#[macro_use]
extern crate approx;
extern crate num_traits;

pub mod structs;
pub mod color;
pub mod canvas;
pub mod matrix;
pub mod transformations;

pub mod ray;
pub mod sphere;

#[macro_export]
macro_rules! num_traits_cast {
    ($tt:expr) => {
        num_traits::cast($tt).unwrap()
    };
}

#[cfg(test)]
mod tests {
    #[test]
    fn it_works() {
        assert_eq!(2 + 2, 4);
    }
}