Class: Bchess::PGN::GameBody

Inherits:
Object
  • Object
show all
Includes:
BoardHelpers
Defined in:
lib/pgn/game_body.rb

Constant Summary collapse

C_COLUMN = 
2
G_COLUMN = 
6
WHITE_ROW = 
0
BLACK_ROW = 
7

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from BoardHelpers

#castle_detected?, #en_passant_detected?, #field, #invalid_data?, #kings_present?, #pawn_long_move_detected?, #promotion_detected?, #to_column, #to_row

Constructor Details

#initialize(body) ⇒ GameBody

Returns a new instance of GameBody.



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# File 'lib/pgn/game_body.rb', line 14

def initialize(body)
  @body = body
  @board = Bchess::Board.new
  @moves = []
end

Instance Attribute Details

#board ⇒ Object (readonly)

Returns the value of attribute board.



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# File 'lib/pgn/game_body.rb', line 4

def board
  @board
end

#body ⇒ Object (readonly)

Returns the value of attribute body.



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# File 'lib/pgn/game_body.rb', line 4

def body
  @body
end

#moves ⇒ Object (readonly)

Returns the value of attribute moves.



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# File 'lib/pgn/game_body.rb', line 4

def moves
  @moves
end

Instance Method Details

#extract_move(move) ⇒ Object 



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# File 'lib/pgn/game_body.rb', line 39

def extract_move(move)
  move_text = move.text_value
  info = return_move_information(move_text)

  piece = get_moving_piece(board, info)
  {
    piece: piece,
    column: to_column(info[:column]),
    row: to_row(info[:row]),
    promoted_piece: info[:promoted_piece]
  }
end

#extract_moves ⇒ Object 



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# File 'lib/pgn/game_body.rb', line 20

def extract_moves
  @board.read_fen

  body.elements&.each do |move|
    if is_castle?(move)
      move_info = extract_castle(move)
    elsif is_move?(move)
      move_info = extract_move(move)
    else
      next
    end

    piece = move_info.fetch(:piece)
    column, row = piece.column, piece.row
    board.move(*move_info.values)
    @moves << move_info.merge( { piece: piece.class.new(piece.color, column, row) })
  end
end