关卡1流程实现（测试版）

Assets/Gameplay/Scripts/Frist/PianoInteractable.cs

@@ -0,0 +1,19 @@
+using UnityEngine;
+
+public class PianoInteractable : MonoBehaviour, IInteractable
+{
+    public void OnEnterInteractionRange()
+    {
+        Debug.Log("OnEnterInteractionRange");
+    }
+
+    public void OnExitInteractionRange()
+    {
+        Debug.Log("OnExitInteractionRange");
+    }
+
+    public void OnInteract()
+    {
+        MusicGame.instance.Play();
+    }
+}