convert to UPM package, demo to samples

Runtime/PlayerPrefsExtra.asmdef

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+{
+	"name": "PlayerPrefsExtra"
+}

Runtime/PlayerPrefsExtra.cs

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+using UnityEngine;
+using System.Collections.Generic;
+
+/// <summary>
+/// PlayerPrefsExtra gives you more possibilities like saving complex types :
+/// Vectors, Colors, Quaternions, Lists, and Your Pre defined types (Object) [classes or structs].
+/// 
+/// Developed by Hamza Herbou
+/// ---------------
+/// Email  : hamza95herbou@gmail.com
+/// GITHUB : https://github.com/herbou/
+/// 
+/// </summary>
+public class PlayerPrefsExtra : PlayerPrefs
+{
+	// Bool 
+	public static bool GetBool(string key)
+	{
+		return (PlayerPrefs.GetInt(key, 0) == 1);
+	}
+
+	public static bool GetBool(string key, bool defaultValue)
+	{
+		return (PlayerPrefs.GetInt(key, (defaultValue ? 1 : 0)) == 1);
+	}
+
+	public static void SetBool(string key, bool value)
+	{
+		PlayerPrefs.SetInt(key, (value ? 1 : 0));
+	}
+
+	// Vector 2 
+	public static Vector2 GetVector2(string key)
+	{
+		return Get<Vector2>(key, Vector2.zero);
+	}
+
+	public static Vector2 GetVector2(string key, Vector2 defaultValue)
+	{
+		return Get<Vector2>(key, defaultValue);
+	}
+
+	public static void SetVector2(string key, Vector2 value)
+	{
+		Set(key, value);
+	}
+
+	// Vector 3 
+	public static Vector3 GetVector3(string key)
+	{
+		return Get<Vector3>(key, Vector3.zero);
+	}
+
+	public static Vector3 GetVector3(string key, Vector3 defaultValue)
+	{
+		return Get<Vector3>(key, defaultValue);
+	}
+
+	public static void SetVector3(string key, Vector3 value)
+	{
+		Set(key, value);
+	}
+
+	// Vector 4 
+	public static Vector4 GetVector4(string key)
+	{
+		return Get<Vector4>(key, Vector4.zero);
+	}
+
+	public static Vector4 GetVector4(string key, Vector4 defaultValue)
+	{
+		return Get<Vector4>(key, defaultValue);
+	}
+
+	public static void SetVector4(string key, Vector4 value)
+	{
+		Set(key, value);
+	}
+
+	// Color 
+	public static Color GetColor(string key)
+	{
+		return Get<Color>(key, new Color(0f, 0f, 0f, 0f));
+	}
+
+	public static Color GetColor(string key, Color defaultValue)
+	{
+		return Get<Color>(key, defaultValue);
+	}
+
+	public static void SetColor(string key, Color value)
+	{
+		Set(key, value);
+	}
+
+	// Quaternion 
+	public static Quaternion GetQuaternion(string key)
+	{
+		return Get<Quaternion>(key, Quaternion.identity);
+	}
+
+	public static Quaternion GetQuaternion(string key, Quaternion defaultValue)
+	{
+		return Get<Quaternion>(key, defaultValue);
+	}
+
+	public static void SetQuaternion(string key, Quaternion value)
+	{
+		Set(key, value);
+	}
+
+	// List <T> 
+	public class ListWrapper<T>
+	{
+		public List<T> list = new List<T>();
+	}
+
+	public static List<T> GetList<T>(string key)
+	{
+		return Get<ListWrapper<T>>(key, new ListWrapper<T>()).list;
+	}
+
+	public static List<T> GetList<T>(string key, List<T> defaultValue)
+	{
+		return Get<ListWrapper<T>>(key, new ListWrapper<T> { list = defaultValue }).list;
+	}
+
+	public static void SetList<T>(string key, List<T> value)
+	{
+		Set(key, new ListWrapper<T> { list = value });
+	}
+
+	// Object 
+	public static T GetObject<T>(string key)
+	{
+		return Get<T>(key, default(T));
+	}
+
+	public static T GetObject<T>(string key, T defaultValue)
+	{
+		return Get<T>(key, defaultValue);
+	}
+
+	public static void SetObject<T>(string key, T value)
+	{
+		Set(key, value);
+	}
+
+	//Generic template ---------------------------------------------------------------------------------------
+
+	static T Get<T>(string key, T defaultValue)
+	{
+		return JsonUtility.FromJson<T>(PlayerPrefs.GetString(key, JsonUtility.ToJson(defaultValue)));
+	}
+
+	static void Set<T>(string key, T value)
+	{
+		PlayerPrefs.SetString(key, JsonUtility.ToJson(value));
+	}
+}