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updated ignore for node modules

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2ManyProjects 2025-02-16 02:10:48 -06:00
parent b3d58f325f
commit 221850654d
7 changed files with 1330 additions and 2 deletions
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16
.gitignore vendored
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@ -1,5 +1,17 @@
# Godot 4+ specific ignores
.godot/
/android/
stockfish
Assets/ChessEngines
# Node modules
**/node_modules/
# Assets/*
# Chess engine binaries and their subdirectories
Assets/ChessEngines/stockfish/*
Assets/ChessEngines/Fairy-Stockfish/*
# Assets/ChessEngines/stockfish/**
# Assets/ChessEngines/Fairy-Stockfish/**
# # Keep only necessary files in fairy-chess-server
Assets/ChessEngines/fairy-chess-server/*
!Assets/ChessEngines/fairy-chess-server/*.js
!Assets/ChessEngines/fairy-chess-server/*.json

44
Assets/ChessEngines/fairy-chess-server/engine-path.js Normal file
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// Assets/ChessEngines/fairy-chess-server/engine-path.js
import path from 'path';
import os from 'os';
import { fileURLToPath } from 'url';
import { dirname } from 'path';
// Get current file's directory in ES modules
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
function getEnginePath() {
// First check if path is provided through environment variable
if (process.env.FAIRY_STOCKFISH_PATH) {
return process.env.FAIRY_STOCKFISH_PATH;
}
// Get the current directory (fairy-chess-server)
const currentDir = __dirname;
// Navigate up to Assets/ChessEngines
const engineBaseDir = path.join(currentDir, '..', '..');
// console.log(engineBaseDir + '/Fairy-Stockfish' + '/src' + '/stockfish')
// Determine OS and set appropriate path
if (os.platform() === 'win32') {
// Windows path
return engineBaseDir + '/ChessEngines' + '/stockfish' + '/stockfish.exe'
} else {
//res://Assets/ChessEngines/Fairy-Stockfish/src/stockfish
// Unix-like systems (Linux, macOS)
return engineBaseDir + '/ChessEngines'+ '/Fairy-Stockfish' + '/src' + '/stockfish';
}
}
// Verify engine path exists
async function verifyEnginePath(enginePath) {
const fs = await import('fs');
if (!fs.existsSync(enginePath)) {
throw new Error(`Chess engine not found at path: ${enginePath}`);
}
return enginePath;
}
export { getEnginePath, verifyEnginePath };

163
Assets/ChessEngines/fairy-chess-server/engine.js Normal file
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// engine.js
import { spawn } from 'child_process';
import { EventEmitter } from 'events';
class ChessEngine extends EventEmitter {
constructor(enginePath) {
super();
this.enginePath = enginePath;
this.engine = null;
this.isReady = false;
this.currentFen = null;
}
start() {
return new Promise((resolve, reject) => {
try {
this.engine = spawn(this.enginePath);
this.engine.stdout.on('data', (data) => {
const messages = data.toString().trim().split('\n');
messages.forEach(msg => this.handleEngineMessage(msg));
});
this.engine.stderr.on('data', (data) => {
console.error('Engine Error:', data.toString());
});
this.engine.on('close', (code) => {
console.log('Engine process closed with code:', code);
this.isReady = false;
});
// Initialize engine
this.sendCommand('uci');
this.waitforReady(resolve);
} catch (error) {
reject(error);
}
});
}
waitforReady(resolve){
this.sendCommand('isready');
// Wait for readyok
this.once('ready', () => {
this.isReady = true;
resolve();
});
}
handleEngineMessage(message) {
console.log('Engine:', message);
if (message.includes('readyok')) {
this.emit('ready');
}
else if (message.startsWith('bestmove')) {
const [, move] = message.split(' ');
this.emit('bestmove', move);
}
else if (message.startsWith('info')) {
this.emit('info', this.parseInfo(message));
}
}
parseInfo(info) {
const parts = info.split(' ');
const result = {};
for (let i = 1; i < parts.length; i++) {
switch (parts[i]) {
case 'depth':
result.depth = parseInt(parts[++i]);
break;
case 'seldepth':
result.seldepth = parseInt(parts[++i]);
break;
case 'score':
result.score = {
type: parts[++i],
value: parseInt(parts[++i])
};
break;
case 'nodes':
result.nodes = parseInt(parts[++i]);
break;
case 'time':
result.time = parseInt(parts[++i]);
break;
case 'pv':
result.pv = [];
while (++i < parts.length && !parts[i].includes('bmc')) {
