use crate::vec3::{Point3, Vec3};

pub struct Ray {
    pub origin: Point3,
    pub direction: Vec3,
    pub time: f64,
}

impl Ray {
    pub fn new() -> Ray {
        Ray {
            origin: Point3 {
                x: 0.0,
                y: 0.0,
                z: 0.0,
            },
            direction: Vec3 {
                x: 0.0,
                y: 0.0,
                z: 0.0,
            },
            time: 0.0,
        }
    }

    pub fn at(&self, t: f64) -> Point3 {
        &self.origin + t * &self.direction
    }
}