GameController.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using UnityEngine;

public class GameController : MonoBehaviour {

    static GameController gameController = null;
    private UnlockablesScript unlockables;

    public int score;
    public int money;
    public int totalBalance;
    public int selectedPaddle;
    public int selectedBall;
    public float difficultySetting;
    public int tries;
    public int startingTries;

    void Awake()
    {
        if (gameController == null)
        {
            DontDestroyOnLoad(gameObject);
            gameController = this;
        }
        else if (gameController != null && gameController != this)
        {
            Destroy(gameObject);
        }
        Load();
    }

    // Use this for initialization
    void Start () {
        difficultySetting = PlayerPrefsManager.GetDifficulty();
        unlockables = FindObjectOfType<UnlockablesScript>();
        startingTries = 3;
    }

    // Update is called once per frame
    void Update () {

        //debugging keys, remove once completed
        if (Input.GetKeyDown(KeyCode.Alpha0))
        {
            selectedPaddle++;

            if (selectedPaddle >= 8)
            {
                selectedPaddle = 0;
            }
        }
        if (Input.GetKeyDown(KeyCode.Alpha9))
        {
            selectedBall++;

            if (selectedBall >= 8)
            {
                selectedBall = 0;
            }
        }
        if (Input.GetKeyDown(KeyCode.Alpha8))
        {

            if (difficultySetting < 4)
            {
                difficultySetting += 1f;
                Debug.Log("Difficulty value = " + difficultySetting);
            }


            else if (difficultySetting == 4f)
            {
                difficultySetting = 1f;
                Debug.Log("Difficulty value = " + difficultySetting);
            }
        }

        //
        CheckDifficultySetting();
    }

    private void CheckDifficultySetting()
    {
        if (difficultySetting == 1) //Easy
        {
            startingTries = 5;
        }
        else if (difficultySetting == 2) // Normal
        {
            startingTries = 3;
        }
        else if (difficultySetting == 3) // Hard
        {
            startingTries = 1;
        }
        else if (difficultySetting == 4) // Masochist
        {
            startingTries = 0;
        }

    }
    public void AddToBalance(int deposit)
    {
        totalBalance += deposit;
    }
    public void Save()
    {
        BinaryFormatter bf = new BinaryFormatter();
        FileStream file = File.Create(Application.persistentDataPath + "/player.dat");

        PlayerData data = new PlayerData();
        data.totalMoney = totalBalance;
        data.p01 = unlockables.paddles[0];
        data.p02 = unlockables.paddles[1];
        data.p03 = unlockables.paddles[2];
        data.p04 = unlockables.paddles[3];
        data.p05 = unlockables.paddles[4];
        data.p06 = unlockables.paddles[5];
        data.p07 = unlockables.paddles[6];

        data.b01 = unlockables.balls[0];
        data.b02 = unlockables.balls[1];
        data.b03 = unlockables.balls[2];
        data.b04 = unlockables.balls[3];
        data.b05 = unlockables.balls[4];
        data.b06 = unlockables.balls[5];
        data.b07 = unlockables.balls[6];

        data.colorChange = unlockables.colorChangeMode;

        bf.Serialize(file, data);
    }

    public void Load()
    {
        if (File.Exists(Application.persistentDataPath + "/player.dat"))
        {
            BinaryFormatter bf = new BinaryFormatter();
            FileStream file = File.Open(Application.persistentDataPath + "/player.dat", FileMode.Open);
            PlayerData data = (PlayerData)bf.Deserialize(file);
            file.Close();

            //change later so money only adds to total for each game
            totalBalance = data.totalMoney;

            unlockables.paddles[0] = data.p01;
            unlockables.paddles[1] = data.p02;
            unlockables.paddles[2] = data.p03;
            unlockables.paddles[3] = data.p04;
            unlockables.paddles[4] = data.p05;
            unlockables.paddles[5] = data.p06;
            unlockables.paddles[6] = data.p07;

            unlockables.balls[0] = data.b01;
            unlockables.balls[1] = data.b02;
            unlockables.balls[2] = data.b03;
            unlockables.balls[3] = data.b04;
            unlockables.balls[4] = data.b05;
            unlockables.balls[5] = data.b06;
            unlockables.balls[6] = data.b07;

            unlockables.colorChangeMode = data.colorChange;
        }
    }
    public void Delete() //Deletes player data binary if player wants to clear all unlocks and accumulated money.
    {
        if(File.Exists(Application.persistentDataPath + "/player.dat"))
        {
            BinaryFormatter bf = new BinaryFormatter();
            File.Delete(Application.persistentDataPath + "/player.dat");
        }
    }
}