Trait n18ui::state::UiState

pub trait UiState {
    fn draw(&self, assets: &Assets, ctx: &Context);

    fn ping(
        &mut self, 
        _assets: &mut Assets, 
        _controller: &mut Controller
    ) -> (UiResponse, Option<State>) { ... }
}

The methods that are required in order to manipulate the user interface.

Required methods

fn draw(&self, assets: &Assets, ctx: &Context)

Draws the current state of the map.

Note that this method should not draw a background by filling the entire surface, because this makes it impossible to determine the appropriate surface dimensions.

Provided methods

fn ping(
    &mut self,
    _assets: &mut Assets,
    _controller: &mut Controller
) -> (UiResponse, Option<State>)

Trait Implementations

impl AsMut<dyn UiState + 'static> for State

fn as_mut(&mut self) -> &mut (dyn UiState + 'static)

Performs the conversion.

impl AsRef<dyn UiState + 'static> for State

Note the 'static lifetime in the return type, which is necessary for this to compile. See this thread on the Rust forum, and how static lifetimes apply to trait bounds:

As a trait bound, it means the type does not contain any non-static references. E.g., the receiver can hold on to the type for as long as they want and it will never become invalid until they drop it.

fn as_ref(&self) -> &(dyn UiState + 'static)

Performs the conversion.

Implementors

impl UiState for Default

impl UiState for EditTokens

impl UiState for ReplaceTile

impl UiState for Found

impl UiState for Search

impl UiState for SelectCompany

impl UiState for SelectTrains

impl UiState for Start