Merge remote-tracking branch 'upstream/master'

`unified_inventory.is_itemdef_listable` already prevents such items
being listed. They are not needed, thus removing them from the
categories in the first place does make sense.

Co-authored-by: SmallJoker <mk939@ymail.com>

.luacheckrc

@@ -10,6 +10,7 @@ read_globals = {
 	string = {fields = {"split", "trim"}},
 	table = {fields = {"copy", "getn"}},
 
+	"dump",
 	"minetest", "vector",
 	"ItemStack", "datastorage",
 

README.md

@@ -71,6 +71,9 @@ From http://www.clker.com (Public Domain, CC-BY-4.0):
   * [`ui_pencil_icon.pnc`](http://www.clker.com/clipart-2256.html)
   * [`ui_waypoint_set_icon.png`](http://www.clker.com/clipart-larger-flag.html)
 
+From https://www.svgrepo.com (CC-BY)
+  * [`ui_teleport.png`](https://www.svgrepo.com/svg/321565/teleport)
+
 Everaldo Coelho (YellowIcon) (LGPL v2.1+):
 
   * [`ui_craftguide_icon.png` / `ui_craft_icon.png`](http://commons.wikimedia.org/wiki/File:Advancedsettings.png)
@@ -102,3 +105,16 @@ Other files from Wikimedia Commons:
 RealBadAngel: (CC-BY-4.0)
 
   * Everything else.
+
+
+## Sounds
+
+ * [`bell.ogg`](https://freesound.org/people/bennstir/sounds/81072/) by bennstir, CC 4.0
+ * [`electricity.ogg`](https://freesound.org/people/Halleck/sounds/19486/) by Halleck, CC 4.0 (cut)
+ * [`pageflip1.ogg`](https://freesound.org/people/themfish/sounds/45823/) by themfish, CC 4.0 (cut, slowed down)
+ * `pageflip2.ogg` (derived from `pageflip1.ogg`)
+ * [`trash.ogg`](https://freesound.org/people/OwlStorm/sounds/151231/) by OwlStorm, CC 0 (speed up)
+ * [`trash_all.ogg`](https://freesound.org/people/abel_K/sounds/68280/) by abel_K, Sampling Plus 1.0 (speed up)
+ * [`ui_click.ogg`](https://freesound.org/people/lartti/sounds/527569/) by lartti, CC 0 (cut)
+ * [`ui_morning.ogg`](https://freesound.org/people/InspectorJ/sounds/439472/) by InspectorJ, CC 4.0
+ * [`ui_owl.ogg`](https://freesound.org/people/manda_g/sounds/54987/) by manda_g, Sampling Plus 1.0 (cut)

api.lua

@@ -2,48 +2,61 @@ local S = minetest.get_translator("unified_inventory")
 local F = minetest.formspec_escape
 local ui = unified_inventory
 
+local function is_recipe_craftable(recipe)
+	-- Ensure the ingedients exist
+	for _, itemname in pairs(recipe.items) do
+		local groups = string.find(itemname, "group:")
+		if groups then
+			if not ui.get_group_item(string.sub(groups, 8)).item then
+				return false
+			end
+		else
+			-- Possibly an item
+			local itemname_cleaned = ItemStack(itemname):get_name()
+			if not minetest.registered_items[itemname_cleaned]
+					or minetest.get_item_group(itemname_cleaned, "not_in_craft_guide") ~= 0 then
+				return false
+			end
+		end
+	end
+	return true
+end
+
 -- Create detached creative inventory after loading all mods
 minetest.after(0.01, function()
 	local rev_aliases = {}
-	for source, target in pairs(minetest.registered_aliases) do
+	for original, newname in pairs(minetest.registered_aliases) do
-		if not rev_aliases[target] then rev_aliases[target] = {} end
+		if not rev_aliases[newname] then
-		table.insert(rev_aliases[target], source)
+			rev_aliases[newname] = {}
 		end
+		table.insert(rev_aliases[newname], original)
+	end
+
+	-- Filtered item list
 	ui.items_list = {}
 	for name, def in pairs(minetest.registered_items) do
-		if (not def.groups.not_in_creative_inventory or
+		if ui.is_itemdef_listable(def) then
-		   def.groups.not_in_creative_inventory == 0) and
-		   def.description and def.description ~= "" then
 			table.insert(ui.items_list, name)
+
+			-- Alias processing: Find recipes that belong to the current item name
 			local all_names = rev_aliases[name] or {}
 			table.insert(all_names, name)
-			for _, player_name in ipairs(all_names) do
+			for _, itemname in ipairs(all_names) do
-				local recipes = minetest.get_all_craft_recipes(player_name)
+				local recipes = minetest.get_all_craft_recipes(itemname)
-				if recipes then
+				for _, recipe in ipairs(recipes or {}) do
-					for _, recipe in ipairs(recipes) do
+					if is_recipe_craftable(recipe) then
-
-						local unknowns
-
-						for _,chk in pairs(recipe.items) do
-							local groupchk = string.find(chk, "group:")
-							if (not groupchk and not minetest.registered_items[chk])
-							  or (groupchk and not ui.get_group_item(string.gsub(chk, "group:", "")).item)
-							  or minetest.get_item_group(chk, "not_in_craft_guide") ~= 0 then
-								unknowns = true
-							end
-						end
-
-						if not unknowns then
 						ui.register_craft(recipe)
 					end
 				end
 			end
 		end
 	end
-	end
+
 	table.sort(ui.items_list)
 	ui.items_list_size = #ui.items_list
-	print("Unified Inventory. inventory size: "..ui.items_list_size)
+	print("Unified Inventory. Inventory size: "..ui.items_list_size)
+
+	-- Analyse dropped items -> custom "digging" recipes
 	for _, name in ipairs(ui.items_list) do
 		local def = minetest.registered_items[name]
 		-- Simple drops
@@ -133,33 +146,82 @@ minetest.after(0.01, function()
 			end
 		end
 	end
-	for _, recipes in pairs(ui.crafts_for.recipe) do
+
+	-- Step 1: Initialize cache for looking up groups
+	unified_inventory.init_matching_cache()
+
+	-- Step 2: Find all matching items for the given spec (groups)
+	local get_matching_spec_items = unified_inventory.get_matching_items
+
+	for outputitemname, recipes in pairs(ui.crafts_for.recipe) do
+		-- List of crafts that return this item string (variable "_")
+
+		-- Problem: The group cache must be initialized after all mods finished loading
+		-- thus, invalid recipes might be indexed. Hence perform filtering with `new_recipe_list`
+		local new_recipe_list = {}
 		for _, recipe in ipairs(recipes) do
 			local ingredient_items = {}
 			for _, spec in pairs(recipe.items) do
-				local matches_spec = ui.canonical_item_spec_matcher(spec)
+				-- Get items that fit into this spec (group or item name)
-				for _, name in ipairs(ui.items_list) do
+				local specname = ItemStack(spec):get_name()
-					if matches_spec(name) then
+				for item_name, _ in pairs(get_matching_spec_items(specname)) do
-						ingredient_items[name] = true
+					ingredient_items[item_name] = true
-					end
 				end
 			end
 			for name, _ in pairs(ingredient_items) do
-				if ui.crafts_for.usage[name] == nil then
+				if not ui.crafts_for.usage[name] then
 					ui.crafts_for.usage[name] = {}
 				end
 				table.insert(ui.crafts_for.usage[name], recipe)
 			end
+
+			if next(ingredient_items) then
+				-- There's at least one known ingredient: mark as good recipe
+				-- PS: What whatll be done about partially incomplete recipes?
+				table.insert(new_recipe_list, recipe)
 			end
 		end
+		ui.crafts_for.recipe[outputitemname] = new_recipe_list
+	end
+
+	-- Remove unknown items from all categories
+	local total_removed = 0
+	for cat_name, cat_def in pairs(ui.registered_category_items) do
+		for itemname, _ in pairs(cat_def) do
+			local idef = minetest.registered_items[itemname]
+			if not idef then
+				total_removed = total_removed + 1
+				--[[
+				-- For analysis
+				minetest.log("warning", "[unified_inventory] Removed item '"
+					.. itemname .. "' from category '" .. cat_name
+					.. "'. Reason: item not registered")
+				]]
+				cat_def[itemname] = nil
+			elseif not ui.is_itemdef_listable(idef) then
+				total_removed = total_removed + 1
+				--[[
+				-- For analysis
+				minetest.log("warning", "[unified_inventory] Removed item '"
+					.. itemname .. "' from category '" .. cat_name
+					.. "'. Reason: item is in 'not_in_creative_inventory' group")
+				]]
+				cat_def[itemname] = nil
+			end
+		end
+	end
+	if total_removed > 0 then
+		minetest.log("info", "[unified_inventory] Removed " .. total_removed ..
+			" items from the categories.")
+	end
 
 	for _, callback in ipairs(ui.initialized_callbacks) do
 		callback()
 	end
 end)
 
+---------------- Home API ----------------
 
--- load_home
 local function load_home()
 	local input = io.open(ui.home_filename, "r")
 	if not input then
@@ -176,6 +238,7 @@ local function load_home()
 	end
 	io.close(input)
 end
+
 load_home()
 
 function ui.set_home(player, pos)
@@ -204,7 +267,8 @@ function ui.go_home(player)
 	return false
 end
 
--- register_craft
+---------------- Crafting API ----------------
+
 function ui.register_craft(options)
 	if not options.output then
 		return
@@ -227,14 +291,12 @@ function ui.register_craft(options)
 	end
 end
 
-
 local craft_type_defaults = {
 	width = 3,
 	height = 3,
 	uses_crafting_grid = false,
 }
 
-
 function ui.craft_type_defaults(name, options)
 	if not options.description then
 		options.description = name
@@ -245,8 +307,7 @@ end
 
 
 function ui.register_craft_type(name, options)
-	ui.registered_craft_types[name] =
+	ui.registered_craft_types[name] = ui.craft_type_defaults(name, options)
-			ui.craft_type_defaults(name, options)
 end
 
 
@@ -303,6 +364,8 @@ ui.register_craft_type("digging_chance", {
 	height = 1,
 })
 
+---------------- GUI registrations ----------------
+
 function ui.register_page(name, def)
 	ui.pages[name] = def
 end
@@ -318,6 +381,8 @@ function ui.register_button(name, def)
 	table.insert(ui.buttons, def)
 end
 
+---------------- Callback registrations ----------------
+
 function ui.register_on_initialized(callback)
 	if type(callback) ~= "function" then
 		error(("Initialized callback must be a function, %s given."):format(type(callback)))
@@ -332,6 +397,8 @@ function ui.register_on_craft_registered(callback)
 	table.insert(ui.craft_registered_callbacks, callback)
 end
 
+---------------- List getters ----------------
+
 function ui.get_recipe_list(output)
 	return ui.crafts_for.recipe[output]
 end
@@ -344,11 +411,15 @@ function ui.get_registered_outputs()
 	return outputs
 end
 
+---------------- Player utilities ----------------
+
 function ui.is_creative(playername)
 	return minetest.check_player_privs(playername, {creative=true})
 		or minetest.settings:get_bool("creative_mode")
 end
 
