pocket-physics/esm/v2.test.js

Verlet physics extracted from pocket-ces demos

import { add, copy, distance, distance2, dot, normal, normalize, perpDot, rotate2d, scale, sub, translate, v2, } from "./v2";
test("generics + nominal types", () => {
    const v0 = v2();
    const v1 = v2();
    const out = v2();
    // @ts-expect-error
    add(out, v0, v1);
    // @ts-expect-error
    sub(out, v0, v1);
    // @ts-expect-error
    dot(v0, v2());
    // @ts-expect-error
    copy(out, v1);
    const c = copy(v2(), v1);
    const s = sub(v2(), v0, v1);
    // @ts-expect-error
    scale(out, v0, 5);
    // @ts-expect-error
    distance(v1, v2());
    // @ts-expect-error
    distance2(v1, v2());
    // @ts-expect-error
    normalize(v1, v2());
    // @ts-expect-error
    normal(out, v0, v1);
    // @ts-expect-error
    perpDot(v1, v2());
    // @ts-expect-error
    translate(out, v0, v1);
    // @ts-expect-error
    rotate2d(out, v0, v1, Math.PI / 2);
});
test("rotate", () => {
    const out = v2();
    const origin = v2();
    const point = v2(1, 0);
    rotate2d(out, point, origin, Math.PI / 2);
    expect(out).toMatchInlineSnapshot(`
    Object {
      "x": 6.123233995736766e-17,
      "y": 1,
    }
  `);
});