish this card from your GY; you take no battle damage from that battle. You can only activate 1 "Dinomorphia Reversion" per turn.
--ダイノルフィア・リヴァージョン
--Dinomorphia Reversion
--scripted by pyrQ
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCondition(s.condition1)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	c:RegisterEffect(e1)
	local e1a=e1:Clone()
	e1a:SetCode(EVENT_SUMMON)
	e1a:SetCondition(s.condition2)
	c:RegisterEffect(e1a)
	local e1b=e1:Clone()
	e1b:SetCode(EVENT_FLIP_SUMMON)
	e1b:SetCondition(s.condition2)
	c:RegisterEffect(e1b)
	local e1c=e1:Clone()
	e1c:SetCode(EVENT_SPSUMMON)
	e1c:SetCondition(s.condition2)
	c:RegisterEffect(e1c)
	--No battle damage
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetCode(EVENT_PRE_DAMAGE_CALCULATE)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCondition(s.nodamcon)
	e2:SetCost(Cost.SelfBanish)
	e2:SetOperation(s.nodamop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_DINOMORPHIA}
function s.cfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_DINOMORPHIA) and c:IsType(TYPE_FUSION)
end
function s.condition1(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,nil)
end
function s.condition2(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetCurrentChain(true)==0 and Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,nil)
end
function s.effilter(c)
	if not c:IsAbleToRemoveAsCost() or not c:IsType(TYPE_COUNTER) then return false end
	local eff=c:CheckActivateEffect(false,true,false)
	return eff and eff:GetOperation()~=nil
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.effilter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.PayLPCost(tp,Duel.GetLP(tp)//2)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then
		local te=e:GetLabelObject()
		if not te then return end
		local tg=te:GetTarget()
		return tg and tg(e,tp,eg,ep,ev,re,r,rp,0,chkc)
	end
	if chk==0 then return true end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
	local g=Duel.SelectMatchingCard(tp,s.effilter,tp,LOCATION_GRAVE,0,1,1,nil)
	if Duel.Remove(g,POS_FACEUP,REASON_COST)==0 then return end
	local te,ceg,cep,cev,cre,cr,crp=g:GetFirst():CheckActivateEffect(false,true,true)
	e:SetLabel(te:GetLabel())
	e:SetLabelObject(te:GetLabelObject())
	local tg=te:GetTarget()
	if tg then tg(e,tp,ceg,cep,cev,cre,cr,crp,1) end
	te:SetLabel(e:GetLabel())
	te:SetLabelObject(e:GetLabelObject())
	e:SetLabelObject(te)
	Duel.ClearOperationInfo(0)
	e:SetOperation(s.activate)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local te=e:GetLabelObject()
	if not te then return end
	e:SetLabel(te:GetLabel())
	e:SetLabelObject(te:GetLabelObject())
	local op=te:GetOperation()
	if op then op(e,tp,eg,ep,ev,re,r,rp) end
	te:SetLabel(e:GetLabel())
	te:SetLabelObject(e:GetLabelObject())
	e:SetOperation(nil)
end
function s.nodamcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetLP(tp)<=2000 and Duel.GetBattleDamage(tp)>0 and not Duel.IsPlayerAffectedByEffect(tp,EFFECT_AVOID_BATTLE_DAMAGE)
end
function s.nodamop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.IsPlayerAffectedByEffect(tp,EFFECT_AVOID_BATTLE_DAMAGE) then return end
	--No battle damage
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_AVOID_BATTLE_DAMAGE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(1,0)
	e1:SetReset(RESET_PHASE|PHASE_DAMAGE)
	Duel.RegisterEffect(e1,tp)
end