pub struct RayCast2d {
pub ray: Ray2d,
pub max: f32,
/* private fields */
}
Expand description
A raycast intersection test for 2D bounding volumes
Fields§
§ray: Ray2d
The ray for the test
max: f32
The maximum distance for the ray
Implementations§
source§impl RayCast2d
impl RayCast2d
sourcepub fn new(origin: Vec2, direction: Direction2d, max: f32) -> RayCast2d
pub fn new(origin: Vec2, direction: Direction2d, max: f32) -> RayCast2d
Construct a RayCast2d
from an origin, Direction2d
, and max distance.
sourcepub fn from_ray(ray: Ray2d, max: f32) -> RayCast2d
pub fn from_ray(ray: Ray2d, max: f32) -> RayCast2d
Examples found in repository?
examples/2d/bounding_2d.rs (line 310)
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fn get_and_draw_ray(gizmos: &mut Gizmos, time: &Time) -> RayCast2d {
let ray = Vec2::new(time.elapsed_seconds().cos(), time.elapsed_seconds().sin());
let dist = 150. + (0.5 * time.elapsed_seconds()).sin().abs() * 500.;
let aabb_ray = Ray2d {
origin: ray * 250.,
direction: Direction2d::new_unchecked(-ray),
};
let ray_cast = RayCast2d::from_ray(aabb_ray, dist - 20.);
draw_ray(gizmos, &ray_cast);
ray_cast
}
sourcepub fn direction_recip(&self) -> Vec2
pub fn direction_recip(&self) -> Vec2
Get the cached multiplicative inverse of the direction of the ray.
sourcepub fn aabb_intersection_at(&self, aabb: &Aabb2d) -> Option<f32>
pub fn aabb_intersection_at(&self, aabb: &Aabb2d) -> Option<f32>
Get the distance of an intersection with an Aabb2d
, if any.
Examples found in repository?
examples/2d/bounding_2d.rs (line 325)
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fn ray_cast_system(
mut gizmos: Gizmos,
time: Res<Time>,
mut volumes: Query<(&CurrentVolume, &mut Intersects)>,
) {
let ray_cast = get_and_draw_ray(&mut gizmos, &time);
for (volume, mut intersects) in volumes.iter_mut() {
let toi = match volume {
CurrentVolume::Aabb(a) => ray_cast.aabb_intersection_at(a),
CurrentVolume::Circle(c) => ray_cast.circle_intersection_at(c),
};
**intersects = toi.is_some();
if let Some(toi) = toi {
for r in [1., 2., 3.] {
gizmos.circle_2d(
ray_cast.ray.origin + *ray_cast.ray.direction * toi,
r,
Color::GREEN,
);
}
}
}
}
sourcepub fn circle_intersection_at(&self, circle: &BoundingCircle) -> Option<f32>
pub fn circle_intersection_at(&self, circle: &BoundingCircle) -> Option<f32>
Get the distance of an intersection with a BoundingCircle
, if any.
Examples found in repository?
examples/2d/bounding_2d.rs (line 326)
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fn ray_cast_system(
mut gizmos: Gizmos,
time: Res<Time>,
mut volumes: Query<(&CurrentVolume, &mut Intersects)>,
) {
let ray_cast = get_and_draw_ray(&mut gizmos, &time);
for (volume, mut intersects) in volumes.iter_mut() {
let toi = match volume {
CurrentVolume::Aabb(a) => ray_cast.aabb_intersection_at(a),
CurrentVolume::Circle(c) => ray_cast.circle_intersection_at(c),
};
**intersects = toi.is_some();
if let Some(toi) = toi {
for r in [1., 2., 3.] {
gizmos.circle_2d(
ray_cast.ray.origin + *ray_cast.ray.direction * toi,
r,
Color::GREEN,
);
}
}
}
}
Trait Implementations§
source§impl IntersectsVolume<Aabb2d> for RayCast2d
impl IntersectsVolume<Aabb2d> for RayCast2d
source§fn intersects(&self, volume: &Aabb2d) -> bool
fn intersects(&self, volume: &Aabb2d) -> bool
Check if a volume intersects with this intersection test
source§impl IntersectsVolume<BoundingCircle> for RayCast2d
impl IntersectsVolume<BoundingCircle> for RayCast2d
source§fn intersects(&self, volume: &BoundingCircle) -> bool
fn intersects(&self, volume: &BoundingCircle) -> bool
Check if a volume intersects with this intersection test
Auto Trait Implementations§
impl Freeze for RayCast2d
impl RefUnwindSafe for RayCast2d
impl Send for RayCast2d
impl Sync for RayCast2d
impl Unpin for RayCast2d
impl UnwindSafe for RayCast2d
Blanket Implementations§
source§impl<T, U> AsBindGroupShaderType<U> for T
impl<T, U> AsBindGroupShaderType<U> for T
source§fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U
fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U
Return the
T
ShaderType
for self
. When used in AsBindGroup
derives, it is safe to assume that all images in self
exist.source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
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where ConcreteType
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.source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
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(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.