pub struct Hovered(pub bool);
Expand description
A component that allows users to use regular Bevy change detection to determine when the pointer enters or leaves an entity. Users should insert this component on an entity to indicate interest in knowing about hover state changes.
The component’s boolean value will be true
whenever the pointer is currently directly hovering
over the entity, or any of the entity’s descendants (as defined by the ChildOf
relationship). This is consistent with the behavior of the CSS :hover
pseudo-class, which
applies to the element and all of its descendants.
The contained boolean value is guaranteed to only be mutated when the pointer enters or leaves
the entity, allowing Bevy change detection to be used efficiently. This is in contrast to the
HoverMap
resource, which is updated every frame.
Typically, a simple hoverable entity or widget will have this component added to it. More complex widgets can have this component added to each hoverable part.
The computational cost of keeping the Hovered
components up to date is relatively cheap, and
linear in the number of entities that have the Hovered
component inserted.
Tuple Fields§
§0: bool
Implementations§
Trait Implementations§
Source§impl Component for Hovered
impl Component for Hovered
Source§const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::Table
const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::Table
Source§type Mutability = Immutable
type Mutability = Immutable
Component<Mutability = Mutable>
,
while immutable components will instead have Component<Mutability = Immutable>
. Read moreSource§fn register_required_components(
_requiree: ComponentId,
required_components: &mut RequiredComponentsRegistrator<'_, '_>,
)
fn register_required_components( _requiree: ComponentId, required_components: &mut RequiredComponentsRegistrator<'_, '_>, )
Source§fn clone_behavior() -> ComponentCloneBehavior
fn clone_behavior() -> ComponentCloneBehavior
Source§fn on_add() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
fn on_add() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
Source§fn on_insert() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
fn on_insert() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
Source§fn on_replace() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
fn on_replace() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
Source§fn on_remove() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
fn on_remove() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
Source§fn on_despawn() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
fn on_despawn() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>
Source§fn map_entities<E>(_this: &mut Self, _mapper: &mut E)where
E: EntityMapper,
fn map_entities<E>(_this: &mut Self, _mapper: &mut E)where
E: EntityMapper,
EntityMapper
. This is used to remap entities in contexts like scenes and entity cloning.
When deriving Component
, this is populated by annotating fields containing entities with #[entities]
Read moreSource§impl FromReflect for Hovered
impl FromReflect for Hovered
Source§fn from_reflect(reflect: &(dyn PartialReflect + 'static)) -> Option<Hovered>
fn from_reflect(reflect: &(dyn PartialReflect + 'static)) -> Option<Hovered>
Self
from a reflected value.Source§fn take_from_reflect(
reflect: Box<dyn PartialReflect>,
) -> Result<Self, Box<dyn PartialReflect>>
fn take_from_reflect( reflect: Box<dyn PartialReflect>, ) -> Result<Self, Box<dyn PartialReflect>>
Self
using,
constructing the value using from_reflect
if that fails. Read moreSource§impl GetTypeRegistration for Hovered
impl GetTypeRegistration for Hovered
Source§fn get_type_registration() -> TypeRegistration
fn get_type_registration() -> TypeRegistration
TypeRegistration
for this type.Source§fn register_type_dependencies(registry: &mut TypeRegistry)
fn register_type_dependencies(registry: &mut TypeRegistry)
Source§impl PartialReflect for Hovered
impl PartialReflect for Hovered
Source§fn get_represented_type_info(&self) -> Option<&'static TypeInfo>
fn get_represented_type_info(&self) -> Option<&'static TypeInfo>
Source§fn try_apply(
&mut self,
value: &(dyn PartialReflect + 'static),
) -> Result<(), ApplyError>
fn try_apply( &mut self, value: &(dyn PartialReflect + 'static), ) -> Result<(), ApplyError>
Source§fn reflect_kind(&self) -> ReflectKind
fn reflect_kind(&self) -> ReflectKind
Source§fn reflect_ref(&self) -> ReflectRef<'_>
fn reflect_ref(&self) -> ReflectRef<'_>
Source§fn reflect_mut(&mut self) -> ReflectMut<'_>
fn reflect_mut(&mut self) -> ReflectMut<'_>
Source§fn reflect_owned(self: Box<Hovered>) -> ReflectOwned