+---------------- Formspec helpers ----------------
+
 function ui.single_slot(xpos, ypos, bright)
 	return string.format("background9[%f,%f;%f,%f;ui_single_slot%s.png;false;16]",
 	xpos, ypos, ui.imgscale, ui.imgscale, (bright and "_bright" or "") )

bags.lua

@@ -10,25 +10,26 @@ local F = minetest.formspec_escape
 local ui = unified_inventory
 
 ui.register_page("bags", {
-	get_formspec = function(player)
+	get_formspec = function(player, perplayer_formspec)
 		local player_name = player:get_player_name()
-		return { formspec = table.concat({
+		local std_inv_x = perplayer_formspec.std_inv_x
-			ui.style_full.standard_inv_bg,
+		local formspec = {
-			ui.single_slot(0.925, 1.5),
+			perplayer_formspec.standard_inv_bg,
-			ui.single_slot(3.425, 1.5),
+			"label[", perplayer_formspec.form_header_x, ",",
-			ui.single_slot(5.925, 1.5),
+				perplayer_formspec.form_header_y, ";", F(S("Bags")), "]",
-			ui.single_slot(8.425, 1.5),
-			"label["..ui.style_full.form_header_x..","..ui.style_full.form_header_y..";" .. F(S("Bags")) .. "]",
-			"button[0.6125,2.75;1.875,0.75;bag1;" .. F(S("Bag @1", 1)) .. "]",
-			"button[3.1125,2.75;1.875,0.75;bag2;" .. F(S("Bag @1", 2)) .. "]",
-			"button[5.6125,2.75;1.875,0.75;bag3;" .. F(S("Bag @1", 3)) .. "]",
-			"button[8.1125,2.75;1.875,0.75;bag4;" .. F(S("Bag @1", 4)) .. "]",
 			"listcolors[#00000000;#00000000]",
-			"list[detached:" .. F(player_name) .. "_bags;bag1;1.075,1.65;1,1;]",
+		}
-			"list[detached:" .. F(player_name) .. "_bags;bag2;3.575,1.65;1,1;]",
+
-			"list[detached:" .. F(player_name) .. "_bags;bag3;6.075,1.65;1,1;]",
+		for i = 1, 4 do
-			"list[detached:" .. F(player_name) .. "_bags;bag4;8.575,1.65;1,1;]"
+			local x = std_inv_x + i * 2.5
-		}) }
+			formspec[#formspec + 1] = ui.single_slot(x - 1.875, 1.5)
+			formspec[#formspec + 1] = string.format("list[detached:%s_bags;bag%i;%.3f,1.65;1,1;]",
+				F(player_name), i, x - 1.725)
+			formspec[#formspec + 1] = string.format("button[%.4f,2.75;1.875,0.75;bag%i;%s]",
+				x - 2.1875, i, F(S("Bag @1", i)))
+		end
+
+		return { formspec = table.concat(formspec) }
 	end,
 })
 
@@ -36,7 +37,6 @@ ui.register_button("bags", {
 	type = "image",
 	image = "ui_bags_icon.png",
 	tooltip = S("Bags"),
-	hide_lite=true
 })
 
 local function get_player_bag_stack(player, i)
@@ -48,23 +48,38 @@ end
 
 for bag_i = 1, 4 do
 	ui.register_page("bag" .. bag_i, {
-		get_formspec = function(player)
+		get_formspec = function(player, perplayer_formspec)
 			local stack = get_player_bag_stack(player, bag_i)
 			local image = stack:get_definition().inventory_image
 			local slots = stack:get_definition().groups.bagslots
+			local std_inv_x = perplayer_formspec.std_inv_x
+			local lite_mode = perplayer_formspec.is_lite_mode
+
+			local bag_inv_y, header_x, header_y = 1.5, 0.3, 0.65
+			if lite_mode then
+				bag_inv_y = 0.5
+				header_x = perplayer_formspec.form_header_x
+				header_y = perplayer_formspec.form_header_y
+			end
 
 			local formspec = {
-				ui.style_full.standard_inv_bg,
+				perplayer_formspec.standard_inv_bg,
-				ui.make_inv_img_grid(0.3, 1.5, 8, slots/8),
+				ui.make_inv_img_grid(std_inv_x, bag_inv_y, 8, slots/8),
-				"image[9.2,0.4;1,1;" .. image .. "]",
+				"label[", header_x, ",", header_y, ";", F(S("Bag @1", bag_i)), "]",
-				"label[0.3,0.65;" .. F(S("Bag @1", bag_i)) .. "]",
 				"listcolors[#00000000;#00000000]",
 				"listring[current_player;main]",
 				string.format("list[current_player;bag%icontents;%f,%f;8,3;]",
-				    bag_i, 0.3 + ui.list_img_offset, 1.5 + ui.list_img_offset),
+				    bag_i, std_inv_x + ui.list_img_offset, bag_inv_y + ui.list_img_offset),
-				"listring[current_name;bag" .. bag_i .. "contents]",
+				"listring[current_name;bag", bag_i, "contents]",
 			}
+
+			if lite_mode then
+				return { formspec = table.concat(formspec) }
+			end
+
 			local n = #formspec + 1
+			formspec[n] = "image[" .. std_inv_x + 8.9 .. ",0.4;1,1;" .. image .. "]"
+			n = n + 1
 
 			local player_name = player:get_player_name() -- For if statement.
 			if ui.trash_enabled
@@ -114,6 +129,8 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	end
 end)
 
+-- Player slots are preserved when unified_inventory is disabled. Do not allow modification.
+-- Fix: use a detached inventory and store the data separately.
 local function save_bags_metadata(player, bags_inv)
 	local is_empty = true
 	local bags = {}
@@ -127,7 +144,7 @@ local function save_bags_metadata(player, bags_inv)
 	end
 	local meta = player:get_meta()
 	if is_empty then
-		meta:set_string("unified_inventory:bags", nil)
+		meta:set_string("unified_inventory:bags", "")
 	else
 		meta:set_string("unified_inventory:bags",
 			minetest.serialize(bags))
@@ -163,7 +180,7 @@ local function load_bags_metadata(player, bags_inv)
 		save_bags_metadata(player, bags_inv)
 	end
 
-	-- Clean up deprecated garbage after saving
+	-- Legacy: Clean up old player lists
 	for i = 1, 4 do
 		local bag = "bag" .. i
 		player_inv:set_size(bag, 0)
@@ -173,45 +190,28 @@ end
 minetest.register_on_joinplayer(function(player)
 	local player_name = player:get_player_name()
 	local bags_inv = minetest.create_detached_inventory(player_name .. "_bags", {
+		allow_put = function(inv, listname, index, stack, player)
+			local new_slots = stack:get_definition().groups.bagslots
+			if not new_slots then
+				return 0 -- ItemStack is not a bag.
+			end
+
+			-- The execution order of `allow_put`/`allow_take` is not defined.
+			-- We do not know the replacement ItemStack if the items are swapped.
+			-- Hence, bag slot upgrades and downgrades are not possible with the
+			-- current API.
+
+			if not player:get_inventory():is_empty(listname .. "contents") then
+				-- Legacy: in case `allow_take` is not executed on old Minetest versions.
+				return 0
+			end
+			return 1
+		end,
 		on_put = function(inv, listname, index, stack, player)
 			player:get_inventory():set_size(listname .. "contents",
 					stack:get_definition().groups.bagslots)
 			save_bags_metadata(player, inv)
 		end,
-		allow_put = function(inv, listname, index, stack, player)
-			local new_slots = stack:get_definition().groups.bagslots
-			if not new_slots then
-				return 0
-			end
-			local player_inv = player:get_inventory()
-			local old_slots = player_inv:get_size(listname .. "contents")
-
-			if new_slots >= old_slots then
-				return 1
-			end
-
-			-- using a smaller bag, make sure it fits
-			local old_list = player_inv:get_list(listname .. "contents")
-			local new_list = {}
-			local slots_used = 0
-			local use_new_list = false
-
-			for i, v in ipairs(old_list) do
-				if v and not v:is_empty() then
-					slots_used = slots_used + 1
-					use_new_list = i > new_slots
-					new_list[slots_used] = v
-				end
-			end
-			if new_slots >= slots_used then
-				if use_new_list then
-					player_inv:set_list(listname .. "contents", new_list)
-				end
-				return 1
-			end
-			-- New bag is smaller: Disallow inserting
-			return 0
-		end,
 		allow_take = function(inv, listname, index, stack, player)
 			if player:get_inventory():is_empty(listname .. "contents") then
 				return stack:get_count()
@@ -221,6 +221,11 @@ minetest.register_on_joinplayer(function(player)
 		on_take = function(inv, listname, index, stack, player)
 			player:get_inventory():set_size(listname .. "contents", 0)
 			save_bags_metadata(player, inv)
+			if listname == ui.current_page[player:get_player_name()] then
+				-- Bag is currently open: avoid follow-up issues by navigating back
+				-- Trick: the list name is the same as the registered page name
+				ui.set_inventory_formspec(player, "bags")
+			end
 		end,
 		allow_move = function()
 			return 0
@@ -230,6 +235,20 @@ minetest.register_on_joinplayer(function(player)
 	load_bags_metadata(player, bags_inv)
 end)
 
+
+minetest.register_allow_player_inventory_action(function(player, action, inventory, info)
+	-- From detached inventory -> player inventory: put & take callbacks
+	if action ~= "put" or not info.listname:find("bag%dcontents") then
+		return
+	end
+	if info.stack:get_definition().groups.bagslots then
+		-- Problem 1: empty bags could be moved into their own slots
+		-- Problem 2: cannot reliably keep track of ItemStack ownership due to
+		--> Disallow all external bag movements into this list
+		return 0
+	end
+end)
+
 -- register bag tools
 minetest.register_tool("unified_inventory:bag_small", {
 	description = S("Small Bag"),

callbacks.lua

@@ -1,3 +1,5 @@
+local ui = unified_inventory
+
 local function default_refill(stack)
 	stack:set_count(stack:get_stack_max())
 	local itemdef = minetest.registered_items[stack:get_name()]
@@ -12,19 +14,17 @@ end
 minetest.register_on_joinplayer(function(player)
 	local player_name = player:get_player_name()
 	unified_inventory.players[player_name] = {}
-	unified_inventory.current_index[player_name] = 1
+	unified_inventory.current_index[player_name] = 1 -- Item (~page) index
 	unified_inventory.filtered_items_list[player_name] =
 		unified_inventory.items_list
 	unified_inventory.activefilter[player_name] = ""
 	unified_inventory.active_search_direction[player_name] = "nochange"
-	unified_inventory.apply_filter(player, "", "nochange")
 	unified_inventory.current_searchbox[player_name] = ""
 	unified_inventory.current_category[player_name] = "all"
 	unified_inventory.current_category_scroll[player_name] = 0
 	unified_inventory.alternate[player_name] = 1
 	unified_inventory.current_item[player_name] = nil
 	unified_inventory.current_craft_direction[player_name] = "recipe"
-	unified_inventory.set_inventory_formspec(player, unified_inventory.default)
 
 	-- Refill slot
 	local refill = minetest.create_detached_inventory(player_name.."refill", {
@@ -46,30 +46,58 @@ minetest.register_on_joinplayer(function(player)
 	refill:set_size("main", 1)
 end)
 
