Struct PredictiveParking 

pub struct PredictiveParking { /* private fields */ }

Predictive parking: park idle elevators near stops with the highest recent per-stop arrival rate.

Reads the ArrivalLog and CurrentTick world resources (always present under a built sim) to compute a rolling window of arrivals. Cars are greedily assigned to the highest-rate stops that don’t already have a car nearby, so the group spreads across the hottest floors rather than clustering on one.

Parallels the headline feature of Otis Compass Infinity — forecast demand from recent traffic, pre-position cars accordingly. Falls back to no-op when no arrivals have been logged.

Implementations

impl PredictiveParking

pub const fn new() -> Self

Create with the default rolling window (DEFAULT_ARRIVAL_WINDOW_TICKS).

pub const fn with_window_ticks(window_ticks: u64) -> Self

Create with a custom rolling window (ticks). Shorter windows react faster to traffic shifts; longer windows smooth out noise.

Panics

Panics on window_ticks == 0. A zero window would cause ArrivalLog::arrivals_in_window to return 0 for every stop — the strategy would silently no-op, which is almost never what the caller meant.

Trait Implementations

impl Default for PredictiveParking

fn default() -> Self

Returns the “default value” for a type.

impl RepositionStrategy for PredictiveParking

fn reposition( &mut self, idle_elevators: &[(EntityId, f64)], stop_positions: &[(EntityId, f64)], group: &ElevatorGroup, world: &World, out: &mut Vec<(EntityId, EntityId)>, )

Decide where to reposition idle elevators.

fn builtin_id(&self) -> Option<BuiltinReposition>

If this strategy is a known built-in variant, return it so Simulation::set_reposition callers don’t have to pass a separate BuiltinReposition id that might drift from the dispatcher’s actual type.

fn min_arrival_log_window(&self) -> u64

Minimum ArrivalLog retention (in ticks) the strategy needs to function. Strategies that read the log directly with a custom rolling window must override this so Simulation::set_reposition can widen ArrivalLogRetention to keep the data alive long enough for the query.