FantasyPvP
35 lines
954 B
Rust
35 lines
954 B
Rust
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use alloc::{boxed::Box, string::{String, ToString}, vec::Vec};
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use rand::{Rng, SeedableRng, rngs::SmallRng, RngCore};
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use spin::Mutex;
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use lazy_static::lazy_static;
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lazy_static! {
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pub static ref RANDOM: Mutex<SmallRng> = Mutex::new(SmallRng::seed_from_u64(1));
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}
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pub struct Random;
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impl Random {
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pub fn int(lower: usize, upper: usize) -> usize {
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loop {
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let integer: u64 = RANDOM.lock().next_u64();
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let mut integer: String = integer.to_string();
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integer = "0".repeat(20 - integer.len()) + &integer;
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let integer: usize = integer[1..upper.to_string().len() + 1].parse().unwrap();
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if integer <= upper && integer >= lower {
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return integer;
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} else {
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continue;
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}
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}
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}
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pub fn selection<T: Clone>(ls: Vec<T>) -> T {
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let range = Random::int(0, ls.len() - 1);
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ls[range as usize].clone()
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}
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} |