Set functions to setup sound/text from external sources

README.md

@@ -15,14 +15,17 @@ Or point to the ZIP file of a  [specific release](https://github.com/AGulev/drui
 #### Code
 Adjust druid settings:
 ```lua
-local settings = require("druid.settings")
-settings.play_sound = function(name)
-	...
-end
+local druid = require("druid.druid")
 
-settings.get_text = function(lang_id)
+--- Function should return localized string by lang_id
+druid.set_text_function(function(lang_id)
 	...
-end
+end)
+
+-- Function should play sound by name
+druid.set_sound_function(function(name)
+	...
+end)
 ```
 
 ## Usage

druid/const.lua

@@ -54,4 +54,6 @@ M.SPECIFIC_UI_MESSAGES = {
 	[M.ON_LAYOUT_CHANGED] = "on_layout_changed"
 }
 
+M.EMPTY_FUNCTION = function() end
+
 return M

druid/druid.lua

@@ -84,6 +84,16 @@ function M.set_default_style(style)
 end
 
 
+function M.set_text_function(callback)
+	settings.get_text = callback or const.EMPTY_FUNCTION
+end
+
+
+function M.set_sound_function(callback)
+	settings.play_sound = callback or const.EMPTY_FUNCTION
+end
+
+
 local function input_init(self)
 	if not self.input_inited then
 		self.input_inited = true