public void flora(Player player, EditSession editSession, @Selection Region region, @Optional("10") @Range(min = 0, max = 100) double density) throws WorldEditException {
density = density / 100;
FloraGenerator generator = new FloraGenerator(editSession);
GroundFunction ground = new GroundFunction(new ExistingBlockMask(editSession), generator);
LayerVisitor visitor = new LayerVisitor(asFlatRegion(region), minimumBlockY(region), maximumBlockY(region), ground);
visitor.setMask(new NoiseFilter2D(new RandomNoise(), density));
Operations.completeLegacy(visitor);
player.print(ground.getAffected() + " flora created.");
}