valence_protocol/
byte_angle.rs

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1use std::f32::consts::TAU;
2use std::fmt;
3use std::io::Write;
4
5use crate::{Decode, Encode};
6
7/// Represents an angle in steps of 1/256 of a full turn.
8#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
9pub struct ByteAngle(pub u8);
10
11impl ByteAngle {
12    pub fn from_degrees(f: f32) -> ByteAngle {
13        ByteAngle((f.rem_euclid(360.0) / 360.0 * 256.0).round() as u8)
14    }
15
16    pub fn from_radians(f: f32) -> ByteAngle {
17        ByteAngle((f.rem_euclid(TAU) / TAU * 256.0).round() as u8)
18    }
19
20    pub fn to_degrees(self) -> f32 {
21        f32::from(self.0) / 256.0 * 360.0
22    }
23
24    pub fn to_radians(self) -> f32 {
25        f32::from(self.0) / 256.0 * TAU
26    }
27}
28
29impl fmt::Debug for ByteAngle {
30    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
31        fmt::Display::fmt(self, f)
32    }
33}
34
35impl fmt::Display for ByteAngle {
36    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
37        write!(f, "{}°", self.to_degrees())
38    }
39}
40
41impl Encode for ByteAngle {
42    fn encode(&self, w: impl Write) -> anyhow::Result<()> {
43        self.0.encode(w)
44    }
45}
46
47impl Decode<'_> for ByteAngle {
48    fn decode(r: &mut &[u8]) -> anyhow::Result<Self> {
49        u8::decode(r).map(ByteAngle)
50    }
51}
valence_protocol/byte_angle.rs

valence_protocol/
byte_angle.rs
