Struct DestinationQueue 

pub struct DestinationQueue { /* private fields */ }

FIFO queue of target stop EntityIds for a single elevator.

Adjacent duplicates are collapsed on push:

• push_back is a no-op if the last entry already equals the new stop.
• push_front is a no-op if the first entry already equals the new stop.

Games interact with the queue via Simulation::push_destination, Simulation::push_destination_front, and Simulation::clear_destinations.

Implementations

impl DestinationQueue

pub const fn new() -> Self

Create an empty queue.

pub fn queue(&self) -> &[EntityId]

Read-only view of the current queue in FIFO order.

pub const fn is_empty(&self) -> bool

true if the queue contains no entries.

pub const fn len(&self) -> usize

Number of entries in the queue.

pub fn front(&self) -> Option<EntityId>

The stop at the front of the queue (next destination).

pub fn contains(&self, stop: &EntityId) -> bool

true if the queue contains stop anywhere.

Trait Implementations

impl Clone for DestinationQueue

fn clone(&self) -> DestinationQueue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DestinationQueue

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

Formats the value using the given formatter.

impl Default for DestinationQueue

fn default() -> DestinationQueue

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DestinationQueue

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DestinationQueue

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

where __S: Serializer,

Serialize this value into the given Serde serializer.