dig

function clear()
  term.clear()
  term.setCursorPos(1,1)
end

function dig()
  while(turtle.detectUp()) do
    turtle.digUp()
    sleep(.5)
  end
  while(turtle.detect()) do
    turtle.dig()
    sleep(.5)
  end
end

function moveForward()
  turtle.forward()
  dLeft = dLeft - 1
  torch = torch + 1
  clear()
  print("Strip Mining...")
  print("Distance Left: "..dLeft)
  fuel = turtle.getFuelLevel()
  print("Fuel Level: "..fuel)
  if not turtle.detectDown() then
    turtle.placeDown()
  end
end

function placeTorch()
  turtle.select(2)
  turtle.turnRight()
  turtle.dig()
  turtle.place()
  turtle.turnLeft()
  turtle.select(1)
  torch = 0
end

-- MAIN --
dLeft = 64
torch = 0

clear()
print("Starting Strip Mine...")
sleep(3)

turtle.select(16)
turtle.refuel()
turtle.select(1)

term.clear()
term.setCursorPos(1,1)
clear()
print("Strip Mining...")

while(dLeft > 0) do
  dig()
  if (torch > 6) then
    placeTorch()
  end

  moveForward()

  if not turtle.detectDown() then
    turtle.placeDown()
  end


end