makefloor.lua

if turtle.getFuelLevel() <= 80 then
  turtle.select(1)
  turtle.refuel(5)
end
local fuel = turtle.getFuelLevel()
print("fuel:"..tostring(fuel))

local function PutLine(n)
  for i=1, tonumber(n) do
    if not turtle.detectDown() then
      print("place")
      turtle.placeDown()
    else
      print("skip")
    end
    turtle.forward()
  end
end

local function MakeFloor(d, w)
  d = tonumber(d)
  w = tonumber(w)
  for i=1, w do
    PutLine(d)
    if i % 2 == 1 then
      turtle.turnRight()
      turtle.forward()
      turtle.turnRight()
    else
      turtle.turnLeft()
      turtle.forward()
      turtle.turnLeft()
    end
    turtle.forward()
  end

  if w % 2 == 1 then
    for i=1, d do
      turtle.forward()
    end
    turtle.turnRight()
    turtle.turnRight()
  end
  turtle.turnLeft()
  for i=1, w do
    turtle.forward()
  end
  turtle.turnRight()
end

turtle.select(2)
turtle.forward()
turtle.up()
MakeFloor(8, 6)
turtle.back()
turtle.down()