disallow repairing tools using the 'to craft grid', allow it to put items of specific groups and (maybe) make it keep the meta of items, remove unused elseif, change a bit translation and use table.concat at one place because I read somewhere that it's faster than ..

5 files changed, 226 insertions, 143 deletions

diff --git a/api.lua b/api.lua
index 5c87af4..59296db 100644
--- a/api.lua
+++ b/api.lua
@@ -117,7 +117,7 @@ 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)
@@ -127,7 +127,7 @@ function unified_inventory.register_craft(options)
 	if options.type == "normal" and options.width == 0 then
 		options = { type = "shapeless", items = options.items, output = options.output, width = 0 }
 	end
-	if unified_inventory.crafts_for.recipe[itemstack:get_name()] == nil then
+	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)
@@ -220,9 +220,7 @@ 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.setting_getbool("creative_mode")
 end
 
diff --git a/callbacks.lua b/callbacks.lua
index 3a41c32..c0f9d04 100644
--- a/callbacks.lua
+++ b/callbacks.lua
@@ -1,7 +1,9 @@
 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
+	if itemdef
+	and (itemdef.wear_represents or "mechanical_wear") == "mechanical_wear"
+	and stack:get_wear() ~= 0 then
 		stack:set_wear(0)
 	end
 	return stack
@@ -52,7 +54,8 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	local player_name = player:get_player_name()
 
 	-- always take new search text, even if not searching on it yet
-	if fields.searchbox ~= nil and fields.searchbox ~= unified_inventory.current_searchbox[player_name] then
+	if fields.searchbox
+	and fields.searchbox ~= unified_inventory.current_searchbox[player_name] then
 		unified_inventory.current_searchbox[player_name] = fields.searchbox
 		unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 	end
@@ -98,7 +101,7 @@ 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
+	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) * unified_inventory.items_per_page + 1
@@ -106,7 +109,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 				unified_inventory.current_page[player_name])
 	end
 
-	local clicked_item = nil
+	local clicked_item
 	for name, value in pairs(fields) do
 		if string.sub(name, 1, 12) == "item_button_" then
 			local new_dir, mangled_item = string.match(name, "^item_button_([a-z]+)_(.*)$")
@@ -116,7 +119,8 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 				unified_inventory.apply_filter(player, clicked_item, new_dir)
 				return
 			end
-			if new_dir == "recipe" or new_dir == "usage" then
+			if new_dir == "recipe"
+			or new_dir == "usage" then
 				unified_inventory.current_craft_direction[player_name] = new_dir
 			end
 			break
@@ -126,22 +130,20 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 		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
+			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
@@ -156,27 +158,29 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	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_for[unified_inventory.current_craft_direction[player_name]][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
-		end
+	if not fields.alternate 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 = unified_inventory.alternate[player_name] + 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)
 
diff --git a/internal.lua b/internal.lua
index 28fbde7..a93b847 100644
--- a/internal.lua
+++ b/internal.lua
@@ -23,28 +23,30 @@ function unified_inventory.get_formspec(player, page)
 	unified_inventory.current_page[player_name] = page
 	local pagedef = unified_inventory.pages[page]
 
-	local formspec = "size[14,10]"
-	-- Background
-	formspec = formspec .. "background[-0.19,-0.25;14.4,10.75;ui_form_bg.png]"
+	local formspec = {
+		"size[14,10]",
+		"background[-0.19,-0.25;14.4,10.75;ui_form_bg.png]" -- Background
+	}
+	local n = 3
 
 	if unified_inventory.lite_mode then
-		formspec = "size[11,7.7]"
-		formspec = formspec .. "background[-0.19,-0.2;11.4,8.4;ui_form_bg.png]"
+		formspec[1] = "size[11,7.7]"
+		formspec[2] = "background[-0.19,-0.2;11.4,8.4;ui_form_bg.png]"
 	end
 
-	if unified_inventory.is_creative(player_name) and page == "craft" then
-		formspec = formspec.."background[0,"..(unified_inventory.formspec_y + 2)..";1,1;ui_single_slot.png]"
+	if unified_inventory.is_creative(player_name)
+	and page == "craft" then
+		formspec[n] = "background[0,"..(unified_inventory.formspec_y + 2)..";1,1;ui_single_slot.png]"
+		n = n+1
 	end
 
