Class: Egd::PositionFeatureDiscerner

Inherits:
Object
  • Object
show all
Defined in:
lib/egd/position_feature_discerner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(move:, end_fen:) ⇒ PositionFeatureDiscerner

Returns a new instance of PositionFeatureDiscerner.



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# File 'lib/egd/position_feature_discerner.rb', line 11

def initialize(move:, end_fen:)
  @move = move
  @end_fen = end_fen
end

Instance Attribute Details

#end_fen ⇒ Object (readonly)

Currently minimal function, Only looks at supplied move and tells whether the position is a check or checkmate.



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# File 'lib/egd/position_feature_discerner.rb', line 9

def end_fen
  @end_fen
end

#move ⇒ Object (readonly)

Currently minimal function, Only looks at supplied move and tells whether the position is a check or checkmate.



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# File 'lib/egd/position_feature_discerner.rb', line 9

def move
  @move
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/egd/position_feature_discerner.rb', line 16

def call
  return @features if defined?(@features)

  @features = {}

  @features.merge!("check" => true, "checkmate" => true) if move[%r'#\z']
  @features.merge!("check" => true) if move[%r'\+\z']

  @features
end