diff --git a/guessing_game_ng/Cargo.toml b/guessing_game_ng/Cargo.toml new file mode 100644 index 0000000..543b487 --- /dev/null +++ b/guessing_game_ng/Cargo.toml @@ -0,0 +1,10 @@ +[package] +name = "guessing_game_ng" +version = "0.1.0" +authors = ["laurens "] +edition = "2018" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +rand = "0.5.5" diff --git a/guessing_game_ng/src/main.rs b/guessing_game_ng/src/main.rs new file mode 100644 index 0000000..9ac24af --- /dev/null +++ b/guessing_game_ng/src/main.rs @@ -0,0 +1,58 @@ +use std::io; +use std::cmp::Ordering; +use rand::Rng; + +const MIN_NUMBER: i32 = 1; +const MAX_NUMBER: i32 = 100; + +pub struct Guess { + value: i32, +} + +impl Guess { + pub fn new(value: i32) -> Guess { + if value < MIN_NUMBER || value > MAX_NUMBER { + panic!("Guess value must be between 1 and 100, got {}.", value); + } + + Guess { value } + } + + pub fn value(&self) -> i32 { + self.value + } +} + +fn main() { + let secret_number = rand::thread_rng().gen_range(MIN_NUMBER, MAX_NUMBER + 1); + + println!("Guess the number between [{}, {}] {}", MIN_NUMBER, MAX_NUMBER, secret_number); + + loop { + let mut guess = String::new(); + println!("Input guess:"); + io::stdin().read_line(&mut guess).expect("Failed to read line"); + + let guess: i32 = match guess.trim().parse() { + Ok(num) => num, + Err(_) => { + println!("That ain't a number!"); + continue; + } + }; + + let guess: Guess = Guess::new(guess); + + println!("You guessed: {}", guess.value); + + match guess.value.cmp(&secret_number) { + Ordering::Less => println!("Too small!"), + Ordering::Greater => println!("Too big!"), + Ordering::Equal => { + println!("Congrats, you did it!"); + break; + } + } + } + +}