Fix bags backwards compatibility breakage since 4403b69 (#167)

In a number of places, background[] is misused to place the
inventory backdrop images.  Where appropriate, image[] is used
instead, so that "ui_form_bg.png" actually serves as the one
and only true background image.

In so doing, I was able to remake the bag inventory images,
making them only big as is actually needed to hold 1, 2, or 3
rows of inventory slots.

This, in turn, allows a standardized main inventory image to
occupy the lower part of the window, which allows for
consistent inventory image positioning and sizing from one
page to another.

I also removed ui_misc_form.png.  Nothing in UI uses it, and
any external mods that used it can just use the standard
inventory and its background.

Lastly, I reduced the background image to 512x384 px.  It was
unnecessarily large before, considering it has no real detail.

The larger inventory images are all 512px wide, and multiples
of 64px in height.  Before, they were oddly sized.

.github/workflows/check-release.yml

@@ -0,0 +1,11 @@
+on: [push, pull_request]
+name: Check & Release
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: lint
+        uses: Roang-zero1/factorio-mod-luacheck@master
+        with:
+          luacheckrc_url: https://raw.githubusercontent.com/minetest-mods/unified_inventory/master/.luacheckrc

.gitignore

@@ -0,0 +1,2 @@
+*~
+

.luacheckrc

@@ -0,0 +1,20 @@
+unused_args = false
+allow_defined_top = true
+max_line_length = 999
+
+globals = {
+	"unified_inventory",
+}
+
+read_globals = {
+	string = {fields = {"split", "trim"}},
+	table = {fields = {"copy", "getn"}},
+
+	"minetest", "vector",
+	"ItemStack", "datastorage",
+
+	"hb",
+}
+
+files["callbacks.lua"].ignore = { "player", "draw_lite_mode" }
+files["bags.lua"].ignore = { "player" }

LICENSE.txt

@@ -0,0 +1,19 @@
+Unified Inventory for Minetest
+Copyright (C) 2012-2014 Maciej Kasatkin (RealBadAngel)
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Contact information:
+	Examine a git patch to get the contributor's email address.

README.md

@@ -1,6 +1,99 @@
-unified_inventory
-=================
+# Unified Inventory
 
-Replacement for Minetest creative inventory.
+[![](https://github.com/minetest-mods/unified_inventory/workflows/Check%20&%20Release/badge.svg)](https://github.com/minetest-mods/unified_inventory/actions)
 
-Unified Inventory replaces the survival and creative inventory; it also functions as a crafting guide.
+![Screenshot](screenshot.png)
+
+Unified Inventory replaces the default survival and creative inventory.
+
+
+## Features
+
+ * Node, item and tool browser
+ * Crafting guide
+    * Can copy the recipe to the crafting grid
+    * Recipe search function by ingredients
+ * Up to four bags with up to 24 slots each
+ * Home function to teleport
+ * Trash slot
+ * Lite mode: reduces the item browser width
+    * `minetest.conf` setting `unified_inventory_lite = true`
+ * Mod API for modders: see [mod_api.txt](doc/mod_api.txt)
+ * Setting-determinated features: see [settingtypes.txt](settingtypes.txt)
+
+
+## Requirements
+
+ * Minetest 5.0.0+
+
+# Licenses
+
+Copyright (C) 2012-2014 Maciej Kasatkin (RealBadAngel)
+
+Copyright (C) 2012-? Various minetest-mods contributors
+
+
+## Code
+
+GNU LGPLv2+, see [license notice](LICENSE.txt)
+
+
+## Textures
+
+VanessaE: (CC-BY-4.0)
+
+  * `ui_group.png`
+
+Tango Project: (Public Domain, CC-BY-4.0)
+
+  * [`ui_reset_icon.png`](https://commons.wikimedia.org/wiki/File:Edit-clear.svg)
+  * [`ui_doubleleft_icon.png`](http://commons.wikimedia.org/wiki/File:Media-seek-backward.svg)
+  * [`ui_doubleright_icon.png`](http://commons.wikimedia.org/wiki/File:Media-seek-forward.svg)
+  * [`ui_left_icon.png` / `ui_right_icon.png`](http://commons.wikimedia.org/wiki/File:Media-playback-start.svg)
+  * [`ui_skip_backward_icon.png`](http://commons.wikimedia.org/wiki/File:Media-skip-backward.svg)
+  * [`ui_skip_forward_icon.png`](http://commons.wikimedia.org/wiki/File:Media-skip-forward.svg)
+
+From http://www.clker.com (Public Domain, CC-BY-4.0):
+
+  * [`bags_small.png`](http://www.clker.com/clipart-moneybag-empty.html)
+  * [`bags_medium.png`](http://www.clker.com/clipart-backpack-1.html)
+  * [`bags_large.png` / `ui_bags_icon.png`](http://www.clker.com/clipart-backpack-green-brown.html)
+  * `ui_trash_icon.png`: <http://www.clker.com/clipart-29090.html> and <http://www.clker.com/clipart-trash.html>
+  * [`ui_search_icon.png`](http://www.clker.com/clipart-24887.html)
+  * [`ui_off_icon.png` / `ui_on_icon.png`](http://www.clker.com/clipart-on-off-switches.html)
+  * [`ui_waypoints_icon.png`](http://www.clker.com/clipart-map-pin-red.html)
+  * [`ui_circular_arrows_icon.png`](http://www.clker.com/clipart-circular-arrow-pattern.html)
+  * [`ui_pencil_icon.pnc`](http://www.clker.com/clipart-2256.html)
+  * [`ui_waypoint_set_icon.png`](http://www.clker.com/clipart-larger-flag.html)
+
+Everaldo Coelho (YellowIcon) (LGPL v2.1+):
+
+  * [`ui_craftguide_icon.png` / `ui_craft_icon.png`](http://commons.wikimedia.org/wiki/File:Advancedsettings.png)
+
+Gregory H. Revera: (CC-BY-SA 3.0)
+
+  * [`ui_moon_icon.png`](http://commons.wikimedia.org/wiki/File:FullMoon2010.jpg)
+
+Thomas Bresson: (CC-BY 3.0)
+
+  * [`ui_sun_icon.png`](http://commons.wikimedia.org/wiki/File:2012-10-13_15-29-35-sun.jpg)
+
+Fibonacci: (Public domain, CC-BY 4.0)
+
+  * [`ui_xyz_off_icon.png`](http://commons.wikimedia.org/wiki/File:No_sign.svg)
+
+Gregory Maxwell: (Public domain, CC-BY 4.0)
+
+  * [`ui_ok_icon.png`](http://commons.wikimedia.org/wiki/File:Yes_check.svg)
+
+Adrien Facélina: (LGPL v2.1+)
+
+  * [`inventory_plus_worldedit_gui.png`](http://commons.wikimedia.org/wiki/File:Erioll_world_2.svg)
+
+Other files from Wikimedia Commons:
+
+  * [`ui_gohome_icon.png` / `ui_home_icon.png` / `ui_sethome_icon.png`](http://commons.wikimedia.org/wiki/File:Home_256x256.png) (GPL v2+)
+
+RealBadAngel: (CC-BY-4.0)
+
+  * Everything else.

api.lua

@@ -1,89 +1,297 @@
+local S = minetest.get_translator("unified_inventory")
+local F = minetest.formspec_escape
 
 -- 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
+		if not rev_aliases[target] then rev_aliases[target] = {} end
+		table.insert(rev_aliases[target], source)
+	end
 	unified_inventory.items_list = {}
 	for name, def in pairs(minetest.registered_items) do
 		if (not def.groups.not_in_creative_inventory or
 		   def.groups.not_in_creative_inventory == 0) and
 		   def.description and def.description ~= "" then
 			table.insert(unified_inventory.items_list, name)
-			local recipes = minetest.get_all_craft_recipes(name)
-			if recipes then
-				unified_inventory.crafts_table[name] = recipes
-			else
-				unified_inventory.crafts_table[name] = {}
+			local all_names = rev_aliases[name] or {}
+			table.insert(all_names, name)
+			for _, player_name in ipairs(all_names) do
+				local recipes = minetest.get_all_craft_recipes(player_name)
+				if recipes then
+					for _, recipe in ipairs(recipes) do
+
+						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 unified_inventory.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
+							unified_inventory.register_craft(recipe)
+						end
+					end
+				end
 			end
 		end
 	end
 	table.sort(unified_inventory.items_list)
 	unified_inventory.items_list_size = #unified_inventory.items_list
 	print("Unified Inventory. inventory size: "..unified_inventory.items_list_size)
+	for _, name in ipairs(unified_inventory.items_list) do
+		local def = minetest.registered_items[name]
+		-- Simple drops
+		if type(def.drop) == "string" then
+			local dstack = ItemStack(def.drop)
+			if not dstack:is_empty() and dstack:get_name() ~= name then
+				unified_inventory.register_craft({
+					type = "digging",
+					items = {name},
+					output = def.drop,
+					width = 0,
+				})
+
+			end
+		-- Complex drops. Yes, it's really complex!
+		elseif type(def.drop) == "table" then
+			--[[ Extract single items from the table and save them into dedicated tables
+			to register them later, in order to avoid duplicates. These tables counts
+			the total number of guaranteed drops and drops by chance (“maybes”) for each item.
+			For “maybes”, the final count is the theoretical maximum number of items, not
+			neccessarily the actual drop count. ]]
+			local drop_guaranteed = {}
+			local drop_maybe = {}
+			-- This is for catching an obscure corner case: If the top items table has
+			-- only items with rarity = 1, but max_items is set, then only the first
+			-- max_items will be part of the drop, any later entries are logically
+			-- impossible, so this variable is for keeping track of this
+			local max_items_left = def.drop.max_items
+			-- For checking whether we still encountered only guaranteed only so far;
+			-- for the first “maybe” item it will become false which will cause ALL
+			-- later items to be considered “maybes”.
+			-- A common idiom is:
+			-- { max_items 1, { items = {
+			--	{ items={"example:1"}, rarity = 5 },
+			-- 	{ items={"example:2"}, rarity = 1 }, }}}
+			-- example:2 must be considered a “maybe” because max_items is set and it
+			-- appears after a “maybe”
+			local max_start = true
+			-- Let's iterate through the items madness!
+			-- Handle invalid drop entries gracefully.
+			local drop_items = def.drop.items or { }
+			for i=1,#drop_items do
+				if max_items_left ~= nil and max_items_left <= 0 then break end
+				local itit = drop_items[i]
+				for j=1,#itit.items do
+					local dstack = ItemStack(itit.items[j])
+					if not dstack:is_empty() and dstack:get_name() ~= name then
+						local dname = dstack:get_name()
+						local dcount = dstack:get_count()
+						-- Guaranteed drops AND we are not yet in “maybe mode”
+						if #itit.items == 1 and itit.rarity == 1 and max_start then
+							if drop_guaranteed[dname] == nil then
+								drop_guaranteed[dname] = 0
+							end
+							drop_guaranteed[dname] = drop_guaranteed[dname] + dcount
+
+							if max_items_left ~= nil then
+								max_items_left = max_items_left - 1
+								if max_items_left <= 0 then break end
+							end
+						-- Drop was a “maybe”
+						else
+							if max_items_left ~= nil then max_start = false end
+							if drop_maybe[dname] == nil then
+								drop_maybe[dname] = 0
+							end
+							drop_maybe[dname] = drop_maybe[dname] + dcount
+						end
+					end
+				end
+			end
+			for itemstring, count in pairs(drop_guaranteed) do
+				unified_inventory.register_craft({
+					type = "digging",
+					items = {name},
+					output = itemstring .. " " .. count,
+					width = 0,
+				})
+			end
+			for itemstring, count in pairs(drop_maybe) do
+				unified_inventory.register_craft({
+					type = "digging_chance",
+					items = {name},
+					output = itemstring .. " " .. count,
+					width = 0,
+				})
+			end
+		end
+	end
+	for _, recipes in pairs(unified_inventory.crafts_for.recipe) do
+		for _, recipe in ipairs(recipes) do
+			local ingredient_items = {}
+			for _, spec in pairs(recipe.items) do
+				local matches_spec = unified_inventory.canonical_item_spec_matcher(spec)
+				for _, name in ipairs(unified_inventory.items_list) do
+					if matches_spec(name) then
+						ingredient_items[name] = true
+					end
+				end
+			end
+			for name, _ in pairs(ingredient_items) do
+				if unified_inventory.crafts_for.usage[name] == nil then
+					unified_inventory.crafts_for.usage[name] = {}
+				end
+				table.insert(unified_inventory.crafts_for.usage[name], recipe)
+			end
+		end
+	end
 end)
 
 
 -- load_home
 local function load_home()
 	local input = io.open(unified_inventory.home_filename, "r")
-	if input then
-		while true do
-			local x = input:read("*n")
-			if x == nil then
-				break
-			end
-			local y = input:read("*n")
-			local z = input:read("*n")
-			local name = input:read("*l")
-			unified_inventory.home_pos[name:sub(2)] = {x = x, y = y, z = z}
-		end
-		io.close(input)
-	else
+	if not input then
 		unified_inventory.home_pos = {}
+		return
 	end
+	while true do
+		local x = input:read("*n")
+		if not x then break end
+		local y = input:read("*n")
+		local z = input:read("*n")
+		local name = input:read("*l")
+		unified_inventory.home_pos[name:sub(2)] = {x = x, y = y, z = z}
+	end
+	io.close(input)
 end
 load_home()
 
 function unified_inventory.set_home(player, pos)
 	local player_name = player:get_player_name()
-	unified_inventory.home_pos[player_name] = pos
+	unified_inventory.home_pos[player_name] = vector.round(pos)
 	-- save the home data from the table to the file
 	local output = io.open(unified_inventory.home_filename, "w")
 	for k, v in pairs(unified_inventory.home_pos) do
-		if v ~= nil then
-			output:write(math.floor(v.x).." "
-					..math.floor(v.y).." "
-					..math.floor(v.z).." "
-					..k.."\n")
-		end
+		output:write(v.x.." "..v.y.." "..v.z.." "..k.."\n")
 	end
 	io.close(output)
 end
 
 function unified_inventory.go_home(player)
 	local pos = unified_inventory.home_pos[player:get_player_name()]
-	if pos ~= nil then
-		player:setpos(pos)
+	if pos then
+		player:set_pos(pos)
+		return true
 	end
+	return false
 end
 
 -- register_craft
 function unified_inventory.register_craft(options)
-	if  options.output == nil then
+	if not options.output then
 		return
 	end
 	local itemstack = ItemStack(options.output)
 	if itemstack:is_empty() then
 		return
 	end
-	if unified_inventory.crafts_table[itemstack:get_name()] == nil then
-		unified_inventory.crafts_table[itemstack:get_name()] = {}
+	if options.type == "normal" and options.width == 0 then
+		options = { type = "shapeless", items = options.items, output = options.output, width = 0 }
 	end
-	table.insert(unified_inventory.crafts_table[itemstack:get_name()],options)
+	if not unified_inventory.crafts_for.recipe[itemstack:get_name()] then
+		unified_inventory.crafts_for.recipe[itemstack:get_name()] = {}
+	end
+	table.insert(unified_inventory.crafts_for.recipe[itemstack:get_name()],options)
 end
 
+
+local craft_type_defaults = {
+	width = 3,
+	height = 3,
+	uses_crafting_grid = false,
+}
+
+
+function unified_inventory.craft_type_defaults(name, options)
+	if not options.description then
+		options.description = name
+	end
+	setmetatable(options, {__index = craft_type_defaults})
+	return options
+end
+
+
+function unified_inventory.register_craft_type(name, options)
+	unified_inventory.registered_craft_types[name] =
+			unified_inventory.craft_type_defaults(name, options)
+end
+
+
+unified_inventory.register_craft_type("normal", {
+	description = F(S("Crafting")),
+	icon = "ui_craftgrid_icon.png",
+	width = 3,
+	height = 3,
+	get_shaped_craft_width = function (craft) return craft.width end,
+	dynamic_display_size = function (craft)
+		local w = craft.width
+		local h = math.ceil(table.maxn(craft.items) / craft.width)
+		local g = w < h and h or w
+		return { width = g, height = g }
+	end,
+	uses_crafting_grid = true,
+})
+
+
+unified_inventory.register_craft_type("shapeless", {
+	description = F(S("Mixing")),
+	icon = "ui_craftgrid_icon.png",
+	width = 3,
+	height = 3,
+	dynamic_display_size = function (craft)
+		local maxn = table.maxn(craft.items)
+		local g = 1
+		while g*g < maxn do g = g + 1 end
+		return { width = g, height = g }
+	end,
+	uses_crafting_grid = true,
+})
+
+
+unified_inventory.register_craft_type("cooking", {
+	description = F(S("Cooking")),
+	icon = "default_furnace_front.png",
+	width = 1,
+	height = 1,
+})
+
+
+unified_inventory.register_craft_type("digging", {
+	description = F(S("Digging")),
+	icon = "default_tool_steelpick.png",
+	width = 1,
+	height = 1,
+})
+
+unified_inventory.register_craft_type("digging_chance", {
+	description = "Digging (by chance)",
+	icon = "default_tool_steelpick.png^[transformFY.png",
+	width = 1,
+	height = 1,
+})
+
 function unified_inventory.register_page(name, def)
 	unified_inventory.pages[name] = def
 end
 
+
 function unified_inventory.register_button(name, def)
 	if not def.action then
 		def.action = function(player)
@@ -94,9 +302,8 @@ function unified_inventory.register_button(name, def)
 	table.insert(unified_inventory.buttons, def)
 end
 
+
 function unified_inventory.is_creative(playername)
-	if minetest.check_player_privs(playername, {creative=true}) or
-	   minetest.setting_getbool("creative_mode") then
-		return true
-	end
+	return minetest.check_player_privs(playername, {creative=true})
+		or minetest.settings:get_bool("creative_mode")
 end

bags.lua

@@ -1,48 +1,97 @@
--- Bags for Minetest
+--[[
+Bags for Minetest
 
--- Copyright (c) 2012 cornernote, Brett O'Donnell <cornernote@gmail.com>
--- License: GPLv3
+Copyright (c) 2012 cornernote, Brett O'Donnell <cornernote@gmail.com>
+License: GPLv3
+--]]
+
+local S = minetest.get_translator("unified_inventory")
+local F = minetest.formspec_escape
+local bags_inv_bg_prefix = "image[-0.1,1.0;10.05,"
 
 unified_inventory.register_page("bags", {
 	get_formspec = function(player)
 		local player_name = player:get_player_name()
-		local formspec = "background[0.06,0.99;7.92,7.52;ui_bags_main_form.png]"
-		formspec = formspec.."label[0,0;Bags]"
-		formspec = formspec.."button[0,2;2,0.5;bag1;Bag 1]"
-		formspec = formspec.."button[2,2;2,0.5;bag2;Bag 2]"
-		formspec = formspec.."button[4,2;2,0.5;bag3;Bag 3]"
-		formspec = formspec.."button[6,2;2,0.5;bag4;Bag 4]"
-		formspec = formspec.."listcolors[#00000000;#00000000]"
-		formspec = formspec.."list[detached:"..player_name.."_bags;bag1;0.5,1;1,1;]"
-		formspec = formspec.."list[detached:"..player_name.."_bags;bag2;2.5,1;1,1;]"
-		formspec = formspec.."list[detached:"..player_name.."_bags;bag3;4.5,1;1,1;]"
-		formspec = formspec.."list[detached:"..player_name.."_bags;bag4;6.5,1;1,1;]"
-		return {formspec=formspec}
+		return { formspec = table.concat({
+			string.gsub(unified_inventory.standard_inv_bg, "YYY", "4.4"),
+			bags_inv_bg_prefix.."1.175;ui_bags_header.png]",
+			"label[0,0;" .. F(S("Bags")) .. "]",
+			"button[0,2.2;2,0.5;bag1;" .. F(S("Bag @1", 1)) .. "]",
+			"button[2,2.2;2,0.5;bag2;" .. F(S("Bag @1", 2)) .. "]",
+			"button[4,2.2;2,0.5;bag3;" .. F(S("Bag @1", 3)) .. "]",
+			"button[6,2.2;2,0.5;bag4;" .. F(S("Bag @1", 4)) .. "]",
+			"listcolors[#00000000;#00000000]",
+			"list[detached:" .. F(player_name) .. "_bags;bag1;0.5,1.1;1,1;]",
+			"list[detached:" .. F(player_name) .. "_bags;bag2;2.5,1.1;1,1;]",
+			"list[detached:" .. F(player_name) .. "_bags;bag3;4.5,1.1;1,1;]",
+			"list[detached:" .. F(player_name) .. "_bags;bag4;6.5,1.1;1,1;]"
+		}) }
 	end,
 })
 
 unified_inventory.register_button("bags", {
 	type = "image",
 	image = "ui_bags_icon.png",
+	tooltip = S("Bags"),
+	hide_lite=true
 })
 
