Module: EnPassantHelpers

Included in:
Bchess::Board
Defined in:
lib/bchess/helpers/en_passant_helpers.rb

Instance Method Summary collapse

Instance Method Details

#execute_en_passant(piece, row, column) ⇒ Object 



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# File 'lib/bchess/helpers/en_passant_helpers.rb', line 7

def execute_en_passant(piece, row, column)
  piece.move(row, column)
  remove_old_piece(*remove_en_passant(piece, *transform_field(@en_passant)), piece.color)
end

#long_pawn_move(piece, column, row) ⇒ Object 



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# File 'lib/bchess/helpers/en_passant_helpers.rb', line 17

def long_pawn_move(piece, column, row)
  piece.move(column, row)
  direction = piece.color == Bchess::WHITE ? 1 : -1
  @en_passant = field(column, (row + piece.row) / 2 - direction)
end

#remove_en_passant(piece, column, row) ⇒ Object 



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# File 'lib/bchess/helpers/en_passant_helpers.rb', line 12

def remove_en_passant(piece, column, row)
  direction = piece.color == Bchess::WHITE ? 1 : -1
  [column, row - direction]
end

#validate_en_passant(_piece, _column, _row) ⇒ Object 



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# File 'lib/bchess/helpers/en_passant_helpers.rb', line 2

def validate_en_passant(_piece, _column, _row)
  # TODO
  true
end