This is only a Boids project, now. Drop others.

The examples and learning plugins have outlived their usefulness, and
this repo already has substantial history in being a boids plugin. I'm
renaming the crate (and repo, but that isn't visible to git) to treat
this simply as a boids repo.
This commit is contained in:
2024-07-11 08:33:33 -05:00
parent d99326d849
commit 9f37addb5f
5 changed files with 85 additions and 481 deletions

148
Cargo.lock generated
View File

@@ -171,6 +171,14 @@ dependencies = [
"libc",
]
[[package]]
name = "another-boids-in-rust"
version = "0.1.0"
dependencies = [
"bevy",
"bevy_spatial",
]
[[package]]
name = "approx"
version = "0.5.1"
@@ -303,14 +311,6 @@ dependencies = [
"bevy_internal",
]
[[package]]
name = "bevy-testing"
version = "0.1.0"
dependencies = [
"bevy",
"bevy_spatial",
]
[[package]]
name = "bevy_a11y"
version = "0.14.0"
@@ -412,7 +412,7 @@ dependencies = [
"bevy_macro_utils",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -496,7 +496,7 @@ checksum = "c8a8173bad3ed53fa158806b1beda147263337d6ef71a093780dd141b74386b1"
dependencies = [
"bevy_macro_utils",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -545,7 +545,7 @@ dependencies = [
"bevy_macro_utils",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -605,7 +605,7 @@ dependencies = [
"bevy_macro_utils",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -732,8 +732,8 @@ checksum = "c3ad860d35d74b35d4d6ae7f656d163b6f475aa2e64fc293ee86ac901977ddb7"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"toml_edit 0.22.14",
"syn 2.0.70",
"toml_edit 0.22.15",
]
[[package]]
@@ -820,7 +820,7 @@ dependencies = [
"bevy_macro_utils",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
"uuid",
]
@@ -881,7 +881,7 @@ dependencies = [
"bevy_macro_utils",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -965,7 +965,7 @@ dependencies = [
"bevy_macro_utils",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -1085,7 +1085,7 @@ checksum = "ad9db261ab33a046e1f54b35f885a44f21fcc80aa2bc9050319466b88fe58fe3"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -1149,7 +1149,7 @@ dependencies = [
"regex",
"rustc-hash",
"shlex",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -1246,7 +1246,7 @@ checksum = "1ee891b04274a59bd38b412188e24b849617b2e45a0fd8d057deb63e7403761b"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -1277,9 +1277,9 @@ dependencies = [
[[package]]
name = "cc"
version = "1.0.106"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "066fce287b1d4eafef758e89e09d724a24808a9196fe9756b8ca90e86d0719a2"
checksum = "eaff6f8ce506b9773fa786672d63fc7a191ffea1be33f72bbd4aeacefca9ffc8"
dependencies = [
"jobserver",
"libc",
@@ -1659,7 +1659,7 @@ checksum = "fd31dbbd9743684d339f907a87fe212cb7b51d75b9e8e74181fe363199ee9b47"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -1785,7 +1785,7 @@ checksum = "1a5c6c585bc94aaf2c7b51dd4c2ba22680844aba4c687be581871a6f518c5742"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -1857,9 +1857,9 @@ dependencies = [
[[package]]
name = "gilrs-core"
version = "0.5.12"
version = "0.5.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b922f294d9f062af517ea0bd0a036ddcf11c2842211c2f9c71a3ceee859e10b6"
checksum = "bbb5e8d912059b33b463831c16b838d15c4772d584ce332e4a80f6dffdae2bc1"
dependencies = [
"core-foundation",
"inotify",
@@ -1873,7 +1873,7 @@ dependencies = [
"vec_map",
"wasm-bindgen",
"web-sys",
"windows 0.57.0",
"windows 0.58.0",
]
[[package]]
@@ -1937,7 +1937,7 @@ dependencies = [
"inflections",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -2561,7 +2561,7 @@ checksum = "ed3955f1a9c7c0c15e092f9c887db08b1fc683305fdf6eb6684f22555355e202"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -2591,7 +2591,7 @@ dependencies = [
"proc-macro-crate",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -2947,7 +2947,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -3272,7 +3272,7 @@ checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -3374,9 +3374,9 @@ dependencies = [
[[package]]
name = "syn"
version = "2.0.69"
version = "2.0.70"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "201fcda3845c23e8212cd466bfebf0bd20694490fc0356ae8e428e0824a915a6"
checksum = "2f0209b68b3613b093e0ec905354eccaedcfe83b8cb37cbdeae64026c3064c16"
dependencies = [
"proc-macro2",
"quote",
@@ -3385,9 +3385,9 @@ dependencies = [
[[package]]
name = "sysinfo"
version = "0.30.12"
