/**
* Method for copying cards into another Cards instance, like for Deck.Shuffle()
* Assumes that source and target collections are the same size
*/
public void CopyTo(Cards target)
{
for (int index = 0; index < this.Count; index++)
{
target[index] = this[index];
}
}
public void Shuffle()
{
//The temporary deck
Cards shuffledDeck = new Cards();
//Whether the card at index has already been added to the temporary deck
bool[] assigned = new bool[m_cards.Count];
Random r = new Random();
for (int index = 0; index < m_cards.Count; index++)
{
int picked = -1;
bool available = false;
//Loop until an available card index is picked,
// inefficient but simple and not problematic due to limited size of range
while (!available)
{
//Get a random number in the range [0,SIZE_OF_DECK)
picked = r.Next(SIZE_OF_DECK);
available = !assigned[picked];
}
assigned[picked] = true;
shuffledDeck.Add(m_cards[picked]);
}
//replace the ordered deck with the shuffled deck
shuffledDeck.CopyTo(m_cards);
}