index.js

var fs = require('hexo-fs');
var path = require('path');
var url = require("url");

var generators = new Array();

var models = {
  "Epsilon2.1": "Epsilon2.1/Epsilon2.1.model.json",
  "Gantzert_Felixander": "Gantzert_Felixander/model.json",
  "haru": "haru/haru.model.json",
  "miku": "miku/miku.model.json",
  "ni-j": "nito/ni-j.model.json",
  "nico": "nito/nico.model.json",
  "nito": "nito/nito.model.json",
  "nipsilon": "nito/nipsilon.model.json",
  "nietzsche": "nito/nietzsche.model.json",
  "shizuku": "shizuku/shizuku.model.json",
  "tsumiki": "tsumiki/tsumiki.model.json",
  "wanko": "wanko/wanko.model.json",
  "z16": "z16/z16.model.json",
  "hibiki": "hibiki/hibiki.model.json",
  "koharu": "koharu/koharu.model.json",
  "haruto": "haruto/haruto.model.json",
  "Unitychan": "Unitychan/unitychan.model.json",
  "tororo": "tororo/tororo.model.json",
  "hijiki": "hijiki/hijiki.model.json",
}

function registerFile(pathname, file) {
  generators.push({
    path: pathname,
    data: function () {
      return fs.createReadStream(file)
    }
  });
}

function registerDir(pathname, dir) {
  var lsDir = fs.listDirSync(dir)
  lsDir.forEach(function (file) {
    registerFile(pathname + file, path.resolve(dir, file));
  }, this);
}

hexo.extend.generator.register('live2d', function (locals) {
  return generators;
});

registerDir('live2d/assets/', path.resolve(__dirname, './assets'));
registerFile('live2d/script.js', path.resolve(__dirname, './dist/bundle.js'))

hexo.extend.helper.register('live2d', function (config) {
  var config = Object.assign(
    {
      model:"z16",
      width: 150,
      height: 300,
      className: "live2d",
      id: "live2dcanvas",
      bottom: -20
    },
    config, 
    hexo.config.live2d
  );
  return `
    <script type="text/javascript" src="/live2d/script.js"></script>
    <canvas id="${config.id}" width="${config.width}" height="${config.height}" class="${config.className}"></canvas>
    <style>
      #${config.id} {
        position: fixed;
        right: 0px;
        z-index: 999;
        pointer-events: none;
        bottom: ${config.bottom}px;
      }
    </style>
    <script>loadlive2d(${JSON.stringify(config.id)} ,${JSON.stringify(url.resolve("/live2d/assets/",models[config.model]))})</script>
  `
});