import Vector4 from "grimoirejs-math/ref/Vector4";
const rc = 511;
const gc = rc << 8;
const bc = gc << 8;
const ac = bc << 8;
export default class MeshIndexCalculator {
  public static fromIndex(index: number): Vector4 {
    return new Vector4((index & rc) / 255, ((index & gc) >> 8) / 255, ((index & bc) >> 16) / 255, ((index & ac) >> 24) / 255);
  }

  public static fromColor(color: Uint8Array): number {
    return color[0] + (color[1] << 8) + (color[2] << 16) + (color[3] << 24);
  }
}