-for i = 1, 4 do
-	unified_inventory.register_page("bag"..i, {
+local function get_player_bag_stack(player, i)
+	return minetest.get_inventory({
+		type = "detached",
+		name = player:get_player_name() .. "_bags"
+	}):get_stack("bag" .. i, 1)
+end
+
+for bag_i = 1, 4 do
+	unified_inventory.register_page("bag" .. bag_i, {
 		get_formspec = function(player)
-			local stack = player:get_inventory():get_stack("bag"..i, 1)
+			local stack = get_player_bag_stack(player, bag_i)
 			local image = stack:get_definition().inventory_image
-			local formspec = "image[7,0;1,1;"..image.."]"
-			formspec = formspec.."listcolors[#00000000;#00000000]"
-			formspec = formspec.."list[current_player;bag"..i.."contents;0,1;8,3;]"
+			local fs = {
+				string.gsub(unified_inventory.standard_inv_bg, "YYY", "4.4"),
+				"image[7,0;1,1;" .. image .. "]",
+				"label[0,0;" .. F(S("Bag @1", bag_i)) .. "]",
+				"listcolors[#00000000;#00000000]",
+				"list[current_player;bag" .. bag_i .. "contents;0,1.1;8,3;]",
+				"listring[current_name;bag" .. bag_i .. "contents]",
+				"listring[current_player;main]",
+			}
 			local slots = stack:get_definition().groups.bagslots
 			if slots == 8 then
-				formspec = formspec.."background[0.06,0.99;7.92,7.52;ui_bags_sm_form.png]"
+					fs[#fs + 1] = bags_inv_bg_prefix.."1.175;ui_bags_inv_small.png]"
 			elseif slots == 16 then
-				formspec = formspec.."background[0.06,0.99;7.92,7.52;ui_bags_med_form.png]"
+					fs[#fs + 1] = bags_inv_bg_prefix.."2.35;ui_bags_inv_medium.png]"
 			elseif slots == 24 then
-				formspec = formspec.."background[0.06,0.99;7.92,7.52;ui_bags_lg_form.png]"
+					fs[#fs + 1] = bags_inv_bg_prefix.."3.525;ui_bags_inv_large.png]"
 			end
-			return {formspec=formspec}
+			local player_name = player:get_player_name() -- For if statement.
+			if unified_inventory.trash_enabled
+					or unified_inventory.is_creative(player_name)
+					or minetest.get_player_privs(player_name).give then
+				fs[#fs + 1] = "image[5.91,-0.06;1.21,1.15;ui_bags_trash.png]"
+						.. "list[detached:trash;main;6,0.1;1,1;]"
+			end
+			local inv = player:get_inventory()
+			for i = 1, 4 do
+				local def = get_player_bag_stack(player, i):get_definition()
+				if def.groups.bagslots then
+					local list_name = "bag" .. i .. "contents"
+					local size = inv:get_size(list_name)
+					local used = 0
+					for si = 1, size do
+						local stk = inv:get_stack(list_name, si)
+						if not stk:is_empty() then
+							used = used + 1
+						end
+					end
+					local img = def.inventory_image
+					local label = F(S("Bag @1", i)) .. "\n" .. used .. "/" .. size
+					fs[#fs + 1] = string.format("image_button[%i,0;1,1;%s;bag%i;%s]",
+							i + 1, img, i, label)
+				end
+			end
+			return { formspec = table.concat(fs) }
 		end,
 	})
 end
@@ -52,98 +101,178 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 		return
 	end
 	for i = 1, 4 do
-		if fields["bag"..i] then
-			local stack = player:get_inventory():get_stack("bag"..i, 1)
+		if fields["bag" .. i] then
+			local stack = get_player_bag_stack(player, i)
 			if not stack:get_definition().groups.bagslots then
 				return
 			end
-			unified_inventory.set_inventory_formspec(player, "bag"..i)
+			unified_inventory.set_inventory_formspec(player, "bag" .. i)
 			return
 		end
 	end
 end)
 
-minetest.register_on_joinplayer(function(player)
+local function save_bags_metadata(player, bags_inv)
+	local is_empty = true
+	local bags = {}
+	for i = 1, 4 do
+		local bag = "bag" .. i
+		if not bags_inv:is_empty(bag) then
+			-- Stack limit is 1, otherwise use stack:to_string()
+			bags[i] = bags_inv:get_stack(bag, 1):get_name()
+			is_empty = false
+		end
+	end
+	local meta = player:get_meta()
+	if is_empty then
+		meta:set_string("unified_inventory:bags", nil)
+	else
+		meta:set_string("unified_inventory:bags",
+			minetest.serialize(bags))
+	end
+end
+
+local function load_bags_metadata(player, bags_inv)
 	local player_inv = player:get_inventory()
-	local bags_inv = minetest.create_detached_inventory(player:get_player_name().."_bags",{
+	local meta = player:get_meta()
+	local bags_meta = meta:get("unified_inventory:bags")
+	local bags = bags_meta and minetest.deserialize(bags_meta) or {}
+	local dirty_meta = false
+	if not bags_meta then
+		-- Backwards compatiblity
+		for i = 1, 4 do
+			local bag = "bag" .. i
+			if not player_inv:is_empty(bag) then
+				-- Stack limit is 1, otherwise use stack:to_string()
+				bags[i] = player_inv:get_stack(bag, 1):get_name()
+				dirty_meta = true
+			end
+		end
+	end
+	-- Fill detached slots
+	for i = 1, 4 do
+		local bag = "bag" .. i
+		bags_inv:set_size(bag, 1)
+		bags_inv:set_stack(bag, 1, bags[i] or "")
+	end
+
+	if dirty_meta then
+		-- Requires detached inventory to be set up
+		save_bags_metadata(player, bags_inv)
+	end
+
+	-- Clean up deprecated garbage after saving
+	for i = 1, 4 do
+		local bag = "bag" .. i
+		player_inv:set_size(bag, 0)
+	end
+end
+
+minetest.register_on_joinplayer(function(player)
+	local player_name = player:get_player_name()
+	local bags_inv = minetest.create_detached_inventory(player_name .. "_bags",{
 		on_put = function(inv, listname, index, stack, player)
-			player:get_inventory():set_stack(listname, index, stack)
-			player:get_inventory():set_size(listname.."contents",
+			player:get_inventory():set_size(listname .. "contents",
 					stack:get_definition().groups.bagslots)
-		end,
-		on_take = function(inv, listname, index, stack, player)
-			player:get_inventory():set_stack(listname, index, nil)
+			save_bags_metadata(player, inv)
 		end,
 		allow_put = function(inv, listname, index, stack, player)
-			if stack:get_definition().groups.bagslots then
+			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
-			else
-				return 0
 			end
-		end,
-		allow_take = function(inv, listname, index, stack, player)
-			if player:get_inventory():is_empty(listname.."contents") then
-				return stack:get_count()
-			else
-				return 0
+
+			-- 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
-		end,
-		allow_move = function(inv, from_list, from_index, to_list, to_index, count, player)
+			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,
-	})
-	for i=1,4 do
-		local bag = "bag"..i
-		player_inv:set_size(bag, 1)
-		bags_inv:set_size(bag, 1)
-		bags_inv:set_stack(bag, 1, player_inv:get_stack(bag, 1))
-	end
+		allow_take = function(inv, listname, index, stack, player)
+			if player:get_inventory():is_empty(listname .. "contents") then
+				return stack:get_count()
+			end
+			return 0
+		end,
+		on_take = function(inv, listname, index, stack, player)
+			player:get_inventory():set_size(listname .. "contents", 0)
+			save_bags_metadata(player, inv)
+		end,
+		allow_move = function()
+			return 0
+		end,
+	}, player_name)
+
+	load_bags_metadata(player, bags_inv)
 end)
 
 -- register bag tools
 minetest.register_tool("unified_inventory:bag_small", {
-	description = "Small Bag",
+	description = S("Small Bag"),
 	inventory_image = "bags_small.png",
 	groups = {bagslots=8},
 })
 
 minetest.register_tool("unified_inventory:bag_medium", {
-	description = "Medium Bag",
+	description = S("Medium Bag"),
 	inventory_image = "bags_medium.png",
 	groups = {bagslots=16},
 })
 
 minetest.register_tool("unified_inventory:bag_large", {
-	description = "Large Bag",
+	description = S("Large Bag"),
 	inventory_image = "bags_large.png",
 	groups = {bagslots=24},
 })
 
 -- register bag crafts
-minetest.register_craft({
-	output = "unified_inventory:bag_small",
-	recipe = {
-		{"",           "default:stick", ""},
-		{"group:wood", "group:wood",    "group:wood"},
-		{"group:wood", "group:wood",    "group:wood"},
-	},
-})
+if minetest.get_modpath("farming") ~= nil then
+	minetest.register_craft({
+		output = "unified_inventory:bag_small",
+		recipe = {
+			{"",           "farming:string", ""},
+			{"group:wool", "group:wool",     "group:wool"},
+			{"group:wool", "group:wool",     "group:wool"},
+		},
+	})
 
-minetest.register_craft({
-	output = "unified_inventory:bag_medium",
-	recipe = {
-		{"",              "",                            ""},
-		{"default:stick", "unified_inventory:bag_small", "default:stick"},
-		{"default:stick", "unified_inventory:bag_small", "default:stick"},
-	},
-})
-
-minetest.register_craft({
-	output = "unified_inventory:bag_large",
-	recipe = {
-		{"",              "",                             ""},
-		{"default:stick", "unified_inventory:bag_medium", "default:stick"},
-		{"default:stick", "unified_inventory:bag_medium", "default:stick"},
-    },
-})
+	minetest.register_craft({
+		output = "unified_inventory:bag_medium",
+		recipe = {
+			{"",               "",                            ""},
+			{"farming:string", "unified_inventory:bag_small", "farming:string"},
+			{"farming:string", "unified_inventory:bag_small", "farming:string"},
+		},
+	})
 
+	minetest.register_craft({
+		output = "unified_inventory:bag_large",
+		recipe = {
+			{"",               "",                             ""},
+			{"farming:string", "unified_inventory:bag_medium", "farming:string"},
+			{"farming:string", "unified_inventory:bag_medium", "farming:string"},
+	    },
+	})
+end

callbacks.lua

@@ -1,36 +1,33 @@
+local function default_refill(stack)
+	stack:set_count(stack:get_stack_max())
+	local itemdef = minetest.registered_items[stack:get_name()]
+	if itemdef
+	and (itemdef.wear_represents or "mechanical_wear") == "mechanical_wear"
+	and stack:get_wear() ~= 0 then
+		stack:set_wear(0)
+	end
+	return stack
+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.filtered_items_list[player_name] =
-			unified_inventory.items_list
+	unified_inventory.items_list
 	unified_inventory.activefilter[player_name] = ""
-	unified_inventory.apply_filter(player, "")
+	unified_inventory.active_search_direction[player_name] = "nochange"
+	unified_inventory.apply_filter(player, "", "nochange")
+	unified_inventory.current_searchbox[player_name] = ""
 	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)
-
-	-- Crafting guide inventories
-	local inv = minetest.create_detached_inventory(player_name.."craftrecipe", {
-		allow_put = function(inv, listname, index, stack, player)
-			return 0
-		end,
-		allow_take = function(inv, listname, index, stack, player)
-			return 0
-		end,
-		allow_move = function(inv, from_list, from_index, to_list,
-				to_index, count, player)
-			return 0
-		end,
-	})
-	inv:set_size("output", 1)
+	unified_inventory.default)
 
 	-- Refill slot
 	local refill = minetest.create_detached_inventory(player_name.."refill", {
 		allow_put = function(inv, listname, index, stack, player)
-			local player_name = player:get_player_name()
 			if unified_inventory.is_creative(player_name) then
 				return stack:get_count()
 			else
@@ -38,21 +35,39 @@ minetest.register_on_joinplayer(function(player)
 			end
 		end,
 		on_put = function(inv, listname, index, stack, player)
-			local player_name = player:get_player_name()
-			stack:set_count(stack:get_stack_max())
+			local handle_refill = (minetest.registered_items[stack:get_name()] or {}).on_refill or default_refill
+			stack = handle_refill(stack)
 			inv:set_stack(listname, index, stack)
 			minetest.sound_play("electricity",
 					{to_player=player_name, gain = 1.0})
 		end,
-	})
+	}, player_name)
 	refill:set_size("main", 1)
 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)
+	unified_inventory.current_searchbox[player_name] = search_text
+	unified_inventory.set_inventory_formspec(player,
+			unified_inventory.current_page[player_name])
+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
-	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 ~= unified_inventory.current_searchbox[player_name] then
+		unified_inventory.current_searchbox[player_name] = fields.searchbox
+	end
 
 	for i, def in pairs(unified_inventory.buttons) do
 		if fields[def.name] then
@@ -65,40 +80,28 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 
 	-- Inventory page controls
 	local start = math.floor(
-		unified_inventory.current_index[player_name] / 80 + 1)
+		unified_inventory.current_index[player_name] / ui_peruser.items_per_page + 1)
 	local start_i = start
 	local pagemax = math.floor(
 		(#unified_inventory.filtered_items_list[player_name] - 1)
-		/ (80) + 1)
+		/ (ui_peruser.items_per_page) + 1)
 
 	if fields.start_list then
-		minetest.sound_play("paperflip1",
-				{to_player=player_name, gain = 1.0})
 		start_i = 1
 	end
 	if fields.rewind1 then
-		minetest.sound_play("paperflip1",
-				{to_player=player_name, gain = 1.0})
 		start_i = start_i - 1
 	end
 	if fields.forward1 then
-		minetest.sound_play("paperflip1",
-				{to_player=player_name, gain = 1.0})
 		start_i = start_i + 1
 	end
 	if fields.rewind3 then
-		minetest.sound_play("paperflip1",
-				{to_player=player_name, gain = 1.0})
 		start_i = start_i - 3
 	end
 	if fields.forward3 then
-		minetest.sound_play("paperflip1",
-				{to_player=player_name, gain = 1.0})
 		start_i = start_i + 3
 	end
 	if fields.end_list then
-		minetest.sound_play("paperflip1",
-				{to_player=player_name, gain = 1.0})
 		start_i = pagemax
 	end
 	if start_i < 1 then
@@ -107,78 +110,105 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	if start_i > pagemax then
 		start_i = pagemax
 	end
-	if not (start_i	== start) then
-		unified_inventory.current_index[player_name] = (start_i - 1) * 80 + 1
+	if start_i ~= start then
+		minetest.sound_play("paperflip1",
+				{to_player=player_name, gain = 1.0})
+		unified_inventory.current_index[player_name] = (start_i - 1) * ui_peruser.items_per_page + 1
 		unified_inventory.set_inventory_formspec(player,
 				unified_inventory.current_page[player_name])
 	end
 
-	local clicked_item = nil
+	-- Check clicked item image button
+	local clicked_item
 	for name, value in pairs(fields) do
-		if string.sub(name, 1, 12) == "item_button_" then
-			clicked_item = string.sub(name, 13)
+		local new_dir, mangled_item = string.match(name, "^item_button_([a-z]+)_(.*)$")
+		if new_dir and mangled_item then
+			clicked_item = unified_inventory.demangle_for_formspec(mangled_item)
+			if string.sub(clicked_item, 1, 6) == "group:" then
+				-- Change search filter to this group
+				apply_new_filter(player, clicked_item, new_dir)
+				return
+			end
+			if new_dir == "recipe" or new_dir == "usage" then
+				unified_inventory.current_craft_direction[player_name] = new_dir
+			end
 			break
-		elseif string.sub(name, 1, 11) == "item_group_" then
-			minetest.sound_play("click",
-					{to_player=player_name, gain = 0.1})
-			unified_inventory.apply_filter(player, "group:"..string.sub(name, 12))
-			return
 		end
 	end
 	if clicked_item then
 		minetest.sound_play("click",
 				{to_player=player_name, gain = 0.1})
 		local page = unified_inventory.current_page[player_name]
-		if not unified_inventory.is_creative(player_name) then
+		local player_creative = unified_inventory.is_creative(player_name)
+		if not player_creative then
 			page = "craftguide"
 		end
 		if page == "craftguide" then
 			unified_inventory.current_item[player_name] = clicked_item
 			unified_inventory.alternate[player_name] = 1
-			unified_inventory.set_inventory_formspec(player,
-					"craftguide")
-		else
-			if unified_inventory.is_creative(player_name) then
-				local inv = player:get_inventory()
-				local stack = ItemStack(clicked_item)
-				stack:set_count(stack:get_stack_max())
-				if inv:room_for_item("main", stack) then
-					inv:add_item("main", stack)
-				end
+			unified_inventory.set_inventory_formspec(player, "craftguide")
+		elseif player_creative then
+			-- Creative page: Add entire stack to inventory
+			local inv = player:get_inventory()
+			local stack = ItemStack(clicked_item)
+			stack:set_count(stack:get_stack_max())
+			if inv:room_for_item("main", stack) then
+				inv:add_item("main", stack)
 			end
 		end
 	end
 
-	if fields.searchbutton then
-		unified_inventory.apply_filter(player, fields.searchbox)
+	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 button
+	-- alternate buttons
+	if not (fields.alternate or fields.alternate_prev) then
+		return
+	end
+	minetest.sound_play("click",
+			{to_player=player_name, gain = 0.1})
+	local item_name = unified_inventory.current_item[player_name]
+	if not item_name then
+		return
+	end
+	local crafts = unified_inventory.crafts_for[unified_inventory.current_craft_direction[player_name]][item_name]
+	if not crafts then
+		return
+	end
+	local alternates = #crafts
+	if alternates <= 1 then
+		return
+	end
+	local alternate
 	if fields.alternate then
-		minetest.sound_play("click",
-				{to_player=player_name, gain = 0.1})
-		local item_name = unified_inventory.current_item[player_name]
-		if item_name then
-			local alternates = 0
-			local alternate = unified_inventory.alternate[player_name]
-			local crafts = unified_inventory.crafts_table[item_name]
-			if crafts ~= nil then
-				alternates = #crafts
-			end
-			if alternates > 1 then
-				alternate = alternate + 1
-				if alternate > alternates then
-					alternate = 1
-				end
-				unified_inventory.alternate[player_name] = alternate
-				unified_inventory.set_inventory_formspec(player,
-						unified_inventory.current_page[player_name])
-			end
+		alternate = unified_inventory.alternate[player_name] + 1
+		if alternate > alternates then
+			alternate = 1
+		end
+	elseif fields.alternate_prev then
+		alternate = unified_inventory.alternate[player_name] - 1
+		if alternate < 1 then
+			alternate = alternates
 		end
 	end
+	unified_inventory.alternate[player_name] = alternate
+	unified_inventory.set_inventory_formspec(player,
+			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.delete_detached_inventory(player_name.."craftrecipe")
+		minetest.delete_detached_inventory(player_name.."refill")
+	end)
+end

depends.txt

@@ -1 +0,0 @@
-creative?

