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intersections: implement a PartialEq that handles floats.

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This commit is contained in:
Bill Thiede 2021-07-21 19:41:14 -07:00
parent a553786807
commit 952ed8bf81
1 changed files with 6 additions and 1 deletions
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7
rtchallenge/src/intersections.rs
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@ -7,11 +7,16 @@ use crate::{
Float, EPSILON, Float, EPSILON,
}; };
#[derive(Debug, Clone, PartialEq)] #[derive(Debug, Clone)]
pub struct Intersection<'i> { pub struct Intersection<'i> {
pub t: Float, pub t: Float,
pub object: &'i Shape, pub object: &'i Shape,
} }
impl<'i> PartialEq for Intersection<'i> {
fn eq(&self, rhs: &Intersection) -> bool {
((self.t - rhs.t).abs() < EPSILON) && (self.object == rhs.object)
}
}
impl<'i> Intersection<'i> { impl<'i> Intersection<'i> {
/// Create new `Intersection` at the given `t` that hits the given `object`. /// Create new `Intersection` at the given `t` that hits the given `object`.