Add an API to unified inventory

ShadowNinja

2013-09-24 3107618c9e710b753b5ce81052b3765d92c01312

 unified_inventory/api.lua

@@ -1,656 +1,101 @@
--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 = {}
unified_inventory.crafts_table ={}
unified_inventory.crafts_table_count=0

-- 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
   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 unified_inventory.crafts_table[name]==nil then
            unified_inventory.crafts_table[name] = {}
         end
         if recipes then 
            for i=1,#recipes,1 do
               table.insert(unified_inventory.crafts_table[name],recipes[i])
            end
         end
         local recipes = minetest.get_all_craft_recipes(name)
         unified_inventory.crafts_table[name] = recipes or {}
      end
   end
   --print(dump(unified_inventory.crafts_table))
   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)
   print("Unified Inventory. inventory size: "..#unified_inventory.items_list)
end)

-- register_on_joinplayer
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.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, "")
   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)
         if minetest.setting_getbool("creative_mode") 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,
   })
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()))
      minetest.sound_play("electricity", {to_player=player_name, gain = 1.0})
   end,
})
unified_inventory.refill:set_size("main", 1)

-- 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)
      local player_name=player:get_player_name()
      minetest.sound_play("trash", {to_player=player_name, gain = 1.0})
   end,
})
unified_inventory.trash:set_size("main", 1)
end)

-- set_inventory_formspec
unified_inventory.set_inventory_formspec = function(player,formspec)
   if player then
      player:set_inventory_formspec(formspec)
   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;]"

   -- backgrounds
      formspec = formspec .. "background[-0.19,-0.2;14.38,10.55;ui_form_bg.png]"
   if page=="craft" then
      formspec = formspec .. "background[0.06,0.99;7.92,7.52;ui_crafting_form.png]"
      end
   if page=="craftguide" then
      formspec = formspec .. "background[0.06,0.99;7.92,7.52;ui_craftguide_form.png]"
      end
   if page=="misc" then
      formspec = formspec .. "background[0.06,0.99;7.92,7.52;ui_misc_form.png]"
      end
   if page=="bags" then
      formspec = formspec .. "background[0.06,0.99;7.92,7.52;ui_bags_main_form.png]"
      end

   for i=1,4 do
      if page=="bag"..i then
         local slots = player:get_inventory():get_stack(page, 1):get_definition().groups.bagslots
         if slots == 8 then
            formspec = formspec .. "background[0.06,0.99;7.92,7.52;ui_bags_sm_form.png]"
         elseif slots == 16 then
            formspec = formspec .. "background[0.06,0.99;7.92,7.52;ui_bags_med_form.png]"
         elseif slots == 24 then
            formspec = formspec .. "background[0.06,0.99;7.92,7.52;ui_bags_lg_form.png]"
         end
      end
   end

   -- main buttons
      local start_x=0
      formspec = formspec .. "image_button["..(start_x+.65*0)..",9;.8,.8;ui_craft_icon.png;craft;]"
      formspec = formspec .. "image_button["..(start_x+.65*1)..",9;.8,.8;ui_craftguide_icon.png;craftguide;]"
      formspec = formspec .. "image_button["..(start_x+.65*2)..",9;.8,.8;ui_bags_icon.png;bags;]"
      formspec = formspec .. "image_button["..(start_x+.65*3)..",9;.8,.8;ui_sethome_icon.png;home_gui_set;]"
      formspec = formspec .. "image_button["..(start_x+.65*4)..",9;.8,.8;ui_gohome_icon.png;home_gui_go;]"
      if minetest.setting_getbool("creative_mode") then
      formspec = formspec .. "image_button["..(start_x+.65*5)..",9;.8,.8;ui_sun_icon.png;misc_set_day;]"
      formspec = formspec .. "image_button["..(start_x+.65*6)..",9;.8,.8;ui_moon_icon.png;misc_set_night;]"
      formspec = formspec .. "image_button["..(start_x+.65*7)..",9;.8,.8;ui_trash_icon.png;clear_inv;]"
      end
		
   --controls to flip items pages
      start_x=9.2
      formspec = formspec .. "image_button["..(start_x+.6*0)..",9;.8,.8;ui_skip_backward_icon.png;start_list;]"
      formspec = formspec .. "image_button["..(start_x+.6*1)..",9;.8,.8;ui_doubleleft_icon.png;rewind3;]"
      formspec = formspec .. "image_button["..(start_x+.6*2)..",9;.8,.8;ui_left_icon.png;rewind1;]"
      formspec = formspec .. "image_button["..(start_x+.6*3)..",9;.8,.8;ui_right_icon.png;forward1;]"
      formspec = formspec .. "image_button["..(start_x+.6*4)..",9;.8,.8;ui_doubleright_icon.png;forward3;]"
      formspec = formspec .. "image_button["..(start_x+.6*5)..",9;.8,.8;ui_skip_forward_icon.png;end_list;]"
		
   -- 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;]"

   -- 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 = unified_inventory.crafts_table[item_name]

         if crafts ~= nil and #crafts>0 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
            if craft.type == "extracting" then
            method="Extracting"
            end
            if craft.type == "compressing" then
            method="Compressing"
            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

