Enum SystemStage 

pub enum SystemStage {
    Startup,
    Ready,
    AssetSync,
    PreUpdate,
    Update,
    PostUpdate,
    PreRender,
    Render,
    PostRender,
}

When a system runs, each tick. Stages run in the order listed here.

Variants

Startup

Once, before anything else — no GPU backend yet, pure CPU setup.

Ready

Once, automatically, the first tick the GPU backend is ready. For one-time setup that needs Backend/Assets<T> — a plain Read<Backend> here is always safe, no Option guard needed.

AssetSync

Uploads CPU-side assets to the GPU, retrying until dependencies are met.

PreUpdate

Before main game logic (input, timers, event aging).

Update

Main game logic.

PostUpdate

After main game logic.

PreRender

Acquire the frame.

Render

Issue draw calls.

PostRender

Submit and present.

Trait Implementations

impl Clone for SystemStage

fn clone(&self) -> SystemStage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SystemStage

impl Eq for SystemStage

impl Hash for SystemStage

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SystemStage

fn cmp(&self, other: &SystemStage) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for SystemStage

fn eq(&self, other: &SystemStage) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for SystemStage

fn partial_cmp(&self, other: &SystemStage) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for SystemStage