Struct game::app::App

pub struct App {
    pub primary: PerMap,
    pub secondary: Option<PerMap>,
    pub cs: ColorScheme,
    pub opts: Options,
    pub per_obj: PerObjectActions,
    pub session: SessionState,
}

The top-level data that lasts through the entire game, no matter what state the game is in.

Fields

primary: PerMap

secondary: Option<PerMap>

This is only used right now for a debug mode to compare two versions of the same map. In the future, it might be used for some kind of live “side-by-side” comparison.

cs: ColorScheme

opts: Options

per_obj: PerObjectActions

session: SessionState

Static data that lasts the entire session. Use sparingly.

Implementations

impl App

pub fn has_prebaked(&self) -> Option<(&MapName, &String)>

pub fn prebaked(&self) -> &Analytics

pub fn set_prebaked(&mut self, prebaked: Option<(MapName, String, Analytics)>)

pub fn draw(
    &self,
    g: &mut GfxCtx<'_>,
    opts: DrawOptions,
    show_objs: &dyn ShowObject
)

pub fn recalculate_current_selection(&mut self, ctx: &EventCtx<'_>)

Assumes some defaults.

pub fn mouseover_unzoomed_roads_and_intersections(
    &self,
    ctx: &EventCtx<'_>
) -> Option<ID>

pub fn mouseover_unzoomed_intersections(&self, ctx: &EventCtx<'_>) -> Option<ID>

pub fn mouseover_unzoomed_buildings(&self, ctx: &EventCtx<'_>) -> Option<ID>

pub fn mouseover_unzoomed_everything(&self, ctx: &EventCtx<'_>) -> Option<ID>

pub fn mouseover_debug_mode(
    &self,
    ctx: &EventCtx<'_>,
    show_objs: &dyn ShowObject
) -> Option<ID>

fn calculate_current_selection(
    &self,
    ctx: &EventCtx<'_>,
    show_objs: &dyn ShowObject,
    debug_mode: bool,
    unzoomed_roads_and_intersections: bool,
    unzoomed_buildings: bool
) -> Option<ID>

fn get_renderables_back_to_front<'a>(
    &'a self,
    bounds: Bounds,
    prerender: &Prerender,
    agents: &'a mut AgentCache,
    show_objs: &dyn ShowObject
) -> Vec<&'a (dyn Renderable + 'a)>

pub fn clear_everything(&mut self, ctx: &mut EventCtx<'_>)

Ensure the map edits are blank, reset the simulation, and blank out prebaked results.

impl App

pub fn click_on_intersection<S: Into<String>>(
    &mut self,
    ctx: &mut EventCtx<'_>,
    label: S
) -> Option<IntersectionID>

If an intersection was clicked, return its ID.

Trait Implementations

impl AppLike for App

fn map(&self) -> &Map

fn sim(&self) -> &Sim

fn cs(&self) -> &ColorScheme

fn mut_cs(&mut self) -> &mut ColorScheme

fn draw_map(&self) -> &DrawMap

fn mut_draw_map(&mut self) -> &mut DrawMap

fn opts(&self) -> &Options

fn mut_opts(&mut self) -> &mut Options

fn map_switched(
    &mut self,
    ctx: &mut EventCtx<'_>,
    map: Map,
    timer: &mut Timer<'_>
)

fn draw_with_opts(&self, g: &mut GfxCtx<'_>, opts: DrawOptions)

fn make_warper(
    &mut self,
    ctx: &EventCtx<'_>,
    pt: Pt2D,
    target_cam_zoom: Option<f64>,
    id: Option<ID>
) -> Box<dyn State<App>>

Create a widgetry::State that warps to the given point.

fn sim_time(&self) -> Time

fn current_stage_and_remaining_time(
    &self,
    id: IntersectionID
) -> (usize, Duration)

fn change_color_scheme(
    &mut self,
    ctx: &mut EventCtx<'_>,
    cs: ColorSchemeChoice
) -> bool

Change the color scheme. Idempotent. Return true if there was a change.

impl MinimapControls<App> for MinimapController

fn has_zorder(&self, app: &App) -> bool

Should the user be able to control the z-order visible? The control is only present when zoomed in, placed beneath the zoom column.

fn has_layer(&self, app: &App) -> bool

Is there some additional layer displayed on the minimap? If this changes, the panel gets recalculated.

fn draw_extra(&self, g: &mut GfxCtx<'_>, app: &App)

Draw extra stuff on the minimap, just pulling from the app.

fn make_unzoomed_panel(&self, ctx: &mut EventCtx<'_>, app: &App) -> Panel

When unzoomed, display this panel. By default, no controls when unzoomed.

