65 lines
1.5 KiB
Rust
65 lines
1.5 KiB
Rust
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use super::super::core::color::LinearColor;
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use super::super::Point2D;
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use super::Material;
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/// A material with the same characteristics on all points.
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#[derive(Debug, PartialEq)]
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pub struct UniformMaterial {
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diffuse: LinearColor,
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specular: LinearColor,
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}
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impl UniformMaterial {
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pub fn new(diffuse: LinearColor, specular: LinearColor) -> Self {
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UniformMaterial { diffuse, specular }
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}
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}
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impl Material for UniformMaterial {
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fn diffuse(&self, _: Point2D) -> LinearColor {
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self.diffuse.clone()
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}
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fn specular(&self, _: Point2D) -> LinearColor {
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self.specular.clone()
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn new_works() {
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let diffuse = LinearColor::new(0., 0.5, 0.);
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let specular = LinearColor::new(1., 1., 1.);
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let mat = UniformMaterial::new(diffuse.clone(), specular.clone());
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assert_eq!(mat, UniformMaterial { diffuse, specular })
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}
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fn simple_material() -> impl Material {
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UniformMaterial::new(
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LinearColor::new(0.5, 0.5, 0.5),
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LinearColor::new(1., 1., 1.),
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)
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}
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#[test]
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fn diffuse_works() {
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let mat = simple_material();
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assert_eq!(
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mat.diffuse(Point2D::origin()),
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LinearColor::new(0.5, 0.5, 0.5)
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)
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}
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#[test]
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fn specular_works() {
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let mat = simple_material();
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assert_eq!(
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mat.specular(Point2D::origin()),
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LinearColor::new(1., 1., 1.)
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)
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}
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}
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