   --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"))
      minetest.sound_play("click", {to_player=player_name, gain = 0.1})
      return
   end

   if fields.craftguide then
      unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"craftguide"))
      minetest.sound_play("click", {to_player=player_name, gain = 0.1})
      return
   end

   if fields.bags then
      unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"bags"))
      minetest.sound_play("click", {to_player=player_name, gain = 0.1})
      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))
         minetest.sound_play("click", {to_player=player_name, gain = 0.1})
         return
      end
   end

   -- Miscellaneous
   if fields.home_gui_set then
      unified_inventory.set_home(player, player:getpos())
      local home = homepos[player_name]
      if home ~= nil then
         minetest.sound_play("dingdong", {to_player=player_name, gain = 1.0})
         minetest.chat_send_player(player_name, "Home position set to: "..math.floor(home.x)..","..math.floor(home.y)..","..math.floor(home.z))
      end
   end
   if fields.home_gui_go then
      unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,"craft"))
      minetest.sound_play("teleport", {to_player=player_name, gain = 1.0})
      unified_inventory.go_home(player)
   end
   if fields.misc_set_day then
      if minetest.get_player_privs(player_name).settime==true then 
      minetest.sound_play("birds", {to_player=player_name, gain = 1.0})
      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.sound_play("owl", {to_player=player_name, gain = 1.0})
      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

   if fields.clear_inv then
      local inventory = {}
      player:get_inventory():set_list("main", inventory)
      minetest.chat_send_player(player_name, 'Inventory Cleared!')
      minetest.sound_play("trash_all", {to_player=player_name, gain = 1.0})
   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
      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
      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 
         minetest.sound_play("click", {to_player=player_name, gain = 0.1})
         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, fields.searchbox)
      unified_inventory.set_inventory_formspec(player, unified_inventory.get_formspec(player,unified_inventory.current_page[player_name]))
      minetest.sound_play("paperflip2", {to_player=player_name, gain = 1.0})
   end	
	
   -- alternate button
   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.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
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
      unified_inventory.home_pos = {}
   end
end
load_home() -- run it now
load_home()

-- set_home
unified_inventory.set_home = function(player, pos)
   local player_name=player:get_player_name()
   homepos[player_name] = pos
function unified_inventory.set_home(player, pos)
   local player_name = player:get_player_name()
   unified_inventory.home_pos[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
   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")
         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
function unified_inventory.go_home(player)
   local pos = unified_inventory.home_pos[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,filter)
   local player_name = player:get_player_name() 
   local size=0
   local str_temp1=string.lower(filter)
   if str_temp1 ~= "" then 
      for i=1,str_temp1:len(),1 do
         if string.byte(str_temp1,i) == 91 then 
            str_temp1=""
            end
         end
   end
   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)
   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("output", 1, nil)
   alternate = tonumber(alternate) or 1
   local crafts = unified_inventory.crafts_table[stack_name]
   print(dump(crafts))
   local next=next
   if next(crafts) == nil then return end -- no craft recipes
   if alternate < 1 or alternate > #crafts then
      alternate = 1
   end
   local craft = crafts[alternate]
   inv:set_stack("output", 1, craft.output)
   local items=craft.items

   -- cooking, fuel, grinding, and extracting recipes
   if craft.type == "cooking" or
      craft.type == "fuel" or
      craft.type == "grinding" or
      craft.type == "extracting" or
      craft.type == "compressing" then
      def=unified_inventory.find_item_def(craft["items"][1])
      if def then
         inv:set_stack("build", 1, def)
      end
      return 
   end
   if craft.width==0 then
   local build_table={1,2,3}
   for i=1,3,1 do
      if craft.items[i] then
         def=unified_inventory.find_item_def(craft.items[i])
         if def then inv:set_stack("build", build_table[i], def) end
      end
   end
   end
   if craft.width==1 then
   local build_table={1,4,7}
   for i=1,3,1 do
      if craft.items[i] then
         def=unified_inventory.find_item_def(craft.items[i])
         if def then inv:set_stack("build", build_table[i], def) end
      end
   end
   end
   if craft.width==2 then
   local build_table={1,2,4,5,7,8}
   for i=1,6,1 do
      if craft.items[i] then
         def=unified_inventory.find_item_def(craft.items[i])
         if def then inv:set_stack("build", build_table[i], def) end
      end
   end
   end
   if craft.width==3 then
      for i=1,9,1 do
         if craft.items[i] then
            def=unified_inventory.find_item_def(craft.items[i])
            if def then inv:set_stack("build", i, def) end
         end
      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, '\"', "")
      local items=unified_inventory.items_in_group(def1)
      return items[1]
   else
      return def1
   end
end
return nil
end

unified_inventory.items_in_group = function(group)
   local items = {}
   for name, item in pairs(minetest.registered_items) do
      for _, g in ipairs(group:split(',')) do
         if item.groups[g] then
            table.insert(items,name)
         end
      end
   end
   return items
end

-- register_craft
unified_inventory.register_craft = function(options)
   if  options.output == nil then
function unified_inventory.register_craft(options)
   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()] = {}
   unified_inventory.crafts_table[itemstack:get_name()] =
         unified_inventory.crafts_table[itemstack:get_name()] or {}

   table.insert(unified_inventory.crafts_table[itemstack:get_name()], options)
end

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)
         unified_inventory.set_inventory_formspec(player, name)
      end
   end
   table.insert(unified_inventory.crafts_table[itemstack:get_name()],options)
   --crafts_table_count=crafts_table_count+1
	
   def.name = name
	
   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
end