Gamen3/Assets/Scripts/Procedural Generation/Data/UpdatableData.cs

using UnityEditor;
using UnityEngine;

public class UpdatableData : ScriptableObject
{
    public event System.Action OnValuesUpdated;
    public bool autoUpdate;

    protected virtual void OnValidate()
    {
        if (autoUpdate)
        {
            EditorApplication.update += NotifyOfUpdatedValues;
        }
    }

    public void NotifyOfUpdatedValues()
    {
        EditorApplication.update -= NotifyOfUpdatedValues;
        if (OnValuesUpdated != null)
        {
            OnValuesUpdated();
        }
    }
}