use bevy::{
prelude::*,
sprite::{MaterialMesh2dBundle, Mesh2dHandle},
};
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_systems(Startup, setup)
.run();
}
const X_EXTENT: f32 = 600.;
fn setup(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<ColorMaterial>>,
) {
commands.spawn(Camera2dBundle::default());
let shapes = [
Mesh2dHandle(meshes.add(Circle { radius: 50.0 })),
Mesh2dHandle(meshes.add(Ellipse::new(25.0, 50.0))),
Mesh2dHandle(meshes.add(Capsule2d::new(25.0, 50.0))),
Mesh2dHandle(meshes.add(Rectangle::new(50.0, 100.0))),
Mesh2dHandle(meshes.add(RegularPolygon::new(50.0, 6))),
Mesh2dHandle(meshes.add(Triangle2d::new(
Vec2::Y * 50.0,
Vec2::new(-50.0, -50.0),
Vec2::new(50.0, -50.0),
))),
];
let num_shapes = shapes.len();
for (i, shape) in shapes.into_iter().enumerate() {
let color = Color::hsl(360. * i as f32 / num_shapes as f32, 0.95, 0.7);
commands.spawn(MaterialMesh2dBundle {
mesh: shape,
material: materials.add(color),
transform: Transform::from_xyz(
-X_EXTENT / 2. + i as f32 / (num_shapes - 1) as f32 * X_EXTENT,
0.0,
0.0,
),
..default()
});
}
}