Struct SimRng 

pub struct SimRng { /* private fields */ }

The seeded simulation RNG, kept in the game’s state.

Implementations

impl SimRng

pub fn new(seed: u64) -> Self

A generator seeded with seed.

pub fn next_u32(&mut self) -> u32

The next 32 random bits.

pub fn roll_percent(&mut self) -> u8

A uniform integer in 0..=99. Rejection sampling: draws that would make low values more likely (the top 2^32 mod 100 values) are thrown away and redrawn, at most 16 times. Each draw is rejected with chance 96 / 2^32, so the cap is never reached in practice; it only guarantees the loop ends.

pub fn roll_below(&mut self, n: u32) -> u32

A uniform integer in 0..n (0 when n is 0). Rejection sampling as in Self::roll_percent: draws at or above the largest multiple of n that fits in 2^32 are redrawn, at most 16 times.

Trait Implementations

impl Clone for SimRng

fn clone(&self) -> SimRng

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SimRng

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SimRng

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for SimRng

impl Hash for SimRng

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl JsonSchema for SimRng

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for SimRng

fn eq(&self, other: &SimRng) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl RandomSource for SimRng

fn roll_percent(&mut self) -> u8

A uniform, unbiased integer in 0..=99.

fn roll_below(&mut self, n: u32) -> u32

A uniform, unbiased integer in 0..n. n must be at least 1; 0 gives 0.

impl Serialize for SimRng

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SimRng