第一次提交作业

scenes/tip.gd

@@ -0,0 +1,19 @@
+extends Area2D
+
+
+# Called when the node enters the scene tree for the first time.
+ # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass
+signal hint_triggered
+
+func _ready():
+	body_entered.connect(_on_body_entered)
+	add_to_group("hint")
+
+func _on_body_entered(body: Node2D) -> void:
+	if body.has_method("take_damage"):   # 是主角
+		hint_triggered.emit()