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PointerCaptureMap

Struct PointerCaptureMap 

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pub struct PointerCaptureMap(pub HashMap<PointerId, (Entity, HitData)>);
Expand description

Overrides the HoverMap for captured pointers, forcing a single entity to be reported as hovered regardless of where the pointer physically is.

When a pointer is captured by an entity, that entity is reported as the sole hover target for that pointer. This keeps interactions (like dragging a slider) working correctly even when the pointer drifts outside the entity’s bounding box while a button is held.

Use PointerCaptureMap::capture to lock a pointer to an entity, and PointerCaptureMap::release to remove the lock. Captures are automatically cleaned up when the associated pointer entity is removed.

A pointer’s capture is also released automatically when that pointer reports a button release or cancel action.

Tuple Fields§

§0: HashMap<PointerId, (Entity, HitData)>

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impl PointerCaptureMap

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pub fn capture(&mut self, pointer: PointerId, entity: Entity, hit: HitData)

Lock pointer to entity. The provided hit is injected into the HoverMap for the duration of the capture so downstream systems see consistent hit data.

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pub fn release(&mut self, pointer: PointerId) -> Option<(Entity, HitData)>

Remove the capture for pointer, returning the previously captured entity and hit data if one existed.

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pub fn get(&self, pointer: &PointerId) -> Option<(Entity, &HitData)>

Return the captured (Entity, &HitData) for pointer, or None if not captured.

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pub fn is_captured(&self, pointer: &PointerId) -> bool

Returns true if pointer is currently captured.

Trait Implementations§

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impl Component for PointerCaptureMap
where Self: Send + Sync + 'static,

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const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::SparseSet

A constant indicating the storage type used for this component.
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type Mutability = Mutable

A marker type to assist Bevy with determining if this component is mutable, or immutable. Mutable components will have Component<Mutability = Mutable>, while immutable components will instead have Component<Mutability = Immutable>. Read more
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fn register_required_components( _requiree: ComponentId, required_components: &mut RequiredComponentsRegistrator<'_, '_>, )

Registers required components. Read more
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fn clone_behavior() -> ComponentCloneBehavior

Called when registering this component, allowing to override clone function (or disable cloning altogether) for this component. Read more
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fn relationship_accessor() -> Option<ComponentRelationshipAccessor<Self>>

Returns ComponentRelationshipAccessor required for working with relationships in dynamic contexts. Read more
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fn on_add() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_add ComponentHook for this Component if one is defined.
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fn on_insert() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_insert ComponentHook for this Component if one is defined.
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fn on_discard() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_discard ComponentHook for this Component if one is defined.
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fn on_remove() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_remove ComponentHook for this Component if one is defined.
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fn on_despawn() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_despawn ComponentHook for this Component if one is defined.
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fn map_entities<E>(_this: &mut Self, _mapper: &mut E)
where E: EntityMapper,

Maps the entities on this component using the given 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 more
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const HAS_SUMMARY_TICK: bool = false

Set this constant to true if the component should track a summary tick. Read more
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impl Debug for PointerCaptureMap

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

Formats the value using the given formatter. Read more
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impl Default for PointerCaptureMap

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fn default() -> PointerCaptureMap

Returns the “default value” for a type. Read more
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impl Resource for PointerCaptureMap
where Self: Send + Sync + 'static,

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<C> Bundle for C
where C: Component,

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fn component_ids( components: &mut ComponentsRegistrator<'_>, ) -> impl Iterator<Item = ComponentId> + use<C>

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fn get_component_ids( components: &Components, ) -> impl Iterator<Item = Option<ComponentId>>

Returns an iterator over this Bundle’s component ids. This will be None if the component has not been registered.
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impl<C> BundleFromComponents for C
where C: Component,

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unsafe fn from_components<T, F>(ctx: &mut T, func: &mut F) -> C
where F: for<'a> FnMut(&'a mut T) -> OwningPtr<'a>,

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where T: Any + Send,

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fn into_any_send(self: Box<T>) -> Box<dyn Any + Send>

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impl<C> DynamicBundle for C
where C: Component,

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type Effect = ()

An operation on the entity that happens after inserting this bundle.
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unsafe fn get_components( ptr: MovingPtr<'_, C>, func: &mut impl FnMut(StorageType, OwningPtr<'_>), ) -> <C as DynamicBundle>::Effect

Moves the components out of the bundle. Read more
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unsafe fn apply_effect( _ptr: MovingPtr<'_, MaybeUninit<C>>, _entity: &mut EntityWorldMut<'_>, )

Applies the after-effects of spawning this bundle. Read more
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fn from(t: T) -> T

Returns the argument unchanged.

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where T: Default,

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fn from_world(_world: &mut World) -> T

Creates Self using default().

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where T: ?Sized,

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type Type = T

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