turtle chunk light placer

--16X16 space break and place lights every other block
local space_x = 16
local space_y = 16
local moves = 0
local fuel_level = 0
local drops = 0
local last_turn = 'left' --Based on where turtle starts from
turtle.select(1) --Fuel
turtle.refuel()
fuel_level = turtle.getFuelLevel()

--Select item to place
turtle.select(2)


while true do
    turtle.digDown()
    turtle.placeDown()

    drops = drops + 1
    if drops >= 64 then
        turtle.select(3) -- Select the second slot with lights in it
        --drops = 0
    end
    if drops >= 128 then
        --exit
        os.exit()
    end



    if moves < 16 then
        turtle.forward()
        turtle.forward()
        moves = moves + 2
    end

    --Turn right
    if moves >= 16 and last_turn == 'left' then
        --Move over one row then turn around
        turtle.turnRight()
        turtle.forward()
        turtle.turnRight()
        last_turn = 'right'
        moves = 0
    end

    --Turn left
    if moves >= 16 and last_turn == 'right' then
        --Move over one row then turn around
        turtle.turnLeft()
        turtle.forward()
        turtle.turnLeft()
        last_turn = 'left'
        moves = 0
    end





end