Struct bones_lib::ecs::prelude::AtomicResource

pub struct AtomicResource<T>
where
    T: HasSchema,
{ /* private fields */ }

A handle to a resource from a Resources collection.

This is not the resource itself, but a cheaply clonable handle to it.

To access the resource you must borrow it with either borrow() or borrow_mut().

Implementations

impl<T> AtomicResource<T>

where T: HasSchema,

pub fn empty() -> AtomicResource<T>

Create a new, empty resource cell.

pub fn new(data: T) -> AtomicResource<T>

Create a new resource cell with the given data.

pub fn from_untyped( untyped: Arc<UntypedResource>, ) -> Result<AtomicResource<T>, SchemaMismatchError>

Create from an UntypedResource.

pub fn remove(&self) -> Option<T>

Remove the resource from the cell, leaving the cell empty.

pub fn borrow(&self) -> Option<Ref<'_, T>>

Lock the resource for reading.

This returns a read guard, very similar to an RwLock.

pub fn borrow_mut(&self) -> Option<RefMut<'_, T>>

Lock the resource for read-writing.

This returns a write guard, very similar to an RwLock.

pub fn into_untyped(self) -> Arc<UntypedResource>

Convert into an untyped resource.

impl<T> AtomicResource<T>

where T: HasSchema + FromWorld,

pub fn init(&self, world: &World)

Initialize the resource using it’s FromWorld implementation, if it is not present.

pub fn init_borrow(&self, world: &World) -> Ref<'_, T>

Borrow the resource, initializing it if it doesn’t exist.

pub fn init_borrow_mut(&self, world: &World) -> RefMut<'_, T>

Borrow the resource, initializing it if it doesn’t exist.

Trait Implementations

impl<T> Clone for AtomicResource<T>

where T: Clone + HasSchema,

fn clone(&self) -> AtomicResource<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for AtomicResource<T>

where T: HasSchema + Debug,

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

Formats the value using the given formatter.

impl<T> Default for AtomicResource<T>

where T: HasSchema + Default,

fn default() -> AtomicResource<T>

Returns the “default value” for a type.