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update

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reya
2026-09-03 16:38:52 +07:00
parent 018395d0c5
commit 212f35d6bb
69 changed files with 2130 additions and 2373 deletions
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crates/signed_ui/src/pixel_avatar.rs
+15 -12
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@@ -9,13 +9,15 @@ const GRID_SIZE: usize = 8;
const FILL_PROBABILITY: f32 = 0.42;
/// Probability that a filled cell uses the accent shade instead of the main color.
const ACCENT_PROBABILITY: f32 = 0.25;
/// Minimum number of filled left-half cells, so a sparse roll still yields a
/// recognizable shape (each left-half cell is mirrored to a right-half one).
/// Minimum number of filled left-half cells.
/// A sparse roll still yields a recognizable shape.
/// Each left-half cell is mirrored to a right-half one.
const MIN_FILLED: usize = 5;
/// A deterministic, offline "pixel art" avatar: an 8×8 grid with horizontal
/// mirror symmetry, seeded from a stable string such as the repository id and
/// owner public key. The same seed always renders the same avatar.
/// A deterministic, offline pixel-art avatar.
/// An 8×8 grid with horizontal mirror symmetry.
/// Seeded from a stable string such as the repository id and owner public key.
/// The same seed always renders the same avatar.
#[derive(IntoElement)]
pub struct PixelAvatar {
seed: u64,
@@ -24,8 +26,8 @@ pub struct PixelAvatar {
}
impl PixelAvatar {
/// Create an avatar seeded from `seed`. The seed should be a stable string
/// unique to the entity the avatar represents.
/// Create an avatar seeded from `seed`.
/// The seed should be a stable string unique to the entity the avatar represents.
pub fn new(seed: impl AsRef<str>) -> Self {
Self {
seed: fnv1a(seed.as_ref().as_bytes()),
@@ -85,8 +87,9 @@ impl RenderOnce for PixelAvatar {
}
}
/// Generate the 8×8 cell pattern for `seed`. Cells are `0` (empty), `1`
/// (main color) or `2` (accent shade); the right half mirrors the left half.
/// Generate the 8×8 cell pattern for `seed`.
/// Cells are `0` for empty, `1` for main color and `2` for accent shade.
/// The right half mirrors the left half.
fn pattern(seed: u64) -> [u8; GRID_SIZE * GRID_SIZE] {
let mut rng = PixelRng::new(seed);
let mut pattern = [0u8; GRID_SIZE * GRID_SIZE];
@@ -102,8 +105,8 @@ fn pattern(seed: u64) -> [u8; GRID_SIZE * GRID_SIZE] {
}
}
// Sparse rolls can come out nearly empty; top the pattern up to the
// minimum fill, scanning from a seeded starting cell.
// Sparse rolls can come out nearly empty.
// Top the pattern up to the minimum fill, scanning from a seeded starting cell.
if filled < MIN_FILLED {
let half = GRID_SIZE * GRID_SIZE / 2;
let start = (rng.next() % half as u64) as usize;
@@ -130,7 +133,7 @@ fn set_cell(pattern: &mut [u8; GRID_SIZE * GRID_SIZE], row: usize, col: usize, v
pattern[row * GRID_SIZE + (GRID_SIZE - 1 - col)] = value;
}
/// FNV-1a 64-bit hash; stable across platforms and runs.
/// FNV-1a 64-bit hash, stable across platforms and runs.
fn fnv1a(bytes: &[u8]) -> u64 {
let mut hash = 0xcbf2_9ce4_8422_2325u64;
for &byte in bytes {