Yop Yop Yop

Cargo.toml

[package]
name = "yop"
version = "0.1.0"
authors = ["Will Speak <lithiumflame@gmail.com>"]

[dependencies]

[[bin]]
    name = "yop"
    path = "yop.rs"

yop.rs

use std::{thread, time, io};
use std::io::prelude::*;

const CHOICES: [char;4] = [
    '⠸',
    '⠪',
    '⠇',
    '⠕',
];

fn main() {

    let delay = time::Duration::from_millis(500);
    let mut choice = 0;

    while true {
        print!(" {}\r", CHOICES[choice]);
        io::stdout().flush().unwrap();
        thread::sleep(delay);
        choice = (choice + 1) % 4;
    }
}