class_name CutsceneSingleton extends Node

const CUTSCENE_CONTINUE = -1
const CUTSCENE_END = -2

var running:bool = false

func setConversation(conversation:Array[ConversationElement]) -> void:
  var functions:Array[Callable] = []
  for element in conversation:
    functions.append(element.sceneItem)
  setScene(functions)

func setScene(functions:Array[Callable]) -> void:
  if functions.size() == 0:
    return

  running = true

  var index = 0
  while true:
    var result = await functions[index].call()

    match result:
      CUTSCENE_CONTINUE:
        index += 1

      CUTSCENE_END:
        break
      
      _:
        index = result

    if index >= functions.size() || index < 0:
      break

  running = false