Method getNextPos

src/utility.js:104–113

(curr, dest, speed)

  }

  static getNextPos(curr, dest, speed) {
    if (speed > 0 && curr + speed >= dest) {
      return dest;
    }

    if (speed < 0 && curr + speed <= dest) {
      return dest;
    }
    return curr + speed;
  }

  static shuffleArray(a) {
    let j = 0;