-	local fsdata = nil
-
 	-- Current page
-	if unified_inventory.pages[page] then
-		fsdata = pagedef.get_formspec(player)
-		formspec = formspec .. fsdata.formspec
-	else
+	if not unified_inventory.pages[page] then
 		return "" -- Invalid page name
 	end
+	local fsdata = pagedef.get_formspec(player)
+	formspec[n] = fsdata.formspec
+	n = n+1
 
 	local button_row = 0
 	local button_col = 0
@@ -57,34 +59,35 @@ function unified_inventory.get_formspec(player, page)
 			button_col = 1
 		end
 
-		local tooltip = def.tooltip or ""
 		if def.type == "image" then
-			formspec = formspec.."image_button["
-					..( unified_inventory.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
-					..","..(unified_inventory.main_button_y + button_row * 0.7)..";0.8,0.8;"
-					..minetest.formspec_escape(def.image)..";"
-					..minetest.formspec_escape(def.name)..";]"
-					.."tooltip["..minetest.formspec_escape(def.name)
-					..";"..tooltip.."]"
+			formspec[n] = "image_button["
+			formspec[n+1] = ( unified_inventory.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
+			formspec[n+2] = ","..(unified_inventory.main_button_y + button_row * 0.7)..";0.8,0.8;"
+			formspec[n+3] = minetest.formspec_escape(def.image)..";"
+			formspec[n+4] = minetest.formspec_escape(def.name)..";]"
+			formspec[n+5] = "tooltip["..minetest.formspec_escape(def.name)
+			formspec[n+6] = ";"..(def.tooltip or "").."]"
+			n = n+7
 		end
 	end
 
 	if fsdata.draw_inventory ~= false then
 		-- Player inventory
-		formspec = formspec.."listcolors[#00000000;#00000000]"
-		formspec = formspec .. "list[current_player;main;0,"..(unified_inventory.formspec_y + 3.5)..";8,4;]"
+		formspec[n] = "listcolors[#00000000;#00000000]"
+		formspec[n+1] = "list[current_player;main;0,"..(unified_inventory.formspec_y + 3.5)..";8,4;]"
+		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
 
 	if not unified_inventory.lite_mode then
-		formspec = formspec
-			.. "image_button[" .. (start_x + 0.6 * 0)
+		formspec[n] =
+			"image_button[" .. (start_x + 0.6 * 0)
 				.. ",9;.8,.8;ui_skip_backward_icon.png;start_list;]"
 			.. "tooltip[start_list;" .. minetest.formspec_escape(S("First page")) .. "]"
 
@@ -106,8 +109,8 @@ function unified_inventory.get_formspec(player, page)
 				.. ",9;.8,.8;ui_skip_forward_icon.png;end_list;]"
 			.. "tooltip[end_list;" .. minetest.formspec_escape(S("Last page")) .. "]"
 	else
-		formspec = formspec
-			.. "image_button[" .. (8.2 + 0.65 * 0)
+		formspec[n] =
+			"image_button[" .. (8.2 + 0.65 * 0)
 				.. ",5.8;.8,.8;ui_skip_backward_icon.png;start_list;]"
 			.. "tooltip[start_list;" .. minetest.formspec_escape(S("First page")) .. "]"
 			.. "image_button[" .. (8.2 + 0.65 * 1)
@@ -120,20 +123,22 @@ function unified_inventory.get_formspec(player, page)
 				.. ",5.8;.8,.8;ui_skip_forward_icon.png;end_list;]"
 			.. "tooltip[end_list;" .. minetest.formspec_escape(S("Last page")) .. "]"
 	end
+	n = n+1
 
