Enum Direction 

pub enum Direction {
    Up,
    UpRight,
    Right,
    DownRight,
    Down,
    DownLeft,
    Left,
    UpLeft,
}

Describe 8 directions.

Variants

Up

UpRight

Right

DownRight

Down

DownLeft

Left

UpLeft

Implementations

impl Direction

pub fn has(&self, direction: Direction) -> bool

Verify if a direction is contain in another.

Examples

use chess::Direction;

assert_eq!(Direction::Up.has(Direction::Up), true);
assert_eq!(Direction::Up.has(Direction::Right), false);
assert_eq!(Direction::UpRight.has(Direction::Up), true);
assert_eq!(Direction::UpRight.has(Direction::Right), true);
// but it's not symmetric
assert_eq!(Direction::Up.has(Direction::UpRight), false);

Trait Implementations

impl Clone for Direction

fn clone(&self) -> Direction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Direction

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

Formats the value using the given formatter.

impl PartialEq for Direction

fn eq(&self, other: &Direction) -> 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 Direction

impl Eq for Direction

impl StructuralPartialEq for Direction