Struct LightQueueEntry 

pub struct LightQueueEntry(u64);

Vanilla’s packed light-propagation queue entry.

LightEngine.QueueEntry stores the source level in bits 0..3, one propagation bit per vanilla Direction.ordinal() in bits 4..9, and two increase flags in bits 10 and 11.

Tuple Fields

0: u64

Implementations

impl LightQueueEntry

pub const fn decrease_skip_one_direction( old_from_level: u8, skip_direction: Direction, ) -> Self

Creates a decrease entry that propagates to all directions except one.

pub const fn decrease_all_directions(old_from_level: u8) -> Self

Creates a decrease entry that propagates to all directions.

pub const fn increase_light_from_emission( new_from_level: u8, from_empty_shape: bool, ) -> Self

Creates an increase entry sourced from a block’s light emission.

pub const fn increase_skip_one_direction( new_from_level: u8, from_empty_shape: bool, skip_direction: Direction, ) -> Self

Creates an increase entry that propagates to all directions except one.

pub const fn increase_only_one_direction( new_from_level: u8, from_empty_shape: bool, direction: Direction, ) -> Self

Creates an increase entry that propagates to exactly one direction.

pub fn increase_sky_source_in_directions(directions: &[Direction]) -> Self

Creates a sky-source increase entry for selected directions.

pub const fn from_raw(raw: u64) -> Self

Creates a queue entry from vanilla’s packed representation.

pub const fn raw(self) -> u64

Returns vanilla’s packed representation.

pub const fn level(self) -> u8

Returns the source light level stored in this entry.

pub const fn is_from_empty_shape(self) -> bool

Returns true if propagation starts from an empty occlusion shape.

pub const fn is_increase_from_emission(self) -> bool

Returns true if this increase came from block light emission.

pub const fn should_propagate_in_direction(self, direction: Direction) -> bool

Returns true if this entry propagates in direction.

const fn with_level(entry: u64, level: u8) -> Self

const fn with_direction(entry: u64, direction: Direction) -> u64

const fn without_direction(entry: u64, direction: Direction) -> u64

const fn direction_bit(direction: Direction) -> u64

const fn vanilla_direction_index(direction: Direction) -> u64

Trait Implementations

impl Clone for LightQueueEntry

fn clone(&self) -> LightQueueEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LightQueueEntry

impl Debug for LightQueueEntry

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

Formats the value using the given formatter.

impl Eq for LightQueueEntry

impl PartialEq for LightQueueEntry

fn eq(&self, other: &LightQueueEntry) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for LightQueueEntry