Save and Load

using System.Collections;
using System.Collections.Generic;
using System.Xml.Serialization;
using System.IO;
using UnityEngine;

public class SaveAndLoad : MonoBehaviour
{

    public VariableManager varMan; //Script which stores the variables you wish to save.
    static string coinFilePath = ReturnPath(); //Path to the loacllay stored save data.

    //Called when the object is created.
    void Awake()
    {
        //Make object transferable through scenes.
        DontDestroyOnLoad(this.gameObject);

        //If there is locally saved data, load it.
        if (CheckForExistingFile () == true)
        {
            LoadCurrency ();
        }
    }

    //Returns the path to the locally saved data
    static string ReturnPath()
    {
        string coinFilePath = Path.Combine(Application.persistentDataPath, "coins.xml");
        return coinFilePath;
    }

    //Checks if loadable data is present.
    bool CheckForExistingFile()
    {
        if (!File.Exists (coinFilePath))
        {
            return false;
        }
        else
        {
            return true;
        }

    }

    // Loads the current currency amounts
    void LoadCurrency ()
    {

        var serializer = new XmlSerializer(typeof(int));
        var stream = new FileStream(coinFilePath, FileMode.Open);
        int container = (int)serializer.Deserialize(stream);
        stream.Close();

        varMan.coins = container;

        Debug.Log("coins: " + varMan.coins);
    }

    // Saves the current currency amounts
    public void SaveCurrency()
    {
        var serializer = new XmlSerializer(typeof(int));
        var stream = new FileStream(coinFilePath, FileMode.Create);
        serializer.Serialize(stream, varMan.coins);
        stream.Close();

        string text = stream.ToString ();
    }
}