pub struct UntypedComponentStore { /* private fields */ }
Expand description

Holds components of a given type indexed by Entity.

We do not check if the given entity is alive here, this should be done using Entities.

Implementations§

source§

impl UntypedComponentStore

source

pub fn new(schema: &'static Schema) -> UntypedComponentStore

Create a arbitrary UntypedComponentStore.

In Rust, you will usually not use UntypedComponentStore and will use the statically typed ComponentStore<T> instead.

source

pub fn for_type<T>() -> UntypedComponentStorewhere T: HasSchema,

Create an UntypedComponentStore that is valid for the given type T.

source

pub fn schema(&self) -> &'static Schema

Get the schema of the components stored.

source

pub fn insert_box( &mut self, entity: Entity, data: SchemaBox ) -> Option<SchemaBox>

Insert component data for the given entity and get the previous component data if present.

Panics

Panics if the schema of T doesn’t match the store.

source

pub fn try_insert_box( &mut self, entity: Entity, data: SchemaBox ) -> Result<Option<SchemaBox>, SchemaMismatchError>

Insert component data for the given entity and get the previous component data if present.

Errors

Errors if the schema of T doesn’t match the store.

source

pub fn insert<T>(&mut self, entity: Entity, data: T) -> Option<T>where T: HasSchema,

Insert component data for the given entity and get the previous component data if present.

Panics

Panics if the schema of T doesn’t match the store.

source

pub fn try_insert<T>( &mut self, entity: Entity, data: T ) -> Result<Option<T>, SchemaMismatchError>where T: HasSchema,

Insert component data for the given entity and get the previous component data if present.

Errors

Errors if the schema of T doesn’t match the store.

source

pub unsafe fn insert_raw(&mut self, entity: Entity, data: *mut c_void) -> bool

Returns true if the entity already had a component of this type.

If true is returned, the previous value of the pointer will be written to data.

Safety
  • The data must be a pointer to memory with the same schema.
  • If false is returned you must ensure the data pointer is not used after pushing.
source

pub fn get<T>(&self, entity: Entity) -> Option<&T>where T: HasSchema,

Get a reference to the component storage for the given Entity.

Panics

Panics if the schema of T doesn’t match.

source

pub fn try_get<T>( &self, entity: Entity ) -> Result<Option<&T>, SchemaMismatchError>where T: HasSchema,

Get a reference to the component storage for the given Entity.

Errors

Errors if the schema of T doesn’t match.

source

pub fn get_ref(&self, entity: Entity) -> Option<SchemaRef<'_>>

Get a SchemaRef to the component for the given Entity if the entity has this component.

source

pub fn get_mut<T>(&mut self, entity: Entity) -> Option<&mut T>where T: HasSchema,

Get a mutable reference to the component storage for the given Entity.

Panics

Panics if the schema of T doesn’t match.

source

pub fn try_get_mut<T>( &mut self, entity: Entity ) -> Result<Option<&mut T>, SchemaMismatchError>where T: HasSchema,

Get a mutable reference to the component storage for the given Entity.

Errors

Errors if the schema of T doesn’t match.

source

pub fn get_mut_or_insert<T>( &mut self, entity: Entity, f: impl FnOnce() -> T ) -> &mut Twhere T: HasSchema,

Get a mutable reference to component storage for the given Entity if it exists. Otherwise inserts T generated by calling parameter: f.

source

pub fn get_ref_mut<'a>(&mut self, entity: Entity) -> Option<SchemaRefMut<'a>>

Get a SchemaRefMut to the component for the given Entity

source

pub fn get_many_mut<const N: usize, T>( &mut self, entities: [Entity; N] ) -> [Option<&mut T>; N]where T: HasSchema,

Get mutable references s to the component data for multiple entities at the same time.

Panics

This will panic if the same entity is specified multiple times. This is invalid because it would mean you would have two mutable references to the same component data at the same time.

This will also panic if there is a schema mismatch.

source

pub fn try_get_many_mut<const N: usize, T>( &mut self, entities: [Entity; N] ) -> Result<[Option<&mut T>; N], SchemaMismatchError>where T: HasSchema,

Get mutable references s to the component data for multiple entities at the same time.

Panics

This will panic if the same entity is specified multiple times. This is invalid because it would mean you would have two mutable references to the same component data at the same time.

Errors

This will error if there is a schema mismatch.

source

pub fn get_many_ref_mut<const N: usize>( &mut self, entities: [Entity; N] ) -> [Option<SchemaRefMut<'_>>; N]

Get SchemaRefMuts to the component data for multiple entities at the same time.

