private void OnMouseDrag()
{
// Make the item visible and large for the player
collectible.AppearInInventory();
// Move the parent transform to whereever the player drags to, smoothly.
mouseDrag = true;
mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector3 dragPosition = new Vector3(mousePosition.x - smoothPosition.x, 0f, mousePosition.z - smoothPosition.z);
parent.transform.position = dragPosition;
}
