class Egd::FenBuilder
Constants
- NULL_FEN
Attributes
move[R]
This service takes in a FEN string and a chess move in algebraic notation. Outputs the FEN of the resulting position
start_fen[R]
This service takes in a FEN string and a chess move in algebraic notation. Outputs the FEN of the resulting position
Public Class Methods
new(start_fen: nil, move: nil)
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Egd::FenBuilder.new
(start_fen
: nil, move:).call
# File lib/egd/fen_builder.rb, line 11 def initialize(start_fen: nil, move: nil) @start_fen = start_fen || NULL_FEN @move = move.to_s.gsub(%r'\A\d+\.\s*\.*\s*', "") end
Public Instance Methods
call()
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# File lib/egd/fen_builder.rb, line 16 def call @fen ||= ( move != "" ? PGN::FEN.new(start_fen).to_position.move(move).to_fen.to_s : @start_fen ) end