result.pv.push(parts[i]);
}
break;
}
}
return result;
}
sendCommand(cmd) {
if (this.engine && this.engine.stdin.writable) {
console.log('Sending:', cmd);
this.engine.stdin.write(cmd + '\n');
}
}
async setBoardPosition(fen) {
if (!this.isReady) throw new Error('Engine not ready');
this.currentFen = fen;
this.sendCommand(`position fen ${fen}`);
// Ensure engine is ready after position set
this.sendCommand('isready');
await new Promise(resolve => this.once('ready', resolve));
}
async getBestMove(options = {}) {
if (!this.isReady) throw new Error('Engine not ready');
if (!this.currentFen) throw new Error('Position not set');
const {
depth = 15,
movetime = 1000,
nodes = null,
} = options;
return new Promise((resolve) => {
// Construct go command
let goCmd = 'go';
if (depth) goCmd += ` depth ${depth}`;
if (movetime) goCmd += ` movetime ${movetime}`;
if (nodes) goCmd += ` nodes ${nodes}`;
this.sendCommand(goCmd);
// Wait for bestmove response
this.once('bestmove', (move) => {
resolve(move);
});
});
}
async getAnalysis(fen, options = {}) {
await this.setBoardPosition(fen);
const bestMove = await this.getBestMove(options);
return { bestMove };
}
quit() {
if (this.engine) {
this.sendCommand('quit');
this.engine = null;
this.isReady = false;
}
}
}
export default ChessEngine;

335
Assets/ChessEngines/fairy-chess-server/index.js Normal file
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import express from 'express';
import ffish from 'ffish';
import ChessEngine from './engine.js';
import { getEnginePath, verifyEnginePath } from './engine-path.js';
const app = express();
const port = 27531;
let board = null;
let engine = null;
let isReady = false;
// Initialize ffish and engine
ffish.onRuntimeInitialized = async () => {
try {
isReady = true;
console.log('Fairy-Chess library ready');
// Get and verify engine path
const enginePath = getEnginePath();
// Initialize Stockfish
engine = new ChessEngine(enginePath);
await engine.start();
console.log('Chess engine initialized at:', enginePath, engine.isReady);
// Set initial engine options
if (engine.isReady) {
engine.sendCommand('setoption name Threads value 4');
engine.sendCommand('setoption name Hash value 128');
engine.sendCommand('setoption name MultiPV value 1');
}
} catch (error) {
console.error('Initialization error:', error);
}
};
app.use(express.json());
// Health check endpoint
app.get('/health', (req, res) => {
res.json({
status: 'ok',
engineReady: isReady && engine && engine.isReady,
enginePath: getEnginePath(),
platform: process.platform,
variants: ffish.variants()
});
});
// Validate FEN endpoint
app.post('/validate', (req, res) => {
const { fen, variant = 'chess' } = req.body;
if (!fen) {
return res.status(400).json({ error: 'FEN string required' });
}
try {
// Create temporary board to validate FEN
const tempBoard = new ffish.Board(variant);
const isValid = tempBoard.setFen(fen);
tempBoard.delete();
res.json({
isValid,
startingFen: ffish.startingFen(variant)
});
} catch (error) {
res.status(400).json({ error: 'Invalid FEN or variant' });
}
});
// New game endpoint
app.post('/new', (req, res) => {
const { variant = 'chess' } = req.body;
try {
if (board) {
board.delete();
}
board = new ffish.Board(variant);
res.json({
status: 'ok',
fen: board.fen(),
legalMoves: board.legalMoves().split(' '),
legalMovesSan: board.legalMovesSan().split(' '),
isCheck: board.isCheck(),
turn: board.turn(),
moveStack: board.moveStack()
});
} catch (error) {
res.status(500).json({ error: error.message });
}
});
// Set position endpoint
app.post('/position', (req, res) => {
const { fen, variant = 'chess' } = req.body;
if (!fen) {
return res.status(400).json({ error: 'FEN string required' });
}
try {
//we have a lot of funky rules lets not validate
// const isValid = ffish.validateFen(fen) == 1
// if (!isValid) {
// return res.status(400).json({ error: 'Invalid FEN string',
// fen,
// variant,
// boardExists: !!board, reqBody: JSON.stringify(req.body) });
// }else {
// // if (board) {
// // board.delete();
// // }
// board.setFen(fen);
// }
board.setFen(fen);
res.json({
status: 'ok',
msg: "Set Position",
legalMoves: board.legalMoves().split(' '),
legalMovesSan: board.legalMovesSan().split(' '),
isCheck: board.isCheck(),
isGameOver: board.isGameOver(),
result: board.result(),
