@g20/player/dist/commonjs/index.js

Window Animation Frame Player

/**
* @g20/player 1.0.0-alpha.46
* (c) David Geo Holmes david.geo.holmes@gmail.com
* Released under the MIT License.
*/
'use strict';

var reactive = require('@g20/reactive');

class Player {
    #board;
    #frameCount;
    /**
     * The handle of the last frame requested.
     */
    #handle = null;
    constructor(board, callback) {
        this.#board = board;
        this.#frameCount = reactive.effect(() => {
            callback(board.frameCount);
        });
    }
    dispose() {
        if (this.#frameCount) {
            this.#frameCount.dispose();
        }
    }
    play() {
        // eslint-disable-next-line @typescript-eslint/no-unused-vars
        const animate = (timestamp) => {
            this.#handle = null;
            this.#board.update();
            this.#handle = window.requestAnimationFrame(animate);
        };
        this.#handle = window.requestAnimationFrame(animate);
    }
    pause() {
        if (typeof this.#handle === "number") {
            window.cancelAnimationFrame(this.#handle);
            this.#handle = null;
        }
    }
}

exports.Player = Player;
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