Deuces.DotNet

A C# port of deuces poker evaluation library

[ 2 ❤ ] , [ 2 ♠ ]

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Installation

This package is distributed via Nuget and can be downloaded via Nuget Packet Manager or running dotnet add package Deuces.DotNet

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Usage

Deces.DotNet is ported to C# so that it can be used the same as with python with a C# naming conventions:

using Deuces;

int card = Card.New("Qh");

int[] board = {
    Card.New("Ah"),
    Card.New("Kd"),
    Card.New("Jc"),
};
int[] hand =
{
    Card.New("Qs"),
    Card.New("Th")
};

Console.WriteLine(Card.IntsToPrettyStr(hand));
// [ Q ♠ ],[ T ♥ ]

var deck = new Deck();
var board = deck.Draw(5);
var hand = deck.Draw(2);

var evaluator = new Evaluator();
var rank = evaluator.Evaluate(hand, board);
Console.WriteLine(rank);
// 6330

Console.WriteLine(Card.IntsToPrettyStr(board));
// [ 4 ♣ ] , [ A ♠ ] , [ 5 ♦ ] , [ K ♣ ] , [ 2 ♠ ]
Console.WriteLine(Card.IntsToPrettyStr(hand));
// [ 6 ♣ ] , [ 7 ❤ ] 

var rankClass = evaluator.GetRankClass(rank);
var classString = evaluator.ClassToString(rankClass);

Console.WriteLine(rankClass);
// 9
Console.WriteLine(classString);
// High Card

By default, the pretty string methods returns a colored string. If the colors aren't showing up correctly in your console, you can disable card coloring by setting Card.UseColoredCards = false;

int[] cards = {
    Card.New("As"),
    Card.New("Kh"),
    Card.New("Qd"),
    Card.New("Jc"),
};

Console.WriteLine(Card.IntsToPrettyStr(cards));

Card.UseColoredCards = false;
Console.WriteLine(Card.IntsToPrettyStr(cards));

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Performance

Performance of Deuces.DotNet is measured with BenchmarkDotNet.

BenchmarkDotNet=v0.13.5, OS=Windows 11 (10.0.22621.1265/22H2/2022Update/SunValley2)
AMD Ryzen 9 3900X, 1 CPU, 24 logical and 12 physical cores
.NET SDK=7.0.200
  [Host] : .NET 7.0.3 (7.0.323.6910), X64 RyuJIT AVX2

Job=MediumRun  Toolchain=InProcessNoEmitToolchain  IterationCount=15  
LaunchCount=2  WarmupCount=10  

Method	Mean	Error	StdDev
EvaluateFiveFlush	28.14 ns	0.196 ns	0.288 ns
EvaluateFiveNonFlush	15.13 ns	0.099 ns	0.136 ns
EvaluateSixFlush	122.20 ns	0.563 ns	0.842 ns
EvaluateSixNonFlush	108.66 ns	0.576 ns	0.862 ns
EvaluateSevenFlush	924.67 ns	1.362 ns	1.909 ns
EvaluateSevenNonFlush	873.11 ns	3.955 ns	5.798 ns

To compare against python implementation, here's the performance with Deuces:

As a conclusion:

Method	Avg	Evaluations per second
Deuces 5	1 000 ns	909 137
Deuces.DotNet 5	22 ns	46 221 400
Deuces 6	5 000 ns	185 185
Deuces.DotNet 6	115 ns	8 663 259
Deuces 7	18 000 ns	56 179
Deuces.DotNet 7	899 ns	1 112 483

Creating a LookUp table taks about 0.0002883 Seconds

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License

MIT License

Copyright (c) 2023 NutCr4cker12

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.