Hello all!

I've reached a point in which I can't dig out of and hoping to have some other eyes on it. The project is to manage scene flow and implement data persistence between scenes as well as between sessions. I feel like I have the scene flow down as each button I've implemented sends the player to the correct scene with the exception of my pause menu (I need to figure out how to resume play when hitting the resume button, but that's another journey).

I need to figure out 1. How to reset the score when game over happens. It stays and adds to each time a new game is started. And 2. How to implement a "High Score" with an entry field for the players name at the end of the high score winning game.

I have three main scripts MainManager.cs (given to us, but I've made adjustments), ScoreManager.cs, and ButtonManager.cs.

 public class MainManager : MonoBehaviour
 {
 public Brick BrickPrefab;
 public int LineCount = 6;
 public Rigidbody Ball;

 public Text ScoreText;
 public GameObject GameOverText;

 private static int m_Points;
 private bool m_Started = false;    
 private bool m_GameOver = false;

 public GameObject pauseText;
 public bool isPauseActive = false;

 void Start()
 {
     isPauseActive = false;

     const float step = 0.6f;
     int perLine = Mathf.FloorToInt(4.0f / step);
     
     int[] pointCountArray = new [] {1,1,2,2,5,5};
     for (int i = 0; i < LineCount; ++i)
     {
         for (int x = 0; x < perLine; ++x)
         {
             Vector3 position = new Vector3(-1.5f + step * x, 2.5f + i * 0.3f, 0);
             var brick = Instantiate(BrickPrefab, position, Quaternion.identity);
             brick.PointValue = pointCountArray[i];
             brick.onDestroyed.AddListener(AddPoint);
         }
     }
 }

 private void Update()
 {
     if (!m_Started)
     {
         if (Input.GetKeyDown(KeyCode.Space))
         {
             m_Started = true;
             float randomDirection = Random.Range(-1.0f, 1.0f);
             Vector3 forceDir = new Vector3(randomDirection, 1, 0);
             forceDir.Normalize();

             Ball.transform.SetParent(null);
             Ball.AddForce(forceDir * 2.0f, ForceMode.VelocityChange);
         }
     }
     else if (m_GameOver)
     {
         if (Input.GetKeyDown(KeyCode.Space))
         {
             SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex);
         }
     }

     if (m_Started)
     {
         if (Input.GetKeyDown(KeyCode.Escape))
         {
             PauseGame();                
         }
     }
 }

 void AddPoint(int point)
 {
     m_Points += point;
     ScoreText.text = $"Score : {m_Points}";

     ScoreManager.scoreManager.score = m_Points;
 }

 public void GameOver()
 {
     m_GameOver = true;
     GameOverText.SetActive(true);
 }

 void PauseGame()
 {
     isPauseActive = true;
     Time.timeScale = 0;
     pauseText.SetActive(true);
 }

}

 public class ScoreManager : MonoBehaviour
 {
 public static ScoreManager scoreManager;

 public int score;
 public int highScore;

 void Awake()
 {
     if (scoreManager != null)
     {
         Destroy(gameObject);
         return;
     }

     scoreManager = this;
     DontDestroyOnLoad(gameObject);
 }

}

 public class ButtonManager : MonoBehaviour
 {

 public void MainMenu()
 {
     SceneManager.LoadScene(0);
 }

 public void HighScores()
 {
     SceneManager.LoadScene(3);
 }

 public void StartNew()
 {
     SceneManager.LoadScene(1);
 }

 public void ResumeGame()
 {
     //need to resume play with saved information from before hitting pause (esc)
 }

 public void Exit()
 {

if UNITY_EDITOR

    EditorApplication.ExitPlaymode();

else

    Application.Quit(); //original code to quit Unity player

endif

} }

Thank you in advance for taking the time to read and assist!