version = "0.30.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "732ffa00f53e6b2af46208fba5718d9662a421049204e156328b66791ffa15ae"
checksum = "0a5b4ddaee55fb2bea2bf0e5000747e5f5c0de765e5a5ff87f4cd106439f4bb3"
dependencies = [
"cfg-if",
"core-foundation-sys",
@@ -3436,7 +3436,7 @@ checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -3451,9 +3451,9 @@ dependencies = [
[[package]]
name = "tinyvec"
version = "1.7.0"
version = "1.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ce6b6a2fb3a985e99cebfaefa9faa3024743da73304ca1c683a36429613d3d22"
checksum = "445e881f4f6d382d5f27c034e25eb92edd7c784ceab92a0937db7f2e9471b938"
dependencies = [
"tinyvec_macros",
]
@@ -3483,9 +3483,9 @@ dependencies = [
[[package]]
name = "toml_edit"
version = "0.22.14"
version = "0.22.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f21c7aaf97f1bd9ca9d4f9e73b0a6c74bd5afef56f2bc931943a6e1c37e04e38"
checksum = "d59a3a72298453f564e2b111fa896f8d07fabb36f51f06d7e875fc5e0b5a3ef1"
dependencies = [
"indexmap",
"toml_datetime",
@@ -3511,7 +3511,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -3618,9 +3618,9 @@ checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
[[package]]
name = "uuid"
version = "1.9.1"
version = "1.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5de17fd2f7da591098415cff336e12965a28061ddace43b59cb3c430179c9439"
checksum = "81dfa00651efa65069b0b6b651f4aaa31ba9e3c3ce0137aaad053604ee7e0314"
dependencies = [
"getrandom",
"serde",
@@ -3681,7 +3681,7 @@ dependencies = [
"once_cell",
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
"wasm-bindgen-shared",
]
@@ -3715,7 +3715,7 @@ checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
"wasm-bindgen-backend",
"wasm-bindgen-shared",
]
@@ -3916,11 +3916,11 @@ dependencies = [
[[package]]
name = "windows"
version = "0.57.0"
version = "0.58.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "12342cb4d8e3b046f3d80effd474a7a02447231330ef77d71daa6fbc40681143"
checksum = "dd04d41d93c4992d421894c18c8b43496aa748dd4c081bac0dc93eb0489272b6"
dependencies = [
"windows-core 0.57.0",
"windows-core 0.58.0",
"windows-targets 0.52.6",
]
@@ -3939,19 +3939,20 @@ version = "0.54.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "12661b9c89351d684a50a8a643ce5f608e20243b9fb84687800163429f161d65"
dependencies = [
"windows-result",
"windows-result 0.1.2",
"windows-targets 0.52.6",
]
[[package]]
name = "windows-core"
version = "0.57.0"
version = "0.58.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d2ed2439a290666cd67ecce2b0ffaad89c2a56b976b736e6ece670297897832d"
checksum = "6ba6d44ec8c2591c134257ce647b7ea6b20335bf6379a27dac5f1641fcf59f99"
dependencies = [
"windows-implement 0.57.0",
"windows-interface 0.57.0",
"windows-result",
"windows-implement 0.58.0",
"windows-interface 0.58.0",
"windows-result 0.2.0",
"windows-strings",
"windows-targets 0.52.6",
]
@@ -3963,18 +3964,18 @@ checksum = "942ac266be9249c84ca862f0a164a39533dc2f6f33dc98ec89c8da99b82ea0bd"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
name = "windows-implement"
version = "0.57.0"
version = "0.58.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9107ddc059d5b6fbfbffdfa7a7fe3e22a226def0b2608f72e9d552763d3e1ad7"
checksum = "2bbd5b46c938e506ecbce286b6628a02171d56153ba733b6c741fc627ec9579b"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -3985,18 +3986,18 @@ checksum = "da33557140a288fae4e1d5f8873aaf9eb6613a9cf82c3e070223ff177f598b60"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
name = "windows-interface"
version = "0.57.0"
version = "0.58.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "29bee4b38ea3cde66011baa44dba677c432a78593e202392d1e9070cf2a7fca7"
checksum = "053c4c462dc91d3b1504c6fe5a726dd15e216ba718e84a0e46a88fbe5ded3515"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]
[[package]]
@@ -4008,6 +4009,25 @@ dependencies = [
"windows-targets 0.52.6",
]
[[package]]
name = "windows-result"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d1043d8214f791817bab27572aaa8af63732e11bf84aa21a45a78d6c317ae0e"
dependencies = [
"windows-targets 0.52.6",
]
[[package]]
name = "windows-strings"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4cd9b125c486025df0eabcb585e62173c6c9eddcec5d117d3b6e8c30e2ee4d10"
dependencies = [
"windows-result 0.2.0",
"windows-targets 0.52.6",
]
[[package]]
name = "windows-sys"
version = "0.45.0"
@@ -4346,5 +4366,5 @@ checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.69",
"syn 2.0.70",
]

