refactor

Assets/Scripts/Managers/DontDestroy.cs

@@ -0,0 +1,18 @@
+using UnityEngine;
+
+public class DontDestroy : MonoBehaviour
+{
+    public static DontDestroy Instance { get; private set; }
+
+    private void Awake()
+    {
+        if (Instance == null)
+        {
+            Instance = this;
+            DontDestroyOnLoad(gameObject);
+        }
+        else
+            Destroy(gameObject);
+
+    }
+}