Waves Platform Mainnet (1 .. 1257702)

shot.js

// https://github.com/deemru/w8io/tree/15842edd4235bd3eabc127deac61195257e351ba
// https://github.com/GoogleChrome/puppeteer
// ffmpeg -framerate 30 -i "w8io_(%%d).png" -c:v libx264 -preset slow -crf 16 -vf fps=30 _w8io.mp4
// https://www.youtube.com/watch?v=n7A-KQ15ynY

var promises = [];
var maxBrowsers = 8;
var maxPromises = maxBrowsers;
showtime();

async function doshot( fs, browser, n, res, block )
{
    var w8url = 'http://127.0.0.1:81/w8io/GENERATORS/' + res + '/' + block;
    var w8file = 'w8io_(' + n + ').png';

    if( fs.existsSync( w8file ) )
    {
        console.log( w8url + ' (skip)' );
        return;
    }

    console.log( w8url );
    var page = await browser.newPage();
    await page.setViewport( { width: 3840, height: 2160 } );
    await page.goto( w8url, { timeout: 0 } );
    await page.screenshot( { path: w8file } );
    await page.close();
    console.log( w8file );
}

async function workit( work, finalize = false )
{
    promises.push( work );
    if( finalize || promises.length >= maxPromises )
    {
        await Promise.all( promises );
        promises = [];
    }
}

async function showtime()
{
    var fs = require('fs');
    var puppeteer = require( 'puppeteer' );
    var browsers = [];

    for( i = 0; i < maxBrowsers; i++ )
        browsers[i] = await puppeteer.launch();

    var i;
    var w8url;
    var w8file;

    var n = 0;
    var c = 300;
    var Q = 128;
    var res = 128;
    var res_this = 0;
    var speed = 1;
    var block = 0;

    // GENESIS (128)
    {
        c = 300;
        for( i = 0; i < c; i++ )
        {
            n++;
            console.log( n );
            block++;

            await workit( doshot( fs, browsers[i % maxBrowsers], n, res, block ) );
        }
    }

    // compactify
    {
        c = 120 + 480;
        for( i = 0; i < c; i++ )
        {
            n++;
            console.log( n );
            res = res + ( res / 128 ) * Math.min( 1, ( i + 1 ) / 120 );
            speed = res / Q + res / Q * Math.min( 1, ( i + 1 ) / 120 );
            block = block + speed;

            await workit( doshot( fs, browsers[i % maxBrowsers], n, Math.round( res ), Math.round( block ) ) );
        }
    }

    // >> 10112/79
    {
        c = 120;
        for( i = 0; i < c; i++ )
        {
            n++;
            console.log( n );
            res_this = res + ( i + 1 ) / c * ( 10112 - res );
            speed = res_this / Q * ( 2 - ( i + 1 ) / c );
            block += speed;

            await workit( doshot( fs, browsers[i % maxBrowsers], n, Math.round( res_this ), Math.round( block ) ) );
        }

        res = res_this;
    }

    // 10112 ( >> 1257746 )
    {
        res = Math.round( res );
        block = Math.round( block );
        c = Math.floor( ( 1257746 - block ) / 79 );
        for( i = 0; i < c; i++ )
        {
            n++;
            console.log( n );
            block += speed;

            await workit( doshot( fs, browsers[i % maxBrowsers], n, res, block ) );
        }
    }

    await workit( null, true );
    console.log( 'SUCCESS' );
    for( i = 0; i < maxBrowsers; i++ )
        await browsers[i].close();
};