Inventory sorting: Add option for rejecting items

init.lua

@@ -35,6 +35,7 @@ i3 = {
 		bag_size = true,
 		waypoints = true,
 		inv_items = true,
+		reject_items = true,
 		known_recipes = true,
 	},
 
@@ -76,7 +77,7 @@ i3.files.groups()
 i3.files.inventory()
 
 local storage = core.get_mod_storage()
-local fmt, copy, slz, dslz = i3.get("fmt", "copy", "slz", "dslz")
+local slz, dslz = i3.get("slz", "dslz")
 
 i3.data = dslz(storage:get_string "data") or {}
 
@@ -92,7 +93,7 @@ local function get_formspec_version(info)
 end
 
 local function outdated(name)
-	local fs = fmt("size[6.3,1.3]image[0,0;1,1;i3_book.png]label[1,0;%s]button_exit[2.6,0.8;1,1;;OK]",
+	local fs = ("size[6.3,1.3]image[0,0;1,1;i3_book.png]label[1,0;%s]button_exit[2.6,0.8;1,1;;OK]"):format(
 		"Your Minetest client is outdated.\nGet the latest version on minetest.net to play the game.")
 
 	core.show_formspec(name, "i3_outdated", fs)
@@ -195,7 +196,7 @@ local function init_hudbar(player)
 end
 
 local function save_data(player_name)
-	local _data = copy(i3.data)
+	local _data = table.copy(i3.data)
 
 	for name, v in pairs(_data) do
 	for dat in pairs(v) do

src/common.lua

@@ -446,12 +446,32 @@ local function compress_items(list, start_i)
 	return new_inv
 end
 
+local function reject_items(player, inv, list, rej)
+	for i = 1, #list do
+		local stack = list[i]
+		local name = stack:get_name()
+
+		for _, it in ipairs(rej) do
+			if name == it then
+				spawn_item(player, stack)
+				inv:set_stack("main", i, ItemStack(""))
+			end
+		end
+	end
+
+	return inv:get_list("main")
+end
+
 local function sort_inventory(player, data)
 	local inv = player:get_inventory()
 	local list = inv:get_list("main")
 	local size = inv:get_size("main")
 	local start_i = data.ignore_hotbar and 10 or 1
 
+	if true_table(data.reject_items) then
+		list = reject_items(player, inv, list, data.reject_items)
+	end
+
 	if data.inv_compress then
 		list = compress_items(list, start_i)
 	else

src/gui.lua

@@ -475,6 +475,15 @@ local function show_popup(fs, data)
 			fs("checkbox", 2.4, 10.5,  "cb_reverse_sorting", "Reverse sorting", tostring(data.reverse_sorting))
 			fs("checkbox", 2.4, 10.95, "cb_auto_sorting", "Automatic sorting", tostring(data.auto_sorting))
 			fs("checkbox", 5.4, 10.05, "cb_ignore_hotbar", "Ignore hotbar", tostring(data.ignore_hotbar))
+
+			for _ = 1, 3 do
+				fs("box", 5.4, 10.68, 2.4, 0.45, "#707070")
+			end
+
+			fs("style[reject_items;font_size=15;font=mono;textcolor=#bddeff]")
+			fs(fmt("field[5.4,10.68;2.4,0.45;reject_items;Reject items:;%s]",
+				ESC(concat(data.reject_items or {}, ","))))
+			fs("field_close_on_enter[reject_items;false]")
 		end
 	end
 end

src/inventory.lua

@@ -3,7 +3,7 @@ local _, get_inventory_fs = i3.files.gui()
 local S, clr = i3.get("S", "clr")
 local min, ceil, random = i3.get("min", "ceil", "random")
 local reg_items, reg_aliases = i3.get("reg_items", "reg_aliases")
-local fmt, find, match, sub, lower = i3.get("fmt", "find", "match", "sub", "lower")
+local fmt, find, match, sub, lower, split = i3.get("fmt", "find", "match", "sub", "lower", "split")
 local vec_new, vec_eq, vec_round = i3.get("vec_new", "vec_eq", "vec_round")
 local sort, copy, insert, remove, indexof = i3.get("sort", "copy", "insert", "remove", "indexof")
 
@@ -55,6 +55,11 @@ i3.new_tab {
 			skins.set_player_skin(player, _skins[id])
 		end
 
+		if fields.reject_items then
+			local items = split(fields.reject_items, ",")
+			data.reject_items = items
+		end
+
 		for field in pairs(fields) do
 			if sub(field, 1, 4) == "btn_" then
 				data.subcat = indexof(i3.SUBCAT, sub(field, 5))