Struct bevy::audio::SpatialListener

pub struct SpatialListener {
    pub left_ear_offset: Vec3,
    pub right_ear_offset: Vec3,
}
Expand description

Settings for the listener for spatial audio sources.

This must be accompanied by Transform and GlobalTransform. Only one entity with a SpatialListener should be present at any given time.

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§left_ear_offset: Vec3

Left ear position relative to the GlobalTransform.

§right_ear_offset: Vec3

Right ear position relative to the GlobalTransform.

Implementations§

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impl SpatialListener

pub fn new(gap: f32) -> SpatialListener

Creates a new SpatialListener component.

gap is the distance between the left and right “ears” of the listener. Ears are positioned on the x axis.

Examples found in repository?
examples/audio/spatial_audio_2d.rs (line 50)
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fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<ColorMaterial>>,
    asset_server: Res<AssetServer>,
) {
    // Space between the two ears
    let gap = 400.0;

    // sound emitter
    commands.spawn((
        MaterialMesh2dBundle {
            mesh: meshes.add(Circle::new(15.0)).into(),
            material: materials.add(Color::from(BLUE)),
            transform: Transform::from_translation(Vec3::new(0.0, 50.0, 0.0)),
            ..default()
        },
        Emitter::default(),
        AudioBundle {
            source: asset_server.load("sounds/Windless Slopes.ogg"),
            settings: PlaybackSettings::LOOP.with_spatial(true),
        },
    ));

    let listener = SpatialListener::new(gap);
    commands
        .spawn((SpatialBundle::default(), listener.clone()))
        .with_children(|parent| {
            // left ear
            parent.spawn(SpriteBundle {
                sprite: Sprite {
                    color: RED.into(),
                    custom_size: Some(Vec2::splat(20.0)),
                    ..default()
                },
                transform: Transform::from_xyz(-gap / 2.0, 0.0, 0.0),
                ..default()
            });

            // right ear
            parent.spawn(SpriteBundle {
                sprite: Sprite {
                    color: LIME.into(),
                    custom_size: Some(Vec2::splat(20.0)),
                    ..default()
                },
                transform: Transform::from_xyz(gap / 2.0, 0.0, 0.0),
                ..default()
            });
        });

    // example instructions
    commands.spawn(
        TextBundle::from_section(
            "Up/Down/Left/Right: Move Listener\nSpace: Toggle Emitter Movement",
            TextStyle::default(),
        )
        .with_style(Style {
            position_type: PositionType::Absolute,
            bottom: Val::Px(12.0),
            left: Val::Px(12.0),
            ..default()
        }),
    );

    // camera
    commands.spawn(Camera2dBundle::default());
}
More examples
Hide additional examples
examples/audio/spatial_audio_3d.rs (line 40)
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fn setup(
    mut commands: Commands,
    asset_server: Res<AssetServer>,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<StandardMaterial>>,
) {
    // Space between the two ears
    let gap = 4.0;

    // sound emitter
    commands.spawn((
        PbrBundle {
            mesh: meshes.add(Sphere::new(0.2).mesh().uv(32, 18)),
            material: materials.add(Color::from(BLUE)),
            transform: Transform::from_xyz(0.0, 0.0, 0.0),
            ..default()
        },
        Emitter::default(),
        AudioBundle {
            source: asset_server.load("sounds/Windless Slopes.ogg"),
            settings: PlaybackSettings::LOOP.with_spatial(true),
        },
    ));

    let listener = SpatialListener::new(gap);
    commands
        .spawn((SpatialBundle::default(), listener.clone()))
        .with_children(|parent| {
            // left ear indicator
            parent.spawn(PbrBundle {
                mesh: meshes.add(Cuboid::new(0.2, 0.2, 0.2)),
                material: materials.add(Color::from(RED)),
                transform: Transform::from_translation(listener.left_ear_offset),
                ..default()
            });

            // right ear indicator
            parent.spawn(PbrBundle {
                mesh: meshes.add(Cuboid::new(0.2, 0.2, 0.2)),
                material: materials.add(Color::from(LIME)),
                transform: Transform::from_translation(listener.right_ear_offset),
                ..default()
            });
        });

