@phaserjs/phaser/colormatrix/Hue.js

Phaser 4

import { DEFAULT_COLOR_OFFSET } from "./const";
import { SetColorMatrix } from "./SetColorMatrix";
export function Hue(gameObject, rotation = 0, multiply = false) {
  rotation /= 180 * Math.PI;
  const cosR = Math.cos(rotation);
  const sinR = Math.sin(rotation);
  const w = 1 / 3;
  const sqrW = Math.sqrt(w);
  const a00 = cosR + (1 - cosR) * w;
  const a01 = w * (1 - cosR) - sqrW * sinR;
  const a02 = w * (1 - cosR) + sqrW * sinR;
  const a10 = w * (1 - cosR) + sqrW * sinR;
  const a11 = cosR + w * (1 - cosR);
  const a12 = w * (1 - cosR) - sqrW * sinR;
  const a20 = w * (1 - cosR) - sqrW * sinR;
  const a21 = w * (1 - cosR) + sqrW * sinR;
  const a22 = cosR + w * (1 - cosR);
  const values = [
    a00,
    a01,
    a02,
    0,
    a10,
    a11,
    a12,
    0,
    a20,
    a21,
    a22,
    0,
    0,
    0,
    0,
    1
  ];
  if (SetColorMatrix(gameObject.id, values, DEFAULT_COLOR_OFFSET, multiply)) {
    gameObject.color.colorMatrixEnabled = true;
  }
  return gameObject;
}