Struct DestinationLog 

pub struct DestinationLog { /* private fields */ }

Append-only log of rider destinations, mirror of ArrivalLog for the outgoing side of a trip.

Enables destination-aware signals that the origin-only ArrivalLog can’t produce — specifically TrafficMode::DownPeak detection, which triggers on “lots of riders heading to the lobby” rather than “lots of riders arriving from it.”

Auto-installed alongside ArrivalLog by Simulation::new and appended to in the same rider-spawn path. Shares ArrivalLogRetention’s retention window so the two logs can’t drift against each other’s time horizon.

Implementations

impl DestinationLog

pub fn record(&mut self, tick: u64, destination: EntityId)

Record that a rider spawned at tick heading to destination.

pub fn destinations_in_window( &self, stop: EntityId, now: u64, window_ticks: u64, ) -> u64

Count rides to stop within the window [now - window, now] inclusive. window_ticks = 0 always returns 0.

pub fn prune_before(&mut self, cutoff: u64)

Prune entries older than cutoff ticks. Called from Simulation::advance_tick alongside ArrivalLog::prune_before.

pub const fn len(&self) -> usize

Number of recorded events (diagnostic / tests).

pub const fn is_empty(&self) -> bool

Whether the log has no recorded events.

pub fn remap_entity_ids(&mut self, id_remap: &HashMap<EntityId, EntityId>)

Remap entity IDs for snapshot restore. Mirrors ArrivalLog::remap_entity_ids.

Trait Implementations

impl Clone for DestinationLog

fn clone(&self) -> DestinationLog

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DestinationLog

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

Formats the value using the given formatter.

impl Default for DestinationLog

fn default() -> DestinationLog

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DestinationLog

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DestinationLog

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.