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1 line
3.7 KiB
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{"version":3,"file":"BackgroundLoader.mjs","sources":["../src/BackgroundLoader.ts"],"sourcesContent":["import type { Loader } from './loader/Loader';\nimport type { ResolvedAsset } from './types';\n\n/**\n * Quietly Loads assets in the background.\n * @memberof PIXI\n */\nexport class BackgroundLoader\n{\n /** Whether or not the loader should continue loading. */\n private _isActive: boolean;\n\n /** Assets to load. */\n private readonly _assetList: ResolvedAsset[];\n\n /** Whether or not the loader is loading. */\n private _isLoading: boolean;\n\n /** Number of assets to load at a time. */\n private readonly _maxConcurrent: number;\n\n /** Should the loader log to the console. */\n public verbose: boolean;\n private readonly _loader: Loader;\n\n /**\n * @param loader\n * @param verbose - should the loader log to the console\n */\n constructor(loader: Loader, verbose = false)\n {\n this._loader = loader;\n this._assetList = [];\n this._isLoading = false;\n this._maxConcurrent = 1;\n this.verbose = verbose;\n }\n\n /**\n * Adds an array of assets to load.\n * @param assetUrls - assets to load\n */\n public add(assetUrls: ResolvedAsset[]): void\n {\n assetUrls.forEach((a) =>\n {\n this._assetList.push(a);\n });\n\n if (this.verbose)\n {\n // eslint-disable-next-line no-console\n console.log('[BackgroundLoader] assets: ', this._assetList);\n }\n\n if (this._isActive && !this._isLoading)\n {\n this._next();\n }\n }\n\n /**\n * Loads the next set of assets. Will try to load as many assets as it can at the same time.\n *\n * The max assets it will try to load at one time will be 4.\n */\n private async _next(): Promise<void>\n {\n if (this._assetList.length && this._isActive)\n {\n this._isLoading = true;\n\n const toLoad = [];\n\n const toLoadAmount = Math.min(this._assetList.length, this._maxConcurrent);\n\n for (let i = 0; i < toLoadAmount; i++)\n {\n toLoad.push(this._assetList.pop());\n }\n\n await this._loader.load(toLoad);\n\n this._isLoading = false;\n\n this._next();\n }\n }\n\n /**\n * Activate/Deactivate the loading. If set to true then it will immediately continue to load the next asset.\n * @returns whether the class is active\n */\n get active(): boolean\n {\n return this._isActive;\n }\n\n set active(value: boolean)\n {\n if (this._isActive === value) return;\n\n this._isActive = value;\n\n if (value && !this._isLoading)\n {\n this._next();\n }\n }\n}\n"],"names":[],"mappings":"AAOO,MAAM,iBACb;AAAA;AAAA;AAAA;AAAA;AAAA,EAqBI,YAAY,QAAgB,UAAU,IACtC;AACI,SAAK,UAAU,QACf,KAAK,aAAa,CAAC,GACnB,KAAK,aAAa,IAClB,KAAK,iBAAiB,GACtB,KAAK,UAAU;AAAA,EACnB;AAAA;AAAA;AAAA;AAAA;AAAA,EAMO,IAAI,WACX;AACc,cAAA,QAAQ,CAAC,MACnB;AACS,WAAA,WAAW,KAAK,CAAC;AAAA,IAAA,CACzB,GAEG,KAAK,WAGL,QAAQ,IAAI,+BAA+B,KAAK,UAAU,GAG1D,KAAK,aAAa,CAAC,KAAK,cAExB,KAAK;EAEb;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAOA,MAAc,QACd;AACI,QAAI,KAAK,WAAW,UAAU,KAAK,WACnC;AACI,WAAK,aAAa;AAEZ,YAAA,SAAS,CAAA,GAET,eAAe,KAAK,IAAI,KAAK,WAAW,QAAQ,KAAK,cAAc;AAEhE,eAAA,IAAI,GAAG,IAAI,cAAc;AAE9B,eAAO,KAAK,KAAK,WAAW,IAAK,CAAA;AAG/B,YAAA,KAAK,QAAQ,KAAK,MAAM,GAE9B,KAAK,aAAa,IAElB,KAAK,MAAM;AAAA,IACf;AAAA,EACJ;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,IAAI,SACJ;AACI,WAAO,KAAK;AAAA,EAChB;AAAA,EAEA,IAAI,OAAO,OACX;AACQ,SAAK,cAAc,UAEvB,KAAK,YAAY,OAEb,SAAS,CAAC,KAAK,cAEf,KAAK,MAAM;AAAA,EAEnB;AACJ;"} |