doc/mod_api.txt

@@ -0,0 +1,95 @@
+unified_inventory API
+=====================
+
+This file provides information about the API of unified_inventory.
+
+
+Misc functions
+--------------
+Grouped by use-case, afterwards sorted alphabetically.
+
+* `unified_inventory.is_creative(name)`
+	* Checks whether creative is enabled or the player has `creative`
+
+
+Pages
+-----
+
+Register a new page: The callback inside this function is called on user input.
+
+	unified_inventory.register_page("pagename", {
+		get_formspec = function(player)
+			-- ^ `player` is an `ObjectRef`
+			-- Compute the formspec string here
+			return {
+				formspec = "button[2,2;2,1;mybutton;Press me]",
+				-- ^ Final form of the formspec to display
+				draw_inventory = false,   -- default `true`
+				-- ^ Optional. Hides the player's `main` inventory list
+				draw_item_list = false,   -- default `true`
+				-- ^ Optional. Hides the item list on the right side
+				formspec_prepend = false, -- default `false`
+				-- ^ Optional. When `false`: Disables the formspec prepend
+			}
+		end,
+	})
+
+
+Buttons
+-------
+
+Register a new button for the bottom row:
+
+	unified_inventory.register_button("skins", {
+		type = "image",
+		image = "skins_skin_button.png",
+		tooltip = "Skins",
+		hide_lite = true
+		-- ^ Button is hidden when following two conditions are met:
+		--   Configuration line `unified_inventory_lite = true`
+		--   Player does not have the privilege `ui_full`
+	})
+
+
+
+Crafting
+--------
+
+The code blocks below document each possible parameter using exemplary values.
+
+Provide information to display custom craft types:
+
+	unified_inventory.register_craft_type("mytype", {
+		-- ^ Unique identifier for `register_craft`
+		description = "Sample Craft",
+		-- ^ Text shown below the crafting arrow
+		icon = "dummy.png",
+		-- ^ Image shown above the crafting arrow
+		width = 3,
+		height = 3,
+		-- ^ Maximal input dimensions of the recipes
+		dynamic_display_size = function(craft)
+			-- ^ `craft` is the definition from `register_craft`
+			return {
+				width = 2,
+				height = 3
+			}
+		end,
+		-- ^ Optional callback to change the displayed recipe size
+		uses_crafting_grid = true,
+	})
+
+Register a non-standard craft recipe:
+
+	unified_inventory.register_craft({
+		output = "default:foobar",
+		type = "mytype",
+		-- ^ Standard craft type or custom (see `register_craft_type`)
+		items = {
+			{ "default:foo" },
+			{ "default:bar" }
+		},
+		width = 3,
+		-- ^ Same as `minetest.register_recipe`
+	})
+

group.lua

@@ -0,0 +1,127 @@
+local S = minetest.get_translator("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()
+	if specname:sub(1, 6) ~= "group:" then
+		return nil, 0
+	end
+	local group_names = specname:sub(7):split(",")
+	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
+-- is represented by that item, with the single-item status signalled
+-- in the "sole" field.  If the group contains no items at all, the item
+-- field will be nil.
+--
+-- Within a multiple-item group, we prefer to use an item that has the
+-- same specific name as the group, and if there are more than one of
+-- those items we prefer the one registered for the group by a mod.
+-- Among equally-preferred items, we just pick the one with the
+-- lexicographically earliest name.
+--
+-- The parameter to this function isn't just a single group name.
+-- It may be a comma-separated list of group names.  This is really a
+-- "group:..." ingredient specification, minus the "group:" prefix.
+
+local function compute_group_item(group_name_list)
+	local group_names = group_name_list:split(",")
+	local candidate_items = {}
+	for itemname, itemdef in pairs(minetest.registered_items) do
+		if (itemdef.groups.not_in_creative_inventory or 0) == 0 then
+			local all = true
+			for _, group_name in ipairs(group_names) do
+				if (itemdef.groups[group_name] or 0) == 0 then
+					all = false
+				end
+			end
+			if all then table.insert(candidate_items, itemname) end
+		end
+	end
+	local num_candidates = #candidate_items
+	if num_candidates == 0 then
+		return {sole = true}
+	elseif num_candidates == 1 then
+		return {item = candidate_items[1], sole = true}
+	end
+	local is_group = {}
+	local registered_rep = {}
+	for _, group_name in ipairs(group_names) do
+		is_group[group_name] = true
+		local rep = unified_inventory.registered_group_items[group_name]
+		if rep then registered_rep[rep] = true end
+	end
+	local bestitem = ""
+	local bestpref = 0
+	for _, item in ipairs(candidate_items) do
+		local pref
+		if registered_rep[item] then
+			pref = 4
+		elseif string.sub(item, 1, 8) == "default:" and is_group[string.sub(item, 9)] then
+			pref = 3
+		elseif is_group[item:gsub("^[^:]*:", "")] then
+			pref = 2
+		else
+			pref = 1
+		end
+		if pref > bestpref or (pref == bestpref and item < bestitem) then
+			bestitem = item
+			bestpref = pref
+		end
+	end
+	return {item = bestitem, sole = false}
+end
+
+
+local group_item_cache = {}
+
+function unified_inventory.get_group_item(group_name)
+	if not group_item_cache[group_name] then
+		group_item_cache[group_name] = compute_group_item(group_name)
+	end
+	return group_item_cache[group_name]
+end
+

image_credits.txt

@@ -0,0 +1,69 @@
+bags_small.png:
+	http://www.clker.com/clipart-moneybag-empty.html
+
+bags_medium.png:
+	http://www.clker.com/clipart-backpack-1.html
+
+bags_large.png / ui_bags_icon.png:
+	http://www.clker.com/clipart-backpack-green-brown.html
+
+ui_craftguide_icon.png / ui_craft_icon.png
+	http://commons.wikimedia.org/wiki/File:Advancedsettings.png
+	
+ui_doubleleft_icon.png
+	http://commons.wikimedia.org/wiki/File:Media-seek-backward.svg
+
+ui_doubleright_icon.png
+	http://commons.wikimedia.org/wiki/File:Media-seek-forward.svg
+
+ui_left_icon.png / ui_right_icon.png
+	http://commons.wikimedia.org/wiki/File:Media-playback-start.svg
+
+ui_skip_backward_icon.png
+	http://commons.wikimedia.org/wiki/File:Media-skip-backward.svg
+
+ui_skip_forward_icon.png
+	http://commons.wikimedia.org/wiki/File:Media-skip-forward.svg
+
+ui_reset_icon.png
+	https://commons.wikimedia.org/wiki/File:Edit-clear.svg
+
+ui_gohome_icon.png / ui_home_icon.png / ui_sethome_icon.png
+	http://commons.wikimedia.org/wiki/File:Home_256x256.png
+
+ui_moon_icon.png
+	http://commons.wikimedia.org/wiki/File:FullMoon2010.jpg
+
+ui_sun_icon.png
+	http://commons.wikimedia.org/wiki/File:2012-10-13_15-29-35-sun.jpg
+
+ui_trash_icon.png
+	http://www.clker.com/clipart-29090.html
+	http://www.clker.com/clipart-trash.html
+
+ui_search_icon.png
+	http://www.clker.com/clipart-24887.html
+
+ui_off_icon.png / ui_on_icon.png
+	http://www.clker.com/clipart-on-off-switches.html
+
+ui_waypoints_icon.png
+	http://www.clker.com/clipart-map-pin-red.html
+
+ui_circular_arrows_icon.png
+	http://www.clker.com/clipart-circular-arrow-pattern.html
+
+ui_pencil_icon.pnc
+	http://www.clker.com/clipart-2256.html
+
+ui_waypoint_set_icon.png
+	http://www.clker.com/clipart-larger-flag.html
+
+ui_xyz_off_icon.png
+	http://commons.wikimedia.org/wiki/File:No_sign.svg
+
+ui_ok_icon.png
+	http://commons.wikimedia.org/wiki/File:Yes_check.svg
+
+inventory_plus_worldedit_gui.png
+	http://commons.wikimedia.org/wiki/File:Erioll_world_2.svg

init.lua

@@ -1,42 +1,82 @@
--- Unified Inventory for Minetest 0.4.8+
+-- Unified Inventory for Minetest >= 0.4.16
 
 local modpath = minetest.get_modpath(minetest.get_current_modname())
 local worldpath = minetest.get_worldpath()
 
 -- Data tables definitions
-unified_inventory = {}
-unified_inventory.activefilter = {}
-unified_inventory.alternate = {}
-unified_inventory.current_page = {}
-unified_inventory.current_index = {}
-unified_inventory.current_item = {}
-unified_inventory.crafts_table = {}
-unified_inventory.crafts_table_count = 0
-unified_inventory.players = {}
-unified_inventory.items_list_size = 0
-unified_inventory.items_list = {}
-unified_inventory.filtered_items_list_size = {}
-unified_inventory.filtered_items_list = {}
-unified_inventory.pages = {}
-unified_inventory.buttons = {}
+unified_inventory = {
+	activefilter = {},
+	active_search_direction = {},
+	alternate = {},
+	current_page = {},
+	current_searchbox = {},
+	current_index = {},
+	current_item = {},
+	current_craft_direction = {},
+	registered_craft_types = {},
+	crafts_for = {usage = {}, recipe = {} },
+	players = {},
+	items_list_size = 0,
+	items_list = {},
+	filtered_items_list_size = {},
+	filtered_items_list = {},
+	pages = {},
+	buttons = {},
 
--- Homepos stuff
-unified_inventory.home_pos = {}
-unified_inventory.home_filename =
-		worldpath.."/unified_inventory_home.home"
+	-- Homepos stuff
+	home_pos = {},
+	home_filename =	worldpath.."/unified_inventory_home.home",
 
--- Default inventory page
-unified_inventory.default = "craft"
+	-- Default inventory page
+	default = "craft",
+
+	-- "Lite" mode
+	lite_mode = minetest.settings:get_bool("unified_inventory_lite"),
+
+	-- Trash enabled
+	trash_enabled = (minetest.settings:get_bool("unified_inventory_trash") ~= false),
+
+	pagecols = 8,
+	pagerows = 10,
+	page_y = 0,
+	formspec_y = 1,
+	main_button_x = 0,
+	main_button_y = 9,
+	craft_result_x = 0.3,
+	craft_result_y = 0.5,
+	form_header_y = 0,
+	standard_background = "background[-0.2,-0.2;1,1;ui_form_bg.png;true]",    -- the 'true' scales to fill, overrides the 1,1
+	standard_inv =        "list[current_player;main;0,YYY;8,4;]",             -- the YYY's are placeholders which get
+	standard_inv_bg =     "image[-0.1,YYY;10.05,4.70;ui_main_inventory.png]", -- replaced later by string.gsub()
+}
 
 -- Disable default creative inventory
-if creative_inventory then
-	function creative_inventory.set_creative_formspec(player, start_i, pagenum)
+local creative = rawget(_G, "creative") or rawget(_G, "creative_inventory")
+if creative then
+	function creative.set_creative_formspec(player, start_i, pagenum)
 		return
 	end
 end
 
+-- Disable sfinv inventory
+local sfinv = rawget(_G, "sfinv")
+if sfinv then
+	sfinv.enabled = false
+end
+
+dofile(modpath.."/group.lua")
 dofile(modpath.."/api.lua")
 dofile(modpath.."/internal.lua")
 dofile(modpath.."/callbacks.lua")
+dofile(modpath.."/match_craft.lua")
 dofile(modpath.."/register.lua")
-dofile(modpath.."/bags.lua")
+
+if minetest.settings:get_bool("unified_inventory_bags") ~= false then
+	dofile(modpath.."/bags.lua")
+end
+
+dofile(modpath.."/item_names.lua")
+
+if minetest.get_modpath("datastorage") then
+	dofile(modpath.."/waypoints.lua")
+end

internal.lua

@@ -1,139 +1,322 @@
+local S = minetest.get_translator("unified_inventory")
+local F = minetest.formspec_escape
+
+-- This pair of encoding functions is used where variable text must go in
+-- button names, where the text might contain formspec metacharacters.
+-- We can escape button names for the formspec, to avoid screwing up
+-- form structure overall, but they then don't get de-escaped, and so
+-- the input we get back from the button contains the formspec escaping.
+-- This is a game engine bug, and in the anticipation that it might be
+-- fixed some day we don't want to rely on it.  So for safety we apply
+-- an encoding that avoids all formspec metacharacters.
+function unified_inventory.mangle_for_formspec(str)
+	return string.gsub(str, "([^A-Za-z0-9])", function (c) return string.format("_%d_", string.byte(c)) end)
+end
+function unified_inventory.demangle_for_formspec(str)
+	return string.gsub(str, "_([0-9]+)_", function (v) return string.char(v) end)
+end
+
+function unified_inventory.get_per_player_formspec(player_name)
+	local lite = unified_inventory.lite_mode and not minetest.check_player_privs(player_name, {ui_full=true})
+
+	local ui = {}
+	ui.pagecols = unified_inventory.pagecols
+	ui.pagerows = unified_inventory.pagerows
+	ui.page_y = unified_inventory.page_y
+	ui.formspec_y = unified_inventory.formspec_y
+	ui.main_button_x = unified_inventory.main_button_x
+	ui.main_button_y = unified_inventory.main_button_y
+	ui.craft_result_x = unified_inventory.craft_result_x
+	ui.craft_result_y = unified_inventory.craft_result_y
+	ui.form_header_y = unified_inventory.form_header_y
+
+	if lite then
+		ui.pagecols = 4
+		ui.pagerows = 6
+		ui.page_y = 0.25
+		ui.formspec_y = 0.47
+		ui.main_button_x = 8.2
+		ui.main_button_y = 6.5
+		ui.craft_result_x = 2.8
+		ui.craft_result_y = 3.4
+		ui.form_header_y = -0.1
+	end
+
+	ui.items_per_page = ui.pagecols * ui.pagerows
+	return ui, lite
+end
 
 function unified_inventory.get_formspec(player, page)
+
 	if not player then
 		return ""
 	end
+
 	local player_name = player:get_player_name()
+	local ui_peruser,draw_lite_mode = unified_inventory.get_per_player_formspec(player_name)
+
 	unified_inventory.current_page[player_name] = page
 	local pagedef = unified_inventory.pages[page]
 
-	local formspec = "size[14,10]"
-	local fsdata = nil
-
-	-- Background
-	formspec = formspec .. "background[-0.19,-0.25;14.4,10.75;ui_form_bg.png]"
-	-- Current page
-	if unified_inventory.pages[page] then
-		fsdata = pagedef.get_formspec(player)
-		formspec = formspec .. fsdata.formspec
-	else
+	if not pagedef then
 		return "" -- Invalid page name
 	end
 
+	local formspec = {
+		"size[14,10]",
+		pagedef.formspec_prepend and "" or "no_prepend[]",
+		unified_inventory.standard_background -- Background
+	}
+	local n = 4
+
+	if draw_lite_mode then
+		formspec[1] = "size[11,7.7]"
+		formspec[3] = unified_inventory.standard_background
+	end
+
+	if unified_inventory.is_creative(player_name)
+	and page == "craft" then
+		formspec[n] = "background[0,"..(ui_peruser.formspec_y + 2)..";1,1;ui_single_slot.png]"
+		n = n+1
+	end
+
+	local perplayer_formspec = unified_inventory.get_per_player_formspec(player_name)
+	local fsdata = pagedef.get_formspec(player, perplayer_formspec)
+
+	formspec[n] = fsdata.formspec
+	n = n+1
+
+	local button_row = 0
+	local button_col = 0
+
 	-- Main buttons
+
+	local filtered_inv_buttons = {}
+
 	for i, def in pairs(unified_inventory.buttons) do
+		if not (draw_lite_mode and def.hide_lite) then
+			table.insert(filtered_inv_buttons, def)
+		end
+	end
+
+	for i, def in pairs(filtered_inv_buttons) do
+
+		if draw_lite_mode and i > 4 then
+			button_row = 1
+			button_col = 1
+		end
+
 		if def.type == "image" then
-			formspec = formspec.."image_button["
-					..(0.65 * (i - 1))..",9;0.8,0.8;"
-					..minetest.formspec_escape(def.image)..";"
-					..minetest.formspec_escape(def.name)..";]"
+			if (def.condition == nil or def.condition(player) == true) then
+				formspec[n] = "image_button["
+				formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
+				formspec[n+2] = ","..(ui_peruser.main_button_y + button_row * 0.7)..";0.8,0.8;"
+				formspec[n+3] = F(def.image)..";"
+				formspec[n+4] = F(def.name)..";]"
+				formspec[n+5] = "tooltip["..F(def.name)
+				formspec[n+6] = ";"..(def.tooltip or "").."]"
+				n = n+7
+			else
+				formspec[n] = "image["
+				formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
+				formspec[n+2] = ","..(ui_peruser.main_button_y + button_row * 0.7)..";0.8,0.8;"
+				formspec[n+3] = F(def.image).."^[colorize:#808080:alpha]"
+				n = n+4
+
+			end
 		end
 	end
 
 	if fsdata.draw_inventory ~= false then
 		-- Player inventory
-		formspec = formspec.."listcolors[#00000000;#00000000]"
-		formspec = formspec .. "list[current_player;main;0,4.5;8,4;]"
+		formspec[n] = "listcolors[#00000000;#00000000]"
+		formspec[n+1] = string.gsub(unified_inventory.standard_inv, "YYY", ui_peruser.formspec_y + 3.5)
+		n = n+2
 	end
 
 	if fsdata.draw_item_list == false then
-		return formspec
+		return table.concat(formspec, "")
 	end
 
 	-- Controls to flip items pages
 	local start_x = 9.2
-	formspec = formspec .. "image_button["..(start_x + 0.6 * 0)..",9;.8,.8;ui_skip_backward_icon.png;start_list;]"
-	formspec = formspec .. "image_button["..(start_x + 0.6 * 1)..",9;.8,.8;ui_doubleleft_icon.png;rewind3;]"
-	formspec = formspec .. "image_button["..(start_x + 0.6 * 2)..",9;.8,.8;ui_left_icon.png;rewind1;]"
-	formspec = formspec .. "image_button["..(start_x + 0.6 * 3)..",9;.8,.8;ui_right_icon.png;forward1;]"
-	formspec = formspec .. "image_button["..(start_x + 0.6 * 4)..",9;.8,.8;ui_doubleright_icon.png;forward3;]"
-	formspec = formspec .. "image_button["..(start_x + 0.6 * 5)..",9;.8,.8;ui_skip_forward_icon.png;end_list;]"
+
+	if not draw_lite_mode then
+		formspec[n] =
+			"image_button[" .. (start_x + 0.6 * 0)
+				.. ",9;.8,.8;ui_skip_backward_icon.png;start_list;]"
+			.. "tooltip[start_list;" .. F(S("First page")) .. "]"
+
+			.. "image_button[" .. (start_x + 0.6 * 1)
+				.. ",9;.8,.8;ui_doubleleft_icon.png;rewind3;]"
+			.. "tooltip[rewind3;" .. F(S("Back three pages")) .. "]"
+			.. "image_button[" .. (start_x + 0.6 * 2)
+				.. ",9;.8,.8;ui_left_icon.png;rewind1;]"
+			.. "tooltip[rewind1;" .. F(S("Back one page")) .. "]"
+
+			.. "image_button[" .. (start_x + 0.6 * 3)
+				.. ",9;.8,.8;ui_right_icon.png;forward1;]"
+			.. "tooltip[forward1;" .. F(S("Forward one page")) .. "]"
+			.. "image_button[" .. (start_x + 0.6 * 4)
+				.. ",9;.8,.8;ui_doubleright_icon.png;forward3;]"
+			.. "tooltip[forward3;" .. F(S("Forward three pages")) .. "]"
+
+			.. "image_button[" .. (start_x + 0.6 * 5)
+				.. ",9;.8,.8;ui_skip_forward_icon.png;end_list;]"
+			.. "tooltip[end_list;" .. F(S("Last page")) .. "]"
+	else
+		formspec[n] =
+			"image_button[" .. (8.2 + 0.65 * 0)
+				.. ",5.8;.8,.8;ui_skip_backward_icon.png;start_list;]"
+			.. "tooltip[start_list;" .. F(S("First page")) .. "]"
+			.. "image_button[" .. (8.2 + 0.65 * 1)
+				.. ",5.8;.8,.8;ui_left_icon.png;rewind1;]"
+			.. "tooltip[rewind1;" .. F(S("Back one page")) .. "]"
+			.. "image_button[" .. (8.2 + 0.65 * 2)
+				.. ",5.8;.8,.8;ui_right_icon.png;forward1;]"
+			.. "tooltip[forward1;" .. F(S("Forward one page")) .. "]"
+			.. "image_button[" .. (8.2 + 0.65 * 3)
+				.. ",5.8;.8,.8;ui_skip_forward_icon.png;end_list;]"
+			.. "tooltip[end_list;" .. F(S("Last page")) .. "]"
+	end
+	n = n+1
 
