extern crate macroquad;

mod ant;
mod constants;
mod food;

use crate::ant::Ant;
use constants::{MAP_HEIGHT, MAP_WIDTH};
use macroquad::prelude::*;

fn window_conf() -> Conf {
    Conf {
        window_title: "Ants".to_string(),
        fullscreen: false,
        window_width: MAP_WIDTH as i32,
        window_height: MAP_HEIGHT as i32,
        ..Default::default()
    }
}

trait Drawable {
    fn draw(&self);
}

#[macroquad::main(window_conf)]
async fn main() {
    //let map = load_texture("map_scaled.png").await.unwrap();
    let mut trail_map = Image::gen_image_color(MAP_WIDTH as u16, MAP_HEIGHT as u16, BLACK);
    let mut ants = Ant::init(1024);

    loop {
        // fade trails (doesnt really work)
        let frame_time = get_frame_time();
        for x in 0..MAP_WIDTH {
            for y in 0..MAP_HEIGHT {
                let mut current_pixel = trail_map.get_pixel(x, y);
                current_pixel.r -= 0.1 * frame_time;
                current_pixel.g -= 0.1 * frame_time;
                current_pixel.b -= 0.1 * frame_time;
                trail_map.set_pixel(x, y, current_pixel);
            }
        }
        // actions
        ants.iter_mut()
            .for_each(|ant| ant.walk(frame_time, &mut trail_map));
        if is_key_down(KeyCode::Escape) || is_quit_requested() {
            return;
        }
        if is_mouse_button_down(MouseButton::Left) {
            let mouse = mouse_position();
            dbg!(&mouse);
            //food.push(Food::new(Vec2::new(mouse.0, mouse.1)));
        }

        // render
        clear_background(BLACK);
        let texture = Texture2D::from_image(&trail_map);
        draw_texture(texture, 0., 0., WHITE);
        ants.iter().for_each(|ant| ant.draw());

        next_frame().await
    }
}