Struct PlayerTicketTracker 

pub(crate) struct PlayerTicketTracker {
    players_by_pos: FxHashMap<ChunkPos, FxHashSet<Uuid>>,
    player_positions: FxHashMap<Uuid, ChunkPos>,
    loading_coverage: FxHashMap<ChunkPos, usize>,
    view_distance: u8,
    simulation_distance: u8,
}

Owns player positions and the logical coverage of Vanilla’s player tickets.

Steel materializes the coverage immediately; generation admission remains bounded by its generation scheduler instead of Vanilla’s ticket dispatcher.

The caller holds this tracker and ChunkTicketStorage under the same ingress lock, so one method call is the atomic player-source mutation.

Fields

players_by_pos: FxHashMap<ChunkPos, FxHashSet<Uuid>>

player_positions: FxHashMap<Uuid, ChunkPos>

loading_coverage: FxHashMap<ChunkPos, usize>

view_distance: u8

simulation_distance: u8

Implementations

impl PlayerTicketTracker

pub(crate) fn new(view_distance: u8, simulation_distance: u8) -> Self

Creates an empty tracker with the current global player distances.

pub(crate) fn add_player( &mut self, storage: &mut ChunkTicketStorage, pos: ChunkPos, player_id: Uuid, ) -> SourceProjectionChanges

Adds a player, moving an existing UUID from its previous position.

pub(crate) fn remove_player( &mut self, storage: &mut ChunkTicketStorage, pos: ChunkPos, player_id: Uuid, ) -> SourceProjectionChanges

Removes a player only when the UUID still maps to the supplied position.

pub(crate) fn set_simulation_distance( &mut self, storage: &mut ChunkTicketStorage, simulation_distance: u8, ) -> SourceProjectionChanges

Replaces the simulation ticket at every occupied player center.

pub(crate) fn set_view_distance( &mut self, storage: &mut ChunkTicketStorage, view_distance: u8, ) -> SourceProjectionChanges

Updates loading coverage for a changed global view distance.

fn remove_player_from_center( &mut self, storage: &mut ChunkTicketStorage, pos: ChunkPos, player_id: Uuid, changes: &mut SourceProjectionChanges, )

fn increment_loading_coverage( &mut self, storage: &mut ChunkTicketStorage, pos: ChunkPos, changes: &mut SourceProjectionChanges, )

fn decrement_loading_coverage( &mut self, storage: &mut ChunkTicketStorage, pos: ChunkPos, changes: &mut SourceProjectionChanges, )

fn for_each_square_position( center: ChunkPos, distance: u8, visit: impl FnMut(ChunkPos), )

fn for_each_square_ring( center: ChunkPos, inner_distance: u8, outer_distance: u8, visit: impl FnMut(ChunkPos), )

Trait Implementations

impl Debug for PlayerTicketTracker

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

Formats the value using the given formatter.