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use winit::platform::web::EventLoopExtWebSys;
pub mod utils;
pub mod ui;
pub mod request;
pub mod context;
pub mod state;
pub mod framebuffer;
pub mod shader;
pub mod mesh;
pub mod texture;
pub mod font;
pub mod audio;
pub mod shadow;
pub mod module;
static mut CTX: Option<*const context::Context> = None;
static mut ST: Option<*mut state::State> = None;
static mut G: Option<*mut std::ffi::c_void> = None;
pub fn contextualize<F, G>(mut f: F)
where
G: state::Game + 'static,
F: FnMut(&context::Context, &mut state::State, &mut G) {
unsafe {
match (CTX, ST, G) {
(Some(c), Some(s), Some(g)) => f(&*c, &mut*s, &mut*(g as *mut G)),
_ => log::info!("context not set"),
}
}
}
pub async fn run<'a, F, G, Fut>(gnew: F)
where
Fut: std::future::Future<Output = G>,
G: state::Game + 'static,
F: (Fn(&'a context::Context) -> Fut),
{
console_log::init_with_level(log::Level::Debug).unwrap();
console_error_panic_hook::set_once();
tracing_wasm::set_as_global_default();
log::info!("hello computer, starting up...");
let event_loop = winit::event_loop::EventLoop::new()
.expect("failed to initialize event loop");
let window = winit::window::WindowBuilder::new()
.with_maximized(true)
.with_decorations(false)
.build(&event_loop)
.expect("failed to initialize window");
let ctx = Box::leak(Box::new(context::Context::new(window)));
ctx.maximize_canvas();
let game = Box::leak(Box::new(gnew(ctx).await));
let st = Box::leak(Box::new(state::State::new(&ctx)));
// request = Some(Box::new(async {
// "foo".to_owned()
// }));
unsafe {
CTX = Some(ctx as _);
ST = Some(st as _);
G = Some(game as *mut G as *mut std::ffi::c_void);
}
event_loop.set_control_flow(winit::event_loop::ControlFlow::Wait);
event_loop.spawn(|event, elwt| {
contextualize(|ctx, st, game: &mut G| {
match &event {
winit::event::Event::WindowEvent {
event: wev,
window_id,
..
} => match wev {
winit::event::WindowEvent::CloseRequested
if *window_id == ctx.window.id() => elwt.exit(),
winit::event::WindowEvent::Resized{..} => {
ctx.maximize_canvas();
st.handle_resize(&ctx);
},
winit::event::WindowEvent::Focused(false) => {
st.keys = state::Keys::new();
},
winit::event::WindowEvent::CursorMoved { position, ..} => {
st.mouse_moved(&ctx, position.x as f32, position.y as f32, game);
},
winit::event::WindowEvent::MouseInput {
button,
state,
..
} => match state {
winit::event::ElementState::Pressed => {
st.mouse_pressed(&ctx, *button, game)
},
winit::event::ElementState::Released => {
st.mouse_released(&ctx, *button)
},
}
winit::event::WindowEvent::KeyboardInput {
event: winit::event::KeyEvent {
physical_key: winit::keyboard::PhysicalKey::Code(key),
state,
repeat: false,
..
},
..
} => match state {
winit::event::ElementState::Pressed => {
st.key_pressed(&ctx, *key)
},
winit::event::ElementState::Released => {
st.key_released(&ctx, *key)
},
}
_ => {},
},
winit::event::Event::AboutToWait => {
if ctx.resize_necessary() {
ctx.maximize_canvas();
st.handle_resize(&ctx);
}
if let Some(f) = &mut st.request {
match std::future::Future::poll(f.as_mut(), &mut st.waker_ctx) {
std::task::Poll::Pending => {},
std::task::Poll::Ready(res) => {
st.request_returned(&ctx, game, res);
},
}
// f.poll();
}
st.run_update(&ctx, game);
st.run_render(&ctx, game);
ctx.window.request_redraw();
},
_ => {},
}
});
});
}
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