pub struct Tick { /* private fields */ }
Expand description
A value that tracks when a system ran relative to other systems. This is used to power change detection.
Note that a system that hasn’t been run yet has a Tick
of 0.
Implementations§
source§impl Tick
impl Tick
sourcepub const MAX: Self = _
pub const MAX: Self = _
The maximum relative age for a change tick.
The value of this is equal to MAX_CHANGE_AGE
.
Since change detection will not work for any ticks older than this, ticks are periodically scanned to ensure their relative values are below this.
sourcepub fn is_newer_than(self, last_run: Tick, this_run: Tick) -> bool
pub fn is_newer_than(self, last_run: Tick, this_run: Tick) -> bool
Returns true
if this Tick
occurred since the system’s last_run
.
this_run
is the current tick of the system, used as a reference to help deal with wraparound.
Trait Implementations§
source§impl FromReflect for Tick
impl FromReflect for Tick
source§fn from_reflect(reflect: &dyn Reflect) -> Option<Self>
fn from_reflect(reflect: &dyn Reflect) -> Option<Self>
Constructs a concrete instance of
Self
from a reflected value.source§fn take_from_reflect(
reflect: Box<dyn Reflect>
) -> Result<Self, Box<dyn Reflect>>
fn take_from_reflect( reflect: Box<dyn Reflect> ) -> Result<Self, Box<dyn Reflect>>
Attempts to downcast the given value to
Self
using,
constructing the value using from_reflect
if that fails. Read moresource§impl GetTypeRegistration for Tick
impl GetTypeRegistration for Tick
source§fn get_type_registration() -> TypeRegistration
fn get_type_registration() -> TypeRegistration
Returns the default
TypeRegistration
for this type.source§fn register_type_dependencies(registry: &mut TypeRegistry)
fn register_type_dependencies(registry: &mut TypeRegistry)
Registers other types needed by this type. Read more
source§impl PartialEq for Tick
impl PartialEq for Tick
source§impl Reflect for Tick
impl Reflect for Tick
source§fn get_represented_type_info(&self) -> Option<&'static TypeInfo>
fn get_represented_type_info(&self) -> Option<&'static TypeInfo>
source§fn as_any_mut(&mut self) -> &mut dyn Any
fn as_any_mut(&mut self) -> &mut dyn Any
Returns the value as a
&mut dyn Any
.source§fn into_reflect(self: Box<Self>) -> Box<dyn Reflect>
fn into_reflect(self: Box<Self>) -> Box<dyn Reflect>
Casts this type to a boxed reflected value.
source§fn as_reflect(&self) -> &dyn Reflect
fn as_reflect(&self) -> &dyn Reflect
Casts this type to a reflected value.
source§fn as_reflect_mut(&mut self) -> &mut dyn Reflect
fn as_reflect_mut(&mut self) -> &mut dyn Reflect
Casts this type to a mutable reflected value.
source§fn clone_value(&self) -> Box<dyn Reflect>
fn clone_value(&self) -> Box<dyn Reflect>
Clones the value as a
Reflect
trait object. Read moresource§fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>
fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>
Performs a type-checked assignment of a reflected value to this value. Read more
source§fn reflect_kind(&self) -> ReflectKind
fn reflect_kind(&self) -> ReflectKind
Returns a zero-sized enumeration of “kinds” of type. Read more
source§fn reflect_ref(&self) -> ReflectRef<'_>
fn reflect_ref(&self) -> ReflectRef<'_>
Returns an immutable enumeration of “kinds” of type. Read more
source§fn reflect_mut(&mut self) -> ReflectMut<'_>
fn reflect_mut(&mut self) -> ReflectMut<'_>
Returns a mutable enumeration of “kinds” of type. Read more
source§fn reflect_owned(self: Box<Self>) -> ReflectOwned
fn reflect_owned(self: Box<Self>) -> ReflectOwned
Returns an owned enumeration of “kinds” of type. Read more
source§fn reflect_hash(&self) -> Option<u64>
fn reflect_hash(&self) -> Option<u64>
Returns a hash of the value (which includes the type). Read more
source§fn reflect_partial_eq(&self, value: &dyn Reflect) -> Option<bool>
fn reflect_partial_eq(&self, value: &dyn Reflect) -> Option<bool>
Returns a “partial equality” comparison result. Read more
source§fn apply(&mut self, value: &(dyn Reflect + 'static))
fn apply(&mut self, value: &(dyn Reflect + 'static))
Applies a reflected value to this value. Read more
source§fn serializable(&self) -> Option<Serializable<'_>>
fn serializable(&self) -> Option<Serializable<'_>>
Returns a serializable version of the value. Read more
source§fn is_dynamic(&self) -> bool
fn is_dynamic(&self) -> bool
Indicates whether or not this type is a dynamic type. Read more
source§impl Struct for Tick
impl Struct for Tick
source§fn field(&self, name: &str) -> Option<&dyn Reflect>
fn field(&self, name: &str) -> Option<&dyn Reflect>
Returns a reference to the value of the field named
name
as a &dyn Reflect
.source§fn field_mut(&mut self, name: &str) -> Option<&mut dyn Reflect>
fn field_mut(&mut self, name: &str) -> Option<&mut dyn Reflect>
Returns a mutable reference to the value of the field named
name
as a
&mut dyn Reflect
.source§fn field_at(&self, index: usize) -> Option<&dyn Reflect>
fn field_at(&self, index: usize) -> Option<&dyn Reflect>
Returns a reference to the value of the field with index
index
as a
&dyn Reflect
.source§fn field_at_mut(&mut self, index: usize) -> Option<&mut dyn Reflect>
fn field_at_mut(&mut self, index: usize) -> Option<&mut dyn Reflect>
Returns a mutable reference to the value of the field with index
index
as a &mut dyn Reflect
.source§fn name_at(&self, index: usize) -> Option<&str>
fn name_at(&self, index: usize) -> Option<&str>
Returns the name of the field with index
index
.source§fn iter_fields(&self) -> FieldIter<'_>
fn iter_fields(&self) -> FieldIter<'_>
Returns an iterator over the values of the reflectable fields for this struct.