 	-- Search box
 
 	if not unified_inventory.lite_mode then
-		formspec = formspec .. "field[9.5,8.325;3,1;searchbox;;"
+		formspec[n] = "field[9.5,8.325;3,1;searchbox;;"
 			.. minetest.formspec_escape(unified_inventory.current_searchbox[player_name]) .. "]"
-		formspec = formspec .. "image_button[12.2,8.1;.8,.8;ui_search_icon.png;searchbutton;]"
+		formspec[n+1] = "image_button[12.2,8.1;.8,.8;ui_search_icon.png;searchbutton;]"
 			.. "tooltip[searchbutton;" ..S("Search") .. "]"
 	else
-		formspec = formspec .. "field[8.5,5.225;2.2,1;searchbox;;"
+		formspec[n] = "field[8.5,5.225;2.2,1;searchbox;;"
 			.. minetest.formspec_escape(unified_inventory.current_searchbox[player_name]) .. "]"
-		formspec = formspec .. "image_button[10.3,5;.8,.8;ui_search_icon.png;searchbutton;]"
+		formspec[n+1] = "image_button[10.3,5;.8,.8;ui_search_icon.png;searchbutton;]"
 			.. "tooltip[searchbutton;" ..S("Search") .. "]"
 	end
+	n = n+2
 
 	local no_matches = "No matching items"
 	if unified_inventory.lite_mode then
@@ -142,7 +147,7 @@ function unified_inventory.get_formspec(player, page)
 
 	-- Items list
 	if #unified_inventory.filtered_items_list[player_name] == 0 then
-		formspec = formspec.."label[8.2,"..unified_inventory.form_header_y..";" .. S(no_matches) .. "]"
+		formspec[n] = "label[8.2,"..unified_inventory.form_header_y..";" .. S(no_matches) .. "]"
 	else
 		local dir = unified_inventory.active_search_direction[player_name]
 		local list_index = unified_inventory.current_index[player_name]
@@ -155,35 +160,39 @@ function unified_inventory.get_formspec(player, page)
 			for x = 0, unified_inventory.pagecols - 1 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)..","
-							..(unified_inventory.formspec_y + unified_inventory.page_y + y * 0.7)..";.81,.81;"
-							..name..";item_button_"..dir.."_"
-							..unified_inventory.mangle_for_formspec(name)..";]"
+					formspec[n] = "item_image_button["
+						..(8.2 + x * 0.7)..","
+						..(unified_inventory.formspec_y + unified_inventory.page_y + y * 0.7)..";.81,.81;"
+						..name..";item_button_"..dir.."_"
+						..unified_inventory.mangle_for_formspec(name)..";]"
+					n = n+1
 					list_index = list_index + 1
 				end
 			end
 		end
-		formspec = formspec.."label[8.2,"..unified_inventory.form_header_y..";"..S("Page") .. ": "
+		formspec[n] = "label[8.2,"..unified_inventory.form_header_y..";"..S("Page") .. ": "
 			.. S("%s of %s"):format(page,pagemax).."]"
 	end
+	n= n+1
+
 	if unified_inventory.activefilter[player_name] ~= "" then
-		formspec = formspec.."label[8.2,"..(unified_inventory.form_header_y + 0.4)..";" .. S("Filter") .. ":]"
-		formspec = formspec.."label[9.1,"..(unified_inventory.form_header_y + 0.4)..";"..minetest.formspec_escape(unified_inventory.activefilter[player_name]).."]"
+		formspec[n] = "label[8.2,"..(unified_inventory.form_header_y + 0.4)..";" .. S("Filter") .. ":]"
+		formspec[n+1] = "label[9.1,"..(unified_inventory.form_header_y + 0.4)..";"..minetest.formspec_escape(unified_inventory.activefilter[player_name]).."]"
 	end
-	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, search_dir)
-	if not player then return false end
+	if not player then
+		return false
+	end
 	local player_name = player:get_player_name()
 	local lfilter = string.lower(filter)
 	local ffilter
@@ -191,7 +200,8 @@ function unified_inventory.apply_filter(player, filter, search_dir)
 		local groups = lfilter:sub(7):split(",")
 		ffilter = function(name, def)
 			for _, group in ipairs(groups) do
-				if not ((def.groups[group] or 0) > 0) then
+				if not def.groups[group]
+				or def.groups[group] <= 0 then
 					return false
 				end
 			end
@@ -206,11 +216,13 @@ function unified_inventory.apply_filter(player, filter, search_dir)
 	end
 	unified_inventory.filtered_items_list[player_name]={}
 	for name, def in pairs(minetest.registered_items) do
-		if (def.groups.not_in_creative_inventory or 0) == 0
-		  and (def.description or "") ~= ""
-		  and ffilter(name, def)
-		  and (unified_inventory.is_creative(player_name)
-		       or unified_inventory.crafts_for.recipe[def.name]) then
+		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)
+		and (unified_inventory.is_creative(player_name)
+			or unified_inventory.crafts_for.recipe[def.name]) then
 			table.insert(unified_inventory.filtered_items_list[player_name], name)
 		end
 	end
diff --git a/locale/de.txt b/locale/de.txt
index 9f12d8c..d678b68 100644
--- a/locale/de.txt
+++ b/locale/de.txt
@@ -1,4 +1,4 @@
-# Translation by Xanthin
+# Translation mostly by Xanthin
 
