did a minor tweak

Assets/Scripts/mainMenu.cs

@@ -0,0 +1,69 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+public class mainMenu : MonoBehaviour
+{
+    public string firstLevel;
+    public GameObject optionsScreen;
+    public GameObject creditsScreen;
+    public GameObject binderRing;
+    public int currentLevel = 1;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+
+    }
+
+    public void StartGame()
+    {
+        if (!PlayerPrefs.HasKey("CurrentLevel"))
+        {
+            PlayerPrefs.SetInt("CurrentLevel", currentLevel);
+        }
+        SceneManager.LoadScene("Real World");
+    }
+
+    public void OpenOptions()
+    {
+        optionsScreen.SetActive(true);
+        binderRing.SetActive(false);
+    }
+
+    public void CloseOptions()
+    {
+        optionsScreen.SetActive(false);
+        binderRing.SetActive(true);
+    }
+
+    public void OpenCredits()
+    {
+        creditsScreen.SetActive(true);
+        binderRing.SetActive(false);
+    }
+
+    public void CloseCredits()
+    {  
+        creditsScreen.SetActive(false);
+        binderRing.SetActive(true);
+    }
+
+    public void ResetLevel()
+    {
+        PlayerPrefs.SetInt("CurrentLevel", currentLevel);
+    }
+
+    public void QuitGame()
+    {
+        Application.Quit();
+        Debug.Log("Quitting");
+    }
+}