Shortcuts: For common scenarios, we pre-calculate the travel time/distance (the "shortcut") between border points within the same cluster and also to border points of immediately adjacent clusters.
核心代码与完整示例： my-three-app，更多细节参见heLLoword翻译官方下载
curr = curr-next;，这一点在旺商聊官方下载中也有详细论述
Multiplication and division are too slow for Opus 4.6.，这一点在爱思助手下载最新版本中也有详细论述