Merged Unified Inventory into Technic modpack

RealBadAngel

2013-02-02 a4a3c2b69a55ed2ca9717db7d6ae2dd9435fdcc8

Merged Unified Inventory into Technic modpack

 aaa_recipeshook/depends.txt

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 aaa_recipeshook/init.lua

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crafts_table ={}
crafts_table_count=0
UI_recipes_hook=true

-- override minetest.register_craft
local minetest_register_craft = minetest.register_craft
minetest.register_craft = function (options) 
    register_craft(options)
    if options.type=="alloy" or options.type=="grinding" then return end
    minetest_register_craft(options) 
end

-- register_craft
register_craft = function(options)
    if  options.output == nil then
        return
    end
    local itemstack = ItemStack(options.output)
    if itemstack:is_empty() then
        return
    end
    if crafts_table[itemstack:get_name()]==nil then
        crafts_table[itemstack:get_name()] = {}
    end
    table.insert(crafts_table[itemstack:get_name()],options)
    crafts_table_count=crafts_table_count+1
end



 unified_inventory/api.lua

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--data tables definitions
unified_inventory = {}
unified_inventory.players = {}
unified_inventory.current_page = {}
unified_inventory.current_index = {}
unified_inventory.items_list_size = 0
unified_inventory.items_list = {}
unified_inventory.filtered_items_list_size = {}
unified_inventory.filtered_items_list = {}
unified_inventory.activefilter = {}
unified_inventory.alternate = {}
unified_inventory.current_item = {}

-- default inventory page
unified_inventory.default = "craft"

-- homepos stuff
local home_gui = {}
local homepos = {}
unified_inventory.home_filename = minetest.get_worldpath()..'/unified_inventory_home'

-- Create detached creative inventory after loading all mods
minetest.after(0.01, function()
    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)
        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)
end)

-- register_on_joinplayer
minetest.register_on_joinplayer(function(player)
    local player_name = player:get_player_name()
    table.insert(unified_inventory.players, player_name)
    unified_inventory.current_index[player_name] = 1
    unified_inventory.filtered_items_list[player_name] = {}
    unified_inventory.filtered_items_list[player_name] = unified_inventory.items_list
    unified_inventory.filtered_items_list_size[player_name]=unified_inventory.items_list_size
    unified_inventory.activefilter[player_name]=""
    unified_inventory.apply_filter(player_name, "")
    unified_inventory.alternate[player_name] = 1
    unified_inventory.current_item[player_name] =nil
    unified_inventory.set_inventory_formspec(player,unified_inventory.get_formspec(player, unified_inventory.default))

--crafting guide inventories	
local inv = minetest.create_detached_inventory(player:get_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)
    inv:set_size("build", 3*3)

-- refill slot
unified_inventory.refill = minetest.create_detached_inventory(player_name.."refill", {
    allow_put = function(inv, listname, index, stack, player)
        if minetest.setting_getbool("creative_mode") then
            return stack:get_count()
        else
            return 0
        end
    end,
    on_put = function(inv, listname, index, stack, player)
        inv:set_stack(listname, index, ItemStack(stack:get_name().." "..stack:get_stack_max()))
    end,
})
unified_inventory.refill:set_size("main", 1)
end)

-- trash slot
unified_inventory.trash = minetest.create_detached_inventory("trash", {
    allow_put = function(inv, listname, index, stack, player)
        if minetest.setting_getbool("creative_mode") then
            return stack:get_count()
        else
            return 0
        end
    end,
    on_put = function(inv, listname, index, stack, player)
        inv:set_stack(listname, index, nil)
    end,
})
unified_inventory.trash:set_size("main", 1)

-- set_inventory_formspec
unified_inventory.set_inventory_formspec = function(player,formspec)
    if player then
        if minetest.setting_getbool("creative_mode") then
            -- if creative mode is on then wait a bit
            minetest.after(0.01,function()
            player:set_inventory_formspec(formspec)
            end)
        else
        player:set_inventory_formspec(formspec)
        end
    end
end

-- get_formspec
unified_inventory.get_formspec = function(player,page)
    if player==nil then    return "" end
    local player_name = player:get_player_name()
    unified_inventory.current_page[player_name]=page
	
    local formspec = "size[14,10]"
	
    -- player inventory
    formspec = formspec .. "list[current_player;main;0,4.5;8,4;]"
    formspec = formspec.."item_image[0,0;2,2;default:dirt]"
    -- main buttons
        formspec = formspec .. "button[0,9;1.8,.5;craft;Craft]"
        formspec = formspec .. "button[1.6,9;1.8,.5;craftguide;Craft Guide]"
        formspec = formspec .. "button[3.2,9;1.8,.5;bags;Bags]"
        formspec = formspec .. "button[4.8,9;1.8,.5;misc;Misc.]"
		
