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Get a bunch of lights to rotate.

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This commit is contained in:
Joe Ardent 2022-01-18 20:08:47 -08:00
parent cfc32a741f
commit 18032861d2
4 changed files with 97 additions and 132 deletions
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13
Cargo.lock generated
View file

@ -2386,9 +2386,18 @@ dependencies = [
[[package]] [[package]]
name = "sha1" name = "sha1"
version = "0.6.0" version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d" checksum = "c1da05c97445caa12d05e848c4a4fcbbea29e748ac28f7e80e9b010392063770"
dependencies = [
"sha1_smol",
]
[[package]]
name = "sha1_smol"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ae1a47186c03a32177042e55dbc5fd5aee900b8e0069a8d70fba96a9375cd012"
[[package]] [[package]]
name = "sharded-slab" name = "sharded-slab"

6
src/geometry.rs
View file

@ -3,7 +3,7 @@ use heron::prelude::{CollisionShape, RigidBody};
use crate::Label; use crate::Label;
pub const PLANET_RADIUS: f32 = 350.0; pub const PLANET_RADIUS: f32 = 340.0;
pub(crate) const SPAWN_ALTITUDE: f32 = PLANET_RADIUS + 100.0; pub(crate) const SPAWN_ALTITUDE: f32 = PLANET_RADIUS + 100.0;
#[derive(Component, Debug)] #[derive(Component, Debug)]
@ -55,8 +55,8 @@ fn spawn_cyberbike(mut commands: Commands, asset_server: Res<AssetServer>) {
}) })
.insert(CyberBike) .insert(CyberBike)
.insert(RigidBody::Dynamic) .insert(RigidBody::Dynamic)
.insert(CollisionShape::Cone { .insert(CollisionShape::Capsule {
half_height: 2.0, half_segment: 2.0,
radius: 0.8, radius: 0.8,
}) })
.insert(CyberBikeState::default()); .insert(CyberBikeState::default());

3
src/lib.rs
View file

@ -2,6 +2,7 @@ use bevy::{
ecs::schedule::StageLabel, ecs::schedule::StageLabel,
prelude::{ResMut, SystemLabel, Vec3, Windows}, prelude::{ResMut, SystemLabel, Vec3, Windows},
}; };
use heron::rapier_plugin::nalgebra::ComplexField;
pub mod action; pub mod action;
pub mod camera; pub mod camera;
@ -42,5 +43,5 @@ pub fn random_sphere_vec(r: &mut impl rand::prelude::Rng) -> Vec3 {
let x = 2.0 * x1 * sqrt; let x = 2.0 * x1 * sqrt;
let y = 2.0 * x2 * sqrt; let y = 2.0 * x2 * sqrt;
let z = 1.0 - 2.0 * ssum; let z = 1.0 - 2.0 * ssum;
Vec3::new(x, y, z) Vec3::new(x, y, z).normalize()
} }