fn make_legend(&self, ctx: &mut EventCtx<'_>, app: &App) -> Widget

A row beneath the minimap in the zoomed view, usually used as a legend for things on the minimap.

fn make_zoomed_side_panel(&self, ctx: &mut EventCtx<'_>, app: &App) -> Widget

Controls to be placed to the left to the zoomed-in panel

fn panel_clicked(
    &self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    action: &str
) -> Option<Transition<App>>

If a button is clicked that was produced by some method in this trait, respond to it here.

fn panel_changed(&self, _: &mut EventCtx<'_>, app: &mut App, panel: &Panel)

Called for Outcome::Changed on the panel.

impl SharedAppState for App

fn before_event(&mut self)

Before State::event is called, call this.

fn draw_default(&self, g: &mut GfxCtx<'_>)

When DrawBaselayer::DefaultDraw is called, run this.

fn dump_before_abort(&self, canvas: &Canvas)

Will be called if State::event or State::draw panics.

fn before_quit(&self, canvas: &Canvas)

Called before a normal exit, like window close

fn free_memory(&mut self)

If widgetry determines the video card is low on memory, this may be called. The application should make its best effort to delete any unused Drawables.

impl SimpleState<App> for UberTurnPicker

fn on_click(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn on_mouseover(&mut self, ctx: &mut EventCtx<'_>, app: &mut App)

Called when the mouse has moved.

fn other_event(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App
) -> Transition<App>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for UberTurnViewer

fn on_click(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn panel_changed(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    panel: &mut Panel
) -> Option<Transition<App>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn other_event(
    &mut self,
    ctx: &mut EventCtx<'_>,
    _: &mut App
) -> Transition<App>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw_baselayer(&self) -> DrawBaselayer

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn on_mouseover(&mut self, &mut EventCtx<'_>, &mut A)

Called when the mouse has moved.

impl SimpleState<App> for RenameEdits

fn on_click(
    &mut self,
    _: &mut EventCtx<'_>,
    _: &mut App,
    x: &str,
    panel: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn panel_changed(
    &mut self,
    ctx: &mut EventCtx<'_>,
    _: &mut App,
    panel: &mut Panel
) -> Option<Transition<App>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn on_mouseover(&mut self, &mut EventCtx<'_>, &mut A)

Called when the mouse has moved.

fn other_event(&mut self, &mut EventCtx<'_>, &mut A) -> Transition<A>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for About

fn on_click(
    &mut self,
    _: &mut EventCtx<'_>,
    _: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn on_mouseover(&mut self, &mut EventCtx<'_>, &mut A)

Called when the mouse has moved.

fn other_event(&mut self, &mut EventCtx<'_>, &mut A) -> Transition<A>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for StopSignEditor

fn on_click(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn on_mouseover(&mut self, ctx: &mut EventCtx<'_>, _: &mut App)

Called when the mouse has moved.

fn other_event(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App
) -> Transition<App>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for ChangeDuration

fn on_click(
    &mut self,
    _: &mut EventCtx<'_>,
    _: &mut App,
    x: &str,
    panel: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn panel_changed(
    &mut self,
    ctx: &mut EventCtx<'_>,
    _: &mut App,
    panel: &mut Panel
) -> Option<Transition<App>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn other_event(
    &mut self,
    ctx: &mut EventCtx<'_>,
    _: &mut App
) -> Transition<App>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw_baselayer(&self) -> DrawBaselayer

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn on_mouseover(&mut self, &mut EventCtx<'_>, &mut A)

Called when the mouse has moved.

fn draw(&self, &mut GfxCtx<'_>, &A)

impl SimpleState<App> for ShowAbsolute

fn on_click(
    &mut self,
    _: &mut EventCtx<'_>,
    _: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn on_mouseover(&mut self, ctx: &mut EventCtx<'_>, app: &mut App)

Called when the mouse has moved.

fn other_event(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App
) -> Transition<App>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for ShowRelative

fn on_click(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn on_mouseover(&mut self, ctx: &mut EventCtx<'_>, app: &mut App)

Called when the mouse has moved.

fn other_event(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App
) -> Transition<App>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for TuneRelative

fn on_click(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    x: &str,
    panel: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn other_event(
    &mut self,
    ctx: &mut EventCtx<'_>,
    _: &mut App
) -> Transition<App>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn on_mouseover(&mut self, &mut EventCtx<'_>, &mut A)

Called when the mouse has moved.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for About

fn on_click(
    &mut self,
    _: &mut EventCtx<'_>,
    _: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn on_mouseover(&mut self, &mut EventCtx<'_>, &mut A)