    --controls to flip items pages
        local start_x=9.2
        formspec = formspec .. "button["..(start_x+.6*0)..",9;.8,.5;start_list;|<]"
        formspec = formspec .. "button["..(start_x+.6*1)..",9;.8,.5;rewind3;<<]"
        formspec = formspec .. "button["..(start_x+.6*2)..",9;.8,.5;rewind1;<]"
        formspec = formspec .. "button["..(start_x+.6*3)..",9;.8,.5;forward1;>]"
        formspec = formspec .. "button["..(start_x+.6*4)..",9;.8,.5;forward3;>>]"
        formspec = formspec .. "button["..(start_x+.6*5)..",9;.8,.5;end_list;>|]"
	
    -- search box	
        formspec = formspec .. "field[9.195,8.325;3,1;searchbox;;]"
          formspec = formspec .. "button[12,8;1.2,1;searchbutton;Search]"
	  	
    -- craft page
    if page=="craft" then
        formspec = formspec.."label[0,0;Crafting]"
        formspec = formspec.."list[current_player;craftpreview;6,1;1,1;]"
        formspec = formspec.."list[current_player;craft;2,1;3,3;]"
            if minetest.setting_getbool("creative_mode") then
                formspec = formspec.."label[0,2.5;Refill:]"
                formspec = formspec.."list[detached:"..player_name.."refill;main;0,3;1,1;]"
                formspec = formspec.."label[7,2.5;Trash:]"
                formspec = formspec.."list[detached:trash;main;7,3;1,1;]"
            end
        end
		
    -- craft guide page
    if page=="craftguide" then
        formspec = formspec.."label[0,0;Crafting Guide]"
        formspec = formspec.."list[detached:"..player_name.."craftrecipe;build;2,1;3,3;]"
        formspec = formspec.."list[detached:"..player_name.."craftrecipe;output;6,1;1,1;]"
        formspec = formspec.."label[2,0.5;Input:]"
        formspec = formspec.."label[6,0.5;Output:]"
        formspec = formspec.."label[6,2.6;Method:]"
        local item_name=unified_inventory.current_item[player_name]
        if item_name then
            formspec = formspec.."label[2,0;"..item_name.."]"	
            local alternates = 0
            local alternate = unified_inventory.alternate[player_name]
            local crafts = crafts_table[item_name]
			
            if crafts ~= nil then
                alternates = #crafts
                local craft = crafts[alternate]
                local method = "Crafting"
                if craft.type == "shapeless" then
                method="Crafting"
                end	
                if craft.type == "cooking" then
                method="Cooking"
                end	
                if craft.type == "fuel" then
                method="Fuel"
                end	
                if craft.type == "grinding" then
                method="Grinding"
                end	
                if craft.type == "alloy" then
                method="Alloy cooking"
                end	
                formspec = formspec.."label[6,3;"..method.."]"
            end
			
            if alternates > 1 then
            formspec = formspec.."label[0,2.6;Recipe "..tostring(alternate).." of "..tostring(alternates).."]"
            formspec = formspec.."button[0,3.15;2,1;alternate;Alternate]"
            end
        end
    end
		
    -- bags
    if page=="bags" then
    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.."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;]"
        end
	
    for i=1,4 do
        if page=="bag"..i then
            local image = player:get_inventory():get_stack("bag"..i, 1):get_definition().inventory_image
            formspec=formspec.."image[7,0;1,1;"..image.."]"
            formspec=formspec.."list[current_player;bag"..i.."contents;0,1;8,3;]"
        end
    end
	
    -- Miscellaneous
    if page=="misc" then
        formspec = formspec.."label[0,0;Miscellaneous]"
        formspec=formspec.."button[0,1;2,0.5;home_gui_set;Set Home]"
        formspec=formspec.."button_exit[2,1;2,0.5;home_gui_go;Go Home]"
        local home = homepos[player_name]
        if home ~= nil then
        formspec = formspec
            formspec=formspec.."label[4,.9;Home set to:]"
            formspec=formspec.."label[5.7,.9;("..math.floor(home.x)..","..math.floor(home.y)..","..math.floor(home.z)..")]"
        end	
        if minetest.setting_getbool("creative_mode") then
            formspec=formspec.."button[0,2;2,0.5;misc_set_day;Set Day]"
            formspec=formspec.."button[2,2;2,0.5;misc_set_night;Set Night]"
        end
    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_size[player_name]-1) / (80) + 1)
    local image
    local item={}
    for y=0,9,1 do
    for x=0,7,1 do
        name=unified_inventory.filtered_items_list[player_name][list_index]	
        if minetest.registered_items[name] then
        formspec=formspec.."item_image_button["..(8.2+x*.7)..","..(1+y*.7)..";.81,.81;"..name..";item_button"..list_index..";]"
        list_index=list_index+1
        end
    end
    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
end

