オーディオマネージャー

extends Node

var num_players = 8
var bus = "master"

var available = []  # The available players.
var queue = []  # The queue of sounds to play.


func _ready():
    # Create the pool of AudioStreamPlayer nodes.
    for i in num_players:
        var player = AudioStreamPlayer.new()
        add_child(player)
        available.append(player)
        player.finished.connect(_on_stream_finished.bind(player))
        player.bus = bus


func _on_stream_finished(stream):
    # When finished playing a stream, make the player available again.
    available.append(stream)


func play(sound_path):
    queue.append(sound_path)


func _process(delta):
	# Play a queued sound if any players are available.
    if not queue.empty() and not available.empty():
        available[0].stream = load(queue.pop_front())
        available[0].play()
        available.pop_front()

AudioManager.play("res://path/to/sound")