Class: Bcalc::Calculator

Inherits:
Object
  • Object
show all
Defined in:
lib/bcalc/calculator.rb

Constant Summary collapse

SUITS = 
{
  "C" => Bcalc::Lib::BCALC_SUIT_CLUBS,
  "D" => Bcalc::Lib::BCALC_SUIT_DIAMONDS,
  "H" => Bcalc::Lib::BCALC_SUIT_HEARTS,
  "S" => Bcalc::Lib::BCALC_SUIT_SPADES,
  "NT" => Bcalc::Lib::BCALC_NT
}
PLAYERS = 
{
  "N" => Bcalc::Lib::BCALC_PLAYER_NORTH,
  "E" => Bcalc::Lib::BCALC_PLAYER_EAST,
  "S" => Bcalc::Lib::BCALC_PLAYER_SOUTH,
  "W" => Bcalc::Lib::BCALC_PLAYER_WEST,
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(deal:, declarer:, suit:) ⇒ Calculator

Returns a new instance of Calculator.



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# File 'lib/bcalc/calculator.rb', line 21

def initialize(deal:, declarer:, suit:)
  PLAYERS.keys.include?(declarer) || raise(ArgumentError, "Wrong declarer value: #{declarer}")
  SUITS.keys.include?(suit) || raise(ArgumentError, "Wrong suit value: #{suit}")

  @deal = deal
  @declarer = declarer
  @suit = suit
end

Instance Attribute Details

#deal ⇒ Object (readonly)

Returns the value of attribute deal.



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# File 'lib/bcalc/calculator.rb', line 19

def deal
  @deal
end

#declarer ⇒ Object (readonly)

Returns the value of attribute declarer.



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# File 'lib/bcalc/calculator.rb', line 19

def declarer
  @declarer
end

#suit ⇒ Object (readonly)

Returns the value of attribute suit.



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# File 'lib/bcalc/calculator.rb', line 19

def suit
  @suit
end

Instance Method Details

#tricks ⇒ Object

Returns number of tricks that declarer can take



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# File 'lib/bcalc/calculator.rb', line 31

def tricks
  solver = Bcalc::Lib.bcalcDDS_new("PBN", deal, SUITS[suit], leader)
  raise_on_error(solver)
  result = Bcalc::Lib.bcalcDDS_getTricksToTake(solver)
  MAX_TRICKS - result
ensure
  Bcalc::Lib.bcalcDDS_delete(solver)
end