pocket-physics/esm/project-capsule.js

Verlet physics extracted from pocket-ces demos

import { v2, sub, normalize, scale, add } from "./v2";
// preallocations
const v = v2();
const direction = v2();
const radiusSegment = v2();
/**
 * Compute the leading edge of a circular moving object given a radius: cpos + radius in the direction of velocity.
 */
export const projectCposWithRadius = (out, p, radius) => {
    sub(v, p.cpos, p.ppos);
    normalize(direction, v);
    scale(radiusSegment, direction, radius);
    add(out, radiusSegment, p.cpos);
    return out;
};