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This commit is contained in:
Matthew Deville 2026-09-28 21:49:33 +02:00
parent df85367414
commit 9cba02c71e
5 changed files with 136 additions and 640 deletions
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Cargo.lock generated
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@ -162,18 +162,6 @@ dependencies = [
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version = "1.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "22e18b0f0062d30d4230b2e85ff77fdfe4326feb054b9783a3460d8435c8ab91"
dependencies = [
"crossbeam-deque",
"crossbeam-utils",
]
[[package]]
name = "rdst"
version = "0.20.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6e7970b4e577b76a96d5e56b5f6662b66d1a4e1f5bb026ee118fc31b373c2752"
dependencies = [
"arbitrary-chunks",
"block-pseudorand",
"criterion",
"partition",
"tikv-jemallocator",
"voracious_radix_sort",
]
[[package]] [[package]]
name = "read-fonts" name = "read-fonts"
version = "0.39.2" version = "0.39.2"
@ -4578,12 +4107,6 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "19b30a45b0cd0bcca8037f3d0dc3421eaf95327a17cad11964fb8179b4fc4832" checksum = "19b30a45b0cd0bcca8037f3d0dc3421eaf95327a17cad11964fb8179b4fc4832"
[[package]]
name = "robust"
version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4e27ee8bb91ca0adcf0ecb116293afa12d393f9c2b9b9cd54d33e8078fe19839"
[[package]] [[package]]
name = "ron" name = "ron"
version = "0.12.2" version = "0.12.2"
@ -4645,15 +4168,6 @@ version = "1.0.23"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cf54715a573b99ac80df0bc206da022bcd442c974952c7b9720069370852e21f" checksum = "cf54715a573b99ac80df0bc206da022bcd442c974952c7b9720069370852e21f"
[[package]]
name = "safe_arch"
version = "0.7.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "96b02de82ddbe1b636e6170c21be622223aea188ef2e139be0a5b219ec215323"
dependencies = [
"bytemuck",
]
[[package]] [[package]]
name = "same-file" name = "same-file"
version = "1.0.6" version = "1.0.6"
@ -4730,19 +4244,6 @@ dependencies = [
"syn 3.0.6", "syn 3.0.6",
] ]
[[package]]
name = "serde_json"
version = "1.0.151"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c841b55ecdae098c80dcae9cf767f6f8a0c2cdb3416bbef72181df4d0fe73f14"
dependencies = [
"itoa",
"memchr",
"serde",
"serde_core",
"zmij",
]
[[package]] [[package]]
name = "sharded-slab" name = "sharded-slab"
version = "0.1.7" version = "0.1.7"
@ -4758,19 +4259,6 @@ version = "2.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f8fadd59c855ef2080decdef8ff161eb6661b86933c9d82e5ba29dc602a55aba" checksum = "f8fadd59c855ef2080decdef8ff161eb6661b86933c9d82e5ba29dc602a55aba"
[[package]]
name = "simba"
version = "0.9.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c99284beb21666094ba2b75bbceda012e610f5479dfcc2d6e2426f53197ffd95"
dependencies = [
"approx",
"num-complex",
"num-traits",
"paste",
"wide",
]
[[package]] [[package]]
name = "simd-adler32" name = "simd-adler32"
version = "0.3.10" version = "0.3.10"
@ -4868,18 +4356,6 @@ dependencies = [
"serde", "serde",
] ]
[[package]]
name = "spade"
version = "2.15.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9699399fd9349b00b184f5635b074f9ec93afffef30c853f8c875b32c0f8c7fa"
dependencies = [
"hashbrown 0.16.1",
"num-traits",
"robust",
"smallvec",
]
[[package]] [[package]]
name = "spin" name = "spin"
version = "0.10.1" version = "0.10.1"
@ -5068,26 +4544,6 @@ dependencies = [
"cfg-if", "cfg-if",
] ]
[[package]]
name = "tikv-jemalloc-sys"
version = "0.5.4+5.3.0-patched"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9402443cb8fd499b6f327e40565234ff34dbda27460c5b47db0db77443dd85d1"
dependencies = [
"cc",
"libc",
]
[[package]]
name = "tikv-jemallocator"
version = "0.5.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "965fe0c26be5c56c94e38ba547249074803efd52adfb66de62107d95aab3eaca"
dependencies = [
"libc",
"tikv-jemalloc-sys",
]
[[package]] [[package]]
name = "tiny-skia" name = "tiny-skia"
version = "0.11.4" version = "0.11.4"
@ -5124,16 +4580,6 @@ dependencies = [
"zerovec", "zerovec",
] ]
[[package]]
name = "tinytemplate"
version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "be4d6b5f19ff7664e8c98d03e2139cb510db9b0a60b55f8e8709b689d939b6bc"
dependencies = [
"serde",
"serde_json",
]
[[package]] [[package]]
name = "tinyvec" name = "tinyvec"
version = "1.13.3" version = "1.13.3"
@ -5363,15 +4809,6 @@ version = "0.9.5"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a" checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
[[package]]
name = "voracious_radix_sort"
version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "446e7ffcb6c27a71d05af7e51ef2ee5b71c48424b122a832f2439651e1914899"
dependencies = [
"rayon",
]
[[package]] [[package]]
name = "walkdir" name = "walkdir"
version = "2.5.0" version = "2.5.0"
@ -5598,7 +5035,6 @@ dependencies = [
name = "website" name = "website"
version = "0.1.0" version = "0.1.0"
dependencies = [ dependencies = [
"avian2d",
"bevy", "bevy",
] ]
@ -5769,16 +5205,6 @@ dependencies = [
"web-sys", "web-sys",
] ]
[[package]]
name = "wide"
version = "0.7.33"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0ce5da8ecb62bcd8ec8b7ea19f69a51275e91299be594ea5cc6ef7819e16cd03"
dependencies = [
"bytemuck",
"safe_arch",
]
[[package]] [[package]]
name = "winapi" name = "winapi"
version = "0.3.9" version = "0.3.9"
@ -6154,9 +5580,9 @@ checksum = "1ebf944e87a7c253233ad6766e082e3cd714b5d03812acc24c318f549614536e"
[[package]] [[package]]
name = "wl-clipboard-rs" name = "wl-clipboard-rs"
version = "0.9.3" version = "0.9.4"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e9651471a32e87d96ef3a127715382b2d11cc7c8bb9822ded8a7cc94072eb0a3" checksum = "4d7888ccd4896447b2d14d3a9350a85df2aeb6f181e2e7a31349d104ac46cac1"
dependencies = [ dependencies = [
"libc", "libc",
"log", "log",
@ -6355,9 +5781,3 @@ name = "zlib-rs"
version = "0.6.8" version = "0.6.8"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b268e58e7c693d7c271f93ffc4ba3b380412554231c85bf61ca7af91042a4112" checksum = "b268e58e7c693d7c271f93ffc4ba3b380412554231c85bf61ca7af91042a4112"
[[package]]
name = "zmij"
version = "1.0.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "29666d0abbfad1e3dc4dcf6144730dd3a3ab225bbbdac83319345b1b44ccfc1b"

