@prescott/geo-pattern/dist/pattern-selector.js

Create beautiful generative geometric background images from a string.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PatternSelector = void 0;
const pattern_store_1 = require("./pattern-store");
class PatternSelector {
    constructor(patterns, seed, store = pattern_store_1.defaultStore) {
        this.seed = seed;
        this.store = store;
        this.patterns = this.fetchPatterns(patterns);
    }
    select() {
        const index = Math.min(this.seed.read(20, 1), this.patterns.length - 1);
        return this.patterns[index];
    }
    fetchPatterns(patterns) {
        const fetched = Array.from(new Set(patterns))
            .map((pattern) => this.store.get(pattern))
            .filter((pattern) => !!pattern);
        return fetched.length > 0 ?
            fetched :
            Array.from(this.store.values());
    }
}
exports.PatternSelector = PatternSelector;
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