rebuild method

void rebuild(
  1. List particles,
  2. List<int> visibleParticles
)

Rebuilds the entire tree from particle data.

Optimization Note: More efficient than clearing and reinserting when particle set hasn't changed significantly.

Implementation

void rebuild(List<dynamic> particles, List<int> visibleParticles) {
  buildFromParticles(particles, visibleParticles);
}