Class: Bridge::Contract

Inherits:
Object
  • Object
show all
Defined in:
lib/bridge/contract.rb

Overview

Represents the result of an auction. Swiped from: pybridge.svn.sourceforge.net/svnroot/pybridge/trunk/pybridge/pybridge/games/bridge/auction.py

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(auction) ⇒ Contract

Returns a new instance of Contract.

Parameters:

  • auction: —

    a completed, but not passed out, auction.

Raises:



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
# File 'lib/bridge/contract.rb', line 11

def initialize auction
  raise InvalidAuctionError unless auction.complete? and !auction.passed_out?
  # The contract is the last (and highest) bid.
  self.bid = auction.current_bid
  
  # The declarer is the first partner to bid the contract denomination.
  caller = auction.who_called?(self.bid)
  partnership = [caller, Direction[(caller + 2) % 4]]
  # Determine which partner is declarer.
  auction.calls.each do |call|
    if call.is_a?(Bid) and call.strain == self.bid.strain
      bidder = auction.who_called?(call)
      if partnership.include?(bidder)
        self.declarer = bidder
        break
      end
    end
  end

  self.double_by, self.redouble_by = [nil, nil]
  
  if auction.current_double
    # The opponent who doubled the contract bid.
    self.double_by = auction.who_called?(auction.current_double)
    if auction.current_redouble
      # The partner who redoubled an opponent's double.
      self.redouble_by = auction.who_called?(auction.current_redouble)
    end
  end
end

Instance Attribute Details

#bid ⇒ Object

Returns the value of attribute bid.



7
8
9
 
# File 'lib/bridge/contract.rb', line 7

def bid
  @bid
end

#declarer ⇒ Object

Returns the value of attribute declarer.



7
8
9
 
# File 'lib/bridge/contract.rb', line 7

def declarer
  @declarer
end

#double_by ⇒ Object

Returns the value of attribute double_by.



7
8
9
 
# File 'lib/bridge/contract.rb', line 7

def double_by
  @double_by
end

#redouble_by ⇒ Object

Returns the value of attribute redouble_by.



7
8
9
 
# File 'lib/bridge/contract.rb', line 7

def redouble_by
  @redouble_by
end

Instance Method Details

#to_hash ⇒ Object 



42
43
44
45
46
47
48
49
 
# File 'lib/bridge/contract.rb', line 42

def to_hash
  {
    :bid => bid,
    :declarer => declarer,
    :double_by => double_by,
    :redouble_by => redouble_by
  }
end