public HandCompareResult Compare(Hand firstHand, Hand secondHand)
{
var firstRank = _evaluator.Evaluate(firstHand);
var secondRank = _evaluator.Evaluate(secondHand);
if (firstRank == secondRank)
{
return(CompareSameRanks(firstRank, firstHand, secondHand));
}
else
{
return(firstRank > secondRank
? HandCompareResult.FirstHandWins
: HandCompareResult.SecondHandWins);
}
}
/// <summary>
/// Run the simulatiuon with a list of player and a sorter with all the cards
/// </summary>
/// <param name="players"></param>
/// <param name="sorter"></param>
public IEnumerable <Player> Run(IEnumerable <Player> players, IEnumerable <Hand[]> sorter)
{
// local function to determine who is the winner of each game
Player EachGameWinner(Hand[] hands)
{
// each player receives a hand
var game = players.Select((p, i) => { p.Hand = hands[i]; return(p); });
// evaluate hand rank on individual player by using HandCategoriserChain with Chain of Responsibility Pattern
game = game.Select(p => { p.Hand = _handEvaluator.Evaluate(p.Hand); return(p); });
// evaluate the winner
return(_winnerEvaluator.ShowWinner(game));
}
var sorterArray = sorter as Hand[][] ?? sorter.ToArray();
// sorter gives hands to each game which will return a winner or null when it is tie.
var winners = sorterArray.Select(EachGameWinner)
.Where(w => w != null);
// winning count on total and individual player
var totalGameHasWinner = winners.Sum(w =>
{
w.WinCount++;
return(1);
});
// total number of tie if it is required
var tie = sorterArray.Length - totalGameHasWinner;
return(players);
}
public void Should_GetCorrectRankAndHighCard_With_TestHandRankData(string cards, Rank expectedRank, Value expectedValue)
{
var hand = cards.Split(" ").StringToHand();
hand = _handEvaluator.Evaluate(hand);
Assert.Equal(expectedRank, hand.Rank);
Assert.Equal(expectedValue, hand.HighCard?.Value ?? Value.None);
}
static void Main(string[] args)
{
Deck deck = new Deck();
deck.Shuffle();
Hand hand = new Hand();
for (int i = 0; i < 5; i++)
{
Card card = deck.Deal();
hand.PickUp(card);
}
Console.WriteLine(hand);
IHandEvaluatorChainFactory factory = new HandEvaluatorChainFactory();
IHandEvaluator chain = factory.Create();
Console.WriteLine($"Hand evaluation of {hand} is {chain.Evaluate(hand)}");
}
