Struct bones_lib::prelude::Entity

#[repr(C)]
pub struct Entity(/* private fields */);

An entity index.

They are created using the Entities struct. They are used as indices with Components structs.

Entities are conceptual “things” which possess attributes (Components). As an exemple, a Car (Entity) has a Color (Component), a Position (Component) and a Speed (Component).

Implementations

impl Entity

pub fn new(index: u32, generation: u32) -> Entity

Creates a new Entity from the provided index and generation.

⚠️ Warning: It is not generally recommended to manually create Entitys unless you know exactly what you are doing. This can be useful in certain advanced or unusual use-cases, but usually you should use Entities::create() to spawn entities.

pub fn index(&self) -> u32

Returns the index of this Entity.

In most cases, you do not want to use this directly. However, it can be useful to create caches to improve performances.

pub fn generation(&self) -> u32

Returns the generation of this Entity.

In most cases, you do not want to use this directly. However, it can be useful to create caches to improve performances.

Trait Implementations

impl Clone for Entity

fn clone(&self) -> Entity

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Entity

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

Formats the value using the given formatter.

impl Default for Entity

fn default() -> Entity

Returns the “default value” for a type.

impl HasSchema for Entity

fn schema() -> &'static Schema

Get this type’s [Schema].

fn register_schema()

Register this schema with the global schema registry.

fn cast<T>(this: &Self) -> &T

where T: HasSchema,

Cast a reference of this type to a reference of another type with the same memory layout.

fn try_cast<T>(this: &Self) -> Result<&T, SchemaMismatchError>

where T: HasSchema,

Cast a reference of this type to a reference of another type with the same memory layout.

fn cast_mut<T>(this: &mut Self) -> &mut T

where T: HasSchema,

Cast a mutable reference of this type to a reference of another type with the same memory layout.

fn try_cast_mut<T>(this: &mut Self) -> Result<&mut T, SchemaMismatchError>

where T: HasSchema,

Cast a mutable reference of this type to a reference of another type with the same memory layout.

fn as_schema_ref(&self) -> SchemaRef<'_>

where Self: Sized,

Converts a reference of T to a SchemaRef

fn as_schema_mut(&mut self) -> SchemaRefMut<'_>

where Self: Sized,

Converts a reference of T to a SchemaRefMut

impl Hash for Entity

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Entity

fn cmp(&self, other: &Entity) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Entity

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

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

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

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

impl PartialOrd for Entity

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

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

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

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

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

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

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

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

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

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

impl Copy for Entity

impl Eq for Entity

impl StructuralPartialEq for Entity