1
Cargo.toml
View file

@ -4,7 +4,6 @@
version = "0.1.0" version = "0.1.0"
[dependencies] [dependencies]
avian2d = "0.7"
bevy = { version = "0.19", default-features = false, features = ["2d"] } bevy = { version = "0.19", default-features = false, features = ["2d"] }
[profile.dev.package."*"] [profile.dev.package."*"]

80
Dockerfile
View file

@ -1,26 +1,70 @@
FROM rust:1 AS builder # syntax=docker/dockerfile:1
WORKDIR /usr/src/website
COPY . . ARG RUST_VERSION=1.98.1
# ---- Base: Rust toolchain + build tools ----
FROM rust:${RUST_VERSION}-slim-bookworm AS chef
WORKDIR /app
RUN apt-get update \ RUN apt-get update \
&& apt-get install -y --no-install-recommends binaryen brotli yq \ && apt-get install -y --no-install-recommends curl ca-certificates \
&& rm -rf /var/lib/apt/lists/* && rm -rf /var/lib/apt/lists/*
RUN rustup target add wasm32-unknown-unknown # Install the toolchain declared in rust-toolchain.toml (incl. wasm32 target) in its own layer
RUN VERSION="$(tomlq -r '.package[] | select(.name == "wasm-bindgen") | .version' Cargo.lock)" \ COPY rust-toolchain.toml .
&& cargo install wasm-bindgen-cli --version "$VERSION" RUN rustup show active-toolchain || rustup toolchain install
RUN ./build-wasm.sh release # Prebuilt binaries via cargo-binstall; wasm-bindgen-cli must match the version in Cargo.lock
RUN cargo build --release -p server RUN curl -L --proto '=https' --tlsv1.2 -sSf \
https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh | bash \
&& cargo binstall -y --locked cargo-chef trunk
FROM debian:trixie-slim # ---- Planner: compute the dependency recipe ----
RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates curl && rm -rf /var/lib/apt/lists/* FROM chef AS planner
COPY --from=builder /usr/src/website/target/release/server /usr/local/bin/server COPY . .
COPY --from=builder /usr/src/website/static /app/static RUN cargo chef prepare --recipe-path recipe.json
WORKDIR /app # ---- Builder: cook deps (cached), then build the site with trunk ----
EXPOSE 3000 FROM chef AS builder
HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \ COPY --from=planner /app/recipe.json recipe.json
CMD curl -f http://localhost:3000/health || exit 1 # Must match the flags trunk passes to cargo (see web/index.html) to reuse the cache
RUN cargo chef cook --release --target wasm32-unknown-unknown --no-default-features \
--recipe-path recipe.json
CMD ["server"] COPY . .
RUN mkdir -p assets
RUN --mount=type=cache,target=/root/.cache/trunk \
trunk build --release --locked
# ---- Runtime: static files served by nginx ----
FROM nginx:1.29-alpine AS runtime
COPY <<'EOF' /etc/nginx/conf.d/default.conf
server {
listen 80;
server_name _;
root /usr/share/nginx/html;
index index.html;
gzip on;
gzip_types application/wasm application/javascript text/css;
# Bevy expects real 404s for missing assets (Trunk.toml: no_spa = true)
location / {
try_files $uri $uri/ =404;
}
location ~* \.(wasm|js|css)$ {
add_header Cache-Control "public, max-age=31536000, immutable";
try_files $uri =404;
}
location = /index.html {
add_header Cache-Control "no-cache";
}
}
EOF
COPY --from=builder /app/dist /usr/share/nginx/html
EXPOSE 80

