shadow$provide.module$node_modules$pixi_DOT_js$lib$assets$BackgroundLoader = function(global, require, module, exports) {
  class BackgroundLoader {
    constructor(loader, verbose = !1) {
      this._loader = loader;
      this._assetList = [];
      this._isLoading = !1;
      this._maxConcurrent = 1;
      this.verbose = verbose;
    }
    add(assetUrls) {
      assetUrls.forEach(a => {
        this._assetList.push(a);
      });
      this.verbose && console.log("[BackgroundLoader] assets: ", this._assetList);
      this._isActive && !this._isLoading && this._next();
    }
    async _next() {
      if (this._assetList.length && this._isActive) {
        this._isLoading = !0;
        const toLoad = [], toLoadAmount = Math.min(this._assetList.length, this._maxConcurrent);
        for (let i = 0; i < toLoadAmount; i++) {
          toLoad.push(this._assetList.pop());
        }
        await this._loader.load(toLoad);
        this._isLoading = !1;
        this._next();
      }
    }
    get active() {
      return this._isActive;
    }
    set active(value) {
      this._isActive !== value && (this._isActive = value) && !this._isLoading && this._next();
    }
  }
  exports.BackgroundLoader = BackgroundLoader;
};

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