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//! Support mapping based Plane shape.
use math::Vector;
use na;

/// SupportMap description of a plane.
#[derive(PartialEq, Debug, Clone, RustcEncodable, RustcDecodable)]
pub struct Plane<V> {
    /// The plane normal.
    normal: V
}

impl<V: Vector> Plane<V> {
    /// Builds a new plane from its center and its normal.
    #[inline]
    pub fn new(normal: V) -> Plane<V> {
        unsafe { Plane::new_normalized(na::normalize(&normal)) }
    }
}

impl<V> Plane<V> {
    /// Builds a new plane from its center and its normal.
    #[inline]
    pub unsafe fn new_normalized(normal: V) -> Plane<V> {
        Plane {
            normal: normal
        }
    }

    /// The plane normal.
    #[inline]
    pub fn normal(&self) -> &V {
        &self.normal
    }
}