    // light
    commands.spawn(DirectionalLightBundle {
        transform: Transform::from_xyz(4.0, 8.0, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
        ..default()
    });

    // example instructions
    commands.spawn(
        TextBundle::from_section(
            "Up/Down/Left/Right: Move Listener\nSpace: Toggle Emitter Movement",
            TextStyle::default(),
        )
        .with_style(Style {
            position_type: PositionType::Absolute,
            bottom: Val::Px(12.0),
            left: Val::Px(12.0),
            ..default()
        }),
    );

    // camera
    commands.spawn(Camera3dBundle {
        transform: Transform::from_xyz(0.0, 5.0, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
        ..default()
    });
}

Trait Implementations§

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impl Clone for SpatialListener

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fn clone(&self) -> SpatialListener

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Component for SpatialListener
where SpatialListener: Send + Sync + 'static,

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const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::Table

A constant indicating the storage type used for this component.
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fn register_component_hooks(_hooks: &mut ComponentHooks)

Called when registering this component, allowing mutable access to its ComponentHooks.
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impl Debug for SpatialListener

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

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

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fn default() -> SpatialListener

Returns the “default value” for a type. Read more
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impl FromReflect for SpatialListener
where SpatialListener: Any + Send + Sync, Vec3: FromReflect + TypePath + RegisterForReflection,

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fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<SpatialListener>

Constructs a concrete instance of Self from a reflected value.
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fn take_from_reflect( reflect: Box<dyn Reflect>, ) -> Result<Self, Box<dyn Reflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails. Read more
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impl GetTypeRegistration for SpatialListener
where SpatialListener: Any + Send + Sync, Vec3: FromReflect + TypePath + RegisterForReflection,

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fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.
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fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type. Read more
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impl Reflect for SpatialListener
where SpatialListener: Any + Send + Sync, Vec3: FromReflect + TypePath + RegisterForReflection,

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fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value. Read more
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fn into_any(self: Box<SpatialListener>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.
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fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.
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fn into_reflect(self: Box<SpatialListener>) -> Box<dyn Reflect>

Casts this type to a boxed reflected value.
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fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a reflected value.
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fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable reflected value.
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fn clone_value(&self) -> Box<dyn Reflect>

Clones the value as a Reflect trait object. Read more
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fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value. Read more
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fn try_apply( &mut self, value: &(dyn Reflect + 'static), ) -> Result<(), ApplyError>

Tries to apply a reflected value to this value. Read more
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fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type. Read more
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fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type. Read more
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fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type. Read more
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fn reflect_owned(self: Box<SpatialListener>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type. Read more
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fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>

Returns a “partial equality” comparison result. Read more
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fn apply(&mut self, value: &(dyn Reflect + 'static))

Applies a reflected value to this value. Read more
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fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type). Read more
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fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Debug formatter for the value. Read more
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fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value. Read more
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fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type. Read more
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impl Struct for SpatialListener
where SpatialListener: Any + Send + Sync, Vec3: FromReflect + TypePath + RegisterForReflection,

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fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field named name as a &dyn Reflect.
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fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field named name as a &mut dyn Reflect.
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fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field with index index as a &dyn Reflect.
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fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field with index index as a &mut dyn Reflect.
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fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.
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fn field_len(&self) -> usize

Returns the number of fields in the struct.
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Returns an iterator over the values of the reflectable fields for this struct.
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fn clone_dynamic(&self) -> DynamicStruct

Clones the struct into a DynamicStruct.
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impl TypePath for SpatialListener

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fn type_path() -> &'static str

Returns the fully qualified path of the underlying type. Read more
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fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type. Read more
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Returns the name of the type, or None if it is anonymous. Read more
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Returns the name of the crate the type is in, or None if it is anonymous. Read more
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fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous. Read more
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impl Typed for SpatialListener
where SpatialListener: Any + Send + Sync, Vec3: FromReflect + TypePath + RegisterForReflection,

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fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.

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