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4.4 KiB
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4.4 KiB
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{"version":3,"file":"BackgroundLoader.mjs","sources":["../../src/assets/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 assets\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 void 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 void 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 void this._next();\n }\n }\n}\n"],"names":[],"mappings":";AAOO,MAAM,gBACb,CAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAqBI,WAAA,CAAY,MAAgB,EAAA,OAAA,GAAU,KACtC,EAAA;AACI,IAAA,IAAA,CAAK,OAAU,GAAA,MAAA,CAAA;AACf,IAAA,IAAA,CAAK,aAAa,EAAC,CAAA;AACnB,IAAA,IAAA,CAAK,UAAa,GAAA,KAAA,CAAA;AAClB,IAAA,IAAA,CAAK,cAAiB,GAAA,CAAA,CAAA;AACtB,IAAA,IAAA,CAAK,OAAU,GAAA,OAAA,CAAA;AAAA,GACnB;AAAA;AAAA;AAAA;AAAA;AAAA,EAMO,IAAI,SACX,EAAA;AACI,IAAU,SAAA,CAAA,OAAA,CAAQ,CAAC,CACnB,KAAA;AACI,MAAK,IAAA,CAAA,UAAA,CAAW,KAAK,CAAC,CAAA,CAAA;AAAA,KACzB,CAAA,CAAA;AAED,IAAA,IAAI,KAAK,OACT,EAAA;AAEI,MAAQ,OAAA,CAAA,GAAA,CAAI,6BAA+B,EAAA,IAAA,CAAK,UAAU,CAAA,CAAA;AAAA,KAC9D;AAEA,IAAA,IAAI,IAAK,CAAA,SAAA,IAAa,CAAC,IAAA,CAAK,UAC5B,EAAA;AACI,MAAA,KAAK,KAAK,KAAM,EAAA,CAAA;AAAA,KACpB;AAAA,GACJ;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAOA,MAAc,KACd,GAAA;AACI,IAAA,IAAI,IAAK,CAAA,UAAA,CAAW,MAAU,IAAA,IAAA,CAAK,SACnC,EAAA;AACI,MAAA,IAAA,CAAK,UAAa,GAAA,IAAA,CAAA;AAElB,MAAA,MAAM,SAAS,EAAC,CAAA;AAEhB,MAAA,MAAM,eAAe,IAAK,CAAA,GAAA,CAAI,KAAK,UAAW,CAAA,MAAA,EAAQ,KAAK,cAAc,CAAA,CAAA;AAEzE,MAAA,KAAA,IAAS,CAAI,GAAA,CAAA,EAAG,CAAI,GAAA,YAAA,EAAc,CAClC,EAAA,EAAA;AACI,QAAA,MAAA,CAAO,IAAK,CAAA,IAAA,CAAK,UAAW,CAAA,GAAA,EAAK,CAAA,CAAA;AAAA,OACrC;AAEA,MAAM,MAAA,IAAA,CAAK,OAAQ,CAAA,IAAA,CAAK,MAAM,CAAA,CAAA;AAE9B,MAAA,IAAA,CAAK,UAAa,GAAA,KAAA,CAAA;AAElB,MAAA,KAAK,KAAK,KAAM,EAAA,CAAA;AAAA,KACpB;AAAA,GACJ;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,IAAI,MACJ,GAAA;AACI,IAAA,OAAO,IAAK,CAAA,SAAA,CAAA;AAAA,GAChB;AAAA,EAEA,IAAI,OAAO,KACX,EAAA;AACI,IAAA,IAAI,KAAK,SAAc,KAAA,KAAA;AAAO,MAAA,OAAA;AAE9B,IAAA,IAAA,CAAK,SAAY,GAAA,KAAA,CAAA;AAEjB,IAAI,IAAA,KAAA,IAAS,CAAC,IAAA,CAAK,UACnB,EAAA;AACI,MAAA,KAAK,KAAK,KAAM,EAAA,CAAA;AAAA,KACpB;AAAA,GACJ;AACJ;;;;"} |