When I share stuff I'm working on, people frequently ask how I make games and are often surprised (and sometimes concerned?) when I tell them I don't use commercial game engines. There's an assumption around making games without a big tool like Unity or Unreal that you're out there hand writing your own assembly instruction by instruction.
Colin C. Campbell，这一点在51吃瓜中也有详细论述
。关于这个话题，体育直播提供了深入分析
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.
After that, we can start optimizing the other parts.，这一点在体育直播中也有详细论述
第二百五十九条 预约保险合同下分批运输货物的名称、数量，装运货物的船名、航线，保险价值和保险金额等具体事项，被保险人应当在每一次运输前向保险人如实申报。