//! Support mapping based Cone shape.
use math::Scalar;
/// SupportMap description of a cylinder shape with its principal axis aligned with the `y` axis.
#[derive(PartialEq, Debug, Clone, RustcEncodable, RustcDecodable)]
pub struct Cone<N> {
half_height: N,
radius: N,
}
impl<N> Cone<N>
where N: Scalar {
/// Creates a new cone.
///
/// # Arguments:
/// * `half_height` - the half length of the cone along the `y` axis.
/// * `radius` - the length of the cone along all other axis.
pub fn new(half_height: N, radius: N) -> Cone<N> {
assert!(half_height.is_positive() && radius.is_positive());
Cone {
half_height: half_height,
radius: radius
}
}
/// The cone half length along the `y` axis.
#[inline]
pub fn half_height(&self) -> N {
self.half_height.clone()
}
/// The radius of the cone along all but the `y` axis.
#[inline]
pub fn radius(&self) -> N {
self.radius.clone()
}
}