source§fn clone_dynamic(&self) -> DynamicStruct
fn clone_dynamic(&self) -> DynamicStruct
Clones the struct into a
DynamicStruct
.source§impl TypePath for Tick
impl TypePath for Tick
source§fn type_path() -> &'static str
fn type_path() -> &'static str
Returns the fully qualified path of the underlying type. Read more
source§fn short_type_path() -> &'static str
fn short_type_path() -> &'static str
Returns a short, pretty-print enabled path to the type. Read more
source§fn type_ident() -> Option<&'static str>
fn type_ident() -> Option<&'static str>
source§fn crate_name() -> Option<&'static str>
fn crate_name() -> Option<&'static str>
impl Copy for Tick
impl Eq for Tick
impl StructuralPartialEq for Tick
Auto Trait Implementations§
impl Freeze for Tick
impl RefUnwindSafe for Tick
impl Send for Tick
impl Sync for Tick
impl Unpin for Tick
impl UnwindSafe for Tick
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
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
.source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.source§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.source§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.source§impl<T> DowncastSync for T
impl<T> DowncastSync for T
source§impl<T> DynamicTypePath for Twhere
T: TypePath,
impl<T> DynamicTypePath for Twhere
T: TypePath,
source§fn reflect_type_path(&self) -> &str
fn reflect_type_path(&self) -> &str
See
TypePath::type_path
.source§fn reflect_short_type_path(&self) -> &str
fn reflect_short_type_path(&self) -> &str
source§fn reflect_type_ident(&self) -> Option<&str>
fn reflect_type_ident(&self) -> Option<&str>
See
TypePath::type_ident
.source§fn reflect_crate_name(&self) -> Option<&str>
fn reflect_crate_name(&self) -> Option<&str>
See
TypePath::crate_name
.source§fn reflect_module_path(&self) -> Option<&str>
fn reflect_module_path(&self) -> Option<&str>
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.source§impl<T> FromWorld for Twhere
T: Default,
impl<T> FromWorld for Twhere
T: Default,
source§fn from_world(_world: &mut World) -> T
fn from_world(_world: &mut World) -> T
Creates
Self
using data from the given World
.source§impl<S> GetField for Swhere
S: Struct,
impl<S> GetField for Swhere
S: Struct,
source§impl<T> GetPath for T
impl<T> GetPath for T
source§fn reflect_path<'p>(
&self,
path: impl ReflectPath<'p>
) -> Result<&(dyn Reflect + 'static), ReflectPathError<'p>>
fn reflect_path<'p>( &self, path: impl ReflectPath<'p> ) -> Result<&(dyn Reflect + 'static), ReflectPathError<'p>>
Returns a reference to the value specified by
path
. Read moresource§fn reflect_path_mut<'p>(
&mut self,
path: impl ReflectPath<'p>
) -> Result<&mut (dyn Reflect + 'static), ReflectPathError<'p>>
fn reflect_path_mut<'p>( &mut self, path: impl ReflectPath<'p> ) -> Result<&mut (dyn Reflect + 'static), ReflectPathError<'p>>
Returns a mutable reference to the value specified by
path
. Read moresource§fn path<'p, T>(
&self,
path: impl ReflectPath<'p>
) -> Result<&T, ReflectPathError<'p>>where
T: Reflect,
fn path<'p, T>(
&self,
path: impl ReflectPath<'p>
) -> Result<&T, ReflectPathError<'p>>where
T: Reflect,
Returns a statically typed reference to the value specified by
path
. Read moresource§fn path_mut<'p, T>(
&mut self,
path: impl ReflectPath<'p>
) -> Result<&mut T, ReflectPathError<'p>>where
T: Reflect,
fn path_mut<'p, T>(
&mut self,
path: impl ReflectPath<'p>
) -> Result<&mut T, ReflectPathError<'p>>where
T: Reflect,
Returns a statically typed mutable reference to the value specified by
path
. Read more