 	-- Search box
-	formspec = formspec .. "field[9.5,8.325;3,1;searchbox;;]"
-	formspec = formspec .. "image_button[12.2,8.1;.8,.8;ui_search_icon.png;searchbutton;]"
+	formspec[n] = "field_close_on_enter[searchbox;false]"
+	n = n+1
+
+	if not draw_lite_mode then
+		formspec[n] = "field[9.5,8.325;3,1;searchbox;;"
+			.. F(unified_inventory.current_searchbox[player_name]) .. "]"
+		formspec[n+1] = "image_button[12.2,8.1;.8,.8;ui_search_icon.png;searchbutton;]"
+			.. "tooltip[searchbutton;" ..F(S("Search")) .. "]"
+		formspec[n+2] = "image_button[12.9,8.1;.8,.8;ui_reset_icon.png;searchresetbutton;]"
+			.. "tooltip[searchbutton;" ..F(S("Search")) .. "]"
+			.. "tooltip[searchresetbutton;" ..F(S("Reset search and display everything")) .. "]"
+	else
+		formspec[n] = "field[8.5,5.225;2.2,1;searchbox;;"
+			.. F(unified_inventory.current_searchbox[player_name]) .. "]"
+		formspec[n+1] = "image_button[10.3,5;.8,.8;ui_search_icon.png;searchbutton;]"
+			.. "tooltip[searchbutton;" ..F(S("Search")) .. "]"
+		formspec[n+2] = "image_button[11,5;.8,.8;ui_reset_icon.png;searchresetbutton;]"
+			.. "tooltip[searchbutton;" ..F(S("Search")) .. "]"
+			.. "tooltip[searchresetbutton;" ..F(S("Reset search and display everything")) .. "]"
+	end
+	n = n+3
+
+	local no_matches = S("No matching items")
+	if draw_lite_mode then
+		no_matches = S("No matches.")
+	end
 
 	-- Items list
-	local list_index = unified_inventory.current_index[player_name]
-	local page = math.floor(list_index / (80) + 1)
-	local pagemax = math.floor(
-		(#unified_inventory.filtered_items_list[player_name] - 1)
-			/ (80) + 1)
-	local item = {}
-	for y = 0, 9 do
-	for x = 0, 7 do
-		local name = unified_inventory.filtered_items_list[player_name][list_index]
-		if minetest.registered_items[name] then
-			formspec = formspec.."item_image_button["
-					..(8.2 + x * 0.7)..","
-					..(1   + y * 0.7)..";.81,.81;"
-					..name..";item_button_"
-					..name..";]"
-			list_index = list_index + 1
+	if #unified_inventory.filtered_items_list[player_name] == 0 then
+		formspec[n] = "label[8.2,"..ui_peruser.form_header_y..";" .. F(no_matches) .. "]"
+	else
+		local dir = unified_inventory.active_search_direction[player_name]
+		local list_index = unified_inventory.current_index[player_name]
+		local page2 = math.floor(list_index / (ui_peruser.items_per_page) + 1)
+		local pagemax = math.floor(
+			(#unified_inventory.filtered_items_list[player_name] - 1)
+				/ (ui_peruser.items_per_page) + 1)
+		for y = 0, ui_peruser.pagerows - 1 do
+			for x = 0, ui_peruser.pagecols - 1 do
+				local name = unified_inventory.filtered_items_list[player_name][list_index]
+				local item = minetest.registered_items[name]
+				if item then
+					-- Clicked on current item: Flip crafting direction
+					if name == unified_inventory.current_item[player_name] then
+						local cdir = unified_inventory.current_craft_direction[player_name]
+						if cdir == "recipe" then
+							dir = "usage"
+						elseif cdir == "usage" then
+							dir = "recipe"
+						end
+					else
+					-- Default: use active search direction by default
+						dir = unified_inventory.active_search_direction[player_name]
+					end
+
+					local button_name = "item_button_" .. dir .. "_"
+						.. unified_inventory.mangle_for_formspec(name)
+					formspec[n] = ("item_image_button[%f,%f;.81,.81;%s;%s;]"):format(
+						8.2 + x * 0.7, ui_peruser.formspec_y + ui_peruser.page_y + y * 0.7,
+						name, button_name
+					)
+					formspec[n + 1] = ("tooltip[%s;%s \\[%s\\]]"):format(
+						button_name, minetest.formspec_escape(item.description),
+						item.mod_origin or "??"
+					)
+					n = n + 2
+					list_index = list_index + 1
+				end
+			end
 		end
+		formspec[n] = "label[8.2,"..ui_peruser.form_header_y..";"..F(S("Page")) .. ": "
+			.. S("@1 of @2",page2,pagemax).."]"
 	end
+	n= n+1
+
+	if unified_inventory.activefilter[player_name] ~= "" then
+		formspec[n] = "label[8.2,"..(ui_peruser.form_header_y + 0.4)..";" .. F(S("Filter")) .. ":]"
+		formspec[n+1] = "label[9.1,"..(ui_peruser.form_header_y + 0.4)..";"..F(unified_inventory.activefilter[player_name]).."]"
 	end
-	formspec = formspec.."label[8.2,0;Page:]"
-	formspec = formspec.."label[9,0;"..page.." of "..pagemax.."]"
-	formspec = formspec.."label[8.2,0.4;Filter:]"
-	formspec = formspec.."label[9,0.4;"..unified_inventory.activefilter[player_name].."]"
-	return formspec
+	return table.concat(formspec, "")
 end
 
 function unified_inventory.set_inventory_formspec(player, page)
 	if player then
-		local formspec = unified_inventory.get_formspec(player, page)
-		player:set_inventory_formspec(formspec)
+		player:set_inventory_formspec(unified_inventory.get_formspec(player, page))
 	end
 end
 
 --apply filter to the inventory list (create filtered copy of full one)
-function unified_inventory.apply_filter(player, filter)
-	local player_name = player:get_player_name()
-	local size = 0
-	local lfilter = string.lower(filter)
-	if not pcall(function() ("technic:test"):find(lfilter) end) then
-		-- Filter is invalid
-		lfilter = ""
+function unified_inventory.apply_filter(player, filter, search_dir)
+	if not player then
+		return false
 	end
-	unified_inventory.filtered_items_list[player_name]={}
+	local player_name = player:get_player_name()
+	local lfilter = string.lower(filter)
+	local ffilter
 	if lfilter:sub(1, 6) == "group:" then
 		local groups = lfilter:sub(7):split(",")
-		for name, def in pairs(minetest.registered_items) do
-			if def.groups then
-				local all = true
-				for _, group in ipairs(groups) do
-					if not (def.groups[group] and (def.groups[group] > 0)) then
-						all = false
-						break
-					end
-				end
-				if all then
-					table.insert(unified_inventory.filtered_items_list[player_name], name)
-					size = size + 1
+		ffilter = function(name, def)
+			for _, group in ipairs(groups) do
+				if not def.groups[group]
+				or def.groups[group] <= 0 then
+					return false
 				end
 			end
+			return true
 		end
 	else
-		for name, def in pairs(minetest.registered_items) do
-			if (not def.groups.not_in_creative_inventory or
-			   def.groups.not_in_creative_inventory == 0)
-			   and def.description and def.description ~= "" then
-				local lname = string.lower(name)
-				local ldesc = string.lower(def.description)
-				if string.find(lname, lfilter) or string.find(ldesc, lfilter) then
-					table.insert(unified_inventory.filtered_items_list[player_name], name)
-					size = size + 1
-				end
-			end
+		local lang = minetest.get_player_information(player_name).lang_code
+		ffilter = function(name, def)
+			local lname = string.lower(name)
+			local ldesc = string.lower(def.description)
+			local llocaldesc = minetest.get_translated_string
+				and string.lower(minetest.get_translated_string(lang, def.description))
+			return string.find(lname, lfilter, 1, true) or string.find(ldesc, lfilter, 1, true)
+				or llocaldesc and string.find(llocaldesc, lfilter, 1, true)
+		end
+	end
+	unified_inventory.filtered_items_list[player_name]={}
+	for name, def in pairs(minetest.registered_items) do
+		if (not def.groups.not_in_creative_inventory
+			or def.groups.not_in_creative_inventory == 0)
+		and def.description
+		and def.description ~= ""
+		and ffilter(name, def) then
+			table.insert(unified_inventory.filtered_items_list[player_name], name)
 		end
 	end
 	table.sort(unified_inventory.filtered_items_list[player_name])
-	unified_inventory.filtered_items_list_size[player_name] = size
+	unified_inventory.filtered_items_list_size[player_name] = #unified_inventory.filtered_items_list[player_name]
 	unified_inventory.current_index[player_name] = 1
 	unified_inventory.activefilter[player_name] = filter
+	unified_inventory.active_search_direction[player_name] = search_dir
 	unified_inventory.set_inventory_formspec(player,
-			unified_inventory.current_page[player_name])
+	unified_inventory.current_page[player_name])
 end
 
 function unified_inventory.items_in_group(groups)
@@ -147,3 +330,48 @@ function unified_inventory.items_in_group(groups)
 	end
 	return items
 end
+
+function unified_inventory.sort_inventory(inv)
+	local inlist = inv:get_list("main")
+	local typecnt = {}
+	local typekeys = {}
+	for _, st in ipairs(inlist) do
+		if not st:is_empty() then
+			local n = st:get_name()
+			local w = st:get_wear()
+			local m = st:get_metadata()
+			local k = string.format("%s %05d %s", n, w, m)
+			if not typecnt[k] then
+				typecnt[k] = {
+					name = n,
+					wear = w,
+					metadata = m,
+					stack_max = st:get_stack_max(),
+					count = 0,
+				}
+				table.insert(typekeys, k)
+			end
+			typecnt[k].count = typecnt[k].count + st:get_count()
+		end
+	end
+	table.sort(typekeys)
+	local outlist = {}
+	for _, k in ipairs(typekeys) do
+		local tc = typecnt[k]
+		while tc.count > 0 do
+			local c = math.min(tc.count, tc.stack_max)
+			table.insert(outlist, ItemStack({
+				name = tc.name,
+				wear = tc.wear,
+				metadata = tc.metadata,
+				count = c,
+			}))
+			tc.count = tc.count - c
+		end
+	end
+	if #outlist > #inlist then return end
+	while #outlist < #inlist do
+		table.insert(outlist, ItemStack(nil))
+	end
+	inv:set_list("main", outlist)
+end

item_names.lua

@@ -0,0 +1,76 @@
+-- Based on 4itemnames mod by 4aiman
+
+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 function set_hud(player)
+	local player_name = player:get_player_name()
+	local off = {x=0, y=-65}
+	if hudbars_mod then
+		-- Assume no alignment (2 per line)
+		off.y = off.y - math.ceil(hb.hudbars_count / 2) * 25
+	else
+		off.y = off.y - 25
+	end
+
+	item_names[player_name] = {
+		hud = player:hud_add({
+			hud_elem_type = "text",
+			position = {x=0.5, y=1},
+			offset = off,
+			alignment = {x=0, y=-1},
+			number = 0xFFFFFF,
+			text = "",
+		}),
+		dtime = dlimit,
+		index = 1,
+		itemname = ""
+	}
+end
+
+minetest.register_on_joinplayer(function(player)
+	minetest.after(0, set_hud, player)
+end)
+
+minetest.register_on_leaveplayer(function(player)
+	item_names[player:get_player_name()] = nil
+end)
+
+minetest.register_globalstep(function(dtime)
+	for _, player in pairs(minetest.get_connected_players()) do
+		local data = item_names[player:get_player_name()]
+		if not data or not data.hud then
+			data = {} -- Update on next step
+			set_hud(player)
+		end
+
+		local index = player:get_wield_index()
+		local stack = player:get_wielded_item()
+		local itemname = stack:get_name()
+
+		if data.hud and data.dtime < dlimit then
+			data.dtime = data.dtime + dtime
+			if data.dtime > dlimit then
+				player:hud_change(data.hud, 'text', "")
+			end
+		end
+
+		if data.hud and (itemname ~= data.itemname or index ~= data.index) then
+			data.itemname = itemname
+			data.index = index
+			data.dtime = 0
+
+			local desc = stack.get_meta
+				and stack:get_meta():get_string("description")
+
+			if not desc or desc == "" then
+				-- Try to use default description when none is set in the meta
+				local def = minetest.registered_items[itemname]
+				desc = def and def.description or ""
+			end
+			player:hud_change(data.hud, 'text', desc)
+		end
+	end
+end)
+

locale/template.pot

@@ -0,0 +1,358 @@
+# LANGUAGE translation for the unified_inventory mod.
+# Copyright (C) 2018 Maciej Kasatkin (RealBadAngel)
+# This file is distributed under the same license as the unified_inventory package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: unified_inventory\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2018-04-02 03:34+0200\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: api.lua register.lua
+msgid "Crafting"
+msgstr ""
+
+#: api.lua
+msgid "Mixing"
+msgstr ""
+
+#: api.lua
+msgid "Cooking"
+msgstr ""
+
+#: api.lua
+msgid "Digging"
+msgstr ""
+
+#: bags.lua
+msgid "Bags"
+msgstr ""
+
+#: bags.lua
+msgid "Bag @1"
+msgstr ""
+
+#: bags.lua
+msgid "Small Bag"
+msgstr ""
+
+#: bags.lua
+msgid "Medium Bag"
+msgstr ""
+
+#: bags.lua
+msgid "Large Bag"
+msgstr ""
+
+#: group.lua
+msgid " and "
+msgstr ""
+
+#: internal.lua
+msgid "First page"
+msgstr ""
+
+#: internal.lua
+msgid "Back three pages"
+msgstr ""
+
+#: internal.lua
+msgid "Back one page"
+msgstr ""
+
+#: internal.lua
+msgid "Forward one page"
+msgstr ""
+
+#: internal.lua
+msgid "Forward three pages"
+msgstr ""
+
+#: internal.lua
+msgid "Last page"
+msgstr ""
+
+#: internal.lua
+msgid "Search"
+msgstr ""
+
+#: internal.lua
+msgid "Reset search and display everything"
+msgstr ""
+
+#: internal.lua
+msgid "No matching items"
+msgstr ""
+
+#: internal.lua
+msgid "No matches."
+msgstr ""
+
+#: internal.lua
+msgid "Page"
+msgstr ""
+
+#: internal.lua
+#, lua-format
+msgid "%s of %s"
+msgstr ""
+
+#: internal.lua
+msgid "Filter"
+msgstr ""
+
+#: register.lua
+msgid "Can use the creative inventory"
+msgstr ""
+
+#: register.lua
+msgid ""
+"Forces Unified Inventory to be displayed in Full mode if Lite mode is "
+"configured globally"
+msgstr ""
+
+#: register.lua
+msgid "Crafting Grid"
+msgstr ""
+
+#: register.lua
+msgid "Crafting Guide"
+msgstr ""
+
+#: register.lua
+msgid "Set home position"
+msgstr ""
+
+#: register.lua
+#, lua-format
+msgid "Home position set to: %s"
+msgstr ""
+
+#: register.lua
+msgid "You don't have the \"home\" privilege!"
+msgstr ""
+
+#: register.lua
+msgid "Go home"
+msgstr ""
+
+#: register.lua
+msgid "Set time to day"
+msgstr ""
+
+#: register.lua
+msgid "Time of day set to 6am"
+msgstr ""
+
+#: register.lua
+msgid "You don't have the settime privilege!"
+msgstr ""
+
+#: register.lua
+msgid "Set time to night"
+msgstr ""
+
+#: register.lua
+msgid "Time of day set to 9pm"
+msgstr ""
+
+#: register.lua
+msgid "Clear inventory"
+msgstr ""
+
+#: register.lua
+msgid ""
+"This button has been disabled outside of creative mode to prevent accidental "
+"inventory trashing.\n"
+"Use the trash slot instead."
+msgstr ""
+
+#: register.lua
+msgid "Inventory cleared!"
+msgstr ""
+
+#: register.lua
+msgid "Trash:"
+msgstr ""
+
+#: register.lua
+msgid "Refill:"
+msgstr ""
+
+#: register.lua
+#, lua-format
+msgid "Any item belonging to the %s group"
+msgstr ""
+
+#: register.lua
+#, lua-format
+msgid "Any item belonging to the groups %s"
+msgstr ""
+
+#: register.lua
+#, lua-format
+msgid "Recipe %d of %d"
+msgstr ""
+
+#: register.lua
+#, lua-format
+msgid "Usage %d of %d"
+msgstr ""
+
+#: register.lua
+msgid "No recipes"
+msgstr ""
+
+#: register.lua
+msgid "No usages"
+msgstr ""
+
+#: register.lua
+msgid "Result"
+msgstr ""
+
+#: register.lua
+msgid "Ingredient"
+msgstr ""
+
+#: register.lua
+msgid "Show next recipe"
+msgstr ""
+
+#: register.lua
+msgid "Show next usage"
+msgstr ""
+
+#: register.lua
+msgid "Show previous recipe"
+msgstr ""
+
+#: register.lua
+msgid "Show previous usage"
+msgstr ""
+
+#: register.lua
+#, lua-format
+msgid "%s (%s)"
+msgstr ""
+
+#: register.lua
+msgid "Give me:"
+msgstr ""
+
+#: register.lua
+msgid ""
+"This recipe is too\n"
+"large to be displayed."
+msgstr ""
+
+#: register.lua
+msgid "To craft grid:"
+msgstr ""
+
+#: register.lua
+msgid "All"
+msgstr ""
+
+#: waypoints.lua
+msgid "White"
+msgstr ""
+
+#: waypoints.lua
+msgid "Yellow"
+msgstr ""
+
+#: waypoints.lua
+msgid "Red"
+msgstr ""
+
+#: waypoints.lua
+msgid "Green"
+msgstr ""
+
+#: waypoints.lua
+msgid "Blue"
+msgstr ""
+
+#: waypoints.lua
+msgid "Waypoints"
+msgstr ""
+
+#: waypoints.lua
+#, lua-format
+msgid "Select Waypoint #%d"
+msgstr ""
+
+#: waypoints.lua
+#, lua-format
+msgid "Waypoint %d"
+msgstr ""
+
+#: waypoints.lua
+msgid "Set waypoint to current location"
+msgstr ""
+
+#: waypoints.lua
+msgid "invisible"
+msgstr ""
+
+#: waypoints.lua
+msgid "visible"
+msgstr ""
+
+#: waypoints.lua
+msgid "Make waypoint @1"
+msgstr ""
+
+#: waypoints.lua
+msgid "Disable"
+msgstr ""
+
+#: waypoints.lua
+msgid "Enable"
+msgstr ""
+
+#: waypoints.lua
+msgid "@1 display of waypoint coordinates"
+msgstr ""
+
+#: waypoints.lua
+msgid "Change color of waypoint display"
+msgstr ""
+
+#: waypoints.lua
+msgid "Edit waypoint name"
+msgstr ""
+
+#: waypoints.lua
+msgid "Waypoint active"
+msgstr ""
+
+#: waypoints.lua
+msgid "Waypoint inactive"
+msgstr ""
+
+#: waypoints.lua
+msgid "Finish editing"
+msgstr ""
+
+#: waypoints.lua
+msgid "World position"
+msgstr ""
+
+#: waypoints.lua
+msgid "Name"
+msgstr ""
+
+#: waypoints.lua
+msgid "HUD text color"
+msgstr ""

