ofb/Assets/Scripts/DebugSceneSwitcher.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using TMPro;

public class DebugSceneSwitcher : MonoBehaviour
{

    void Awake() {
         if (!GameObject.Find("StateController").GetComponent<StateController>().inDebugMode) {
            Destroy(this.gameObject);
        }
        // check to see if a debug canvas already exists
        if (GameObject.FindGameObjectWithTag("DebugCanvas") != null) {
            Destroy(this.gameObject);
        } else { // if it doesn't, then this is the only one
            this.gameObject.tag = "DebugCanvas";
        }
        DontDestroyOnLoad(this.gameObject);
        CreateDropdownOptions();
    }

    void CreateDropdownOptions() {
        TMP_Dropdown sceneDropdown = GameObject.Find("SceneSwitcherDropdown").GetComponent<TMP_Dropdown>();
        if (sceneDropdown.options.Count == 0) {
            List<string> sceneNames = new List<string>();
            for (int i = 0; i < SceneManager.sceneCountInBuildSettings; i++) {
                string newName = System.IO.Path.GetFileNameWithoutExtension(SceneUtility.GetScenePathByBuildIndex(i));
                print(newName);
                sceneNames.Add(newName);
            }
            sceneDropdown.AddOptions(sceneNames);
        }
    }

    public void ChangeScene(int index) {
        // print(index);
        GameObject.FindGameObjectWithTag("SceneManager").GetComponent<SceneController>().LoadChosenScene(index);
    }
}