ObjectToggle

using UnityEngine;
using UnityEngine.Events;

public class ObjectToggle : MonoBehaviour
{
    public KeyCode ToggleKey;

    public GameObject toggleTarget;

    private bool IsToggledOff;

    public UnityEvent ToggledOn;
    public UnityEvent ToggledOff;

    private void Start()
    {
        if (!toggleTarget)
        {
            toggleTarget = transform.GetChild(0).gameObject;
        }
    }

    public void Toggle()
    {
        if (!toggleTarget)
            return;

        toggleTarget.SetActive(IsToggledOff);
        IsToggledOff = !IsToggledOff;
        if (IsToggledOff) ToggledOn?.Invoke();
        else ToggledOff?.Invoke();
    }

    public void Toggle(bool newState)
    {
        IsToggledOff = !newState;
        Toggle();
    }

    void Update()
    {
        if (Input.GetKeyDown(ToggleKey))
        {
            Toggle();
        }
    }
}