185
src/lights.rs
View file

@ -1,23 +1,29 @@
use std::f32::consts::TAU;
use bevy::prelude::*; use bevy::prelude::*;
use rand::prelude::*;
use crate::geometry::PLANET_RADIUS; use crate::geometry::PLANET_RADIUS;
pub const LIGHT_RANGE: f32 = PLANET_RADIUS * 0.6; pub const LIGHT_RANGE: f32 = 50.0;
pub const LIGHT_DIST: f32 = PLANET_RADIUS * 1.2;
#[derive(Component)] #[derive(Component)]
struct Animate; struct AnimatedCyberLight {
axis: Vec3,
rate: f32,
}
fn spawn_lights( fn spawn_lights(
mut commands: Commands, mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>, mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>, mut materials: ResMut<Assets<StandardMaterial>>,
) { ) {
let red_light = PointLight { let pink_light = PointLight {
intensity: 1_000.0, intensity: 1_00.0,
range: LIGHT_RANGE, range: LIGHT_RANGE,
color: Color::RED, color: Color::PINK,
radius: 1.0, radius: 1.0,
shadows_enabled: true,
..Default::default() ..Default::default()
}; };
@ -26,14 +32,7 @@ fn spawn_lights(
range: LIGHT_RANGE, range: LIGHT_RANGE,
color: Color::BLUE, color: Color::BLUE,
radius: 1.0, radius: 1.0,
..Default::default() shadows_enabled: true,
};
let purple_light = PointLight {
intensity: 1_000.0,
range: LIGHT_RANGE,
color: Color::PURPLE,
radius: 1.0,
..Default::default() ..Default::default()
}; };
@ -42,100 +41,72 @@ fn spawn_lights(
brightness: 0.32, brightness: 0.32,
}); });
// east light let rng = &mut thread_rng();
commands // spawn 200 orbiting bisexual lights
.spawn_bundle(PointLightBundle { for _ in 0..255 {
transform: Transform::from_xyz(LIGHT_DIST, 0.0, 0.0), let hue = rng.gen_range(260.0..320.0);
point_light: purple_light, let saturation = rng.gen_range(0.8..0.95);
..Default::default() let lightness = rng.gen_range(0.4..0.7);
}) let color = Color::hsl(hue, saturation, lightness);
.with_children(|builder| {
builder.spawn_bundle(PbrBundle { let axis = crate::random_sphere_vec(rng);
mesh: meshes.add(Mesh::from(shape::UVSphere { let angle = rng.gen_range(0.0..TAU);
radius: 10.0, let rate: f32 = rng.gen_range(7.0..10.0);
..Default::default() let rate = rate.to_radians();
})), let rotation = Quat::from_axis_angle(axis, angle);
material: materials.add(StandardMaterial {
base_color: Color::PURPLE, let altitude = PLANET_RADIUS + rng.gen_range(8.0..20.0);
emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0), let perp = axis.any_orthonormal_vector();
..Default::default() let translation = perp * altitude;
}), let transform = Transform::from_translation(translation);
..Default::default()
}); let intensity = rng.gen_range(500.0..900.0);
}) let radius = rng.gen::<f32>() * 2.5; // why can't this infer the gen type?
.insert(Animate); let point_light = PointLight {
intensity,
range: LIGHT_RANGE,
color,
radius,
shadows_enabled: true,
..Default::default()
};
// west light
commands commands
.spawn_bundle((
AnimatedCyberLight { axis, rate },
Transform::from_rotation(rotation),
GlobalTransform::default(),
))
.with_children(|parent| {
parent
.spawn_bundle(PointLightBundle { .spawn_bundle(PointLightBundle {
transform: Transform::from_xyz(-LIGHT_DIST, 0.0, 0.0), transform,
point_light: purple_light, point_light,
..Default::default() ..Default::default()
}) })
.with_children(|builder| { .with_children(|builder| {
builder.spawn_bundle(PbrBundle { builder.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::UVSphere { mesh: meshes.add(Mesh::from(shape::Icosphere {
radius: 10.0, radius,
..Default::default() subdivisions: 2,
})), })),
material: materials.add(StandardMaterial { material: materials.add(StandardMaterial {
base_color: Color::PURPLE, base_color: color,
emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0), emissive: color,
..Default::default() ..Default::default()
}), }),
..Default::default() ..Default::default()
}); });
}) }); // mesh child
.insert(Animate); }); // light child
// north light }
commands
.spawn_bundle(PointLightBundle {
transform: Transform::from_xyz(0.0, 0.0, LIGHT_DIST),
point_light: purple_light,
..Default::default()
})
.with_children(|builder| {
builder.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::UVSphere {
radius: 10.0,
..Default::default()
})),
material: materials.add(StandardMaterial {
base_color: Color::PURPLE,
emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
..Default::default()
}),
..Default::default()
});
})
.insert(Animate);
// south light
commands
.spawn_bundle(PointLightBundle {
transform: Transform::from_xyz(0.0, 0.0, -LIGHT_DIST),
point_light: purple_light,
..Default::default()
})
.with_children(|builder| {
builder.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::UVSphere {
radius: 10.0,
..Default::default()
})),
material: materials.add(StandardMaterial {
base_color: Color::PURPLE,
emissive: Color::rgba_linear(50.0, 0.0, 50.0, 0.0),
..Default::default()
}),
..Default::default()
});
})
.insert(Animate);
// up light // up light
commands commands
.spawn_bundle(PointLightBundle { .spawn_bundle(PointLightBundle {
transform: Transform::from_xyz(0.0, LIGHT_DIST, 0.0), transform: Transform::from_xyz(0.0, PLANET_RADIUS + 30.0, 0.0),
point_light: red_light, point_light: pink_light,
..Default::default() ..Default::default()
}) })
.with_children(|builder| { .with_children(|builder| {
@ -155,7 +126,7 @@ fn spawn_lights(
// down light // down light
commands commands
.spawn_bundle(PointLightBundle { .spawn_bundle(PointLightBundle {
transform: Transform::from_xyz(0.0, -LIGHT_DIST, 0.0), transform: Transform::from_xyz(0.0, -PLANET_RADIUS - 30.0, 0.0),
point_light: blue_light, point_light: blue_light,
..Default::default() ..Default::default()
}) })
@ -175,28 +146,12 @@ fn spawn_lights(
}); });
} }
fn animate_lights( fn orbit_lights(time: Res<Time>, mut query: Query<(&mut Transform, &AnimatedCyberLight)>) {
time: Res<Time>,
mut query: Query<&mut Transform, (With<PointLight>, With<Animate>)>,
) {
let dt = time.delta_seconds(); let dt = time.delta_seconds();
for mut transform in query.iter_mut() { for (mut transform, light) in query.iter_mut() {
let translation = &transform.translation; let AnimatedCyberLight { axis, rate } = *light;
let x = translation.x; let theta = rate * dt;
let y = translation.y; transform.rotation *= Quat::from_axis_angle(axis, theta);
let z = if translation.z.abs() < 0.1 {
translation.z + 0.15
} else {
translation.z
};
let rads = 10.0f32.to_radians();
let anim_rate = rads * dt;
let theta = z.atan2(x) + anim_rate;
let x_new = LIGHT_DIST * theta.cos();
let z_new = LIGHT_DIST * theta.sin();
*transform = Transform::from_xyz(x_new, y, z_new);
} }
} }
@ -204,6 +159,6 @@ pub struct CyberSpaceLightsPlugin;
impl Plugin for CyberSpaceLightsPlugin { impl Plugin for CyberSpaceLightsPlugin {
fn build(&self, app: &mut App) { fn build(&self, app: &mut App) {
app.add_startup_system(spawn_lights) app.add_startup_system(spawn_lights)
.add_system(animate_lights); .add_system(orbit_lights);
} }
} }