Struct bevy::render::render_phase::DrawFunctionsInternal

pub struct DrawFunctionsInternal<P>
where
    P: PhaseItem,
{
    pub draw_functions: Vec<Box<dyn Draw<P>>>,
    pub indices: HashMap<TypeId, DrawFunctionId, NoOpTypeIdHash>,
}

Stores all Draw functions for the PhaseItem type.

For retrieval, the Draw functions are mapped to their respective TypeIds.

Fields

draw_functions: Vec<Box<dyn Draw<P>>>

indices: HashMap<TypeId, DrawFunctionId, NoOpTypeIdHash>

Implementations

impl<P> DrawFunctionsInternal<P>

where P: PhaseItem,

pub fn prepare(&mut self, world: &World)

Prepares all draw function. This is called once and only once before the phase begins.

pub fn add<T>(&mut self, draw_function: T) -> DrawFunctionId

where T: Draw<P>,

Adds the Draw function and maps it to its own type.

pub fn add_with<T, D>(&mut self, draw_function: D) -> DrawFunctionId

where T: 'static, D: Draw<P>,

Adds the Draw function and maps it to the type T

pub fn get_mut( &mut self, id: DrawFunctionId ) -> Option<&mut (dyn Draw<P> + 'static)>

Retrieves the Draw function corresponding to the id mutably.

pub fn get_id<T>(&self) -> Option<DrawFunctionId>

where T: 'static,

Retrieves the id of the Draw function corresponding to their associated type T.

pub fn id<T>(&self) -> DrawFunctionId

where T: 'static,

Retrieves the id of the Draw function corresponding to their associated type T.

Fallible wrapper for Self::get_id()

Panics

If the id doesn’t exist, this function will panic.