+minetest.register_on_mods_loaded(function()
+       minetest.register_on_joinplayer(function(player)
+               -- After everything is initialized, set up the formspec
+               ui.apply_filter(player, "", "nochange")
+               ui.set_inventory_formspec(player, unified_inventory.default)
+       end)
+end)
+
 local function apply_new_filter(player, search_text, new_dir)
 	local player_name = player:get_player_name()
-	minetest.sound_play("click", {to_player=player_name, gain = 0.1})
+
-	unified_inventory.apply_filter(player, search_text, new_dir)
+	minetest.sound_play("ui_click", {to_player=player_name, gain = 0.1})
-	unified_inventory.current_searchbox[player_name] = search_text
+	ui.apply_filter(player, search_text, new_dir)
-	unified_inventory.set_inventory_formspec(player,
+	ui.current_searchbox[player_name] = search_text
-			unified_inventory.current_page[player_name])
+	ui.set_inventory_formspec(player, ui.current_page[player_name])
+end
+
+-- Search box handling
+local function receive_fields_searchbox(player, formname, fields)
+	local player_name = player:get_player_name()
+
+	-- always take new search text, even if not searching on it yet
+	if fields.searchbox and fields.searchbox ~= ui.current_searchbox[player_name] then
+		ui.current_searchbox[player_name] = fields.searchbox
+	end
+
+	if fields.searchbutton
+			or fields.key_enter_field == "searchbox" then
+
+		if ui.current_searchbox[player_name] ~= ui.activefilter[player_name] then
+			ui.apply_filter(player, ui.current_searchbox[player_name], "nochange")
+			ui.set_inventory_formspec(player, ui.current_page[player_name])
+			minetest.sound_play("paperflip2",
+					{to_player=player_name, gain = 1.0})
+		end
+	elseif fields.searchresetbutton then
+		if ui.activefilter[player_name] ~= "" then
+			apply_new_filter(player, "", "nochange")
+		end
+	end
 end
 
 minetest.register_on_player_receive_fields(function(player, formname, fields)
-	local player_name = player:get_player_name()
-
-	local ui_peruser,draw_lite_mode = unified_inventory.get_per_player_formspec(player_name)
-
 	if formname ~= "" then
 		return
 	end
 
-	-- always take new search text, even if not searching on it yet
+	receive_fields_searchbox(player, formname, fields)
-	if fields.searchbox
-	and fields.searchbox ~= unified_inventory.current_searchbox[player_name] then
-		unified_inventory.current_searchbox[player_name] = fields.searchbox
-	end
 
+	local player_name = player:get_player_name()
+
+	local ui_peruser,draw_lite_mode = unified_inventory.get_per_player_formspec(player_name)
 
 	local clicked_category
 	for name, value in pairs(fields) do
@@ -88,19 +116,14 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 				unified_inventory.current_page[player_name])
 	end
 
-	if fields.next_category then
+	if fields.next_category or fields.prev_category then
-		local scroll = math.min(#unified_inventory.category_list-ui_peruser.pagecols, unified_inventory.current_category_scroll[player_name] + 1)
+		local step = fields.next_category and 1 or -1
-		if scroll ~= unified_inventory.current_category_scroll[player_name] then
+		local scroll_old = ui.current_category_scroll[player_name]
-			unified_inventory.current_category_scroll[player_name] = scroll
+		local scroll_new = math.max(0, math.min(#ui.category_list - ui_peruser.pagecols, scroll_old + step))
-			unified_inventory.set_inventory_formspec(player,
+
-					unified_inventory.current_page[player_name])
+		if scroll_old ~= scroll_new then
-		end
+			ui.current_category_scroll[player_name] = scroll_new
-	end
+			ui.set_inventory_formspec(player,
-	if fields.prev_category then
-		local scroll = math.max(0, unified_inventory.current_category_scroll[player_name] - 1)
-		if scroll ~= unified_inventory.current_category_scroll[player_name] then
-			unified_inventory.current_category_scroll[player_name] = scroll
-			unified_inventory.set_inventory_formspec(player,
 					unified_inventory.current_page[player_name])
 		end
 	end
@@ -108,7 +131,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	for i, def in pairs(unified_inventory.buttons) do
 		if fields[def.name] then
 			def.action(player)
-			minetest.sound_play("click",
+			minetest.sound_play("ui_click",
 					{to_player=player_name, gain = 0.1})
 			return
 		end
@@ -173,7 +196,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 		end
 	end
 	if clicked_item then
-		minetest.sound_play("click",
+		minetest.sound_play("ui_click",
 				{to_player=player_name, gain = 0.1})
 		local page = unified_inventory.current_page[player_name]
 		local player_creative = unified_inventory.is_creative(player_name)
@@ -195,22 +218,11 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 		end
 	end
 
-	if fields.searchbutton
-			or fields.key_enter_field == "searchbox" then
-		unified_inventory.apply_filter(player, unified_inventory.current_searchbox[player_name], "nochange")
-		unified_inventory.set_inventory_formspec(player,
-				unified_inventory.current_page[player_name])
-		minetest.sound_play("paperflip2",
-				{to_player=player_name, gain = 1.0})
-	elseif fields.searchresetbutton then
-		apply_new_filter(player, "", "nochange")
-	end
-
 	-- alternate buttons
 	if not (fields.alternate or fields.alternate_prev) then
 		return
 	end
-	minetest.sound_play("click",
+	minetest.sound_play("ui_click",
 			{to_player=player_name, gain = 0.1})
 	local item_name = unified_inventory.current_item[player_name]
 	if not item_name then
@@ -241,11 +253,8 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 			unified_inventory.current_page[player_name])
 end)
 
-if minetest.delete_detached_inventory then
 minetest.register_on_leaveplayer(function(player)
 	local player_name = player:get_player_name()
-		minetest.delete_detached_inventory(player_name.."_bags")
+	minetest.remove_detached_inventory(player_name.."_bags")
-		minetest.delete_detached_inventory(player_name.."craftrecipe")
+	minetest.remove_detached_inventory(player_name.."refill")
-		minetest.delete_detached_inventory(player_name.."refill")
 end)
-end

category.lua

@@ -96,6 +96,9 @@ function unified_inventory.register_category(category_name, config)
 	end
 	update_category_list()
 end
+
+-- TODO: Mark these for removal. They are pretty much useless
+
 function unified_inventory.set_category_symbol(category_name, symbol)
 	ensure_category_exists(category_name)
 	unified_inventory.registered_categories[category_name].symbol = symbol
@@ -112,6 +115,11 @@ function unified_inventory.set_category_index(category_name, index)
 	update_category_list()
 end
 function unified_inventory.add_category_item(category_name, item)
+	if type(item) ~= "string" then
+		minetest.log("warning", "[unified_inventory] Cannot register category item: " .. dump(item))
+		return
+	end
+
 	ensure_category_exists(category_name)
 	unified_inventory.registered_category_items[category_name][item] = true
 end

default-categories.lua

@@ -1,4 +1,5 @@
 local S = minetest.get_translator("unified_inventory")
+local ui = unified_inventory
 
 unified_inventory.register_category('plants', {
 	symbol = "flowers:tulip",
@@ -25,10 +26,7 @@ unified_inventory.register_category('lighting', {
 	label = S("Lighting")
 })
 
-
+local function register_automatic_categorization()
-if unified_inventory.automatic_categorization then
-	minetest.register_on_mods_loaded(function()
-
 	-- Add biome nodes to environment category
 	for _,def in pairs(minetest.registered_biomes) do
 		local env_nodes = {
@@ -41,18 +39,33 @@ if unified_inventory.automatic_categorization then
 		end
 	end
 
-		-- Add minable ores to minerals and everything else (pockets of stone & sand variations) to environment
+	-- Preparation for ore registration: find all possible drops (digging)
-		for _,item in  pairs(minetest.registered_ores) do
+	local possible_node_dig_drops = {
-			if item.ore_type == "scatter" then
+		-- ["default:stone_with_coal"] = { "default:coal_lump", "mymod:raregem" }
-				local drop = minetest.registered_nodes[item.ore].drop
+		-- Ores may be contained multiple times, depending on drop chances.
-				if drop and drop ~= "" then
+	}
-					unified_inventory.add_category_item('minerals', item.ore)
+	for itemname, recipes in pairs(ui.crafts_for.usage) do
-					unified_inventory.add_category_item('minerals', drop)
+		for _, recipe in ipairs(recipes) do
-				else
+			if recipe.type == "digging" or recipe.type == "digging_chance" then
-					unified_inventory.add_category_item('environment', item.ore)
+				if not possible_node_dig_drops[itemname] then
+					possible_node_dig_drops[itemname] = {}
 				end
+				local stack = ItemStack(recipe.output)
+				table.insert(possible_node_dig_drops[itemname], stack:get_name())
+			end
+		end
+	end
+
+	-- Add minable ores to minerals and everything else (pockets of stone & sand variations) to environment
+	for _, odef in pairs(minetest.registered_ores) do
+		local drops = possible_node_dig_drops[odef.ore]
+		if drops and odef.ore_type == "scatter" then
+			ui.add_category_item('minerals', odef.ore)
+			-- Register all possible drops as "minerals"
+			ui.add_category_items('minerals', drops)
+			possible_node_dig_drops[odef.ore] = {} -- mask as handled
 		else
-				unified_inventory.add_category_item('environment', item.ore)
+			ui.add_category_item('environment', odef.ore)
 		end
 	end
 
@@ -87,9 +100,13 @@ if unified_inventory.automatic_categorization then
 			end
 		end
 	end
-	end)
 end
 
+if ui.automatic_categorization then
+	ui.register_on_initialized(register_automatic_categorization)
+end
+
+
 -- [[
 unified_inventory.add_category_items('plants', {
 	"default:dry_grass_5",
@@ -256,23 +273,6 @@ unified_inventory.add_category_items('minerals', {
 	"default:coal_lump",
 	"default:bronzeblock",
 	"default:goldblock",
-
-	"stairs:slab_bronzeblock",
-	"stairs:slab_copperblock",
-	"stairs:slab_steelblock",
-	"stairs:slab_tinblock",
-	"stairs:stair_bronzeblock",
-	"stairs:stair_copperblock",
-	"stairs:stair_inner_bronzeblock",
-	"stairs:stair_inner_copperblock",
-	"stairs:stair_inner_steelblock",
-	"stairs:stair_inner_tinblock",
-	"stairs:stair_outer_bronzeblock",
-	"stairs:stair_outer_copperblock",
-	"stairs:stair_outer_steelblock",
-	"stairs:stair_outer_tinblock",
-	"stairs:stair_steelblock",
-	"stairs:stair_tinblock",
 })
 
 unified_inventory.add_category_items('building', {

doc/mod_api.txt

@@ -1,7 +1,8 @@
 unified_inventory API
 =====================
 
-This file provides information about the API of unified_inventory.
+This file provides information about the API of unified_inventory
+and can be viewed in Markdown readers.
 
 API revisions within unified_inventory can be checked using:
 
@@ -23,7 +24,9 @@ Grouped by use-case, afterwards sorted alphabetically.
 Callbacks
 ---------
 
-Register a callback that will be run whenever a craft is registered via unified_inventory.register_craft:
+Register a callback that will be run whenever a craft is registered via unified_inventory.register_craft.
+This callback is run before any recipe ingredients checks, hence it is also executed on recipes that are
+purged after all mods finished loading.
 
 	unified_inventory.register_on_craft_registered(
 		function (item_name, options)
@@ -163,68 +166,57 @@ Register a non-standard craft recipe:
 Categories
 ----------
 
-Register a new category:
+ * `unified_inventory.register_category(name, def)`
-	The config table (second argument) is optional, and all its members are optional
+     * Registers a new category
-	See the unified_inventory.set_category_* functions for more details on the members of the config table
+     * `name` (string): internal category name
+     * `def` (optional, table): also its fields are optional
 
 	unified_inventory.register_category("category_name", {
-		symbol = "mod_name:item_name" or "texture.png",
+		symbol = source,
+		-- ^ Can be in the format "mod_name:item_name" or "texture.png",
 		label = "Human Readable Label",
 		index = 5,
+		-- ^ Categories are sorted by index. Lower numbers appear before higher ones.
+		--   By default, the name is translated to a number: AA -> 0.0101, ZZ -> 0.2626
+		---  Predefined category indices: "all" = -2, "uncategorized" = -1
 		items = {
 			"mod_name:item_name",
 			"another_mod:different_item"
 		}
+		-- ^ List of items within this category
 	})
+ * `unified_inventory.remove_category(name)`
+     * Removes an entire category
 
-Add / override the symbol for a category:
+Modifier functions (to be removed)
-	The category does not need to exist first
-	The symbol can be an item name or a texture image
-	If unset this will default to "default:stick"
 
