Unity High score tracking

using UnityEngine;

// by @kurtdekker - ultra simple best score backing store

public static partial class TheBest
{
    // for scores: higher is better
    private static string s_HighScore = "HighScore";

    public static bool HaveBestScore
    {
        get
        {
            return PlayerPrefs.HasKey(s_HighScore);
        }
    }

    public static float BestScore
    {
        get
        {
            return PlayerPrefs.GetFloat(s_HighScore, 0);
        }
        private set     // make this public if you trust yourself
        {
            PlayerPrefs.SetFloat(s_HighScore, value);
        }
    }

    public static bool RecordScoreIfHigher(int score)
    {
        if (!HaveBestScore || (score > BestScore))
        {
            BestScore = score;
            return true;
        }
        return false;
    }

    public static void ClearBestScore()
    {
        if (HaveBestScore)
        {
            PlayerPrefs.DeleteKey(s_HighScore);
        }
    }
}