38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
import { EJSON } from 'meteor/ejson';
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import createGraph from 'ngraph.graph';
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export default class CreatureComputation {
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constructor(properties){
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// Set up fields
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this.originalPropsById = {};
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this.propsById = {};
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this.propsWithTag = {};
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this.scope = {};
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this.props = properties;
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this.dependencyGraph = createGraph();
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// Store properties for easy access later
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properties.forEach(prop => {
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// Store a copy of the unmodified prop
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// EJSON clone is ~4x faster than lodash cloneDeep for EJSONable objects
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this.originalPropsById[prop._id] = EJSON.clone(prop);
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// Store by id
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this.propsById[prop._id] = prop;
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// Store sets of ids in each tag
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if (prop.tags){
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prop.tags.forEach(tag => {
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if (this.propsWithTag[tag]){
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this.propsWithTag[tag].push(prop._id);
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} else {
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this.propsWithTag[tag] = [prop._id];
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}
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});
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}
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// Store the prop in the dependency graph
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this.dependencyGraph.addNode(prop._id, prop);
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});
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}
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}
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