-	unified_inventory.set_category_symbol("category_name", "mod_name:item_name" or "texture.png")
+ * `unified_inventory.set_category_symbol(name, source)`
+     * Changes the symbol of the category. The category does not need to exist yet.
+     * `name` (string): internal category name
+     * `source` (string, optional): `"mod_name:item_name"` or `"texture.png"`.
+       Defaults to `"default:stick"` if not specified.
+ * `unified_inventory.set_category_label(name, label)`
+     * Changes the human readable label of the category.
+     * `name` (string): internal category name
+     * `label` (string): human readable label. Defaults to the category name.
+ * `unified_inventory.set_category_index(name, index)`
+     * Changes the sorting index of the category.
+     * `name` (string): internal category name
+     * `index` (numeric): any real number
 
-Add / override the human readable label for a category:
+Item management
-	If unset this will default to the category name
 
-	unified_inventory.set_category_label("category_name", "Human Readable Label")
+ * `	unified_inventory.add_category_item(name, itemname)`
+     * Adds a single item to the category
+     * `itemname` (string): self-explanatory
+ * `unified_inventory.add_category_items(name, { itemname1, itemname2, ... }`
+     * Same as above but with multiple items
+ * `unified_inventory.remove_category_item(name, itemname)`
+     * Removes an item from the category
+ * `unified_inventory.find_category(itemname)`
+     * Looks up the first category containing this item
+     * Returns: category name (string) or nil
+ * `unified_inventory.find_categories(itemname)`
+     * Looks up the item name within all registered categories
+     * Returns: array of category names (table)
 
-Add / override the sorting index of the category:
-	Must be a number, can also be negative (-5) or fractional (2.345)
-	This determines the position the category appears in the list of categories
-	The "all" meta-category has index -2, the "misc"/"uncategorized" meta-category has index -1, use a negative number smaller than these to make a category appear before these in the list
-	By default categories are sorted alphabetically with an index between 0.0101(AA) and 0.2626(ZZ)
-
-	unified_inventory.set_category_index("category_name", 5)
-
-Add a single item to a category:
-
-	unified_inventory.add_category_item("category_name", "mod_name:item_name")
-
-Add multiple items to a category:
-
-	unified_inventory.add_category_items("category_name", {
-		"mod_name:item_name",
-		"another_mod:different_item"
-	})
-
-Remove an item from a category:
-
-	unified_inventory.remove_category_item("category_name", "mod_name:item_name")
-
-Remove a category entirely:
-
-	unified_inventory.remove_category("category_name")
-
-Finding existing items in categories:
-	This will find the first category an item exists in
-	It should be used for checking if an item is catgorised
-	Returns "category_name" or nil
-
-	unified_inventory.find_category("mod_name:item_name")
-
-
-	This will find all the categories an item exists in
-	Returns a number indexed table (list) of category names
-
-	unified_inventory.find_categories("mod_name:item_name")

group.lua

@@ -1,29 +1,5 @@
 local S = minetest.get_translator("unified_inventory")
-
+local ui = unified_inventory
-function unified_inventory.canonical_item_spec_matcher(spec)
-	local specname = ItemStack(spec):get_name()
-	if specname:sub(1, 6) ~= "group:" then
-		return function (itemname)
-			return itemname == specname
-		end
-	end
-
-	local group_names = specname:sub(7):split(",")
-	return function (itemname)
-		local itemdef = minetest.registered_items[itemname]
-		for _, group_name in ipairs(group_names) do
-			if (itemdef.groups[group_name] or 0) == 0 then
-				return false
-			end
-		end
-		return true
-	end
-end
-
-function unified_inventory.item_matches_spec(item, spec)
-	local itemname = ItemStack(item):get_name()
-	return unified_inventory.canonical_item_spec_matcher(spec)(itemname)
-end
 
 function unified_inventory.extract_groupnames(groupname)
 	local specname = ItemStack(groupname):get_name()
@@ -34,22 +10,6 @@ function unified_inventory.extract_groupnames(groupname)
 	return table.concat(group_names, S(" and ")), #group_names
 end
 
-unified_inventory.registered_group_items = {
-	mesecon_conductor_craftable = "mesecons:wire_00000000_off",
-	stone = "default:cobble",
-	wood = "default:wood",
-	book = "default:book",
-	sand = "default:sand",
-	leaves = "default:leaves",
-	tree = "default:tree",
-	vessel = "vessels:glass_bottle",
-	wool = "wool:white",
-}
-
-function unified_inventory.register_group_item(groupname, itemname)
-	unified_inventory.registered_group_items[groupname] = itemname
-end
-
 
 -- This is used when displaying craft recipes, where an ingredient is
 -- specified by group rather than as a specific item.  A single-item group
@@ -67,6 +27,7 @@ end
 -- It may be a comma-separated list of group names.  This is really a
 -- "group:..." ingredient specification, minus the "group:" prefix.
 
+-- TODO Replace this with the more efficient spec matcher (below)
 local function compute_group_item(group_name_list)
 	local group_names = group_name_list:split(",")
 	local candidate_items = {}
@@ -125,3 +86,61 @@ function unified_inventory.get_group_item(group_name)
 	return group_item_cache[group_name]
 end
 
+
+--[[
+This is for filtering known items by groups
+e.g. find all items that match "group:flower,yellow" (flower AND yellow groups)
+]]
+local spec_matcher = {}
+function unified_inventory.init_matching_cache()
+	for _, name in ipairs(ui.items_list) do
+		-- we only need to care about groups, exact items are handled separately
+		for group, value in pairs(minetest.registered_items[name].groups) do
+			if value and value ~= 0 then
+				if not spec_matcher[group] then
+					spec_matcher[group] = {}
+				end
+				spec_matcher[group][name] = true
+			end
+		end
+	end
+end
+
+--[[
+Retrieves all matching items
+
+Arguments:
+	specname (string): Item name or group(s) to filter
+
+Output:
+	{
+		matchingitem1 = true,
+		...
+	}
+]]
+function unified_inventory.get_matching_items(specname)
+	if specname:sub(1,6) ~= "group:" then
+		return { [specname] = true }
+	end
+
+	local accepted = {}
+	for i, group in ipairs(specname:sub(7):split(",")) do
+		if i == 1 then
+			-- First step: Copy all possible item names in this group
+			for name, _ in pairs(spec_matcher[group] or {}) do
+				accepted[name] = true
+			end
+		else
+			-- Perform filtering
+			if spec_matcher[group] then
+				for name, _ in pairs(accepted) do
+					accepted[name] = spec_matcher[group][name]
+				end
+			else
+				-- No matching items
+				return {}
+			end
+		end
+	end
+	return accepted
+end

init.lua

@@ -1,5 +1,11 @@
 -- Unified Inventory
 
+if not minetest.features.formspec_version_element then
+	-- At least formspec_version[] is the minimal feature requirement
+	error("Unified Inventory requires Minetest version 5.4.0 or newer.\n" ..
+		" Please update Minetest or use an older version of Unified Inventory.")
+end
+
 local modpath = minetest.get_modpath(minetest.get_current_modname())
 local worldpath = minetest.get_worldpath()
 
@@ -44,9 +50,12 @@ unified_inventory = {
 	trash_enabled = (minetest.settings:get_bool("unified_inventory_trash") ~= false),
 	imgscale = 1.25,
 	list_img_offset = 0.13,
-	standard_background = "background9[0,0;1,1;ui_formbg_9_sliced.png;true;16]",
+	standard_background = "bgcolor[#0000]background9[0,0;1,1;ui_formbg_9_sliced.png;true;16]",
 
-	version = 3
+	hide_disabled_buttons = minetest.settings:get_bool("unified_inventory_hide_disabled_buttons", false),
+	hide_uncraftable_items = minetest.settings:get_bool("unified_inventory_hide_uncraftable_items", false),
+
+	version = 5
 }
 
 local ui = unified_inventory
@@ -59,10 +68,16 @@ ui.style_full = {
 	formspec_y = 1,
 	formw = 17.75,
 	formh = 12.25,
+	-- Item browser size, pos
 	pagecols = 8,
 	pagerows = 9,
 	page_x = 10.75,
 	page_y = 2.30,
+	-- Item browser controls
+	page_buttons_x = 11.60,
+	page_buttons_y = 10.15,
+	searchwidth = 3.4,
+	-- Crafting grid positions
 	craft_x = 2.8,
 	craft_y = 1.15,
 	craftresult_x = 7.8,
@@ -74,13 +89,15 @@ ui.style_full = {
 	craft_guide_resultstr_x = 0.3,
 	craft_guide_resultstr_y = 0.6,
 	give_btn_x = 0.25,
+	-- Tab switching buttons
 	main_button_x = 0.4,
 	main_button_y = 11.0,
-	page_buttons_x = 11.60,
+	main_button_cols = 12,
-	page_buttons_y = 10.15,
+	main_button_rows = 1,
-	searchwidth = 3.4,
+	-- Tab title position
 	form_header_x = 0.4,
 	form_header_y = 0.4,
+	-- Generic sizes
 	btn_spc = 0.85,
 	btn_size = 0.75,
 	std_inv_x = 0.3,
@@ -92,10 +109,16 @@ ui.style_lite = {
 	formspec_y =  0.6,
 	formw = 14,
 	formh = 9.75,
+	-- Item browser size, pos
 	pagecols = 4,
 	pagerows = 5,
 	page_x = 10.5,
 	page_y = 2.15,
+	-- Item browser controls
+	page_buttons_x = 10.5,
+	page_buttons_y = 6.15,
+	searchwidth = 1.6,
+	-- Crafting grid positions
 	craft_x = 2.6,
 	craft_y = 0.75,
 	craftresult_x = 5.75,
@@ -107,13 +130,15 @@ ui.style_lite = {
 	craft_guide_resultstr_x = 0.15,
 	craft_guide_resultstr_y = 0.35,
 	give_btn_x = 0.15,
+	-- Tab switching buttons
 	main_button_x = 10.5,
 	main_button_y = 8.15,
-	page_buttons_x = 10.5,
+	main_button_cols = 4,
-	page_buttons_y = 6.15,
+	main_button_rows = 2,
-	searchwidth = 1.6,
+	-- Tab title position
 	form_header_x =  0.2,
 	form_header_y =  0.2,
+	-- Generic sizes
 	btn_spc = 0.8,
 	btn_size = 0.7,
 	std_inv_x = 0.1,
@@ -167,7 +192,12 @@ dofile(modpath.."/register.lua")
 if minetest.settings:get_bool("unified_inventory_bags") ~= false then
 	dofile(modpath.."/bags.lua")
 end
-
+if minetest.settings:get_bool("unified_inventory_item_names") ~= false then
 	dofile(modpath.."/item_names.lua")
+end
+if minetest.settings:get_bool("unified_inventory_waypoints") ~= false then
 	dofile(modpath.."/waypoints.lua")
+end
+dofile(modpath.."/legacy.lua") -- mod compatibility
+
 minetest.log("action", "[unified_inventory] loaded.")

internal.lua

@@ -18,7 +18,7 @@ function ui.demangle_for_formspec(str)
 	return string.gsub(str, "_([0-9]+)_", function (v) return string.char(v) end)
 end
 
-
+-- Get the player-specific unified_inventory style
 function ui.get_per_player_formspec(player_name)
 	local draw_lite_mode = ui.lite_mode and not minetest.check_player_privs(player_name, {ui_full=true})
 
@@ -27,6 +27,7 @@ function ui.get_per_player_formspec(player_name)
 	return style
 end
 
+-- Creates an item image or regular image button with a tooltip
 local function formspec_button(ui_peruser, name, image, offset, pos, scale, label)
 	local element = 'image_button'
 	if minetest.registered_items[image] then
@@ -43,52 +44,68 @@ local function formspec_button(ui_peruser, name, image, offset, pos, scale, labe
 		string.format("tooltip[%s;%s]", name, F(label or name))
 end
 
