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//! ## Introduction
//! Gemini is a monospaced ASCII rendering engine, capable of 2D and 3D rendering. This is a loose port of [GeminiEngine](https://github.com/redpenguinyt/GeminiEngine) which was made in python ended up being quite slow, especially compared to this new version.
//!
//! **IMPORTANT**: You HAVE to use a monospace font in the terminal for the engine to render the view properly.
//!
//! Go to [`elements`] for a quick start guide.

pub mod elements;
pub mod elements3d;
pub mod gameloop;

#[cfg(test)]
mod vec2d_tests {
    use super::*;
    use elements::Vec2D;

    #[test]
    fn add_vec2d() {
        assert_eq!(Vec2D::new(15, -3), Vec2D::new(13, 4) + Vec2D::new(2, -7));
    }

    #[test]
    fn subtract_vec2d() {
        assert_eq!(Vec2D::new(2, -10), Vec2D::new(17, 4) - Vec2D::new(15, 14));
    }

    #[test]
    fn rem_vec2d_over() {
        assert_eq!(Vec2D::new(4, 1), Vec2D::new(9, 11) % Vec2D::new(5, 10))
    }

    #[test]
    fn rem_vec2d_under() {
        assert_eq!(Vec2D::new(4, 1), Vec2D::new(-1, -109) % Vec2D::new(5, 10))
    }

    #[test]
    fn eq_vec2d_both() {
        assert_eq!(Vec2D::new(5, 4), Vec2D::new(5, 4))
    }

    #[test]
    fn eq_vec2d_only_one() {
        assert_ne!(Vec2D::new(5, 2), Vec2D::new(5, 4))
    }

    #[test]
    fn eq_vec2d_neither() {
        assert_ne!(Vec2D::new(17, 2), Vec2D::new(5, 4))
    }
}