1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98
use std::ops::*; use super::real::Real; macro_rules! impl_vec { ($type: ident, $count: tt, $($field: tt),*) => { #[derive(Copy, Clone, Debug, PartialEq)] #[derive(Serialize, Deserialize)] pub struct $type<R: Real = f32> { $(pub $field: R),* } impl<R: Real> $type<R> { pub fn new($($field: R),*) -> Self { Self { $($field),* } } } impl<R: Real> Add<Self> for $type<R> { type Output = Self; fn add(self, other: Self) -> Self::Output { $type::new($(self.$field + other.$field),*) } } impl<R: Real> AddAssign<Self> for $type<R> { fn add_assign(&mut self, other: Self) { $(self.$field += other.$field);* } } impl<R: Real> Sub<Self> for $type<R> { type Output = Self; fn sub(self, other: Self) -> Self::Output { $type::new($(self.$field - other.$field),*) } } impl<R: Real> SubAssign<Self> for $type<R> { fn sub_assign(&mut self, other: Self) { $(self.$field -= other.$field);* } } impl<R: Real> Mul<R> for $type<R> { type Output = Self; fn mul(self, other: R) -> Self::Output { $type::new($(self.$field * other),*) } } impl Mul<$type<f32>> for f32 { type Output = $type<f32>; fn mul(self, other: $type<f32>) -> Self::Output { $type::new($(self * other.$field),*) } } impl Mul<$type<f64>> for f64 { type Output = $type<f64>; fn mul(self, other: $type<f64>) -> Self::Output { $type::new($(self * other.$field),*) } } impl<R: Real> Into<[R; $count]> for $type<R> { fn into(self) -> [R; $count] { [$(self.$field),*] } } } } impl_vec!(Vec2, 2, x, y); impl_vec!(Vec3, 3, x, y, z); impl_vec!(Vec4, 4, x, y, z, w); impl<R: Real> Vec2<R> { pub fn zero() -> Self { Self::new(R::zero(), R::zero()) } } impl<R: Real> Vec3<R> { pub fn zero() -> Self { Self::new(R::zero(), R::zero(), R::zero()) } } impl<R: Real> From<Vec2<R>> for Vec3<R> { fn from(vec2: Vec2<R>) -> Self { Self::new(vec2.x, vec2.y, R::zero()) } }