Added dialogue manager plugin

addons/dialogue_manager/utilities/waiter.gd

@@ -0,0 +1,35 @@
+class_name DMWaiter extends Node
+
+
+signal waited(for_action: String)
+
+
+static var all_waiters: Array[DMWaiter]
+
+var _actions: PackedStringArray
+var _null: String = str(null)
+
+
+## Emit [code]waited[/code] on all waiting [DMWaiter]s.
+static func clear_all() -> void:
+	for waiter: DMWaiter in all_waiters:
+		all_waiters.erase(waiter)
+		waiter.waited.emit(null)
+
+
+func _init(target_actions: PackedStringArray) -> void:
+	all_waiters.append(self)
+	_actions = target_actions
+
+
+func _exit_tree() -> void:
+	all_waiters.erase(self)
+
+
+func _input(event: InputEvent) -> void:
+	for action: String in _actions:
+		if event.is_pressed():
+			if action == _null or (InputMap.has_action(action) and event.is_action(action)):
+				get_viewport().set_input_as_handled()
+				all_waiters.erase(self)
+				waited.emit(action)