message: tweak BoundaryHelper performance
diff: /**
  - * Copyright (c) 2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
  + * Copyright (c) 2020-2023 mol* contributors, licensed under MIT, See LICENSE file for more info.
  *
  * @author Alexander Rose <alexander.rose@weirdbyte.de>
  */
  @@ -13,6 +13,7 @@ import { Box3D } from './primitives/box3d';
  export class BoundaryHelper {
  private dir: Vec3[];
  + private dirLength: number;
  private minDist: number[] = [];
  private maxDist: number[] = [];
  @@ -56,13 +57,13 @@ export class BoundaryHelper {
  }
  includePosition(p: Vec3) {
  - for (let i = 0, il = this.dir.length; i < il; ++i) {
  + for (let i = 0; i < this.dirLength; ++i) {
  this.computeExtrema(i, p);
  }
  }
  includePositionRadius(center: Vec3, radius: number) {
  - for (let i = 0, il = this.dir.length; i < il; ++i) {
  + for (let i = 0; i < this.dirLength; ++i) {
  this.computeSphereExtrema(i, center, radius);
  }
  }
  @@ -101,7 +102,7 @@ export class BoundaryHelper {
  }
  reset() {
  - for (let i = 0, il = this.dir.length; i < il; ++i) {
  + for (let i = 0; i < this.dirLength; ++i) {
  this.minDist[i] = Infinity;
  this.maxDist[i] = -Infinity;
  this.extrema[i * 2] = Vec3();
  @@ -112,6 +113,7 @@ export class BoundaryHelper {
  constructor(quality: EposQuality) {
  this.dir = getEposDir(quality);
  + this.dirLength = this.dir.length;
  this.reset();
  }
  }
  