merge {deluf:main}: Fix for SebLague#347

Author: VitorA29

Chess-Challenge/Chess-Challenge.csproj

@@ -41,7 +41,10 @@
     <Compile Update="src\Framework\Application\UI\BotBrainCapacityUI.cs">
       <CopyToOutputDirectory>Never</CopyToOutputDirectory>
     </Compile>
-    <Compile Update="src\Evil Bot\EvilBot.cs">
+    <Compile Update="src\EvilBot\EvilBot.cs">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Compile>
+    <Compile Update="src\Stockfish\Stockfish.cs">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Compile>
   </ItemGroup>

Chess-Challenge/src/Framework/Application/Core/ChallengeController.cs

@@ -20,7 +20,8 @@ public enum PlayerType
             Human,
             MyBot,
             EvilBot,
-            LastBot
+            LastBot,
+            Stockfish
         }
 
         // Game state
@@ -57,6 +58,7 @@ public enum PlayerType
         readonly int debugTokenCount;
         readonly StringBuilder pgns;
         long maxMemoryUsed = 0;
+        public bool fastForward;
 
         public ChallengeController()
         {
@@ -213,6 +215,7 @@ ChessPlayer CreatePlayer(PlayerType type)
                 PlayerType.MyBot => new ChessPlayer(new MyBot(), type, GameDurationMilliseconds),
                 PlayerType.EvilBot => new ChessPlayer(new EvilBot(), type, GameDurationMilliseconds),
                 PlayerType.LastBot => new ChessPlayer(LastBot.GetLastBot(), type, GameDurationMilliseconds),
+                PlayerType.Stockfish => new ChessPlayer(new Stockfish(), type, GameDurationMilliseconds),
                 _ => new ChessPlayer(new HumanPlayer(boardUI), type)
             };
         }

Chess-Challenge/src/Framework/Application/Core/Settings.cs

@@ -4,12 +4,12 @@ namespace ChessChallenge.Application
 {
     public static class Settings
     {
-        public const string Version = "1.20";
+        public const string Version = "1.20.x";
 
         // Game settings
         public const int GameDurationMilliseconds = 60 * 1000;
         public const int IncrementMilliseconds = 0 * 1000;
-        public const float MinMoveDelay = 0;
+        public const float MinMoveDelay = 0.01f;
         public static readonly bool RunBotsOnSeparateThread = true;
 
         // Display settings

Chess-Challenge/src/Framework/Application/UI/MenuUI.cs

@@ -33,6 +33,10 @@ public static void DrawButtons(ChallengeController controller)
             {
                 controller.StartNewBotMatch(ChallengeController.PlayerType.MyBot, ChallengeController.PlayerType.LastBot);
             }
+            if (NextButtonInRow("MyBot vs Stockfish", ref buttonPos, spacing, buttonSize))
+            {
+                controller.StartNewBotMatch(ChallengeController.PlayerType.MyBot, ChallengeController.PlayerType.Stockfish);
+            }
 
             // Page buttons
             buttonPos.Y += breakSpacing;

