View difference between Paste ID: W1WBsRrR and FivDDS7f

 -- Auftanken
 local function refuel()
 	local fuelLevel = turtle.getFuelLevel()
 	if fuelLevel == "unlimited" or fuelLevel > 20 then
 		return
-  print("1")
+	end
 
 	local function tryRefuel()
-   print("2")
+		for n=13,16 do
 			if turtle.getItemCount(n) > 0 then
 				turtle.select(n)
---  turtle.digDown()
+				if turtle.refuel(1) then
 					turtle.select(1)
 					return true
-  print("3")
+				end
 			end
 		end
 		turtle.select(1)
 		return false
 	end
 
 	if not tryRefuel() then
 		print( "Add more fuel to continue." )
 		while not tryRefuel() do
 			sleep(1)
-lol()
+		end
 		print( "Resuming Tunnel." )
 	end
-lol()
+
 
 function farm()
-lol()
+
   refuel()
   turtle.digDown()
-lol()
+
   turtle.placeDown()
   if f < 8 then
-lol()
+   refuel()
    turtle.forward()
   end
  end
  for b=1,7 do
-turtle.turnLeft()
+  refuel()
   turtle.back()
  end
 end
 
 
 
 shell.run("clear")
 print("   Entwickelt von Andre__ & Birog    ")
 print("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
 print("  Brennstoff in Fach 13 bis 16 legen ")
 print("        Samen in Fach 1 legen        ")
 print()
 print("           Weiter mit Enter          ")
 print("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
 go = io.read()
 
 
 function lol()
  refuel()
  turtle.turnLeft()
  shell.run("go forward 2")
  turtle.turnRight()
 end
 
 for e=1,5 do
  refuel()
  farm()
  lol()
 end
 
 farm()
 refuel()
 turtle.turnRight()
 shell.run("go forward 10")
 turtle.turnLeft()
 print(" Fertig mit der Arbeit ")