getAllParticles method
Collects all particles in this subtree
Implementation
List<QuadTreeParticle> getAllParticles([
List<QuadTreeParticle>? allParticles,
]) {
allParticles ??= [];
allParticles.addAll(particles);
for (final CompressedQuadTreeNode child in children.values) {
child.getAllParticles(allParticles);
}
return allParticles;
}