_ROOMER

local spacing = 16
local grid = 18
local size = spacing * grid
local done = false

function IsEnderChest()
    success, data = turtle.inspectDown()
    if not success then
        return false
    end
    if data.name == "enderstorage:ender_storage" then
        return true
    end
    return false
end

function ExternalRefuelCheck()
    if turtle.getFuelLevel() < 99990 then
        turtle.up()
        turtle.select(16)
        turtle.place()
        turtle.down()
        turtle.select(15)
        turtle.place()

        local fuelLevel = turtle.getFuelLevel()
        local flmx = turtle.getFuelLimit()
        while fuelLevel ~= flmx do
            fuelLevel = turtle.getFuelLevel()
            oldxc, oldyc = term.getCursorPos()
            term.setCursorPos(1,oldyc-1)
            print("Refueled: " .. fuelLevel)
            sleep(1)
        end

        turtle.dig()
        turtle.up()
        turtle.select(16)
        turtle.dig()
        turtle.down()
    end
end

function CallExternal()
    turtle.select(1)
    while not turtle.placeDown() do end

    turtle.select(2)
    turtle.dropDown()
    turtle.select(3)
    turtle.dropDown()
    turtle.select(4)
    turtle.dropDown()
    turtle.select(1)


    while not turtle.back() do end
    while not turtle.down() do end

    peripheral.call("front", "turnOn")

    turtle.turnLeft()
    while not turtle.forward() do end
    turtle.turnRight()

    ExternalRefuelCheck()

    turtle.turnRight()
    while not turtle.up() do end
    while not turtle.forward() do end
    turtle.turnLeft()

    while not IsEnderChest() do end
    while IsEnderChest() do end

    while not turtle.down() do end
    turtle.dig()
    while not turtle.up() do end
    while not turtle.forward() do end
end

for i=1,grid do
    local _j = 0;
    local m = 0
    CallExternal()
    while m ~= size - spacing do
        local j = tonumber(string.format("%.0f", m / spacing - 0.5))
        if (j ~= _j and j > 0) then
            _j = j
            CallExternal()
        end

        if turtle.forward() then
            m = m + 1
        end
        print("fisrt: m=" .. m .. " | j=" .. j)
    end
    CallExternal()

    local m = 0
    while m ~= size - spacing do
        if turtle.back() then
            m = m + 1
        end
    end
    if i ~= grid then
        turtle.turnLeft()
        local m = 0
        while m ~= spacing do
            if turtle.forward() then
                m = m + 1
            end
        end
        turtle.turnRight()
    end
end
print("END")