 ### bags.lua ###
 Bags = Rucksaecke
@@ -11,23 +11,23 @@ Medium Bag = Rucksack (mittel)
 Large Bag = Rucksack (gross)
 
 ### inernal.lua ###
-First page =
-Back three pages = 
-Back one page = 
-Forward one page = 
-Forward three pages = 
-Last page = 
-No matching items = 
+First page = Erste Seite
+Back three pages = Drei Seiten zurueckblaettern
+Back one page = Eine Seiten zurueckblaettern
+Forward one page = Eine Seiten vorblaettern
+Forward three pages = Drei Seiten vorblaettern
+Last page = Letzte Seite
+No matching items = Keine passenden Gegenstände
 Page = Seite
 %s of %s = %s von %s
 Filter = Suche
-Search = 
+Search = Suchen
 
 ### register.lua ###
 Can use the creative inventory = Kann das Kreativinventar nutzen
 Home position set to: %s = Ausgangsposition nach: %s gesetzt
 Time of day set to 6am = Tageszeit auf 6 Uhr morgens geaendert
-You don't have the settime priviledge! = Du hast nicht das "settime" Privileg!
+You don't have the settime privilege! = Du hast nicht das "settime" Privileg!
 Time of day set to 9pm = Tageszeit auf 9 Uhr abends geaendert
 This button has been disabled outside of creative mode to prevent accidental inventory trashing. Use the trash slot instead. = Diese Funktion ist ausserhalb des Kreativmodus deaktiviert um ein versehentliches Loeschen des ganzen Inventars zu verhindern.\nNutze stattdessen das Muellfeld.
 Inventory Cleared! = Inventar geleert!
@@ -45,27 +45,27 @@ Copy to craft grid: = Kopiere ins Baufeld:
 All = Alles
 Recipe %s of %s = Rezept %s von %s
 Alternate = Alternative
-Crafting Grid = 
+Crafting Grid =
 
 ### waypoints.lua ###
-White = 
-Yellow = 
-Red = 
-Green = 
-Blue = 
-Waypoints = 
-Waypoint active = 
-Waypoint inactive = 
-World position = 
-Name = 
-HUD text color = 
-Edit waypoint name = 
-Rename waypoint = 
-Change color of waypoint display = 
-Set waypoint to current location = 
-Make waypoint visible = 
-Make waypoint invisible = 
-Disable display of waypoint coordinates = 
-Enable display of waypoint coordinates = 
-Finish editing = 
-Select Waypoint #%d = 
+White = Weiß
+Yellow = Gelb
+Red = Rot
+Green = Gruen
+Blue = Blau
+Waypoints = Markierungen
+Waypoint active = Markierung aktiv
+Waypoint inactive = Markierung inaktiv
+World position = Welt Position
+Name =
+HUD text color =
+Edit waypoint name = Name der Markierung aendern
+Rename waypoint = Markierung umbenennen
+Change color of waypoint display = Farbe der Darstellung der Markierung aendern
+Set waypoint to current location = Setze Markierung zur derzeitigen Position
+Make waypoint visible = Markierung sichtbar machen
+Make waypoint invisible = Markierung verstecken
+Disable display of waypoint coordinates =
+Enable display of waypoint coordinates =
+Finish editing =
+Select Waypoint #%d =
diff --git a/register.lua b/register.lua
index ff18d30..b46cea5 100644
--- a/register.lua
+++ b/register.lua
@@ -87,7 +87,7 @@ if not unified_inventory.lite_mode then
 					S("Time of day set to 6am"))
 			else
 				minetest.chat_send_player(player_name,
-					S("You don't have the settime priviledge!"))
+					S("You don't have the settime privilege!"))
 			end
 		end,
 	})
@@ -106,7 +106,7 @@ if not unified_inventory.lite_mode then
 						S("Time of day set to 9pm"))
 			else
 				minetest.chat_send_player(player_name,
-						S("You don't have the settime priviledge!"))
+						S("You don't have the settime privilege!"))
 			end
 		end,
 	})
@@ -326,6 +326,80 @@ local function craftguide_giveme(player, formname, fields)
 	player_inv:add_item("main", {name = output, count = amount})
 end
 
