/// <summary>
/// Notifies this storage that the given slot is free. The given slot can
/// then be allocated to store a new tile, i.e., it can be returned by a
// subsequent call to newSlot.
/// </summary>
/// <param name="t">a slot that is no longer in use</param>
public void DeleteSlot(Slot t)
{
m_freeSlots.AddLast(t);
}
protected void AddSlot(int i, Slot slot)
{
m_allSlots[i] = slot;
m_freeSlots.AddLast(slot);
}