Struct ChunkTracker 

pub struct ChunkTracker<const MAX_LEVEL: u8> {
    source_levels: FxHashMap<ChunkPos, u8>,
    pending_source_levels: FxHashMap<ChunkPos, u8>,
    levels: FxHashMap<ChunkPos, ChunkTicketLevel>,
    pending_levels: FxHashMap<ChunkPos, u8>,
    propagation_queue: LeveledPropagationQueue,
    changes: Vec<ChunkLevelChange>,
}

Tracks sources and their minimum propagated levels through MAX_LEVEL.

Fields

source_levels: FxHashMap<ChunkPos, u8>

pending_source_levels: FxHashMap<ChunkPos, u8>

levels: FxHashMap<ChunkPos, ChunkTicketLevel>

pending_levels: FxHashMap<ChunkPos, u8>

propagation_queue: LeveledPropagationQueue

changes: Vec<ChunkLevelChange>

Implementations

impl<const MAX_LEVEL: u8> ChunkTracker<MAX_LEVEL>

const ABSENT_LEVEL: u8

pub fn new() -> Self

Creates an empty tracker for this domain.

pub(crate) fn apply_source_update(&mut self, update: SourceLevelUpdate)

Applies the latest effective ticket source level at one position.

pub(crate) fn apply_source_updates( &mut self, updates: impl IntoIterator<Item = SourceLevelUpdate>, )

Applies effective source updates in iterator order.

pub fn run_all_updates(&mut self) -> &[ChunkLevelChange]

Applies pending source changes with minimum 8-neighbor propagation. The returned changes include additions, updates, and removals.

pub(crate) fn take_changes(&mut self) -> Vec<ChunkLevelChange>

Takes the change buffer produced by the last propagation pass.

pub(crate) fn recycle_changes(&mut self, changes: Vec<ChunkLevelChange>)

Reuses a drained change buffer on the next propagation pass.

pub fn get_level(&self, pos: ChunkPos) -> Option<ChunkTicketLevel>

Returns the last propagated ticket level at pos.

fn source_level(&self, pos: ChunkPos) -> u8

fn level(&self, pos: ChunkPos) -> u8

fn apply_pending_level( &mut self, pos: ChunkPos, computed_level: u8, original_levels: &mut FxHashMap<ChunkPos, Option<ChunkTicketLevel>>, )

fn set_level( &mut self, pos: ChunkPos, level: u8, original_levels: &mut FxHashMap<ChunkPos, Option<ChunkTicketLevel>>, )

fn check_neighbors_after_update( &mut self, pos: ChunkPos, level: u8, only_decrease: bool, )

fn check_neighbor( &mut self, from: ChunkPos, to: ChunkPos, from_level: u8, only_decrease: bool, )

fn check_edge( &mut self, known_parent: Option<ChunkPos>, pos: ChunkPos, level_from_parent: u8, only_decrease: bool, )

fn compute_level( &self, pos: ChunkPos, known_parent: Option<ChunkPos>, level_from_parent: u8, ) -> u8

fn replace_pending_level( &mut self, pos: ChunkPos, current_level: u8, computed_level: u8, )

fn schedule_level(&mut self, pos: ChunkPos, computed_level: u8)

Trait Implementations

impl<const MAX_LEVEL: u8> Debug for ChunkTracker<MAX_LEVEL>

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

Formats the value using the given formatter.

impl<const MAX_LEVEL: u8> Default for ChunkTracker<MAX_LEVEL>

fn default() -> Self

Returns the “default value” for a type.