Item.cs

using UnityEngine;

public class Item : Interactable
{
    [SerializeField] private ItemData m_itemData;

    protected override void OnInteracted(GameObject interactor)
    {
        base.OnInteracted(interactor);

        Inventory inv = interactor.GetComponent<Inventory>();
        if (inv != null)
            OnPicked(inv);
        else
            Debug.LogWarning("Failed to pick item because the picker doesn't have a Inventory component.");
    }

    protected virtual void OnPicked(Inventory pickerInv)
    {
        if (pickerInv.AddItem(m_itemData))
        {
            Destroy(gameObject);
        }
        else
        {
            Debug.LogWarning("Cannot pick item, AddItem returned false. (Inventory full?)");
        }
    }
}