/// <summary>
/// If the collision is with an interactable object that is allowed to interact,
/// make this object the current focus of the player.
/// </summary>
/// <param name="collider"></param>
public void OnTriggerEnter2D(Collider2D collider)
{
var interactable = collider.GetComponent <IInteractable>();
if (interactable == null || !interactable.IsInteractionAllowed())
{
return;
}
interactableInFocus?.EndInteract();
interactableInFocus = interactable;
interactableInFocus.BeginInteract();
}