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FlashCards - Iteration 2
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Iteration 2
Storing Cards in a Deck
Create a Deck class with an accompanying test file. A Deck is initialized with an array of Card objects. A Deck should also be able to return cards based on a given category. The Deck class should respond to the following interaction pattern:
pry(main)> require './lib/card'
#=> true
pry(main)> require './lib/deck'
#=> true
pry(main)> card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
#=> #<Card:0x00007fa16104e160 @answer="Juneau", @question="What is the capital of Alaska?", @category=:Geography>
pry(main)> card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
#=> #<Card:0x00007fa160a62e90 @answer="Mars", @question="The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", @category=:STEM>
pry(main)> card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
#=> #<Card:0x00007fa161a136f0 @answer="North north west", @question="Describe in words the exact direction that is 697.5° clockwise from due north?", @category=:STEM>
pry(main)> cards = [card_1, card_2, card_3]
pry(main)> deck = Deck.new(cards)
#=> #<Deck:0x00007fa160a38ed8...>
pry(main)> deck.cards
#=> [#<Card:0x00007fa16104e160...>, #<Card:0x00007fa160a62e90...>, #<Card:0x00007fa161a136f0...>]
pry(main)> deck.count
#=> 3
pry(main)> deck.cards_in_category(:STEM)
#=> [#<Card:0x00007fa160a62e90...>, #<Card:0x00007fa161a136f0...>]
pry(main)> deck.cards_in_category(:Geography)
#=> [#<Card:0x00007fa16104e160...>]
pry(main)> deck.cards_in_category("Pop Culture")
#=> []
The Round
A Round will be the object that processes responses and records guesses. A Round is initialized with a Deck. The idea is that when we start a Round, the current card is the first in the deck (the first in the Deck’s array of Cards). When we make a guess, the guess is recorded, and the next card in the deck becomes the current card.
The take_turn method is the crux of this problem. The take_turn method takes a string representing the guess. It should create a new Turn object with the appropriate guess and Card. It should store this new Turn, as well as return it from the take_turn method. Also, when the take_turn method is called, the Round should move on to the next card in the deck.
A Round should respond to the following interaction pattern:
pry(main)> require './lib/card'
#=> true
pry(main)> require './lib/turn'
#=> true
pry(main)> require './lib/deck'
#=> true
pry(main)> require './lib/round'
#=> true
pry(main)> card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
#=> #<Card:0x00007fa16104e160 @answer="Juneau", @question="What is the capital of Alaska?", @category=:Geography>
pry(main)> card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
#=> #<Card:0x00007fa160a62e90 @answer="Mars", @question="The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", @category=:STEM>
pry(main)> card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
#=> #<Card:0x00007fa161a136f0 @answer="North north west", @question="Describe in words the exact direction that is 697.5° clockwise from due north?", @category=:STEM>
pry(main)> deck = Deck.new([card_1, card_2, card_3])
#=> #<Deck:0x00007fa160a38ed8...>
pry(main)> round = Round.new(deck)
#=> #<Round:0x00007f972a1c7960...>,
pry(main)> round.deck
#=> #<Deck:0x00007fa160a38ed8...>
pry(main)> round.turns
#=> []
pry(main)> round.current_card
#=> #<Card:0x00007fa16104e160 @answer="Juneau", @question="What is the capital of Alaska?", @category=:Geography>
pry(main)> new_turn = round.take_turn("Juneau")
#=> #<Turn:0x00007f99842f09e8 @card=#<Card:0x00007f800e29f0c9 @question=""What is the capital of Alaska?", @answer="Juneau", @category=:Geography>, @guess="Juneau">
pry(main)> new_turn.class
#=> Turn
pry(main)> new_turn.correct?
#=> true
pry(main)> round.turns
#=> [#<Turn:0x00007f99842f09e8 @card=#<Card:0x00007f800e29f0c9 @question=""What is the capital of Alaska?", @answer="Juneau", @category=:Geography>, @guess="Juneau">]
pry(main)> round.number_correct
#=> 1
pry(main)> round.current_card
#=> #<Card:0x00007fa160a62e90 @answer="Mars", @question="The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", @category=:STEM>
pry(main)> round.take_turn("Venus")
#=> #<Turn:0x00007f972a215b38...>
pry(main)> round.turns.count
#=> 2
pry(main)> round.turns.last.feedback
#=> "Incorrect."
pry(main)> round.number_correct
#=> 1
pry(main)> round.number_correct_by_category(:Geography)
#=> 1
pry(main)> round.number_correct_by_category(:STEM)
#=> 0
pry(main)> round.percent_correct
#=> 50.0
pry(main)> round.percent_correct_by_category(:Geography)
#=> 100.0
pry(main)> round.current_card
#=> #<Card:0x00007fa161a136f0 @answer="North north west", @question="Describe in words the exact direction that is 697.5° clockwise from due north?", @category=:STEM>
