i3e-asg2/Assets/Scripts/GameManager.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GameManager : MonoBehaviour
{
    public static GameManager instance;

    void Awake()
    {
        if (instance == null)
        {
            instance = this;
            DontDestroyOnLoad(gameObject);
        }
        else if (instance != null && instance != this)
        {
            Destroy(gameObject);
        }
    }
    public int playerHealth = 100;
}