Created message class and updated menu system

scripts/Classes/Menu/combo_menu_resource.gd

@@ -0,0 +1,16 @@
+extends MenuResource
+
+class_name ComboMenuResource
+
+## Script path
+@export var item_script: StringName
+## Menu that will be transitioned to
+@export var item_menu: StringName
+
+## Returns script resource
+func load_script() -> GDScript:
+	return ResourceLoader.load(item_script)
+
+## Returns menu resource
+func load_menu() -> Menu:
+	return ResourceLoader.load(item_menu)

scripts/Classes/Menu/menu.gd

@@ -4,16 +4,17 @@ extends Resource
 class_name Menu
 
 enum Action {
+	## Represents lack of action, should not have resource in item_data
+	NoneAction,
 	## Represents when this menu should be replaced with another.
-	## Attach Menu next to it in item_data 
+	## Attach MenuMenuResource next to it in item_data 
 	TransitAction,
 	## Represents scripts which should be attached to button on menu startup
-	## Attach Script next to it in item_data
+	## Attach ScriptMenuResource next to it in item_data
 	ButtonAction,
-	## WIP, should represent LineEdit or some other input control
-	InputAction,
-	## WIP
-	OtherAction
+	## Represents button script with transition after its execution
+	## Attach ComboMenuResource next to it in item_data
+	ComboAction
 	}
 
 ## Action string IDs. Should have same size as item_actions

scripts/Classes/Menu/menu_action.gd

@@ -0,0 +1,14 @@
+extends Button
+
+class_name MenuAction
+
+var id: int = -1
+
+func _init():
+	get_tree().create_timer(0.05).timeout.connect(_ready)
+
+func _ready():
+	button_up.connect(action)
+
+func action():
+	pass

scripts/Classes/Menu/menu_menu_resource.gd

@@ -4,5 +4,6 @@ class_name MenuMenuResource
 
 @export var item: StringName
 
-func load() -> Menu:
+## Returns menu resource
+func load_menu() -> Menu:
 	return ResourceLoader.load(item)

scripts/Classes/Menu/script_menu_resource.gd

@@ -4,5 +4,6 @@ class_name ScriptMenuResource
 
 @export var item: StringName
 
-func load() -> GDScript:
+## Returns script resource
+func load_script() -> GDScript:
 	return ResourceLoader.load(item)