LifeManager.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class LifeManager : MonoBehaviour
{
    //public int startingLives; // How many lives the player starts with
    private int lifeCounter; // How many lives the player has
    private Text theText; // Reference to the Text component of the object
    public GameObject gameOverScreen; // Reference to the game over screen object
    public PlayerController player; // Reference to the player
    private bool isGameOver = false; // To track if the game is over

    public string mainMenu; // Reference to the main menu scene name

    public float waitAfterGameOver;// Time to wait after the game over screen is activated

    // Start is called before the first frame update
    void Start()
    {
        theText = GetComponent<Text>();// Get the Text component
        lifeCounter = PlayerPrefs.GetInt("PlayerCurrentLives"); // Get the player's lives from the PlayerPrefs
        theText.text = "Lives: " + lifeCounter; // Set the player's lives text
        player = FindObjectOfType<PlayerController>(); // Find the player
    }

    // Update is called once per frame
    void Update()
    {
        if (lifeCounter <= 0) // If the player's lives are less than 0
        {

            gameOverScreen.SetActive(true); // Activate the game over screen

            player.gameObject.SetActive(false); // Deactivate the player next i to the game over screen

            Debug.Log("isGameOver: " + isGameOver);// Add this line to check if isGameOver is being called
            isGameOver = true; // Set the game over flag
            Debug.Log("isGameOver: " + isGameOver);// Add this line to check if isGameOver is being called





        }
        theText.text = "x  " + lifeCounter; // Update the player's lives text

        if(gameOverScreen.activeSelf) // If the game over screen is active
        {
            waitAfterGameOver -= Time.deltaTime; // Subtract Time.deltaTime from waitAfterGameOver

            if(waitAfterGameOver <= 0) // If waitAfterGameOver is less than or equal to 0
            {
                SceneManager.LoadScene(mainMenu); // Load the main menu
            }
        }
    }

    public void AddLife() // Add a life
    {


        if (!isGameOver) // Only add lives if the game isn't over
        {
            lifeCounter++; // Add a life
            PlayerPrefs.SetInt("PlayerCurrentLives", lifeCounter); // Set the player's lives in the PlayerPrefs
        }
    }
    // Take a life when the player dies currently taking  2 lives upon the first death.

    public void TakeLife() // Take a life when the player dies currently taking  2 lives upon the first death.
    {
        Debug.Log("lifeCounter -= 1 is called"); // Add this line to check if lifeCounter -= 1 is being called
        if (!isGameOver) // Only take a life if the game isn't over
        {
            lifeCounter--; // Take a life
            PlayerPrefs.SetInt("PlayerCurrentLives", lifeCounter); // Set the player's lives in the PlayerPrefs
            Debug.Log("lifeCounter -= 1 is called"); // Add this line to check if lifeCounter -= 1 is being called
        }
    }
}