Set server_announce to world.mt and respect modes when changing subgame

builtin/mainmenu/common.lua

@@ -322,7 +322,7 @@ function menu_worldmt(selected, setting, value)
 end
 
 function menu_worldmt_legacy(selected)
-	local modes_names = {"creative_mode", "enable_damage"}
+	local modes_names = {"creative_mode", "enable_damage", "server_announce"}
 	for _, mode_name in pairs(modes_names) do
 		local mode_val = menu_worldmt(selected, mode_name)
 		if mode_val ~= nil then

builtin/mainmenu/tab_server.lua

@@ -103,6 +103,9 @@ local function main_button_handler(this, fields, name, tabdata)
 
 	if fields["cb_server_announce"] then
 		core.setting_set("server_announce", fields["cb_server_announce"])
+		local selected = core.get_textlist_index("srv_worlds")
+		menu_worldmt(selected, "server_announce", fields["cb_server_announce"])
+
 		return true
 	end
 

builtin/mainmenu/tab_singleplayer.lua

@@ -38,6 +38,14 @@ local function singleplayer_refresh_gamebar()
 					core.set_topleft_text(gamemgr.games[j].name)
 					core.setting_set("menu_last_game",gamemgr.games[j].id)
 					menudata.worldlist:set_filtercriteria(gamemgr.games[j].id)
+					local index = filterlist.get_current_index(menudata.worldlist,
+						tonumber(core.setting_get("mainmenu_last_selected_world")))
+					local selected = core.get_textlist_index("sp_worlds")
+					if not index or index < 1 then
+						index = math.min(core.get_textlist_index("sp_worlds"),
+							#menudata.worldlist:get_list())
+					end
+					menu_worldmt_legacy(index)
 					return true
 				end
 			end