--土俵間際
--Edge of the Ring
--Scripted by ahtelel
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DAMAGE)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetLP(tp)<Duel.GetLP(1-tp)
end
function s.filter(c)
	return c:IsFaceup() and c:GetBaseAttack()>0 
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(1-tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,0,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	local g=Duel.SelectTarget(tp,s.filter,tp,0,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,g:GetFirst():GetBaseAttack()/2)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsFaceup() and tc:GetBaseAttack()>0 then
		Duel.Damage(1-tp,tc:GetBaseAttack()/2,REASON_EFFECT)
	end
	if e:IsHasType(EFFECT_TYPE_ACTIVATE) then
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_FIELD)
		e1:SetCode(EFFECT_CHANGE_DAMAGE)
		e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
		e1:SetTargetRange(0,1)
		e1:SetValue(0)
		e1:SetReset(RESET_PHASE|PHASE_END,2)
		Duel.RegisterEffect(e1,tp)
		local e2=e1:Clone()
		e2:SetCode(EFFECT_NO_EFFECT_DAMAGE)
		e2:SetReset(RESET_PHASE|PHASE_END,2)
		Duel.RegisterEffect(e2,tp)
	end
end