xdig

local mode = 1
torchP = 0

function step1()
  term.clear()
  term.setCursorPos(1,1)
  term.write("(Type 1x2, 2x2. 3x3, exit)")
  print("")
  print("SELECT MODE:")

  mode()

end

function mode()
  modein = io.read()

  if modein == "exit" then
  os.reboot()

  elseif modein == "1x2" then
  mode = 2
  step2()

  elseif modein == "2x2" then
  mode = 4
  step2()

  elseif modein == "3x3" then
  mode = 9
  step2()

  else
  step1()

  end
end

function step2()
  term.clear()
  term.setCursorPos(1,1)
  term.write("Turtle should be in the correct pos.")
  print("")
  print("@ = turtle, X = block")
  print("")
  print("X   XX   XXX")
  print("@   @X   XXX")
  print("         X@X")
  print("")
  print("(Only numbers please 1+)")
  print("")
  print("MINE HOW MANY LAYERS:")
  layers = io.read()

  step3()

end

function step3()

torch = tonumber(layers) / 11
totalB = tonumber(layers) * mode
fuelLevel = turtle.getFuelLevel()

  term.clear()
  term.setCursorPos(1,1)
  term.write("Torches needed: "..torch)
  print("")
  print("Current fuel: "..fuelLevel)
  print("")
  print("Expected blocks to be mined: "..totalB)
  if totalB > 896 then
    print("!Warn. Total blocks mined > inv. space!")
  end
  print("Layers: "..layers)
  print("mode: "..mode)
  print("")
  print("Make sure coal is in the first slot, and torches are in the second!")
  print("")
  print("TYPE ANYTHING TO START MINING:")

anyth = io.read()

step4()
end

function step4()
  if mode == 2 then
  oneLoop()

  elseif mode == 4 then
  twoLoop()

  elseif mode == 9 then
  threeLoop()

  else

  end
end

function oneLoop()
blocks = 0

  while layers ~= 0 do
    bMined = turtle.getItemCount(3) + turtle.getItemCount(4) + turtle.getItemCount(5) + turtle.getItemCount(6) + turtle.getItemCount(7) + turtle.getItemCount(8) + turtle.getItemCount(9) + turtle.getItemCount(10) + turtle.getItemCount(11) + turtle.getItemCount(12) + turtle.getItemCount(13) + turtle.getItemCount(14) + turtle.getItemCount(15) + turtle.getItemCount(16)
    fFuel = turtle.getFuelLevel()
    term.clear()
    term.setCursorPos(1,1)
    term.write("MINING IN PROGRESS...")
    print("")
    print("Fuel Left: "..fFuel)
    print("Blocks Mined: "..blocks)
    print("Total Items: "..bMined)
    print("Layers left: "..layers)

  if fFuel <= 1 then
    turtle.select(1)
    turtle.refuel(1)
  end

    while turtle.detect() == true do
      turtle.dig()
      blocks = blocks + 1
      os.sleep(0.4)
    end

  turtle.forward()

    while turtle.detectUp() == true do
      turtle.digUp()
      blocks = blocks + 1
      sleep(0.4)
    end

  if turtle.detectDown() == false then
    turtle.select(3)
    turtle.placeDown()
  end

  if torchP == 10 then
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.select(2)
    turtle.place()
    turtle.turnLeft()
    turtle.turnLeft()
    torchP = 0
  end

  layers = layers - 1
  torchP = torchP + 1

  end
end

function twoLoop()
blocks = 0

  while layers ~= 0 do
    bMined = turtle.getItemCount(3) + turtle.getItemCount(4) + turtle.getItemCount(5) + turtle.getItemCount(6) + turtle.getItemCount(7) + turtle.getItemCount(8) + turtle.getItemCount(9) + turtle.getItemCount(10) + turtle.getItemCount(11) + turtle.getItemCount(12) + turtle.getItemCount(13) + turtle.getItemCount(14) + turtle.getItemCount(15) + turtle.getItemCount(16)
    fFuel = turtle.getFuelLevel()
    term.clear()
    term.setCursorPos(1,1)
    term.write("MINING IN PROGRESS...")
    print("")
    print("Fuel Left: "..fFuel)
    print("Blocks Mined: "..blocks)
    print("Total Items: "..bMined)
    print("Layers left: "..layers)

  if fFuel <= 3 then
    turtle.select(1)
    turtle.refuel(1)
  end

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    sleep(0.4)
  end

  turtle.forward()

  while turtle.detectUp() == true do
    turtle.digUp()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.up()
  turtle.turnRight()

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.down()

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.turnLeft()

  if turtle.detectDown() == false then
    turtle.select(3)
    turtle.placeDown()
  end

  if torchP == 10 then
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.select(2)
    turtle.place()
    turtle.turnLeft()
    turtle.turnLeft()
    torchP = 0
  end

  layers = layers - 1
  torchP = torchP + 1

  end
end

function threeLoop()
blocks = 0

  while layers ~= 0 do
    bMined = turtle.getItemCount(3) + turtle.getItemCount(4) + turtle.getItemCount(5) + turtle.getItemCount(6) + turtle.getItemCount(7) + turtle.getItemCount(8) + turtle.getItemCount(9) + turtle.getItemCount(10) + turtle.getItemCount(11) + turtle.getItemCount(12) + turtle.getItemCount(13) + turtle.getItemCount(14) + turtle.getItemCount(15) + turtle.getItemCount(16)
    fFuel = turtle.getFuelLevel()
    term.clear()
    term.setCursorPos(1,1)
    term.write("MINING IN PROGRESS...")
    print("")
    print("Fuel Left: "..fFuel)
    print("Blocks Mined: "..blocks)
    print("Total Items: "..bMined)
    print("Layers left: "..layers)

  if fFuel <= 6 then
    turtle.select(1)
    turtle.refuel(1)
  end

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.forward()

  while turtle.detectUp() == true do
    turtle.digUp()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.up()

  while turtle.detectUp() == true do
    turtle.digUp()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.up()
  turtle.turnRight()

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.turnLeft()
  turtle.turnLeft()

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.down()

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.turnRight()
  turtle.turnRight()

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.down()

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.turnLeft()
  turtle.turnLeft()

  while turtle.detect() == true do
    turtle.dig()
    blocks = blocks + 1
    os.sleep(0.4)
  end

  turtle.turnRight()

  if turtle.detectDown() == false then
    turtle.select(3)
    turtle.placeDown()
  end

  if torchP == 10 then
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.select(2)
    turtle.place()
    turtle.turnLeft()
    turtle.turnLeft()
    torchP = 0
  end

  layers = layers - 1
  torchP = torchP + 1

  end
end

step1()