add rudimentary web interface
Stefan Steininger
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src/chesspp/res/bB.png
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src/chesspp/res/bK.png
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src/chesspp/res/bN.png
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src/chesspp/res/bP.png
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src/chesspp/res/bQ.png
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src/chesspp/res/bR.png
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src/chesspp/res/index.html
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<!DOCTYPE html>
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<html>
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<head>
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<title>ChessPP</title>
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<link rel="stylesheet"
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href="https://unpkg.com/@chrisoakman/chessboardjs@1.0.0/dist/chessboard-1.0.0.min.css"
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integrity="sha384-q94+BZtLrkL1/ohfjR8c6L+A6qzNH9R2hBLwyoAfu3i/WCvQjzL2RQJ3uNHDISdU"
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crossorigin="anonymous">
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
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<script src="https://unpkg.com/@chrisoakman/chessboardjs@1.0.0/dist/chessboard-1.0.0.min.js"
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integrity="sha384-8Vi8VHwn3vjQ9eUHUxex3JSN/NFqUg3QbPyX8kWyb93+8AC/pPWTzj+nHtbC5bxD"
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crossorigin="anonymous"></script>
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</head>
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<body>
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<div id="board1" style="width: 400px"></div>
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<script>
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var board1 = Chessboard('board1', 'start')
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const socket = new WebSocket("ws://localhost:8080/ws");
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socket.addEventListener("open", (event) => {
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socket.send("Hello Server!");
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});
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socket.addEventListener("message", (event) => {
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move = event.data;
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from = move.substr(0, 2);
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to = move.substr(2, 2);
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board1.move(from + '-' + to);
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console.log("Message from server ", event.data);
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});
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</script>
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</body>
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</html>
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src/chesspp/res/wB.png
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src/chesspp/res/wK.png
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src/chesspp/res/wN.png
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src/chesspp/res/wP.png
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src/chesspp/res/wQ.png
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src/chesspp/res/wR.png
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src/chesspp/web.py
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import os
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import asyncio
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import aiohttp
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from aiohttp import web
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import chess
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from chesspp import engine
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_DIR = os.path.abspath(os.path.dirname(__file__))
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_INDEX = os.path.join(_DIR, "res/index.html")
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def load_index():
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with open(_INDEX, 'r') as fp:
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return fp.read()
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index_data = load_index()
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async def handle_index(request):
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#raise web.HTTPFound('/index.html')
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return web.Response(text=load_index(), content_type='text/html')
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class Simulate:
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def __init__(self):
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self.white = engine.ClassicMctsEngine(chess.WHITE)
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self.black = engine.ClassicMctsEngine(chess.BLACK)
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def run(self):
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board = chess.Board()
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is_white_playing = True
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while not board.is_game_over():
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play_result = self.white.play(board) if is_white_playing else self.black.play(board)
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yield play_result.move
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board.push(play_result.move)
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is_white_playing = not is_white_playing
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async def websocket_handler(request):
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ws = web.WebSocketResponse()
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await ws.prepare(request)
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async def wait_msg():
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async for msg in ws:
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if msg.type == aiohttp.WSMsgType.TEXT:
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if msg.data == 'close':
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await ws.close()
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elif msg.type == aiohttp.WSMsgType.ERROR:
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print(f'ws connection closed with exception {ws.exception()}')
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async def turns():
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runner = Simulate().run()
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def sim():
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return next(runner, None)
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turn = await asyncio.to_thread(sim)
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while turn is not None:
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await ws.send_str(turn.uci())
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turn = await asyncio.to_thread(sim)
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async with asyncio.TaskGroup() as tg:
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tg.create_task(wait_msg())
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tg.create_task(turns())
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print('websocket connection closed')
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return ws
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app = web.Application()
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app.add_routes([
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web.get('/', handle_index),
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#web.static('/', os.path.join(_DIR, 'res')),
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web.static('/img/chesspieces/wikipedia/', os.path.join(_DIR, 'res')),
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web.get('/ws', websocket_handler),
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])
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if __name__ == '__main__':
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web.run_app(app)
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