duckengine/src/utils/smoothArray.ts

A 2D Game Engine for the web.

import averageArray from './averageArray';

export default function smoothOut(vector: number[], variance: number) {
	const t_avg = averageArray(vector) * variance;
	const ret = Array(vector.length);
	for (let i = 0; i < vector.length; i++) {
		(function () {
			const prev = i > 0 ? ret[i - 1] : vector[i];
			const next = i < vector.length ? vector[i] : vector[i - 1];
			ret[i] = averageArray([
				t_avg,
				averageArray([prev, vector[i], next]),
			]);
		})();
	}
	return averageArray(ret);
}