@phaserjs/phaser/math/quaternion/QuatRotateZ.js

Phaser 4

import { Quaternion } from "./Quaternion";
export function QuatRotateZ(a, angle, out = new Quaternion()) {
  angle *= 0.5;
  const { x, y, z, w } = a;
  const bz = Math.sin(angle);
  const bw = Math.cos(angle);
  return out.set(x * bw + y * bz, y * bw - x * bz, z * bw + w * bz, w * bw - z * bz);
}