void OnTriggerEnter2D(Collider2D otherCol)
{
Interactable i = otherCol.GetComponent <Interactable>();
if (i != null)
{
currentInteractable = i;
i.AddPrompt();
}
}
//lets an interactable know to put an arrow above it
public void AddPrompt(Interactable i)
{
i.AddPrompt();
}