pawn

package module
v0.0.0-...-8ccc9df Latest Latest
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 Go to latest Published: Apr 25, 2017 License: MIT Imports: 10 Imported by: 0

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pawn

Learning Go by implementing chess

PGN Replayer Demo

Demo

Documentation

Index

Constants

View Source 
const (
	WhiteWin Outcome = "1-0"
	BlackWin         = "0-1"
	Draw             = "1/2-1/2"
)
View Source 
const (
	A File = "a"
	B      = "b"
	C      = "c"
	D      = "d"
	E      = "e"
	F      = "f"
	G      = "g"
	H      = "h"
)

Variables

View Source 
var (
	ErrorMoveByWrongColor = errors.New("pawn: move by wrong color")
	ErrorInvalidPosition  = errors.New("pawn: invalid position")
)
View Source 
var (
	A1 = Position{A, 1}
	A2 = Position{A, 2}
	A3 = Position{A, 3}
	A4 = Position{A, 4}
	A5 = Position{A, 5}
	A6 = Position{A, 6}
	A7 = Position{A, 7}
	A8 = Position{A, 8}
	B1 = Position{B, 1}
	B2 = Position{B, 2}
	B3 = Position{B, 3}
	B4 = Position{B, 4}
	B5 = Position{B, 5}
	B6 = Position{B, 6}
	B7 = Position{B, 7}
	B8 = Position{B, 8}
	C1 = Position{C, 1}
	C2 = Position{C, 2}
	C3 = Position{C, 3}
	C4 = Position{C, 4}
	C5 = Position{C, 5}
	C6 = Position{C, 6}
	C7 = Position{C, 7}
	C8 = Position{C, 8}
	D1 = Position{D, 1}
	D2 = Position{D, 2}
	D3 = Position{D, 3}
	D4 = Position{D, 4}
	D5 = Position{D, 5}
	D6 = Position{D, 6}
	D7 = Position{D, 7}
	D8 = Position{D, 8}
	E1 = Position{E, 1}
	E2 = Position{E, 2}
	E3 = Position{E, 3}
	E4 = Position{E, 4}
	E5 = Position{E, 5}
	E6 = Position{E, 6}
	E7 = Position{E, 7}
	E8 = Position{E, 8}
	F1 = Position{F, 1}
	F2 = Position{F, 2}
	F3 = Position{F, 3}
	F4 = Position{F, 4}
	F5 = Position{F, 5}
	F6 = Position{F, 6}
	F7 = Position{F, 7}
	F8 = Position{F, 8}
	G1 = Position{G, 1}
	G2 = Position{G, 2}
	G3 = Position{G, 3}
	G4 = Position{G, 4}
	G5 = Position{G, 5}
	G6 = Position{G, 6}
	G7 = Position{G, 7}
	G8 = Position{G, 8}
	H1 = Position{H, 1}
	H2 = Position{H, 2}
	H3 = Position{H, 3}
	H4 = Position{H, 4}
	H5 = Position{H, 5}
	H6 = Position{H, 6}
	H7 = Position{H, 7}
	H8 = Position{H, 8}
)
View Source 
var NoPiece = Piece{}

Functions

This section is empty.

Types

type AlgebraicNotation 

type AlgebraicNotation string

func (AlgebraicNotation) DestinationPosition 

func (an AlgebraicNotation) DestinationPosition() Position

func (AlgebraicNotation) IsCastle 

func (an AlgebraicNotation) IsCastle() bool

func (AlgebraicNotation) IsCastleKingSide 

func (an AlgebraicNotation) IsCastleKingSide() bool

func (AlgebraicNotation) IsCastleQueenSide 

func (an AlgebraicNotation) IsCastleQueenSide() bool

func (AlgebraicNotation) IsCheck 

func (an AlgebraicNotation) IsCheck() bool

func (AlgebraicNotation) IsCheckMate 

func (an AlgebraicNotation) IsCheckMate() bool

func (AlgebraicNotation) IsPromotion 

func (an AlgebraicNotation) IsPromotion() bool

func (AlgebraicNotation) Material 

func (an AlgebraicNotation) Material() Material

func (AlgebraicNotation) OriginDisambiguated 

func (an AlgebraicNotation) OriginDisambiguated() bool

func (AlgebraicNotation) OriginFile 

func (an AlgebraicNotation) OriginFile() File

func (AlgebraicNotation) OriginRank 

func (an AlgebraicNotation) OriginRank() Rank

func (AlgebraicNotation) PromotedTo 

func (an AlgebraicNotation) PromotedTo() Material

func (AlgebraicNotation) Takes 

func (an AlgebraicNotation) Takes() bool

type AlgebraiclyNotated 

type AlgebraiclyNotated interface {
	AN() string
	FAN() string
}

type Board 

type Board struct {
	Squares []*Square
	// contains filtered or unexported fields
}

