Struct amethyst::ecs::world::Generation

pub struct Generation(_);

Index generation. When a new entity is placed at an old index, it bumps the Generation by 1. This allows to avoid using components from the entities that were deleted.

Methods

impl Generation

pub fn id(&self) -> i32

Returns the id of the generation.

pub fn is_alive(&self) -> bool

Returns true if entities of this Generation are alive.

Trait Implementations

impl PartialOrd<Generation> for Generation

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialEq<Generation> for Generation

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Clone for Generation

fn clone(&self) -> Generation

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Ord for Generation

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

impl Hash for Generation

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Copy for Generation

impl Eq for Generation

impl Debug for Generation

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

Formats the value using the given formatter.