View File

@@ -1,5 +1,5 @@
[package]
name = "bevy-testing"
name = "another-boids-in-rust"
version = "0.1.0"
edition = "2021"

View File

@@ -1,371 +0,0 @@
use bevy::{
math::bounding::{Aabb2d, BoundingCircle, BoundingVolume, IntersectsVolume},
prelude::*,
sprite::MaterialMesh2dBundle,
};
// Using the default 2D camera they correspond 1:1 with screen pixels.
const PADDLE_SIZE: Vec2 = Vec2::new(120.0, 20.0);
const GAP_BETWEEN_PADDLE_AND_FLOOR: f32 = 60.0;
const PADDLE_SPEED: f32 = 500.0;
// How close can the paddle get to the wall
const PADDLE_PADDING: f32 = 10.0;
// We set the z-value of the ball to 1 so it renders on top in the case of overlapping sprites.
const BALL_STARTING_POSITION: Vec3 = Vec3::new(0.0, -50.0, 1.0);
const BALL_DIAMETER: f32 = 30.;
const BALL_SPEED: f32 = 400.0;
const INITIAL_BALL_DIRECTION: Vec2 = Vec2::new(0.5, -0.5);
const WALL_THICKNESS: f32 = 10.0;
// x coordinates
const LEFT_WALL: f32 = -450.;
const RIGHT_WALL: f32 = 450.;
// y coordinates
const BOTTOM_WALL: f32 = -300.;
const TOP_WALL: f32 = 300.;
const BRICK_SIZE: Vec2 = Vec2::new(100., 30.);
// These values are exact
const GAP_BETWEEN_PADDLE_AND_BRICKS: f32 = 270.0;
const GAP_BETWEEN_BRICKS: f32 = 5.0;
// These values are lower bounds, as the number of bricks is computed
const GAP_BETWEEN_BRICKS_AND_CEILING: f32 = 20.0;
const GAP_BETWEEN_BRICKS_AND_SIDES: f32 = 20.0;
const SCOREBOARD_FONT_SIZE: f32 = 40.0;
const SCOREBOARD_TEXT_PADDING: Val = Val::Px(5.0);
const BACKGROUND_COLOR: Color = Color::srgb(0.9, 0.9, 0.9);
const PADDLE_COLOR: Color = Color::srgb(0.3, 0.3, 0.7);
const BALL_COLOR: Color = Color::srgb(1.0, 0.5, 0.5);
const BRICK_COLOR: Color = Color::srgb(0.5, 0.5, 1.0);
const WALL_COLOR: Color = Color::srgb(0.8, 0.8, 0.8);
const TEXT_COLOR: Color = Color::srgb(0.5, 0.5, 1.0);
const SCORE_COLOR: Color = Color::srgb(1.0, 0.5, 0.5);
#[derive(Component)]
struct Paddle;
#[derive(Component)]
struct Ball;
#[derive(Component, Deref, DerefMut)]
struct Velocity(Vec2);
#[derive(Component)]
struct Collider;
#[derive(Event, Default)]
struct CollisionEvent;
#[derive(Component)]
struct Brick;
#[derive(Resource, Deref, DerefMut)]
struct Score(usize);
#[derive(Component)]
struct ScoreboardUi;
#[derive(Bundle)]
struct WallBundle {
sprite_bundle: SpriteBundle,
collider: Collider,
}
impl WallBundle {
fn new(location: WallLocation) -> Self {
WallBundle {
sprite_bundle: SpriteBundle {
transform: Transform {
translation: location.position().extend(0.0),
scale: location.size().extend(1.0),
..default()
},
sprite: Sprite {
color: WALL_COLOR,
..default()
},
..default()
},
collider: Collider,
}
}
}
enum WallLocation {
Right,
Top,
Left,
Bottom,
}
impl WallLocation {
fn position(&self) -> Vec2 {
match self {
WallLocation::Right => Vec2::new(RIGHT_WALL, 0.0),
WallLocation::Top => Vec2::new(0.0, TOP_WALL),
WallLocation::Left => Vec2::new(LEFT_WALL, 0.0),
WallLocation::Bottom => Vec2::new(0.0, BOTTOM_WALL),
}
}
fn size(&self) -> Vec2 {
let arena_height = TOP_WALL - BOTTOM_WALL;
let arena_width = RIGHT_WALL - LEFT_WALL;
assert!(arena_height > 0.0);
assert!(arena_width > 0.0);
match self {
WallLocation::Left | WallLocation::Right => {
