View difference between Paste ID: CDd0epE4 and mHMYWxeC

 local top = 46
 local bottom = 7
 local width = 63
 
-local xSep = 2
+
-local ySep = 4
+
 local torchCounter = 0
 
 local xStartRow = 4
 local xSpacing = 6
 local yStartRow = {8, 3}
 local ySpacing = 9
 
 local function refuel()
     if turtle.getFuelLevel() == 0 then
         local prev = turtle.getSelectedSlot()
         turtle.select(1)
         if not turtle.refuel(1) then
             print('Need more fuel')
             while not turtle.refuel(1) do
                 sleep(1)
             end
         end
         turtle.select(prev)
     end
 end
 
 local function advance()
     if turtle.getSelectedSlot() == 16 then
-                if turtle.getItemCount(n) > 0 and turtle.getItemDetail(n).name ~= 'chisel:marble' then
+
         local empty = true
         while empty do
             for n=3, 16 do
                 if turtle.getItemCount(n) > 0 and turtle.getItemDetail(n).name == 'chisel:marble' then
                     empty = false
                     turtle.select(n)
 					return
                 end
            	end
 			sleep(5)
         end
    	else
         turtle.select(turtle.getSelectedSlot() + 1)
    	end
 end
 
 local function replace()
     while turtle.detect() do
         turtle.dig()
 		sleep(.5)
     end
 	local data = turtle.getItemDetail()
-
+
 		advance()
     end
     turtle.place()
 end
 
 local function returnToFloor()
     turtle.turnRight()
 	while not turtle.forward() do
 		turtle.dig()
 		sleep(.5)
 	end
     turtle.turnLeft()
-	if x % 6 == xSep then
+
-		if x % 2 == 0 then
+
-			print(y)
+
-			if (y-1) % 6 == ySep then
+	print(torchCounter)
 	if x%xSpacing == xStartRow then
-				turtle.select(torches)
+		if torchCounter % 2 == 0 then
-				if not turtle.placeUp() then
+			if y%ySpacing == yStartRow[1] then
-					print 'Need more torches'
+
-					while not turtle.placeUp() do
+                turtle.select(torches)
-						sleep(5)
+                if not turtle.placeUp() then
-					end
+                    print 'Need more torches'
                     while not turtle.placeUp() do
-				turtle.select(prev)
+                        sleep(5)
                     end
                 end
-			if (y-1) % 6 == ySep then
+                turtle.select(prev)
 				torchCounter = torchCounter + 1
-				turtle.select(torches)
+
-				if not turtle.placeUp() then
+
-					print 'Need more torches'
+			if y%ySpacing == yStartRow[2] then
-					while not turtle.placeUp() do
+
-						sleep(5)
+                turtle.select(torches)
-					end
+                if not turtle.placeUp() then
                     print 'Need more torches'
-				turtle.select(prev)
+                    while not turtle.placeUp() do
                         sleep(5)
                     end
                 end
                 turtle.select(prev)
 				torchCounter = torchCounter + 1
 			end
 		end
-	 local success, data = turtle.inspect()
+
 end
 
 turtle.select(3)
 for i = 1, width, 1 do
-        else
+	local success, data = turtle.inspect()
-            replace()
+	if success then
 		if data.name ~= 'chisel:marble' then
-    for j = bottom, top - 2, 1 do
+
 		end
 	else
 		replace()
 	end
 
     for j = bottom + 1, top - 1, 1 do
         refuel()
 		if i % 2 == 1 then
 			while not turtle.up() do
 				if turtle.detect() then
 					turtle.digUp()
 				elseif turtle.attack() then
 				else
 					sleep(1)
 				end
 			end
 		else
 			while not turtle.down() do
 				if turtle.detect() then
 					turtle.digDown()
 				elseif turtle.attack() then
 				else
 					sleep(1)
 				end
 			end
 		end
         local success, data = turtle.inspect()
         if success then
             if data.name ~= 'chisel:marble' then
                 replace()
 			end
 		else
 			replace()
         end
 		checkForTorch(i,j)
     end
 	torchCounter = 0
     returnToFloor()
 end