Blue Eagle Garen Auto Ult

Config = scriptConfig("Garen", "Garen")
Config.addParam("R", "Use R Automatic", SCRIPT_PARAM_ONOFF, true)
PrintChat("Blue Eagle Garen 0.1 by N7Reny")

OnLoop(function(myHero)


Target = GetTarget(675)
 if ValidTarget(Target, 675) then
MHp = GetMaxHP(Target)
CHp = GetCurrentHP(Target)
Dmg = MHp - CHp


if Config.R then
if CanUseSpell(myHero, _R) == READY then
  if ValidTarget(Target, GetCastRange(myHero, _R)) and CalcDamage(myHero, Target, 0, DemacianJ(Dmg)) > GetCurrentHP(Target) then
 CastTargetSpell(Target, _R)
 end
end
end
end
end)

function DemacianJ(Dmg)
        if GetCastLevel(GetMyHero(), _R) < 1 then
                return 0
        end
        if GetCastLevel(GetMyHero(), _R) == 1 then
                return 175 + (Dmg / 3.5)
        end
        if GetCastLevel(GetMyHero(), _R) == 2 then
                return 350 + (Dmg / 3)
        end
        if GetCastLevel(GetMyHero(), _R) == 3 then
                return 525 + (Dmg / 2.5)
        end
end