Struct bevy_ecs::component::ComponentTicks
source · pub struct ComponentTicks { /* private fields */ }
Expand description
Records when a component was added and when it was last mutably dereferenced (or added).
Implementations§
source§impl ComponentTicks
impl ComponentTicks
sourcepub fn is_added(&self, last_change_tick: u32, change_tick: u32) -> bool
pub fn is_added(&self, last_change_tick: u32, change_tick: u32) -> bool
Returns true
if the component was added after the system last ran.
sourcepub fn is_changed(&self, last_change_tick: u32, change_tick: u32) -> bool
pub fn is_changed(&self, last_change_tick: u32, change_tick: u32) -> bool
Returns true
if the component was added or mutably dereferenced after the system last ran.
sourcepub fn set_changed(&mut self, change_tick: u32)
pub fn set_changed(&mut self, change_tick: u32)
Manually sets the change tick.
This is normally done automatically via the DerefMut
implementation
on Mut<T>
, ResMut<T>
, etc.
However, components and resources that make use of interior mutability might require manual updates.
Example
let world: World = unimplemented!();
let component_ticks: ComponentTicks = unimplemented!();
component_ticks.set_changed(world.read_change_tick());
Trait Implementations§
source§impl Clone for ComponentTicks
impl Clone for ComponentTicks
source§fn clone(&self) -> ComponentTicks
fn clone(&self) -> ComponentTicks
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for ComponentTicks
impl Debug for ComponentTicks
impl Copy for ComponentTicks
Auto Trait Implementations§
impl RefUnwindSafe for ComponentTicks
impl Send for ComponentTicks
impl Sync for ComponentTicks
impl Unpin for ComponentTicks
impl UnwindSafe for ComponentTicks
Blanket Implementations§
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read moresource§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read moresource§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read moresource§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more