Method update

src/localization/captions/Caption.js:56–64

* Updates content based on time passed. * This should be called every frame that the caption is active. * * @param {Number} deltaTime - Time in seconds since last frame. * @memberof Caption

(deltaTime)

   * @memberof Caption
   */
  update(deltaTime) {
    const time = this.time + deltaTime * 1000;
    if (time === this.time) {
      return;
    }

    this.updateState(time, this.time);
    this.time = time;
  }

  /**
   * Handles calling callbacks and updating caption's current state.