Struct ChildTileMask 

pub struct ChildTileMask {
    pub southwest: bool,
    pub southeast: bool,
    pub northwest: bool,
    pub northeast: bool,
}

Child-availability mask: one bit per quadrant indicating whether a child tile exists at the next zoom level.

Bit layout (matches the heightmap-1.0 spec):

Bit	Value	Quadrant
0	1	Southwest
1	2	Southeast
2	4	Northwest
3	8	Northeast

Fields

southwest: bool

Southwest child present.

southeast: bool

Southeast child present.

northwest: bool

Northwest child present.

northeast: bool

Northeast child present.

Implementations

impl ChildTileMask

pub const fn all() -> Self

Mask with every quadrant present.

pub const fn none() -> Self

Mask with no quadrants present.

pub const fn to_byte(self) -> u8

Pack into a single byte.

pub const fn from_byte(byte: u8) -> Self

Unpack from a byte.

Trait Implementations

impl Clone for ChildTileMask

fn clone(&self) -> ChildTileMask

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChildTileMask

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

Formats the value using the given formatter.

impl Default for ChildTileMask

fn default() -> ChildTileMask

Returns the “default value” for a type.

impl PartialEq for ChildTileMask

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ChildTileMask

impl Eq for ChildTileMask

impl StructuralPartialEq for ChildTileMask