TappyMC

local fuelLevelToRefuelAt = 5
local refuelItemsToUseWhenRefuelling = 63
local emergencyFuelToRetain = 0

local function forward(x)
  for i = 1, x do
    turtle.forward()
  end
end

local function back(x)
  for i = 1, x do
    turtle.back()
  end
end

local function up(x)
  for i = 1, x do
    turtle.up()
  end
end

local function down(x)
  for i = 1, x do
    turtle.down()
  end
end

function empty()
    if turtle.detectDown() == true then
        turtle.select(1)
        turtle.dropUp()
        turtle.select(2)
        turtle.dropUp()
        turtle.select(3)
        turtle.dropUp()
        turtle.select(4)
        turtle.dropUp()
        turtle.select(5)
        turtle.dropUp()
        turtle.select(6)
        turtle.dropUp()
        turtle.select(7)
        turtle.dropUp()
        turtle.select(8)
        turtle.dropUp()
        turtle.select(9)
        turtle.dropUp()
        turtle.select(1)
end
end
function ensureFuel()

  -- Determine whether a refuel is required
  local fuelLevel = turtle.getFuelLevel()
  if (fuelLevel ~= "unlimited") then
    if (fuelLevel < fuelLevelToRefuelAt) then
      -- Need to refuel
      turtle.select(16)
      currentlySelectedSlot = 16
      local fuelItems = turtle.getItemCount(16)

      -- Do we need to impact the emergency fuel to continue? (always
      -- keep one fuel item in slot 16)
      if (fuelItems == 0) then
        writeMessage("Completely out of fuel!", messageLevel.FATAL)
      elseif (fuelItems == 1) then
        writeMessage("Out of Fuel!", messageLevel.ERROR)
        turtle.refuel()
      elseif (fuelItems <= (emergencyFuelToRetain + 1)) then
        writeMessage("Consuming emergency fuel supply. "..(fuelItems - 2).." emergency fuel items remain", messageLevel.WARNING)
        turtle.refuel(1)
      else
        -- Refuel the lesser of the refuelItemsToUseWhenRefuelling and the number of items more than
        -- the emergency fuel level
        if (fuelItems - (emergencyFuelToRetain + 1) < refuelItemsToUseWhenRefuelling) then
          turtle.refuel(fuelItems - (emergencyFuelToRetain + 1))
        else
          turtle.refuel(refuelItemsToUseWhenRefuelling)
        end
      end
    end
  end
end
--Begin Route
ensureFuel()
back(2)
turtle.turnRight()
forward(4)
turtle.turnLeft()
forward(3)
turtle.turnRight()
forward(2)
turtle.turnRight()
down(4)
turtle.dig()

turtle.turnLeft()
forward(4)
turtle.turnRight()
forward(1)
turtle.turnRight()
up(1)
turtle.dig()

turtle.turnLeft()
forward(3)
turtle.turnLeft()
forward(1)
down(1)
turtle.dig()

turtle.turnRight()
forward(1)
turtle.turnLeft()
forward(2)
turtle.turnRight()
forward(2)
turtle.turnRight()
turtle.dig()

up(4)
turtle.turnRight()
forward(6)
turtle.turnLeft()
turtle.dig()

turtle.turnLeft()
forward(1)
turtle.turnRight()
forward(1)
turtle.turnLeft()
forward(1)
up(1)
turtle.dig()

down(1)
turtle.turnRight()
forward(3)
turtle.turnLeft()
turtle.dig()

turtle.turnRight()
forward(3)
turtle.turnLeft()
turtle.dig()

turtle.turnLeft()
forward(1)
turtle.turnRight()
forward(3)
turtle.turnLeft()
forward(2)
turtle.turnRight()
down(1)
turtle.dig()
up(2)
turtle.dig()

down(1)
turtle.turnRight()
forward(5)
turtle.turnRight()
forward(3)
turtle.turnLeft()
forward(4)
turtle.turnRight()
forward(2)
empty()

os.sleep(900)
os.reboot()