Called when the mouse has moved.

fn other_event(&mut self, &mut EventCtx<'_>, &mut A) -> Transition<A>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for ChangeScenario

fn on_click(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn on_mouseover(&mut self, &mut EventCtx<'_>, &mut A)

Called when the mouse has moved.

fn other_event(&mut self, &mut EventCtx<'_>, &mut A) -> Transition<A>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw_baselayer(&self) -> DrawBaselayer

impl SimpleState<App> for DepartureSummary

fn on_click(
    &mut self,
    ctx: &mut EventCtx<'_>,
    app: &mut App,
    x: &str,
    _: &Panel
) -> Transition<App>

Called when something on the panel has been clicked. Since the action is just a string, the fallback case can just use unreachable!().

fn on_click_custom(
    &mut self,
    _ctx: &mut EventCtx<'_>,
    _app: &mut A,
    _action: Box<dyn CloneableAny + 'static, Global>,
    _panel: &Panel
) -> Transition<A>

Called when something on the panel has been clicked.

fn panel_changed(
    &mut self,
    &mut EventCtx<'_>,
    &mut A,
    &mut Panel
) -> Option<Transition<A>>

Called when something on the panel has changed. If a transition is returned, stop handling the event and immediately apply the transition.

fn on_mouseover(&mut self, &mut EventCtx<'_>, &mut A)

Called when the mouse has moved.

fn other_event(&mut self, &mut EventCtx<'_>, &mut A) -> Transition<A>

If a panel on_click event didn’t occur and panel_changed didn’t return transition, then call this to handle all other events.

fn draw(&self, &mut GfxCtx<'_>, &A)

fn draw_baselayer(&self) -> DrawBaselayer

impl State<App> for CutscenePlayer

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ShowMessage

fn event(&mut self, ctx: &mut EventCtx<'_>, _: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for AllRoutesExplorer

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for PathCostDebugger

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for BulkSelect

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for DebugMode

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ScreenshotTest

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, _: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for CollisionsViewer

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for PopularDestinations

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ViewKML

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for PolygonEditor

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ScenarioManager

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ChallengesPicker

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for StoryMapEditor

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for DevToolsMode

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for SelectSegments

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

Draw

fn on_destroy(&mut self, ctx: &mut EventCtx<'_>, _: &mut App)

Before this state is popped or replaced, call this.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

impl State<App> for RoadEditor

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for RouteEditor

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for SignalPicker

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for PreviewTrafficSignal

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for TrafficSignalEditor

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ZoneEditor

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for EditMode

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for Warping

fn event(&mut self, ctx: &mut EventCtx<'_>, _: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, _: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for SaveEdits

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for LoadEdits

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ConfirmDiscard

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for PickLayer

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for Proposals

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for TitleScreen

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for MainMenu

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for About

fn event(&mut self, ctx: &mut EventCtx<'_>, _: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for CommuterPatterns

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ActiveTraffic

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for DebugWarp

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for TransitRoutes

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ModeShift

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ParkingOverhead

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for RiskSummaries

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for RectangularSelector

fn event(&mut self, ctx: &mut EventCtx<'_>, _: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for TrafficSignalDemand

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for TravelTimes

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, _app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for TripTable

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for AgentSpawner

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for EditScenarioModifiers

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for Viewer

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ChangeMode

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for FinalScore

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for TrafficRecorder

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for JumpToTime

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for TimeWarpScreen

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, _: &mut EventCtx<'_>, app: &mut App)

Before this state is popped or replaced, call this.

impl State<App> for SandboxMode

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn on_destroy(&mut self, _: &mut EventCtx<'_>, app: &mut App)

Before this state is popped or replaced, call this.

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

impl State<App> for BackToMainMenu

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, _: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for SandboxLoader

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, _: &mut GfxCtx<'_>, _: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ExploreMap

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for ShowGaps

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for Floodfiller

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for QuickSketch

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for RoutePlanner

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for PathCounter

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for PolygonDebugger

fn event(&mut self, ctx: &mut EventCtx<'_>, _: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.

impl State<App> for RouteExplorer

fn event(&mut self, ctx: &mut EventCtx<'_>, app: &mut App) -> Transition<App>

Respond to a UI event, such as input or time passing.

fn draw(&self, g: &mut GfxCtx<'_>, app: &App)

Draw

fn draw_baselayer(&self) -> DrawBaselayer

Specifies what to draw before draw()

fn on_destroy(&mut self, &mut EventCtx<'_>, &mut A)

Before this state is popped or replaced, call this.