outfly/src/world.rs
2024-03-16 23:38:14 +01:00

130 lines
3.6 KiB
Rust

use crate::camera;
use bevy::prelude::*;
use bevy::core_pipeline::Skybox;
use bevy::asset::LoadState;
use bevy::render::render_resource::{TextureViewDescriptor, TextureViewDimension};
use bevy::pbr::CascadeShadowConfigBuilder;
use std::f32::consts::PI;
#[derive(Resource)]
pub struct Cubemap {
is_loaded: bool,
image_handle: Handle<Image>,
}
const CUBEMAP_PATH: &str = "textures/stars_cubemap.png";
pub fn setup(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
mut ambient_light: ResMut<AmbientLight>,
asset_server: Res<AssetServer>,
) {
// Add skybox
let skybox_handle = asset_server.load(CUBEMAP_PATH);
commands.spawn((
Camera3dBundle {
transform: Transform::from_xyz(0.0, 0.0, 8.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
},
camera::CameraController::default(),
Skybox {
image: skybox_handle.clone(),
brightness: 150.0,
},
));
commands.insert_resource(Cubemap {
is_loaded: false,
image_handle: skybox_handle,
});
// Add spheres
let sphere_radius = 1.0;
let sphere_handle = meshes.add(Sphere::new(sphere_radius));
let white_handle = materials.add(StandardMaterial {
base_color: Color::GRAY,
perceptual_roughness: 1.0,
..default()
});
commands.spawn(PbrBundle {
mesh: sphere_handle.clone(),
material: white_handle.clone(),
transform: Transform::from_xyz(
0.0,
sphere_radius,
0.0,
),
..default()
});
// Space is DARK
ambient_light.brightness = 0.0;
// Add Light
commands.spawn(PointLightBundle {
transform: Transform::from_xyz(5.0, 5.0, 0.0),
point_light: PointLight {
intensity: 0.0,
range: 500.0,
color: Color::WHITE,
shadows_enabled: true,
..default()
},
..default()
});
commands.spawn(DirectionalLightBundle {
directional_light: DirectionalLight {
illuminance: light_consts::lux::OVERCAST_DAY,
shadows_enabled: true,
..default()
},
transform: Transform::from_rotation(Quat::from_euler(
EulerRot::ZYX,
0.0,
PI / 2.,
-PI / 4.,
)),
cascade_shadow_config: CascadeShadowConfigBuilder {
first_cascade_far_bound: 7.0,
maximum_distance: 25.0,
..default()
}
.into(),
..default()
});
}
pub fn load_cubemap_asset(
mut cubemap: ResMut<Cubemap>,
asset_server: Res<AssetServer>,
) {
cubemap.image_handle = asset_server.load(CUBEMAP_PATH);
cubemap.is_loaded = false;
}
pub fn asset_loaded(
asset_server: Res<AssetServer>,
mut images: ResMut<Assets<Image>>,
mut cubemap: ResMut<Cubemap>,
mut skyboxes: Query<&mut Skybox>,
) {
if !cubemap.is_loaded && asset_server.load_state(&cubemap.image_handle) == LoadState::Loaded {
let image = images.get_mut(&cubemap.image_handle).unwrap();
if image.texture_descriptor.array_layer_count() == 1 {
image.reinterpret_stacked_2d_as_array(image.height() / image.width());
image.texture_view_descriptor = Some(TextureViewDescriptor {
dimension: Some(TextureViewDimension::Cube),
..default()
});
}
for mut skybox in &mut skyboxes {
skybox.image = cubemap.image_handle.clone();
}
cubemap.is_loaded = true;
}
}