Enum Rank 

#[repr(u8)]
pub enum Rank {
    First = 0,
    Second = 1,
    Third = 2,
    Fourth = 3,
    Fifth = 4,
    Sixth = 5,
    Seventh = 6,
    Eighth = 7,
}

Describe a rank (row) on a chess board

Variants

First = 0

Second = 1

Third = 2

Fourth = 3

Fifth = 4

Sixth = 5

Seventh = 6

Eighth = 7

Implementations

impl Rank

pub fn from_index(i: usize) -> Rank

Convert a usize into a Rank (the inverse of to_index). If the number is > 7, wrap around.

pub fn down(&self) -> Rank

Go one rank down. If impossible, wrap around.

pub fn up(&self) -> Rank

Go one file up. If impossible, wrap around.

pub fn to_index(self) -> usize

Convert this Rank into a usize between 0 and 7 (inclusive).

Trait Implementations

impl Clone for Rank

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Rank

impl Debug for Rank

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

Formats the value using the given formatter.

impl Eq for Rank

impl FromStr for Rank

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for Rank

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Rank

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Rank

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Rank