Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
All Plant-Type monsters you currently control gain 300 ATK for each Plant-Type monster currently in your Graveyard, until the end of this turn. During the End Phase, destroy all Plant-Type monsters you control.
--狂植物の氾濫
--Raging Mad Plants
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_DAMAGE_STEP)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(TIMING_DAMAGE_STEP)
	e1:SetCondition(aux.StatChangeDamageStepCondition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsRace,RACE_PLANT),tp,LOCATION_MZONE,0,1,nil)
		and Duel.IsExistingMatchingCard(Card.IsRace,tp,LOCATION_GRAVE,0,1,nil,RACE_PLANT) end
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(aux.FaceupFilter(Card.IsRace,RACE_PLANT),tp,LOCATION_MZONE,0,nil)
	local atk=Duel.GetMatchingGroupCount(Card.IsRace,tp,LOCATION_GRAVE,0,nil,RACE_PLANT)*300
	local c=e:GetHandler()
	for tc in g:Iter() do
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		e1:SetValue(atk)
		tc:RegisterEffect(e1)
	end
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EVENT_PHASE+PHASE_END)
	e2:SetReset(RESET_PHASE|PHASE_END)
	e2:SetCountLimit(1)
	e2:SetCondition(s.descon)
	e2:SetOperation(s.desop)
	Duel.RegisterEffect(e2,tp)
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsRace,RACE_PLANT),tp,LOCATION_MZONE,0,1,nil)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(aux.FaceupFilter(Card.IsRace,RACE_PLANT),tp,LOCATION_MZONE,0,nil)
	Duel.Destroy(g,REASON_EFFECT)
end