Struct Resources 

pub struct Resources { /* private fields */ }

Container for engine resources.

Resources are stored by type and can be accessed through typed getters. Each resource type can only have one instance.

Example

use astrelis::resource::Resources;

struct GameConfig {
    title: String,
    max_fps: u32,
}

let mut resources = Resources::new();
resources.insert(GameConfig {
    title: "My Game".to_string(),
    max_fps: 60,
});

let config = resources.get::<GameConfig>().unwrap();
assert_eq!(config.title, "My Game");

Implementations

impl Resources

pub fn new() -> Self

Create a new empty resource container.

pub fn insert<R: Resource>(&mut self, resource: R) -> Option<R>

Insert a resource, replacing any existing resource of the same type.

Returns the previous resource if one existed.

pub fn get<R: Resource>(&self) -> Option<&R>

Get a reference to a resource.

pub fn get_mut<R: Resource>(&mut self) -> Option<&mut R>

Get a mutable reference to a resource.

pub fn remove<R: Resource>(&mut self) -> Option<R>

Remove a resource and return it.

pub fn contains<R: Resource>(&self) -> bool

Check if a resource exists.

pub fn len(&self) -> usize

Get the number of resources.

pub fn is_empty(&self) -> bool

Check if there are no resources.

pub fn clear(&mut self)

Clear all resources.

pub fn get_or_insert_with<R: Resource>( &mut self, f: impl FnOnce() -> R, ) -> &mut R

Get or insert a resource with a default value.

pub fn get_or_default<R: Resource + Default>(&mut self) -> &mut R

Get or insert a resource with its default value.

pub fn type_names(&self) -> impl Iterator<Item = &'static str> + '_

List all resource type names (for debugging).

Trait Implementations

impl Debug for Resources

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

Formats the value using the given formatter.

impl Default for Resources

fn default() -> Resources

Returns the “default value” for a type.