Get random enum rust

Your own enum

Like most abstractions in Rust, random value generation is powered by traits. Implementing a trait is the same for any particular type, the only difference is exactly what the methods and types of the trait are.
Rand 0.5, 0.6, 0.7, and 0.8

Implement Distribution using your enum as the type parameter. You also need to choose a specific type of distribution; Standard is a good default choice. Then use any of the methods to generate a value, such as rand::random:

use rand::{
    distributions::{Distribution, Standard},
    Rng,
}; // 0.8.0

#[derive(Debug)]
enum Spinner {
    One,
    Two,
    Three,
}

impl Distribution<Spinner> for Standard {
    fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> Spinner {
        // match rng.gen_range(0, 3) { // rand 0.5, 0.6, 0.7
        match rng.gen_range(0..=2) { // rand 0.8
            0 => Spinner::One,
            1 => Spinner::Two,
            _ => Spinner::Three,
        }
    }
}

fn main() {
    let spinner: Spinner = rand::random();
    println!("{:?}", spinner);
}

Source: stackoverflow.com

Similar codes

1 vote287 views1 answer
Bevy window descriptor
Rust
0 vote332 views1 answer
Encode base64 rust
Rust
0 vote279 views1 answer
Rust char to string
Rust
5 votes346 views2 answers
Rust concatenate strings
Rust
0 vote284 views1 answer
Count matches with regex
Rust
1 vote277 views2 answers
Rust string from bytes
Rust
0 vote280 views2 answers
Rust initialize empty array
Rust
0 vote268 views1 answer
Rust match enum
Rust
0 vote257 views1 answer
Rust match wildcard
Rust
0 vote286 views1 answer
Rust tuple vs vec
Rust