station_obscurum_unity/Assets/Scripts/Interactable/ItemSelector.cs

using UnityEngine;
namespace Item
{
    public class ItemSelector : MonoBehaviour
    {
        public static ItemSelector instance;

        [SerializeField] private Camera cam;

        [SerializeField] private LayerMask mask;

        [SerializeField] private float range = 1;

        public InteractableItem Selected { get; private set; }

        // Start is called before the first frame update
        private void Start()
        {
            instance = this;
        }

        // Update is called once per frame
        private void Update()
        {
        }

        private void FixedUpdate()
        {
            var ray = cam.ScreenPointToRay(Input.mousePosition);
            RaycastHit hit;

            if (Physics.Raycast(ray, out hit, range, mask))
            {
                if (Selected != null || hit.transform.gameObject == null) Selected.Disable();

                Selected = hit.transform.gameObject.GetComponent<InteractableItem>();
                Selected.Enable();
                print(Selected);
            }
            else
            {
                if (Selected != null) Selected.Disable();
            }
        }
    }
}