Tunnelfun4.1t

function fuelLevel()

 if turtle.getFuelLevel() < 1000 then

  turtle.select(1)

  turtle.refuel(8)

  print("Refueled")

 else

  print("Enough Fuel")

 end

end



function mine()

 while turtle.detect() do

  turtle.dig()

  sleep(0.5)

 end

 turtle.forward()

 while turtle.detectUp() do

  turtle.digUp()

  sleep(0.5)

 end

 turtle.digDown()

end



function checkFull()

 if turtle.getItemCount(16) > 0 then

  turtle.back()

  turtle.down()

  turtle.digDown()

  turtle.select(3)

  turtle.placeDown()

  for i = 4,16 do

   turtle.select(i)

   turtle.dropDown()

  end

  turtle.select(2)

  turtle.up()

  turtle.forward()

 end

end



print("Place fuel in slot 1, torches in slot 2, and chests in slot 3!")

print("How wide will the tunnel be?")

local x = read()

print("How long will the tunnel be")

local y = read()

print("Wie oft wieder holen=")

local z = read()

local count = 1
turtle.select(2)

turtle.placeDown()
for i = 1, z do

 for i = 1, y do

   for i = 1, 1 do

    turtle.select(2)

    fuelLevel()

    checkFull()

    mine()

    turtle.turnLeft()

    for i = 1,((x/2)-0.5) do

     mine()

    end

    turtle.turnLeft()

    turtle.turnLeft()

    for i = 1,(x-1) do

     mine()

    end

    turtle.turnLeft()

    turtle.turnLeft()

    for i = 1,((x/2)-0.5) do

     turtle.forward()

    end

    turtle.turnRight()
    if count % 8 == 0 then
            turtle.select(2)
            turtle.placeDown()
     end
   count = count + 1
   end
  end

 print( "Returning to start..." )
 -- Return to where we started
 for i = 1, y do
     turtle.back()
 end
turtle.turnRight()
 for i = 1, x do
  mine()
 end
turtle.turnLeft()
end