Struct Position 

pub struct Position { /* private fields */ }

Two disjoint bitboards and the side whose transition comes next.

Implementations

impl Position

pub const fn start() -> Self

pub fn from_bits( black: u64, white: u64, side_to_move: Side, ) -> Result<Self, &'static str>

pub fn from_cassio(board: &str, side: &str) -> Result<Self, &'static str>

Parse the 64-cell board plus side token used by Cassio’s engine protocol. X, B, or * denotes black; O or W denotes white.

pub fn to_cassio(self) -> String

Serialize a Cassio position as 64 cells followed immediately by X or O for the side to move.

pub const fn bits(self, side: Side) -> u64

pub const fn occupied(self) -> u64

pub const fn side_to_move(self) -> Side

pub const fn empty_count(self) -> u8

pub const fn occupied_count(self) -> u8

pub const fn disc_count(self, side: Side) -> u8

pub fn side_at(self, square: Square) -> Option<Side>

pub fn legal_placement_bits(self) -> u64

pub fn legal_placements_for(self, side: Side) -> u64

pub fn frontier_bits(self, side: Side) -> u64

pub fn potential_mobility_bits(self, side: Side) -> u64

pub fn legal_moves(self) -> MoveList

Returns every legal placement, or a single pass when one is required.

pub fn flips_for(self, square: Square) -> u64

pub fn result(self) -> GameResult

pub fn make_move(&mut self, mv: Move) -> Result<Undo, MoveError>

Plays one placement or forced pass and returns exact undo data.

pub fn unmake_move(&mut self, undo: Undo)

Restores the position that existed before undo was produced.

pub fn from_moves(moves: &[Move]) -> Result<Self, MoveError>

pub fn mirrored(self) -> Self

Trait Implementations

impl Clone for Position

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 Position

impl Debug for Position

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

Formats the value using the given formatter.

impl Default for Position

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Position

impl Hash for Position

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 Position

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Position