-local function formspec_add_filters(player, formspec, style)
+-- Add registered buttons (tabs)
-	local button_row = 0
+local function formspec_tab_buttons(player, formspec, style)
-	local button_col = 0
 	local n = #formspec + 1
 
 	-- Main buttons
 
 	local filtered_inv_buttons = {}
 
-	for i, def in pairs(ui.buttons) do
+	for _, def in pairs(ui.buttons) do
 		if not (style.is_lite_mode and def.hide_lite) then
+			if def.condition == nil or def.condition(player) or not ui.hide_disabled_buttons then
 				table.insert(filtered_inv_buttons, def)
 			end
 		end
-
-	local j = 1 --Modif NALC (sys4 20/11/2018) 12 buttons max by row
-	for i, def in pairs(filtered_inv_buttons) do
-		if style.is_lite_mode and i > 4 then
-			button_row = 1
-			button_col = 1
-		elseif not draw_lite_mode and j > 12 then
-			button_row = 1
-			j = 1
 	end
 
+	local needs_scrollbar = #filtered_inv_buttons > style.main_button_cols * style.main_button_rows
+
+	formspec[n] = ("scroll_container[%g,%g;%g,%g;tabbtnscroll;vertical]"):format(
+		style.main_button_x, style.main_button_y, -- position
+		style.main_button_cols * style.btn_spc, style.main_button_rows -- size
+	)
+	n = n + 1
+
+	for i, def in pairs(filtered_inv_buttons) do
+		local pos_x =           ((i - 1) % style.main_button_cols) * style.btn_spc
+		local pos_y = math.floor((i - 1) / style.main_button_cols) * style.btn_spc
+
 		if def.type == "image" then
-			local pos_x = style.main_button_x + style.btn_spc * (j - 1) - button_col * style.btn_spc * 4
+			if (def.condition == nil or def.condition(player)) then
-			local pos_y = style.main_button_y + button_row * style.btn_spc
+				formspec[n] = string.format("image_button[%g,%g;%g,%g;%s;%s;]",
-			if (def.condition == nil or def.condition(player) == true) then
-				formspec[n] = string.format("image_button[%f,%f;%f,%f;%s;%s;]",
 					pos_x, pos_y, style.btn_size, style.btn_size,
 					F(def.image),
 					F(def.name))
 				formspec[n+1] = "tooltip["..F(def.name)..";"..(def.tooltip or "").."]"
 				n = n+2
+
 			else
-				formspec[n] = string.format("image[%f,%f;%f,%f;%s^[colorize:#808080:alpha]",
+				formspec[n] = string.format("image[%g,%g;%g,%g;%s^[colorize:#808080:alpha]",
 					pos_x, pos_y, style.btn_size, style.btn_size,
 					def.image)
 				n = n+1
 			end
 		end
-		j = j + 1 -- Modif NALC
+	end
+	formspec[n] = "scroll_container_end[]"
+	if needs_scrollbar then
+		local total_rows = math.ceil(#filtered_inv_buttons / style.main_button_cols)
+		formspec[n+1] = ("scrollbaroptions[max=%i;arrows=hide]"):format(
+			-- This calculation is not 100% accurate but "good enough"
+			(total_rows - style.main_button_rows) * style.btn_spc * 10
+		)
+		formspec[n+2] = ("scrollbar[%g,%g;0.4,%g;vertical;tabbtnscroll;0]"):format(
+			style.main_button_x + style.main_button_cols * style.btn_spc - 0.1, -- x pos
+			style.main_button_y, -- y pos
+			style.main_button_rows * style.btn_spc -- height
+		)
+		formspec[n+3] = "scrollbaroptions[max=1000;arrows=default]"
 	end
 end
 
+-- Add category GUI elements (top right)
 local function formspec_add_categories(player, formspec, ui_peruser)
 	local player_name = player:get_player_name()
 	local n = #formspec + 1
@@ -102,9 +119,9 @@ local function formspec_add_categories(player, formspec, ui_peruser)
 		ui_peruser.form_header_y - (ui_peruser.is_lite_mode and 0 or 0.2)
 	}
 
-	formspec[n] = string.format("background9[%f,%f;%f,%f;%s;false;3]",
+	formspec[n] = string.format("background9[%f,%f;%f,%f;%s;false;16]",
-		ui_peruser.page_x-0.1, categories_scroll_pos[2],
+		ui_peruser.page_x-0.15, categories_scroll_pos[2],
-		(ui_peruser.btn_spc * ui_peruser.pagecols) + 0.13, 1.4 + (ui_peruser.is_lite_mode and 0 or 0.2),
+		(ui_peruser.btn_spc * ui_peruser.pagecols) + 0.2, 1.4 + (ui_peruser.is_lite_mode and 0 or 0.2),
 		"ui_smallbg_9_sliced.png")
 	n = n + 1
 
@@ -243,17 +260,25 @@ local function formspec_add_item_browser(player, formspec, ui_peruser)
 					ui_peruser.btn_size, ui_peruser.btn_size,
 					name, button_name
 				)
+				local tooltip = item.description
+				if item.mod_origin then
+					-- "mod_origin" may not be specified for items that were
+					-- registered in a callback (during or before ServerEnv init)
+					tooltip = tooltip .. " [" .. item.mod_origin .. "]"
+				end
 				formspec[n + 1] = ("tooltip[%s;%s]"):format(
-					button_name, minetest.formspec_escape(item.description)
+					button_name, minetest.formspec_escape(tooltip)
 				)
 				n = n + 2
+			end
 			list_index = list_index + 1
 		end
 	end
-	end
+	formspec[n] = "style[page_number;content_offset=0]"
-	formspec[n] = string.format("label[%f,%f;%s: %s]",
+	formspec[n + 1] = string.format("image_button[%f,%f;%f,0.4;;page_number;%s: %s;false;false;]",
-		ui_peruser.page_buttons_x + ui_peruser.btn_spc * (ui_peruser.is_lite_mode and 1 or 2),
+		ui_peruser.page_buttons_x,
-		ui_peruser.page_buttons_y + 0.1 + ui_peruser.btn_spc * 2,
+		ui_peruser.page_buttons_y + ui_peruser.btn_spc * 2 - 0.1,
+		ui_peruser.btn_spc * (bn - 1) + ui_peruser.btn_size,
 		F(S("Page")), S("@1 of @2",page2,pagemax))
 end
 
@@ -285,7 +310,7 @@ function ui.get_formspec(player, page)
 
 	fs[#fs + 1] = fsdata.formspec
 
-	formspec_add_filters(player, fs, ui_peruser)
+	formspec_tab_buttons(player, fs, ui_peruser)
 
 	if fsdata.draw_inventory ~= false then
 		-- Player inventory
@@ -310,7 +335,7 @@ function ui.set_inventory_formspec(player, page)
 	end
 end
 
-local function valid_def(def)
+function ui.is_itemdef_listable(def)
 	return (not def.groups.not_in_creative_inventory
 			or def.groups.not_in_creative_inventory == 0)
 		and def.description
@@ -323,11 +348,30 @@ function ui.apply_filter(player, filter, search_dir)
 		return false
 	end
 	local player_name = player:get_player_name()
+
+	-- Whether to show uncraftable items
+	local fprefilter = function(_)
+		return true
+	end
+	if ui.hide_uncraftable_items and not ui.is_creative(player_name) then
+		fprefilter = function(name)
+			return ui.get_recipe_list(name)
+		end
+	end
+
+	local registered_items = minetest.registered_items
 	local lfilter = string.lower(filter)
 	local ffilter
+
 	if lfilter:sub(1, 6) == "group:" then
+		-- Group filter: all groups of the item must match
 		local groups = lfilter:sub(7):split(",")
-		ffilter = function(name, def)
+		ffilter = function(name)
+			local def = registered_items[name]
+			if not def then
+				return false
+			end
+
 			for _, group in ipairs(groups) do
 				if not def.groups[group]
 				or def.groups[group] <= 0 then
@@ -337,8 +381,16 @@ function ui.apply_filter(player, filter, search_dir)
 			return true
 		end
 	else
-		local lang = minetest.get_player_information(player_name).lang_code
+		-- Name filter: fuzzy match item names and descriptions
-		ffilter = function(name, def)
+		local player_info = minetest.get_player_information(player_name)
+		local lang = player_info and player_info.lang_code or ""
+
+		ffilter = function(name)
+			local def = registered_items[name]
+			if not def then
+				return false
+			end
+
 			local lname = string.lower(name)
 			local ldesc = string.lower(def.description)
 			local llocaldesc = minetest.get_translated_string
@@ -347,37 +399,50 @@ function ui.apply_filter(player, filter, search_dir)
 				or llocaldesc and string.find(llocaldesc, lfilter, 1, true)
 		end
 	end
-	ui.filtered_items_list[player_name]={}
+
+	local filtered_items = {}
+
 	local category = ui.current_category[player_name] or 'all'
 	if category == 'all' then
-		for name, def in pairs(minetest.registered_items) do
+		for _, name in ipairs(ui.items_list) do
-			if valid_def(def)
+			if fprefilter(name) and ffilter(name) then
-			and ffilter(name, def) then
+				table.insert(filtered_items, name)
-				table.insert(ui.filtered_items_list[player_name], name)
 			end
 		end
 	elseif category == 'uncategorized' then
-		for name, def in pairs(minetest.registered_items) do
+		for _, name in ipairs(ui.items_list) do
-			if (not ui.find_category(name))
+			if not ui.find_category(name)
-			and valid_def(def)
+					and fprefilter(name)
-			and ffilter(name, def) then
+					and ffilter(name) then
-				table.insert(ui.filtered_items_list[player_name], name)
+				table.insert(filtered_items, name)
 			end
 		end
 	else
+		-- Any other category is selected
 		for name, exists in pairs(ui.registered_category_items[category]) do
-			local def = minetest.registered_items[name]
+			if exists
-			if exists and def
+					and fprefilter(name)
-			and valid_def(def)
+					and ffilter(name) then
-			and ffilter(name, def) then
+				table.insert(filtered_items, name)
-				table.insert(ui.filtered_items_list[player_name], name)
 			end
 		end
 	end
-	table.sort(ui.filtered_items_list[player_name])
+	table.sort(filtered_items)
-	ui.filtered_items_list_size[player_name] = #ui.filtered_items_list[player_name]
+
+	ui.filtered_items_list_size[player_name] = #filtered_items
+	ui.filtered_items_list[player_name] = filtered_items
 	ui.current_index[player_name] = 1
 	ui.activefilter[player_name] = filter
 	ui.active_search_direction[player_name] = search_dir
 	ui.set_inventory_formspec(player, ui.current_page[player_name])
 end
+
+-- Inform players about potential visual issues
+minetest.register_on_joinplayer(function(player)
+	local player_name = player:get_player_name()
+	local info = minetest.get_player_information(player_name)
+	if info and (info.formspec_version or 0) < 4 then
+		minetest.chat_send_player(player_name, S("Unified Inventory: Your game version is too old"
+			.. " and does not support the GUI requirements. You might experience visual issues."))
+	end
+end)

item_names.lua

@@ -3,6 +3,8 @@
 local item_names = {} -- [player_name] = { hud, dtime, itemname }
 local dlimit = 3  -- HUD element will be hidden after this many seconds
 local hudbars_mod = minetest.get_modpath("hudbars")
+local only_names = minetest.settings:get_bool("unified_inventory_only_names", true)
+local max_length = tonumber(minetest.settings:get("unified_inventory_max_item_name_length")) or 80
 
 local function set_hud(player)
 	local player_name = player:get_player_name()
@@ -16,7 +18,8 @@ local function set_hud(player)
 
