using UnityEngine;
using System.Collections;

public class Gold : MonoBehaviour {
    GameManager gm;

    public UnityEngine.UI.Text goldDisplay;

    private float _gold;

    void Start ()
    {
        gm = GameObject.Find("Game Manager").GetComponent<GameManager>();
        gm.Load();
    }

    void Update ()
    {
        UpdateGoldDisplay();
    }

    public void SetGold(float x)
    {
        _gold = x;
    }

    public float GetGold()
    {
        return _gold;
    }

    public void UpdateGoldDisplay()
    {
        SetGoldDisplay(GetGold().ToString());
    }
    public void SetGoldDisplay(string x)
    {
        goldDisplay.text = x;
    }
}

using UnityEngine;
using System.Collections;

public class GameManager : MonoBehaviour {

    GameObject GO_Player;
    Gold gold;

    void Start ()
    {
        GO_Player = GameObject.Find ("Player");
        gold = GO_Player.GetComponent<Gold>();
    }

    void OnApplicationQuiot()
    {
        Save();
    }
    public void Load()
    {
        gold.SetGold(PlayerPrefs.GetFloat("gold", 50));
    }
    private void Save()
    {
        PlayerPrefs.SetFloat("gold", 1);
    }

    public void DeleteSaves()
    {
        PlayerPrefs.SetFloat("gold", 0);
    }
}