/// <summary>
/// Compares which hand of two-pair is better
/// </summary>
/// <param name="player1"></param>
/// <param name="player2"></param>
/// <returns></returns>
private PokerPlayer EvaluateTwoPair(PokerPlayer player1, PokerPlayer player2)
{
var player1CardsGrouped = player1.HandOfCards.Cards.GroupBy(o => o.CardValue).OrderByDescending(group => group.Count());
var player1Pairs = player1CardsGrouped.Where(group => group.Count() == 2);
var player1FirstPairValue = player1Pairs.First().Key;
var player1SecondPairValue = player1Pairs.Last().Key;
var player2CardsGrouped = player2.HandOfCards.Cards.GroupBy(o => o.CardValue).OrderByDescending(group => group.Count());
var player2Pairs = player2CardsGrouped.Where(group => group.Count() == 2);
var player2FirstPairValue = player2Pairs.First().Key;
var player2SecondPairValue = player2Pairs.Last().Key;
// Check if the high pairs are not equal
if (player1FirstPairValue > player2FirstPairValue)
{
return(player1);
}
else if (player1FirstPairValue < player2FirstPairValue)
{
return(player2);
}
// The higher value pairs were equal, have to check the second pair
if (player1SecondPairValue > player2SecondPairValue)
{
return(player1);
}
else if (player1SecondPairValue < player2SecondPairValue)
{
return(player2);
}
// The second pair were also equal, have to check the high card
var player1HighCard = player1CardsGrouped.Where(group => group.Count() == 1).First().Key;
var player2HighCard = player2CardsGrouped.Where(group => group.Count() == 1).First().Key;
if (player1HighCard > player2HighCard)
{
return(player1);
}
else if (player1HighCard < player2HighCard)
{
return(player2);
}
// High card is the same so no winner
return(null);
}
/// <summary>
/// Compare which hand with one pair is better
/// </summary>
/// <param name="player1"></param>
/// <param name="player2"></param>
/// <returns></returns>
private PokerPlayer EvaluateOnePair(PokerPlayer player1, PokerPlayer player2)
{
var player1Value = player1.HandOfCards.Cards.GroupBy(o => o.CardValue).Where(group => group.Count() == 2).OrderByDescending(group => group.Count()).First().Key;
var player2Value = player2.HandOfCards.Cards.GroupBy(o => o.CardValue).Where(group => group.Count() == 2).OrderByDescending(group => group.Count()).First().Key;
// Check if one of the pairs is better
if (player1Value > player2Value)
{
return(player1);
}
else if (player1Value < player2Value)
{
return(player2);
}
// Pairs were the same, have to check the high card
return(EvaluateHighCard(player1, player2));
}
public PokerRank(PokerPlayer player1, PokerPlayer player2)
{
this.player1 = player1;
this.player2 = player2;
}
public static string DisplayHand(this PokerPlayer player)
{
var stringBuilder = new StringBuilder();
player.Cards.ForEach(card =>
{
switch (card.Value)
{
case CardValue.Two:
stringBuilder.Append("2");
break;
case CardValue.Three:
stringBuilder.Append("3");
break;
case CardValue.Four:
stringBuilder.Append("4");
break;
case CardValue.Five:
stringBuilder.Append("5");
break;
case CardValue.Six:
stringBuilder.Append("6");
break;
case CardValue.Seven:
stringBuilder.Append("7");
break;
case CardValue.Eight:
stringBuilder.Append("8");
break;
case CardValue.Nine:
stringBuilder.Append("9");
break;
case CardValue.Ten:
stringBuilder.Append("T");
break;
case CardValue.Jack:
stringBuilder.Append("J");
break;
case CardValue.Queen:
stringBuilder.Append("Q");
break;
case CardValue.King:
stringBuilder.Append("K");
break;
case CardValue.Ace:
stringBuilder.Append("A");
break;
default:
stringBuilder.Append(string.Empty);
break;
}
switch (card.Suit)
{
case Suit.Clubs:
stringBuilder.Append("C");
break;
case Suit.Diamonds:
stringBuilder.Append("D");
break;
case Suit.Hearts:
stringBuilder.Append("H");
break;
case Suit.Spades:
stringBuilder.Append("S");
break;
default:
stringBuilder.Append(string.Empty);
break;
}
stringBuilder.Append(" ");
});
return(stringBuilder.ToString());
}
public PokerRank(PokerPlayer player1, PokerPlayer player2)
{
this.player1 = player1;
this.player2 = player2;
}
