Move Opt from library to CLI.

rtiow/src/bin/tracer.rs

@@ -1,7 +1,9 @@
 extern crate rand;
 extern crate rtiow;
+#[macro_use]
 extern crate structopt;
 
+use std::path::PathBuf;
 use std::time::Instant;
 
 use rand::Rng;
@@ -14,7 +16,6 @@ use rtiow::material::Dielectric;
 use rtiow::material::Lambertian;
 use rtiow::material::Metal;
 use rtiow::renderer::render;
-use rtiow::renderer::Opt;
 use rtiow::renderer::Scene;
 use rtiow::sphere::Sphere;
 use rtiow::vec3::Vec3;
@@ -159,6 +160,24 @@ fn build_scene(opt: &Opt) -> Scene {
     }
 }
 
+#[derive(Debug, StructOpt)]
+#[structopt(name = "tracert", about = "An experimental ray tracer.")]
+pub struct Opt {
+    /// Image width
+    #[structopt(short = "w", long = "width", default_value = "1280")]
+    pub width: usize,
+    /// Image height
+    #[structopt(short = "h", long = "height", default_value = "720")]
+    pub height: usize,
+    /// Sub-samples per pixel
+    #[structopt(short = "s", long = "subsample", default_value = "10")]
+    pub subsamples: usize,
+
+    /// Output file
+    #[structopt(parse(from_os_str))]
+    pub output: PathBuf,
+}
+
 fn main() -> Result<(), std::io::Error> {
     let start = Instant::now();
     let opt = Opt::from_args();

rtiow/src/lib.rs

@@ -10,5 +10,3 @@ pub mod vec3;
 extern crate image;
 extern crate rand;
 extern crate rayon;
-#[macro_use]
-extern crate structopt;

rtiow/src/renderer.rs

@@ -1,5 +1,4 @@
 use std;
-use std::path::PathBuf;
 
 use image;
 use image::RgbImage;
@@ -13,24 +12,6 @@ use hitable_list::HitableList;
 use ray::Ray;
 use vec3::Vec3;
 
-#[derive(Debug, StructOpt)]
-#[structopt(name = "tracert", about = "An experimental ray tracer.")]
-pub struct Opt {
-    /// Image width
-    #[structopt(short = "w", long = "width", default_value = "1280")]
-    pub width: usize,
-    /// Image height
-    #[structopt(short = "h", long = "height", default_value = "720")]
-    pub height: usize,
-    /// Sub-samples per pixel
-    #[structopt(short = "s", long = "subsample", default_value = "10")]
-    pub subsamples: usize,
-
-    /// Output file
-    #[structopt(parse(from_os_str))]
-    pub output: PathBuf,
-}
-
 pub struct Scene {
     pub world: HitableList,
     pub camera: Camera,