Unity 3d Simple Score Board Manager

ScoresRanked.cs

using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;



namespace ScoreBoard
{
    [Serializable]
    public class PlayerScore

    {
        public string Name;
        public int Score;

        public PlayerScore(string name, int score)
        {
            Name = name;
            Score = score;
        }
    }

    [Serializable]
    // we need to store list of scores in a container class so we can change it to json 
    public  class PlayerScoresRankedListContainer
    {
        public  List<PlayerScore> PlayerScoresRanked = new List<PlayerScore>();
    }


    [Serializable]
    public class ScoresRanked  : MonoBehaviour
    {
        public static PlayerScoresRankedListContainer PlayerScoresListContainer =new PlayerScoresRankedListContainer();

        public void Awake()
        {
            //example of usage 

            //get saved items
            if (PlayerPrefs.GetString("PlayerScoresRanked").Length > 0)
            {
                PlayerScoresListContainer.PlayerScoresRanked = GetSortedListFromPlayerPrefs();
                DebugShowScores();
            }
            else
            {
                //test the class asving items 

                AddScoreToRankedList("player1", 1000);
                AddScoreToRankedList("player2", 20);
                AddScoreToRankedList("player3", 100);
                SaveListAsJSONInPlayerPrefs();
            }

        }

        private void AddScoreToRankedList(string player, int currentScore)
        {

            var score = new PlayerScore(player, currentScore);

            if (DoesScoreAlreadyExist(score))
            {
                //we remove a score if it already exists so we can updated it 
                //you might not need this maybe you just want to keep adding scores
                PlayerScoresListContainer.PlayerScoresRanked.RemoveAll(x => x.Name == score.Name);
                PlayerScoresListContainer.PlayerScoresRanked.Add(score);

            }
            else
            {
                PlayerScoresListContainer.PlayerScoresRanked.Add(score);
            }


        }

        public void SaveListAsJSONInPlayerPrefs()
        {


           var jsonlist = JsonUtility.ToJson(PlayerScoresListContainer);

            Debug.Log("LOG ITEMS BEING SAVED: "+jsonlist);

            PlayerPrefs.SetString("PlayerScoresRanked", jsonlist);
        }

        public List<PlayerScore> GetSortedListFromPlayerPrefs()
        {
            var jsonlist = PlayerPrefs.GetString("PlayerScoresRanked");

            var ListContainer = JsonUtility.FromJson<PlayerScoresRankedListContainer>(jsonlist);

            var listsorted = ListContainer.PlayerScoresRanked.OrderByDescending(x => x.Score).ToList();

            return listsorted;
        }

        public bool DoesScoreAlreadyExist(PlayerScore scoreToChcek)
        {
            if (PlayerScoresListContainer.PlayerScoresRanked.Exists(x => x.Name == scoreToChcek.Name))
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        public void DebugShowScores()
        {
            foreach (var playerScore in PlayerScoresListContainer.PlayerScoresRanked)
            {
                Debug.Log(playerScore.Name + " " + playerScore.Score);
            }
        }

    }

}