diff --git a/.gitignore b/.gitignore index 39d8574..2f45499 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,5 @@ /target /.mypy_cache/ /Cargo.lock +node_modules/ +dist/ diff --git a/Cargo.toml b/Cargo.toml index 7395928..e373c6c 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -6,6 +6,7 @@ edition = "2021" # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] +actix-cors = "0.7.0" actix-web = "4.7.0" anyhow = "1.0.86" clap = { version = "4.5.4", features = ["derive"] } diff --git a/front/.prettierrc.json b/front/.prettierrc.json new file mode 100644 index 0000000..9728b45 --- /dev/null +++ b/front/.prettierrc.json @@ -0,0 +1,5 @@ +{ + "printWidth": 85, + "tabWidth": 4, + "trailingComma": "none" +} diff --git a/front/eslint.config.js b/front/eslint.config.js new file mode 100644 index 0000000..ea46788 --- /dev/null +++ b/front/eslint.config.js @@ -0,0 +1,28 @@ +import globals from "globals"; +import js from "@eslint/js"; +import stylisticJs from "@stylistic/eslint-plugin-js"; + +export default [ + js.configs.recommended, + { + languageOptions: { + globals: { + ...globals.browser, + ...globals.node, + }, + }, + plugins: { + "@stylistic/js": stylisticJs, + }, + rules: { + "no-implicit-coercion": "error", + "no-var": "error", + "prefer-const": "warn", + curly: ["warn", "all"], + eqeqeq: ["warn", "always"], + radix: "warn", + strict: ["warn", "global"], + "@stylistic/js/operator-linebreak": ["error", "before"], + }, + }, +]; diff --git a/front/index.html b/front/index.html new file mode 100644 index 0000000..57fe9a7 --- /dev/null +++ b/front/index.html @@ -0,0 +1,64 @@ + + + + + + + Chess Alpha Beta + + + + + + + + + + + +
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true, + "type": "module", + "scripts": { + "dev": "vite", + "build": "tsc && vite build", + "preview": "vite preview" + }, + "author": "vehlwn <36479428+vehlwn@users.noreply.github.com>", + "license": "MIT", + "devDependencies": { + "typescript": "^5.4.5", + "vite": "^5.2.13", + "vite-plugin-static-copy": "^1.0.5" + }, + "dependencies": { + "chess.js": "^1.0.0-beta.8", + "cm-chessboard": "^8.7.4" + } +} diff --git a/front/src/Game.ts b/front/src/Game.ts new file mode 100644 index 0000000..8828fcc --- /dev/null +++ b/front/src/Game.ts @@ -0,0 +1,358 @@ +import { + Chessboard, + INPUT_EVENT_TYPE, + COLOR, + PIECE +} from "cm-chessboard/src/Chessboard.js"; +import { MARKER_TYPE } from "cm-chessboard/src/extensions/markers/Markers.js"; +import { PROMOTION_DIALOG_RESULT_TYPE } from "cm-chessboard/src/extensions/promotion-dialog/PromotionDialog.js"; +import { Chess, Square, Move } from "chess.js"; + +import { CONFIG } from "./config"; + +export enum GameMode { + CC, + WUBC, + BUWC +} + +export class LogMessageEvent extends Event { + message: string; + constructor(msg: string) { + super("log_message"); + this.message = msg; + } +} + +export class TurnChangedEvent extends Event { + color: COLOR; + constructor(color: COLOR) { + super("turn_changed"); + this.color = color; + } +} +export class CheckEvent extends Event { + color: COLOR; + constructor(color: COLOR) { + super("check"); + this.color = color; + } +} + +export class GameOverEvent extends Event { + message: string; + constructor(message: string) { + super("game_over"); + this.message = message; + } +} + +export class RequestStartedEvent extends Event { + constructor() { + super("request_started"); + } +} + +export class RequestDoneEvent extends Event { + constructor() { + super("request_done"); + } +} + +const MarkerHighlight = { class: "marker_highlight", slice: "marker_highlight" }; +// Marker highlighting valid moves +const AutoMarker = MARKER_TYPE.square; + +interface MoveInputEvent { + chessboard: Chessboard; + type: INPUT_EVENT_TYPE; + squareFrom: Square; +} + +// https://github.com/shaack/cm-chessboard/blob/7918204d91aa6c1916f1ed1ca804524bca43b718/src/view/ChessboardView.js#L362 +interface MoveInputStartedEvent extends MoveInputEvent { + piece: PIECE; +} +interface ValidateMoveInputEvent extends MoveInputEvent { + squareTo: string; + piece: