@tool
class_name Sfx2D extends AudioStreamPlayer2D

@export var loop := false


func _ready() -> void:
	bus = &"game_sfx"
	finished.connect(_on_finished)

func _on_finished() -> void:
	if loop:
		play()


# queue free 导致 sfx 无法播放，使用全局声源
func global_play() -> void:
	if stream:
		AudioManager.play_sfx(stream)

# 注意：会导致 volume db 变化
func easing_kill(duration: float = 2.0) -> void:
	# stop with easing
	if playing:
		var tween = create_tween()
		tween.tween_property(self, "volume_db", -80.0, duration)
		tween.tween_callback(stop)