Class: DeckObject

Inherits:
Object
  • Object
show all
Defined in:
lib/ttr/objects/deck.rb

Overview

Copyright © 2011 Jesse Sielaff

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DeckObject

Returns a new instance of DeckObject.



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# File 'lib/ttr/objects/deck.rb', line 7

def initialize
  @draw_pile = []
  @selection = []
  @discard_pile = 14.times.map { CardObject.new(:wild) }
  
  %w:black blue green orange pink red white yellow:.each do |color|
    @discard_pile.concat(12.times.map { CardObject.new(color.to_sym) })
  end
end

Instance Method Details

#available_colors ⇒ Object

Returns an Array of the colors of the Cards in the selection.



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# File 'lib/ttr/objects/deck.rb', line 19

def available_colors
  @selection.map {|card| card.color }
end

#discard(card) ⇒ Object

Moves the given Card to the discard pile.



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# File 'lib/ttr/objects/deck.rb', line 25

def discard (card)
  @discard_pile << card
end

#draw ⇒ Object

Returns the top Card of the Deck, shuffling first if necessary. If there are no Cards left in the Deck, returns nil.



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# File 'lib/ttr/objects/deck.rb', line 32

def draw
  if @draw_pile.empty?
    @draw_pile.replace(@discard_pile.shuffle)
    @discard_pile.clear
  end
  
  @draw_pile.pop
end

#empty? ⇒ Boolean

Returns true if there are no Cards remaining in the Deck, false otherwise.

Returns:

  • (Boolean) 


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# File 'lib/ttr/objects/deck.rb', line 43

def empty?
  (@draw_pile + @discard_pile + @selection).empty?
end

#fill_selection ⇒ Object

Moves Cards from the draw pile to the selection (shuffling when necessary) until the selection contains 5 Cards, or as many Cards as are left in the Deck. If there are ever 3 wild Cards showing (and at least 3 non-wild cards left in the Deck), moves the selection Cards to the discard pile and attempts to fill the selection again.



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# File 'lib/ttr/objects/deck.rb', line 53

def fill_selection
  until @selection.length > 4
    return unless card = draw
    @selection << card
    
    if (@selection.count {|card| card.color == :wild } >= 3) && ((@draw_pile + @discard_pile + @selection).count {|card| card.color != :wild } > 2)
      @selection.each {|card| discard(card) }
      @selection.clear
    end
  end
end

#select(color) ⇒ Object

Removes a Card of the given color from the selection, refills the selection, then returns the Card. If no Card of the given color is found, returns nil.



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# File 'lib/ttr/objects/deck.rb', line 68

def select (color)
  if index = @selection.index {|card| card.exact_match?(color) }
    card = @selection.delete_at(index)
    fill_selection
    card
  end
end

#wilds_only? ⇒ Boolean

Returns true if the deck is empty except for wild Cards in the selection.

Returns:

  • (Boolean) 


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# File 'lib/ttr/objects/deck.rb', line 78

def wilds_only?
  (@draw_pile + @discard_pile).empty? && @selection.all? {|card| card.color == :wild }
end