// Raycast version of OnMouseOver
private void MouseOverItem()
{
Collider2D collider = Physics2D.OverlapPoint(Camera.main.ScreenToWorldPoint(Input.mousePosition), 1 << LayerMask.NameToLayer("Items"));
if (collider == null)
{
if (selectedItem != null)
{
selectedItem.MouseExit();
selectedItem = null;
}
return;
}
selectedItem = collider.GetComponent <AbstractItem>();
selectedItem.MouseOver();
}