PIECE; +} +// https://github.com/shaack/cm-chessboard/blob/7918204d91aa6c1916f1ed1ca804524bca43b718/src/view/VisualMoveInput.js#L348 +interface MovingOverSquareEvent extends MoveInputEvent { + squareTo: string | null; + piece: PIECE; +} +interface MoveInputFinishedEvent extends MoveInputEvent { + squareTo: string; + legalMove: boolean; +} + +// https://github.com/shaack/cm-chessboard/blob/7918204d91aa6c1916f1ed1ca804524bca43b718/src/extensions/promotion-dialog/PromotionDialog.js#L148 +interface PromotionDialogResult { + type: PROMOTION_DIALOG_RESULT_TYPE; +} +interface PromotionDialogPieceSelected extends PromotionDialogResult { + square: Square; + piece: PIECE; +} + +interface GetBestMoveResponse { + m: string; + value: number; +} + +export class Game extends EventTarget { + private board: Chessboard; + private chess: Chess; + private game_mode: GameMode; + private search_depth: number; + + private last_valid_moves: Map; + + constructor(board: Chessboard, game_mode: GameMode, search_depth: number) { + super(); + + this.board = board; + this.chess = new Chess(); + this.game_mode = game_mode; + this.set_search_depth(search_depth); + + this.last_valid_moves = new Map(); + + if (this.game_mode === GameMode.WUBC) { + this.board.enableMoveInput( + (e: MoveInputEvent) => this.inputHandler(e), + COLOR.white + ); + } + } + + set_search_depth(n: number) { + if (n <= 0 || !Number.isInteger(n)) { + throw new Error(`search_depth must be positive integer (${n})`); + } + this.search_depth = n; + } + + switch_orientation() { + this.board.setOrientation( + this.board.getOrientation() === COLOR.white ? COLOR.black : COLOR.white + ); + } + + private update_view(last_move: Move) { + this.board.setPosition(this.chess.fen(), true); + this.dispatchEvent(new TurnChangedEvent(this.chess.turn())); + this.dispatchEvent(new LogMessageEvent(last_move.san)); + if (last_move.captured !== undefined) { + this.dispatchEvent( + new LogMessageEvent("captured " + last_move.captured) + ); + } + this.check_game_over(); + } + + private highlight_move(m: Move) { + this.board.removeMarkers(MarkerHighlight); + this.board.addMarker(MarkerHighlight, m.from); + this.board.addMarker(MarkerHighlight, m.to); + } + + private _do_random_move() { + const valid_moves = this.chess.moves({ verbose: true }); + if (valid_moves.length > 0) { + const i = Math.floor(Math.random() * valid_moves.length); + const random_move = valid_moves[i]; + this.chess.move(random_move); + this.update_view(random_move); + this.highlight_move(random_move); + if (this.game_mode !== GameMode.CC) { + this.enable_user_input(); + } + } + } + + private async do_server_request(): Promise { + this.dispatchEvent(new RequestStartedEvent()); + const search_depth = this.search_depth; + const fen = this.chess.fen(); + const data = { search_depth, fen }; + const resp = await fetch(`${CONFIG.api_prefix}/api/get_best_move`, { + method: "POST", + headers: { + "Content-Type": "application/json" + }, + body: JSON.stringify(data) + }); + if (resp.status !== 200) { + const text = await resp.text(); + let msg = `server returned bad status ${resp.status}`; + if (text.length !== 0) { + msg += ": " + text; + } + throw new Error(msg); + } + const best_move = (await resp.json()) as GetBestMoveResponse; + return best_move; + } + + do_computer_move() { + // this.do_random_move(); + this.do_server_request() + .then((best_move: GetBestMoveResponse) => { + console.debug("best_move =", best_move); + const last_move = this.chess.move(best_move.m); + if (this.game_mode !== GameMode.CC) { + this.enable_user_input(); + } + this.update_view(last_move); + this.highlight_move(last_move); + }) + .catch((e) => { + this.dispatchEvent(new LogMessageEvent("request failed: " + e)); + }) + .finally(() => { + this.dispatchEvent(new RequestDoneEvent()); + }); + } + + private inputHandler(event: MoveInputEvent) { + switch (event.type) { + case INPUT_EVENT_TYPE.moveInputStarted: { + const e = event as MoveInputStartedEvent; + return this.handle_move_input_started(e); + } + case INPUT_EVENT_TYPE.movingOverSquare: { + const e = event as MovingOverSquareEvent; + return this.handle_moving_over_square(e); + } + case