Struct avian3d::collision::LayerMask

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pub struct LayerMask(pub u32);
Expand description

A bitmask for layers.

A LayerMask can be constructed from bits directly, or from types implementing PhysicsLayer.

#[derive(PhysicsLayer, Clone, Copy, Debug)]
enum GameLayer {
    Player, // Layer 0
    Enemy,  // Layer 1
    Ground, // Layer 2
}

// Here, `GameLayer::Enemy` is automatically converted to a `LayerMask` for the comparison.
assert_eq!(LayerMask(0b0010), GameLayer::Enemy);

Bitwise operations can be used to modify and combine masks:

let mask1 = LayerMask(0b0001);
let mask2 = LayerMask(0b0010);
assert_eq!(mask1 | mask2, LayerMask(0b0011));

// You can also add layers from `u32` bitmasks and compare against them directly.
assert_eq!(mask1 | 0b0010, 0b0011);

Another way to use LayerMask is to define layers as constants:

// `1 << n` is bitshifting: the first layer shifted by `n` layers.
pub const FIRST_LAYER: LayerMask = LayerMask(1 << 0);
pub const LAST_LAYER: LayerMask = LayerMask(1 << 31);

// Bitwise operations for `LayerMask` unfortunately can't be const, so we need to access the `u32` values.
pub const COMBINED: LayerMask = LayerMask(FIRST_LAYER.0 | LAST_LAYER.0);

Tuple Fields§

§0: u32

Implementations§

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impl LayerMask

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pub const ALL: Self = _

Contains all layers.

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pub const NONE: Self = _

Contains no layers.

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pub fn add(&mut self, layers: impl Into<Self>)

Adds the given layers to self.

§Example
let mut layers = LayerMask(0b1010);

// These are equivalent
layers.add(0b0001);
layers |= 0b0001;

assert_eq!(layers, 0b1011);
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pub fn remove(&mut self, layers: impl Into<Self>)

Removes the given layers from self.

§Example
let mut layers = LayerMask(0b1010);

// These are equivalent
layers.remove(0b0010);
layers &= !0b0010;

assert_eq!(layers, 0b1000);
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pub fn has_all(self, layers: impl Into<Self>) -> bool

Returns true if self contains all of the given layers.

§Example
let mut layers = LayerMask(0b1010);

// These are equivalent
assert!(layers.has_all(0b1010));
assert!((layers & 0b1010) != 0);

assert!(!layers.has_all(0b0100));
assert!((layers & 0b0100) == 0);

Methods from Deref<Target = u32>§

1.43.0 · source

pub const MIN: u32 = 0u32

1.43.0 · source

pub const MAX: u32 = 4_294_967_295u32

1.53.0 · source

pub const BITS: u32 = 32u32

Trait Implementations§

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impl<L: Into<LayerMask>> BitAnd<L> for LayerMask

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type Output = LayerMask

The resulting type after applying the & operator.
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fn bitand(self, rhs: L) -> Self::Output

Performs the & operation. Read more
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impl<L: Into<LayerMask>> BitAndAssign<L> for LayerMask

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fn bitand_assign(&mut self, rhs: L)

Performs the &= operation. Read more
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impl<L: Into<LayerMask>> BitOr<L> for LayerMask

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type Output = LayerMask

The resulting type after applying the | operator.
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fn bitor(self, rhs: L) -> Self::Output

Performs the | operation. Read more
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impl<L: Into<LayerMask>> BitOrAssign<L> for LayerMask

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fn bitor_assign(&mut self, rhs: L)

Performs the |= operation. Read more
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impl<L: Into<LayerMask>> BitXor<L> for LayerMask

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type Output = LayerMask

The resulting type after applying the ^ operator.
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fn bitxor(self, rhs: L) -> Self::Output

Performs the ^ operation. Read more
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impl<L: Into<LayerMask>> BitXorAssign<L> for LayerMask

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fn bitxor_assign(&mut self, rhs: L)

Performs the ^= operation. Read more
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impl Clone for LayerMask

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fn clone(&self) -> LayerMask

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for LayerMask

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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 Deref for LayerMask

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type Target = u32

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl DerefMut for LayerMask

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
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impl<L: Into<LayerMask>, const N: usize> From<[L; N]> for LayerMask

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fn from(value: [L; N]) -> Self

Converts to this type from the input type.
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impl<L: PhysicsLayer> From<L> for LayerMask

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fn from(layer: L) -> Self

Converts to this type from the input type.
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impl From<u32> for LayerMask

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fn from(layer: u32) -> Self

Converts to this type from the input type.
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impl FromReflect for LayerMask
where Self: Any + Send + Sync, u32: FromReflect + TypePath + RegisterForReflection,

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fn from_reflect(reflect: &dyn Reflect) -> Option<Self>

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 LayerMask
where Self: Any + Send + Sync, u32: 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 Not for LayerMask

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type Output = LayerMask

The resulting type after applying the ! operator.
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fn not(self) -> Self::Output

Performs the unary ! operation. Read more
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impl Ord for LayerMask

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fn cmp(&self, other: &LayerMask) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl<L: Into<LayerMask> + Copy> PartialEq<L> for LayerMask

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fn eq(&self, other: &L) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for LayerMask

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fn partial_cmp(&self, other: &LayerMask) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Reflect for LayerMask
where Self: Any + Send + Sync, u32: 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<Self>) -> Box<dyn Any>

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

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

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

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

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

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) -> 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<Self>) -> ReflectOwned

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

Returns a “partial equality” comparison result. Read more
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fn debug(&self, f: &mut Formatter<'_>) -> Result

Debug formatter for the value. 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 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 TupleStruct for LayerMask
where Self: Any + Send + Sync, u32: FromReflect + TypePath + RegisterForReflection,

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fn field(&self, index: usize) -> Option<&dyn Reflect>

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

Returns a mutable reference to the value of the field with index index as a &mut dyn Reflect.
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fn field_len(&self) -> usize

Returns the number of fields in the tuple struct.
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fn iter_fields(&self) -> TupleStructFieldIter<'_>

Returns an iterator over the values of the tuple struct’s fields.
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fn clone_dynamic(&self) -> DynamicTupleStruct

Clones the struct into a DynamicTupleStruct.
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impl TypePath for LayerMask
where Self: Any + Send + Sync,

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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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fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous. Read more
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fn crate_name() -> Option<&'static str>

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 LayerMask
where Self: Any + Send + Sync, u32: 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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impl Copy for LayerMask

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impl Eq for LayerMask

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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, U> AsBindGroupShaderType<U> for T
where U: ShaderType, &'a T: for<'a> Into<U>,

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fn as_bind_group_shader_type(&self, _images: &RenderAssets<GpuImage>) -> U

Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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impl<Q, K> Comparable<K> for Q
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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<T> Downcast for T
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Convert 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.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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Casts the type to dyn Any.
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This method tests for self and other values to be equal. Read more
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Checks if this value is equivalent to the given key. Read more
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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Compare self to key and return true if they are equal.
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