Module: BoardEvaluation

Included in:
Board
Defined in:
lib/sapphire-chess/board/board_evaluation.rb

Instance Method Summary collapse

Instance Method Details

#evaluate ⇒ Object 



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# File 'lib/sapphire-chess/board/board_evaluation.rb', line 2

def evaluate
  material_evaluation + piece_location_evaluation
end

#evaluate_move(move, color) ⇒ Object 



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# File 'lib/sapphire-chess/board/board_evaluation.rb', line 20

def evaluate_move(move, color)
  provisional(move, color) do
    evaluate
  end
end

#material_evaluation ⇒ Object 



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# File 'lib/sapphire-chess/board/board_evaluation.rb', line 6

def material_evaluation
  white_evaluation = friendly_pieces(:white).map(&:value).sum
  black_evaluation = -friendly_pieces(:black).map(&:value).sum

  white_evaluation + black_evaluation
end

#piece_location_evaluation ⇒ Object 



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# File 'lib/sapphire-chess/board/board_evaluation.rb', line 13

def piece_location_evaluation
  white_evaluation = friendly_pieces(:white).map(&:location_value).sum
  black_evaluation = -friendly_pieces(:black).map(&:location_value).sum

  white_evaluation + black_evaluation
end