Chess-Challenge/src/Stockfish/Stockfish.cs

@@ -0,0 +1,82 @@
+using ChessChallenge.API;
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Linq.Expressions;
+
+public class Stockfish : IChessBot
+{
+
+    // The name of the stockfish binaries that you downloaded and placed in ...\Chess-Challenge\bin\Debug\net6.0
+    const string STOCKFISH_BINARIES = "stockfish";
+
+    // Adjust this so the time it takes to think is adequate
+    // Adjusting this also have an effect on how strong it will play
+    const string STOCKFISH_DEPTH = "10";
+
+    // Min: 0, Max: 20
+    const string STOCKFISH_SKILL_LEVEL = "20";
+
+    // For best performance, set this equal to the number of CPU cores available.
+    const string STOCKFISH_THREADS = "6";
+
+    public Move Think(Board board, Timer timer)
+    {
+        Move bestMove = Move.NullMove;
+
+        Process stockfish = new Process();
+        stockfish.StartInfo.UseShellExecute = false;
+        stockfish.StartInfo.RedirectStandardOutput = true;
+        stockfish.StartInfo.RedirectStandardInput = true;
+        stockfish.StartInfo.FileName = STOCKFISH_BINARIES;
+        stockfish.OutputDataReceived += (sender, args) =>
+        {
+            /* Example output:
+                Stockfish 16 by the Stockfish developers (see AUTHORS file)
+                info string NNUE evaluation using nn-5af11540bbfe.nnue enabled
+                info depth 1 seldepth 1 multipv 1 score cp 2 nodes 20 nps 20000 hashfull 0 tbhits 0 time 1 pv g1f3
+                info depth 2 seldepth 2 multipv 1 score cp 2 nodes 40 nps 40000 hashfull 0 tbhits 0 time 1 pv g1f3
+                info depth 3 seldepth 2 multipv 1 score cp 16 nodes 70 nps 70000 hashfull 0 tbhits 0 time 1 pv c2c3
+                info depth 4 seldepth 2 multipv 1 score cp 29 nodes 101 nps 101000 hashfull 0 tbhits 0 time 1 pv e2e4
+                info depth 5 seldepth 3 multipv 1 score cp 42 nodes 131 nps 131000 hashfull 0 tbhits 0 time 1 pv e2e4 g8f6
+                info depth 6 seldepth 4 multipv 1 score cp 59 nodes 489 nps 244500 hashfull 0 tbhits 0 time 2 pv g1f3 d7d5 d2d4
+                info depth 7 seldepth 6 multipv 1 score cp 31 nodes 1560 nps 520000 hashfull 1 tbhits 0 time 3 pv e2e4 d7d5 e4d5 d8d5 g1f3
+                info depth 8 seldepth 6 multipv 1 score cp 40 nodes 2105 nps 701666 hashfull 1 tbhits 0 time 3 pv e2e4 d7d5 e4d5 d8d5
+                info depth 9 seldepth 8 multipv 1 score cp 48 nodes 4500 nps 900000 hashfull 1 tbhits 0 time 5 pv e2e4 e7e5 g1f3 g8f6 f3e5 f6e4 d2d4 b8c6
+                info depth 10 seldepth 10 multipv 1 score cp 50 nodes 7548 nps 943500 hashfull 2 tbhits 0 time 8 pv e2e4 e7e5 g1f3 g8f6 b1c3 d7d6 d2d4
+                bestmove e2e4 ponder e7e5
+
+            */
+            if (args.Data.StartsWith("bestmove")) {
+                bestMove = new Move(args.Data.Split(' ')[1], board);
+                stockfish.StandardInput.WriteLine("quit");
+                stockfish.Close();
+            }
+        };
+
+        try
+        {
+            stockfish.Start();
+        }
+        catch (System.ComponentModel.Win32Exception)
+        {
+            Console.WriteLine(
+                "Unable to find stockfish binaries, expecting a binary file named " 
+                + STOCKFISH_BINARIES + " inside of: \n" + Directory.GetCurrentDirectory()
+                + "\n\nDownload your stockfish binaries at https://stockfishchess.org/download/"
+            );
+            Environment.Exit(0);
+        }
+
+        stockfish.BeginOutputReadLine();
+
+        stockfish.StandardInput.WriteLine("setoption name Threads value " + STOCKFISH_THREADS);
+        stockfish.StandardInput.WriteLine("setoption name Skill Level value " + STOCKFISH_SKILL_LEVEL);
+        stockfish.StandardInput.WriteLine("position fen " + board.GetFenString());
+        stockfish.StandardInput.WriteLine("go depth " + STOCKFISH_DEPTH);
+
+        stockfish.WaitForExit();
+        
+        return bestMove;
+    }
+}