bevy_ggrs

Struct RollbackEntityMap

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pub struct RollbackEntityMap(/* private fields */);
Expand description

A Resource which provides an [EntityMap], describing how Entities changed during a rollback.

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impl RollbackEntityMap

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pub fn new(map: HashMap<Entity, Entity>) -> Self

Create a new RollbackEntityMap, which can generate EntityMaps as required.

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pub fn generate_map(&self) -> HashMap<Entity, Entity>

Generate an owned [EntityMap], which can be used concurrently with other systems.

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pub fn iter(&self) -> impl Iterator<Item = (Entity, Entity)> + '_

Iterate over all Entity mappings as (old, new)

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

Get the mapping for a particular Entity, if it exists.

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pub fn len(&self) -> usize

The quantity of mappings contained.

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pub fn is_empty(&self) -> bool

Returns true if there are no mappings contained, false otherwise.

Trait Implementations§

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impl Default for RollbackEntityMap

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fn default() -> RollbackEntityMap

Returns the “default value” for a type. Read more
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impl EntityMapper for &RollbackEntityMap

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fn get_mapped(&mut self, source: Entity) -> Entity

Returns the “target” entity that maps to the given source.
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fn set_mapped(&mut self, _source: Entity, _target: Entity)

Maps the target entity to the given source. For some implementations this might not actually determine the result of EntityMapper::get_mapped.
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impl From<EntityHashMap<Entity>> for RollbackEntityMap

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fn from(value: EntityHashMap<Entity>) -> Self

Converts to this type from the input type.
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impl From<HashMap<Entity, Entity>> for RollbackEntityMap

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fn from(value: HashMap<Entity, Entity>) -> Self

Converts to this type from the input type.
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impl Resource for RollbackEntityMap
where Self: Send + Sync + 'static,

Auto Trait Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

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impl<T> Downcast for T
where T: Any,

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Converts Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.
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type Error = Infallible

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

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