public Deck()
{
//// Book solution
//for (int suitVal = 0; suitVal < 4; suitVal++)
//{
// for (int rankVal = 1; rankVal < 14; rankVal++)
// {
// cards.Add(new Card((Suit)suitVal, (Rank)rankVal));
// }
//}
// Loop through all the Suit and Rank enum values
foreach (Suit suit in Enum.GetValues(typeof(Suit)))
{
foreach (Rank rank in Enum.GetValues(typeof(Rank)))
{
cards.Add(new Card(suit, rank));
}
}
}
/// <summary>
/// Shuffles all the cards in this deck.
/// </summary>
public void Shuffle()
{
// Create a temporary collection to shuffle the cards into.
Cards newDeck = new Cards();
// Create an array to track which elements of the temporary array already have
// a card assigned to them.
bool[] assigned = new bool[52];
// Use a Random class to select the positions to shuffle the cards into.
Random sourceGen = new Random();
// Shuffle each card in the cards field into the temporary collection.
for (int i = 0; i < 52; i++)
{
int sourceCard = 0;
bool foundCard = false;
while (foundCard == false)
{
// Generate random numbers from 0 - 51 until we find a position in the
// temporary array that doesn't have a card assigned to it.
sourceCard = sourceGen.Next(52);
if (assigned[sourceCard] == false)
{
foundCard = true;
}
}
//Set the flag that an empty position was found, and assign the current card
// to it.
assigned[sourceCard] = true;
newDeck.Add(cards[sourceCard]);
}
// Copy the shuffled deck back into the same instance of the cards field.
// Note that cards = newDeck would create a new instance in cards, which could
// cause problems if some other code was holding a reference to the original
// instance of cards.
newDeck.CopyTo(cards);
}
public void Shuffle()
{
Cards newDeck = new Cards();
bool[] assigned = new bool[52];
Random sourceGen = new Random();
for (int i = 0; i < 52; i++)
{
int sourceCard = 0;
bool foundCard = false;
while (foundCard == false)
{
sourceCard = sourceGen.Next(52);
if (assigned[sourceCard] == false)
{
foundCard = true;
}
}
assigned[sourceCard] = true;
newDeck.Add(cards[sourceCard]);
}
newDeck.CopyTo(cards);
}