Vec2::new(WALL_THICKNESS, arena_height + WALL_THICKNESS)
}
WallLocation::Top | WallLocation::Bottom => {
Vec2::new(WALL_THICKNESS + arena_width, WALL_THICKNESS)
}
}
}
}
enum Collision {
Right,
Top,
Left,
Bottom,
}
fn ball_collision(ball: BoundingCircle, bounding_box: Aabb2d) -> Option<Collision> {
if !ball.intersects(&bounding_box) {
return None;
}
let closest = bounding_box.closest_point(ball.center());
let offset = ball.center() - closest;
let side = if offset.x.abs() > offset.y.abs() {
if offset.x < 0.0 {
Collision::Left
} else {
Collision::Right
}
} else if offset.y > 0.0 {
Collision::Top
} else {
Collision::Bottom
};
Some(side)
}
pub struct BreakoutPlugin;
impl Plugin for BreakoutPlugin {
fn build(&self, app: &mut App) {
app.insert_resource(Score(0))
.insert_resource(ClearColor(BACKGROUND_COLOR))
.add_event::<CollisionEvent>()
.add_systems(Startup, setup)
.add_systems(FixedUpdate, (apply_velocity, move_paddle).chain())
.add_systems(FixedUpdate, (check_for_collisions, update_scoreboard));
}
}
fn setup(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<ColorMaterial>>,
) {
commands.spawn(Camera2dBundle::default());
// paddle
let paddle_y = BOTTOM_WALL + GAP_BETWEEN_PADDLE_AND_FLOOR;
commands.spawn((
SpriteBundle {
transform: Transform {
translation: Vec3::new(0.0, paddle_y, 0.0),
scale: PADDLE_SIZE.extend(1.0),
..default()
},
sprite: Sprite {
color: PADDLE_COLOR,
..default()
},
..default()
},
Paddle,
Collider,
));
// ball
commands.spawn((
MaterialMesh2dBundle {
mesh: meshes.add(Circle::default()).into(),
material: materials.add(BALL_COLOR),
transform: Transform::from_translation(BALL_STARTING_POSITION)
.with_scale(Vec2::splat(BALL_DIAMETER).extend(1.0)),
..default()
},
Ball,
Velocity(INITIAL_BALL_DIRECTION.normalize() * BALL_SPEED),
));
// scoreboard
commands.spawn((
ScoreboardUi,
TextBundle::from_sections([
TextSection::new(
"Score: ",
TextStyle {
font_size: SCOREBOARD_FONT_SIZE,
color: TEXT_COLOR,
..default()
},
),
TextSection::from_style(TextStyle {
font_size: SCOREBOARD_FONT_SIZE,
color: SCORE_COLOR,
..default()
}),
])
.with_style(Style {
position_type: PositionType::Absolute,
top: SCOREBOARD_TEXT_PADDING,
left: SCOREBOARD_TEXT_PADDING,
..default()
}),
));
// walls
commands.spawn(WallBundle::new(WallLocation::Left));
commands.spawn(WallBundle::new(WallLocation::Right));
commands.spawn(WallBundle::new(WallLocation::Bottom));
commands.spawn(WallBundle::new(WallLocation::Top));
// bricks
let total_width_of_bricks = (RIGHT_WALL - LEFT_WALL) - 2.0 * GAP_BETWEEN_BRICKS_AND_SIDES;
let bottom_edge_of_bricks = paddle_y + GAP_BETWEEN_PADDLE_AND_BRICKS;
let total_height_of_bricks = TOP_WALL - bottom_edge_of_bricks - GAP_BETWEEN_BRICKS_AND_CEILING;
assert!(total_width_of_bricks > 0.0);
assert!(total_height_of_bricks > 0.0);
// brick count is dynamic based on available game board space (and brick size, but that's a constant)
let n_columns = (total_width_of_bricks / (BRICK_SIZE.x + GAP_BETWEEN_BRICKS)).floor() as usize;
let n_rows = (total_height_of_bricks / (BRICK_SIZE.y + GAP_BETWEEN_BRICKS)).floor() as usize;
let n_vertical_gaps = n_columns - 1;
let center_of_bricks = (LEFT_WALL + RIGHT_WALL) / 2.0;
