rust-zine/cool-game/src/main.rs

use macroquad::prelude::*;

#[macroquad::main("cool game")]
async fn main() {
    let mut game = Game::new();
    loop {
        if is_key_down(KeyCode::Escape) {
            break;
        }
        game.draw();
        game.update();
        next_frame().await;
    }
}

struct Game {
    player: Rect,
}

impl Game {
    fn new() -> Self {
        Self {
            player: Rect::new(50.0, 50.0, 25.0, 25.0),
        }
    }

    fn update(&mut self) {
        if is_key_down(KeyCode::Up) {
            self.player.y -= 1.0;
        }
        if is_key_down(KeyCode::Down) {
            self.player.y += 1.0;
        }
        if is_key_down(KeyCode::Right) {
            self.player.x += 1.0;
        }
        if is_key_down(KeyCode::Left) {
            self.player.x -= 1.0;
        }
    }

    fn draw(&self) {
        clear_background(DARKBLUE);

        draw_rectangle(
            self.player.x,
            self.player.y,
            self.player.w,
            self.player.h,
            PINK,
        );
    }
}