View difference between Paste ID: 0gCW6AMP and hYABpV27

 --[[
 2016 (c) psychedelixx
 Minecraft Spiralstairs (robust)
 2016-10-14
 
-Mines a 3x3 spiral stairs (downwards)
+Mines a spiral stairs (downwards left)
 
 Robust API:
 http://computercraft.info/wiki/Robust_Turtle_API
 
 Usage:
     - use turtle and type "label set <name>"
       (to give your turtle an unique name so it remembers its programs)
-    - type "pastebin get hYABpV27 spiralstairs"
+    - type "pastebin get 0gCW6AMP spiralstairs"
-    - type "spiralstairs <removeCenter 0|1>"
+    - type "spiralstairs <size>"
 - place stairs in slot 14
 - place chests in slot 15
 - place torches in slot 16
 ]]
 stairsSlot = 14
 chestSlot = 15
-centerRemoved = false
+
 
 function placeChestIfFull()
 	empty = 0
-	for slot = 1, 14 do
+	for slot = 1, 13 do
 		if turtle.getItemCount(slot) == 0 then
 			empty = 1
 			break
 		end
 	end
 
 	--[[ if turtle is full, turn around, place chest, move items into it, turn around and continue ]]--
 	if empty == 0 then
 		t.up()
 		t.turnAround()
 		t.dig()
 
 		if turtle.getItemCount(chestSlot) == 0 then
 			print("Please put chests in slot 15 and press enter to continue")
 			read()
 		end
 
 		turtle.select(chestSlot)
 		turtle.place()
 
-		for slot = 1, 14 do
+		for slot = 1, 13 do
 			turtle.select(slot)
 			turtle.drop()
 		end
 
 		t.turnAround()
 		t.down()
 	end
 end
 
 local args = { ... }
 
 if #args ~= 1 then
-	print("Usage: spiralstairs <removeCenter 0|1>")
+	print("Usage: spiralstairs <size>")
 	print("place stairs in slot 14")
 	print("place chests in slot 15")
 	print("place torches in slot 16")
 	error()
 end
-if tonumber(args[1]) == 1 then
+
-	removeCenter = true
+
-else
+
-	removeCenter = false
+	if (x+1)%13 == 0 and turtle.getItemCount(torchSlot) > 0 then
 		oldSlot = turtle.getSelectedSlot()
 
-function removeCenterIfNeeded(x)
+
 		t.place(torchSlot)
-    if x%2 == 1 and removeCenter and not centerRemoved then
+
-        t.left()
+
-        t.dig()
+
-        t.right()
+
 end
-		centerRemoved = true
+
-    end
+
 print("Let's go!")
 print("Mining spiral stairs...")
 
 if turtle.getItemCount(chestSlot) == 0 then
-	if (x+1)%14 == 0 and turtle.getItemCount(torchSlot) > 0 then
+
 	print("Warning: no chests found in slot 15. Press enter to continue")
 	read()
 end
 
 if turtle.getItemCount(torchSlot) == 0 then
 	print("")
 	print("Warning: no torches found in slot 16. Press enter to continue")
 	read()
 end
 
 x = 0
 done = false
 
 repeat
 	t.dig()
 	t.forward()
 	placeChestIfFull()
 
     t.digUp()
     t.up()
     t.placeDown(stairsSlot)
 
 	x = x + 1
 
 	placeTorchIfNeeded(x)
 
 	if x%(tonumber(args[1])-1) == 0 then
 		t.right()
 	end
-t.digDown()
+