let left_edge_of_bricks = center_of_bricks
- (n_columns as f32 / 2.0 * BRICK_SIZE.x)
- n_vertical_gaps as f32 / 2.0 * GAP_BETWEEN_BRICKS;
// Bevy uses the center as the origin of an entity
// so calculate offset from left-edge to get the correct position
let offset_x = left_edge_of_bricks + BRICK_SIZE.x / 2.0;
let offset_y = bottom_edge_of_bricks + BRICK_SIZE.y / 2.0;
for row in 0..n_rows {
for column in 0..n_columns {
let brick_position = Vec2::new(
offset_x + column as f32 * (BRICK_SIZE.x + GAP_BETWEEN_BRICKS),
offset_y + row as f32 * (BRICK_SIZE.y + GAP_BETWEEN_BRICKS),
);
// spawn sprite, brick, collider
commands.spawn((
SpriteBundle {
transform: Transform {
translation: brick_position.extend(0.0),
scale: BRICK_SIZE.extend(1.0),
..default()
},
sprite: Sprite {
color: BRICK_COLOR,
..default()
},
..default()
},
Brick,
Collider,
));
}
}
}
fn apply_velocity(mut query: Query<(&mut Transform, &Velocity)>, time: Res<Time>) {
for (mut transform, velocity) in &mut query {
let vel_acc = **velocity * time.delta_seconds();
let vel_acc = vel_acc.extend(0.0);
transform.translation += vel_acc;
}
}
fn move_paddle(
keyboard_input: Res<ButtonInput<KeyCode>>,
mut query: Query<&mut Transform, With<Paddle>>,
time: Res<Time>,
) {
let mut paddle_transform = query.single_mut();
let mut direction = 0.0;
if keyboard_input.pressed(KeyCode::ArrowLeft) {
direction -= 1.0;
}
if keyboard_input.pressed(KeyCode::ArrowRight) {
direction += 1.0;
}
let new_paddle_position =
paddle_transform.translation.x + direction * PADDLE_SPEED * time.delta_seconds();
let left_bound = LEFT_WALL + WALL_THICKNESS / 2.0 + PADDLE_SIZE.x / 2.0 + PADDLE_PADDING;
let right_bound = RIGHT_WALL - WALL_THICKNESS / 2.0 + PADDLE_SIZE.x / 2.0 - PADDLE_PADDING;
paddle_transform.translation.x = new_paddle_position.clamp(left_bound, right_bound);
}
fn check_for_collisions(
mut commands: Commands,
mut score: ResMut<Score>,
mut ball_query: Query<(&mut Velocity, &Transform), With<Ball>>,
collider_query: Query<(Entity, &Transform, Option<&Brick>), With<Collider>>,
mut collision_events: EventWriter<CollisionEvent>,
) {
let (mut ball_velocity, ball_transform) = ball_query.single_mut();
for (collider_entity, collider_transform, maybe_brick) in &collider_query {
let collision = ball_collision(
BoundingCircle::new(ball_transform.translation.truncate(), BALL_DIAMETER / 2.0),
Aabb2d::new(
collider_transform.translation.truncate(),
collider_transform.scale.truncate() / 2.0,
),
);
if let Some(collision) = collision {
collision_events.send_default();
if maybe_brick.is_some() {
commands.entity(collider_entity).despawn();
**score += 1;
}
let mut reflect = (false, false);
match collision {
Collision::Right => reflect.0 = ball_velocity.x < 0.0,
Collision::Top => reflect.1 = ball_velocity.y < 0.0,
Collision::Left => reflect.0 = ball_velocity.x > 0.0,
Collision::Bottom => reflect.1 = ball_velocity.y > 0.0,
}
if reflect.0 {
ball_velocity.x = -ball_velocity.x;
}
if reflect.1 {
ball_velocity.y = -ball_velocity.y;
}
}
}
}
fn update_scoreboard(score: Res<Score>, mut query: Query<&mut Text, With<ScoreboardUi>>) {
let mut text = query.single_mut();
text.sections[1].value = score.to_string();
}