fn reflect_owned(self: Box<Hovered>) -> ReflectOwned
Source§fn try_into_reflect(
self: Box<Hovered>,
) -> Result<Box<dyn Reflect>, Box<dyn PartialReflect>>
fn try_into_reflect( self: Box<Hovered>, ) -> Result<Box<dyn Reflect>, Box<dyn PartialReflect>>
Source§fn try_as_reflect(&self) -> Option<&(dyn Reflect + 'static)>
fn try_as_reflect(&self) -> Option<&(dyn Reflect + 'static)>
Source§fn try_as_reflect_mut(&mut self) -> Option<&mut (dyn Reflect + 'static)>
fn try_as_reflect_mut(&mut self) -> Option<&mut (dyn Reflect + 'static)>
Source§fn into_partial_reflect(self: Box<Hovered>) -> Box<dyn PartialReflect>
fn into_partial_reflect(self: Box<Hovered>) -> Box<dyn PartialReflect>
Source§fn as_partial_reflect(&self) -> &(dyn PartialReflect + 'static)
fn as_partial_reflect(&self) -> &(dyn PartialReflect + 'static)
Source§fn as_partial_reflect_mut(&mut self) -> &mut (dyn PartialReflect + 'static)
fn as_partial_reflect_mut(&mut self) -> &mut (dyn PartialReflect + 'static)
Source§fn reflect_partial_eq(
&self,
value: &(dyn PartialReflect + 'static),
) -> Option<bool>
fn reflect_partial_eq( &self, value: &(dyn PartialReflect + 'static), ) -> Option<bool>
Source§fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>
fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Source§fn reflect_clone(&self) -> Result<Box<dyn Reflect>, ReflectCloneError>
fn reflect_clone(&self) -> Result<Box<dyn Reflect>, ReflectCloneError>
Self
using reflection. Read moreSource§fn apply(&mut self, value: &(dyn PartialReflect + 'static))
fn apply(&mut self, value: &(dyn PartialReflect + 'static))
Source§fn to_dynamic(&self) -> Box<dyn PartialReflect>
fn to_dynamic(&self) -> Box<dyn PartialReflect>
Source§fn reflect_clone_and_take<T>(&self) -> Result<T, ReflectCloneError>
fn reflect_clone_and_take<T>(&self) -> Result<T, ReflectCloneError>
PartialReflect
, combines reflect_clone
and
take
in a useful fashion, automatically constructing an appropriate
ReflectCloneError
if the downcast fails. Read moreSource§fn reflect_hash(&self) -> Option<u64>
fn reflect_hash(&self) -> Option<u64>
Source§fn is_dynamic(&self) -> bool
fn is_dynamic(&self) -> bool
Source§impl Reflect for Hovered
impl Reflect for Hovered
Source§fn into_any(self: Box<Hovered>) -> Box<dyn Any>
fn into_any(self: Box<Hovered>) -> Box<dyn Any>
Box<dyn Any>
. Read moreSource§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut dyn Any
. Read moreSource§fn into_reflect(self: Box<Hovered>) -> Box<dyn Reflect>
fn into_reflect(self: Box<Hovered>) -> Box<dyn Reflect>
Source§fn as_reflect(&self) -> &(dyn Reflect + 'static)
fn as_reflect(&self) -> &(dyn Reflect + 'static)
Source§fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)
fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)
Source§impl TupleStruct for Hovered
impl TupleStruct for Hovered
Source§fn field(&self, index: usize) -> Option<&(dyn PartialReflect + 'static)>
fn field(&self, index: usize) -> Option<&(dyn PartialReflect + 'static)>
index
as a
&dyn Reflect
.Source§fn field_mut(
&mut self,
index: usize,
) -> Option<&mut (dyn PartialReflect + 'static)>
fn field_mut( &mut self, index: usize, ) -> Option<&mut (dyn PartialReflect + 'static)>
index
as a &mut dyn Reflect
.Source§fn iter_fields(&self) -> TupleStructFieldIter<'_> ⓘ
fn iter_fields(&self) -> TupleStructFieldIter<'_> ⓘ
Source§fn to_dynamic_tuple_struct(&self) -> DynamicTupleStruct
fn to_dynamic_tuple_struct(&self) -> DynamicTupleStruct
DynamicTupleStruct
from this tuple struct.Source§fn get_represented_tuple_struct_info(&self) -> Option<&'static TupleStructInfo>
fn get_represented_tuple_struct_info(&self) -> Option<&'static TupleStructInfo>
None
if TypeInfo
is not available.Source§impl TypePath for Hovered
impl TypePath for Hovered
Source§fn type_path() -> &'static str
fn type_path() -> &'static str
Source§fn short_type_path() -> &'static str
fn short_type_path() -> &'static str
Source§fn type_ident() -> Option<&'static str>
fn type_ident() -> Option<&'static str>
Source§fn crate_name() -> Option<&'static str>
fn crate_name() -> Option<&'static str>
impl Copy for Hovered
impl Eq for Hovered
impl StructuralPartialEq for Hovered
Auto Trait Implementations§
impl Freeze for Hovered
impl RefUnwindSafe for Hovered
impl Send for Hovered
impl Sync for Hovered
impl Unpin for Hovered
impl UnwindSafe for Hovered
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<GpuImage>) -> U
fn as_bind_group_shader_type(&self, _images: &RenderAssets<GpuImage>) -> U
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
Source§impl<C> Bundle for Cwhere
C: Component,
impl<C> Bundle for Cwhere
C: Component,
fn component_ids( components: &mut ComponentsRegistrator<'_>, ids: &mut impl FnMut(ComponentId), )
