class LxChess::Board

• LxChess::Board
• Reference
• Object

Overview

A Board represents the squares of a chess board. it also handles coversion of indicies <=> cords. The internal representation is a contiguous array

Included Modules

• Enumerable(LxChess::Piece?)

Defined in:

lx_chess/board.cr

Constant Summary

LETTERS = ('a'..'z').to_a

Constructors

• .new(width : Int16 = 8, height : Int16 = 8)

Class Method Summary

• .cord(index : Int, width = 8)

  Convert an index into a human coordinate (ex: a1)

Instance Method Summary

• #[](index : Int)

  Retrieve a piece at an index

• #[](cord : String)

  Retrieve a piece at a human cord ex: a1

• #[]=(index : Int, piece : Piece | Nil)

  Set a piece on the board at a certain index

• #[]=(cord : String, piece : Piece | Nil)

  Set a piece on the board at a certain human readable cord

• #at(x : Int, y : Int)

  Retrieve a piece at an x and y cord

• #border_left(index)

  Border to the left of a given index

• #border_right(index)

  Border to the right of a given index

• #cord(index : Int)

  Convert an index into a human coordinate (ex: a1)

• #dist_left(index)

  Distance to the left border from an index

• #dist_right(index)

  Distance to the right border from an index

• #each(&)

  Must yield this collection's elements to the block.

• #file(index : Int16)

  The file of a given index file(4) # => 4 file(8) # => 0

• #height : Int16
• #height=(height : Int16)
• #index_of(x : Int, y : Int)

  Convert an x and y position into an index.

• #index_of(cord : String)

  Convert human cord into an index on the board.

• #indexes_of(cords : Array(String))
• #move(from : String | Int16, to : String | Int16)

  Move a piece from a position to a new position

• #pieces(color : Nil | Symbol = nil)

  Select pieces from the board by specifying an option color

• #rank(index : Int16)

  The rank of a given index rank(4) # => 0 rank(8) # => 1

• #rel_index(index : Int, x : Int, y : Int)
• #squares : Array(LxChess::Piece?)
• #squares=(squares : Array(Nil | LxChess::Piece))
• #width : Int16
• #width=(width : Int16)

Constructor Detail

Class Method Detail

Instance Method Detail