world: add builder pattern.

2021-07-21 20:45:33 -07:00 · 2021-07-21 20:45:33 -07:00 · 44b46187a0
commit 44b46187a0
parent de898f0b0a
1 changed files with 4 additions and 1 deletions
--- a/rtchallenge/src/world.rs
+++ b/rtchallenge/src/world.rs
@ -1,3 +1,5 @@
+use derive_builder::Builder;
+
 use crate::{
    intersections::{prepare_computations, Intersections, PrecomputedData},
    lights::PointLight,
@ -20,7 +22,8 @@ use crate::{
 /// assert_eq!(w.lights.len(), 0);
 /// ```

-#[derive(Clone, Debug, Default)]
+#[derive(Builder, Clone, Debug, Default)]
+#[builder(default)]
 pub struct World {
    pub lights: Vec<PointLight>,
    pub objects: Vec<Shape>,