Struct Ellipse 

pub struct Ellipse<T> { /* private fields */ }

Represent an entity with a 2D ellipse in the xy plane.

The base representation has semi-axes (0.5, 0.5). Provide per-item axes in sync to render ellipses of different sizes and aspect ratios. Nominally, the z coordinate of the ellipses should be set to 0. Choose a different value to control the back to front draw order.

To use:

• Add setup to the Startup schedule.
• Call sync in an Update schedule that runs after AdvanceSet.

Implementations

impl<T: Send + Sync + 'static> Ellipse<T>

pub fn setup( material: In<MaterialParameters>, commands: Commands<'_, '_>, buffers: ResMut<'_, Assets<ShaderStorageBuffer>>, meshes: ResMut<'_, Assets<Mesh>>, materials: ResMut<'_, Assets<Material>>, )

Create assets to render ellipses.

pub fn sync<I>( commands: &mut Commands<'_, '_>, ellipse_representation: Res<'_, Representation<T>>, query: Query<'_, '_, (Entity, &mut Transform), With<Self>>, ellipses: I, )

where I: IntoIterator<Item = (Vec3, f32, f32, f32)>,

Copy the current positions of simulation particles to bevy entities.

Trait Implementations

impl<T> Component for Ellipse<T>

where Self: Send + Sync + 'static,

const STORAGE_TYPE: StorageType = ::bevy::ecs::component::StorageType::Table

A constant indicating the storage type used for this component.

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>].

fn register_required_components( _requiree: ComponentId, required_components: &mut RequiredComponentsRegistrator<'_, '_>, )

Registers required components.

fn clone_behavior() -> ComponentCloneBehavior

Called when registering this component, allowing to override clone function (or disable cloning altogether) for this component.

fn relationship_accessor() -> Option<ComponentRelationshipAccessor<Self>>

Returns [ComponentRelationshipAccessor] required for working with relationships in dynamic contexts.

fn on_add() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_add [ComponentHook] for this [Component] if one is defined.

fn on_insert() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_insert [ComponentHook] for this [Component] if one is defined.

fn on_replace() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_replace [ComponentHook] for this [Component] if one is defined.

fn on_remove() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_remove [ComponentHook] for this [Component] if one is defined.

fn on_despawn() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_despawn [ComponentHook] for this [Component] if one is defined.

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]