#[macro_use]
extern crate criterion;

use criterion::*;

use renderer::{
    hitable::Hit, material::Lambertian, ray::Ray, sphere::Sphere, texture::ConstantTexture,
    vec3::Vec3,
};

fn criterion_benchmark(c: &mut Criterion) {
    let sphere = Sphere::new(
        Vec3::new(0., 0., 0.),
        1.,
        Lambertian::new(ConstantTexture::new([1., 0., 0.])),
    );
    let rays = vec![
        // Hit
        Ray::new([0., 0., -2.], [0., 0., 1.], 0.),
        // Miss
        Ray::new([0., 0., -2.], [0., 0., -1.], 0.),
    ];
    let mut group = c.benchmark_group("sphere");
    for r in rays {
        group.bench_with_input(
            BenchmarkId::new("Sphere", format!("{:?}", r)),
            &r,
            |b, r| b.iter(|| sphere.hit(*r, 0., 1.)),
        );
    }
    group.finish()
}

criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);