Struct GridMask 

pub struct GridMask { /* private fields */ }

Boolean mask for grid-like data.

Implementations

impl GridMask

pub fn new((rows, cols): (usize, usize)) -> Self

Creates a new all-false grid mask with the specified rows and cols.

pub fn set_false(&mut self, pos: Pos) -> bool

Sets the specified pos to false.

Returns true if the value changed, or false if it did not.

pub fn set_true(&mut self, pos: Pos) -> bool

Sets the specified pos to true.

Returns true if the value changed, or false if it did not.

pub fn toggle(&mut self, pos: Pos)

Toggles the specified pos between false and true and vice versa.

Trait Implementations

impl Debug for GridMask

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

Formats the value using the given formatter.

impl Index<Pos> for GridMask

type Output = bool

The returned type after indexing.

fn index(&self, pos: Pos) -> &Self::Output

Performs the indexing (container[index]) operation.

impl IndexMut<Pos> for GridMask

fn index_mut(&mut self, pos: Pos) -> &mut Self::Output

Performs the mutable indexing (container[index]) operation.