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Use euphoxide instead of euph module

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This commit is contained in:
Joscha 2022-08-18 18:13:49 +02:00
parent d07b1051a9
commit 36b717ff8c
17 changed files with 83 additions and 1556 deletions
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35
src/euph/util.rs
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@ -1,41 +1,8 @@
use crossterm::style::{Color, ContentStyle, Stylize};
use palette::{FromColor, Hsl, RgbHue, Srgb};
fn normalize(text: &str) -> String {
// TODO Remove emoji names?
text.chars()
.filter(|&c| c.is_ascii_alphanumeric() || c == '_' || c == '-')
.map(|c| c.to_ascii_lowercase())
.collect()
}
/// A re-implementation of [euphoria's nick hue hashing algorithm][0].
///
/// [0]: https://github.com/euphoria-io/heim/blob/master/client/lib/hueHash.js
fn hue_hash(text: &str, offset: i64) -> u8 {
let mut val = 0_i32;
for bibyte in text.encode_utf16() {
let char_val = (bibyte as i32).wrapping_mul(439) % 256;
val = val.wrapping_mul(33).wrapping_add(char_val);
}
let val: i64 = val as i64 + 2_i64.pow(31);
((val + offset) % 255) as u8
}
const GREENIE_OFFSET: i64 = 148 - 192; // 148 - hue_hash("greenie", 0)
pub fn hue(text: &str) -> u8 {
let normalized = normalize(text);
if normalized.is_empty() {
hue_hash(text, GREENIE_OFFSET)
} else {
hue_hash(&normalized, GREENIE_OFFSET)
}
}
pub fn nick_color(nick: &str) -> (u8, u8, u8) {
let hue = RgbHue::from(hue(nick) as f32);
let hue = RgbHue::from(euphoxide::nick_hue(nick) as f32);
let color = Hsl::new(hue, 1.0, 0.72);
Srgb::from_color(color)
.into_format::<u8>()