func NewBoard 

func NewBoard() *Board

func (*Board) MoveFromAlgebraic 

func (b *Board) MoveFromAlgebraic(an AlgebraicNotation) (Move, error)

func (Board) Rows 

func (b Board) Rows() [][]*Square

Returns 8 rows of 8 squares each starting at the top left and moving down

func (Board) SquareAtPosition 

func (b Board) SquareAtPosition(position Position) *Square

func (Board) SquaresForPiece 

func (b Board) SquaresForPiece(piece Piece) []*Square

type Color 

type Color string
const (
	Black Color = "Black"
	White Color = "White"
)

type Direction 

type Direction int
const (
	Up Direction = iota
	Down
	Left
	Right
	UpLeftDiagonal
	UpRightDiagonal
	DownLeftDiagonal
	DownRightDiagonal
)

type File 

type File string
var NilFile File

type Game 

type Game struct {
	Board
	Moves []Move
}

type Material 

type Material uint8
const (
	Pawn Material = iota + 1
	Rook
	Bishop
	Knight
	Queen
	King
)

func (Material) AN 

func (m Material) AN() string

type Move 

type Move struct {
	Piece
	From  Position
	To    Position
	Takes bool
}

type Movetext 

type Movetext struct {
	Moves []*MovetextMove
}

func (Movetext) String 

func (m Movetext) String() string

func (Movetext) Turns 

func (m Movetext) Turns() []AlgebraicNotation

type MovetextMove 

type MovetextMove struct {
	Number    uint8
	WhiteMove AlgebraicNotation
	BlackMove AlgebraicNotation
}

func (MovetextMove) String 

func (m MovetextMove) String() string

type Outcome 

type Outcome string

type PGN 

type PGN struct {
	Tags
	Movetext
	Outcome
}

func NewPGN 

func NewPGN() PGN

func ParseAllPGNFromFilePath 

func ParseAllPGNFromFilePath(str string) []PGN

func ParsePGN 

func ParsePGN(str string) PGN

Parses a string containing Portable Game Notation and returns a PGN struct

Spec: https://www.chessclub.com/user/help/PGN-spec

func (PGN) MatchUp 

func (p PGN) MatchUp() string

func (PGN) String 

func (p PGN) String() string

type PGNParser 

type PGNParser struct {
	// contains filtered or unexported fields
}

func NewPGNParser 

func NewPGNParser() *PGNParser

func NewPGNParserFromReader 

func NewPGNParserFromReader(r io.Reader) *PGNParser

func (*PGNParser) ParseAll 

func (p *PGNParser) ParseAll() []PGN

func (*PGNParser) ParseFromString 

func (p *PGNParser) ParseFromString(str string) PGN

type Path 

type Path []Position

type Piece 

type Piece struct {
	Color
	Material
}

func (Piece) AN 

func (p Piece) AN() string

func (Piece) FAN 

func (p Piece) FAN() string

type Position 

type Position struct {
	File // vertical columns a through h from queenside to kingside
	Rank // horizontal rows 1 to 8 from White's side of the board
}

func (Position) AN 

func (p Position) AN() string

func (Position) Jump 

func (p Position) Jump(directions ...Direction) (Position, error)

func (Position) OneMove 

func (p Position) OneMove(direction Direction) Path

func (Position) Path 

func (p Position) Path(direction Direction) Path

type Rank 

type Rank uint8
var NilRank Rank

type Square 

type Square struct {
	Position
	Piece
}

func AllSquares 

func AllSquares() []*Square

func NewSquare 

func NewSquare(position Position) *Square

func (Square) AN 

func (s Square) AN() string

func (Square) String 

func (s Square) String() string

type Tags 

type Tags map[string]string

func (Tags) String 

func (t Tags) String() string

Source Files

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