lambda/
component.rs

1use std::{
2  fmt::Debug,
3  time::Duration,
4};
5
6use crate::{
7  events::Events,
8  render::{
9    command::RenderCommand,
10    RenderContext,
11  },
12};
13
14/// The Component Interface for allowing Component based data structures
15/// like the ComponentStack to store components with various purposes
16/// and implementations to work together.
17pub trait Component<R, E>
18where
19  R: Sized + Debug,
20  E: Sized + Debug,
21{
22  /// The attach function is called when the component is added to the
23  /// component data storage a runtime is using.
24  fn on_attach(&mut self, render_context: &mut RenderContext) -> Result<R, E>;
25
26  /// The detach function is called when the component is removed from the
27  /// component data storage a runtime is using.
28  fn on_detach(&mut self, render_context: &mut RenderContext) -> Result<R, E>;
29
30  /// The event function is called every time an event is received from
31  /// the windowing system/event loop.
32  fn on_event(&mut self, event: Events) -> Result<R, E>;
33
34  /// The update function is called every frame and is used to update
35  /// the state of the component.
36  fn on_update(&mut self, last_frame: &Duration) -> Result<R, E>;
37
38  /// Render commands returned from this function will be executed
39  /// by the renderer immediately.
40  fn on_render(
41    &mut self,
42    render_context: &mut RenderContext,
43  ) -> Vec<RenderCommand>;
44}
lambda/component.rs

lambda/
component.rs
