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use crate::RayCastSource;
use bevy::prelude::*;
use std::marker::PhantomData;
#[derive(Component)]
pub struct DebugCursor<T> {
_phantom: PhantomData<T>,
}
impl<T> Default for DebugCursor<T> {
fn default() -> Self {
DebugCursor {
_phantom: PhantomData::default(),
}
}
}
#[derive(Component)]
pub struct DebugCursorTail<T> {
_phantom: PhantomData<T>,
}
impl<T> Default for DebugCursorTail<T> {
fn default() -> Self {
DebugCursorTail {
_phantom: PhantomData::default(),
}
}
}
#[derive(Component)]
pub struct DebugCursorMesh<T> {
_phantom: PhantomData<T>,
}
impl<T> Default for DebugCursorMesh<T> {
fn default() -> Self {
DebugCursorMesh {
_phantom: PhantomData::default(),
}
}
}
#[allow(clippy::type_complexity)]
#[allow(clippy::too_many_arguments)]
pub fn update_debug_cursor<T: 'static + Send + Sync>(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
added_sources_query: Query<&RayCastSource<T>, Added<RayCastSource<T>>>,
mut cursor_query: Query<&mut GlobalTransform, With<DebugCursor<T>>>,
mut cursor_tail_query: Query<
&mut GlobalTransform,
(With<DebugCursorTail<T>>, Without<DebugCursor<T>>),
>,
mut visibility_query: Query<&mut Visibility, With<DebugCursorMesh<T>>>,
raycast_source_query: Query<&RayCastSource<T>>,
) {
let cube_size = 0.04;
let cube_tail_scale = 20.0;
let ball_size = 0.08;
let debug_material = &materials.add(StandardMaterial {
base_color: Color::rgb(0.0, 1.0, 0.0),
unlit: true,
..Default::default()
});
for _source in added_sources_query.iter() {
commands
.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::Icosphere {
subdivisions: 4,
radius: ball_size,
})),
material: debug_material.clone(),
..Default::default()
})
.with_children(|parent| {
let mut transform = Transform::from_translation(Vec3::new(
0.0,
(cube_size * cube_tail_scale) / 2.0,
0.0,
));
transform.apply_non_uniform_scale(Vec3::from([1.0, cube_tail_scale, 1.0]));
parent
.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::Cube { size: cube_size })),
material: debug_material.clone(),
transform,
..Default::default()
})
.insert(DebugCursorTail::<T>::default())
.insert(DebugCursorMesh::<T>::default());
})
.insert(DebugCursor::<T>::default())
.insert(DebugCursorMesh::<T>::default());
}
for raycast_source in raycast_source_query.iter() {
match raycast_source.intersect_top() {
Some(top_intersection) => {
let transform_new = top_intersection.1.normal_ray().to_transform();
for mut transform in cursor_query.iter_mut() {
*transform = GlobalTransform::from_matrix(transform_new);
}
for mut transform in cursor_tail_query.iter_mut() {
let scale = Vec3::from([1.0, cube_tail_scale, 1.0]);
let rotation = Quat::default();
let translation = Vec3::new(0.0, (cube_size * cube_tail_scale) / 2.0, 0.0);
let transform_move =
Mat4::from_scale_rotation_translation(scale, rotation, translation);
*transform = GlobalTransform::from_matrix(transform_new * transform_move)
}
for mut visible in &mut visibility_query.iter_mut() {
visible.is_visible = true;
}
}
None => {
for mut visible in &mut visibility_query.iter_mut() {
visible.is_visible = false;
}
}
}
}
}