Mining Turtle with Ender Chest

--Strip mining turtle program with enderchest.
--Start this program after its finished: http://pastebin.com/SzytbMqB
--Credit for this script goes to:
--Gabriel *******(Spirr0u)
--I saved to my pastebin so I can easily find it. :) Thank you.


function checkFuel()
  while turtle.getFuelLevel() <= 50 do
    turtle.select(15)
    turtle.refuel(1)
    turtle.select(1)
  end
end

function forward()
  while turtle.detect() do
    turtle.dig()
    sleep(0.5)
  end
  while turtle.detectUp() do
    turtle.digUp()
    sleep(0.5)
  end
  if turtle.detectDown() then
    turtle.forward()
  else
    turtle.select(1)
    turtle.placeDown()
    turtle.forward()
  end
end

function turnAround()
  turtle.turnRight()
  turtle.turnRight()
end

function back()
  while turtle.detectUp() do
    turtle.digUp()
    sleep(0.5)
  end
  turtle.up()
  turnAround()
  while tunnellength > 0 do
    while turtle.detect() do
      turtle.dig()
      sleep(1)
    end
    turtle.forward()
    tunnellength = tunnellength - 1
  end
  turtle.digDown()
  turtle.down()
end

function chest()
  turtle.select(14)
  while turtle.detect() do
    turtle.dig()
    sleep(0.5)
  end
  turtle.dig()
  turtle.place()
  turtle.select(2)
  turtle.drop()
  turtle.select(3)
  turtle.drop()
  turtle.select(4)
  turtle.drop()
  turtle.select(5)
  turtle.drop()
  turtle.select(6)
  turtle.drop()
  turtle.select(7)
  turtle.drop()
  turtle.select(8)
  turtle.drop()
  turtle.select(9)
  turtle.drop()
  turtle.select(10)
  turtle.drop()
  turtle.select(11)
  turtle.drop()
  turtle.select(12)
  turtle.drop()
  turtle.select(13)
  turtle.drop()
  turtle.select(14)
  turtle.dig()
  turtle.select(1)
end

--Main script
print("Cobblestone in slot 1, enderchest in slot 14, fuel in slot 15, torches in slot 16.")
print("Input total mines:")
abzweigungen = io.read()
abzweigungen = abzweigungen +0
z = 0
tunnellength = abzweigungen*3

print("mines : ")
print("0")
while abzweigungen > 0 do
  x = 0
  y = 0
  checkFuel()
  forward()
  turnAround()
  chest()
  turnAround()
  forward()
  turtle.turnLeft()
  forward()
  forward()
  forward()
  forward()
  forward()
  forward()
  while turtle.detectUp() do
    turtle.digUp()
    sleep(0.5)
  end
  turnAround()
  while x < 12 do
    forward()
    x= x + 1
    sleep(0.1)
  end
  while turtle.detectUp() do
    turtle.digUp()
    sleep(0.1)
  end
  turnAround()
  while y < 6 do
    forward()
    y = y + 1
    sleep(0.1)
  end
  while turtle.detectUp() do
    turtle.digUp()
    sleep(0.5)
  end
  turtle.turnRight()
  while turtle.detect() do
    turtle.dig()
    sleep(0.5)
  end
  turtle.forward()
  turnAround()
  turtle.select(16)
  while turtle.detect() do
    turtle.dig()
    sleep(0.5)
  end
  turtle.place()
  turnAround()

  z = z + 1
  print(z)
  abzweigungen = abzweigungen - 1
end
print("Go back")
back()
print("Finish")
print("Now you can start the nextmine program.")