// This modifies both decks. Must be called withn the deckLock.
private void ShuffleDiscard()
{
Console.WriteLine($"{DateTime.Now}:Deck empty, reshuffling.");
// pull cards out out of the discard in a random order, and insert into the draw pile.
while (discardPile.Count != 0)
{
int index = randGen.Next(0, discardPile.Count - 1);
ConceptCard card = discardPile [index];
drawPile.Enqueue(card);
discardPile.RemoveAt(index);
}
}
public static void SendCardGraphicResponse(HttpListenerResponse response, ConceptCard card)
{
response.AddHeader("Cache-Control", "no-transform, public, max-age=900");
response.AddHeader("Etag", card.GetHashCode().ToString());
Console.WriteLine($"{DateTime.Now}:Sending image of card:{card.id}");
// Pull the image out of the card in memory and send it down.
response.ContentLength64 = card.CardImage.Length;
System.IO.Stream output = response.OutputStream;
output.Write(card.CardImage, 0, card.CardImage.Length);
// You must close the output stream.
output.Close();
}
public void DiscardCard(int cardId)
{
if (cardsInUse.Where(p => p.id == cardId).Count() == 0)
{
Console.WriteLine($"{DateTime.Now}:Attempt to discard card {cardId} which is not in use.");
return;
}
Console.WriteLine($"{DateTime.Now}:Card {cardId} discarded.");
lock (deckLock)
{
ConceptCard chosenCard = cardsInUse.Where(p => p.id == cardId).First();
discardPile.Add(chosenCard);
cardsInUse.Remove(chosenCard);
}
}
public static void TestCardShuffling()
{
List <ConceptCard> parsedCards = new List <ConceptCard>();
for (int i = 0; i < 100; i++)
{
parsedCards.Add(CreateTestCard(i));
}
ConceptDeck deck = new ConceptDeck(parsedCards, randGen);
for (int i = 0; i < 101; i++)
{
ConceptCard drawn = deck.DrawCard();
deck.DiscardCard(drawn.id);
}
Console.WriteLine(deck.ToString());
}
private static void ProcessRequest(object contextArg)
{
HttpListenerContext context = contextArg as HttpListenerContext;
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
// read the first part of the query string. If it's the name of a deck, then find the appopriate deck for use.
// should be exactly two or three segments in the URI.
// Valid items:
// / xbox/
// / xbox/ [filename]
// / xbox/play?action=draw
// / xbox/play?action=discard
if ((request.Url.Segments.Length < 2) || (request.Url.Segments.Length > 3))
{
// 404 it.
ResponseUtils.SendTextResponse(response, "Invalid URL.");
return;
}
// read the deck name segment and trim the forward slash.
string deckName = request.Url.Segments[1];
deckName = deckName.Substring(0, deckName.Length - 1);
if (!decks.ContainsKey(deckName))
{
// 404 it.
ResponseUtils.SendTextResponse(response, "Invalid deck name.");
return;
}
// ConceptDeck deck = decks[request.Url.Segments[1]];
ConceptDeck deck = decks[deckName];
string cookieName = $"{deckName}_cardid";
try
{
NameValueCollection queryParams = ResponseUtils.ParseQueryString(request.Url.Query);
// If it doesn't end in a /, it indicates a file.
if (queryParams.Count == 0 && !request.Url.LocalPath.EndsWith("/"))
{
if (customCardMatch.IsMatch(request.Url.LocalPath))
{
// the card images are served from memory. Isolate the card number and pass along the card.
MatchCollection matches = numberMatch.Matches(request.Url.Segments[2]);
ResponseUtils.SendCardGraphicResponse(response, deck.GetCardById(Int32.Parse(matches[0].Value)));
}
else
{
// return whatever file is asked for, if it's present.
ResponseUtils.SendFileResponse(fileDirectory + request.Url.Segments[2], response);
}
return;
}
// If it does end in a /, it's the root of a deck. Perform a default first behavior.
if (queryParams.Count == 0 && (request.Url.LocalPath.Equals("") || request.Url.LocalPath.EndsWith("/")))
{
int currentCard = 0;
ConceptCard card;
if (context.Request.Cookies != null &&
context.Request.Cookies[cookieName] != null &&
Int32.TryParse(context.Request.Cookies[cookieName].Value, out currentCard))
{
// If the user already has a card, and it's not expired,
// display to them the one they have.
card = deck.GetCardById(currentCard);
if (!card.IsExpired())
{
card.RefreshExpiry();
ResponseUtils.SendTemplateResponse(response, cookieName, card);
return;
}
}
// Otherwise, it's first use--draw a card.
card = deck.DrawCard();
ResponseUtils.SendTemplateResponse(response, cookieName, card);
return;
}
// ?action=draw
if (request.Url.LocalPath.EndsWith("/play") && queryParams["action"] == "draw")
{
int currentCard = 0;
if (context.Request.Cookies != null &&
context.Request.Cookies[cookieName] != null &&
Int32.TryParse(context.Request.Cookies[cookieName].Value, out currentCard))
{
deck.DiscardCard(currentCard);
}
ConceptCard card = deck.DrawCard();
ResponseUtils.SendTemplateResponse(response, cookieName, card);
return;
}
// ?action=discard
if (request.Url.LocalPath.EndsWith("/play") && queryParams["action"] == "discard")
{
int currentCard = 0;
if (context.Request.Cookies != null &&
context.Request.Cookies[cookieName] != null &&
Int32.TryParse(context.Request.Cookies[cookieName].Value, out currentCard))
{
deck.DiscardCard(currentCard);
}
ResponseUtils.SendTemplateResponse(response, cookieName, "No card present. Select draw to draw a card.");
return;
}
// ?action=refresh
if (request.Url.LocalPath.EndsWith("/play") && queryParams["action"] == "refresh")
{
int currentCard = 0;
if (Int32.TryParse(context.Request.Cookies[cookieName].Value, out currentCard))
{
ConceptCard card = deck.GetCardById(currentCard);
if (!card.IsExpired())
{
card.RefreshExpiry();
}
}
ResponseUtils.SendTextResponse(response, "Refresh");
return;
}
}
catch (Exception e)
{
Console.WriteLine(e);
return;
// response.StatusCode = (int) HttpStatusCode.BadRequest;
// ResponseUtils.SendTextResponse (response, "Bad Request:" + e.Message);
}
ResponseUtils.SendTextResponse(response, "No matching handler!");
}
public static void SendTemplateResponse(HttpListenerResponse response, string cookieName, ConceptCard card)
{
// Looks like we need to write the card info in the template instead, and
// provide a way for the later call to get access to it.
response.AppendCookie(new Cookie(cookieName, card.id.ToString()));
string returnFile = templateFile;
if (card != null)
{
returnFile = SetRefresh(true, returnFile);
returnFile = returnFile.Replace("__TEMPLATE_ITEM_1__", $"<IMG SRC = \"CustomCard_{card.id}.jpg\" ID=\"bg\">");
}
else
{
returnFile = SetRefresh(false, returnFile);
returnFile = returnFile.Replace("__TEMPLATE_ITEM_1__", "The draw pile is empty. Wait for another player to discard a card!");
}
Console.WriteLine($"{DateTime.Now}:Sending template with for card:" + ((card != null) ? card.id.ToString() : "no_card"));
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(returnFile);
// Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length;
System.IO.Stream output = response.OutputStream;
output.Write(buffer, 0, buffer.Length);
// You must close the output stream.
output.Close();
}
