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EventScheduler

Struct EventScheduler 

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

Priority-ordered event queue.

Ensures deterministic processing order:

  1. Events are sorted by time
  2. Ties are broken by sequence number (insertion order)

§Example

use simular::engine::scheduler::EventScheduler;
use simular::engine::SimTime;
use simular::engine::state::{SimEvent, Vec3};

let mut scheduler = EventScheduler::new();

scheduler.schedule(
    SimTime::from_secs(1.0),
    SimEvent::AddBody {
        mass: 1.0,
        position: Vec3::zero(),
        velocity: Vec3::zero(),
    },
);

Implementations§

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impl EventScheduler

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pub fn new() -> Self

Create a new event scheduler.

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pub fn schedule(&mut self, time: SimTime, event: SimEvent)

Schedule an event at the given time.

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pub fn schedule_all(&mut self, time: SimTime, events: &[SimEvent])

Schedule multiple events at the same time.

Events will be processed in the order they appear in the slice.

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pub fn next(&mut self) -> Option<ScheduledEvent>

Get the next event (removes from queue).

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pub fn peek(&self) -> Option<&ScheduledEvent>

Peek at the next event without removing it.

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pub fn next_before(&mut self, time: SimTime) -> Option<ScheduledEvent>

Get the next event if its time is before or at the given time.

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pub fn drain_until(&mut self, time: SimTime) -> Vec<ScheduledEvent>

Get all events up to and including the given time.

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pub fn is_empty(&self) -> bool

Check if the queue is empty.

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pub fn len(&self) -> usize

Get the number of pending events.

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pub fn clear(&mut self)

Clear all pending events.

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pub fn next_event_time(&self) -> Option<SimTime>

Get the time of the next event, if any.

Trait Implementations§

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impl Debug for EventScheduler

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for EventScheduler

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fn default() -> EventScheduler

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

Mutably borrows from an owned value. Read more
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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

Mutably dereferences the given pointer. Read more
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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> Same for T

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type Output = T

Should always be Self
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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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V