Struct surf_n_term::common::Rnd

pub struct Rnd { /* private fields */ }

Simple random number generator

Implemented as linear congruential generator LCG. Used here instead of pooling in rand crate to reduce dependencies. Formula: X(n) = ((X(n - 1) * a + c) % m) / d a = 214_013 c = 2_531_011 m = 2 ^ 31 d = 2 ^ 16 This formula produces 16-bit random number.

Implementations

impl Rnd

pub fn new() -> Self

Create new random number generator with seed 0

pub fn with_seed(seed: u32) -> Self

Create new random number generator with provided seed value

pub fn next_u32(&mut self) -> u32

Generate random u32 value

pub fn next_u8x4(&mut self) -> [u8; 4]

pub fn next_u64(&mut self) -> u64

Generate random u64 value

Trait Implementations

impl Default for Rnd

fn default() -> Self

Returns the “default value” for a type.