Struct gate::AppContext

pub struct AppContext<A: AppAssetId> {
    pub audio: Audio<A>,
    // some fields omitted
}

Context passed to methods in App.

Fields

audio: Audio<A>

Audio playback.

Methods

impl<A: AppAssetId> AppContext<A>

pub fn dims(&self) -> (f64, f64)

Returns the app (width, height), which are restricted by the min/max dimensions specified in AppInfo.

pub fn cursor(&self) -> (f64, f64)

Returns the mouse cursor (x, y) position in app coordinates.

The x coordinate lies in the range 0 to self.dims().0. The y coordinate lies in the range 0 to self.dims().1.

pub fn native_px(&self) -> f64

Returns the width of a native pixel, measured in "app pixels".

This value will always be at most 1.

pub fn native_px_align(&self, x: f64, y: f64) -> (f64, f64)

Convenience method for aligning an (x, y) position to the nearest native pixel boundaries.

This is typically used to align a camera position. See also self.native_px().

pub fn close(&mut self)

Closes the app entirely.

When compiling to wasm32-unknown-unknown, the app may be resumed after it is closed via invoking a JavaScript method.