Panics

This will panic if the same entity is specified multiple times. This is invalid because it would mean you would have two mutable references to the same component data at the same time.

source

pub fn remove<T>(&mut self, entity: Entity) -> Option<T>where T: HasSchema,

Remove the component data for the entity if it exists.

Errors

Errors if the schema doesn’t match.

source

pub fn try_remove<T>( &mut self, entity: Entity ) -> Result<Option<T>, SchemaMismatchError>where T: HasSchema,

Remove the component data for the entity if it exists.

Errors

Errors if the schema doesn’t match.

source

pub fn remove_box(&mut self, entity: Entity) -> Option<SchemaBox>

Remove the component data for the entity if it exists.

source

pub unsafe fn remove_raw( &mut self, entity: Entity, out: Option<*mut c_void> ) -> bool

If there is a previous value, true will be returned.

If out is set and true is returned, the previous value will be written to it.

Safety

If set, the out pointer, must not overlap the internal component storage.

source

pub fn iter(&self) -> UntypedComponentStoreIter<'_>

Iterates immutably over all components of this type.

Very fast but doesn’t allow joining with other component types.

source

pub fn iter_mut(&mut self) -> UntypedComponentStoreIterMut<'_>

Iterates mutably over all components of this type.

Very fast but doesn’t allow joining with other component types.

source

pub fn iter_with_bitset( &self, bitset: Rc<BitSetVec> ) -> UntypedComponentBitsetIterator<'_>

Iterates immutably over the components of this type where bitset indicates the indices of entities.

Slower than iter() but allows joining between multiple component types.

source

pub fn iter_with_bitset_optional( &self, bitset: Rc<BitSetVec> ) -> UntypedComponentOptionalBitsetIterator<'_>

Iterates immutably over the components of this type where bitset indicates the indices of entities. Iterator provides Option, returning None if there is no component for entity in bitset.

source

pub fn iter_mut_with_bitset( &mut self, bitset: Rc<BitSetVec> ) -> UntypedComponentBitsetIteratorMut<'_>

Iterates mutable over the components of this type where bitset indicates the indices of entities.

Slower than iter() but allows joining between multiple component types.

source

pub fn iter_mut_with_bitset_optional( &mut self, bitset: Rc<BitSetVec> ) -> UntypedComponentOptionalBitsetIteratorMut<'_>

Iterates mutably over the components of this type where bitset indicates the indices of entities. Iterator provides Option, returning None if there is no component for entity in bitset.

source

pub fn bitset(&self) -> &BitSetVec

Returns the bitset indicating which entity indices have a component associated to them.

Useful to build conditions between multiple Components’ bitsets.

For example, take two bitsets from two different Components types. Then, bitset1.clone().bit_and(bitset2); And finally, you can use bitset1 in iter_with_bitset and iter_mut_with_bitset. This will iterate over the components of the entity only for entities that have both components.

source

pub fn into_typed<T>(self) -> ComponentStore<T>where T: HasSchema,

Convert into a typed ComponentStore.

Panics

Panics if the schema doesn’t match.

Trait Implementations§

source§

impl Clone for UntypedComponentStore

source§

fn clone(&self) -> UntypedComponentStore

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Drop for UntypedComponentStore

source§

fn drop(&mut self)

Executes the destructor for this type. Read more
source§

impl<T> TryFrom<UntypedComponentStore> for ComponentStore<T>where T: HasSchema,

§

type Error = SchemaMismatchError

The type returned in the event of a conversion error.
source§

fn try_from( untyped: UntypedComponentStore ) -> Result<ComponentStore<T>, <ComponentStore<T> as TryFrom<UntypedComponentStore>>::Error>

Performs the conversion.
source§

impl Send for UntypedComponentStore

source§

impl Sync for UntypedComponentStore

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for Twhere T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for Twhere T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for Twhere U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

§

impl<T> RawClone for Twhere T: Clone,

§

unsafe fn raw_clone(src: *const c_void, dst: *mut c_void)

Write the default value of the type to the pointer. Read more
§

fn raw_clone_cb( ) -> Unsafe<&'static (dyn Fn(*const c_void, *mut c_void) + Send + Sync)>

Get a callback suitable for [SchemaData].
§

impl<T> RawDrop for T

§

unsafe fn raw_drop(ptr: *mut c_void)

Write the default value of the type to the pointer. Read more
§

fn raw_drop_cb() -> Unsafe<&'static (dyn Fn(*mut c_void) + Send + Sync)>

Get a callback suitable for [SchemaData].
source§

impl<T> ToOwned for Twhere T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

§

fn vzip(self) -> V