bevy/src/app/app.rs
2020-01-19 23:04:27 -08:00

127 lines
3.8 KiB
Rust

use winit::{
event,
event::WindowEvent,
event_loop::{ControlFlow, EventLoop},
};
use legion::prelude::*;
use crate::{core::Time, render, app::AppBuilder, render::render_graph_2::{Renderer, RenderGraph}};
pub struct App {
pub universe: Universe,
pub world: World,
pub legacy_render_graph: Option<render::RenderGraph>,
pub renderer: Option<Box<dyn Renderer>>,
pub render_graph: RenderGraph,
pub schedule: Schedule,
}
impl App {
pub fn new(
universe: Universe,
world: World,
schedule: Schedule,
legacy_render_graph: Option<render::RenderGraph>,
renderer: Option<Box<dyn Renderer>>,
render_graph: RenderGraph,
) -> App {
App {
universe,
world,
schedule,
legacy_render_graph,
renderer,
render_graph,
}
}
pub fn build() -> AppBuilder {
AppBuilder::new()
}
fn update(&mut self) {
if let Some(mut time) = self.world.resources.get_mut::<Time>() {
time.start();
}
self.schedule.execute(&mut self.world);
// TODO: remove me
if let Some(ref mut render_graph) = self.legacy_render_graph {
render_graph.render(&mut self.world);
}
if let Some(ref mut renderer) = self.renderer {
renderer.process_render_graph(&self.render_graph, &mut self.world);
}
if let Some(mut time) = self.world.resources.get_mut::<Time>() {
time.stop();
}
}
fn handle_event(&mut self, _: WindowEvent) {}
pub fn run(mut self) {
env_logger::init();
let event_loop = EventLoop::new();
log::info!("Initializing the window...");
let window = winit::window::Window::new(&event_loop).unwrap();
window.set_title("bevy");
window.set_inner_size(winit::dpi::LogicalSize::new(1280, 720));
self.world.resources.insert(window);
log::info!("Initializing the example...");
if let Some(ref mut render_graph) = self.legacy_render_graph {
render_graph.initialize(&mut self.world);
}
if let Some(ref mut renderer) = self.renderer {
renderer.initialize(&mut self.world);
}
log::info!("Entering render loop...");
event_loop.run(move |event, _, control_flow| {
*control_flow = if cfg!(feature = "metal-auto-capture") {
ControlFlow::Exit
} else {
ControlFlow::Poll
};
match event {
event::Event::WindowEvent {
event: WindowEvent::Resized(size),
..
} => {
if let Some(ref mut render_graph) = self.legacy_render_graph {
render_graph
.resize(size.width, size.height, &mut self.world);
}
}
event::Event::WindowEvent { event, .. } => match event {
WindowEvent::KeyboardInput {
input:
event::KeyboardInput {
virtual_keycode: Some(event::VirtualKeyCode::Escape),
state: event::ElementState::Pressed,
..
},
..
}
| WindowEvent::CloseRequested => {
*control_flow = ControlFlow::Exit;
}
_ => {
self.handle_event(event);
}
},
event::Event::MainEventsCleared => {
self.update();
}
_ => (),
}
});
}
}