View File

@@ -1,43 +0,0 @@
use bevy::prelude::*;
#[derive(Component)]
struct Person;
#[derive(Component)]
struct Name(String);
fn add_people(mut commands: Commands) {
commands.spawn((Person, Name("John".to_string())));
commands.spawn((Person, Name("Jack".to_string())));
commands.spawn((Person, Name("Bill".to_string())));
}
#[derive(Resource)]
struct GreetTimer(Timer);
fn greet_people(time: Res<Time>, mut timer: ResMut<GreetTimer>, query: Query<&Name, With<Person>>) {
if timer.0.tick(time.delta()).just_finished() {
for name in &query {
println!("Hello {}!", name.0);
}
}
}
fn update_people(mut query: Query<&mut Name, With<Person>>) {
for mut name in &mut query {
if name.0 == "Bill" {
name.0 = "Jill".to_string();
break;
}
}
}
pub struct HelloPlugin;
impl Plugin for HelloPlugin {
fn build(&self, app: &mut App) {
app.insert_resource(GreetTimer(Timer::from_seconds(2.0, TimerMode::Repeating)))
.add_systems(Startup, add_people)
.add_systems(Update, (update_people, greet_people).chain());
}
}

View File

@@ -1,8 +1,6 @@
use bevy::prelude::*;
mod birdoids_plugin;
mod breakout_plugin;
mod hello_world_plugin;
use birdoids_plugin::BoidsPlugin;