-- register_on_player_receive_fields
minetest.register_on_player_receive_fields(function(player, formname, fields)
    local player_name = player:get_player_name()
	
    -- main buttons
    if fields.craft then
        unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"craft"))
        return
    end
	
    if fields.craftguide then
        unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"craftguide"))
        return
    end
	
    if fields.bags then
        unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"bags"))
        return
    end
	
    if fields.misc then
        unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"misc"))
        return
    end
	
    -- bags
    for i=1,4 do
        local page = "bag"..i
        if fields[page] then
            if player:get_inventory():get_stack(page, 1):get_definition().groups.bagslots==nil then
                page = "bags"
            end
            unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,page))
            return
        end
    end
	
    -- Miscellaneous
    if fields.home_gui_set then
        unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"misc"))
        unified_inventory.set_home(player, player:getpos())
    end
    if fields.home_gui_go then
        unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"craft"))
        unified_inventory.go_home(player)
    end
    if fields.misc_set_day then
        if minetest.get_player_privs(player_name).settime==true then 
        minetest.env:set_timeofday((6000 % 24000) / 24000)
        minetest.chat_send_player(player_name, "Time of day set to 6am")
        else
        minetest.chat_send_player(player_name, "You don't have settime priviledge!")
        end
    end
    if fields.misc_set_night then
        if minetest.get_player_privs(player_name).settime==true then 	
        minetest.env:set_timeofday((21000 % 24000) / 24000)
        minetest.chat_send_player(player_name, "Time of day set to 9pm")
        else
        minetest.chat_send_player(player_name, "You don't have settime priviledge!")	
        end	
    end
	
    -- Inventory page controls
    local start=math.floor(unified_inventory.current_index[player_name]/80 +1 )
    local start_i=start
    local pagemax = math.floor((unified_inventory.filtered_items_list_size[player_name]-1) / (80) + 1)
	
    if fields.start_list then
        start_i = 1
    end
    if fields.rewind1 then
        start_i = start_i - 1
    end
    if fields.forward1 then
        start_i = start_i + 1
    end
    if fields.rewind3 then
        start_i = start_i - 3
    end
    if fields.forward3 then
        start_i = start_i + 3
    end
    if fields.end_list then
        start_i = pagemax
    end
    if start_i < 1 then
        start_i = 1
    end
    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
        unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,unified_inventory.current_page[player_name]))
        end
	
    -- Item list buttons
    local list_index=unified_inventory.current_index[player_name]
    local page=unified_inventory.current_page[player_name]
    for i=0,80,1 do
        local button="item_button"..list_index
        if fields[button] then 
            if minetest.setting_getbool("creative_mode")==false then
                unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"craftguide"))
                page="craftguide"
                end			
            if page=="craftguide" then 
                unified_inventory.current_item[player_name] = unified_inventory.filtered_items_list[player_name][list_index] 
                unified_inventory.alternate[player_name] = 1
                unified_inventory.update_recipe (player, unified_inventory.filtered_items_list[player_name][list_index], 1)
                unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,unified_inventory.current_page[player_name]))
            else
                if minetest.setting_getbool("creative_mode") then
                    local inv = player:get_inventory()
                    dst_stack={}
                    dst_stack["name"] = unified_inventory.filtered_items_list[player_name][list_index] 
                    dst_stack["count"]=99
                    if inv:room_for_item("main",dst_stack) then
                    inv:add_item("main",dst_stack)
                    end
                end	
            end	
        end	
    list_index=list_index+1
    end
	
    if fields.searchbutton then
        unified_inventory.apply_filter(player_name, fields.searchbox)
        unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,unified_inventory.current_page[player_name]))
    end	
	
    -- alternate button
    if fields.alternate then
        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 = 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.update_recipe (player, unified_inventory.current_item[player_name], alternate)
            unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,unified_inventory.current_page[player_name]))
            end
        end	
    end		
end)

