turtle.refuel()
local torchDistance = 0
do
turtle.select(2)
turtle.placeDown()
if turtle.detect()
turtle.dig()
turtle.forward()
turtle.digUp()
turtle.turnLeft()
turtle.dig()
turtle.up()
turtle.dig()
turtle.turnRight()
turtle.turnRight()
turtle.dig()
turtle.down()
turtle.dig()
turtle.turnLeft()
else
turtle.forward()
while ivFull() = false

function ivFull()
  local full = true
  for i = 1,16 do
    if turtle.getItemCount(i) == 0 then
      full = false
    end
  end
  return full
end