/// <summary>
    /// Sells the placeable and returns some gold to the player.
    /// </summary>
    public void SellPlaceable(Placeable placeableToSell)
    {
        placeableToSell.Sell();
        Player.Instance.Gold += GetSellPrice(placeableToSell);

        // Return to the pool
        PlaceablePool.Instance.ReclaimObject(placeableToSell);
    }