turn: board.turn(),
moveStack: board.moveStack()
});
} catch (error) {
res.status(500).json({ error: error.message });
}
});
// Make move endpoint
app.post('/move', (req, res) => {
const { move, notation = 'uci', variant = 'chess' } = req.body;
if (!board) {
return res.status(400).json({ error: 'No active board' });
}
if (!move) {
return res.status(400).json({ error: 'Move required' });
}
if (board) {
board.delete();
}
board = new ffish.Board(variant);
try {
if (notation === 'san') {
board.pushSan(move);
} else {
board.push(move);
}
const response = {
status: 'ok',
fen: board.fen(),
legalMoves: board.legalMoves().split(' '),
legalMovesSan: board.legalMovesSan().split(' '),
isCheck: board.isCheck(),
isGameOver: board.isGameOver(),
result: board.result(),
turn: board.turn(),
moveStack: board.moveStack(),
fullmoveNumber: board.fullmoveNumber(),
halfmoveClock: board.halfmoveClock()
};
if (board.isGameOver()) {
response.hasInsufficientMaterial = {
white: board.hasInsufficientMaterial(true), // true for white
black: board.hasInsufficientMaterial(false) // false for black
};
response.gameResult = board.result();
}
res.json(response);
} catch (error) {
res.status(500).json({ error: error.message });
}
});
// State endpoint
app.get('/state', (req, res) => {
if (!board) {
return res.status(400).json({ error: 'No active board' });
}
try {
res.json({
fen: board.fen(),
legalMoves: board.legalMoves().split(' '),
legalMovesSan: board.legalMovesSan().split(' '),
isCheck: board.isCheck(),
isGameOver: board.isGameOver(),
result: board.result(),
turn: board.turn(),
moveStack: board.moveStack(),
fullmoveNumber: board.fullmoveNumber(),
halfmoveClock: board.halfmoveClock(),
variant: board.variant(),
is960: board.is960()
});
} catch (error) {
res.status(500).json({ error: error.message });
}
});
// Analysis endpoint
app.post('/analyze', async (req, res) => {
if (!board) {
return res.status(400).json({ error: 'No active board' });
}
try {
const { depth = 15, movetime = 1000 } = req.body;
// Get basic position analysis
const positionAnalysis = {
fen: board.fen(),
isCheck: board.isCheck(),
isGameOver: board.isGameOver(),
result: board.result(),
hasInsufficientMaterial: {
white: board.hasInsufficientMaterial(true), // true for white
black: board.hasInsufficientMaterial(false) // false for black
},
legalMoves: board.legalMoves().split(' '),
legalMovesSan: board.legalMovesSan().split(' '),
moveStack: board.moveStack()
};
// If engine is available, get engine analysis
if (engine && engine.isReady) {
const engineAnalysis = await engine.getAnalysis(board.fen(), {
depth,
movetime
});
positionAnalysis.engineAnalysis = engineAnalysis;
}
res.json(positionAnalysis);
} catch (error) {
res.status(500).json({ error: error.message });
}
});
// Engine move endpoint
app.post('/enginemove', async (req, res) => {
if (!board) {
return res.status(400).json({ error: 'No active board' });
}
if (!engine || !engine.isReady) {
return res.status(503).json({
error: 'Engine not available',
details: 'Chess engine is not initialized or not ready'
});
}
const {
depth = 15,
movetime = 1000,
nodes = null
} = req.body;
try {
const fen = board.fen();
const analysis = await engine.getAnalysis(fen, {
depth,
movetime,
nodes
});
if (analysis.bestMove) {
board.push(analysis.bestMove);
}
res.json({
status: 'ok',
move: analysis.bestMove,
analysis: analysis,
fen: board.fen(),
legalMoves: board.legalMoves().split(' '),
isCheck: board.isCheck(),
isGameOver: board.isGameOver(),
turn: board.turn()
});
} catch (error) {
res.status(500).json({
error: 'Engine analysis failed',
details: error.message
});
}
});
// Cleanup handling
process.on('SIGTERM', () => {
console.log('Shutting down...');
if (board) board.delete();
if (engine) engine.quit();
process.exit(0);
});
process.on('SIGINT', () => {
console.log('Received SIGINT, shutting down...');
if (board) board.delete();
if (engine) engine.quit();
process.exit(0);
});
app.listen(port, () => {
console.log(`Fairy-Chess server running on port ${port}`);
});
app.post('/shutdown', (req, res) => {
res.json({ status: 'shutting_down' });
// Give time for response to be sent
setTimeout(() => {
if (board) board.delete();
if (engine) engine.quit();
process.exit(0);
}, 100);
});