locale/unified_inventory.de.tr

@@ -0,0 +1,79 @@
+# textdomain: unified_inventory
+Crafting=Fertigung
+Mixing=Mischen
+Cooking=Kochen
+Digging=Graben
+Bags=Taschen
+Bag @1=Tasche @1
+Small Bag=Kleine Tasche
+Medium Bag=Mittelgroße Tasche
+Large Bag=Große Tasche
+ and = und 
+First page=Erste Seite
+Back three pages=3 Seiten zurückblättern
+Back one page=1 Seite zurückblättern
+Forward one page=1 Seite vorblättern
+Forward three pages=3 Seiten vorblättern
+Last page=Letzte Seite
+Search=Suchen
+Reset search and display everything=Suche zurücksetzen und alles anzeigen
+No matching items=Keine passenden Gegenstände
+No matches.=Keine Treffer
+Page=Seite
+@1 of @2=@1 von @2
+Filter=Filter
+Can use the creative inventory=Kann das Kreativinventar nutzen
+Crafting Grid=Fertigungsraster
+Crafting Guide=Fertigungsführer
+Set home position=Heimatposition setzen
+Home position set to: @1=Heimatposition nach @1 gesetzt
+You don't have the "home" privilege!=Du hast das „home“-Privileg nicht!
+Go home=Nach Hause gehen
+Set time to day=Zur Tageszeit wechseln
+Time of day set to 6am=Tageszeit auf 6 Uhr gesetzt
+You don't have the settime privilege!=Du hast das „settime“-Privileg nicht!
+Set time to night=Zur Nachtzeit wechseln
+Time of day set to 9pm=Tageszeit auf 21 Uhr gesetzt
+Clear inventory=Inventar leeren
+Inventory cleared!=Inventar geleert!
+Trash:=Müll:
+Refill:=Nachfüllen:
+Any item belonging to the @1 group=Irgendein Gegenstand, der zur Gruppe @1 gehört
+Any item belonging to the groups @1=Irgendein Gegenstand, der zu den Gruppen @1 gehört
+Recipe @1 of @2=Rezept @1 von @2
+Usage @1 of @2=Verwendung @1 von @2
+No recipes=Keine Rezepte
+No usages=Keine Verwendungen
+Result=Ergebnis
+Ingredient=Zutat
+Show next recipe=Nächstes Rezept zeigen
+Show next usage=Nächste Verwendung zeigen
+Show previous recipe=Vorheriges Rezept zeigen
+Show previous usage=Vorherige Verwendung zeigen
+Give me:=Gib mir:
+To craft grid:=Ins Fertigungsraster:
+All=Alles
+White=Weiß
+Yellow=Gelb
+Red=Rot
+Green=Grün
+Blue=Blau
+Waypoints=Wegpunkte
+Select Waypoint #@1=Wegpunkt Nr. @1 auswählen
+Waypoint @1=Wegpunkt Nr. @1
+Set waypoint to current location=Setze Wegpunkt zur derzeitigen Position
+invisible=unsichtbar
+visible=sichtbar
+Make waypoint @1=Wegpunkt @1 machen
+Disable=ausschalten
+Enable=einschalten
+@1 display of waypoint coordinates=Anzeige der Wegpunktkoordinaten @1
+Change color of waypoint display=Farbe der Darstellung der Wegpunkte ändern
+Edit waypoint name=Name des Wegpunkts ändern
+Waypoint active=Wegpunkt aktiv
+Waypoint inactive=Wegpunkt inaktiv
+Finish editing=Bearbeitung abschließen
+World position=Weltposition
+Name=Name
+HUD text color=HUD-Textfarbe
+Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=Zwingt Unified Inventory, im Vollmodus angezeigt zu werden, wenn der Minimalmodus global eingestellt ist

locale/unified_inventory.es.tr

@@ -0,0 +1,100 @@
+# textdomain: unified_inventory
+
+# waypoints.lua
+
+White=Blanco
+Yellow=Amarillo
+Red=Rojo
+Green=Verde
+Blue=Azul
+Waypoints=Puntos
+Select Waypoint #@1=Seleccionar Punto #@1
+Waypoint @1=Punto @1
+Set waypoint to current location=Establecer el punto a la ubicación actual
+Make waypoint @1=Hacer punto @1
+invisible=invisible
+visible=visible
+@1 display of waypoint coordinates=Visualizar coordenadas del punto @1
+Disable=Deshabilitado
+Enable=Habilitado
+Change color of waypoint display=Cambiar el color del punto
+Edit waypoint name=Editar nombre del punto
+Waypoint active=Punto activo
+Waypoint inactive=Punto inactivo
+Finish editing=Terminar edición
+World position=Posición en el mundo
+Name=Nombre
+HUD text color=Color del texto de la Interfaz
+
+# group.lua
+
+ and = y
+
+# register.lua
+
+Can use the creative inventory=Puede usar el inventario creativo
+Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=Obliga al Inventario Unificado a mostrarse en modo Completo si el modo Simple está configurado globalmente
+Crafting Grid=Cuadricula de Elaboración
+Crafting Guide=Guía de Elaboración
+Set home position=Establecer posición de la casa
+Home position set to: @1=Posición de la casa cambiada a: @1
+You don't have the \"home\" privilege!=¡No tienes el privilegio \"home\"!
+Go home=Ir a casa
+Set time to day=Cambiar a dia
+Set time to night=Cambiar a noche
+Time of day set to 6am=Hora del día cambiada a 6 AM
+Time of day set to 9pm=Hora del día cambiada a 9 PM
+You don't have the settime privilege!=¡No tienes el privilegio "settime"!
+Clear inventory=Limpiar inventario
+Inventory cleared!=¡Inventario limpio!
+This button has been disabled outside=Este botón ha sido deshabilitado
+Crafting=Elaboración
+Trash:=Basura:
+Refill:=Rellenar:
+Any item belonging to the @1 group=Cualquier elemento que pertenezca al grupo @1
+Any item belonging to the groups @1=Cualquier elemento perteneciente a los grupos @1
+Recipe @1 of @2=Receta @1 de @2
+Usage @1 of @2=Uso @1 de @2
+No recipes=No tiene receta
+No usages=No tiene uso
+Result=Resultado
+Ingredient=Ingrediente
+Show next recipe=Mostrar la siguiente receta
+Show next usage=Mostrar el siguiente uso
+Show previous recipe=Mostrar la receta anterior
+Show previous usage=Mostrar el uso anterior
+@1 (@2)=@1 (@2)
+Give me:=Dame:
+This recipe is too@nlarge to be displayed.=Esta receta es demasiado@ngrande para ser mostrada.
+To craft grid:=Construir:
+All=Todos
+
+# api.lua
+
+Mixing=Mezclar
+Cooking=Hornear
+Digging=Recoger
+
+# internal.lua
+
+First page=Primera página
+Back three pages=Volver tres páginas
+Back one page=Volver una página
+Forward one page=Avanzar una página
+Forward three pages=Avanzar tres páginas
+Last page=Ultima Pagina
+Search=Buscar
+Reset search and display everything=Limpiar la busqueda y mostrar todo
+No matching items=No se encontraron elementos
+No matches.=No hay resultados.
+Page=Página
+@1 of @2=@1 de @2
+Filter=Filtro
+
+# bags.lua
+
+Bags=Bolsos
+Bag @1=Bolso @1
+Small Bag=Bolso Pequeño
+Medium Bag=Bolso Mediano
+Large Bag=Bolso Grande

locale/unified_inventory.fr.tr

@@ -0,0 +1,57 @@
+# textdomain: unified_inventory
+Crafting=Création
+Cooking=Cuisson
+Digging=Creuser
+Bags=Sacs
+Bag @1=Sac @1
+Small Bag=Petit sac
+Medium Bag=Sac moyen
+Large Bag=Grand sac
+ and = et 
+First page=1ère page
+Back three pages=3 pages en arrière
+Back one page=Page précédente
+Forward one page=Page suivante
+Forward three pages=3 pages en avant
+Last page=Dernière page
+Search=Rechercher
+No matching items=Aucun élément correspondant
+No matches.=Aucun match
+Page=Page
+@1 of @2=@1 de @2
+Filter=Filtre
+Can use the creative inventory=Vous pouvez utiliser l'inventaire créatif
+Crafting Grid=Grille de création
+Crafting Guide=Guide de création
+Set home position=Position dans le monde
+Home position set to: @1=Position de votre base fixée à: @1
+You don't have the "home" privilege!=Vous n'avez pas le privilège "home"!
+Time of day set to 6am=Heure fixée à 6h
+You don't have the settime privilege!=Vous n'avez pas le privilège "settime"!
+Time of day set to 9pm=Heure fixée à 21h
+Inventory cleared!=Inventaire vidé !
+Trash:=Poubelle :
+Refill:=Remplir :
+Recipe @1 of @2=Recette @1 de @2
+Result=Résultat
+To craft grid:=Sur de création:
+All=Tout
+White=Blanc
+Yellow=Jaune
+Red=Rouge
+Green=Vert
+Blue=Bleu
+Waypoints=Point de passage
+Select Waypoint #@1=Choisir un point de passage #@1
+Waypoint @1=Point de passage @1
+Set waypoint to current location=Marquer un point de passage à la position actuelle
+Make waypoint @1=Rendre @1 le point de passage
+@1 display of waypoint coordinates=@1 montrer les coordonnées des points de passages
+Change color of waypoint display=Changer la couleur du point de passage
+Edit waypoint name=Editer le nom du point de passage
+Waypoint active=Point de passage actif
+Waypoint inactive=Point de passage inactif
+Finish editing=Terminer l'édition
+World position=Position dans le monde
+Name=Nom
+HUD text color=Couleur de texte du HUD

locale/unified_inventory.it.tr

@@ -0,0 +1,79 @@
+# textdomain: unified_inventory
+Crafting=Assemblaggio
+Mixing=Unione
+Cooking=Cottura
+Digging=Scavo
+Bags=Borse
+Bag @1=Borsa @1
+Small Bag=Borsa piccola
+Medium Bag=Borsa media
+Large Bag=Borsa grande
+ and = e 
+First page=Prima pagina
+Back three pages=Indietro di tre pagine
+Back one page=Indietro di una pagina
+Forward one page=Avanti di una pagina
+Forward three pages=Avanti di tre pagine
+Last page=Ultima pagina
+Search=Cerca
+Reset search and display everything=Azzera la ricerca e mostra tutto
+No matching items=Nessun oggetto corrispondente
+No matches.=Nessuna corrispondenza.
+Page=Pagina
+@1 of @2=@1 di @2
+Filter=Filtro
+Can use the creative inventory=Può usare l'inventario creativo
+Crafting Grid=Griglia di assemblaggio
+Crafting Guide=Guida di assemblaggio
+Set home position=Imposta la residenza
+Home position set to: @1=Residenza impostata su: @1
+You don't have the "home" privilege!=Non hai il privilegio "home"!
+Go home=Torna a casa
+Set time to day=Imposta l'orario sul giorno
+Time of day set to 6am=Orario impostato sulle 6am
+You don't have the settime privilege!=Non hai il privilegio "time"!
+Set time to night=Imposta l'orario sulla notte
+Time of day set to 9pm=Orario impostato sulle 9am
+Clear inventory=Ripulisci l'inventario
+Inventory cleared!=Inventario ripulito!
+Trash:=Butta:
+Refill:=Riempi:
+Any item belonging to the @1 group=Qualunque oggetto appartenente al gruppo @1
+Any item belonging to the groups @1=Qualunque oggetto appartenente ai gruppi @1
+Recipe @1 of @2=Ricetta @1 di @2
+Usage @1 of @2=Uso @1 di @2
+No recipes=Nessuna ricetta
+No usages=Nessun utilizzo
+Result=Risultato
+Ingredient=Ingrediente
+Show next recipe=Mostra la prossima ricetta
+Show next usage=Mostra il prossimo utilizzo
+Show previous recipe=Mostra la ricetta precedente
+Show previous usage=Mostra l'utilizzo precedente
+Give me:=Dammi:
+To craft grid:=Alla griglia di assemblaggio:
+All=Tutto
+White=Bianco
+Yellow=Giallo
+Red=Rosso
+Green=Verde
+Blue=Blu
+Waypoints=Tappe
+Select Waypoint #@1=Seleziona tappa n°@1
+Waypoint @1=Tappa @1
+Set waypoint to current location=Imposta tappa alla posizione attuale
+invisible=invisibile
+visible=visibile
+Make waypoint @1=Crea tappa @1
+Disable=Disabilita
+Enable=Abilita
+@1 display of waypoint coordinates=@1 la visualizzazione delle coordinate della tappa
+Change color of waypoint display=Modifica il colore della visualizzazione della tappa
+Edit waypoint name=Modifica il nome della tappa
+Waypoint active=Tappa attiva
+Waypoint inactive=Tappa inattiva
+Finish editing=Termina la modifica
+World position=Posizione del mondo
+Name=Nome
+HUD text color=Colore del testo del visore
+Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=Forza la visualizzazione di Unified Inventory in modalità completa se è configurata globalmente la visualizzazione semplice

locale/unified_inventory.ms.tr

@@ -0,0 +1,78 @@
+# textdomain: unified_inventory
+Crafting=Pertukangan
+Mixing=Pencampuran
+Cooking=Pemasakan
+Digging=Penggalian
+Bags=Beg
+Bag @1=Beg @1
+Small Bag=Beg Kecil
+Medium Bag=Beg Sederhana
+Large Bag=Beg Besar
+ and = dan 
+First page=Halaman pertama
+Back three pages=Tiga halaman sebelumnya
+Back one page=Halaman sebelumnya
+Forward one page=Halaman seterusnya
+Forward three pages=Tiga halaman seterusnya
+Last page=Halaman terakhir
+Search=Cari
+Reset search and display everything=Set semula carian dan tunjukkan semua benda
+No matching items=Tiada item sepadan
+No matches.=Tiada padanan.
+Page=Halaman
+@1 of @2=@1 drpd @2
+Filter=Tapis
+Can use the creative inventory=Boleh guna inventori kreatif
+Crafting Grid=Grid Pertukangan
+Crafting Guide=Panduan Pertukangan
+Set home position=Tetapkan kedudukan rumah
+Home position set to: @1=Kedudukan rumah ditetapkan ke: @1
+You don't have the "home" privilege!=Anda tidak ada keistimewaan "home"!
+Go home=Balik rumah
+Set time to day=Tetapkan masa jadi siang
+Time of day set to 6am=Masa ditetapkan ke 6 pagi
+You don't have the settime privilege!=Anda tidak ada keistimewaan settime!
+Set time to night=Tetapkan masa jadi malam
+Time of day set to 9pm=Masa ditetapkan ke 9 malam
+Clear inventory=Kosongkan inventori
+Inventory cleared!=Inventori dikosongkan!
+Trash:=Buang:
+Refill:=Isi balik:
+Any item belonging to the @1 group=Sebarang item dari kumpulan @1
+Any item belonging to the groups @1=Sebarang item dari kumpulan @1
+Recipe @1 of @2=Resipi @1 drpd @2
+Usage @1 of @2=Kegunaan @1 drpd @2
+No recipes=Tiada resipi
+No usages=Tiada kegunaan
+Result=Hasil
+Ingredient=Bahan
+Show next recipe=Tunjuk resipi seterusnya
+Show next usage=Tunjuk kegunaan seterusnya
+Show previous recipe=Tunjuk resipi sebelumnya
+Show previous usage=Tunjuk kegunaan sebelumnya
+@1 (@2)=@1 (@2)
+Give me:=Beri saya:
+To craft grid:=Ke grid pertukangan:
+White=Putih
+Yellow=Kuning
+Red=Merah
+Green=Hijau
+Blue=Biru
+Waypoints=Titik Arah
+Select Waypoint #@1=Pilih Titik Arah #@1
+Waypoint @1=Titik Arah @1
+Set waypoint to current location=Tetapkan titik arah ke lokasi semasa
+invisible=Sembunyikan
+visible=Paparkan
+Make waypoint @1=@1 titik arah
+Disable=Sembunyikan
+Enable=Paparkan
+@1 display of waypoint coordinates=@1 koordinat untuk titik arah
+Change color of waypoint display=Tukar warna paparan titik arah
+Edit waypoint name=Edit nama titik arah
+Waypoint active=Titik arah aktif
+Waypoint inactive=Titik arah tidak aktif
+Finish editing=Selesai edit
+World position=Kedudukan dunia
+Name=Nama
+HUD text color=Warna tulisan HUD

locale/unified_inventory.pl.tr

@@ -0,0 +1,61 @@
+# textdomain: unified_inventory
+Bags=Plecaki
+Bag @1=Plecak @1
+Small Bag=Maly plecak
+Medium Bag=Sredni plecak
+Large Bag=Duzy plecak
+ and = i 
+First page=Pierwsza strona
+Back three pages=3 strony w tyl
+Back one page=1 strona w tyl
+Forward one page=1 strona do przodu
+Forward three pages=3 strony do przodu
+Last page=Ostatnia strona
+Search=Szukaj
+No matching items=Brak pasujacych przedmiotow
+No matches.=Brak wyników
+Page=Strona
+@1 of @2=@1 z @2
+Filter=Filtr
+Set home position=Ustaw pozycję wyjściową
+Home position set to: @1=Pozycja domowa ustawiona na: @1
+You don't have the "home" privilege!=Nie masz uprawnien do zmiany czasu "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"!
+Set time to night=Ustaw czas na noc
+Time of day set to 9pm=Czas ustawiony na 21:00
+Clear inventory=Wyczyść zapasy
+Inventory cleared!=Zapasy zostały wyczyszczone!
+Trash:=Smietnik:
+Refill:=Uzupelnianie:
+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
+Give me:=Daj mi:
+All=Wszystko
+White=Bialy
+Yellow=Zolty
+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
+invisible=niewidzialny
+visible=widomy
+Make waypoint @1=Robić punkt @1
+@1 display of waypoint coordinates=@1 koordynatow punktu
+Change color of waypoint display=Zmien kolor punktu
+Edit waypoint name=Edytuj nazwe punktu
+Waypoint active=Punkt wlaczony
+Waypoint inactive=Punkt wylaczony
+Finish editing=Zakoncz edycje
+World position=Pozycja
+Name=Nazwa
+HUD text color=Kolor tekstu HUD

