View difference between Paste ID: G53ary30 and t3VviwYh

 --TODO : 	make check for slot 1 being empty
 --			create exit for when chest is full
 
 
 --Load the saved Turtle state from disk if available, if not set to 0
 function loadState()
 	if fs.exists("xpTurtleState") then
 		local file = fs.open("xpTurtleState","r")
 		data = file.readAll()
 		file.close()
 		data=tonumber(data)
 		moveState=data
 	else
 		print("debug -- no xpTurtleState found, setting movement state to 0\n")
 		moveState = 0
 	end
 end
 
 -- Save the current state to disk
 function saveState(a)
 	local file = fs.open("xpTurtleState","w")
 	file.write(a)
 	file.close()
 --	io.write(string.format("debug -- wrote %s to file\n",a))
 
 end
 
 -- Check where the turtle is right now, and it it isn't at block 0, move there
 function moveToStart()
 	loadState()
 --	io.write(string.format("debug -- Moving %s blocks to starting point\n", moveState))
 	if moveState~=nil then
 		printStatus("moving to start", getLvl())
 		moveForward(moveState)
 	end
 end
 
 -- Move forward with checking for blockage and save the move state
 function moveForward(nDistance)
 	printStatus("moving to start", getLvl())
 --	print("moveForward nDistance is  ", nDistance)
 	while nDistance > 0 do
 		if turtle.forward() then
 			nDistance=nDistance-1
 			moveState = moveState -1
 			saveState(moveState)
 		else
 			sleep(0.5)
 		end
 	end
 end
 
 -- Move back with checking for blockage and save the move state
 function moveBack(nDistance)
 	while nDistance > 0 do
 		printStatus("moving to enchant area", curLev)
 --		print("moveBack () nDistance is  ", nDistance)
 		if turtle.back() then
 			nDistance=nDistance-1
 			moveState = moveState +1
 			saveState(moveState)
 		else
 			sleep(0.5)
 		end
 	end
 end
 
 
--- check if there's enough fuel, if not refuel from slot 16. If no fuel available, exit.
+
-function checkFuel()
+
-	if turtle.getFuelLevel()<20 then
+
-		if	turtle.getItemCount(16)>=1 then
+
-			turtle.select(16)
+
-			turtle.refuel(1)
+
 end
-			exitMsg(1)
+
 -- Check if nLvl(default=30) levels have been reached, if not wait, if yes, return true.
 function checkLevel(nLvl)
 	getLvl()
 	if curLev<nLvl then
 		printStatus("gathering XP", curLev)
 		return false
 	else
 		printStatus("moving to enchant area", getLvl())
 		return true
 	end
 
 end
 
 -- Look for items to enchant in slots 2 through 14, if there are none, default to findBooks()
 function getItems()
 	for i=2,14 do
 		if turtle.getItemCount(i)>0 then
 			turtle.select(i)
 			turtle.transferTo(1,1)
 			turtle.select(1)
 			return true
 		end
 	end
 --		print("no items found, trying to find books")
 	if findBook() then
 	--		print("Books found")
 		return true
 	else
 		return false
 	end
 
 end
 
 -- Get books from inventory slot 15 and put 1 in slot 1, returning true, if not return false
 function findBook()
 	if turtle.getItemCount(15)>=1 then
 		turtle.select(15)
 		turtle.transferTo(1,1)
 		turtle.select(1)
 		return true
 	else
 		return false
 	end
 end
 
 -- enchant the book in slot one and drop it into the chest underneath the turtle
 function enchantBook(nLvl)
 	if m.enchant(nLvl) then
 		turtle.dropDown()
 	else
 		error("Unexpected error while trying to enchant")
 	end
 
 end
 
 -- End program with a message
 
 function exitMsg(exitNr)
 	if exitNr == 1 then exitStr="Out of fuel. Place more fuel in slot 16 and restart the program"
 	elseif exitNr == 2 then exitStr="No more items or books"
 --	elseif exitNr == 3 then exitStr=""
 --	elseif exitNr == 4 then exitStr=""
 --	elseif exitNr == then exitStr=""
 
 	end
 	term.clear()
 	term.setCursorPos(2,2)
 	sleep(0.5)
 	print(exitStr)
 	run.state="end"
 end
 
 
 
 function printIntro()
 	term.clear()
 	print("---------------------------------------")
 	print("------- XPturtle 0.2 by Gili710 -------")
 	print("---------------------------------------")
 	print()
 	print("This turtle will automatically enchant items in its inventory")
 	print("Place any items in slots 2 through 14")
 	print("Place some books in slot 15.")
 	print("Place some fuel in slot 16")
 	print("Press any key to start")
 	print()
 
 end
 
 function printStatus(curTask, curLvl)
 	term.clear()
 	term.setCursorPos(1,1)
 	print("------- XPturtle 0.2 by Gili710 -------")
 	term.setCursorPos(2,4)
 	io.write(string.format("Current Task: %s", curTask))
 	term.setCursorPos(2,6)
 	io.write(string.format("Current Level: %s", curLvl))
 end
 
 
 --INIT
 m=peripheral.wrap("right")
 m.setAutoCollect(true)
 nLvl=30
 run = {}
 run.state="running"
 screenw, screenh = term.getSize()
 
 -- Main Program
 
 printIntro()
 os.pullEvent()
 if run.state=="running" then
 	moveToStart()
 end
 
 
 
 -- start main loop
 while run.state=="running" do
 	while not checkLevel(nLvl) do
 		sleep(1)
 
-checkFuel()
+
 
 	loadState()
 
 	--	Extra safety here
 	while moveState ~= 5 do
 		moveToStart()
 		moveBack(5)
 	end
 	printStatus("enchanting", getLvl())
 	sleep(2)
 	if getItems() then
 		enchantBook(nLvl)
-	checkFuel()
+
 		moveForward(5)
 	else
 		exitMsg(2)
 	end
 end