multistockfish 0.4.0

Multiple flavors of Stockfish Engine

0.4.0

• Update latest Stockfish to version 18.

Breaking changes:

• Stockfish is now a singleton. Use Stockfish.instance.
• Configuration (flavor, variant, bigNetPath, smallNetPath) moved from the constructor to start().
• Removed StockfishState.disposed. After calling quit(), the state returns to initial and the engine can be restarted.
• start() throws a StateError if the engine is already running. Call quit() first.
• The stdout stream now persists across restarts - listeners don't need to re-subscribe.

Migration:

// Before
final stockfish = Stockfish(flavor: StockfishFlavor.variant, variant: 'atomic');
// listen to stockfish state and wait for it to be ready
stockfish.stdin = 'uci';

// After
await Stockfish.instance.start(flavor: StockfishFlavor.variant, variant: 'atomic');
// stockfish is ready
Stockfish.instance.stdin = 'uci';

0.3.0

• Add Stockfish 16 (embedded NNUE).
• Default engine is now Stockfish 16.

0.2.1

• Fix wrong NNUE file for Stockfish 17.1

0.2.0

• Use last Stockfish as well on armv7 devices.
• Do not embed NNUE files in the app bundle.

0.1.0

Initial release