PlayerPrefsToJson.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Microsoft.Win32;
using Newtonsoft.Json;
using RejectedGames;
using UnityEditor;
using UnityEngine;

namespace MyEditor
{
    public class PlayerPrefsToJson : MonoBehaviour
    {
        private static readonly string[] UnityHiddenSettings =
        {
            "UnityGraphicsQuality",
            "unity.cloud_userid",
            "unity.player_session_background_time",
            "unity.player_session_elapsed_time",
            "unity.player_sessionid"
        };

        [MenuItem("Tools/UpdateJsonPlayerPrefs")]
        private static void DeletePlayerPrefs()
        {
            File.WriteAllText(Application.dataPath + "/PlayerPrefs.json",
                JsonConvert.SerializeObject(GetAllKeys().Select(s => new APPWindow.PlayerPrefsEntry(s)).ToDictionary(
                    entry => entry.Key, entry =>
                    {
                        if (entry.Value is string)
                        {
                            return entry.Value.ToString()
                                .Split(new[] { "=|" }, StringSplitOptions.None).LastOrDefault();
                        }
                        return entry.Value;
                    }), Formatting.Indented));
        }

        private static string[] GetAllKeys()
        {
            var result = new List<string>();

            if (Application.platform == RuntimePlatform.WindowsEditor)
                result.AddRange(GetAllWindowsKeys());
            else if (Application.platform == RuntimePlatform.OSXEditor)
                result.AddRange(GetAllMacKeys());
#if UNITY_EDITOR_LINUX
			else if (Application.platform == RuntimePlatform.LinuxEditor) 
				result.AddRange(GetAllLinuxKeys());
#endif
            else
                Debug.LogError(
                    "Unsupported platform detected, please contact support@rejected-games.com and let us know.");

            //Remove something Unity sometimes saves in your PlayerPrefs
            for (var i = 0; i < UnityHiddenSettings.Length; i++)
                if (result.Contains(UnityHiddenSettings[i]))
                    result.Remove(UnityHiddenSettings[i]);

            return result.ToArray();
        }

        /// <summary>
        ///     On Windows, PlayerPrefs are stored in the registry under HKCU\Software\[company name]\[product name] key, where
        ///     company and product names are the names set up in Project Settings.
        /// </summary>
        private static string[] GetAllWindowsKeys()
        {
            var cuKey = Registry.CurrentUser;
            RegistryKey unityKey;

            //The default location of PlayerPrefs pre Unity 5_5
#if UNITY_5_5_OR_NEWER
            unityKey = cuKey.CreateSubKey("Software\\Unity\\UnityEditor\\" + PlayerSettings.companyName + "\\" +
                                          PlayerSettings.productName);
#else
			unityKey = cuKey.CreateSubKey("Software\\" + PlayerSettings.companyName + "\\" + PlayerSettings.productName);

			if (unityKey.GetValueNames().Length == 0)
			{
				//On some machines (Windows 7 & 8 64bit using Unity5.4) PlayersPrefs are saved in HKEY_CURRENT_USER\SOFTWARE\AppDataLow\Software\CompanyName\ProjectName weird enough...
				unityKey =
cuKey.CreateSubKey("Software\\AppDataLow\\Software\\" + PlayerSettings.companyName + "\\" + PlayerSettings.productName);
			}
#endif

            var values = unityKey.GetValueNames();
            for (var i = 0; i < values.Length; i++)
                values[i] = values[i].Substring(0, values[i].LastIndexOf("_"));

            return values;
        }

        /// <summary>
        ///     On Mac OS X PlayerPrefs are stored in ~/Library/Preferences folder, in a file named unity.[company name].[product
        ///     name].plist, where company and product names are the names set up in Project Settings. The same .plist file is used
        ///     for both Projects run in the Editor and standalone players.
        /// </summary>
        private static string[] GetAllMacKeys()
        {
            var plistPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal) +
                            "/Library/Preferences/unity." +
                            PlayerSettings.companyName + "." + PlayerSettings.productName + ".plist";
            var keys = new string[0];

            if (File.Exists(plistPath))
            {
                var fi = new FileInfo(plistPath);
                var plist = (Dictionary<string, object>)Plist.readPlist(fi.FullName);

                keys = new string[plist.Count];
                plist.Keys.CopyTo(keys, 0);
            }

            return keys;
        }
    }
}