// extern crate piston_window;
// use piston_window::*;

extern crate minifb;
use minifb::{Key, Window, WindowOptions};

mod engine;
use engine::Tile;

const WIDTH: usize = 320;
const HEIGHT: usize = 240;

fn main() {
    let mut buffer: Vec<u32> = vec![0; WIDTH * HEIGHT];

    let mut window = Window::new("Rustenstein", WIDTH, HEIGHT, WindowOptions::default())
        .unwrap_or_else(|e| {
            panic!("{}", e);
        });

    // Limit to max ~60 fps update rate
    window.limit_update_rate(Some(std::time::Duration::from_micros(16600)));

    let (width, height) = window.get_size();
    let mut engine = engine::Engine::new(width, height);

    #[rustfmt::skip]
    let tiles = vec![
        Tile::Wall, Tile::Wall, Tile::Wall, Tile::Wall, Tile::Wall,
        Tile::Wall, Tile::Empty, Tile::Empty, Tile::Empty, Tile::Wall,
        Tile::Wall, Tile::Empty, Tile::Empty, Tile::Empty, Tile::Wall,
        Tile::Wall, Tile::Empty, Tile::Empty, Tile::Empty, Tile::Wall,
        Tile::Wall, Tile::Wall, Tile::Wall, Tile::Wall, Tile::Wall,
    ];
    let level = engine::Level {
        width: 5,
        height: 5,
        tiles,
    };
    engine.load_level(level);

    while window.is_open() && !window.is_key_down(Key::Escape) {
        for i in buffer.iter_mut() {
            *i = 0; // write something more funny here!
        }

        // if let Some(Button::Keyboard(key)) = event.press_args() {
        //     match key {
        //         Key::W | Key::Up => engine.add_movement(engine::Movement::Forward),
        //         Key::S | Key::Down => engine.add_movement(engine::Movement::Backward),
        //         Key::A | Key::Left => engine.add_movement(engine::Movement::TurnLeft),
        //         Key::D | Key::Right => engine.add_movement(engine::Movement::TurnRight),
        //         _ => (),
        //     };
        // };

        engine.render(&mut buffer);

        // if let Some(args) = event.update_args() {
        //     engine.update(args.dt);
        // }

        // We unwrap here as we want this code to exit if it fails.
        // Real applications may want to handle this in a different way
        window.update_with_buffer(&buffer, WIDTH, HEIGHT).unwrap();
    }
}