locale/unified_inventory.pt.tr

@@ -0,0 +1,76 @@
+# textdomain: unified_inventory
+Crafting=Artesanato
+Mixing=Muistura
+Cooking=Cozimento
+Digging=Escavação
+Bags=Bolsas
+Bag @1=Bolsa @1
+Small Bag=Bolsa Pequena
+Medium Bag=Bolsa Média
+Large Bag=Bolsa Grande
+ and = e 
+First page=Primeira Página
+Back three pages=Voltar 3 Páginas
+Back one page=Voltar 1 Página
+Forward one page=Avançar 1 Página
+Forward three pages=Avançar 3 Páginas
+Last page=Ultima Página
+Search=Pesquisar
+Reset search and display everything=Redefinir pesquisa e exibir tudo
+No matching items=Nenhum item correspondente
+No matches.=Sem correspondências
+Page=Página
+@1 of @2=@1 de @2
+Filter=Filtro
+Can use the creative inventory=Pode usar o inventário do criativo
+Crafting Grid=Grade de Artesanato
+Crafting Guide=Guia de Artesanato
+Set home position=Definir posição de casa
+Home position set to: @1=Posição inicial definida para: @1
+You don't have the "home" privilege!=Você não tem o privilégio de "home"!
+Go home=Transportar para Casa
+Set time to day=Definir turno para dia
+Time of day set to 6am=Hora do dia definida para 06h
+You don't have the settime privilege!=Você não tem o privilégio de "settime"!
+Set time to night=Definir turno para noite
+Time of day set to 9pm=Hora do dia ajustada para 21h
+Clear inventory=Limpar Inventário
+Inventory cleared!=Inventário Apagado!
+Trash:=Lixo:
+Refill:=Recarga:
+Any item belonging to the @1 group=Qualquer item pertencente ao grupo '@1'.
+Any item belonging to the groups @1=Qualquer item pertencente aos grupos '@1'.
+Recipe @1 of @2=Receita @1 de @2
+Usage @1 of @2=Utilização @1 de @2
+No recipes=Sem Receita
+No usages=Sem Utilização
+Result=Resultado
+Ingredient=Ingrediente
+Show next recipe=Exibir Próxima Receita
+Show next usage=Mostrar Próxima Utilização
+Show previous recipe=Exibir Receita Anterior
+Show previous usage=Exibir Utilização Anterior
+Give me:=Gerado:
+To craft grid:=Para Grade de Artesanato
+All=MAX
+White=Branco
+Yellow=Amarelo
+Red=Vermelho
+Green=Verde
+Blue=Azul
+Waypoints=Apontador de Direção
+Select Waypoint #@1=Seleção de Apontador de Direção #@1
+Waypoint @1=Apontador de Direção @1
+Set waypoint to current location=Configurar localização atual do Apontador de Direção
+invisible=invisível
+visible=visível
+Make waypoint @1=Fazer Apontador de Direção @1
+@1 display of waypoint coordinates=@1 exibição de coordenadas de Fazer Apontador de Direção
+Change color of waypoint display=Mudar cor exibida do Apontador de Direção
+Edit waypoint name=Editar Nome de Apontador de Direção
+Waypoint active=Apontador de Direção Ativo
+Waypoint inactive=Apontador de Direção Inativo
+Finish editing=Edição Finalizada
+World position=Posição Mundial
+Name=Nome
+HUD text color=Cor de HUD

locale/unified_inventory.ru.tr

@@ -0,0 +1,78 @@
+# textdomain: unified_inventory
+Crafting=Крафт
+Mixing=Мешать
+Cooking=Варить
+Digging=Копать
+Bags=Сумки
+Bag @1=Сумка @1
+Small Bag=Малая сумка
+Medium Bag=Средняя сумка
+Large Bag=Большая сумка
+ and = и 
+First page=Первая страница
+Back three pages=3 страницы назад
+Back one page=1 страницу назад
+Forward one page=1 страницу вперёд
+Forward three pages=3 страницы вперёд
+Last page=Последняя страница
+Search=Поиск
+Reset search and display everything=Сброс поиска, показать всё
+No matching items=Нет подходящих элементов
+No matches.=Ничего не найдено
+Page=Страница
+@1 of @2=@1 из @2
+Filter=Фильтр
+Can use the creative inventory=Можно использовать инвентарь творческого режима
+Crafting Grid=Решетка крафта
+Crafting Guide=Книга рецептов
+Set home position=Установить позицию дома
+Home position set to: @1=Дом теперь расположен по коодинатам: @1
+You don't have the "home" privilege!=У вас нет привилегии "home"!
+Go home=Отправиться домой
+Set time to day=День
+Time of day set to 6am=Установлено время 6 утра
+You don't have the settime privilege!=Вам не разрешено устанавливать время! (нет привилегии "settime")
+Set time to night=Ночь
+Time of day set to 9pm=Установлено время 9 вечера
+Clear inventory=Очистить инвентарь
+Inventory cleared!=Инвентарь очищен!
+Trash:=Мусор:
+Refill:=Наполнить:
+Any item belonging to the @1 group=Любой элемент из группы: @1
+Any item belonging to the groups @1=Любой элемент из группы: @1
+Recipe @1 of @2=Рецепт @1 из @2
+Usage @1 of @2=Вариант @1 of @2
+No recipes=Рецептов нет
+No usages=Не используется
+Result=Результат
+Ingredient=Состав
+Show next recipe=Следующий рецепт
+Show next usage=Следующее использование
+Show previous recipe=Прошлый рецепт
+Show previous usage=Прошлая страница
+Give me:=Дай мне:
+To craft grid:=На решeтку крафта:
+All=Все
+White=Белый
+Yellow=Желтый
+Red=Красный
+Green=Зелёный
+Blue=Синий
+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
+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
+Change color of waypoint display=Поменять цвет путевой точки
+Edit waypoint name=Переименовать путевую точку
+Waypoint active=Путевая точка включена
+Waypoint inactive=Путевая точка выключена
+Finish editing=Закончить редакцию
+World position=Позиция мира
+Name=Имя
+HUD text color=Цвет текста HUDа

locale/unified_inventory.template.tr

@@ -0,0 +1,100 @@
+# textdomain: unified_inventory
+
+# waypoints.lua
+
+White=
+Yellow=
+Red=
+Green=
+Blue=
+Waypoints=
+Select Waypoint #@1=
+Waypoint @1=
+Set waypoint to current location=
+Make waypoint @1=
+invisible=
+visible=
+@1 display of waypoint coordinates=
+Disable=
+Enable=
+Change color of waypoint display=
+Edit waypoint name=
+Waypoint active=
+Waypoint inactive=
+Finish editing=
+World position=
+Name=
+HUD text color=
+
+# group.lua
+
+ and =
+
+# register.lua
+
+Can use the creative inventory=
+Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally=
+Crafting Grid=
+Crafting Guide=
+Set home position=
+Home position set to: @1=
+You don't have the \"home\" privilege!=
+Go home=
+Set time to day=
+Set time to night=
+Time of day set to 6am=
+Time of day set to 9pm=
+You don't have the settime privilege!=
+Clear inventory=
+Inventory cleared!=
+This button has been disabled outside=
+Crafting=
+Trash:=
+Refill:=
+Any item belonging to the @1 group=
+Any item belonging to the groups @1=
+Recipe @1 of @2=
+Usage @1 of @2=
+No recipes=
+No usages=
+Result=
+Ingredient=
+Show next recipe=
+Show next usage=
+Show previous recipe=
+Show previous usage=
+@1 (@2)=
+Give me:=
+This recipe is too@nlarge to be displayed.=
+To craft grid:=
+All=
+
+# api.lua
+
+Mixing=
+Cooking=
+Digging=
+
+# internal.lua
+
+First page=
+Back three pages=
+Back one page=
+Forward one page=
+Forward three pages=
+Last page=
+Search=
+Reset search and display everything=
+No matching items=
+No matches.=
+Page=
+@1 of @2=
+Filter=
+
+# bags.lua
+
+Bags=
+Bag @1=
+Small Bag=
+Medium Bag=
+Large Bag=

locale/unified_inventory.tr.tr

@@ -0,0 +1,69 @@
+# textdomain: unified_inventory
+Crafting=Üretim
+Mixing=Karıştırma
+Cooking=Pişirme
+Digging=Kazma
+Bags=Çantalarım
+Bag @1=@1. Çanta
+Small Bag=Küçük Çanta
+Medium Bag=Çanta
+Large Bag=Büyük Çanta
+ and = ve 
+First page=İlk Sayfa
+Back three pages=3 Sayfa Gerile
+Back one page=Geri
+Forward one page=İleri
+Forward three pages=3 Sayfa İlerile
+Last page=Son Sayfa
+Search=Ara
+No matching items=Eşleşme yok
+No matches.=Eşleşme yok
+Page=Sayfa
+@1 of @2=@1 dan @2
+Filter=Süzgeç
+Can use the creative inventory=Yaratıcı envanteri kullanabilir
+Crafting Grid=Üretim tablosu
+Crafting Guide=Kılavuz
+Set home position=Set ev pozisyon
+Home position set to: @1=Yeni eviniz: @1
+You don't have the "home" privilege!="home" yetkiniz yok!
+Go home=Eve git
+Set time to day=Güne zaman ayarla
+Time of day set to 6am=Saat 06:00 olarak ayarlandı
+You don't have the settime privilege!="settime" yetkiniz yok!
+Set time to night=Geceye zaman ayarla
+Time of day set to 9pm=Saat 19:00 olarak ayarlandı
+msgid ""=Yaratıcı modu dışında iken bu tuş kullanılamaz.
+Inventory cleared!=Envanter temizlendi!
+Trash:=Çöp
+Refill:=Doldur
+Recipe @1 of @2=@1 dan @2 tarifi
+Usage @1 of @2=Kullanım @1/@2
+No recipes=Tarifi yok
+No usages=Kullanım yok
+Result=Çıktı
+Ingredient=Bileşen
+Give me:=Ver bana:
+To craft grid:=Üretim tablosuna kopyala
+All=Tümü
+White=Beyaz
+Yellow=Sarı
+Red=Kırmızı
+Green=Yeşil
+Blue=Mavi
+Waypoints=Konum Noktaları
+Select Waypoint #@1=#@1 konum noktası seç
+Waypoint @1=@1 Konum Noktaları
+Set waypoint to current location=Bulunduğun noktayı işaretle
+invisible=görünmez
+visible=görünür
+Make waypoint @1=Yol noktası @1
+@1 display of waypoint coordinates=Yol noktası koordinatlarının görüntülenmesini @1
+Change color of waypoint display=Konum Gösterge Rengi
+Edit waypoint name=Konum Noktasını Düzenle
+Waypoint active=Konum Etkin
+Waypoint inactive=Konum Devredışı
+Finish editing=Düzenleme bitti
+World position=Dünya konumu
+Name=İsim
+HUD text color=Metin rengi

locale/unified_inventory.zh_CN.tr

@@ -0,0 +1,79 @@
+# textdomain: unified_inventory
+# traslation by: IFRFSX(BingFengFSX)
+#Email: IFRFSX@Protonmail.com
+
+Crafting=合成
+Mixing=混合
+Cooking=烹饪
+Digging=挖出
+Bags=背包
+Bag @1=背包@1
+Small Bag=小背包
+Medium Bag=中背包
+Large Bag=大背包
+ and = 和 
+First page=第一页
+Back three pages=后退三页
+Back one page=后退一页
+Forward one page=前进一页
+Forward three pages=前进三页
+Last page=最后一页
+Search=搜索
+No matching items=没有匹配物品
+No matches.=没有匹配
+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
+Crafting Grid=合成表
+Crafting Guide=合成指南
+Set home position=设置家的位置
+Home position set to: @1=家的位置设置到： @1
+You don't have the "home" privilege!=你没有“home”权限！
+Go home=回家
+Set time to day=设置时间到白天
+Time of day set to 6am=时间设置到早晨6点
+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
+
+Inventory cleared!=清空背包
+Clear inventory=清空背包
+
+Trash:=丢弃：
+Refill:=填满：
+Recipe @1 of @2=第@1配方，共@2个
+Usage @1 of @2=第@1用法，共@2个
+No recipes=没有配方
+No usages=没有用法
+Result=结果
+Ingredient=原料
+Give me:=给予：
+To craft grid:=填充物品到合成表
+All=全部
+White=白
+Yellow=黄
+Red=红
+Green=绿
+Blue=蓝
+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
+invisible=不可见的
+visible=可见的
+Make waypoint @1=设置航路点 @1
+@1 display of waypoint coordinates=显示航路点@1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
+Waypoint inactive=航路点未激活
+Finish editing=完成编辑
+World position=世界位置
+Name=名称
+HUD text color=HUD文本颜色
+
+Reset search and display everything=重置搜索并显示所有物品
+
+Any item belonging to the @1 group=属于@1组的任何项目
+Any item belonging to the groups @1=属于组@1的任何项目

locale/unified_inventory.zh_TW.tr

@@ -0,0 +1,79 @@
+# textdomain: unified_inventory
+# traslation by: IFRFSX(BingFengFSX)
+#Email: IFRFSX@Protonmail.com
+
+Crafting=合成
+Mixing=混合
+Cooking=烹飪
+Digging=挖出
+Bags=揹包
+Bag @1=揹包@1
+Small Bag=小揹包
+Medium Bag=中揹包
+Large Bag=大揹包
+ and = 和 
+First page=第一頁
+Back three pages=後退三頁
+Back one page=後退一頁
+Forward one page=前進一頁
+Forward three pages=前進三頁
+Last page=最後一頁
+Search=搜索
+No matching items=沒有匹配物品
+No matches.=沒有匹配
+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
+Crafting Grid=合成表
+Crafting Guide=合成指南
+Set home position=設置家的位置
+Home position set to: @1=家的位置設置到： @1
+You don't have the "home" privilege!=你沒有“home”權限！
+Go home=回家
+Set time to day=設置時間到白天
+Time of day set to 6am=時間設置到早晨6點
+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
+
+Inventory cleared!=清空揹包
+Clear inventory=清空揹包
+
+Trash:=丟棄：
+Refill:=填滿：
+Recipe @1 of @2=第@1配方，共@2個
+Usage @1 of @2=第@1用法，共@2個
+No recipes=沒有配方
+No usages=沒有用法
+Result=結果
+Ingredient=原料
+Give me:=給予：
+To craft grid:=填充物品到合成表
+All=全部
+White=白
+Yellow=黃
+Red=紅
+Green=綠
+Blue=藍
+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
+invisible=不可見的
+visible=可見的
+Make waypoint @1=設置航路點 @1
+@1 display of waypoint coordinates=顯示航路點@1座標
+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
+Waypoint inactive=航路點未激活
+Finish editing=完成編輯
+World position=世界位置
+Name=名稱
+HUD text color=HUD文本顏色
+
+Reset search and display everything=重置搜索並顯示所有物品
+
+Any item belonging to the @1 group=屬於@1組的任何項目
+Any item belonging to the groups @1=屬於組@1的任何項目

match_craft.lua

@@ -0,0 +1,409 @@
+-- match_craft.lua
+-- Find and automatically move inventory items to the crafting grid
+-- according to the recipe.
+
+--[[
+Retrieve items from inventory lists and calculate their total count.
+Return a table of "item name" - "total count" pairs.
+
+Arguments:
+	inv: minetest inventory reference
+	lists: names of inventory lists to use
+
+Example usage:
+	-- Count items in "main" and "craft" lists of player inventory
+	unified_inventory.count_items(player_inv_ref, {"main", "craft"})
+
+Example output:
+	{
+		["default:pine_wood"] = 2,
+		["default:acacia_wood"] = 4,
+		["default:chest"] = 3,
+		["default:axe_diamond"] = 2, -- unstackable item are counted too
+		["wool:white"] = 6
+	}
+]]--
+function unified_inventory.count_items(inv, lists)
+	local counts = {}
+
+	for i = 1, #lists do
+		local name = lists[i]
+		local size = inv:get_size(name)
+		local list = inv:get_list(name)
+
+		for j = 1, size do
+			local stack = list[j]
+
+			if not stack:is_empty() then
+				local item = stack:get_name()
+				local count = stack:get_count()
+
+				counts[item] = (counts[item] or 0) + count
+			end
+		end
+	end
+
+	return counts
+end
+
+--[[
+Retrieve craft recipe items and their positions in the crafting grid.
+Return a table of "craft item name" - "set of positions" pairs.
+
+Note that if craft width is not 3 then positions are recalculated as
+if items were placed on a 3x3 grid. Also note that craft can contain
+groups of items with "group:" prefix.
+
+Arguments:
+	craft: minetest craft recipe
+
+Example output:
+	-- Bed recipe
+	{
+		["wool:white"] = {[1] = true, [2] = true, [3] = true}
+		["group:wood"] = {[4] = true, [5] = true, [6] = true}
+	}
+--]]
+function unified_inventory.count_craft_positions(craft)
+	local positions = {}
+	local craft_items = craft.items
+	local craft_type = unified_inventory.registered_craft_types[craft.type]
+	                   or unified_inventory.craft_type_defaults(craft.type, {})
+	local display_width = craft_type.dynamic_display_size
+	                      and craft_type.dynamic_display_size(craft).width
+	                      or craft_type.width
+	local craft_width = craft_type.get_shaped_craft_width
+	                    and craft_type.get_shaped_craft_width(craft)
+	                    or display_width
+	local i = 0
+
+	for y = 1, 3 do
+		for x = 1, craft_width do
+			i = i + 1
+			local item = craft_items[i]
+
+			if item ~= nil then
+				local pos = 3 * (y - 1) + x
+				local set = positions[item]
+
+				if set ~= nil then
+					set[pos] = true
+				else
+					positions[item] = {[pos] = true}
+				end
+			end
+		end
+	end
+
+	return positions
+end
+
+--[[
+For every craft item find all matching inventory items.
+- If craft item is a group then find all inventory items that matches
+  this group.
+- If craft item is not a group (regular item) then find only this item.
+
+If inventory doesn't contain needed item then found set is empty for
+this item.
+
+Return a table of "craft item name" - "set of matching inventory items"
+pairs.
+
+Arguments:
+	inv_items: table with items names as keys
+	craft_items: table with items names or groups as keys
+
+Example output:
+	{
+		["group:wood"] = {
+			["default:pine_wood"] = true,
+			["default:acacia_wood"] = true
+		},
+		["wool:white"] = {
+			["wool:white"] = true
+		}
+	}
+--]]
+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:(.+)")
+		local found = {}
+
+		if group ~= nil then
+			for inv_item in pairs(inv_items) do
+				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
+
+	return result
+end
+
+--[[
+Match inventory items with craft grid positions.
+For every position select the matching inventory item with maximum
+(total_count / (times_matched + 1)) value.
+
+If for some position matching item cannot be found or match count is 0
+then return nil.
+
+Return a table of "matched item name" - "set of craft positions" pairs
+and overall match count.
+
+Arguments:
+	inv_counts: table of inventory items counts from "count_items"
+	craft_positions: table of craft positions from "count_craft_positions"
+
+Example output:
+	match_table = {
+		["wool:white"] = {[1] = true, [2] = true, [3] = true}
+		["default:acacia_wood"] = {[4] = true, [6] = true}
+		["default:pine_wood"] = {[5] = true}
+	}
+	match_count = 2
+--]]
+function unified_inventory.match_items(inv_counts, craft_positions)
+	local usable = unified_inventory.find_usable_items(inv_counts, craft_positions)
+	local match_table = {}
+	local match_count
+	local matches = {}
+
+	for craft_item, pos_set in pairs(craft_positions) do
+		local use_set = usable[craft_item]
+
+		for pos in pairs(pos_set) do
+			local pos_item
+			local pos_count
+
+			for use_item in pairs(use_set) do
+				local count = inv_counts[use_item]
+				local times_matched = matches[use_item] or 0
+				local new_pos_count = math.floor(count / (times_matched + 1))
+
+				if pos_count == nil or pos_count < new_pos_count then
+					pos_item = use_item
+					pos_count = new_pos_count
+				end
+			end
+
+			if pos_item == nil or pos_count == 0 then
+				return nil
+			end
+
+			local set = match_table[pos_item]
+
+			if set ~= nil then
+				set[pos] = true
+			else
+				match_table[pos_item] = {[pos] = true}
+			end
+
+			matches[pos_item] = (matches[pos_item] or 0) + 1
+		end
+	end
+
+	for match_item, times_matched in pairs(matches) do
+		local count = inv_counts[match_item]
+		local item_count = math.floor(count / times_matched)
+
+		if match_count == nil or item_count < match_count then
+			match_count = item_count
+		end
+	end
+
+	return match_table, match_count
+end
+
+--[[
+Remove item from inventory lists.
+Return stack of actually removed items.
+
+This function replicates the inv:remove_item function but can accept
+multiple lists.
+
+Arguments:
+	inv: minetest inventory reference
+	lists: names of inventory lists
+	stack: minetest item stack
+--]]
+function unified_inventory.remove_item(inv, lists, stack)
+	local removed = ItemStack(nil)
+	local leftover = ItemStack(stack)
+
+	for i = 1, #lists do
+		if leftover:is_empty() then
+			break
+		end
+
+		local cur_removed = inv:remove_item(lists[i], leftover)
+		removed:add_item(cur_removed)
+		leftover:take_item(cur_removed:get_count())
+	end
+
+	return removed
+end
+
+--[[
+Add item to inventory lists.
+Return leftover stack.
+
+This function replicates the inv:add_item function but can accept
+multiple lists.
+
+Arguments:
+	inv: minetest inventory reference
+	lists: names of inventory lists
+	stack: minetest item stack
+--]]
+function unified_inventory.add_item(inv, lists, stack)
+	local leftover = ItemStack(stack)
+
+	for i = 1, #lists do
+		if leftover:is_empty() then
+			break
+		end
+
+		leftover = inv:add_item(lists[i], leftover)
+	end
+
+	return leftover
+end
+
+--[[
+Move items from source list to destination list if possible.
+Skip positions specified in exclude set.
+
+Arguments:
+	inv: minetest inventory reference
+	src_list: name of source list
+	dst_list: name of destination list
+	exclude: set of positions to skip
+--]]
+function unified_inventory.swap_items(inv, src_list, dst_list, exclude)
+	local size = inv:get_size(src_list)
+	local empty = ItemStack(nil)
+
+	for i = 1, size do
+		if exclude == nil or exclude[i] == nil then
+			local stack = inv:get_stack(src_list, i)
+
+			if not stack:is_empty() then
+				inv:set_stack(src_list, i, empty)
+				local leftover = inv:add_item(dst_list, stack)
+
+				if not leftover:is_empty() then
+					inv:set_stack(src_list, i, leftover)
+				end
+			end
+		end
+	end
+end
+
+--[[
+Move matched items to the destination list.
+
+If destination list position is already occupied with some other item
+then function tries to (in that order):
+1. Move it to the source list
+2. Move it to some other unused position in destination list itself
+3. Drop it to the ground if nothing else is possible.
+
+Arguments:
+	player: minetest player object
+	src_list: name of source list
+	dst_list: name of destination list
+	match_table: table of matched items
+	amount: amount of items per every position
+--]]
+function unified_inventory.move_match(player, src_list, dst_list, match_table, amount)
+	local inv = player:get_inventory()
+	local item_drop = minetest.item_drop
+	local src_dst_list = {src_list, dst_list}
+	local dst_src_list = {dst_list, src_list}
+
+	local needed = {}
+	local moved = {}
+
+	-- Remove stacks needed for craft
+	for item, pos_set in pairs(match_table) do
+		local stack = ItemStack(item)
+		local stack_max = stack:get_stack_max()
+		local bounded_amount = math.min(stack_max, amount)
+		stack:set_count(bounded_amount)
+
+		for pos in pairs(pos_set) do
+			needed[pos] = unified_inventory.remove_item(inv, dst_src_list, stack)
+		end
+	end
+
+	-- Add already removed stacks
+	for pos, stack in pairs(needed) do
+		local occupied = inv:get_stack(dst_list, pos)
+		inv:set_stack(dst_list, pos, stack)
+
+		if not occupied:is_empty() then
+			local leftover = unified_inventory.add_item(inv, src_dst_list, occupied)
+
+			if not leftover:is_empty() then
+				inv:set_stack(dst_list, pos, leftover)
+				local oversize = unified_inventory.add_item(inv, src_dst_list, stack)
+
+				if not oversize:is_empty() then
+					item_drop(oversize, player, player:get_pos())
+				end
+			end
+		end
+
+		moved[pos] = true
+	end
+
+	-- Swap items from unused positions to src (moved positions excluded)
+	unified_inventory.swap_items(inv, dst_list, src_list, moved)
+end
+
+--[[
+Find craft match and move matched items to the destination list.
+
+If match cannot be found or match count is smaller than the desired
+amount then do nothing.
+
+If amount passed is -1 then amount is defined by match count itself.
+This is used to indicate "craft All" case.
+
+Arguments:
+	player: minetest player object
+	src_list: name of source list
+	dst_list: name of destination list
+	craft: minetest craft recipe
+	amount: desired amount of output items
+--]]
+function unified_inventory.craftguide_match_craft(player, src_list, dst_list, craft, amount)
+	local inv = player:get_inventory()
+	local src_dst_list = {src_list, dst_list}
+
+	local counts = unified_inventory.count_items(inv, src_dst_list)
+	local positions = unified_inventory.count_craft_positions(craft)
+	local match_table, match_count = unified_inventory.match_items(counts, positions)
+
+	if match_table == nil or match_count < amount then
+		return
+	end
+
+	if amount == -1 then
+		amount = match_count
+	end
+
+	unified_inventory.move_match(player, src_list, dst_list, match_table, amount)
+end

