vec4/
set.rs

1use core::ops::Neg;
2use num_traits::{One, Zero};
3
4/// # Example
5/// ```
6/// let mut v = vec4::new_zero();
7/// vec4::set(&mut v, 1, 1, 1, 1);
8/// assert_eq!(v, vec4::new_one());
9/// ```
10#[inline]
11pub fn set<T>(out: &mut [T; 4], x: T, y: T, z: T, w: T) -> &mut [T; 4] {
12    out[0] = x;
13    out[1] = y;
14    out[2] = z;
15    out[3] = w;
16    out
17}
18
19#[inline(always)]
20pub fn set_zero<T>(out: &mut [T; 4]) -> &mut [T; 4]
21where
22    T: Zero,
23{
24    set(out, T::zero(), T::zero(), T::zero(), T::zero())
25}
26
27#[inline(always)]
28pub fn set_one<T>(out: &mut [T; 4]) -> &mut [T; 4]
29where
30    T: One,
31{
32    set(out, T::one(), T::one(), T::one(), T::one())
33}
34
35#[inline(always)]
36pub fn set_up<T>(out: &mut [T; 4]) -> &mut [T; 4]
37where
38    T: One + Zero,
39{
40    set(out, T::zero(), T::zero(), T::one(), T::one())
41}
42
43#[inline(always)]
44pub fn set_down<T>(out: &mut [T; 4]) -> &mut [T; 4]
45where
46    T: Neg<Output = T> + One + Zero,
47{
48    set(out, T::zero(), T::zero(), -T::one(), T::one())
49}
50
51#[inline(always)]
52pub fn set_left<T>(out: &mut [T; 4]) -> &mut [T; 4]
53where
54    T: Neg<Output = T> + One + Zero,
55{
56    set(out, -T::one(), T::zero(), T::zero(), T::one())
57}
58
59#[inline(always)]
60pub fn set_right<T>(out: &mut [T; 4]) -> &mut [T; 4]
61where
62    T: One + Zero,
63{
64    set(out, T::one(), T::zero(), T::zero(), T::one())
65}
66
67#[inline(always)]
68pub fn set_forward<T>(out: &mut [T; 4]) -> &mut [T; 4]
69where
70    T: One + Zero,
71{
72    set(out, T::zero(), T::one(), T::zero(), T::one())
73}
74
75#[inline(always)]
76pub fn set_backward<T>(out: &mut [T; 4]) -> &mut [T; 4]
77where
78    T: Neg<Output = T> + One + Zero,
79{
80    set(out, T::zero(), -T::one(), T::zero(), T::one())
81}
82
83#[inline]
84pub fn set_vec2<'out, T>(out: &'out mut [T; 4], v: &[T; 2]) -> &'out mut [T; 4]
85where
86    T: Clone + One + Zero,
87{
88    set(out, v[0].clone(), v[1].clone(), T::zero(), T::one())
89}
90
91#[inline]
92pub fn set_vec3<'out, T>(out: &'out mut [T; 4], v: &[T; 3]) -> &'out mut [T; 4]
93where
94    T: Clone + One,
95{
96    set(out, v[0].clone(), v[1].clone(), v[2].clone(), T::one())
97}
vec4/set.rs

vec4/
set.rs
