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use super::*;
/// Bounds component.
///
/// Use to set custom bounds or read bounds defined by a mesh.
///
/// If an entity has a render component and it doesn't exist it will be added and
/// set to match the mesh, but will be available a frame later.
pub struct Bounds {
id: Entity,
}
impl Bounds {
/// Get the local space bounding box.
///
/// Convenience for calling [`Self::bounding_box_min`] and [`Self::bounding_box_max`].
pub fn bounding_box(&self) -> macaw::BoundingBox {
// TODO: optimize to one FFI call
macaw::BoundingBox {
min: self.bounding_box_min().get(),
max: self.bounding_box_max().get(),
}
}
/// Set the local space bounding box.
///
/// Convenience for calling [`Self::bounding_box_min`] and [`Self::bounding_box_max`].
pub fn set_bounding_box(&self, bbox: macaw::BoundingBox) {
// TODO: optimize to one FFI call
self.bounding_box_min().set(bbox.min);
self.bounding_box_max().set(bbox.max);
}
}
impl std::fmt::Debug for Bounds {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("Bounds")
.field("entity", &self.id.name())
.field("bounding_box_min", &self.bounding_box_min().get())
.field("bounding_box_max", &self.bounding_box_max().get())
.field(
"bounding_sphere_radius",
&self.bounding_sphere_radius().get(),
)
.field("match_render_shape", &self.match_render_shape().get())
.finish()
}
}
impl Bounds {
impl_world_accessor!(
/// Returns a `ValueAccessor` for the bounding box min of the entity.
///
/// Used to set/get/animate the min.
///
/// For physics this will be used when the body is setup, for spatial queries it will be used as is.
Bounds,
BoundingBoxMin,
Vec3,
bounding_box_min,
ValueAccessorReadWriteAnimate
);
impl_world_accessor!(
/// Returns a `ValueAccessor` for the bounding box max of the entity.
///
/// Used to set/get/animate the max.
///
/// For physics this will be used when the body is setup, for spatial queries it will be used as is.
Bounds,
BoundingBoxMax,
Vec3,
bounding_box_max,
ValueAccessorReadWriteAnimate
);
impl_world_accessor!(
/// Returns a `ValueAccessor` for the bounding sphere radius of the entity.
///
/// Used to set/get/animate the radius.
///
/// For physics this will be used when the body is setup, for spatial queries it will be used as is.
Bounds,
BoundingSphereRadius,
f32,
bounding_sphere_radius,
ValueAccessorReadWriteAnimate
);
impl_world_accessor!(
/// Returns a `ValueAccessor` for the match render shape toggle of the entity.
///
/// Used to set/get whether these bounds will match the render shape.
///
/// Set this to false if you want to set a custom bounding shape, box or sphere when the entity has a render component with a shape set.
Bounds,
MatchRenderShape,
bool,
match_render_shape,
ValueAccessorReadWrite
);
impl_world_accessor!(
/// Returns a `ValueAccessor` for the bounding shape of the entity.
///
/// Used to set/get the bounding shape.
///
/// Use this to set a custom collider/physics/spatial query shape with MatchRenderShape set to false.
Bounds,
BoundingShape,
Shape,
shape,
ValueAccessorDataReadWrite
);
/// Convenience method to set up both the sphere and the bounding box
/// to contain a certain radius.
///
pub fn create_sphere_bounds(&self, radius: f32) {
self.set_bounding_box(macaw::BoundingBox::from_min_max(
Vec3::splat(-radius),
Vec3::splat(radius),
));
self.bounding_sphere_radius().set(radius);
self.match_render_shape().set(false);
}
}
impl_world_component!(Bounds);