ants/src/main.rs

extern crate macroquad;

mod ant;
mod constants;

use crate::ant::Ant;
use constants::*;
use macroquad::color::*;
use macroquad::input::{is_key_down, is_quit_requested, KeyCode};
use macroquad::miniquad::conf::Conf;
use macroquad::prelude::{
    clear_background, draw_texture, get_frame_time, next_frame, Image, Texture2D,
};
use macroquad::text::draw_text;
use macroquad::time::get_fps;

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

#[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(8);

    loop {
        // fade trails (doesnt really work)
        let frame_time = get_frame_time();
        trail_map.bytes.iter_mut().for_each(|b| {
            if *b > 0 {
                *b -= 1;
            }
        });
        // actions
        ants.iter_mut().for_each(|ant| {
            ant.walk(frame_time, &mut trail_map);
            ant.draw(&mut trail_map);
        });
        if is_key_down(KeyCode::Escape) || is_quit_requested() {
            return;
        }

        // render
        clear_background(BLACK);
        let texture = Texture2D::from_image(&trail_map);
        draw_texture(texture, 0., 0., WHITE);
        draw_text(&get_fps().to_string(), 0., 20., 20., WHITE);

        next_frame().await
    }
}