Josh-HeapsandClaude Opus 4.8
d87cea572f
- Track HalfmoveClock in GameState/ChessService (reset on captures and pawn moves) - Emit the real halfmove clock in ToFen and add GameState.RepetitionHistory() (prior positions since the last irreversible move) in ChessEngineHelpers - Pass that history through IChessEngine.GetBestMoveAsync to the native engine; Stockfish ignores it Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
25 lines
1.0 KiB
C#
25 lines
1.0 KiB
C#
namespace JoshHeaps.Net.Services.Interfaces;
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/// <summary>
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/// An AI move-selection engine (e.g. Stockfish or the custom native engine).
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/// Selects a move for a position; it does not enforce rules or broadcast updates.
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/// Implementations own unmanaged resources, hence <see cref="IAsyncDisposable"/>.
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/// </summary>
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public interface IChessEngine : IAsyncDisposable
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{
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/// <summary>The engine's playing strength / search depth.</summary>
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int Skill { get; }
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/// <summary>
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/// Returns the engine's chosen move in UCI long-algebraic form (e.g. "e2e4", "e7e8q").
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/// </summary>
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/// <param name="fen">The current position as a FEN string.</param>
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/// <param name="historyFens">
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/// Prior positions since the last irreversible move, oldest first, excluding the
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/// current one — lets the engine detect threefold/50-move draws the FEN can't carry.
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/// May be empty.
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/// </param>
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/// <returns>The selected move as a UCI string.</returns>
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Task<string> GetBestMoveAsync(string fen, IReadOnlyList<string> historyFens);
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}
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