Remove unused VoxelAabb trait

src/voxel.rs

@@ -72,66 +72,3 @@ impl TryFrom<VoxelFace> for Vec3 {
         }
     }
 }
-
-#[allow(unused)]
-pub(crate) trait VoxelAabb {
-    fn ray_intersection(&self, ray: Ray3d) -> Option<(Vec3, Vec3)>;
-}
-
-impl VoxelAabb for Aabb {
-    fn ray_intersection(&self, ray: Ray3d) -> Option<(Vec3, Vec3)> {
-        let min = self.min();
-        let max = self.max();
-
-        let axis_tmin_tmax = |min: f32, max: f32, origin: f32, direction: f32| {
-            let mut tmin = (min - origin) / direction;
-            let mut tmax = (max - origin) / direction;
-
-            if tmin > tmax {
-                std::mem::swap(&mut tmin, &mut tmax);
-            }
-
-            (tmin, tmax)
-        };
-
-        let (tmin_x, tmax_x) = axis_tmin_tmax(min.x, max.x, ray.origin.x, ray.direction.x);
-        let (tmin_y, tmax_y) = axis_tmin_tmax(min.y, max.y, ray.origin.y, ray.direction.y);
-        let (tmin_z, tmax_z) = axis_tmin_tmax(min.z, max.z, ray.origin.z, ray.direction.z);
-
-        let tmin = tmin_x.max(tmin_y).max(tmin_z);
-        let tmax = tmax_x.min(tmax_y).min(tmax_z);
-
-        if tmin < 0.0 && tmax < 0.0 {
-            return None;
-        }
-
-        let mut intersection = ray.origin + ray.direction * tmin;
-
-        if tmin < 0.0 {
-            intersection = ray.origin;
-        }
-
-        let mut normal = (intersection - Vec3::from(self.center)) * 2.0;
-        normal = vec3_floor_with_tolerance(normal.abs(), 0.001) * normal.signum();
-
-        Some((intersection, normal))
-    }
-}
-
-#[inline]
-fn floor_with_tolerance(value: f32, tolerance: f32) -> f32 {
-    if (value.ceil() - value).abs() >= tolerance {
-        value.floor()
-    } else {
-        (value + tolerance).floor()
-    }
-}
-
-#[inline]
-fn vec3_floor_with_tolerance(value: Vec3, tolerance: f32) -> Vec3 {
-    Vec3::new(
-        floor_with_tolerance(value.x, tolerance),
-        floor_with_tolerance(value.y, tolerance),
-        floor_with_tolerance(value.z, tolerance),
-    )
-}