mod.conf

@@ -0,0 +1,7 @@
+name = unified_inventory
+depends = default
+optional_depends = creative, sfinv, datastorage, farming
+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

@@ -1,9 +1,18 @@
+local S = minetest.get_translator("unified_inventory")
+local NS = function(s) return s end
+local F = minetest.formspec_escape
 
 minetest.register_privilege("creative", {
-	description = "Can use the creative inventory",
+	description = S("Can use the creative inventory"),
 	give_to_singleplayer = false,
 })
 
+minetest.register_privilege("ui_full", {
+	description = S("Forces Unified Inventory to be displayed in Full mode if Lite mode is configured globally"),
+	give_to_singleplayer = false,
+})
+
+
 local trash = minetest.create_detached_inventory("trash", {
 	--allow_put = function(inv, listname, index, stack, player)
 	--	if unified_inventory.is_creative(player:get_player_name()) then
@@ -23,43 +32,69 @@ trash:set_size("main", 1)
 unified_inventory.register_button("craft", {
 	type = "image",
 	image = "ui_craft_icon.png",
+	tooltip = S("Crafting Grid")
 })
 
 unified_inventory.register_button("craftguide", {
 	type = "image",
 	image = "ui_craftguide_icon.png",
+	tooltip = S("Crafting Guide")
 })
 
 unified_inventory.register_button("home_gui_set", {
 	type = "image",
 	image = "ui_sethome_icon.png",
+	tooltip = S("Set home position"),
+	hide_lite=true,
 	action = function(player)
 		local player_name = player:get_player_name()
-		unified_inventory.set_home(player, player:getpos())
-		local home = unified_inventory.home_pos[player_name]
-		if home ~= nil then
-			minetest.sound_play("dingdong",
-					{to_player=player_name, gain = 1.0})
+		if minetest.check_player_privs(player_name, {home=true}) then
+			unified_inventory.set_home(player, player:get_pos())
+			local home = unified_inventory.home_pos[player_name]
+			if home ~= nil then
+				minetest.sound_play("dingdong",
+						{to_player=player_name, gain = 1.0})
+				minetest.chat_send_player(player_name,
+					S("Home position set to: @1", minetest.pos_to_string(home)))
+			end
+		else
 			minetest.chat_send_player(player_name,
-					"Home position set to: "
-					..minetest.pos_to_string(home))
+				S("You don't have the \"home\" privilege!"))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 		end
 	end,
+	condition = function(player)
+		return minetest.check_player_privs(player:get_player_name(), {home=true})
+	end,
 })
 
 unified_inventory.register_button("home_gui_go", {
 	type = "image",
 	image = "ui_gohome_icon.png",
+	tooltip = S("Go home"),
+	hide_lite=true,
 	action = function(player)
-		minetest.sound_play("teleport",
-				{to_player=player:get_player_name(), gain = 1.0})
-		unified_inventory.go_home(player)
+		local player_name = player:get_player_name()
+		if minetest.check_player_privs(player_name, {home=true}) then
+			if unified_inventory.go_home(player) then
+				minetest.sound_play("teleport", {to_player = player_name})
+			end
+		else
+			minetest.chat_send_player(player_name,
+				S("You don't have the \"home\" privilege!"))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
+		end
+	end,
+	condition = function(player)
+		return minetest.check_player_privs(player:get_player_name(), {home=true})
 	end,
 })
 
 unified_inventory.register_button("misc_set_day", {
 	type = "image",
 	image = "ui_sun_icon.png",
+	tooltip = S("Set time to day"),
+	hide_lite=true,
 	action = function(player)
 		local player_name = player:get_player_name()
 		if minetest.check_player_privs(player_name, {settime=true}) then
@@ -67,18 +102,23 @@ unified_inventory.register_button("misc_set_day", {
 					{to_player=player_name, gain = 1.0})
 			minetest.set_timeofday((6000 % 24000) / 24000)
 			minetest.chat_send_player(player_name,
-					"Time of day set to 6am")
+				S("Time of day set to 6am"))
 		else
 			minetest.chat_send_player(player_name,
-					"You don't have the"
-					.." settime priviledge!")
+				S("You don't have the settime privilege!"))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 		end
 	end,
+	condition = function(player)
+		return minetest.check_player_privs(player:get_player_name(), {settime=true})
+	end,
 })
 
 unified_inventory.register_button("misc_set_night", {
 	type = "image",
 	image = "ui_moon_icon.png",
+	tooltip = S("Set time to night"),
+	hide_lite=true,
 	action = function(player)
 		local player_name = player:get_player_name()
 		if minetest.check_player_privs(player_name, {settime=true}) then
@@ -86,220 +126,364 @@ unified_inventory.register_button("misc_set_night", {
 					{to_player=player_name, gain = 1.0})
 			minetest.set_timeofday((21000 % 24000) / 24000)
 			minetest.chat_send_player(player_name,
-					"Time of day set to 9pm")
+					S("Time of day set to 9pm"))
 		else
 			minetest.chat_send_player(player_name,
-					"You don't have the"
-					.." settime priviledge!")
+					S("You don't have the settime privilege!"))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 		end
 	end,
+	condition = function(player)
+		return minetest.check_player_privs(player:get_player_name(), {settime=true})
+	end,
 })
 
 unified_inventory.register_button("clear_inv", {
 	type = "image",
 	image = "ui_trash_icon.png",
+	tooltip = S("Clear inventory"),
 	action = function(player)
 		local player_name = player:get_player_name()
 		if not unified_inventory.is_creative(player_name) then
 			minetest.chat_send_player(player_name,
-					"This button has been disabled outside"
+					S("This button has been disabled outside"
 					.." of creative mode to prevent"
 					.." accidental inventory trashing."
-					.." Use the trash slot instead.")
+					.."\nUse the trash slot instead."))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 			return
 		end
 		player:get_inventory():set_list("main", {})
-		minetest.chat_send_player(player_name, 'Inventory Cleared!')
+		minetest.chat_send_player(player_name, S('Inventory cleared!'))
 		minetest.sound_play("trash_all",
 				{to_player=player_name, gain = 1.0})
 	end,
+	condition = function(player)
+		return unified_inventory.is_creative(player:get_player_name())
+	end,
 })
 
 unified_inventory.register_page("craft", {
-	get_formspec = function(player, formspec)
+	get_formspec = function(player, perplayer_formspec)
+
+		local formspecy = perplayer_formspec.formspec_y
+		local formheadery =  perplayer_formspec.form_header_y
+
 		local player_name = player:get_player_name()
-		local formspec = "background[0,1;8,3;ui_crafting_form.png]"
-		formspec = formspec.."background[0,4.5;8,4;ui_main_inventory.png]"
-		formspec = formspec.."label[0,0;Crafting]"
+		local formspec = "background[2,"..formspecy..";6,3;ui_crafting_form.png]"
+		formspec = formspec..string.gsub(unified_inventory.standard_inv_bg, "YYY", (formspecy + 3.4))
+		formspec = formspec.."label[0,"..formheadery..";" ..F(S("Crafting")).."]"
 		formspec = formspec.."listcolors[#00000000;#00000000]"
-		formspec = formspec.."list[current_player;craftpreview;6,1;1,1;]"
-		formspec = formspec.."list[current_player;craft;2,1;3,3;]"
-		formspec = formspec.."label[7,2.5;Trash:]"
-		formspec = formspec.."list[detached:trash;main;7,3;1,1;]"
+		formspec = formspec.."list[current_player;craftpreview;6,"..formspecy..";1,1;]"
+		formspec = formspec.."list[current_player;craft;2,"..formspecy..";3,3;]"
+		if unified_inventory.trash_enabled or unified_inventory.is_creative(player_name) or minetest.get_player_privs(player_name).give then
+			formspec = formspec.."label[7,"..(formspecy + 1.5)..";" .. F(S("Trash:")) .. "]"
+			formspec = formspec.."background[7,"..(formspecy + 2)..";1,1;ui_single_slot.png]"
+			formspec = formspec.."list[detached:trash;main;7,"..(formspecy + 2)..";1,1;]"
+		end
+		formspec = formspec.."listring[current_name;craft]"
+		formspec = formspec.."listring[current_player;main]"
 		if unified_inventory.is_creative(player_name) then
-			formspec = formspec.."label[0,2.5;Refill:]"
-			formspec = formspec.."list[detached:"..player_name.."refill;main;0,3;1,1;]"
+			formspec = formspec.."label[0,"..(formspecy + 1.5)..";" .. F(S("Refill:")) .. "]"
+			formspec = formspec.."list[detached:"..F(player_name).."refill;main;0,"..(formspecy +2)..";1,1;]"
 		end
 		return {formspec=formspec}
 	end,
 })
 
+-- stack_image_button(): generate a form button displaying a stack of items
+--
+-- The specified item may be a group.  In that case, the group will be
+-- represented by some item in the group, along with a flag indicating
+-- that it's a group.  If the group contains only one item, it will be
+-- treated as if that item had been specified directly.
+
+local function stack_image_button(x, y, w, h, buttonname_prefix, item)
+	local name = item:get_name()
+	local count = item:get_count()
+	local show_is_group = false
+	local displayitem = name.." "..count
+	local selectitem = name
+	if name:sub(1, 6) == "group:" then
+		local group_name = name:sub(7)
+		local group_item = unified_inventory.get_group_item(group_name)
+		show_is_group = not group_item.sole
+		displayitem = group_item.item or "unknown"
+		selectitem = group_item.sole and displayitem or name
+	end
+	local label = show_is_group and "G" or ""
+	local buttonname = F(buttonname_prefix..unified_inventory.mangle_for_formspec(selectitem))
+	local button = string.format("item_image_button[%f,%f;%f,%f;%s;%s;%s]",
+			x, y, w, h,
+			F(displayitem), buttonname, label)
+	if show_is_group then
+		local groupstring, andcount = unified_inventory.extract_groupnames(name)
+		local grouptip
+		if andcount == 1 then
+			grouptip = S("Any item belonging to the @1 group", groupstring)
+		elseif andcount > 1 then
+			grouptip = S("Any item belonging to the groups @1", groupstring)
+		end
+		grouptip = F(grouptip)
+		if andcount >= 1 then
+			button = button  .. string.format("tooltip[%s;%s]", buttonname, grouptip)
+		end
+	end
+	return button
+end
+
+local recipe_text = {
+	recipe = NS("Recipe @1 of @2"),
+	usage = NS("Usage @1 of @2"),
+}
+local no_recipe_text = {
+	recipe = S("No recipes"),
+	usage = S("No usages"),
+}
+local role_text = {
+	recipe = S("Result"),
+	usage = S("Ingredient"),
+}
+local next_alt_text = {
+	recipe = S("Show next recipe"),
+	usage = S("Show next usage"),
+}
+local prev_alt_text = {
+	recipe = S("Show previous recipe"),
+	usage = S("Show previous usage"),
+}
+local other_dir = {
+	recipe = "usage",
+	usage = "recipe",
+}
+
 unified_inventory.register_page("craftguide", {
-	get_formspec = function(player)
+	get_formspec = function(player, perplayer_formspec)
+
+		local formspecy =    perplayer_formspec.formspec_y
+		local formheadery =  perplayer_formspec.form_header_y
+		local craftresultx = perplayer_formspec.craft_result_x
+		local craftresulty = perplayer_formspec.craft_result_y
+
 		local player_name = player:get_player_name()
-		local formspec = "background[0,1;8,3;ui_craftguide_form.png]"
-		formspec = formspec.."background[0,4.5;8,4;ui_main_inventory.png]"
-		formspec = formspec.."label[0,0;Crafting Guide]"
-		formspec = formspec.."listcolors[#00000000;#00000000]"
-		formspec = formspec.."list[detached:"..player_name.."craftrecipe;output;6,1;1,1;]"
-		formspec = formspec.."label[6,3.35;Method:]"
+		local player_privs = minetest.get_player_privs(player_name)
+		local fs = {
+			string.gsub(unified_inventory.standard_inv_bg, "YYY", (formspecy + 3.4)),
+			"label[0,"..formheadery..";" .. F(S("Crafting Guide")) .. "]",
+			"listcolors[#00000000;#00000000]"
+		}
 		local item_name = unified_inventory.current_item[player_name]
-		local craft = nil
-		if item_name then
-			formspec = formspec.."textarea[0.3,0.6;10,1;;Result: "..item_name..";]"
-			local alternates = 0
-			local alternate = unified_inventory.alternate[player_name]
-			local crafts = unified_inventory.crafts_table[item_name]
-			if crafts ~= nil and #crafts > 0 then
-				alternates = #crafts
-				craft = crafts[alternate]
-				local method = craft.type
-				local allow_auto_craft = ((method == "normal") or (method == "shapeless"))
-				if craft.type == "normal" then
-					method = "crafting"
-				elseif craft.type == "shapeless" then
-					method = "shapeless crafting"
-				elseif craft.type == "alloy" then
-					method = "alloy cooking"
-				end
-				formspec = formspec.."label[6,3.75;"..method.."]"
-				if allow_auto_craft then
-					formspec = formspec.."label[6,1.95;Copy to craft grid:]"
-							.."button[6,2.5;0.6,0.5;craftguide_craft_1;1]"
-							.."button[6.6,2.5;0.6,0.5;craftguide_craft_10;10]"
-							.."button[7.2,2.5;0.6,0.5;craftguide_craft_max;All]"
-				end
-			end
-			if alternates > 1 then
-				formspec = formspec.."label[0,2.6;Recipe "
-						..tostring(alternate).." of "
-						..tostring(alternates).."]"
-						.."button[0,3.15;2,1;alternate;Alternate]"
-			end
+		if not item_name then
+			return { formspec = table.concat(fs) }
 		end
 
-		local craftinv = minetest.get_inventory({
-			type = "detached",
-			name = player_name.."craftrecipe"
-		})
+		local item_name_shown
+		if minetest.registered_items[item_name]
+				and minetest.registered_items[item_name].description then
+			item_name_shown = S("@1 (@2)",
+				minetest.registered_items[item_name].description, item_name)
+		else
+			item_name_shown = item_name
+		end
 