104
src/main.rs
View file

@ -1,6 +1,36 @@
use bevy::{platform::collections::HashMap, prelude::*}; use bevy::{platform::collections::HashMap, prelude::*};
use std::f32::consts::PI; use std::f32::consts::PI;
#[derive(Reflect, Resource)]
#[reflect(Resource)]
struct ModelConfig {
num_boids: usize,
x_bound: f32,
y_bound: f32,
max_velocity: f32,
protected_range: f32,
visible_range: f32,
alignment_factor: f32,
cohesion_factor: f32,
separation_factor: f32,
}
impl Default for ModelConfig {
fn default() -> Self {
Self {
num_boids: 50,
x_bound: 0.7,
y_bound: 0.7,
max_velocity: 200.0,
protected_range: 50.0,
visible_range: 150.0,
alignment_factor: 0.5,
cohesion_factor: 0.5,
separation_factor: 200.0,
}
}
}
fn main() { fn main() {
App::new() App::new()
.insert_resource(ClearColor(Color::srgb_u8(26, 26, 46))) .insert_resource(ClearColor(Color::srgb_u8(26, 26, 46)))
@ -14,24 +44,29 @@ fn main() {
}), }),
..default() ..default()
})) }))
.init_resource::<ModelConfig>()
.register_type::<ModelConfig>()
.add_systems(Startup, setup) .add_systems(Startup, setup)
.add_systems(FixedUpdate, update_boids) .add_systems(FixedUpdate, update_boids)
.run(); .run();
} }
const BOID_MAX_VELOCITY: f32 = 200.0;
#[derive(Component)] #[derive(Component)]
struct Boid { struct Boid {
velocity: Vec2, velocity: Vec2,
} }
fn setup( fn setup(
model_config: Res<ModelConfig>,
mut commands: Commands, mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>, mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<ColorMaterial>>, mut materials: ResMut<Assets<ColorMaterial>>,
) { ) {
const NUM_BOIDS: usize = 50; let ModelConfig {
num_boids,
max_velocity,
..
} = *model_config;
commands.spawn(Camera2d); commands.spawn(Camera2d);
@ -42,11 +77,11 @@ fn setup(
Vec2::new(-3.0, -3.0), Vec2::new(-3.0, -3.0),
))); )));
let triangle_material = MeshMaterial2d(materials.add(Color::WHITE)); let triangle_material = MeshMaterial2d(materials.add(Color::WHITE));
commands.spawn_batch((0..=NUM_BOIDS).map(move |n| { commands.spawn_batch((0..num_boids).map(move |n| {
let angle = 2.0 * PI / (NUM_BOIDS as f32) * n as f32; let angle = 2.0 * PI / (num_boids as f32) * n as f32;
( (
Boid { Boid {
velocity: Vec2::from_angle(angle) * BOID_MAX_VELOCITY, velocity: Vec2::from_angle(angle) * max_velocity,
}, },
triangle_mesh.clone(), triangle_mesh.clone(),
triangle_material.clone(), triangle_material.clone(),
@ -62,16 +97,14 @@ struct Model {
} }
fn update_boids( fn update_boids(
model_config: Res<ModelConfig>,
window: Single<&Window, With<bevy::window::PrimaryWindow>>, window: Single<&Window, With<bevy::window::PrimaryWindow>>,
mut query: Query<(Entity, &mut Boid, &mut Transform)>,
time: Res<Time<Fixed>>, time: Res<Time<Fixed>>,
mut query: Query<(Entity, &mut Boid, &mut Transform)>,
) { ) {
let dt = time.delta_secs(); let dt = time.delta_secs();
let x_bound = window.width() * 0.7; let x_bound = window.width() * model_config.x_bound;
let y_bound = window.height() * 0.7; let y_bound = window.height() * model_config.y_bound;
const PROTECTED_RANGE: f32 = 30.0;
const VISIBLE_RANGE: f32 = 100.0;
let mut model_updates = HashMap::new(); let mut model_updates = HashMap::new();
for (entity, boid, transform) in query.iter() { for (entity, boid, transform) in query.iter() {
@ -83,15 +116,15 @@ fn update_boids(
if entity == other_entity { if entity == other_entity {
continue; continue;
} }
let distance = transform let delta = transform.translation.xy() - other_transform.translation.xy();
