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use crate::Vec3;

/// The Intersect trait.
pub trait Intersect {
    fn intersect(&self, ray: &Ray) -> RayIntersection;
}

/// Represents an intersection of a ray with a primitive.
#[derive(PartialEq, Debug)]
pub enum RayIntersection {
    Miss,
    Tangent(f32),
    Hit(f32, f32),
}

/// A ray.
pub struct Ray {
    pub origin: Vec3,
    pub direction: Vec3,
}

impl Ray {
    /// Creates a new ray. Clones the borrows components.
    pub fn new(origin: &Vec3, direction: &Vec3) -> Ray {
        Ray {origin: origin.clone(), direction: direction.clone()}
    }
}