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Real game engines use this pattern (or its 3D cousin, the Octree) for broad-phase collision detection: the quadtree quickly identifies candidate pairs, and a more expensive narrow-phase check tests the actual geometry.
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ВсеПрибалтикаУкраинаБелоруссияМолдавияЗакавказьеСредняя Азия
Трамп высказался о непростом решении по Ирану09:14
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Фото: Liesa Johannssen / Reuters，详情可参考同城约会
Credit: Amazon MGM Studios