Clean up Solid validation code

crates/fj-kernel/src/validate/solid.rs

@@ -24,20 +24,42 @@ pub enum SolidValidationError {
     /// [`Solid`] contains vertices that are coincident, but not identical
     #[error(
         "Solid contains Vertices that are coincident but not identical\n
-        Vertex 1: {:#?} {:#?}
-        Vertex 2: {:#?} {:#?}
-        ", .0[0].0, .0[0].1,.0[1].0,.0[1].1
+        Vertex 1: {vertex_a:#?} ({position_a:?})
+        Vertex 2: {vertex_b:#?} ({position_b:?})"
     )]
-    DistinctVerticesCoincide([(Handle<Vertex>, Point<3>); 2]),
+    DistinctVerticesCoincide {
+        /// The first vertex
+        vertex_a: Handle<Vertex>,
+
+        /// The second vertex
+        vertex_b: Handle<Vertex>,
+
+        /// Position of first vertex
+        position_a: Point<3>,
+
+        /// Position of second vertex
+        position_b: Point<3>,
+    },
 
     /// [`Solid`] contains vertices that are identical, but do not coincide
     #[error(
         "Solid contains Vertices that are identical but do not coincide\n
-        Vertex 1: {:#?} {:#?}
-        Vertex 2: {:#?} {:#?}
-        ", .0[0].0, .0[0].1,.0[1].0,.0[1].1
+        Vertex 1: {vertex_a:#?} ({position_a:?})
+        Vertex 2: {vertex_b:#?} ({position_b:?})"
     )]
-    IdenticalVerticesNotCoincident([(Handle<Vertex>, Point<3>); 2]),
+    IdenticalVerticesNotCoincident {
+        /// The first vertex
+        vertex_a: Handle<Vertex>,
+
+        /// The second vertex
+        vertex_b: Handle<Vertex>,
+
+        /// Position of first vertex
+        position_a: Point<3>,
+
+        /// Position of second vertex
+        position_b: Point<3>,
+    },
 }
 
 impl SolidValidationError {
@@ -65,33 +87,40 @@ impl SolidValidationError {
         // This is O(N^2) which isn't great, but we can't use a HashMap since we
         // need to deal with float inaccuracies. Maybe we could use some smarter
         // data-structure like an octree.
-        for a in &vertices {
-            for b in &vertices {
-                match a.1.id() == b.1.id() {
-                    true => {
-                        if a.0.distance_to(&b.0) > config.identical_max_distance
-                        {
-                            errors.push(
-                                Self::IdenticalVerticesNotCoincident([
-                                    (a.1.clone(), a.0),
-                                    (b.1.clone(), b.0),
-                                ])
-                                .into(),
-                            )
+        for (position_a, vertex_a) in &vertices {
+            for (position_b, vertex_b) in &vertices {
+                let vertices_are_identical = vertex_a.id() == vertex_b.id();
+                let vertices_are_not_identical = !vertices_are_identical;
+
+                let too_far_to_be_identical = position_a
+                    .distance_to(position_b)
+                    > config.identical_max_distance;
+                let too_close_to_be_distinct = position_a
+                    .distance_to(position_b)
+                    < config.distinct_min_distance;
+
+                if vertices_are_identical && too_far_to_be_identical {
+                    errors.push(
+                        Self::IdenticalVerticesNotCoincident {
+                            vertex_a: vertex_a.clone(),
+                            vertex_b: vertex_b.clone(),
+                            position_a: *position_a,
+                            position_b: *position_b,
                         }
-                    }
-                    false => {
-                        if a.0.distance_to(&b.0) < config.distinct_min_distance
-                        {
-                            errors.push(
-                                Self::DistinctVerticesCoincide([
-                                    (a.1.clone(), a.0),
-                                    (b.1.clone(), b.0),
-                                ])
-                                .into(),
-                            )
+                        .into(),
+                    )
+                }
+
+                if vertices_are_not_identical && too_close_to_be_distinct {
+                    errors.push(
+                        Self::DistinctVerticesCoincide {
+                            vertex_a: vertex_a.clone(),
+                            vertex_b: vertex_b.clone(),
+                            position_a: *position_a,
+                            position_b: *position_b,
                         }
-                    }
+                        .into(),
+                    )
                 }
             }
         }