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Assets/ChessEngines/fairy-chess-server/package-lock.json generated Normal file
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{
"name": "fairy-chess-server",
"version": "1.0.0",
"description": "",
"main": "index.js",
"type": "module",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"axios": "^1.7.9",
"express": "^4.21.2",
"ffish": "^0.7.7",
"stockfish": "^16.0.0"
}
}

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Assets/ChessEngines/fairy-chess-server/test.js Normal file
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import axios from 'axios';
const baseURL = 'http://localhost:27531';
async function delay(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function testServer() {
try {
// Test 1: Health check
console.log('\nTest 1: Health Check');
const health = await axios.get(`${baseURL}/health`);
console.log('Health status:', health.data);
// Wait for engine initialization
await delay(2000);
// Test 2: Validate FEN
console.log('\nTest 2: Validate FEN');
const startPos = 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1';
const validation = await axios.post(`${baseURL}/validate`, {
fen: startPos
});
console.log('FEN validation:', validation.data);
// Test 3: Create new game
console.log('\nTest 3: Create New Game');
const newGame = await axios.post(`${baseURL}/new`, {
variant: 'chess'
});
console.log('New game created:', newGame.data);
// Test 4: Set position
console.log('\nTest 4: Set Position');
const position = await axios.post(`${baseURL}/position`, {
fen: startPos,
variant: 'chess'
});
console.log('Position set:', position.data);
// Test 5: Get engine move from starting position
console.log('\nTest 5: Get Engine Move');
const engineMove = await axios.post(`${baseURL}/enginemove`, {
depth: 15,
movetime: 1000
});
console.log('Engine move:', engineMove.data);
// Test 6: Make a specific move
console.log('\nTest 6: Make Move (UCI)');
const moveUCI = await axios.post(`${baseURL}/move`, {
move: 'e2e4',
notation: 'uci'
});
console.log('UCI move made:', moveUCI.data);
// Test 7: Make move using SAN notation
console.log('\nTest 7: Make Move (SAN)');
const moveSAN = await axios.post(`${baseURL}/move`, {
move: 'Nf6',
notation: 'san'
});
console.log('SAN move made:', moveSAN.data);
// Test 8: Get current state
console.log('\nTest 8: Get Current State');
const state = await axios.get(`${baseURL}/state`);
console.log('Current state:', state.data);
// Test 9: Position Analysis
console.log('\nTest 9: Position Analysis');
const analysis = await axios.post(`${baseURL}/analyze`, {
depth: 15,
movetime: 1000
});
console.log('Position analysis:', analysis.data);
// Test 10: Test variant chess
console.log('\nTest 10: Test Chess Variant');
const variantGame = await axios.post(`${baseURL}/new`, {
variant: 'crazyhouse'
});
console.log('Crazyhouse game created:', variantGame.data);
// Test 11: Test invalid FEN
console.log('\nTest 11: Test Invalid FEN');
try {
await axios.post(`${baseURL}/position`, {
fen: 'invalid fen string',
variant: 'chess'
});
} catch (error) {
console.log('Invalid FEN correctly rejected:', error.response.data);
}
// Test 12: Test invalid move
console.log('\nTest 12: Test Invalid Move');
try {
await axios.post(`${baseURL}/move`, {
move: 'e2e5', // Invalid move
notation: 'uci'
});
} catch (error) {
console.log('Invalid move correctly rejected:', error.response.data);
}
// Test 13: Engine Analysis with Different Settings
console.log('\nTest 13: Engine Analysis with Custom Settings');
const customAnalysis = await axios.post(`${baseURL}/analyze`, {
depth: 20,
movetime: 2000
});
console.log('Custom analysis:', customAnalysis.data);
// Test 14: Final State Check
console.log('\nTest 14: Final State Check');
const finalHealth = await axios.get(`${baseURL}/health`);
console.log('Final server status:', {
engineReady: finalHealth.data.engineReady,
status: finalHealth.data.status
});
console.log('\nAll tests completed successfully!');
} catch (error) {
console.error('Test failed:', error.message);
if (error.response) {
console.error('Error details:', {
status: error.response.status,
data: error.response.data
});
}
}
}
// Run tests
console.log('Starting Fairy-Chess server tests...');
testServer().then(() => {
console.log('Test suite completed.');
}).catch(err => {
console.error('Test suite failed:', err);
});