中文说明：
这属于絮凝分形成长模拟中的DLA模型，让单个粒子去碰撞总粒子，然后判断是否聚集黏附。
English Description：
This belongs to the DLA model in flocculation fractal growth simulation, which allows a single particle to collide with the total particles, and then determines whether the particles are aggregated and adhered.