hangman.rs

use std::io::{stdin, stdout, Write};

fn main() {
    let stdin = stdin();
    let mut stdout = stdout();

    let to_guess = String::from("BENEDICT");

    let mut letters: u128 = 0;

    loop {
        let a = to_guess.chars().map(|x| if x <= 127 as char && letters & (1 << x as u8) > 0 {x} else {'_'}).collect::<String>();
        let a = a.chars().map(|x| x.to_string() + &' '.to_string()).collect::<Vec<String>>().join(" ");
        let a = a.trim_end();

        println!("Current word: {}", a);

        if !a.contains('_') {
            println!("Congratulations!");
            break;
        }

        print!("Enter new letter: ");
        stdout.flush().unwrap();

        let mut letter = String::new();
        stdin.read_line(& mut letter).expect("Invalid letter");

        if letter.trim().len() != 1 {
            println!("Use only one letter");
            continue;
        }

        let letter = letter.to_uppercase().chars().next().unwrap();

        letters = letters | (1 << letter as u8)
    };
}