47 lines
1.5 KiB
JavaScript
47 lines
1.5 KiB
JavaScript
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class BackgroundLoader {
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/**
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* @param loader
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* @param verbose - should the loader log to the console
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*/
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constructor(loader, verbose = !1) {
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this._loader = loader, this._assetList = [], this._isLoading = !1, this._maxConcurrent = 1, this.verbose = verbose;
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}
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/**
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* Adds an array of assets to load.
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* @param assetUrls - assets to load
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*/
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add(assetUrls) {
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assetUrls.forEach((a) => {
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this._assetList.push(a);
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}), this.verbose && console.log("[BackgroundLoader] assets: ", this._assetList), this._isActive && !this._isLoading && this._next();
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}
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/**
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* Loads the next set of assets. Will try to load as many assets as it can at the same time.
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*
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* The max assets it will try to load at one time will be 4.
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*/
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async _next() {
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if (this._assetList.length && this._isActive) {
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this._isLoading = !0;
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const toLoad = [], toLoadAmount = Math.min(this._assetList.length, this._maxConcurrent);
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for (let i = 0; i < toLoadAmount; i++)
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toLoad.push(this._assetList.pop());
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await this._loader.load(toLoad), this._isLoading = !1, this._next();
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}
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}
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/**
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* Activate/Deactivate the loading. If set to true then it will immediately continue to load the next asset.
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* @returns whether the class is active
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*/
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get active() {
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return this._isActive;
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}
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set active(value) {
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this._isActive !== value && (this._isActive = value, value && !this._isLoading && this._next());
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}
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}
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export {
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BackgroundLoader
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};
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//# sourceMappingURL=BackgroundLoader.mjs.map
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