Struct bevy::ecs::archetype::Archetypes
pub struct Archetypes { /* private fields */ }
Expand description
The backing store of all Archetype
s within a World
.
For more information, see the module level documentation.
Implementations§
§impl Archetypes
impl Archetypes
pub fn generation(&self) -> ArchetypeGeneration
pub fn generation(&self) -> ArchetypeGeneration
Returns the “generation”, a handle to the current highest archetype ID.
This can be used with the Index
Archetypes
implementation to
iterate over newly introduced Archetype
s since the last time this
function was called.
pub fn empty(&self) -> &Archetype
pub fn empty(&self) -> &Archetype
Fetches an immutable reference to the archetype without any components.
Shorthand for archetypes.get(ArchetypeId::EMPTY).unwrap()
pub fn get(&self, id: ArchetypeId) -> Option<&Archetype>
pub fn get(&self, id: ArchetypeId) -> Option<&Archetype>
Fetches an immutable reference to an Archetype
using its
ID. Returns None
if no corresponding archetype exists.
pub fn iter(&self) -> impl Iterator<Item = &Archetype>
pub fn iter(&self) -> impl Iterator<Item = &Archetype>
Returns a read-only iterator over all archetypes.
pub fn archetype_components_len(&self) -> usize
pub fn archetype_components_len(&self) -> usize
Returns the number of components that are stored in archetypes.
Note that if some component T
is stored in more than one archetype, it will be counted once for each archetype it’s present in.
Trait Implementations§
§impl Index<ArchetypeId> for Archetypes
impl Index<ArchetypeId> for Archetypes
§fn index(
&self,
index: ArchetypeId
) -> &<Archetypes as Index<ArchetypeId>>::Output
fn index( &self, index: ArchetypeId ) -> &<Archetypes as Index<ArchetypeId>>::Output
container[index]
) operation. Read more§impl Index<RangeFrom<ArchetypeGeneration>> for Archetypes
impl Index<RangeFrom<ArchetypeGeneration>> for Archetypes
§fn index(
&self,
index: RangeFrom<ArchetypeGeneration>
) -> &<Archetypes as Index<RangeFrom<ArchetypeGeneration>>>::Output
fn index( &self, index: RangeFrom<ArchetypeGeneration> ) -> &<Archetypes as Index<RangeFrom<ArchetypeGeneration>>>::Output
container[index]
) operation. Read more§impl IndexMut<ArchetypeId> for Archetypes
impl IndexMut<ArchetypeId> for Archetypes
§fn index_mut(
&mut self,
index: ArchetypeId
) -> &mut <Archetypes as Index<ArchetypeId>>::Output
fn index_mut( &mut self, index: ArchetypeId ) -> &mut <Archetypes as Index<ArchetypeId>>::Output
container[index]
) operation. Read more§impl<'a> SystemParam for &'a Archetypes
impl<'a> SystemParam for &'a Archetypes
§type Item<'w, 's> = &'w Archetypes
type Item<'w, 's> = &'w Archetypes
Self
, instantiated with new lifetimes. Read more§fn init_state(
_world: &mut World,
_system_meta: &mut SystemMeta
) -> <&'a Archetypes as SystemParam>::State
fn init_state( _world: &mut World, _system_meta: &mut SystemMeta ) -> <&'a Archetypes as SystemParam>::State
World
access used by this SystemParam
and creates a new instance of this param’s State
.§unsafe fn get_param<'w, 's>(
_state: &'s mut <&'a Archetypes as SystemParam>::State,
_system_meta: &SystemMeta,
world: UnsafeWorldCell<'w>,
_change_tick: Tick
) -> <&'a Archetypes as SystemParam>::Item<'w, 's>
unsafe fn get_param<'w, 's>( _state: &'s mut <&'a Archetypes as SystemParam>::State, _system_meta: &SystemMeta, world: UnsafeWorldCell<'w>, _change_tick: Tick ) -> <&'a Archetypes as SystemParam>::Item<'w, 's>
SystemParamFunction
. Read more§unsafe fn new_archetype(
state: &mut Self::State,
archetype: &Archetype,
system_meta: &mut SystemMeta
)
unsafe fn new_archetype( state: &mut Self::State, archetype: &Archetype, system_meta: &mut SystemMeta )
Archetype
, registers the components accessed by this SystemParam
(if applicable).a Read more§fn apply(state: &mut Self::State, system_meta: &SystemMeta, world: &mut World)
fn apply(state: &mut Self::State, system_meta: &SystemMeta, world: &mut World)
SystemParam
’s state.
This is used to apply Commands
during apply_deferred
.impl<'a> ReadOnlySystemParam for &'a Archetypes
Auto Trait Implementations§
impl Freeze for Archetypes
impl RefUnwindSafe for Archetypes
impl Send for Archetypes
impl Sync for Archetypes
impl Unpin for Archetypes
impl UnwindSafe for Archetypes
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