@fimbul-works/vec/dist/esm/2d/set-magnitude-2d.js

A comprehensive TypeScript vector math library providing 2D, 3D, and 4D vector operations with a focus on performance and type safety.

import { magnitude2D } from "./magnitude-2d.js";
/**
 * Sets the magnitude (length) of a 2D vector, maintaining its direction.
 * @param {ArrayVector2D} xy - Vector as `[x, y]`
 * @param {number} newMag - New magnitude
 * @param {number} [m] - Optional current magnitude (default: `magnitude2D(xy)`)
 * @returns {ArrayVector2D} The adjusted vector
 */
export const setMagnitude2D = (xy, newMag, m = magnitude2D(xy)) => [
    (xy[0] / m) * newMag,
    (xy[1] / m) * newMag,
];