blob: ebf52bb4fe3f4e2b3f22d5377c817a7a40784f46 (
plain)
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
|
/*
* Copyright (C) Oscar Shrimpton 2020
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use std::fmt::Debug;
use std::ops::{Deref, DerefMut};
#[derive(Debug, Clone)]
/// A linear axis, usually with a value from -1 to 1.
pub struct Axis(i8);
impl Axis {
/// Get a new instance with the value set to zero
pub fn zero() -> Self {
Axis(0)
}
/// Get the normalized value, ie always positive.
pub fn normalized(&self) -> i8 {
if self.0 < 0 {
-self.0
} else {
self.0
}
}
pub fn modify(&mut self, val: i8) {
self.0 += val
}
}
impl Default for Axis {
fn default() -> Self {
Self::zero()
}
}
impl Deref for Axis {
type Target = i8;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl DerefMut for Axis {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.0
}
}
|
