Struct bevy::math::bounding::BoundingCircleCast

pub struct BoundingCircleCast {
    pub ray: RayCast2d,
    pub circle: BoundingCircle,
}

An intersection test that casts a BoundingCircle along a ray.

Fields

ray: RayCast2d

The ray along which to cast the bounding volume

circle: BoundingCircle

The circle that is being cast

Implementations

impl BoundingCircleCast

pub fn new( circle: BoundingCircle, origin: Vec2, direction: Direction2d, max: f32 ) -> BoundingCircleCast

Construct a BoundingCircleCast from a BoundingCircle, origin, Direction2d, and max distance.

pub fn from_ray( circle: BoundingCircle, ray: Ray2d, max: f32 ) -> BoundingCircleCast

Construct a BoundingCircleCast from a BoundingCircle, Ray2d, and max distance.

pub fn circle_collision_at(&self, circle: BoundingCircle) -> Option<f32>

Get the distance at which the BoundingCircles collide, if at all.

Examples found in repository

examples/2d/bounding_2d.rs (line 386)

fn bounding_circle_cast_system(
    mut gizmos: Gizmos,
    time: Res<Time>,
    mut volumes: Query<(&CurrentVolume, &mut Intersects)>,
) {
    let ray_cast = get_and_draw_ray(&mut gizmos, &time);
    let circle_cast = BoundingCircleCast {
        circle: BoundingCircle::new(Vec2::ZERO, 15.),
        ray: ray_cast,
    };

    for (volume, mut intersects) in volumes.iter_mut() {
        let toi = match *volume {
            CurrentVolume::Aabb(_) => None,
            CurrentVolume::Circle(c) => circle_cast.circle_collision_at(c),
        };

        **intersects = toi.is_some();
        if let Some(toi) = toi {
            gizmos.circle_2d(
                circle_cast.ray.ray.origin
                    + *circle_cast.ray.ray.direction * toi
                    + circle_cast.circle.center(),
                circle_cast.circle.radius(),
                Color::GREEN,
            );
        }
    }
}

Trait Implementations

impl Clone for BoundingCircleCast

fn clone(&self) -> BoundingCircleCast

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BoundingCircleCast

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl IntersectsVolume<BoundingCircle> for BoundingCircleCast

fn intersects(&self, volume: &BoundingCircle) -> bool

Check if a volume intersects with this intersection test