 	item_names[player_name] = {
 		hud = player:hud_add({
-			hud_elem_type = "text",
+			-- TODO: remove compatibility code when 5.8.0 is no longer used
+			[minetest.features.hud_def_type_field and "type" or "hud_elem_type"] = "text",
 			position = {x=0.5, y=1},
 			offset = off,
 			alignment = {x=0, y=-1},
@@ -60,6 +63,7 @@ minetest.register_globalstep(function(dtime)
 			data.itemname = itemname
 			data.index = index
 			data.dtime = 0
+			local lang_code = minetest.get_player_information(player:get_player_name()).lang_code
 
 			local desc = stack.get_meta
 				and stack:get_meta():get_string("description")
@@ -69,6 +73,14 @@ minetest.register_globalstep(function(dtime)
 				local def = minetest.registered_items[itemname]
 				desc = def and def.description or ""
 			end
+			if only_names and desc and string.find(desc, "\n") then
+				desc = string.match(desc, "([^\n]*)")
+			end
+			desc = minetest.get_translated_string(lang_code, desc)
+			desc = minetest.strip_colors(desc)
+			if string.len(desc) > max_length and max_length > 0 then
+				desc = string.sub(desc, 1, max_length) .. " [...]"
+			end
 			player:hud_change(data.hud, 'text', desc)
 		end
 	end

legacy.lua

@@ -0,0 +1,55 @@
+-- Inefficient pattern matching
+
+local warned_funcs = {}
+local function LOG_ONCE(funcname)
+	if warned_funcs[funcname] then return end
+	warned_funcs[funcname] = true
+	minetest.log("error", "Call to undocumented, deprecated API '" .. funcname .. "'."
+		.. " In a future version of Unified Inventory this will result in a real error.")
+end
+
+function unified_inventory.canonical_item_spec_matcher(spec)
+	LOG_ONCE("canonical_item_spec_matcher")
+	local specname = ItemStack(spec):get_name()
+	if specname:sub(1, 6) ~= "group:" then
+		return function (itemname)
+			return itemname == specname
+		end
+	end
+
+	local group_names = specname:sub(7):split(",")
+	return function (itemname)
+		local itemdef = minetest.registered_items[itemname]
+		for _, group_name in ipairs(group_names) do
+			if (itemdef.groups[group_name] or 0) == 0 then
+				return false
+			end
+		end
+		return true
+	end
+end
+
+function unified_inventory.item_matches_spec(item, spec)
+	LOG_ONCE("item_matches_spec")
+	local itemname = ItemStack(item):get_name()
+	return unified_inventory.canonical_item_spec_matcher(spec)(itemname)
+end
+
+
+unified_inventory.registered_group_items = {
+	mesecon_conductor_craftable = "mesecons:wire_00000000_off",
+	stone = "default:cobble",
+	wood = "default:wood",
+	book = "default:book",
+	sand = "default:sand",
+	leaves = "default:leaves",
+	tree = "default:tree",
+	vessel = "vessels:glass_bottle",
+	wool = "wool:white",
+}
+
+function unified_inventory.register_group_item(groupname, itemname)
+	LOG_ONCE("register_group_item")
+	unified_inventory.registered_group_items[groupname] = itemname
+end
+

locale/unified_inventory.de.tr

@@ -7,17 +7,17 @@ Bag @1=Tasche @1
 Small Bag=Kleine Tasche
 Medium Bag=Mittelgroße Tasche
 Large Bag=Große Tasche
-All Items=
+All Items=Alle Gegenstände
-Misc. Items=
+Misc. Items=Sonstige Gegenstände
-Plant Life=
+Plant Life=Pfanzenwelt
-Building Materials=
+Building Materials=Baumaterialien
-Tools=
+Tools=Werkzeuge
-Minerals and Metals=
+Minerals and Metals=Minerale und Metalle
-Environment and Worldgen=
+Environment and Worldgen=Umwelt und Welterstellung
-Lighting=
+Lighting=Beleuchtung
  and = und 
-Scroll categories left=
+Scroll categories left=Kategorien nach links blättern
-Scroll categories right=
+Scroll categories right=Kategorien nach rechts blättern
 Search=Suchen
 Reset search and display everything=Suche zurücksetzen und alles anzeigen
 First page=Erste Seite
@@ -76,10 +76,10 @@ Waypoints=Wegpunkte
 Select Waypoint #@1=Wegpunkt Nr. @1 auswählen
 Waypoint @1=Wegpunkt Nr. @1
 Set waypoint to current location=Setze Wegpunkt zur derzeitigen Position
-Hide waypoint=
+Hide waypoint=Wegpunkt verstecken
-Show waypoint=
+Show waypoint=Wegpunkt zeigen
-Hide coordinates=
+Hide coordinates=Koordinaten verstecken
-Show coordinates=
+Show coordinates=Koordinaten zeigen
 Change color of waypoint display=Farbe der Darstellung der Wegpunkte ändern
 Edit waypoint name=Name des Wegpunkts ändern
 Waypoint active=Wegpunkt aktiv

locale/unified_inventory.pl.tr

@@ -1,98 +1,91 @@
 # textdomain: unified_inventory
-Mixing=
+Category:=Kategorie:
-Cooking=
+Mixing=Miksowanie
-Digging=
+Cooking=Gotowanie
+Digging=Kopanie
 Bags=Plecaki
 Bag @1=Plecak @1
-Small Bag=Maly plecak
+Small Bag=Mały plecak
-Medium Bag=Sredni plecak
+Medium Bag=Średni plecak
-Large Bag=Duzy plecak
+Large Bag=Duży plecak
-All Items=
+All Items=Wszystkie przedmioty
-Misc. Items=
+Misc. Items=Różne przedmioty
-Plant Life=
+Plant Life=Życie roślin
-Building Materials=
+Building Materials=Materiały budowlane
-Tools=
+Tools=Narzędzia
-Minerals and Metals=
+Minerals and Metals=Minerały i metale
-Environment and Worldgen=
+Environment and Worldgen=Otoczenie i generowanie świata
-Lighting=
+Lighting=Oświetlenie
  and = i 
-Scroll categories left=
+Scroll categories left=Przewiń kategorię w lewo
-Scroll categories right=
+Scroll categories right=Przewiń kategorię w prawo
 Search=Szukaj
-Reset search and display everything=
+Reset search and display everything=Zresetuj wyszukiwanie i pokaż wszystko
 First page=Pierwsza strona
-Back three pages=3 strony w tyl
+Back three pages=Trzy strony do tyłu
-Back one page=1 strona w tyl
+Back one page=Stronę do tyłu
-Forward one page=1 strona do przodu
+Forward one page=Stronę do przodu
-Forward three pages=3 strony do przodu
+Forward three pages=Trzy strony do przodu
 Last page=Ostatnia strona
-No matching items=Brak pasujacych przedmiotow
+No matching items=Brak pasujących przedmiotów
 No matches.=Brak wyników
 Page=Strona
 @1 of @2=@1 z @2
 Filter=Filtr
-Can use the creative inventory=
+Can use the creative inventory=Może używać kreatywnego ekwipunku
-Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=
+Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=Wymusza wyświetlanie Unified Inventory w trybie Full jeżeli tryb Lite jest skonfigurowany globalnie
-Crafting Grid=
+Crafting Grid=Siatka craftingu
-Crafting Guide=
+Crafting Guide=Przewodnik craftingu
-Set home position=Ustaw pozycję wyjściową
+Set home position=Ustaw pozycję domu
-Home position set to: @1=Pozycja domowa ustawiona na: @1
+Home position set to: @1=Pozycja domu ustawiona na: @1
-You don't have the "home" privilege!=Nie masz uprawnien do zmiany czasu "home"!
+You don't have the "home" privilege!=Brak uprawnień "home"!
 Go home=Idź do domu
 Set time to day=Ustaw czas na dzień
 Time of day set to 6am=Czas ustawiony na 6:00
-You don't have the settime privilege!=Nie masz uprawnien do zmiany czasu "settime"!
+You don't have the settime privilege!=Brak uprawnień "settime"!
 Set time to night=Ustaw czas na noc
 Time of day set to 9pm=Czas ustawiony na 21:00
-Clear inventory=Wyczyść zapasy
+Clear inventory=Wyczyść ekwipunek
-This button has been disabled outside of creative mode to prevent accidental inventory trashing.@nUse the trash slot instead.=
+This button has been disabled outside of creative mode to prevent accidental inventory trashing.@nUse the trash slot instead.=Aby zapobiec przypadkowemu skasowaniu ekwipunku, ten przycisk został wyłączony poza trybem kreatywnym.@nUżyj zamiast tego ikony śmietnika.
-Inventory cleared!=Zapasy zostały wyczyszczone!
+Inventory cleared!=Ekwipunek został wyczyszczony!
-Trash:=Smietnik:
+Trash:=Śmietnik:
-Refill:=Uzupelnianie:
+Refill:=Uzupełnianie:
-Any item belonging to the @1 group=
+Any item belonging to the @1 group=Każdy przedmiot należący do @1 grupy
-Any item belonging to the groups @1=
+Any item belonging to the groups @1=Każdy przedmiot należacy do grup @1
 Recipe @1 of @2=Recepta @1 z @2
 Usage @1 of @2=Użycie @1 z @2
 No recipes=Brak recepty
 No usages=Bez użycia
 Result=Wynik
 Ingredient=Składnik
-Show next recipe=
+Show next recipe=Pokaż nastepną recepturę
-Show next usage=
+Show next usage=Pokaż następne użycie
-Show previous recipe=
+Show previous recipe=Pokaż poprzednią recepturę
-Show previous usage=
+Show previous usage=Pokaż poprzednie użycie
-@1 (@2)=
+@1 (@2)=@1 (@2)
 Give me:=Daj mi:
-This recipe is too@@large to be displayed.=
+This recipe is too@@large to be displayed.=Receptura jest zbyt@@duża aby ją wyświetlić.
-To craft grid:=
+To craft grid:=Do siatki craftingu.
 All=Wszystko
-Crafting=
+Crafting=Crafting
-White=Bialy
+White=Biały
-Yellow=Zolty
+Yellow=Zółty
 Red=Czerwony
 Green=Zielony
 Blue=Niebieski
 Waypoints=Punkty orientacyjne
 Select Waypoint #@1=Wybierz punkt #@1
 Waypoint @1=Punkty orientacyjne @1
-Set waypoint to current location=Ustaw punkt orientacyjny na biezacej pozycji
+Set waypoint to current location=Ustaw punkt orientacyjny na bieżacej pozycji
-Hide waypoint=
+Hide waypoint=Ukryj punkt orientacyjny
-Show waypoint=
+Show waypoint=Pokaż punkt orientacyjny
-Hide coordinates=
+Hide coordinates=Ukryj koordynaty
-Show coordinates=
+Show coordinates=Pokaż koordynaty
-Change color of waypoint display=Zmien kolor punktu
+Change color of waypoint display=Zmień kolor punktu
-Edit waypoint name=Edytuj nazwe punktu
+Edit waypoint name=Edytuj nazwę punktu
-Waypoint active=Punkt wlaczony
+Waypoint active=Punkt włączony
-Waypoint inactive=Punkt wylaczony
+Waypoint inactive=Punkt wyłączony
-Finish editing=Zakoncz edycje
+Finish editing=Zakończ edycję
 World position=Pozycja
 Name=Nazwa
 HUD text color=Kolor tekstu HUD
-
-
-##### not used anymore #####
-
-invisible=niewidzialny
-visible=widomy
-Make waypoint @1=Robić punkt @1
-@1 display of waypoint coordinates=@1 koordynatow punktu