.translation let distance = delta.length();
.xy() if distance < model_config.protected_range {
.distance(other_transform.translation.xy()); if distance > f32::EPSILON {
let direction = delta / distance;
if distance > 1.0 && distance < PROTECTED_RANGE { let strength = 1.0 - distance / model_config.protected_range;
separation += separation += direction * strength;
(transform.translation.xy() - other_transform.translation.xy()) / distance; }
} else if distance < VISIBLE_RANGE { } else if distance < model_config.visible_range {
avg_speed += other_boid.velocity; avg_speed += other_boid.velocity;
avg_pos += other_transform.translation.xy(); avg_pos += other_transform.translation.xy();
nb_neighbors += 1; nb_neighbors += 1;
@ -112,31 +145,30 @@ fn update_boids(
} }
for (entity, mut boid, mut transform) in query.iter_mut() { for (entity, mut boid, mut transform) in query.iter_mut() {
let mut acceleration = Vec2::new(0.0, 0.0); let mut out_of_bounds_acceleration = Vec2::new(0.0, 0.0);
if transform.translation.x < -x_bound / 2.0 { if transform.translation.x < -x_bound / 2.0 {
acceleration.x = 1.0; out_of_bounds_acceleration.x = 1.0;
} else if transform.translation.x > x_bound / 2.0 { } else if transform.translation.x > x_bound / 2.0 {
acceleration.x = -1.0; out_of_bounds_acceleration.x = -1.0;
} }
if transform.translation.y < -y_bound / 2.0 { if transform.translation.y < -y_bound / 2.0 {
acceleration.y = 1.0; out_of_bounds_acceleration.y = 1.0;
} else if transform.translation.y > y_bound / 2.0 { } else if transform.translation.y > y_bound / 2.0 {
acceleration.y = -1.0; out_of_bounds_acceleration.y = -1.0;
} }
let out_of_bounds_acceleration = out_of_bounds_acceleration.normalize_or_zero();
let out_of_bounds_acceleration = acceleration.normalize_or_zero();
let model_update = model_updates.get(&entity).unwrap(); let model_update = model_updates.get(&entity).unwrap();
// Update velocity and apply forces to position let boundary_force = out_of_bounds_acceleration * model_config.max_velocity;
boid.velocity += (out_of_bounds_acceleration let separation_force = model_update.separation * model_config.separation_factor;
+ model_update.separation.normalize_or_zero() * 5. let alignment_force = model_update.alignment * model_config.alignment_factor;
+ model_update.alignment.normalize_or_zero() let cohesion_force = model_update.cohesion * model_config.cohesion_factor;
+ model_update.cohesion.normalize_or_zero())
* BOID_MAX_VELOCITY let acceleration = boundary_force + separation_force + alignment_force + cohesion_force;
* dt; boid.velocity += acceleration * dt;
boid.velocity = boid.velocity.clamp_length_max(BOID_MAX_VELOCITY); boid.velocity = boid.velocity.clamp_length_max(model_config.max_velocity);
transform.translation.x += boid.velocity.x * dt; transform.translation.x += boid.velocity.x * dt;
transform.translation.y += boid.velocity.y * dt; transform.translation.y += boid.velocity.y * dt;

3
web/index.html
View file

@ -6,7 +6,8 @@
<title>Personal website</title> <title>Personal website</title>
<link data-trunk rel="copy-dir" href="../assets" /> <link data-trunk rel="copy-dir" href="../assets" />
<link data-trunk rel="inline" href="style.css" /> <link data-trunk rel="inline" href="style.css" />
<link data-trunk rel="rust" data-cargo-no-default-features data-wasm-opt="s" href="../" /> <link data-trunk rel="rust" data-cargo-no-default-features data-wasm-opt="z" data-wasm-opt-params="--all-features"
href="../" />
</head> </head>
<body> <body>