session = we.getSessionManager().get(player);
Vector center = session.getPlacementPosition(player);
editSession = session.createEditSession(player);
List<? extends Entity> entities;
if (radius >= 0) {
CylinderRegion region = CylinderRegion.createRadius(editSession, center, radius);
entities = editSession.getEntities(region);
} else {
entities = editSession.getEntities();
}
visitors.add(new EntityVisitor(entities.iterator(), remover.createFunction(editSession.getWorld().getWorldData().getEntityRegistry())));