View difference between Paste ID: bRpbc2BU and nrykBcBw

 --CurrentLuaProgram.lua
 print("Hello World")
 --TurtleTower
 
 --Check arguments for correct formatting
 local args = { ... }
 if #args ~= 1 then      --Check if it's not exactly 3 arguments.
     shell.run("clear")
     print("Invalid number of arguments")
-    if tonumber(args[i]) < 2 then
+
     do return end
 end
-        print("All measurements must be numbers greater than 1")
+
     if tonumber(args[i]) < 5 or tonumber(args[i]) > 9 then
         shell.run("clear")
         print("Invalid arguments")
         print("All measurements must be numbers greater than 5 and less than 9")
         do return end
     end
-length = tonumber(args[1])  --length of tunnel
+
-slotnum = 1
+
 
-    if turtle.getItemCount(slotnum) < 1 then
+
-        slotnum = slotnum + 1
+length = tonumber(args[1])  --length of square
-        turtle.select(slotnum)
+
 --The position of each of the blocks of interest
 -- these blocks are used for different parts of the tower.
 wallslot = 1
 floorslot = 4
-for i = 1, length do
+roofslot = 5
 torchslot = 6
-    -- Add Some Flooring
+ladderslot = 7
 glassslot = 8
-    turtle.placeDown()
+roofslot = 9
 
-    turtle.turnLeft()
+
-    turtle.dig()
+    if turtle.getItemCount(wallslot) < 1 then
-    turtle.forward()
+        slotnum = wallslot + 1
         turtle.select(wallslot)
-    -- Dig Most of the Tunnel
+
-    turtle.placeDown()
+
-    turtle.digUp()
+
-    turtle.up()
+
-    turtle.digUp()
+
-    turtle.up()
+--Finish location (at H)
-    turtle.turnRight()
+-- [ ][w][w][w][ ]
-    turtle.turnRight()
+-- [w][ ][ ][ ][w]
-    turtle.dig()
+-- [d][ ][ ][ ][w]
-    turtle.forward()
+-- [H][ ][ ][ ][w]
-    turtle.digDown()
+-- [ ][w][w][w][ ]
-    turtle.down()
+-- This is where the bot should be after each function
-    turtle.dig()
+-- (top down view) facing up
-    turtle.forward()
+
-    turtle.digUp()
+
-    turtle.digDown()
+
-    turtle.down()
+-- Create the walls of the tower.
 function walls (height)
-    turtle.placeDown()
+	for i = 1, height do
-    turtle.back()
+		if not turtle.detectUp() then
-    turtle.turnLeft()
+			turtle.up()
-    turtle.dig()
+		end
-    turtle.forward()
+		for j = 1, 4 do
 			for k = 1, 3 do
-end
+				if not turtle.detectDown() then
 					checkSlots()
 					turtle.placeDown()
 				end
 				turtle.forward()
 			end
 			turtle.turnRight()
 			turtle.forward()
 		end
 	end
 end
 
 -- Door and windows.
 function openings(height)
 	--get back to floor level
 	turtle.forward()
 	turtle.turnLeft()
 	turtle.back()
 	for i = 1, length do
 		turtle.down()
 	end
 
 	currentHeight = 1
 
 	turtle.dig()
 	turtle.up()
 	turtle.dig()
 	currentHeight = currentHeight + 1
 
 	while currentHeight < height - 3 do
         for i = 1, 4 do
             if i == 4 and currentHeight == 2 then
                 continue
             end
             turtle.back()
             turtle.turnRight()
             turtle.forward()
             turtle.dig()
             turtle.up()
             turtle.dig()
             turtle.down()
         end
         turtle.up()
         turtle.up()
         turtle.up()
         turtle.up()
         currentHeight = currentHeight + 4
     end
 end
 
 walls(length)
 openings(length)