Struct RuntimeResources 

pub struct RuntimeResources { /* private fields */ }

Typed resource registry stored on super::ViewportRuntime.

Accessible from super::context::RuntimeStepContext each frame. Resources persist across frames until explicitly removed or the runtime is dropped.

Each type T maps to at most one value. Inserting again overwrites the previous value of the same type.

Ownership rules

Resources are engine-owned: they live for the lifetime of the ViewportRuntime they belong to. Use resources for state that two or more plugins need to share within the same runtime instance. Use plugin-local struct fields for state that belongs to only one plugin and does not need to be shared.

Example

// Plugin A (ANIMATE phase) writes a shared value.
fn step(&mut self, ctx: &mut RuntimeStepContext) {
    ctx.resources.insert(MySharedState { value: 42 });
}

// Plugin B (POST_SIM phase) reads it.
fn step(&mut self, ctx: &mut RuntimeStepContext) {
    if let Some(state) = ctx.resources.get::<MySharedState>() {
        println!("shared value: {}", state.value);
    }
}

Implementations

impl RuntimeResources

pub fn new() -> Self

Create an empty resource registry.

pub fn insert<T: Send + 'static>(&mut self, value: T)

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

pub fn get<T: Send + 'static>(&self) -> Option<&T>

Get a shared reference to a resource. Returns None if not present.

pub fn get_mut<T: Send + 'static>(&mut self) -> Option<&mut T>

Get a mutable reference to a resource. Returns None if not present.

pub fn remove<T: Send + 'static>(&mut self) -> Option<T>

Remove a resource and return it. Returns None if not present.

pub fn contains<T: Send + 'static>(&self) -> bool

Returns true if a resource of this type is present.

Trait Implementations

impl Default for RuntimeResources

fn default() -> RuntimeResources

Returns the “default value” for a type.