From e694cc8863360d1a87b3e0e0d41d235094bd21f8 Mon Sep 17 00:00:00 2001
From: Michael Zhang <mail@mzhang.io>
Date: Tue, 31 Jan 2023 14:41:23 -0600
Subject: [PATCH] Wrap comments

---
 assignment-1/src/input_file.rs |  2 +-
 assignment-1/src/main.rs       | 18 +++++++++++-------
 assignment-1/src/ray.rs        |  7 ++++---
 flake.nix                      |  9 ++++++++-
 rustfmt.toml                   |  1 +
 5 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/assignment-1/src/input_file.rs b/assignment-1/src/input_file.rs
index 7eb1312..d9ff82c 100644
--- a/assignment-1/src/input_file.rs
+++ b/assignment-1/src/input_file.rs
@@ -59,7 +59,7 @@ pub fn parse_input_file(path: impl AsRef<Path>) -> Result<Scene> {
           let idx = scene.material_colors.len();
           material_color = Some(idx);
           scene.material_colors.push(read_vec3()?);
-        },
+        }
 
         "sphere" => scene.objects.push(Object::Sphere(Sphere {
           center: read_vec3()?,
diff --git a/assignment-1/src/main.rs b/assignment-1/src/main.rs
index 32fc938..be49e50 100644
--- a/assignment-1/src/main.rs
+++ b/assignment-1/src/main.rs
@@ -35,8 +35,8 @@ struct Opt {
   ///
   ///     imsize [width] [height]
   ///
-  /// Where `imsize' is a keyword, and `width' and `height' are integer values denoting the desired
-  /// size of the image to be generated.
+  /// Where `imsize' is a keyword, and `width' and `height' are integer values
+  /// denoting the desired size of the image to be generated.
   #[clap()]
   input_path: PathBuf,
 
@@ -59,8 +59,8 @@ fn main() -> Result<()> {
 
   // Compute dimensions of viewing window based on field of view
   let viewing_width = {
-    // Divide the angle in 2 since we are trying to use trig rules so we must get it from a right
-    // triangle
+    // Divide the angle in 2 since we are trying to use trig rules so we must
+    // get it from a right triangle
     let half_hfov = scene.hfov / 2.0;
 
     // tan(hfov / 2) = w / 2d
@@ -101,7 +101,9 @@ fn main() -> Result<()> {
   // Loop through every single pixel of the output file
   let mut pixels =
     vec![Pixel::default(); scene.image_width * scene.image_width];
-  for (px, py) in (0..scene.image_width).cartesian_product(0..scene.image_height) {
+  for (px, py) in
+    (0..scene.image_width).cartesian_product(0..scene.image_height)
+  {
     let pixel_in_space = pixel_translation(px, py);
     let ray = Ray::from_endpoints(scene.eye_pos, pixel_in_space);
 
@@ -111,7 +113,8 @@ fn main() -> Result<()> {
       .filter_map(|object| {
         let sphere = match object {
           Object::Sphere(v) => v,
-          _ => return None, // TODO: Handle other object types for intersection as well
+          _ => return None, /* TODO: Handle other object types for
+                             * intersection as well */
         };
 
         ray.intersects_at(sphere).map(|t| (t, sphere))
@@ -120,7 +123,8 @@ fn main() -> Result<()> {
 
     let pixel_color = match earliest_intersection {
       Some((_, sphere)) => scene.material_colors[sphere.material],
-      // There was no intersection, so this should default to the background color
+      // There was no intersection, so this should default to the background
+      // color
       None => scene.bkg_color,
     };
 
diff --git a/assignment-1/src/ray.rs b/assignment-1/src/ray.rs
index 64b1d65..f2cf85d 100644
--- a/assignment-1/src/ray.rs
+++ b/assignment-1/src/ray.rs
@@ -3,8 +3,8 @@ use crate::vec3::Vec3;
 
 /// A normalized parametric Ray of the form (origin + direction * time)
 ///
-/// That means at any time t: f64, the point represented by origin + direction * time occurs on the
-/// ray.
+/// That means at any time t: f64, the point represented by origin + direction *
+/// time occurs on the ray.
 #[derive(Debug)]
 pub struct Ray {
   origin: Vec3,
@@ -26,7 +26,8 @@ impl Ray {
     self.origin + self.direction * time
   }
 
-  /// Given a sphere, returns the first time at which this ray intersects the sphere.
+  /// Given a sphere, returns the first time at which this ray intersects the
+  /// sphere.
   ///
   /// If there is no intersection point, returns None.
   pub fn intersects_at(&self, sphere: &Sphere) -> Option<f64> {
diff --git a/flake.nix b/flake.nix
index 78974e9..9bbd77b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,7 +14,14 @@
         devShell = pkgs.mkShell {
           packages =
             (with pkgs; [ cargo-watch cargo-deny cargo-edit zip unzip ])
-            ++ (with toolchain; [ cargo rustc rustfmt clippy ]);
+            ++ (with toolchain; [
+              cargo
+              rustc
+              clippy
+
+              # Get the nightly version of rustfmt so we can wrap comments
+              pkgs.fenix.default.rustfmt
+            ]);
           CARGO_UNSTABLE_SPARSE_REGISTRY = "true";
         };
       });
diff --git a/rustfmt.toml b/rustfmt.toml
index 4c1eefa..a3be6a8 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,2 +1,3 @@
 max_width = 80
 tab_spaces = 2
+wrap_comments = true