State/ToggleStateMonobehaviour.cs

using System;
using UnityEngine;

namespace Syntriax.Modules.ToggleState
{
    public class ToggleStateMonobehaviour : MonoBehaviour, IToggleState
    {
        private bool _toggled = true;
        public bool Toggled
        {
            get => _toggled;
            set
            {
                bool oldValue = _toggled;

                _toggled = value;

                if (oldValue = !value)
                    OnToggleStateChanged?.Invoke(value);
            }
        }

        public Action<bool> OnToggleStateChanged { get; set; } = null;
    }
}