INPUT_EVENT_TYPE.validateMoveInput: { + const e = event as ValidateMoveInputEvent; + return this.handle_validate_move_input(e); + } + case INPUT_EVENT_TYPE.moveInputFinished: { + const e = event as MoveInputFinishedEvent; + if (e.legalMove) { + event.chessboard.disableMoveInput(); + } + event.chessboard.removeLegalMovesMarkers(); + event.chessboard.removeMarkers(AutoMarker); + } + } + } + + private check_game_over() { + if (this.chess.isGameOver()) { + let msg = ""; + if (this.chess.isCheckmate()) { + msg = "checkmate"; + } else if (this.chess.isStalemate()) { + msg = "stalemate"; + } else if (this.chess.isDraw()) { + msg = "draw"; + } + this.board.disableMoveInput(); + this.dispatchEvent(new GameOverEvent(msg)); + } + } + + private enable_user_input() { + if (this.game_mode === GameMode.WUBC && this.chess.turn() === COLOR.white) { + this.board.enableMoveInput( + (e: MoveInputEvent) => this.inputHandler(e), + COLOR.white + ); + } else if ( + this.game_mode === GameMode.BUWC && + this.chess.turn() === COLOR.black + ) { + this.board.enableMoveInput( + (e: MoveInputEvent) => this.inputHandler(e), + COLOR.black + ); + } + } + + private handle_move_input_started(e: MoveInputStartedEvent): boolean { + const moves = this.chess.moves({ + square: e.squareFrom, + verbose: true + }); + this.last_valid_moves = new Map(moves.map((m) => [m.lan, m])); + e.chessboard.removeMarkers(AutoMarker); + e.chessboard.removeLegalMovesMarkers(); + if ( + this.chess.get(e.squareFrom).color === this.chess.turn() && + moves.length > 0 + ) { + e.chessboard.addMarker(AutoMarker, e.squareFrom); + } + + e.chessboard.addLegalMovesMarkers(moves); + return moves.length > 0; + } + + private handle_moving_over_square(e: MovingOverSquareEvent) { + this.board.removeMarkers(AutoMarker); + this.board.addMarker(AutoMarker, e.squareFrom); + if (e.squareTo === null) { + return; + } + if (this.last_valid_moves.has(e.squareFrom + e.squareTo)) { + this.board.addMarker(AutoMarker, e.squareTo); + } + } + + private handle_validate_move_input(event: ValidateMoveInputEvent): boolean { + const move = { + from: event.squareFrom, + to: event.squareTo + }; + try { + const move_result = this.chess.move(move); + event.chessboard.state.moveInputProcess.then(() => { + // update position, maybe castled + this.update_view(move_result); + this.do_computer_move(); + }); + return true; + } catch (er) { + // maybe promotion + return this.handle_promotion(event); + } + } + + private handle_promotion(event: ValidateMoveInputEvent): boolean { + for (const [_lan, m] of this.last_valid_moves) { + if (m.promotion && m.to === event.squareTo) { + event.chessboard.showPromotionDialog( + event.squareTo, + COLOR.white, + (result: PromotionDialogResult) => { + console.debug("promotion result", result); + if ( + result.type === + PROMOTION_DIALOG_RESULT_TYPE.pieceSelected + ) { + const selected = result as PromotionDialogPieceSelected; + const move_result = this.chess.move({ + from: event.squareFrom, + to: event.squareTo, + promotion: selected.piece.charAt(1) + }); + this.update_view(move_result); + this.do_computer_move(); + } else { + // promotion canceled + this.enable_user_input(); + // undo pawn move + event.chessboard.setPosition(this.chess.fen(), true); + } + } + ); + return true; + } + } + return false; + } +} diff --git a/front/src/config.ts b/front/src/config.ts new file mode 100644 index 0000000..e68b01f --- /dev/null +++ b/front/src/config.ts @@ -0,0 +1,8 @@ +function get_api_prefix() { + if (import.meta.env.DEV) { + return "http://localhost:8081"; + } + return ""; +} + +export const CONFIG = { api_prefix: get_api_prefix() }; diff --git a/front/src/index.ts b/front/src/index.ts new file mode 100644 index 0000000..30448f9 --- /dev/null +++ b/front/src/index.ts @@ -0,0 +1,151 @@ +import "./styles.css"; + +import { Chessboard, FEN, COLOR } from "cm-chessboard/src/Chessboard.js"; +import { Markers } from "cm-chessboard/src/extensions/markers/Markers.js"; +import { PromotionDialog } from "cm-chessboard/src/extensions/promotion-dialog/PromotionDialog.js"; + +import { + GameMode, + Game, + TurnChangedEvent, + LogMessageEvent, + GameOverEvent +} from "./Game"; + +let game_mode_selector: HTMLDivElement; +let cc_mode_btn: HTMLButtonElement; +let wubc_mode_btn: HTMLButtonElement; +let buwc_mode_btn: HTMLButtonElement; +let game_container_div: HTMLDivElement; +let board_div: HTMLDivElement; +let turn_lbl: HTMLLabelElement; +let depth_input: HTMLInputElement; +let switch_orientation_btn: HTMLButtonElement; +let next_move_btn: HTMLButtonElement; +let messages_div: HTMLDivElement; + +let game: Game; + +let game_mode: GameMode; + +const DEFAULT_SEARCH_DEPTH = 5; + +function show_message(text: string) { + const node = document.createElement("div"); + node.innerText = text; + messages_div.appendChild(node); + const children = messages_div.childNodes; + if (children.length > 20) { + messages_div.removeChild(children[0]); + } +} + +function start_game() { + const board = new Chessboard(board_div, { + position: FEN.start, + assetsUrl: "./assets/", + extensions: [ + { class: Markers, props: { autoMarkers: null } }, + { class: PromotionDialog } + ], + style: { animationDuration: 200 } + }); + const depth = Number.parseInt(depth_input.value); + if (Number.isNaN(depth)) { + show_message("Depth value is not a number!"); + return; + } + + game = new Game(board, game_mode, depth); + game.addEventListener("turn_changed", (e: TurnChangedEvent) => { + set_turn_text(e.color); + }); + game.addEventListener("log_message", (e: LogMessageEvent) => { + show_message(e.message); + }); + game.addEventListener("game_over", (e: GameOverEvent) => { + show_message(`Game over: ${e.message}`); + next_move_btn.classList.add("hidden"); + }); + game.addEventListener("request_started", () => { + next_move_btn.disabled = true; + }); + game.addEventListener("request_done", () => { + next_move_btn.disabled = false; + }); + + set_turn_text(COLOR.white); + if (game_mode === GameMode.BUWC) { + game.do_computer_move(); + } + + if (game_mode === GameMode.CC) { + next_move_btn.onclick = () => game.do_computer_move(); + } +} + +function set_game_mode(mode: GameMode) { + game_mode = mode; + game_mode_selector.classList.add("hidden"); + game_container_div.classList.remove("hidden"); + if (game_mode === GameMode.CC) { + next_move_btn.classList.remove("hidden"); + } + start_game(); +} + +function set_turn_text(color: COLOR) { + if (color === COLOR.white) { + turn_lbl.innerText = "White turn"; + } else { + turn_lbl.innerText = "Black turn"; + } +} + +function validate_search_depth(s: string): number { + if (s.length === 0) { + return DEFAULT_SEARCH_DEPTH; + } + const i = Number.parseInt(s); + const min = Number.parseInt(depth_input.min); + const max = Number.parseInt(depth_input.max); + if (Number.isNaN(i) || i < min || i > max) { + console.warn("depth number is invalid"); + return DEFAULT_SEARCH_DEPTH; + } + return i; +} + +function add_event_listeners() { + wubc_mode_btn.onclick = () => set_game_mode(GameMode.WUBC); + buwc_mode_btn.onclick = () => set_game_mode(GameMode.BUWC); + cc_mode_btn.onclick = () => set_game_mode(GameMode.CC); + switch_orientation_btn.onclick = () => game.switch_orientation(); + depth_input.onchange = () => { + const s = depth_input.value; + const new_value = validate_search_depth(s); + depth_input.value = new_value.toString(); + game.set_search_depth(new_value); + }; +} + +window.onload = () => { + game_mode_selector = document.getElementById( + "game_mode_selector" + ) as HTMLDivElement; + cc_mode_btn = document.getElementById("cc") as HTMLButtonElement; + wubc_mode_btn = document.getElementById("wubc") as HTMLButtonElement; + buwc_mode_btn = document.getElementById("buwc") as HTMLButtonElement; + switch_orientation_btn = document.getElementById( + "switch_orientation" + ) as HTMLButtonElement; + game_container_div = document.getElementById("game_container") as HTMLDivElement; + depth_input = document.getElementById("depth") as HTMLInputElement; + board_div = document.getElementById("board") as HTMLDivElement; + turn_lbl = document.getElementById("turn") as HTMLLabelElement; + next_move_btn = document.getElementById("next_move") as HTMLButtonElement; + messages_div = document.getElementById("messages") as HTMLDivElement; + + depth_input.value = DEFAULT_SEARCH_DEPTH.toString(); + add_event_listeners(); +}; diff --git a/front/src/styles.css b/front/src/styles.css new file mode 100644 index 0000000..89b1bf6 --- /dev/null +++ b/front/src/styles.css @@ -0,0 +1,17 @@ +.flex_container { + display: flex; +} +.flex_container > div { + margin: 10px; +} +.hidden { + display: none !important; +} +.marker_highlight { + fill: green; + opacity: 0.5; +} +#board { + width: 500px; + margin: 10px; +} diff --git a/front/src/vite-env.d.ts b/front/src/vite-env.d.ts new file mode 100644 index 0000000..028adf2 --- /dev/null +++ b/front/src/vite-env.d.ts @@ -0,0 +1,7 @@ +/// + +interface ImportMetaEnv {} + +interface ImportMeta { + readonly env: ImportMetaEnv; +} diff --git a/front/tsconfig.json b/front/tsconfig.json new file mode 100644 index 0000000..8041f94 --- /dev/null +++ b/front/tsconfig.json @@ -0,0 +1,22 @@ +{ + "compilerOptions": { + "target": "ES2022", + "useDefineForClassFields": true, + "module": "ESNext", + "lib": ["ES2022", "DOM", "DOM.Iterable"], + "skipLibCheck": true, + + /* Bundler mode */ + "moduleResolution": "bundler", + "allowImportingTsExtensions": true, + "resolveJsonModule": true, + "isolatedModules": true, + "noEmit": true, + + /* Linting */ + "strictNullChecks": true, + "noFallthroughCasesInSwitch": true, + "noImplicitReturns": true + }, + "include": ["src"] +} diff --git a/front/vite.config.ts b/front/vite.config.ts new file mode 100644 index 0000000..9636605 --- /dev/null +++ b/front/vite.config.ts @@ -0,0 +1,14 @@ +import { viteStaticCopy } from "vite-plugin-static-copy"; + +export default { + plugins: [ + viteStaticCopy({ + targets: [ + { + src: "node_modules/cm-chessboard/assets", + dest: "." + } + ] + }) + ] +}; diff --git a/src/bin/server.rs b/src/bin/chess-alpha-beta-server.rs similarity index 52% rename from src/bin/server.rs rename to src/bin/chess-alpha-beta-server.rs index c5af511..f3e8360 100644 --- a/src/bin/server.rs +++ b/src/bin/chess-alpha-beta-server.rs @@ -1,8 +1,7 @@ -use chess_alpha_beta::alpha_beta::{get_best_move, ValueType}; +use actix_cors::Cors; +use actix_web::{http::header, post, web, App, HttpResponse, HttpServer, Responder}; -use actix_web::{ - http::StatusCode, post, web, App, HttpResponse, HttpServer, Responder, -}; +use chess_alpha_beta::alpha_beta::{get_best_move, ValueType}; #[derive(serde::Deserialize)] struct GetBestMoveRequest { @@ -43,20 +42,52 @@ async fn api_get_best_move(json: web::Json) -> impl Responde }; } +/// Server program for chess-alpha-beta +#[derive(clap::Parser, Debug)] +#[command(version, about, long_about = None)] +struct Args { + /// TCP port where to bind HTTP server + #[arg(short, long, default_value = "8081")] + port: u16, +} + #[actix_web::main] async fn main() -> std::io::Result<()> { env_logger::Builder::from_env( env_logger::Env::default().default_filter_or("info"), ) .init(); + use clap::Parser; + let args = Args::parse(); let server = HttpServer::new(|| { App::new() .wrap(actix_web::middleware::Logger::default()) + .wrap( + // default settings are overly restrictive to reduce chance of + // misconfiguration leading to security concerns + Cors::default() + // allow any port on localhost + .allowed_origin_fn(|origin, _req_head| { + origin.as_bytes().starts_with(b"http://localhost") + }) + // set allowed methods list + .allowed_methods(vec!["GET", "POST"]) + // set allowed request header list + .allowed_headers(&[header::AUTHORIZATION, header::ACCEPT]) + // add header to allowed list + .allowed_header(header::CONTENT_TYPE) + // set list of headers that are safe to expose + .expose_headers(&[header::CONTENT_DISPOSITION]) + // allow cURL/HTTPie from working without providing Origin headers + .block_on_origin_mismatch(false) + // set preflight cache TTL + .max_age(3600), + ) .service(web::scope("/api").service(api_get_best_move)) .route("/healthy", web::get().to(HttpResponse::Ok)) }) - .bind(("localhost", 8080))?; + .bind(("0.0.0.0", args.port))?; log::info!("Server listening {:?}", server.addrs()); server.run().await }