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use nalgebra::{Vector2, Vector3};
#[cfg(any(test, feature = "arbitrary"))]
use quickcheck::{Arbitrary, Gen};
use partition::{Partition, Subdivide, Interval, Mid};
macro_rules! impl_box {
($b: ident, $($param: ident),*) => (
impl<T> $b<T> {
pub fn new($($param: Interval<T>),*) -> $b<T> {
$b { $($param: $param),* }
}
}
)
}
macro_rules! impl_partition_for_box {
($b: ident, $v: ident, $($param: ident),*) => (
impl<T: Mid + PartialOrd + Copy> Subdivide for $b<T> {
fn subdivide(&self) -> Vec<$b<T>> {
let mut subs = vec![];
$(let $param = self.$param.subdivide();)*
subs.extend(
iproduct!($($param.iter()),*)
.map(|($(&$param),*)| $b::new($($param),*))
);
subs
}
}
impl<T: Mid + PartialOrd + Copy> Partition<$v<T>> for $b<T> {
fn contains(&self, elem: &$v<T>) -> bool {
true $(&& self.$param.contains(&elem.$param))*
}
}
)
}
macro_rules! impl_arb_for_box {
($b: ident, $($param: ident),*) => (
#[cfg(any(test, feature = "arbitrary"))]
impl<T: PartialOrd + Arbitrary> Arbitrary for $b<T> {
fn arbitrary<G: Gen>(g: &mut G) -> $b<T> {
$b { $($param: Arbitrary::arbitrary(g)),* }
}
}
)
}
#[derive(Copy, Clone, Debug)]
pub struct Box2<T> {
x: Interval<T>,
y: Interval<T>,
}
impl_box!(Box2, x, y);
impl_partition_for_box!(Box2, Vector2, x, y);
impl_arb_for_box!(Box2, x, y);
#[derive(Copy, Clone, Debug)]
pub struct Box3<T> {
x: Interval<T>,
y: Interval<T>,
z: Interval<T>,
}
impl_box!(Box3, x, y, z);
impl_partition_for_box!(Box3, Vector3, x, y, z);
impl_arb_for_box!(Box3, x, y, z);
#[cfg(test)]
mod test {
pub use nalgebra::{Vector2, Vector3};
pub use super::*;
partition_quickcheck!(box2_f32_partition, Box2<f32>, Vector2<f32>);
partition_quickcheck!(box2_f64_partition, Box2<f64>, Vector2<f64>);
partition_quickcheck!(box3_f32_partition, Box3<f32>, Vector3<f32>);
partition_quickcheck!(box3_f64_partition, Box3<f64>, Vector3<f64>);
}