+-- tells if an item can be moved and returns an index if so
+local function item_fits(player_inv, craft_item, needed_item)
+	local need_group = string.sub(needed_item, 1, 6) == "group:"
+	if need_group then
+		need_group = string.sub(needed_item, 7)
+	end
+	if craft_item
+	and not craft_item:is_empty() then
+		local ciname = craft_item:get_name()
+
+		-- abort if the item there isn't usable
+		if ciname ~= needed_item
+		and not need_group then
+			return
+		end
+
+		-- abort if no item fits onto it
+		if craft_item:get_count() >= craft_item:get_definition().stack_max then
+			return
+		end
+
+		-- use the item there if it's in the right group and a group item is needed
+		if need_group then
+			if minetest.get_item_group(ciname, need_group) == 0 then
+				return
+			end
+			needed_item = ciname
+			need_group = false
+		end
+	end
+
+	if need_group then
+		-- search an item of the specific group
+		for i,item in pairs(player_inv:get_list("main")) do
+			if not item:is_empty()
+			and minetest.get_item_group(item:get_name(), need_group) > 0 then
+				return i
+			end
+		end
+
+		-- no index found
+		return
+	end
+
+	-- search an item with a the name needed_item
+	for i,item in pairs(player_inv:get_list("main")) do
+		if not item:is_empty()
+		and item:get_name() == needed_item then
+			return i
+		end
+	end
+
+	-- no index found
+end
+
+-- modifies the player inventory and returns the changed craft_item if possible
+local function move_item(player_inv, craft_item, needed_item)
+	local stackid = item_fits(player_inv, craft_item, needed_item)
+	if not stackid then
+		return
+	end
+	local wanted_stack = player_inv:get_stack("main", stackid)
+	local taken_item = wanted_stack:take_item()
+	player_inv:set_stack("main", stackid, wanted_stack)
+
+	if not craft_item
+	or craft_item:is_empty() then
+		return taken_item
+	end
+
+	craft_item:add_item(taken_item)
+	return craft_item
+end
+
 local function craftguide_craft(player, formname, fields)
 	local amount
 	for k, v in pairs(fields) do
@@ -358,11 +432,13 @@ local function craftguide_craft(player, formname, fields)
 		width = 3
 	end
 
+	amount = tonumber(amount) or 99
+	--[[
 	if amount == "max" then
 		amount = 99 -- Arbitrary; need better way to do this.
 	else
 		amount = tonumber(amount)
-	end
+	end--]]
 
 	for iter = 1, amount do
 		local index = 1
@@ -372,17 +448,9 @@ local function craftguide_craft(player, formname, fields)
 				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
+					local newitem = move_item(player_inv, craft_item, needed_item)
+					if newitem then
+						craft_list[craft_index] = newitem
 					end
 				end
 				index = index + 1
@@ -399,10 +467,11 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	for k, v in pairs(fields) do
 		if k:match("craftguide_craft_") then
 			craftguide_craft(player, formname, fields)
-			break
-		elseif k:match("craftguide_giveme_") then
+			return
+		end
+		if k:match("craftguide_giveme_") then
 			craftguide_giveme(player, formname, fields)
-			break
+			return
 		end
 	end
 end)