Added downgrade info

changelog.txt

@@ -1,6 +1,25 @@
 ---------------------------------------------------------------------------------------------------
+Version: 0.18.2
+Date: 22. 2. 2020
+  Changes:
+    - Matched changelog file format to what Factorio expects
+
+  Info:
+    - Also downgraded to Factorio 0.17, see below
+---------------------------------------------------------------------------------------------------
+Version: 0.18.1
+Date: 22. 2. 2020
+  Bugfixes:
+    - Added missing entity check (caused game crash on inserter placement without adjacent entity)
+---------------------------------------------------------------------------------------------------
 Version: 0.18.0
 Date: 22. 2. 2020
-  Changes:
-    - Initial release
+  Features:
+    - Added automatic setting of filter on inserter placement
+    - Added player mod setting to control mod behaviour
+---------------------------------------------------------------------------------------------------
+Version: 0.17.0
+Date: 22. 2. 2020
+  Info:
+    - Retroactive downgrade
 ---------------------------------------------------------------------------------------------------

control.lua

@@ -13,7 +13,7 @@ end
 
 local function get_items_by_filter(inserter,inventory)
 	local items = {}
-	for slot = 1,#inventory,1 do
+	for slot = 1,#inventory do
 		if #items < inserter.filter_slot_count and inventory.get_filter(slot) then
 			items[#items+1] = inventory.get_filter(slot)
 		end
@@ -24,16 +24,19 @@ end
 local function on_built_entity(event)
 	local inserter = event.created_entity
 	if inserter.filter_slot_count then
-		local inventory = inserter.surface.find_entities_filtered({position = inserter.pickup_position, limit = 1})[1].get_output_inventory()
-		if inventory then
-			local mode = game.players[event.player_index].mod_settings["Autofilter_Mode"].value
-			if mode == "content" and not inventory.is_empty() then
-				for slot,item in pairs(get_items_by_content(inserter,inventory)) do
-					inserter.set_filter(slot,item)
-				end
-			elseif mode == "filter" and inventory.is_filtered() then
-				for slot,item in pairs(get_items_by_filter(inserter,inventory)) do
-					inserter.set_filter(slot,item)
+		local pickup = inserter.surface.find_entities_filtered({position = inserter.pickup_position, limit = 1})
+		if #pickup > 0 then
+			local inventory = pickup[1].get_output_inventory()
+			if inventory then
+				local mode = game.players[event.player_index].mod_settings["Autofilter_Mode"].value
+				if mode == "content" and not inventory.is_empty() then
+					for slot,item in pairs(get_items_by_content(inserter,inventory)) do
+						inserter.set_filter(slot,item)
+					end
+				elseif mode == "filter" and inventory.is_filtered() then
+					for slot,item in pairs(get_items_by_filter(inserter,inventory)) do
+						inserter.set_filter(slot,item)
+					end
 				end
 			end
 		end

info.json

@@ -1,6 +1,6 @@
 {
 	"name": "Autofilter",
-	"version": "0.18.0",
+	"version": "0.18.2",
 	"title": "Autofilter",
 	"author": "Wyrrrd",
 	"dependencies": ["base >= 0.18.0"],