-- load_home
local load_home = function()
    local input = io.open(unified_inventory.home_filename..".home", "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")
            homepos[name:sub(2)] = {x = x, y = y, z = z}
        end
        io.close(input)
    else
        homepos = {}
    end
end
load_home() -- run it now

-- set_home
unified_inventory.set_home = function(player, pos)
    homepos[player:get_player_name()] = pos
    -- save the home data from the table to the file
    local output = io.open(unified_inventory.home_filename..".home", "w")
    for k, v in pairs(homepos) do
        if v ~= nil then
            output:write(math.floor(v.x).." "..math.floor(v.y).." "..math.floor(v.z).." "..k.."\n")
        end
    end
    io.close(output)
end

-- go_home 
unified_inventory.go_home = function(player)
    local pos = homepos[player:get_player_name()]
    if pos~=nil then
        player:setpos(pos)
    end
end

--apply filter to the inventory list (create filtered copy of full one)
unified_inventory.apply_filter = function(player_name,filter)
    local size=0
    local str_temp1=string.lower(filter)
    local str_temp2
    local str_temp3
    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 ~= "" then
            str_temp2=string.lower(def.name)
            str_temp3=string.lower(def.description)
            if string.find(str_temp2, str_temp1) or string.find(str_temp3, str_temp1) then
                table.insert(unified_inventory.filtered_items_list[player_name], name)
                size=size+1
            end
        end
	
    end
    table.sort(unified_inventory.filtered_items_list[player_name])
    unified_inventory.filtered_items_list_size[player_name]=size
    unified_inventory.current_index[player_name]=1	
    unified_inventory.activefilter[player_name]=filter
    unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,unified_inventory.current_page[player_name]))
end


-- update_recipe
unified_inventory.update_recipe = function(player, stack_name, alternate)
    --print("Lookup:"..stack_name)
    local inv = minetest.get_inventory({type="detached", name=player:get_player_name().."craftrecipe"})	
    for i=0,inv:get_size("build"),1 do
        inv:set_stack("build", i, nil)
    end
    inv:set_stack("cook", 1, nil)
    inv:set_stack("fuel", 1, nil)

    inv:set_stack("output", 1, stack_name)
    local def
    alternate = tonumber(alternate) or 1
    local crafts = crafts_table[stack_name]
    if crafts == nil then
        --minetest.chat_send_player(player:get_player_name(), "no recipe available for "..stack_name)
        return
    end
    if alternate < 1 or alternate > #crafts then
        alternate = 1
    end
    local craft = crafts[alternate]
    --print (dump(craft))
    --minetest.chat_send_player(player:get_player_name(), "recipe for "..stack_name..": "..dump(craft))
	
    local itemstack = ItemStack(craft.output)
    inv:set_stack("output", 1, itemstack)

    -- cook, fuel, grinding recipes
    if craft.type == "cooking" or craft.type == "fuel" or craft.type == "grinding" then
        def=unified_inventory.find_item_def(craft.recipe)
        if def then
            inv:set_stack("build", 1, def)
        end
        return 
    end
	
    -- build (shaped or shapeless)
    if craft.recipe[1] then
        def=unified_inventory.find_item_def(craft.recipe[1])
        if def then
            inv:set_stack("build", 1, def)
        else
            def=unified_inventory.find_item_def(craft.recipe[1][1])
            if def then
                inv:set_stack("build", 1, def)
            end
            def=unified_inventory.find_item_def(craft.recipe[1][2])
            if def then
                inv:set_stack("build", 2, def)
            end
            def=unified_inventory.find_item_def(craft.recipe[1][3])
            if def then
                inv:set_stack("build", 3, def)
            end
        end
    end
    if craft.recipe[2] then
        def=unified_inventory.find_item_def(craft.recipe[2])
        if def then
            inv:set_stack("build", 2, def)
        else
            def=unified_inventory.find_item_def(craft.recipe[2][1])
            if def then
                inv:set_stack("build", 4, def)
            end
            def=unified_inventory.find_item_def(craft.recipe[2][2])
            if def then
                inv:set_stack("build", 5, def)
            end
            def=unified_inventory.find_item_def(craft.recipe[2][3])
            if def then
                inv:set_stack("build", 6, def)
            end
        end
    end
	
