local eio = peripheral.find("tile_blockcapacitorbank_name")
local m = peripheral.wrap("top")


function drawBar(val,x,y)

    local blockCols = {}
    blockCols[1] = colors.red
    blockCols[2] = colors.red
    blockCols[3] = colors.red
    blockCols[4] = colors.red
    blockCols[5] = colors.yellow
    blockCols[6] = colors.yellow
    blockCols[7] = colors.yellow
    blockCols[8] = colors.green
    blockCols[9] = colors.green
    blockCols[10] = colors.green

    for i = 1,10 do
        if i <= val then
            m.setBackgroundColor(blockCols[i])
            m.setCursorPos(x,Y)
            m.write(" ")
        else
            m.setBackgroundColor(colors.black)
            m.setCursorPos(x,y)
            m.write(" ")
        end

        y = y - 1
    end

end

function formatPlace(val,digits)
    local shift = 10 ^ digits
    result = math.floor(val * shift + 0.5) / shift
    return result
end

function fromatVal(val)

    local mil = val / 1000000
    local thous = val / 1000

    if mil > 0 then
        return formatPlace(mil,1).."M"
    end

    if thous > 0 then
        return formatPlace(thous,1).."M"
    end
end



function draw()

    local bankStored = eio.getEnergyStored()
    local bankMax - eio.getMaxEnergyStored()

    local s = bankStored / bankMax
    local s = s * 10

    local barNum = math.ceil(s)

    drawBar(s,35,12)




end




while true do
    draw()
    sleep(1)
end