locale/unified_inventory.ru.tr

@@ -1,23 +1,23 @@
 # textdomain: unified_inventory
 Mixing=Мешать
-Cooking=Варить
+Cooking=Готовить
 Digging=Копать
 Bags=Сумки
 Bag @1=Сумка @1
 Small Bag=Малая сумка
 Medium Bag=Средняя сумка
 Large Bag=Большая сумка
-All Items=
+All Items=Все предметы
-Misc. Items=
+Misc. Items=Разн. предметы
-Plant Life=
+Plant Life=Растения
-Building Materials=
+Building Materials=Стройматериалы
-Tools=
+Tools=Инструменты
-Minerals and Metals=
+Minerals and Metals=Металлы и минералы
-Environment and Worldgen=
+Environment and Worldgen=Окружение и генер.мира
-Lighting=
+Lighting=Освещение
  and = и 
-Scroll categories left=
+Scroll categories left=Листать влево
-Scroll categories right=
+Scroll categories right=Листать вправо
 Search=Поиск
 Reset search and display everything=Сброс поиска, показать всё
 First page=Первая страница
@@ -32,7 +32,7 @@ Page=Страница
 @1 of @2=@1 из @2
 Filter=Фильтр
 Can use the creative inventory=Можно использовать инвентарь творческого режима
-Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=
+Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=Отображает инвентарь в полном режиме, если простой режим установлен глобально
 Crafting Grid=Решетка крафта
 Crafting Guide=Книга рецептов
 Set home position=Установить позицию дома
@@ -59,11 +59,11 @@ Result=Результат
 Ingredient=Состав
 Show next recipe=Следующий рецепт
 Show next usage=Следующее использование
-Show previous recipe=Прошлый рецепт
+Show previous recipe=Предыдущий рецепт
-Show previous usage=Прошлая страница
+Show previous usage=Предыдущая страница
 @1 (@2)=
 Give me:=Дай мне:
-This recipe is too@@large to be displayed.=
+This recipe is too@@large to be displayed.=Этот рецепт слишком большой
 To craft grid:=На решeтку крафта:
 All=Все
 Crafting=Крафт
@@ -76,10 +76,10 @@ Waypoints=Путевые точки
 Select Waypoint #@1=Выбрать путевую точку №@1
 Waypoint @1=Путевая точка @1
 Set waypoint to current location=Установить путевую точку по текущей позиции
-Hide waypoint=
+Hide waypoint=Скрыть точку
-Show waypoint=
+Show waypoint=Показать точку
-Hide coordinates=
+Hide coordinates=Скрыть координаты
-Show coordinates=
+Show coordinates=Показать координаты
 Change color of waypoint display=Поменять цвет путевой точки
 Edit waypoint name=Переименовать путевую точку
 Waypoint active=Путевая точка включена
@@ -88,13 +88,4 @@ Finish editing=Закончить редакцию
 World position=Позиция мира
 Name=Имя
 HUD text color=Цвет текста HUDа
-
+Category:=Категории:
-
-##### not used anymore #####
-
-invisible=невидимой
-visible=видимой
-Make waypoint @1=Сделать путевую точку @1
-Disable=Выключить
-Enable=Включить
-@1 display of waypoint coordinates=@1 показ координат путевых точек

locale/unified_inventory.zh_CN.tr

@@ -7,17 +7,17 @@ Bag @1=背包@1
 Small Bag=小背包
 Medium Bag=中背包
 Large Bag=大背包
-All Items=
+All Items=所有物品
-Misc. Items=
+Misc. Items=杂项
-Plant Life=
+Plant Life=植物
-Building Materials=
+Building Materials=建材
-Tools=
+Tools=工具
-Minerals and Metals=
+Minerals and Metals=矿物与金属
-Environment and Worldgen=
+Environment and Worldgen=自然环境
-Lighting=
+Lighting=光源
  and = 和 
-Scroll categories left=
+Scroll categories left=向左滚动分类栏
-Scroll categories right=
+Scroll categories right=向右滚动分类栏
 Search=搜索
 Reset search and display everything=重置搜索并显示所有物品
 First page=第一页
@@ -32,7 +32,7 @@ Page=页面
 @1 of @2=第@1页，共@2页
 Filter=过滤器
 Can use the creative inventory=可以使用创造背包
-Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=
+Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=如果轻量模式被全局配置，强迫Unified Inventory以完全模式展现。
 Crafting Grid=合成表
 Crafting Guide=合成指南
 Set home position=设置家的位置
@@ -45,7 +45,7 @@ You don't have the settime privilege!=你没有“settime”权限！
 Set time to night=设置时间到晚上
 Time of day set to 9pm=时间设置到晚上9点
 Clear inventory=清空背包
-This button has been disabled outside of creative mode to prevent accidental inventory trashing.@nUse the trash slot instead.=
+This button has been disabled outside of creative mode to prevent accidental inventory trashing.@nUse the trash slot instead.=此按钮已在非创造模式中禁用以防止意外的背包清空。@n请使用垃圾桶栏。
 Inventory cleared!=清空背包
 Trash:=丢弃：
 Refill:=填满：
@@ -57,13 +57,13 @@ No recipes=没有配方
 No usages=没有用法
 Result=结果
 Ingredient=原料
-Show next recipe=
+Show next recipe=显示下一个配方
-Show next usage=
+Show next usage=显示下一个用法
-Show previous recipe=
+Show previous recipe=显示前一个配方
-Show previous usage=
+Show previous usage=显示前一个用法
-@1 (@2)=
+@1 (@2)=@1 (@2)
 Give me:=给予：
-This recipe is too@@large to be displayed.=
+This recipe is too@@large to be displayed.=该配方太@@大，不能显示。
 To craft grid:=填充物品到合成表
 All=全部
 Crafting=合成
@@ -76,10 +76,10 @@ Waypoints=航路点
 Select Waypoint #@1=查询航路点 #@1
 Waypoint @1=航路点 @1
 Set waypoint to current location=将航路点设置到当前位置
-Hide waypoint=
+Hide waypoint=隐藏航路点
-Show waypoint=
+Show waypoint=显示航路点
-Hide coordinates=
+Hide coordinates=隐藏坐标
-Show coordinates=
+Show coordinates=显示坐标
 Change color of waypoint display=改变航路点显示的颜色
 Edit waypoint name=编辑航路点名称
 Waypoint active=航路点已激活

locale/unified_inventory.zh_TW.tr

@@ -7,17 +7,17 @@ Bag @1=揹包@1
 Small Bag=小揹包
 Medium Bag=中揹包
 Large Bag=大揹包
-All Items=
+All Items=所有物品
-Misc. Items=
+Misc. Items=雜項
-Plant Life=
+Plant Life=植物
-Building Materials=
+Building Materials=建材
-Tools=
+Tools=工具
-Minerals and Metals=
+Minerals and Metals=礦物與金屬
-Environment and Worldgen=
+Environment and Worldgen=自然環境
-Lighting=
+Lighting=光源
  and = 和 
-Scroll categories left=
+Scroll categories left=向左滾動分類欄
-Scroll categories right=
+Scroll categories right=向右滾動分類欄
 Search=搜索
 Reset search and display everything=重置搜索並顯示所有物品
 First page=第一頁
@@ -32,7 +32,7 @@ Page=頁面
 @1 of @2=第@1頁，共@2頁
 Filter=過濾器
 Can use the creative inventory=可以使用創造揹包
-Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=
+Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=如果輕量模式被全局配置，強迫Unified Inventory以完全模式展現。
 Crafting Grid=合成表
 Crafting Guide=合成指南
 Set home position=設置家的位置
@@ -45,7 +45,7 @@ You don't have the settime privilege!=你沒有“settime”權限！
 Set time to night=設置時間到晚上
 Time of day set to 9pm=時間設置到晚上9點
 Clear inventory=清空揹包
-This button has been disabled outside of creative mode to prevent accidental inventory trashing.@nUse the trash slot instead.=
+This button has been disabled outside of creative mode to prevent accidental inventory trashing.@nUse the trash slot instead.=此按鈕已在非創造模式中禁用以防止意外的背包清空。@n請使用垃圾桶欄。
 Inventory cleared!=清空揹包
 Trash:=丟棄：
 Refill:=填滿：
@@ -57,13 +57,13 @@ No recipes=沒有配方
 No usages=沒有用法
 Result=結果
 Ingredient=原料
-Show next recipe=
+Show next recipe=顯示下一個配方
-Show next usage=
+Show next usage=顯示下一個用法
-Show previous recipe=
+Show previous recipe=顯示上一個配方
-Show previous usage=
+Show previous usage=顯示上一個用法
-@1 (@2)=
+@1 (@2)=@1 (@2)
 Give me:=給予：
-This recipe is too@@large to be displayed.=
+This recipe is too@@large to be displayed.=該配方太@@大，不能顯示。
 To craft grid:=填充物品到合成表
 All=全部
 Crafting=合成
@@ -76,10 +76,10 @@ Waypoints=航路點
 Select Waypoint #@1=查詢航路點 #@1
 Waypoint @1=航路點 @1
 Set waypoint to current location=將航路點設置到當前位置
-Hide waypoint=
+Hide waypoint=隱藏航路點
-Show waypoint=
+Show waypoint=顯示航路點
-Hide coordinates=
+Hide coordinates=隱藏坐標
-Show coordinates=
+Show coordinates=顯示坐標
 Change color of waypoint display=改變航路點顯示的顏色
 Edit waypoint name=編輯航路點名稱
 Waypoint active=航路點已激活

match_craft.lua

@@ -126,25 +126,18 @@ Example output:
 	}
 --]]
 function unified_inventory.find_usable_items(inv_items, craft_items)
-	local get_group = minetest.get_item_group
 	local result = {}
 
 	for craft_item in pairs(craft_items) do
-		local group = craft_item:match("^group:(.+)")
+		-- may specify group:type1,type2
+		local items = unified_inventory.get_matching_items(craft_item)
+
 		local found = {}
-
+		for itemname, _ in pairs(items) do
-		if group ~= nil then
+			if inv_items[itemname] then
-			for inv_item in pairs(inv_items) do
+				found[itemname] = true
-				if get_group(inv_item, group) > 0 then
-					found[inv_item] = true
 			end
 		end
-		else
-			if inv_items[craft_item] ~= nil then
-				found[craft_item] = true
-			end
-		end
-
 		result[craft_item] = found
 	end
 

mod.conf

@@ -1,6 +1,6 @@
 name = unified_inventory
 
-optional_depends = default, creative, sfinv, datastorage, farming
+optional_depends = default, creative, sfinv, datastorage
 description = """
 Unified Inventory replaces the default survival and creative inventory.
 It adds a nicer interface and a number of features, such as a crafting guide.