    if craft.recipe[3] then
        def=unified_inventory.find_item_def(craft.recipe[3])
        if def then
            inv:set_stack("build", 3, def)
        else
            def=unified_inventory.find_item_def(craft.recipe[3][1])
            if def then
                inv:set_stack("build", 7, def)
            end
            def=unified_inventory.find_item_def(craft.recipe[3][2])
            if def then
                inv:set_stack("build", 8, def)
            end
            def=unified_inventory.find_item_def(craft.recipe[3][3])
            if def then
                inv:set_stack("build", 9, def)
            end
        end
    end
    if craft.recipe[4] then
        def=unified_inventory.find_item_def(craft.recipe[4])
        if def then
            inv:set_stack("build", 4, def)
        end
    end
    if craft.recipe[5] then
        def=unified_inventory.find_item_def(craft.recipe[5])
        if def then
            inv:set_stack("build", 5, def)
        end
    end
    if craft.recipe[6] then
        def=unified_inventory.find_item_def(craft.recipe[6])
        if def then
            inv:set_stack("build", 6, def)
        end
    end
    if craft.recipe[7] then
        def=unified_inventory.find_item_def(craft.recipe[7])
        if def then
            inv:set_stack("build", 7, def)
        end
    end
    if craft.recipe[8] then
        def=unified_inventory.find_item_def(craft.recipe[8])
        if def then
            inv:set_stack("build", 8, def)
        end
    end
    if craft.recipe[9] then
        def=unified_inventory.find_item_def(craft.recipe[9])
        if def then
            inv:set_stack("build", 9, def)
        end
    end
end

unified_inventory.find_item_def = function(def1)
if type(def1)=="string" then
    if string.find(def1, "group:") then
        def1=string.gsub(def1, "group:", "")
        def1=string.gsub(def1, '\"', "")
        for name,def in pairs(minetest.registered_items) do
                if def.groups[def1] == 1 and def.groups.not_in_creative_inventory ~= 1 then
                    return def
                end
        end
    else
    return def1
    end
end
return nil
end

 unified_inventory/bags.lua

New file
@@ -0,0 +1,89 @@
--[[

Bags for Minetest

Copyright (c) 2012 cornernote, Brett O'Donnell <cornernote@gmail.com>
Source Code: https://github.com/cornernote/minetest-particles
License: GPLv3

]]--

-- register_on_joinplayer
minetest.register_on_joinplayer(function(player)
    local player_inv = player:get_inventory()
    local bags_inv = minetest.create_detached_inventory(player:get_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", stack:get_definition().groups.bagslots)
        end,
        on_take = function(inv, listname, index, stack, player)
            player:get_inventory():set_stack(listname, index, nil)
        end,
        allow_put = function(inv, listname, index, stack, player)
            if stack:get_definition().groups.bagslots then
                return 1
            else
                return 0
            end
        end,
        allow_take = function(inv, listname, index, stack, player)
            if player:get_inventory():is_empty(listname.."contents")==true then
                return stack:get_count()
            else
                return 0
            end
        end,
        allow_move = function(inv, from_list, from_index, to_list, to_index, count, player)
            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
end)

-- register bag tools
minetest.register_tool("unified_inventory:bag_small", {
    description = "Small Bag",
    inventory_image = "bags_small.png",
    groups = {bagslots=8},
})
minetest.register_tool("unified_inventory:bag_medium", {
    description = "Medium Bag",
    inventory_image = "bags_medium.png",
    groups = {bagslots=16},
})
minetest.register_tool("unified_inventory:bag_large", {
    description = "Large Bag",
    inventory_image = "bags_large.png",
    groups = {bagslots=24},
})

-- register bag crafts
minetest.register_craft({
    output = "unified_inventory:bag_small",
    recipe = {
        {"", "default:stick", ""},
        {"default:wood", "default:wood", "default:wood"},
        {"default:wood", "default:wood", "default:wood"},
    },
})
minetest.register_craft({
    output = "unified_inventory:bag_medium",
    recipe = {
        {"", "default:stick", ""},
        {"unified_inventory:bag_small", "unified_inventory:bag_small", "unified_inventory:bag_small"},
        {"unified_inventory:bag_small", "unified_inventory:bag_small", "unified_inventory:bag_small"},
    },
})
minetest.register_craft({
    output = "unified_inventory:bag_large",
    recipe = {
        {"", "default:stick", ""},
        {"unified_inventory:bag_medium", "unified_inventory:bag_medium", "unified_inventory:bag_medium"},
        {"unified_inventory:bag_medium", "unified_inventory:bag_medium", "unified_inventory:bag_medium"},
    },
})

 unified_inventory/depends.txt

New file
@@ -0,0 +1 @@
aaa_recipeshook

 unified_inventory/init.lua

New file
@@ -0,0 +1,4 @@
-- load api
dofile(minetest.get_modpath("unified_inventory").."/api.lua")

dofile(minetest.get_modpath("unified_inventory").."/bags.lua")