Struct ScreenStack 

pub struct ScreenStack {
    pub layers: BTreeMap<AssetId, i32>,
    pub pauses_world: bool,
    pub captures_input: bool,
}

The active screen stack, published by UiInputSystem at init and whenever the stack changes, and read a frame later (the same one-frame lag screen visibility flips already have). layers maps each active Screen’s id to its computed draw layer (authored layer band + stack position; screen-less HUD elements sit at 0); the overlay build spreads these onto the elements each screen owns. pauses_world is true while any active screen pauses the world; captures_input is true while any active screen captures input (gameplay keys are suppressed even when the world keeps simulating). Absent / empty in a world with no active screen.

Fields

layers: BTreeMap<AssetId, i32>

Each active screen’s computed draw layer, keyed by screen id.

pauses_world: bool

true while any active screen pauses the world.

captures_input: bool

true while any active screen captures input.

Trait Implementations

impl Clone for ScreenStack

fn clone(&self) -> ScreenStack

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScreenStack

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

Formats the value using the given formatter.

impl Default for ScreenStack

fn default() -> ScreenStack

Returns the “default value” for a type.