let outline = r.outline(&grid.scale);
let mut floats = outline.iter().map(|p| point!(p.x as f64, p.y as f64)).collect();
self.smooth_wall(&mut floats, self.wall_smooth_radius as isize);
let outline = r.outline(&grid.scale);
let mut floats = outline.iter().map(|p| point!(p.x as f64, p.y as f64)).collect();
self.smooth_wall(&mut floats, self.wall_smooth_radius as isize);