Class: Pairity::PairGenerator

Inherits:
Object
  • Object
show all
Defined in:
lib/pairity/pair_generator.rb

Constant Summary collapse

@@shuffle = 
false

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(matrix) ⇒ PairGenerator

Returns a new instance of PairGenerator.



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# File 'lib/pairity/pair_generator.rb', line 15

def initialize(matrix)
  @matrix = matrix
  @last_pairs = []
  @pairs = []
  @nopes = []
end

Instance Attribute Details

#last_pairs ⇒ Object (readonly)

Returns the value of attribute last_pairs.



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# File 'lib/pairity/pair_generator.rb', line 9

def last_pairs
  @last_pairs
end

#pairs ⇒ Object (readonly)

Returns the value of attribute pairs.



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# File 'lib/pairity/pair_generator.rb', line 9

def pairs
  @pairs
end

Class Method Details

.shuffle=(toggle) ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 11

def self.shuffle=(toggle)
  @@shuffle = toggle
end

Instance Method Details

#abolish_pairing(person1, person2) ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 63

def abolish_pairing(person1, person2)
  @matrix.add_weight_to_pair(1_000_000,[person1,person2].sort)
end

#days_for_pair(person1, person2) ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 59

def days_for_pair(person1, person2)
  @matrix[person1, person2].days
end

#equilibrium ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 71

def equilibrium
  @matrix.people.combination(2).to_a.size / (@matrix.people.size / 2)
end

#generate_pairs ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 22

def generate_pairs
  @pairs = []
  @pairs = @matrix.optimal_pairs(@nopes)
  move_solo_to_the_end
  @pairs
end

#include?(person1, person2) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pairity/pair_generator.rb', line 75

def include?(person1, person2)
  @pairs.any? { |pair| pair == [person1, person2].sort }
end

#move_solo_to_the_end ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 33

def move_solo_to_the_end
  solo = @pairs.find { |pair| pair.any? { |person| person.name == "Han Solo" } }
  return @pairs unless solo
  index = @pairs.index(solo)
  @pairs[index], @pairs[-1] = @pairs[-1], @pairs[index]
  @pairs
end

#nope(p1, p2) ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 41

def nope(p1,p2)
  pair = [p1, p2].sort
  @nopes << pair
end

#possible_pairs ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 29

def possible_pairs
  @matrix.possible_pairs.reject { |pairing| pairing.any? { |pair| @nopes.include?(pair) }}
end

#resistance(person1, person2, resistance) ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 67

def resistance(person1, person2, resistance)
  @matrix[person1, person2].resistance = resistance
end

#revert ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 55

def revert
  @pairs = @last_pairs
end

#save_pairs ⇒ Object 



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# File 'lib/pairity/pair_generator.rb', line 46

def save_pairs
  @pairs.each do |pair|
    @matrix.add_weight_to_pair(1, pair)
    @matrix.add_day_to_pair(pair)
  end
  @nopes = []
  @last_pairs = @pairs
end