Ender IO Capacitor Monitor

--Fetching Sides from File
isset = fs.exists(".capacitordata")
data = {}
    --Saving variables to file
    if isset == true then
        handle = assert(fs.open(".capacitordata", "r"), "Couldn't load vars")
        data = textutils.unserialize(handle.readAll())
        handle.close()
    elseif isset == false then
        handle = assert(fs.open(".capacitordata", "w"), "Couldn't load vars")
        term.clear()
        term.setCursorPos(1,1)
        term.write("Enter side of Advanced Monitor: ")
        monitorside = read()
        term.setCursorPos(1,2)
        term.write("Enter side of Capacitor Bank: ")
        capacitor = read()
        data.capacitor = capacitor
        data.monitorside = monitorside
        handle.write(textutils.serialize(data))
        handle.close()
    end

--Wrapped monitor and Capacitor Bank as peripherals
monitor = peripheral.wrap(data.monitorside)
cap = peripheral.wrap(data.capacitor)
monitor.clear()

--Infinite loop for Dynamic Data
while true do
monx, mony = monitor.getSize()
stored = cap.getEnergyStored("1")
maxstored = cap.getMaxEnergyStored("1")
percent = math.ceil((stored / maxstored) * 100)
pxpl = math.ceil(mony * (percent / 100))
print(pxpl)
sleep(1)
term.redirect(monitor)
paintutils.drawLine(monx,mony,0, 0,colors.black)
term.restore()
monitor.clear()
    for i = 1, monx do
        term.redirect(monitor)
        paintutils.drawLine(i, mony, i, mony - pxpl, colors.green)
        term.restore()
        print(i)
        print(mony)
        print(pxpl)
    end
end