use sdl2::{

    keyboard::Scancode,

    event::EventType

};

use rand::{

    thread_rng, RngCore

};

use landgen::{

    LandGenerator,

    LandGenerationParameters

};

use land2d::Land2D;

use lfprng::LaggedFibonacciPRNG;

struct LandSource<T> {

    rnd: LaggedFibonacciPRNG,

    generator: T

}

impl <T: LandGenerator> LandSource<T> {

    fn new(generator: T) -> Self {

        let mut init = [0u8; 64];

        thread_rng().fill_bytes(&mut init);

        LandSource {

            rnd: LaggedFibonacciPRNG::new(&init),

            generator

        }

    }

    fn next(&mut self, parameters: LandGenerationParameters<u32>) -> Land2D<u32> {

        self.generator.generate_land(parameters, &mut self.rnd)

    }

}

fn main() {

    let sdl = sdl2::init().unwrap();

    let _image = sdl2::image::init(sdl2::image::INIT_PNG).unwrap();

    let events = sdl.event().unwrap();

    let mut pump = sdl.event_pump().unwrap();

    let video = sdl.video().unwrap();

    let _window = video.window("Theme Editor", 640, 480)

        .position_centered()

        .build().unwrap();

    'pool: loop {

        use sdl2::event::Event::*;

        pump.pump_events();

        while let Some(event) = pump.poll_event() {

            match event {

                Quit{ .. } => break 'pool,

                _ => ()

            }

        }    

    }

}