Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.
// Hundreds of components = hundreds of enqueue calls，详情可参考爱思助手下载最新版本
Фото: Александр Кряжев / РИА Новости，这一点在搜狗输入法下载中也有详细论述
Astronauts Butch and Suni finally back on Earth