Enum chess::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 copy 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<Direction> for Direction

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

This method tests for self and other values to be equal, and is used by ==.

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

This method 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 StructuralEq for Direction

impl StructuralPartialEq for Direction