New storage backend (#6)

Co-authored-by: OgelGames <olliverdc28@gmail.com>

.luacheckrc

@@ -1,14 +1,10 @@
-
 read_globals = {
 	-- Stdlib
-	string = {fields = {"split"}},
-	table = {fields = {"copy", "getn"}},
-	"VoxelManip",
+	"string",
+	"table",
 
 	-- Minetest
 	"minetest", "DIR_DELIM",
-	"vector", "ItemStack",
-	"dump", "VoxelArea",
 
 	-- Deps
 	"dreambuilder_theme"

init.lua

@@ -1,25 +1,13 @@
+local storage = minetest.get_mod_storage()
 local themename = ""
 
 if minetest.global_exists("dreambuilder_theme") then
 	themename = dreambuilder_theme.name.."_"
 end
 
-local player_hotbar_settings = {}
-local f = io.open(minetest.get_worldpath()..DIR_DELIM.."hotbar_settings","r")
-if f then
-	player_hotbar_settings = minetest.deserialize(f:read("*all"))
-	f:close()
-end
-
-local function validate_size(s)
-	local size = s and tonumber(s) or 16
-	return math.floor(0.5 + math.max(1, math.min(size, 32)))
-end
-
-local hotbar_size_default = validate_size(minetest.settings:get("hotbar_size"))
-
 local base_img = themename.."gui_hb_bg_1.png"
 local imgref_len = string.len(base_img) + 8 -- accounts for the stuff in the string.format() below.
+local hotbar_size_default = 16
 
 local img = {}
 for i = 0, 31 do
@@ -27,34 +15,74 @@ for i = 0, 31 do
 end
 local hb_img = table.concat(img)
 
-local function set_hotbar_size(player, s)
-	local hotbar_size = validate_size(s)
+local function validate_size(s)
+	local size = s and tonumber(s) or hotbar_size_default
+	return math.floor(0.5 + math.max(1, math.min(size, 32)))
+end
+
+hotbar_size_default = validate_size(minetest.settings:get("hotbar_size"))
+
+local function migrate_file2modstorage()
+	local path = minetest.get_worldpath()..DIR_DELIM.."hotbar_settings"
+	local f = io.open(path, "r")
+	if f then
+		local hotbar_sizes = minetest.deserialize(f:read("*all"))
+		f:close()
+		local counter = 0
+		for name, size in pairs(hotbar_sizes) do
+			if size ~= hotbar_size_default then
+				storage:set_int(name, tonumber(size))
+				counter = counter + 1
+			end
+		end
+		os.remove(path)
+		minetest.log("action", "[dreambuilder_hotbar] Migrated " .. counter .. " player hotbars to modstorage")
+	end
+end
+
+local function get_hotbar_size(player)
+	local name = player:get_player_name()
+	local meta = player:get_meta()
+	local size = meta:get_int("hotbar_size")
+	if size == 0 then -- not present
+		size = storage:get_int(name)
+		if size ~= 0 then -- migrate
+			storage:set_string(name, "")
+			meta:set_int("hotbar_size", size)
+		end
+	end
+	return size > 0 and size or hotbar_size_default
+end
+
+local function update_hotbar(player, hotbar_size)
 	player:hud_set_hotbar_itemcount(hotbar_size)
 	player:hud_set_hotbar_selected_image(themename.."gui_hotbar_selected.png")
 	player:hud_set_hotbar_image("[combine:"..(hotbar_size*64).."x64"..string.sub(hb_img, 1, hotbar_size*imgref_len))
+end
+
+local function set_hotbar_size(player, size)
+	local meta = player:get_meta()
+	local hotbar_size = validate_size(size)
+	if hotbar_size ~= hotbar_size_default then
+		meta:set_int("hotbar_size", hotbar_size)
+	end
+	update_hotbar(player, hotbar_size)
 	return hotbar_size
 end
 
 minetest.register_on_joinplayer(function(player)
-	minetest.after(0.5,function()
-		set_hotbar_size(player, tonumber(player_hotbar_settings[player:get_player_name()]) or hotbar_size_default)
+	minetest.after(0.5, function()
+		update_hotbar(player, get_hotbar_size(player))
 	end)
 end)
 
 minetest.register_chatcommand("hotbar", {
-	params = "[size]",
-	description = "Sets the size of your hotbar, from 1 to 32 slots, default 16",
+	params = "<size>",
+	description = "Sets the size of your hotbar, from 1 to 32 slots, default " .. hotbar_size_default,
 	func = function(name, slots)
 		local size = set_hotbar_size(minetest.get_player_by_name(name), slots)
-		player_hotbar_settings[name] = size
 		minetest.chat_send_player(name, "[_] Hotbar size set to " ..size.. ".")
-
-		f = io.open(minetest.get_worldpath()..DIR_DELIM.."hotbar_settings","w")
-		if not f then
-			minetest.log("error","Failed to save hotbar settings")
-		else
-			f:write(minetest.serialize(player_hotbar_settings))
-			f:close()
-		end
-	end,
+	end
 })
+
+migrate_file2modstorage()

settingtypes.txt

@@ -0,0 +1,2 @@
+# default hotbar size
+hotbar_size (Default hotbar size) int 16 1 32