Struct LayerId 

pub struct LayerId(/* private fields */);

A globally unique, opaque identifier for a map layer.

Identifiers are assigned via LayerId::next() using a lock-free atomic counter and are guaranteed unique within the lifetime of the process. They are not stable across process restarts and should not be serialized.

use rustial_engine::LayerId;

let a = LayerId::next();
let b = LayerId::next();
assert_ne!(a, b);

Implementations

impl LayerId

pub fn next() -> Self

Allocate the next unique layer identifier.

This is a lock-free operation (Relaxed ordering is sufficient because uniqueness only requires that no two calls return the same value; there is no happens-before dependency on the counter itself).

pub fn as_u64(self) -> u64

Return the raw u64 value (useful for logging / diagnostics).

Trait Implementations

impl Clone for LayerId

fn clone(&self) -> LayerId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayerId

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

Formats the value using the given formatter.

impl Display for LayerId

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

Formats the value using the given formatter.

impl Hash for LayerId

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 Ord for LayerId

fn cmp(&self, other: &LayerId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for LayerId

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for LayerId

fn partial_cmp(&self, other: &LayerId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for LayerId

impl Eq for LayerId

impl StructuralPartialEq for LayerId