-		-- fake buttons just to make 3x3 grid
-		for y = 1, 3 do
-		for x = 1, 3 do
-			formspec = formspec.."image_button["
-				..(1.0 + x)..","..(0.0 + y)..";1.1,1.1;ui_blank_image.png;;]"
-		end
+		local dir = unified_inventory.current_craft_direction[player_name]
+		local rdir = dir == "recipe" and "usage" or "recipe"
+
+		local crafts = unified_inventory.crafts_for[dir][item_name]
+		local alternate = unified_inventory.alternate[player_name]
+		local alternates, craft
+		if crafts and #crafts > 0 then
+			alternates = #crafts
+			craft = crafts[alternate]
 		end
+		local has_give = player_privs.give or unified_inventory.is_creative(player_name)
+
+		fs[#fs + 1] = "background[0.5,"..(formspecy + 0.2)..";8,3;ui_craftguide_form.png]"
+		fs[#fs + 1] = string.format("textarea[%f,%f;10,1;;%s: %s;]",
+				craftresultx, craftresulty, F(role_text[dir]), item_name_shown)
+		fs[#fs + 1] = stack_image_button(0, formspecy, 1.1, 1.1,
+				"item_button_" .. rdir .. "_", ItemStack(item_name))
 
 		if not craft then
-			craftinv:set_stack("output", 1, nil)
-			return {formspec=formspec}
-		end
-
-		craftinv:set_stack("output", 1, craft.output)
-
-		local width = craft.width
-		if width == 0 then
-			-- Shapeless recipe
-			width = 3
-		end
-
-		local i = 1
-		for y = 1, 3 do
-		for x = 1, width do
-			local item = craft.items[i]
-			if item then
-				if string.sub(item, 1, 6) == "group:" then
-					local group = string.sub(item, 7)
-					formspec = formspec.."image_button["
-						..(1.0 + x)..","..(0.0 + y)..";1.1,1.1;"
-						.."ui_group.png;"
-						.."item_group_"..minetest.formspec_escape(group)..";"
-						..minetest.formspec_escape(group).."]"
-				else
-					formspec = formspec.."item_image_button["
-						..(1.0 + x)..","..(0.0 + y)..";1.1,1.1;"
-						..minetest.formspec_escape(item)..";"
-						.."item_button_"
-						..minetest.formspec_escape(item)..";]"
-				end
+			-- No craft recipes available for this item.
+			fs[#fs + 1] = "label[5.5,"..(formspecy + 2.35)..";"
+					.. F(no_recipe_text[dir]) .. "]"
+			local no_pos = dir == "recipe" and 4.5 or 6.5
+			local item_pos = dir == "recipe" and 6.5 or 4.5
+			fs[#fs + 1] = "image["..no_pos..","..formspecy..";1.1,1.1;ui_no.png]"
+			fs[#fs + 1] = stack_image_button(item_pos, formspecy, 1.1, 1.1,
+				"item_button_" .. other_dir[dir] .. "_", ItemStack(item_name))
+			if has_give then
+				fs[#fs + 1] = "label[0," .. (formspecy + 2.10) .. ";" .. F(S("Give me:")) .. "]"
+						.. "button[0,  " .. (formspecy + 2.7) .. ";0.6,0.5;craftguide_giveme_1;1]"
+						.. "button[0.6," .. (formspecy + 2.7) .. ";0.7,0.5;craftguide_giveme_10;10]"
+						.. "button[1.3," .. (formspecy + 2.7) .. ";0.8,0.5;craftguide_giveme_99;99]"
+			end
+			return { formspec = table.concat(fs) }
+		end
+
+		local craft_type = unified_inventory.registered_craft_types[craft.type] or
+				unified_inventory.craft_type_defaults(craft.type, {})
+		if craft_type.icon then
+			fs[#fs + 1] = string.format("image[%f,%f;%f,%f;%s]",
+					5.7, (formspecy + 0.05), 0.5, 0.5, craft_type.icon)
+		end
+		fs[#fs + 1] = "label[5.5,"..(formspecy + 1)..";" .. F(craft_type.description).."]"
+		fs[#fs + 1] = stack_image_button(6.5, formspecy, 1.1, 1.1,
+				"item_button_usage_", ItemStack(craft.output))
+
+		local display_size = craft_type.dynamic_display_size
+				and craft_type.dynamic_display_size(craft)
+				or { width = craft_type.width, height = craft_type.height }
+		local craft_width = craft_type.get_shaped_craft_width
+				and craft_type.get_shaped_craft_width(craft)
+				or display_size.width
+
+		-- This keeps recipes aligned to the right,
+		-- so that they're close to the arrow.
+		local xoffset = 5.5
+		-- Offset factor for crafting grids with side length > 4
+		local of = (3/math.max(3, math.max(display_size.width, display_size.height)))
+		local od = 0
+		-- Minimum grid size at which size optimazation measures kick in
+		local mini_craft_size = 6
+		if display_size.width >= mini_craft_size then
+			od = math.max(1, display_size.width - 2)
+			xoffset = xoffset - 0.1
+		end
+		-- Size modifier factor
+		local sf = math.min(1, of * (1.05 + 0.05*od))
+		-- Button size
+		local bsize_h = 1.1 * sf
+		local bsize_w = bsize_h
+		if display_size.width >= mini_craft_size then
+			bsize_w = 1.175 * sf
+		end
+		if (bsize_h > 0.35 and display_size.width) then
+		for y = 1, display_size.height do
+		for x = 1, display_size.width do
+			local item
+			if craft and x <= craft_width then
+				item = craft.items[(y-1) * craft_width + x]
+			end
+			-- Flipped x, used to build formspec buttons from right to left
+			local fx = display_size.width - (x-1)
+			-- x offset, y offset
+			local xof = (fx-1) * of + of
+			local yof = (y-1) * of + 1
+			if item then
+				fs[#fs + 1] = stack_image_button(
+						xoffset - xof, formspecy - 1 + yof, bsize_w, bsize_h,
+						"item_button_recipe_",
+						ItemStack(item))
+			else
+				-- Fake buttons just to make grid
+				fs[#fs + 1] = string.format("image_button[%f,%f;%f,%f;ui_blank_image.png;;]",
+						xoffset - xof, formspecy - 1 + yof, bsize_w, bsize_h)
 			end
-			i = i + 1
 		end
 		end
-		return {formspec=formspec}
+		else
+			-- Error
+			fs[#fs + 1] = string.format("label[2,%f;%s]",
+				formspecy, F(S("This recipe is too@nlarge to be displayed.")))
+		end
+
+		if craft_type.uses_crafting_grid and display_size.width <= 3 then
+			fs[#fs + 1] = "label[0," .. (formspecy + 0.9) .. ";" .. F(S("To craft grid:")) .. "]"
+					.. "button[0,  " .. (formspecy + 1.5) .. ";0.6,0.5;craftguide_craft_1;1]"
+					.. "button[0.6," .. (formspecy + 1.5) .. ";0.7,0.5;craftguide_craft_10;10]"
+					.. "button[1.3," .. (formspecy + 1.5) .. ";0.8,0.5;craftguide_craft_max;" .. F(S("All")) .. "]"
+		end
+		if has_give then
+			fs[#fs + 1] = "label[0," .. (formspecy + 2.1) .. ";" .. F(S("Give me:")) .. "]"
+					.. "button[0,  " .. (formspecy + 2.7) .. ";0.6,0.5;craftguide_giveme_1;1]"
+					.. "button[0.6," .. (formspecy + 2.7) .. ";0.7,0.5;craftguide_giveme_10;10]"
+					.. "button[1.3," .. (formspecy + 2.7) .. ";0.8,0.5;craftguide_giveme_99;99]"
+		end
+
+		if alternates and alternates > 1 then
+			fs[#fs + 1] = "label[5.5," .. (formspecy + 1.6) .. ";"
+					.. F(S(recipe_text[dir], alternate, alternates)) .. "]"
+					.. "image_button[5.5," .. (formspecy + 2) .. ";1,1;ui_left_icon.png;alternate_prev;]"
+					.. "image_button[6.5," .. (formspecy + 2) .. ";1,1;ui_right_icon.png;alternate;]"
+					.. "tooltip[alternate_prev;" .. F(prev_alt_text[dir]) .. "]"
+					.. "tooltip[alternate;" .. F(next_alt_text[dir]) .. "]"
+		end
+		return { formspec = table.concat(fs) }
 	end,
 })
 
-minetest.register_on_player_receive_fields(function(player, formname, fields)
+local function craftguide_giveme(player, formname, fields)
+	local player_name = player:get_player_name()
+	local player_privs = minetest.get_player_privs(player_name)
+	if not player_privs.give and
+			not unified_inventory.is_creative(player_name) then
+		minetest.log("action", "[unified_inventory] Denied give action to player " ..
+			player_name)
+		return
+	end
+
 	local amount
 	for k, v in pairs(fields) do
-		amount = k:match("craftguide_craft_(.*)")
+		amount = k:match("craftguide_giveme_(.*)")
 		if amount then break end
 	end
-	if not amount then return end
-	local player_name = player:get_player_name()
-	local recipe_inv = minetest.get_inventory({
-		type="detached",
-		name=player_name.."craftrecipe",
-	})
+
+	amount = tonumber(amount) or 0
+	if amount == 0 then return end
 
 	local output = unified_inventory.current_item[player_name]
 	if (not output) or (output == "") then return end
 
 	local player_inv = player:get_inventory()
 
-	local crafts = unified_inventory.crafts_table[output]
-	if (not crafts) or (#crafts == 0) then return end
+	player_inv:add_item("main", {name = output, count = amount})
+end
+
+local function craftguide_craft(player, formname, fields)
+	local amount
+	for k, v in pairs(fields) do
+		amount = k:match("craftguide_craft_(.*)")
+		if amount then break end
+	end
+	if not amount then return end
+
+	amount = tonumber(amount) or -1 -- fallback for "all"
+	if amount == 0 or amount < -1 or amount > 99 then return end
+
+	local player_name = player:get_player_name()
+
+	local output = unified_inventory.current_item[player_name] or ""
+	if output == "" then return end
+
+	local crafts = unified_inventory.crafts_for[
+		unified_inventory.current_craft_direction[player_name]][output] or {}
+	if #crafts == 0 then return end
 
 	local alternate = unified_inventory.alternate[player_name]
 
 	local craft = crafts[alternate]
 	if craft.width > 3 then return end
 
-	local needed = craft.items
-
-	local craft_list = player_inv:get_list("craft")
-
-	local width = craft.width
-	if width == 0 then
-		-- Shapeless recipe
-		width = 3
-	end
-
-	if amount == "max" then
-		amount = 99 -- Arbitrary; need better way to do this.
-	else
-		amount = tonumber(amount)
-	end
-
-	for iter = 1, amount do
-		local index = 1
-		for y = 1, 3 do
-			for x = 1, width do
-				local needed_item = needed[index]
-				if needed_item then
-					local craft_index = ((y - 1) * 3) + x
-					local craft_item = craft_list[craft_index]
-					if (not craft_item) or (craft_item:is_empty()) or (craft_item:get_name() == needed_item) then
-						itemname = craft_item and craft_item:get_name() or needed_item
-						local needed_stack = ItemStack(needed_item)
-						if player_inv:contains_item("main", needed_stack) then
-							local count = (craft_item and craft_item:get_count() or 0) + 1
-							if count <= needed_stack:get_definition().stack_max then
-								local stack = ItemStack({name=needed_item, count=count})
-								craft_list[craft_index] = stack
-								player_inv:remove_item("main", needed_stack)
-							end
-						end
-					end
-				end
-				index = index + 1
-			end
-		end
-	end
-
-	player_inv:set_list("craft", craft_list)
+	unified_inventory.craftguide_match_craft(player, "main", "craft", craft, amount)
 
 	unified_inventory.set_inventory_formspec(player, "craft")
+end
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+	if formname ~= "" then
+		return
+	end
+
+	for k, v in pairs(fields) do
+		if k:match("craftguide_craft_") then
+			craftguide_craft(player, formname, fields)
+			return
+		end
+		if k:match("craftguide_giveme_") then
+			craftguide_giveme(player, formname, fields)
+			return
+		end
+	end
 end)

settingtypes.txt

@@ -0,0 +1,11 @@
+#Enabling lite mode enables a smaller and simpler version of the Unified
+#Inventory, optimized for small displays.
+unified_inventory_lite (Lite mode) bool false
+
+#If enabled, bags will be made available which can be used to extend
+#inventory storage size.
+unified_inventory_bags (Enable bags) bool true
+
+#If enabled, the trash slot can be used by those without both creative
+#and the give privilege.
+unified_inventory_trash (Enable trash) bool true

waypoints.lua

@@ -0,0 +1,247 @@
+local S = minetest.get_translator("unified_inventory")
+local F = minetest.formspec_escape
+
+local hud_colors = {
+	{"#FFFFFF", 0xFFFFFF, S("White")},
+	{"#DBBB00", 0xf1d32c, S("Yellow")},
+	{"#DD0000", 0xDD0000, S("Red")},
+	{"#2cf136", 0x2cf136, S("Green")},
+	{"#2c4df1", 0x2c4df1, S("Blue")},
+}
+
+local hud_colors_max = #hud_colors
+
+-- Stores temporary player data (persists until player leaves)
+local waypoints_temp = {}
+
+unified_inventory.register_page("waypoints", {
+	get_formspec = function(player)
+		local player_name = player:get_player_name()
+
+		-- build a "fake" temp entry if the server took too long
+		-- during sign-on and returned an empty entry
+		if not waypoints_temp[player_name] then waypoints_temp[player_name] = {hud = 1} end
+
+		local waypoints = datastorage.get(player_name, "waypoints")
+		local formspec = string.gsub(unified_inventory.standard_inv_bg, "YYY", "4.4") ..
+			"image[0,0;1,1;ui_waypoints_icon.png]" ..
+			"label[1,0;" .. F(S("Waypoints")) .. "]"
+
+		-- Tabs buttons:
+		for i = 1, 5, 1 do
+			formspec = formspec ..
+				"image_button[0.0," .. 0.2 + i * 0.7 .. ";.8,.8;" ..
+				(i == waypoints.selected and "ui_blue_icon_background.png^" or "") ..
+				"ui_" .. i .. "_icon.png;" ..
+				"select_waypoint" .. i .. ";]" ..
+				"tooltip[select_waypoint" .. i .. ";"
+					.. S("Select Waypoint #@1", i).."]"
+		end
+
+		local i = waypoints.selected or 1
+		local waypoint = waypoints[i] or {}
+		local temp = waypoints_temp[player_name][i] or {}
+		local default_name = S("Waypoint @1", i)
+
+		-- Main buttons:
+		formspec = formspec ..
+			"image_button[4.5,3.7;.8,.8;"..
+			"ui_waypoint_set_icon.png;"..
+			"set_waypoint"..i..";]"..
+			"tooltip[set_waypoint" .. i .. ";"
+				.. F(S("Set waypoint to current location")).."]"
+
+		formspec = formspec ..
+			"image_button[5.2,3.7;.8,.8;"..
+			(waypoint.active and "ui_on_icon.png" or "ui_off_icon.png")..";"..
+			"toggle_waypoint"..i..";]"..
+			"tooltip[toggle_waypoint" .. i .. ";"
+				.. F(S("Make waypoint @1",
+					waypoint.active and S("invisible") or S("visible"))).."]"
+
+		formspec = formspec ..
+			"image_button[5.9,3.7;.8,.8;"..
+			(waypoint.display_pos and "ui_green_icon_background.png" or "ui_red_icon_background.png").."^ui_xyz_icon.png;"..
+			"toggle_display_pos" .. i .. ";]"..
+			"tooltip[toggle_display_pos" .. i .. ";"
+				.. F(S("@1 display of waypoint coordinates",
+					waypoint.display_pos and S("Disable") or S("Enable"))) .."]"
+
+		formspec = formspec ..
+			"image_button[6.6,3.7;.8,.8;"..
+			"ui_circular_arrows_icon.png;"..
+			"toggle_color"..i..";]"..
+			"tooltip[toggle_color" .. i .. ";"
+				.. F(S("Change color of waypoint display")).."]"
+
+		formspec = formspec ..
+			"image_button[7.3,3.7;.8,.8;"..
+			"ui_pencil_icon.png;"..
+			"rename_waypoint"..i..";]"..
+			"tooltip[rename_waypoint" .. i .. ";"
+				.. F(S("Edit waypoint name")).."]"
+
+		-- Waypoint's info:
+		if waypoint.active then
+			formspec = formspec .. 	"label[1,0.8;"..F(S("Waypoint active")).."]"
+		else
+			formspec = formspec .. 	"label[1,0.8;"..F(S("Waypoint inactive")).."]"
+		end
+
+		if temp.edit then
+			formspec = formspec ..
+				"field[1.3,3.2;6,.8;rename_box" .. i .. ";;"
+				..(waypoint.name or default_name).."]" ..
+				"image_button[7.3,2.9;.8,.8;"..
+				"ui_ok_icon.png;"..
+				"confirm_rename"..i.. ";]"..
+				"tooltip[confirm_rename" .. i .. ";"
+					.. F(S("Finish editing")).."]"
+		end
+
+		formspec = formspec .. "label[1,1.3;"..F(S("World position"))..": " ..
+			minetest.pos_to_string(waypoint.world_pos or vector.new()) .. "]" ..
+			"label[1,1.8;"..F(S("Name"))..": ".. (waypoint.name or default_name) .. "]" ..
+			"label[1,2.3;"..F(S("HUD text color"))..": " ..
+			hud_colors[waypoint.color or 1][3] .. "]"
+
+		return {formspec=formspec}
+	end,
+})
+
+unified_inventory.register_button("waypoints", {
+	type = "image",
+	image = "ui_waypoints_icon.png",
+	tooltip = S("Waypoints"),
+	hide_lite=true
+})
+
+local function update_hud(player, waypoints, temp, i)
+	local waypoint = waypoints[i]
+	if not waypoint then return end
+	temp[i] = temp[i] or {}
+	temp = temp[i]
+	local pos = waypoint.world_pos or vector.new()
+	local name
+	if waypoint.display_pos then
+		name = minetest.pos_to_string(pos)
+		if waypoint.name then
+			name = name..", "..waypoint.name
+		end
+	else
+		name = waypoint.name or "Waypoint "..i
+	end
+	if temp.hud then
+		player:hud_remove(temp.hud)
+	end
+	if waypoint.active then
+		temp.hud = player:hud_add({
+			hud_elem_type = "waypoint",
+			number = hud_colors[waypoint.color or 1][2] ,
+			name = name,
+			text = "m",
+			world_pos = pos
+		})
+	else
+		temp.hud = nil
+	end
+end
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+	if formname ~= "" then return end
+
+	local player_name = player:get_player_name()
+	local update_formspec = false
+	local need_update_hud = false
+	local hit = false
+
+	local waypoints = datastorage.get(player_name, "waypoints")
+	local temp = waypoints_temp[player_name]
+	for i = 1, 5, 1 do
+		if fields["select_waypoint"..i] then
+			hit = true
+			waypoints.selected = i
+			update_formspec = true
+		end
+
+		if fields["toggle_waypoint"..i] then
+			hit = true
+			waypoints[i] = waypoints[i] or {}
+			waypoints[i].active = not (waypoints[i].active)
+			need_update_hud = true
+			update_formspec = true
+		end
+
+		if fields["set_waypoint"..i] then
+			hit = true
+			local pos = player:get_pos()
+			pos.x = math.floor(pos.x)
+			pos.y = math.floor(pos.y)
+			pos.z = math.floor(pos.z)
+			waypoints[i] = waypoints[i] or {}
+			waypoints[i].world_pos = pos
+			need_update_hud = true
+			update_formspec = true
+		end
+
+		if fields["rename_waypoint"..i] then
+			hit = true
+			temp[i] = temp[i] or {}
+			temp[i].edit = true
+			update_formspec = true
+		end
+
+		if fields["toggle_display_pos"..i] then
+			hit = true
+			waypoints[i] = waypoints[i] or {}
+			waypoints[i].display_pos = not waypoints[i].display_pos
+			need_update_hud = true
+			update_formspec = true
+		end
+
+		if fields["toggle_color"..i] then
+			hit = true
+			waypoints[i] = waypoints[i] or {}
+			local color = waypoints[i].color or 1
+			color = color + 1
+			if color > hud_colors_max then
+				color = 1
+			end
+			waypoints[i].color = color
+			need_update_hud = true
+			update_formspec = true
+		end
+
+		if fields["confirm_rename"..i] then
+			hit = true
+			waypoints[i] = waypoints[i] or {}
+			temp[i].edit = false
+			waypoints[i].name = fields["rename_box"..i]
+			need_update_hud = true
+			update_formspec = true
+		end
+		if need_update_hud then
+			update_hud(player, waypoints, temp, i)
+		end
+		if update_formspec then
+			unified_inventory.set_inventory_formspec(player, "waypoints")
+		end
+		if hit then return end
+	end
+end)
+
+
+minetest.register_on_joinplayer(function(player)
+	local player_name = player:get_player_name()
+	local waypoints = datastorage.get(player_name, "waypoints")
+	local temp = {}
+	waypoints_temp[player_name] = temp
+	for i = 1, 5 do
+		update_hud(player, waypoints, temp, i)
+	end
+end)
+
+minetest.register_on_leaveplayer(function(player)
+	waypoints_temp[player:get_player_name()] = nil
+end)
+