added tutorial, fixed score UI

Assets/Scripts/Tutorial.cs

@@ -0,0 +1,34 @@
+using System.Collections;
+using System.Collections.Generic;
+using TMPro;
+using UnityEngine;
+using UnityEngine.Experimental.GlobalIllumination;
+
+public class Tutorial : MonoBehaviour
+{
+    float timer = 0;
+    public float TutorialTime = 7;
+    public GameObject Darkness;
+    public GameObject levelUI;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        gameObject.SetActive(true);
+        Darkness.SetActive(true);
+        levelUI.SetActive(false);
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        timer += Time.deltaTime;
+
+        if (timer >= TutorialTime)
+        {
+            gameObject.SetActive(false);
+            Darkness.SetActive(false);
+            levelUI.SetActive(true);
+        }
+    }
+}