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206 lines (176 loc) · 6.03 KB
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// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import {Socket} from './gtp_socket'
import {Nullable, Color, Move} from './base'
import {Annotation, Board} from './board'
import * as util from './util'
class Position {
search: Move[] = [];
pv: Move[] = [];
n: Nullable<number[]> = null;
dq: Nullable<number[]> = null;
annotations: Annotation[] = [];
constructor(public moveNum: number,
public stones: Color[],
public lastMove: Nullable<Move>,
public toPlay: Color) {
if (lastMove != null && lastMove != 'pass' && lastMove != 'resign') {
this.annotations.push({
p: lastMove,
shape: Annotation.Shape.Dot,
color: '#ef6c02',
});
}
}
}
interface SearchMsg {
moveNum: number;
toPlay: string | Color;
search: string[] | Move[];
n: number[];
dq: number[];
pv?: string[] | Move[];
}
interface GameStateMsg {
board: string;
toPlay: string;
lastMove?: string;
moveNum: number;
q: number;
gameOver: boolean;
}
// App base class used by the different Minigui UI implementations.
abstract class App {
// WebSocket connection to the Miniui backend server.
protected gtp = new Socket();
// Board size.
protected size: number;
// True if Minigo is processing a genmove command.
protected engineBusy = false;
// The list of board positions played.
// TODO(tommadams): This will need to be turned into a tree when we add an
// analysis mode.
protected positionHistory: Position[];
// The current position being displayed on the boards.
protected activePosition: Position;
// True when the backend reports that the game is over.
protected gameOver = true;
// Whose turn is it.
protected toPlay = Color.Black;
// List of Board views.
private boards: Board[] = [];
protected abstract onGameOver(): void;
constructor() {
this.gtp.onData('mg-search', this.onSearch.bind(this));
this.gtp.onData('mg-gamestate', this.onGameState.bind(this));
}
protected connect() {
let uri = `http://${document.domain}:${location.port}/minigui`;
return this.gtp.connect(uri).then((size: number) => {
this.size = size;
});
}
protected init(boards: Board[]) {
this.boards = boards;
}
protected newGame() {
this.activePosition = new Position(
0, util.emptyBoard(this.size), null, Color.Black)
this.positionHistory = [this.activePosition];
this.gtp.send('clear_board');
this.gtp.send('gamestate');
this.gtp.send('info');
// Iterate over the data-* attributes attached to the main minigui container
// element, looking for data-gtp-* attributes. Send any matching ones as GTP
// commands to the backend.
let containerElem = document.querySelector('.minigui') as HTMLElement;
if (containerElem != null) {
let dataset = containerElem.dataset;
for (let key in dataset) {
if (key.startsWith('gtp')) {
let cmd = key.substr(3).toLowerCase();
let args = dataset[key];
this.gtp.send(`${cmd} ${args}`);
}
}
}
this.updateBoards(this.activePosition);
}
// Updates all layers of the App's boards from a state object. Typically the
// static object is a JSON blob sent from the backend with things like the
// stones on the board, the current principle variation, visit counts, etc.
// Layers that derive from DataLayer will check the given state object for a
// specific property. If the state object contains a matching property, the
// layer will update its copy of the state and signal that the board should
// be redrawn (by their update method returning true).
protected updateBoards(state: any) {
for (let board of this.boards) {
if (board.update(state)) {
board.draw();
}
}
}
protected onSearch(msg: SearchMsg) {
// Parse move variations.
msg.search = util.parseMoves(msg.search as string[], this.size);
msg.toPlay = util.parseGtpColor(msg.toPlay as string);
if (msg.pv) {
msg.pv = util.parseMoves(msg.pv as string[], this.size);
}
// Update the board state with contents of the search.
// Copies the properties named in `props` that are present in `msg` into the
// current position history.
// TODO(tommadams): It would be more flexible to allow the position history
// to store any/all properties return in the SearchMsg, without having to
// specify this property list.
const props = ['n', 'dq', 'pv', 'search'];
util.partialUpdate(msg, this.positionHistory[msg.moveNum], props);
// Update the boards.
if (msg.moveNum == this.activePosition.moveNum) {
this.updateBoards(msg);
}
}
protected onGameState(msg: GameStateMsg) {
// Parse the raw message.
let stoneMap: {[index: string]: Color} = {
'.': Color.Empty,
'X': Color.Black,
'O': Color.White,
};
let stones = [];
for (let i = 0; i < msg.board.length; ++i) {
stones.push(stoneMap[msg.board[i]]);
}
this.toPlay = util.parseGtpColor(msg.toPlay);
this.gameOver = msg.gameOver;
let lastMove =
msg.lastMove ? util.parseGtpMove(msg.lastMove, this.size) : null;
// Create a new position.
let position = new Position(msg.moveNum, stones, lastMove, this.toPlay);
this.positionHistory[msg.moveNum] = position;
if (msg.moveNum > this.activePosition.moveNum) {
this.activePosition = position;
this.updateBoards(this.activePosition);
}
if (this.gameOver) {
this.onGameOver();
}
}
}
export {
App,
Position,
SearchMsg,
GameStateMsg,
}