BalanceManager.cs

using System.Runtime.CompilerServices;
using TMPro;
using UnityEngine;

public class BalanceManager : MonoBehaviour
{
    // Attach to the balance game object
    private TextMeshProUGUI balanceTextUI;
    [HideInInspector] public float balanceAmount = 0f;

    private const float DEFAULT_BALANCE = 10f;
    private const string BALANCE_KEY = "Balance";

    public GameObject insufficientBalancePopUp; // Integrate popups using your UI handling system via UIManager scriptê

    private void Start()
    {
        balanceTextUI = GetComponentInChildren<TextMeshProUGUI>();
        RetrieveBalance();
    }

    public void UpdateBalanceUI()
    {
        balanceTextUI.text = "Balance: " + balanceAmount.ToString() + "$";
    }

    public void AddBalance(float amount)
    {
        balanceAmount += amount;
        SaveBalance();
        UpdateBalanceUI();
    }

    private void SaveBalance()
    {
        PlayerPrefs.SetFloat(BALANCE_KEY, balanceAmount);
        PlayerPrefs.Save();
    }

    private void RetrieveBalance()
    {
        balanceAmount = PlayerPrefs.GetFloat(BALANCE_KEY, DEFAULT_BALANCE);
        UpdateBalanceUI();
    }

    public bool isSufficient(float amount)
    {
        return balanceAmount + amount >= 0;
    }

    public void ResetBalance()
    {
        PlayerPrefs.DeleteKey(BALANCE_KEY);
        RetrieveBalance();
        Debug.Log($"ResetBalance{balanceAmount}");
    }

    // Testing
    public void CleanMemory()
    {
        PlayerPrefs.DeleteAll();
        RetrieveBalance();
    }
}