35 lines
836 B
JavaScript
35 lines
836 B
JavaScript
import {LRUCache} from 'lru-cache';
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import Ecs from '@/ecs/ecs.js';
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import {withResolvers} from '@/util/promise.js';
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const cache = new LRUCache({
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max: 128,
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});
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export default class ClientEcs extends Ecs {
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constructor(specification) {
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super(specification);
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[
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'MaintainColliderHash',
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].forEach((defaultSystem) => {
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const System = this.system(defaultSystem);
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if (System) {
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System.active = true;
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}
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});
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}
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async readAsset(uri) {
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if (!cache.has(uri)) {
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const {promise, resolve, reject} = withResolvers();
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cache.set(uri, promise);
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fetch(new URL(uri, window.location.origin))
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.then(async (response) => {
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resolve(response.ok ? response.arrayBuffer() : new ArrayBuffer(0));
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})
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.catch(reject);
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}
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return cache.get(uri);
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}
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}
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