Vec2D min = new Vec2D(Float.MAX_VALUE, Float.MAX_VALUE);
Vec2D max = new Vec2D(Float.MIN_VALUE, Float.MIN_VALUE);
for (Iterator<VerletParticle2D> i = particles.iterator(); i.hasNext();) {
VerletParticle2D p = i.next();
min.minSelf(p);
max.maxSelf(p);
}
return new Rect(min, max);
}
public float getDrag() {