public static void ShowPlayableHands(StrategyBase strategy, Canvas canvas, string savedImageName, string displayText)
{
// clear the screen
canvas.Children.Clear();
Color hitColor = Colors.LightGreen,
standColor = Color.FromRgb(252, 44, 44),
doubleColor = Colors.Yellow,
splitColor = Colors.MediumPurple;
AddInformationalText(displayText, canvas);
// display a grid for non-paired hands without an ace. One column for each possible dealer upcard
AddColorBox(Colors.White, "", 0, 0, canvas);
int x = 1, y = 0;
foreach (var upcardRank in Card.ListOfRanks)
{
// strategy for 10, J, Q, and K are the same, so skip some of those
if (upcardRank == Card.Ranks.Jack || upcardRank == Card.Ranks.Queen || upcardRank == Card.Ranks.King)
{
continue;
}
Card dealerUpcard = new Card(upcardRank, Card.Suits.Diamonds);
string upcardRankName = Card.RankText(upcardRank);
AddColorBox(Colors.White, upcardRankName, x, 0, canvas);
y = 1;
for (int hardTotal = 20; hardTotal > 4; hardTotal--)
{
// add a white box with the total
AddColorBox(Colors.White, hardTotal.ToString(), 0, y, canvas);
// build player hand
Hand playerHand = new Hand();
// divide by 2 if it's even, else add one and divide by two
int firstCardRank = ((hardTotal % 2) != 0) ? (hardTotal + 1) / 2 : hardTotal / 2;
int secondCardRank = hardTotal - firstCardRank;
if (firstCardRank == secondCardRank)
{
firstCardRank++;
secondCardRank--;
if (firstCardRank == 11)
{
// hard 20 needs to be three cards, so in this case 9, 4, 7
firstCardRank = 4;
playerHand.AddCard(new Card(Card.Ranks.Seven, Card.Suits.Clubs));
}
}
playerHand.AddCard(new Card((Card.Ranks)firstCardRank, Card.Suits.Diamonds));
playerHand.AddCard(new Card((Card.Ranks)secondCardRank, Card.Suits.Hearts));
// get strategy and display
var action = strategy.GetActionForHand(playerHand, dealerUpcard);
switch (action)
{
case ActionToTake.Hit:
AddColorBox(hitColor, "H", x, y, canvas);
break;
case ActionToTake.Stand:
AddColorBox(standColor, "S", x, y, canvas);
break;
case ActionToTake.Double:
AddColorBox(doubleColor, "D", x, y, canvas);
break;
}
y++;
}
x++;
}
// and another for hands with an ace
// display a grid for hands without an ace. One column for each possible dealer upcard
const int leftColumnForAces = 12;
AddColorBox(Colors.White, "", leftColumnForAces, 0, canvas);
x = leftColumnForAces + 1;
foreach (var upcardRank in Card.ListOfRanks)
{
// strategy for 10, J, Q, and K are the same, so skip some of those
if (upcardRank == Card.Ranks.Jack || upcardRank == Card.Ranks.Queen || upcardRank == Card.Ranks.King)
{
continue;
}
string upcardRankName = Card.RankText(upcardRank);
Card dealerUpcard = new Card(upcardRank, Card.Suits.Diamonds);
AddColorBox(Colors.White, upcardRankName, x, 0, canvas);
y = 1;
// we don't start with Ace, because that would be AA, which is handled in the pair zone
// we also don't start with 10, since that's blackjack. So 9 is our starting point
// only need 2 through 9, since a-a is in the pairs table, and a-10 is blackjack
for (var otherCard = Card.Ranks.Nine; otherCard >= Card.Ranks.Two; otherCard--)
{
// add a white box with the player hand: "A-x"
string otherCardRank = Card.RankText(otherCard);
AddColorBox(Colors.White, "A-" + otherCardRank, leftColumnForAces, y, canvas);
// build player hand
Hand playerHand = new Hand();
// first card is an ace, second card is looped over
playerHand.AddCard(new Card(Card.Ranks.Ace, Card.Suits.Hearts)); // ace of hearts
playerHand.AddCard(new Card(otherCard, Card.Suits.Spades));
// get strategy and display
var action = strategy.GetActionForHand(playerHand, dealerUpcard);
switch (action)
{
case ActionToTake.Hit:
AddColorBox(hitColor, "H", x, y, canvas);
break;
case ActionToTake.Stand:
AddColorBox(standColor, "S", x, y, canvas);
break;
case ActionToTake.Double:
AddColorBox(doubleColor, "D", x, y, canvas);
break;
}
y++;
}
x++;
}
// finally, a grid for pairs
int startY = y + 1;
AddColorBox(Colors.White, "", leftColumnForAces, startY, canvas);
x = leftColumnForAces + 1;
foreach (var upcardRank in Card.ListOfRanks)
{
// strategy for 10, J, Q, and K are the same, so skip some of those
if (upcardRank == Card.Ranks.Jack || upcardRank == Card.Ranks.Queen || upcardRank == Card.Ranks.King)
{
continue;
}
string upcardRankName = Card.RankText(upcardRank);
Card dealerUpcard = new Card(upcardRank, Card.Suits.Diamonds);
AddColorBox(Colors.White, upcardRankName, x, startY, canvas);
y = startY + 1;
for (var pairedRank = Card.Ranks.Ace; pairedRank >= Card.Ranks.Two; pairedRank--)
{
// strategy for 10, J, Q, and K are the same, so skip some of those
if (pairedRank == Card.Ranks.Jack || pairedRank == Card.Ranks.Queen || pairedRank == Card.Ranks.King)
{
continue;
}
// add a white box with the player hand: "x-x"
string pairedCardRank = Card.RankText(pairedRank);
AddColorBox(Colors.White, pairedCardRank + "-" + pairedCardRank, leftColumnForAces, y, canvas);
// build player hand
Hand playerHand = new Hand();
playerHand.AddCard(new Card(pairedRank, Card.Suits.Hearts)); // X of hearts
playerHand.AddCard(new Card(pairedRank, Card.Suits.Spades)); // X of spades
// get strategy and display
var action = strategy.GetActionForHand(playerHand, dealerUpcard);
switch (action)
{
case ActionToTake.Hit:
AddColorBox(hitColor, "H", x, y, canvas);
break;
case ActionToTake.Stand:
AddColorBox(standColor, "S", x, y, canvas);
break;
case ActionToTake.Double:
AddColorBox(doubleColor, "D", x, y, canvas);
break;
case ActionToTake.Split:
AddColorBox(splitColor, "P", x, y, canvas);
break;
}
y++;
}
x++;
}
// now that's it's drawn, save an image?
if (!string.IsNullOrEmpty(savedImageName))
{
SaveCanvasToPng(canvas, savedImageName);
}
}
