private void update(List<Entity> moved, ComponentMapper<Mass> mm, ComponentMapper<Position> pm) {
if (hasEntity()) {
if (entity.isActive()) {
VectorD2 p = pm.get(entity).vec;
if (!contains(p)) {
moved.add(entity);
--size;
this.mass = 0f;
this.massVector.set(0f, 0f);
entity = null;
} else {
mass = mm.get(entity).mass;
massVector.set(p).mul(mass);
}
}
} else if (hasChildren()) {
bl.update(moved, mm, pm);
br.update(moved, mm, pm);
tl.update(moved, mm, pm);
tr.update(moved, mm, pm);
size = bl.size + br.size + tl.size + tr.size;
mass = bl.mass + br.mass + tl.mass + tr.mass;
massVector.set(0f, 0f);
massVector.add(bl.massVector).add(br.massVector);
massVector.add(tl.massVector).add(tr.massVector);
}
}
public void update(ComponentMapper<Mass> mm, ComponentMapper<Position> pm) {
List<Entity> moved = new ArrayList<Entity>();
update(moved, mm, pm);
for (Entity e : moved) {
add(e, mm, pm);
}
}