Method update

src/content/Backgrounds/Ballpit/Ballpit.jsx:438–521

(e)

    }
  }
  update(e) {
    const { config: t, center: i, positionData: s, sizeData: n, velocityData: o } = this;
    let r = 0;
    if (t.controlSphere0) {
      r = 1;
      F.fromArray(s, 0);
      F.lerp(i, 0.1).toArray(s, 0);
      V.set(0, 0, 0).toArray(o, 0);
    }
    for (let idx = r; idx < t.count; idx++) {
      const base = 3 * idx;
      I.fromArray(s, base);
      B.fromArray(o, base);
      B.y -= e.delta * t.gravity * n[idx];
      B.multiplyScalar(t.friction);
      B.clampLength(0, t.maxVelocity);
      I.add(B);
      I.toArray(s, base);
      B.toArray(o, base);
    }
    for (let idx = r; idx < t.count; idx++) {
      const base = 3 * idx;
      I.fromArray(s, base);
      B.fromArray(o, base);
      const radius = n[idx];
      for (let jdx = idx + 1; jdx < t.count; jdx++) {
        const otherBase = 3 * jdx;
        O.fromArray(s, otherBase);
        N.fromArray(o, otherBase);
        const otherRadius = n[jdx];
        _.copy(O).sub(I);
        const dist = _.length();
        const sumRadius = radius + otherRadius;
        if (dist < sumRadius) {
          const overlap = sumRadius - dist;
          j.copy(_)
            .normalize()
            .multiplyScalar(0.5 * overlap);
          H.copy(j).multiplyScalar(Math.max(B.length(), 1));
          T.copy(j).multiplyScalar(Math.max(N.length(), 1));
          I.sub(j);
          B.sub(H);
          I.toArray(s, base);
          B.toArray(o, base);
          O.add(j);
          N.add(T);
          O.toArray(s, otherBase);
          N.toArray(o, otherBase);
        }
      }
      if (t.controlSphere0) {
        _.copy(F).sub(I);
        const dist = _.length();
        const sumRadius0 = radius + n[0];
        if (dist < sumRadius0) {
          const diff = sumRadius0 - dist;
          j.copy(_.normalize()).multiplyScalar(diff);
          H.copy(j).multiplyScalar(Math.max(B.length(), 2));