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223 lines (196 loc) · 6.61 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 {Annotation, Position} from './position'
import {Socket} from './gtp_socket'
import {Color, Move, N, Nullable, movesEqual, setBoardSize, stonesEqual, toKgs} from './base'
import {Board} from './board'
import * as util from './util'
interface PositionJson {
id: string;
parentId?: string;
moveNum: number;
toPlay: string;
stones: string;
move?: string;
gameOver: boolean;
comment?: string;
caps?: number[];
}
interface PositionUpdateJson {
id: string;
n?: number;
q?: number;
pv?: string;
variations?: string[][];
search?: string[];
childN?: number[];
childQ?: number[];
}
// App base class used by the different Minigui UI implementations.
abstract class App {
// WebSocket connection to the Miniui backend server.
protected gtp = new Socket();
// True if Minigo is processing a genmove command.
protected engineBusy = false;
// The root of the game tree, an empty board.
protected rootPosition: Position;
// The currently active position.
protected activePosition: Position;
protected positionMap = new Map<string, Position>();
protected abstract onGameOver(): void;
protected abstract onPositionUpdate(position: Position, update: Position.Update): void;
protected abstract onNewPosition(position: Position): void;
constructor() {
this.gtp.onData('mg-update', (j: PositionUpdateJson) => {
let position = this.positionMap.get(j.id);
if (position === undefined) {
// Just after refreshing the page, the backend will still be sending
// position updates if pondering is enabled. Ignore updates for any
// positions we don't know about.
return;
}
let update = this.newPositionUpdate(j);
position.update(update);
this.onPositionUpdate(position, update);
});
this.gtp.onData('mg-position', (j: PositionJson | PositionUpdateJson) => {
let position = this.newPosition(j as PositionJson);
let update = this.newPositionUpdate(j);
position.update(update);
this.onNewPosition(position);
if (position.gameOver) {
this.onGameOver();
}
});
}
private newPosition(j: PositionJson): Position {
let position = this.positionMap.get(j.id);
if (position !== undefined) {
return position;
}
for (let prop of ['stones', 'toPlay', 'gameOver']) {
if (!j.hasOwnProperty(prop)) {
throw new Error(`missing required property: ${prop}`);
}
}
let def = j as PositionJson;
let stones: Color[] = [];
const stoneMap: {[index: string]: Color} = {
'.': Color.Empty,
'X': Color.Black,
'O': Color.White,
};
for (let i = 0; i < def.stones.length; ++i) {
stones.push(stoneMap[def.stones[i]]);
}
let toPlay = util.parseColor(def.toPlay);
let gameOver = def.gameOver;
if (def.parentId === undefined) {
// No parent, this must be the root.
if (def.move != null) {
throw new Error('move mustn\'t be set for root position');
}
position = this.rootPosition;
position.id = def.id;
} else {
// The position has a parent, which must exist in the positionMap.
let parent = this.positionMap.get(def.parentId);
if (parent === undefined) {
throw new Error(
`Can't find parent with id ${def.parentId} for position ${def.id}`);
}
if (def.move == null) {
throw new Error('new positions must specify move');
}
let move = util.parseMove(def.move);
position = parent.addChild(def.id, move, stones, gameOver);
}
if (j.comment) {
position.comment = j.comment;
}
if (j.caps !== undefined) {
position.captures[0] = j.caps[0];
position.captures[1] = j.caps[1];
}
if (position.toPlay != toPlay) {
throw new Error(`expected ${position.toPlay}, got ${toPlay}`);
}
this.positionMap.set(position.id, position);
return position;
}
private newPositionUpdate(j: PositionUpdateJson): Position.Update {
let update: Position.Update = {}
if (j.n != null) { update.n = j.n; }
if (j.q != null) { update.q = j.q; }
if (j.variations != null) {
update.variations = {};
for (let key in j.variations) {
if (key == null) {
continue;
}
update.variations[key] = util.parseMoves(j.variations[key]);
}
}
if (j.childN != null) {
update.childN = j.childN;
}
if (j.childQ != null) {
update.childQ = [];
for (let q of j.childQ) {
update.childQ.push(q / 1000);
}
}
return update;
}
protected connect() {
let uri = `http://${document.domain}:${location.port}/minigui`;
let params = new URLSearchParams(window.location.search);
let p = params.get("gtp_debug");
let debug = (p != null) && (p == "" || p == "1" || p.toLowerCase() == "true");
return this.gtp.connect(uri, debug).then((size: number) => {
// setBoardSize sets the global variable N to the board size for the game
// (as provided by the backend engine). The code uses N from hereon in.
setBoardSize(size);
let stones = new Array<Color>(N * N);
stones.fill(Color.Empty);
this.rootPosition = new Position(
'dummy-root', null, stones, null, Color.Black, false, true);
this.activePosition = this.rootPosition;
});
}
protected newGame() {
this.positionMap.clear();
this.rootPosition.children = [];
this.activePosition = this.rootPosition;
this.gtp.send('clear_board');
this.gtp.send('info');
// Iterate over the data-* attributes attached to the main minigui container
// element, looking for data-gtp-* attributes. Send any matching ones as GTP
// commands to the backend.
let containerElem = document.querySelector('.minigui') as HTMLElement;
if (containerElem != null) {
let dataset = containerElem.dataset;
for (let key in dataset) {
if (key.startsWith('gtp')) {
let cmd = key.substr(3).toLowerCase();
let args = dataset[key];
this.gtp.send(`${cmd} ${args}`);
}
}
}
}
}
export {
App,
}