[手把手带你Godot游戏开发]FlappyBird：8 让数据说话（显示分数）(未完)

extends Label

func _ready():
	add_to_group("score_changed")

func on_score_changed(score):
	text = str(score)

#ScoreArea.gd

extends Area2D

func _ready():
	connect("body_exited",self,"_on_body_exited")
func _on_body_exited(_body):
	if _body.name == "Bird":
		AudioManager.play("sfx_point")
		GameData.score += 1
		#加分以后通过SceenTree把新的分数更新给所有想接受这个消息的节点
		get_tree().call_group("score_changed","on_score_changed",GameData.score)