Struct bevy_mod_picking::prelude::On

pub struct On<E>where
    E: EntityEvent,{ /* private fields */ }

An event listener with a callback that is triggered when an EntityEvent bubbles past or targets this entity.

Implementations

impl<E> On<E>where E: EntityEvent,

pub fn run<Marker>(callback: impl IntoSystem<(), (), Marker>) -> On<E>

Run a callback system every time this event listener is triggered. This can be a closure or a function, as described by bevy’s documentation. The only notable difference from Bevy systems is that the callback system can access a resource with event data, [ListenerInput]. You can more easily access this with the system params Listener and ListenerMut.

pub fn add_command<C>() -> On<E>where C: From<ListenerInput<E>> + Command + Send + Sync + 'static,

Add a single [Command] any time this event listener is triggered. The command must implement From<E>.

pub fn commands_mut( func: fn(_: &ListenerInput<E>, _: &mut Commands<'_, '_>) ) -> On<E>

Get mutable access to [Commands] any time this event listener is triggered.

pub fn target_commands_mut( func: fn(_: &ListenerInput<E>, _: &mut EntityCommands<'_, '_, '_>) ) -> On<E>

Get mutable access to the target entity’s [EntityCommands] using a closure any time this event listener is triggered.

pub fn target_insert(bundle: impl Bundle + Clone) -> On<E>

Insert a bundle on the target entity any time this event listener is triggered.

pub fn target_remove<B>() -> On<E>where B: Bundle,

Remove a bundle from the target entity any time this event listener is triggered.

pub fn target_component_mut<C>( func: fn(_: &ListenerInput<E>, _: &mut C) ) -> On<E>where C: Component,

Get mutable access to a specific component on the target entity using a closure any time this event listener is triggered. If the component does not exist, an error will be logged.

pub fn listener_commands_mut( func: fn(_: &ListenerInput<E>, _: &mut EntityCommands<'_, '_, '_>) ) -> On<E>

Get mutable access to the listener entity’s [EntityCommands] using a closure any time this event listener is triggered.

pub fn listener_insert(bundle: impl Bundle + Clone) -> On<E>

Insert a bundle on the listener entity any time this event listener is triggered.

pub fn listener_remove<B>() -> On<E>where B: Bundle,

Remove a bundle from the listener entity any time this event listener is triggered.

pub fn listener_component_mut<C>( func: fn(_: &ListenerInput<E>, _: &mut C) ) -> On<E>where C: Component,

Get mutable access to a specific component on the listener entity using a closure any time this event listener is triggered. If the component does not exist, an error will be logged.

pub fn send_event<F>() -> On<E>where F: Event + From<ListenerInput<E>>,

Send an event F any time this event listener is triggered.

Trait Implementations

impl<E> Component for On<E>where E: EntityEvent, On<E>: Send + Sync + 'static,

type Storage = TableStorage

impl<E> Default for On<E>where E: Default + EntityEvent,

fn default() -> On<E>

Returns the “default value” for a type.