Utils/Runtime/EventManager.cs

using UnityEngine;

namespace Utils
{
    public class EventManager : MonoBehaviour
    {
        public delegate void UpdateAction();
        public static event UpdateAction OnUpdated;

        public delegate void FixedUpdateAction();
        public static event FixedUpdateAction OnFixedUpdated;

        public delegate void LateUpdateAction();
        public static event LateUpdateAction OnLateUpdated;

        private void Update()
        {
            OnUpdated?.Invoke();
        }

        private void FixedUpdate()
        {
            OnFixedUpdated?.Invoke();
        }

        private void LateUpdate()
        {
            OnLateUpdated?.Invoke();
        }

        public static int UpdateLength
        {
            get
            {
                var list = OnUpdated?.GetInvocationList();
                return list?.Length ?? 0;
            }
        }

        public static int FixedUpdateLength
        {
            get
            {
                var list = OnFixedUpdated?.GetInvocationList();
                return list?.Length ?? 0;
            }
        }

        public static int LateUpdateLength
        {
            get
            {
                var list = OnLateUpdated?.GetInvocationList();
                return list?.Length ?? 0;
            }
        }
    }
}