Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When a Defense Position monster is destroyed by battle and sent to the Graveyard, inflict 500 damage to your opponent.
--チェイス・スカッド
--Pursuit Chaser
local s,id=GetID()
function s.initial_effect(c)
	--damage
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DAMAGE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetType(EFFECT_TYPE_TRIGGER_F+EFFECT_TYPE_FIELD)
	e1:SetCode(EVENT_BATTLE_DESTROYED)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.damcon)
	e1:SetTarget(s.damtg)
	e1:SetOperation(s.damop)
	c:RegisterEffect(e1)
end
function s.cfilter(c)
	return c:IsPreviousPosition(POS_DEFENSE) and c:IsLocation(LOCATION_GRAVE)
		and c:IsReason(REASON_BATTLE) and c:IsMonster()
end
function s.damcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.cfilter,1,nil)
end
function s.damtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsRelateToEffect(e) and e:GetHandler():IsFaceup() end
	Duel.SetTargetPlayer(1-tp)
	Duel.SetTargetParam(500)
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,500)
end
function s.damop(e,tp,eg,ep,ev,re,r,rp)
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	Duel.Damage(p,d,REASON_EFFECT)
end