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

Extends the built in hecs::CommandBuffer.

Allows for deferred modifications to the world, spawn, insert, remove, despawn, or custom closures.

It is possible to insert a commandbuffer into another commandbuffer.

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impl CommandBuffer

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pub fn new() -> Self

Creates a new empty commandbuffer

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pub fn insert(&mut self, entity: Entity, components: impl DynamicBundle)

Inserts components into an already existing or reserved entity

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pub fn insert_one(&mut self, entity: Entity, component: impl Component)

Inserts a single component into an already existing or reserved entity

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pub fn spawn(&mut self, components: impl DynamicBundle)

Spawns a new entity with components. If the entity ID is desired, consider reserving an entity and then inserting

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pub fn despawn(&mut self, entity: Entity)

Despawn an entity from the world

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pub fn remove<C: Component + Bundle>(&mut self, entity: Entity)

Remove components from entity

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pub fn remove_one<C: Component>(&mut self, entity: Entity)

Remove a single component from the world

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pub fn execute(&mut self, world: &mut World)

Applies the recorded commands on the world

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pub fn append(&mut self, other: Self)

Nest a commandbuffer

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pub fn write(&mut self, cmd: impl FnOnce(&mut World) + Component)

Record a custom command modifying the world

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pub fn clear(&mut self)

Drop all recorded commands

Trait Implementations§

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impl Default for CommandBuffer

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fn default() -> CommandBuffer

Returns the “default value” for a type. Read more

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> Component for T
where T: Send + Sync + 'static,