Struct Resources

Source

pub struct Resources<const SEND: bool> { /* private fields */ }

Expand description

The backing store for all Resources stored in the World.

Implementations§

Source §

impl<const SEND: bool> Resources<SEND>

Source

pub fn len(&self) -> usize

The total number of resources stored in the World

Source

pub fn iter(&self) -> impl Iterator<Item = (ComponentId, &ResourceData<SEND>)>

Iterate over all resources that have been initialized, i.e. given a ComponentId

Source

pub fn is_empty(&self) -> bool

Returns true if there are no resources stored in the World, false otherwise.

Source

pub fn get(&self, component_id: ComponentId) -> Option<&ResourceData<SEND>>

Gets read-only access to a resource, if it exists.

Source

pub fn clear(&mut self)

Clears all resources.

Trait Implementations§

Source §

impl<const SEND: bool> Default for Resources<SEND>

Source §

fn default() -> Resources<SEND>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

§

impl<const SEND: bool> UnwindSafe for Resources<SEND>

Blanket Implementations§

Source §

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

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

Source §

impl<T> Downcast for T
where T: Any,

Source §

fn into_any(self: Box<T>) -> Box<dyn Any>

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.

Source §

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.

Source §