Added dialogue manager plugin

addons/dialogue_manager/dialogue_resource.gd

@@ -0,0 +1,40 @@
+@tool
+@icon("./assets/icon.svg")
+
+## A collection of dialogue lines for use with [code]DialogueManager[/code].
+class_name DialogueResource extends Resource
+
+
+## A list of state shortcuts
+@export var using_states: PackedStringArray = []
+
+## A map of cues and the lines they point to.
+@export var cues: Dictionary = {}
+
+## A list of character names.
+@export var character_names: PackedStringArray = []
+
+## The first cue in the file.
+@export var first_cue: String = ""
+
+## A map of the encoded lines of dialogue.
+@export var lines: Dictionary = {}
+
+
+## Get the next printable line of dialogue, starting from a referenced line ([code]cue[/code] can
+## be a cues string or a stringified line number). Runs any mutations along the way and then returns
+## the first dialogue line encountered.
+func get_next_dialogue_line(cue: String = "", extra_game_states: Array = [], mutation_behaviour: DMConstants.MutationBehaviour = DMConstants.MutationBehaviour.Wait) -> DialogueLine:
+	return await Engine.get_singleton("DialogueManager").get_next_dialogue_line(self, cue, extra_game_states, mutation_behaviour)
+
+
+## Get the list of any cues found in the file.
+func get_cues() -> PackedStringArray:
+	return cues.keys()
+
+
+func _to_string() -> String:
+	if resource_path:
+		return "<DialogueResource path=\"%s\">" % [resource_path]
+	else:
+		return "<DialogueResource>"