local CLOCK
local gptimer=os.clock()-.40
local energyring=3051
local energyring_active=3088
local normalring=12737
local percenthp=40
local checkspeed=.1
local oldnum=0
local oldslot=0

function AutoEnergyRing()
    CLOCK=os.clock()
    if (CLOCK-gptimer<checkspeed) then return 0; end
    gptimer=CLOCK
    if (self.hp<(percenthp*self.hpmax)/100 and self.ring~=energyring) then
        local gp=FindItem(energyring)
        if (gp~=nil) then
            ThrowItemCtoI(gp.num,gp.slot,SLOT_RING,energyring,1)
            oldnum=gp.num
            oldslot=gp.slot
            gptimer=CLOCK+.4
        end
        return
    end
    if (self.hp>self.hpmax-10 and self.ring==energyring_active and normalring>0) then
    local gp=FindItem(normalring)
        if (gp~=nil) then
            ThrowItemCtoI(gp.num,gp.slot,SLOT_RING,normalring,1)
        end
        return
    end
    if (self.hp>self.hpmax-20 and self.ring==energyring_active and normalring==0) then
        print("unloading")
        ThrowItemItoC(SLOT_RING,oldnum,oldslot,energyring_active,1)
        gptimer=CLOCK+1
    end
end


SetTimerCallback("AutoEnergyRing")