clear.lua

local args = {...}

function refuel()
    if (turtle.getFuelLevel() < 100) then
        turtle.select(1)
        turtle.refuel(1)
    end
end

-- Dig while you keep detecting
function dig()
    while (turtle.detect()) do
        turtle.dig()
        os.sleep(.50)
    end
end

-- Go to original position
function reset(s)

end

function doTurn(dir)
    if (dir == 0) then
        turtle.turnRight()
        dig()
        turtle.forward()
        turtle.turnRight()
    else
        turtle.turnLeft()
        dig()
        turtle.forward()
        turtle.turnLeft()
    end
end

-- Clear Area
function clear(s)
    for i=0,s,1 do
        for j=0,s,1 do
            for k=0,s-1,1 do
                refuel()
                dig()
                turtle.forward()
            end

            if (j < s-1) then
                doTurn(j%2)            end
            end
        end

        turtle.digUp()
        turtle.up()

        turtle.turnRight()
        turtle.turnRight()
    end
end


clear(tonumber(args[1]))