fax.rs

use std::f64::consts::PI;
fn main() {
    for y in (-25..25).filter(|x| x % 2 == 0) {
        for x in -25..25 {
            let r = ((x * x + y * y) as f64).sqrt() as i32;
            let t = (((y as f64 / x as f64).atan() + PI / 2.0) * PI) - PI / 2.0;
            if r < 25 && r > 12 {
                let diff = 25 - r;
                let line = (if t < 0.0 {
                    1.0 - (-t / PI / 2.0)
                } else {
                    t / (PI / 2.0)
                } * 12.5) as i32;
                if (line - diff).abs() < 2 {
                    print!("\x1b[48;5;231m.\x1b[0m");
                } else {
                    print!("\x20");
                }
            } else if r < 8 {
                print!("\x20");
            } else {
                print!("\x1b[48;5;231m.\x1b[0m");
            }
        }
        println!();
    }
}