IdentifierUtility.cs

using System;
using UnityEngine;
 
namespace SCG.SpaceAdMobile
{
    public abstract class IdentifierUtility : MonoBehaviour
    {
        [field:SerializeField]
        [field: Tooltip("The unique ID of the object.")]
        public virtual string Id { get; protected set; }
 
#if UNITY_EDITOR
        protected virtual void Reset() => OnValidate();

        protected virtual void OnValidate()
        {
            // If the object is part of a prefab that is not instantiated in a scene, skip ID generation
            if (UnityEditor.PrefabUtility.IsPartOfPrefabAsset(gameObject))
                return;
 
            // Sets the ID to a new GUID if it is not already set.
            if (string.IsNullOrEmpty(Id))
            {
                Id = Guid.NewGuid().ToString();
            }
        }
#endif
    }
}