Added Dialogic and a test dialog

addons/dialogic/Modules/Core/subsystem_animation.gd

@@ -0,0 +1,42 @@
+extends DialogicSubsystem
+
+## Subsystem that allows entering and leaving an animation state.
+
+signal finished
+signal animation_interrupted
+
+var prev_state: DialogicGameHandler.States = DialogicGameHandler.States.IDLE
+
+var _is_animating := false
+
+#region MAIN METHODS
+####################################################################################################
+
+func clear_game_state(_clear_flag := DialogicGameHandler.ClearFlags.FULL_CLEAR) -> void:
+	stop_animation()
+
+
+func is_animating() -> bool:
+	return _is_animating
+
+
+func start_animating() -> void:
+	prev_state = dialogic.current_state
+	dialogic.current_state = dialogic.States.ANIMATING
+	_is_animating = true
+
+
+func animation_finished(_arg := "") -> void:
+	# It can happen that the animation state has already been stopped
+	if not is_animating():
+		return
+	_is_animating = false
+	dialogic.current_state = prev_state as DialogicGameHandler.States
+	finished.emit()
+
+
+func stop_animation() -> void:
+	animation_finished()
+	animation_interrupted.emit()
+
+#endregion