Source§fn get_component_ids(
components: &Components,
ids: &mut impl FnMut(Option<ComponentId>),
)
fn get_component_ids( components: &Components, ids: &mut impl FnMut(Option<ComponentId>), )
Source§impl<C> BundleFromComponents for Cwhere
C: Component,
impl<C> BundleFromComponents for Cwhere
C: Component,
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
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>
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
, which can then be
downcast
into Box<dyn 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>
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
, which can then be further
downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.Source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.Source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.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>
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>
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.Source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.Source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.Source§impl<T> DowncastSend for T
impl<T> DowncastSend for T
Source§impl<T> DowncastSync for T
impl<T> DowncastSync for T
Source§impl<C> DynamicBundle for Cwhere
C: Component,
impl<C> DynamicBundle for Cwhere
C: Component,
Source§unsafe fn get_components(
ptr: MovingPtr<'_, C>,
func: &mut impl FnMut(StorageType, OwningPtr<'_>),
) -> <C as DynamicBundle>::Effect
unsafe fn get_components( ptr: MovingPtr<'_, C>, func: &mut impl FnMut(StorageType, OwningPtr<'_>), ) -> <C as DynamicBundle>::Effect
Source§unsafe fn apply_effect(
_ptr: MovingPtr<'_, MaybeUninit<C>>,
_entity: &mut EntityWorldMut<'_>,
)
unsafe fn apply_effect( _ptr: MovingPtr<'_, MaybeUninit<C>>, _entity: &mut EntityWorldMut<'_>, )
Source§impl<T> DynamicTypePath for Twhere
T: TypePath,
impl<T> DynamicTypePath for Twhere
T: TypePath,
Source§fn reflect_type_path(&self) -> &str
fn reflect_type_path(&self) -> &str
TypePath::type_path
.Source§fn reflect_short_type_path(&self) -> &str
fn reflect_short_type_path(&self) -> &str
Source§fn reflect_type_ident(&self) -> Option<&str>
fn reflect_type_ident(&self) -> Option<&str>
TypePath::type_ident
.Source§fn reflect_crate_name(&self) -> Option<&str>
fn reflect_crate_name(&self) -> Option<&str>
TypePath::crate_name
.Source§fn reflect_module_path(&self) -> Option<&str>
fn reflect_module_path(&self) -> Option<&str>
Source§impl<T> DynamicTyped for Twhere
T: Typed,
impl<T> DynamicTyped for Twhere
T: Typed,
Source§fn reflect_type_info(&self) -> &'static TypeInfo
fn reflect_type_info(&self) -> &'static TypeInfo
Typed::type_info
.Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<T> FromWorld for Twhere
T: Default,
impl<T> FromWorld for Twhere
T: Default,
Source§fn from_world(_world: &mut World) -> T
fn from_world(_world: &mut World) -> T
Creates Self
using default()
.
Source§impl<T> GetPath for T
impl<T> GetPath for T
Source§fn reflect_path<'p>(
&self,
path: impl ReflectPath<'p>,
) -> Result<&(dyn PartialReflect + 'static), ReflectPathError<'p>>
fn reflect_path<'p>( &self, path: impl ReflectPath<'p>, ) -> Result<&(dyn PartialReflect + 'static), ReflectPathError<'p>>
path
. Read moreSource§fn reflect_path_mut<'p>(
&mut self,
path: impl ReflectPath<'p>,
) -> Result<&mut (dyn PartialReflect + 'static), ReflectPathError<'p>>
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path
. Read moreSource§fn path<'p, T>(
&self,
path: impl ReflectPath<'p>,
) -> Result<&T, ReflectPathError<'p>>where
T: Reflect,
fn path<'p, T>(
&self,
path: impl ReflectPath<'p>,
) -> Result<&T, ReflectPathError<'p>>where
T: Reflect,
path
. Read moreSource§fn path_mut<'p, T>(
&mut self,
path: impl ReflectPath<'p>,
) -> Result<&mut T, ReflectPathError<'p>>where
T: Reflect,
fn path_mut<'p, T>(
&mut self,
path: impl ReflectPath<'p>,
) -> Result<&mut T, ReflectPathError<'p>>where
T: Reflect,
path
. Read moreSource§impl<S> GetTupleStructField for Swhere
S: TupleStruct,
impl<S> GetTupleStructField for Swhere
S: TupleStruct,
Source§impl<T, W> HasTypeWitness<W> for Twhere
W: MakeTypeWitness<Arg = T>,
T: ?Sized,
impl<T, W> HasTypeWitness<W> for Twhere
W: MakeTypeWitness<Arg = T>,
T: ?Sized,
Source§impl<T> Identity for Twhere
T: ?Sized,
impl<T> Identity for Twhere
T: ?Sized,
Source§impl<T> Instrument for T
impl<T> Instrument for T
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Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
self
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variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
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otherwise. Read more