use glutin::{

    dpi::LogicalSize,

    Event,

    WindowEvent,

    EventsLoop,

    GlWindow,

    GlContext

};

use gfx::{

    texture,

    format,

    Encoder

};

use gfx_window_glutin::init_existing;

fn init(event_loop: &EventsLoop, size: LogicalSize) -> GlWindow {

    use glutin::{

        ContextBuilder,

        WindowBuilder

    };

    let window = WindowBuilder::new()

        .with_title("hwengine")

        .with_dimensions(size);

    let context = ContextBuilder::new();

    GlWindow::new(window, context, event_loop).unwrap()

}

fn main() {

    let mut event_loop = EventsLoop::new();

    let window = init(&event_loop, LogicalSize::new(1024.0, 768.0));

    let (mut device, mut factory, color_view, depth_view) =

        init_existing::<format::Rgba8, format::Depth>(&window);

    let mut encoder: Encoder<_, _> = factory.create_command_buffer().into();

    let engine = EngineInstance::new();

    let mut is_running = true;

    while is_running {

        event_loop.poll_events(|event| {

            match event {

                Event::WindowEvent { event, ..} => match event {

                    WindowEvent::CloseRequested => {

                        is_running = false;

                    },

                    _ => ()

                },

                _ => ()

            }

        });

        encoder.clear(&color_view, [0.5, 0.0, 0.0, 1.0]);

        engine.render(&mut encoder, &color_view);

        encoder.flush(&mut device);

        window.swap_buffers().unwrap();

    }

}