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156 lines (136 loc) · 5.13 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, setBoardSize} from './base'
import {Board} from './board'
import * as util from './util'
// 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 onPositionUpdate(position: Position, update: Position.Update): void;
protected abstract onNewPosition(position: Position): void;
// We track game over state separately from the gameOver property of the
// latest position because when one player resigns, the game ends without a
// new Position with gameOver == true being generated.
protected gameOver = false;
constructor() {
this.gtp.onData('mg-update', (j: Position.Update) => {
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;
}
position.update(j);
this.onPositionUpdate(position, j);
});
this.gtp.onData('mg-position', (j: Position.Definition | Position.Update) => {
let position: Position;
let def = j as Position.Definition;
if (def.move == null) {
// No parent, this must be the root.
let p = this.positionMap.get(def.id);
if (p == null) {
p = new Position(def);
this.rootPosition = p;
}
position = this.rootPosition;
} else {
// Get the parent.
if (def.parentId === undefined) {
throw new Error('child node must have a valid parentId');
}
let parent = this.positionMap.get(def.parentId);
if (parent == null) {
throw new Error(`couldn't find parent ${def.parentId}`);
}
// See if we already have this position.
let child = parent.getChild(util.parseMove(def.move));
if (child != null) {
position = child;
} else {
position = new Position(def);
parent.addChild(position);
}
}
position.update(j);
this.onNewPosition(position);
this.positionMap.set(position.id, position);
});
}
protected onGameOver() {
this.gameOver = true;
}
protected connect() {
let uri = `http://${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 fetch('config').then((response) => {
return response.json();
}).then((cfg: any) => {
// TODO(tommadams): Give cfg a real type.
// 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(cfg.boardSize);
let stones = new Array<Color>(N * N);
stones.fill(Color.Empty);
this.rootPosition = new Position({
id: 'dummy-root',
moveNum: 0,
toPlay: 'b',
});
this.activePosition = this.rootPosition;
if (cfg.players.length != 1) {
throw new Error(`expected 1 player, got ${cfg.players}`);
}
return this.gtp.connect(uri, cfg.players[0], debug);
});
}
protected newGame(): Promise<any> {
this.gameOver = false;
this.positionMap.clear();
this.rootPosition.children = [];
this.activePosition = this.rootPosition;
// TODO(tommadams): Move this functionality into .ctl files.
// Iterate over the data-* attributes attached to the main minigui container
// element, looking for data-gtp-* attributes. Send any matching ones as GTP
// commands to the backend.
let containerElem = document.querySelector('.minigui') as HTMLElement;
if (containerElem != null) {
let dataset = containerElem.dataset;
for (let key in dataset) {
if (key.startsWith('gtp')) {
let cmd = key.substr(3).toLowerCase();
let args = dataset[key];
this.gtp.send(`${cmd} ${args}`);
}
}
}
return this.gtp.send('clear_board');
}
}
export {
App,
}