Struct BodyId 

pub struct BodyId { /* private fields */ }

A stable generational handle to a Body within a crate::World. 指向 crate::World 中某个 Body 的稳定代际句柄。

It becomes permanently invalid once that Body is removed: the slot’s generation advances, so a stale handle is rejected rather than silently addressing whatever Body reuses the slot. 该 Body 被移除后此句柄永久失效：槽位的代际会递增，因此过期句柄会被拒绝，而不会静默 地指向复用该槽位的另一个 Body。

Implementations

impl BodyId

pub const fn index(self) -> u32

The slot this handle addresses within its World. 此句柄在其 World 中寻址的槽位。

pub const fn generation(self) -> u32

The slot generation this handle was minted against. 铸造此句柄时所对应的槽位代际。

Trait Implementations

impl Clone for BodyId

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BodyId

impl Debug for BodyId

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

Formats the value using the given formatter.

impl Eq for BodyId

impl Hash for BodyId

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 BodyId

fn cmp(&self, other: &Self) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for BodyId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for BodyId

fn partial_cmp(&self, other: &Self) -> 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 StructuralPartialEq for BodyId