register.lua

@@ -49,7 +49,7 @@ ui.register_button("misc_set_day", {
 	action = function(player)
 		local player_name = player:get_player_name()
 		if minetest.check_player_privs(player_name, {settime=true}) then
-			minetest.sound_play("birds",
+			minetest.sound_play("ui_morning",
 					{to_player=player_name, gain = 1.0})
 			minetest.set_timeofday((6000 % 24000) / 24000)
 			minetest.chat_send_player(player_name,
@@ -73,7 +73,7 @@ ui.register_button("misc_set_night", {
 	action = function(player)
 		local player_name = player:get_player_name()
 		if minetest.check_player_privs(player_name, {settime=true}) then
-			minetest.sound_play("owl",
+			minetest.sound_play("ui_owl",
 					{to_player=player_name, gain = 1.0})
 			minetest.set_timeofday((21000 % 24000) / 24000)
 			minetest.chat_send_player(player_name,
@@ -134,14 +134,14 @@ ui.register_page("craft", {
 		local n=#formspec+1
 
 		if ui.trash_enabled or ui.is_creative(player_name) or minetest.get_player_privs(player_name).give then
-			formspec[n] = string.format("label[%f,%f;%s]", craftx + 6.45, crafty + 2.4, F(S("Trash:")))
+			formspec[n] = string.format("label[%f,%f;%s]", craftx + 6.35, crafty + 2.3, F(S("Trash:")))
 			formspec[n+1] = ui.make_trash_slot(craftx + 6.25, crafty + 2.5)
 			n=n + 2
 		end
 
 		if ui.is_creative(player_name) then
 			formspec[n] = ui.single_slot(craftx - 2.5, crafty + 2.5)
-			formspec[n+1] = string.format("label[%f,%f;%s]", craftx - 2.3, crafty + 2.4,F(S("Refill:")))
+			formspec[n+1] = string.format("label[%f,%f;%s]", craftx - 2.4, crafty + 2.3, F(S("Refill:")))
 			formspec[n+2] = string.format("list[detached:%srefill;main;%f,%f;1,1;]",
 				F(player_name), craftx - 2.5 + ui.list_img_offset, crafty + 2.5 + ui.list_img_offset)
 		end
@@ -158,17 +158,15 @@ ui.register_page("craft", {
 
 local function stack_image_button(x, y, w, h, buttonname_prefix, item)
 	local name = item:get_name()
-	local count = item:get_count()
-	local wear = item:get_wear()
 	local description = item:get_meta():get_string("description")
 	local show_is_group = false
-	local displayitem = name.." "..count.." "..wear
+	local displayitem = item:to_string()
 	local selectitem = name
 	if name:sub(1, 6) == "group:" then
 		local group_name = name:sub(7)
 		local group_item = ui.get_group_item(group_name)
 		show_is_group = not group_item.sole
-		displayitem = group_item.item or "unknown"
+		displayitem = group_item.item or name
 		selectitem = group_item.sole and displayitem or name
 	end
 	local label = show_is_group and "G" or ""
@@ -196,6 +194,9 @@ local function stack_image_button(x, y, w, h, buttonname_prefix, item)
 	return button
 end
 
+-- The recipe text contains parameters, hence they can yet not be translated.
+-- Instead, use a dummy translation call so that it can be picked up by the
+-- static parsing of the translation string update script
 local recipe_text = {
 	recipe = NS("Recipe @1 of @2"),
 	usage = NS("Usage @1 of @2"),
@@ -248,11 +249,10 @@ ui.register_page("craftguide", {
 
 		local n = 4
 
+		local item_def = minetest.registered_items[item_name]
 		local item_name_shown
-		if minetest.registered_items[item_name]
+		if item_def and item_def.description then
-				and minetest.registered_items[item_name].description then
+			item_name_shown = S("@1 (@2)", item_def.description, item_name)
-			item_name_shown = S("@1 (@2)",
-				minetest.registered_items[item_name].description, item_name)
 		else
 			item_name_shown = item_name
 		end
@@ -277,12 +277,14 @@ ui.register_page("craftguide", {
 				F(role_text[dir]), item_name_shown)
 		n = n + 2
 
-		local giveme_form = table.concat({
+		local giveme_form =
-			"label[".. (give_x+0.1)..",".. (craftguidey + 2.7) .. ";" .. F(S("Give me:")) .. "]",
+			"label[" .. (give_x + 0.1) .. "," .. (craftguidey + 2.7) .. ";" .. F(S("Give me:")) .. "]" ..
-			"button["..(give_x)..","..     (craftguidey + 2.9) .. ";0.75,0.5;craftguide_giveme_1;1]",
+			"button[" .. (give_x) .. "," .. (craftguidey + 2.9) .. ";0.75,0.5;craftguide_giveme_1;1]"
-			"button["..(give_x+0.8)..",".. (craftguidey + 2.9) .. ";0.75,0.5;craftguide_giveme_10;10]",
+		if item_def and item_def.type ~= "tool" then
+			giveme_form = giveme_form ..
+				"button[" .. (give_x + 0.8) .. "," .. (craftguidey + 2.9) .. ";0.75,0.5;craftguide_giveme_10;10]" ..
 				"button[" .. (give_x + 1.6) .. "," .. (craftguidey + 2.9) .. ";0.75,0.5;craftguide_giveme_99;99]"
-		})
+		end
 
 		if not craft then
 			-- No craft recipes available for this item.
@@ -450,6 +452,14 @@ local function craftguide_craft(player, formname, fields)
 	local alternate = ui.alternate[player_name]
 
 	local craft = crafts[alternate]
+	if not craft.width then
+		if not craft.output then
+			minetest.log("warning", "[unified_inventory] Craft has no output.")
+		else
+			minetest.log("warning", ("[unified_inventory] Craft for '%s' has no width."):format(craft.output))
+		end
+		return
+	end
 	if craft.width > 3 then return end
 
 	ui.craftguide_match_craft(player, "main", "craft", craft, amount)

settingtypes.txt

@@ -1,14 +1,36 @@
-#Enabling lite mode enables a smaller and simpler version of the Unified
+# Reduced formspec layout, optimized for smaller displays.
-#Inventory, optimized for small displays.
+# Note: This may also disable some features to free up visual space.
 unified_inventory_lite (Lite mode) bool false
 
-#If enabled, bags will be made available which can be used to extend
+# Provides craftable bag items to extend the inventory space.
-#inventory storage size.
 unified_inventory_bags (Enable bags) bool true
 
-#If enabled, the trash slot can be used by those without both creative
+# Shows the trash slot to everyone.
-#and the give privilege.
+# When disabled, only players with the privilege "creative" or "give" will
+# have this slot shown in their inventory.
 unified_inventory_trash (Enable trash) bool true
 
+# Provides waypoints on a per-player basis to remember positions on the map.
+unified_inventory_waypoints (Enable waypoints) bool true
 
-unified_inventory_automatic_categorization (Items automatically added to categories) bool true
+# If enabled, disabled buttons will be hidden instead of grayed out.
+unified_inventory_hide_disabled_buttons (Hide disabled buttons) bool false
+
+# Hides items with no known craft recipe from the category "all" (default).
+# This setting has no effect on players in creative mode.
+unified_inventory_hide_uncraftable_items (Hide uncraftable items) bool false
+
+# Automatically categorizes registered items based on their
+# groups. This is based on a fuzzy match, thus is not 100% accurate.
+unified_inventory_automatic_categorization (Categories: add items automatically) bool true
+
+# Shows the selected wielded item description in the HUD for a few seconds.
+unified_inventory_item_names (Enable HUD item names) bool true
+
+# Trims the shown wielded item description to the first line.
+unified_inventory_only_names (HUD item name: first line only) bool true
+
+# Hard character limit of the wielded item description.
+# Crops the shown description to the specified length.
+# 0 disables this functionality.
+unified_inventory_max_item_name_length (HUD item names: character limit) int 80

waypoints.lua

@@ -103,7 +103,7 @@ local function get_waypoint_data(player)
 end
 
 ui.register_page("waypoints", {
-	get_formspec = function(player)
+	get_formspec = function(player, perplayer_formspec)
 		local player_name = player:get_player_name()
 		local wp_info_x = ui.style_full.form_header_x + 1.25
 		local wp_info_y = ui.style_full.form_header_y + 0.5
@@ -115,12 +115,16 @@ ui.register_page("waypoints", {
 		local sel = waypoints.selected or 1
 
 		local formspec = {
-			ui.style_full.standard_inv_bg,
 			string.format("label[%f,%f;%s]",
 				ui.style_full.form_header_x, ui.style_full.form_header_y, F(S("Waypoints"))),
 			"image["..wp_info_x..","..wp_info_y..";1,1;ui_waypoints_icon.png]"
 		}
-		local n=4
+		local n=3
+
+		if not perplayer_formspec.is_lite_mode then
+			formspec[n] = ui.style_full.standard_inv_bg
+			n = n + 1
+		end
 
 		-- Tabs buttons:
 		for i = 1, COUNT do
@@ -140,36 +144,49 @@ ui.register_page("waypoints", {
 
 		-- Main buttons:
 		local btnlist = {
-			set_waypoint = {
+			-- 1. formspec name
-				"ui_waypoint_set_icon.png",
+			-- 2. button image
-				S("Set waypoint to current location")
+			-- 3. translation text
-			},
+			{
-			toggle_waypoint = {
+				"toggle_waypoint",
 				waypoint.active and "ui_on_icon.png" or "ui_off_icon.png",
 				waypoint.active and S("Hide waypoint") or S("Show waypoint")
 			},
-			toggle_display_pos = {
+			{
+				"rename_waypoint",
+				"ui_pencil_icon.png",
+				S("Edit waypoint name")
+			},
+			{
+				"set_waypoint",
+				"ui_waypoint_set_icon.png",
+				S("Set waypoint to current location")
+			},
+			{
+				"toggle_display_pos",
 				waypoint.display_pos and "ui_green_icon_background.png^ui_xyz_icon.png" or "ui_red_icon_background.png^ui_xyz_icon.png^(ui_no.png^[transformR90)",
 				waypoint.display_pos and S("Hide coordinates") or S("Show coordinates")
 			},
-			toggle_color = {
+			{
+				"toggle_color",
 				"ui_circular_arrows_icon.png",
 				S("Change color of waypoint display")
 			},
-			rename_waypoint = {
-				"ui_pencil_icon.png",
-				S("Edit waypoint name")
-			}
 		}
+		if minetest.get_player_privs(player_name).teleport then
+			table.insert(btnlist, {
+				"teleport_waypoint",
+				"ui_teleport.png",
+				S("Teleport to waypoint")
+			})
+		end
 
-		local x = 4
+		for i, def in pairs(btnlist) do
-		for name, def in pairs(btnlist) do
 			formspec[n] = string.format("image_button[%f,%f;%f,%f;%s;%s%i;]",
-				wp_buttons_rj - ui.style_full.btn_spc * x, wp_bottom_row,
+				wp_buttons_rj + ui.style_full.btn_spc * (i - #btnlist), wp_bottom_row,
 				ui.style_full.btn_size, ui.style_full.btn_size,
-				def[1], name, sel)
+				def[2], def[1], sel)
-			formspec[n+1] = "tooltip["..name..sel..";"..F(def[2]).."]"
+			formspec[n+1] = "tooltip["..def[1]..sel..";"..F(def[3]).."]"
-			x = x - 1
 			n = n + 2
 		end
 
@@ -199,7 +216,10 @@ ui.register_page("waypoints", {
 		formspec[n+2] = string.format("label[%f,%f;%s: %s]",
 			wp_info_x, wp_info_y+2.60, F(S("HUD text color")), hud_colors[waypoint.color or 1][3])
 
-		return {formspec=table.concat(formspec)}
+		return {
+			formspec = table.concat(formspec),
+			draw_inventory = not perplayer_formspec.is_lite_mode,
+		}
 	end,
 })
 
@@ -207,7 +227,6 @@ ui.register_button("waypoints", {
 	type = "image",
 	image = "ui_waypoints_icon.png",
 	tooltip = S("Waypoints"),
-	hide_lite=true
 })
 
 local function update_hud(player, waypoints, temp, i)
@@ -313,6 +332,13 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 			update_formspec = true
 		end
 
+		if fields["teleport_waypoint" .. i] and waypoint.world_pos then
+			if minetest.get_player_privs(player_name).teleport then
+				minetest.sound_play("teleport", {to_player = player_name})
+				player:set_pos(waypoint.world_pos)
+			end
+		end
+
 		if hit then
 			-- Save first
 			waypoints.data[i] = waypoint
@@ -323,6 +349,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 			update_hud(player, waypoints, temp, i)
 		end
 		if update_formspec then
+			minetest.sound_play("ui_click", {to_player=player_name, gain = 0.1})
 			ui.set_inventory_formspec(player, "waypoints")
 		end