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Add Vec{2, 3, 4}::unit_{x, y, z, w} functions

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Brendan Zabarauskas 2013-09-07 15:08:59 +10:00
parent 038b200338
commit c84ca595b7
1 changed files with 18 additions and 0 deletions
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18
src/cgmath/vector.rs
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@ -65,6 +65,24 @@ vec!(impl Vec2<S> { x, y })
vec!(impl Vec3<S> { x, y, z })
vec!(impl Vec4<S> { x, y, z, w })
impl<S: Clone + Num + Ord> Vec2<S> {
#[inline] pub fn unit_x() -> Vec2<S> { Vec2::new(one(), zero()) }
#[inline] pub fn unit_y() -> Vec2<S> { Vec2::new(zero(), one()) }
}
impl<S: Clone + Num + Ord> Vec3<S> {
#[inline] pub fn unit_x() -> Vec3<S> { Vec3::new(one(), zero(), zero()) }
#[inline] pub fn unit_y() -> Vec3<S> { Vec3::new(zero(), one(), zero()) }
#[inline] pub fn unit_z() -> Vec3<S> { Vec3::new(zero(), zero(), one()) }
}
impl<S: Clone + Num + Ord> Vec4<S> {
#[inline] pub fn unit_x() -> Vec4<S> { Vec4::new(one(), zero(), zero(), zero()) }
#[inline] pub fn unit_y() -> Vec4<S> { Vec4::new(zero(), one(), zero(), zero()) }
#[inline] pub fn unit_z() -> Vec4<S> { Vec4::new(zero(), zero(), one(), zero()) }
#[inline] pub fn unit_w() -> Vec4<S> { Vec4::new(zero(), zero(), zero(), one()) }
}
array!(impl<S> Vec2<S> -> [S, ..2])
array!(impl<S> Vec3<S> -> [S, ..3])
array!(impl<S> Vec4<S> -> [S, ..4])