Method back

adev/src/app/features/home/animation/animation.ts:219–236

* Go back in time. * * @param timestep Custom timestep different from the config one * @returns

(timestep?: number)

   * @returns
   */
  back(timestep?: number) {
    this.pause();

    if (!this.rules.length) {
      console.warn("Animation: Can't go back without a definition");
      return;
    }
    timestep = timestep ?? this.config.timestep;

    const time = this.currentTime - timestep;

    if (time >= 0) {
      this.updateFrame(time);

      // Incomplete the animation, if it was completed.
      this.completed = false;
    }
  }

  /** Reset the animation. */
  reset() {