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Tiger Level #24

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70 changes: 45 additions & 25 deletions blackjack.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ def value
end

def to_s
"#{@value}-#{suit}"
"#{@value}#{suit}"
end

end
Expand All @@ -29,7 +29,7 @@ def initialize

def self.build_cards
cards = []
[:clubs, :diamonds, :spades, :hearts].each do |suit|
[:C, :D, :S, :H].each do |suit|
(2..10).each do |number|
cards << Card.new(suit, number)
end
Expand All @@ -42,8 +42,8 @@ def self.build_cards
end

class Hand
attr_reader :cards

attr_reader :cards, :player_hand, :dealer_hand
def initialize
@cards = []
end
Expand All @@ -55,6 +55,10 @@ def value
cards.inject(0) {|sum, card| sum += card.value }
end

def bust?
value > 21
end

def play_as_dealer(deck)
if value < 16
hit!(deck)
Expand All @@ -73,8 +77,12 @@ def initialize
2.times { @dealer_hand.hit!(@deck) }
end

def hit
@player_hand.hit!(@deck)
def hit
if player_hand.bust?
stand
else
@player_hand.hit!(@deck)
end
end

def stand
Expand All @@ -91,6 +99,7 @@ def status
end

def determine_winner(player_value, dealer_value)
puts status
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In general, probably don't want to leave puts in your code

return :dealer if player_value > 21
return :player if dealer_value > 21
if player_value == dealer_value
Expand All @@ -107,35 +116,34 @@ def inspect
end
end


describe Card do

it "should accept suit and value when building" do
card = Card.new(:clubs, 10)
card.suit.should eq(:clubs)
card = Card.new(:C, 10)
card.suit.should eq(:C)
card.value.should eq(10)
end

it "should have a value of 10 for facecards" do
facecards = ["J", "Q", "K"]
facecards.each do |facecard|
card = Card.new(:hearts, facecard)
card = Card.new(:H, facecard)
card.value.should eq(10)
end
end
it "should have a value of 4 for the 4-clubs" do
card = Card.new(:clubs, 4)
it "should have a value of 4 for the 4C" do
card = Card.new(:C, 4)
card.value.should eq(4)
end

it "should return 11 for Ace" do
card = Card.new(:diamonds, "A")
card = Card.new(:D, "A")
card.value.should eq(11)
end

it "should be formatted nicely" do
card = Card.new(:diamonds, "A")
card.to_s.should eq("A-diamonds")
card = Card.new(:D, "A")
card.to_s.should eq("AD")
end
end

Expand All @@ -156,16 +164,16 @@ def inspect
describe Hand do

it "should calculate the value correctly" do
deck = mock(:deck, :cards => [Card.new(:clubs, 4), Card.new(:diamonds, 10)])
deck = mock(:deck, :cards => [Card.new(:C, 4), Card.new(:D, 10)])
hand = Hand.new
2.times { hand.hit!(deck) }
hand.value.should eq(14)
end

it "should take from the top of the deck" do
club4 = Card.new(:clubs, 4)
diamond7 = Card.new(:diamonds, 7)
clubK = Card.new(:clubs, "K")
club4 = Card.new(:C, 4)
diamond7 = Card.new(:D, 7)
clubK = Card.new(:C, "K")

deck = mock(:deck, :cards => [club4, diamond7, clubK])
hand = Hand.new
Expand All @@ -176,32 +184,42 @@ def inspect

describe "#play_as_dealer" do
it "should hit blow 16" do
deck = mock(:deck, :cards => [Card.new(:clubs, 4), Card.new(:diamonds, 4), Card.new(:clubs, 2), Card.new(:hearts, 6)])
deck = mock(:deck, :cards => [Card.new(:C, 4), Card.new(:D, 4), Card.new(:C, 2), Card.new(:H, 6)])
hand = Hand.new
2.times { hand.hit!(deck) }
hand.play_as_dealer(deck)
hand.value.should eq(16)
end
it "should not hit above" do
deck = mock(:deck, :cards => [Card.new(:clubs, 8), Card.new(:diamonds, 9)])
deck = mock(:deck, :cards => [Card.new(:C, 8), Card.new(:D, 9)])
hand = Hand.new
2.times { hand.hit!(deck) }
hand.play_as_dealer(deck)
hand.value.should eq(17)
end
it "should stop on 21" do
deck = mock(:deck, :cards => [Card.new(:clubs, 4),
Card.new(:diamonds, 7),
Card.new(:clubs, "K")])
deck = mock(:deck, :cards => [Card.new(:C, 4),
Card.new(:D, 7),
Card.new(:C, "K")])
hand = Hand.new
2.times { hand.hit!(deck) }
hand.play_as_dealer(deck)
hand.value.should eq(21)
end
end
describe "#bust" do
it "should stand for the player if they bust" do
deck = mock(:deck, :cards => [Card.new(:C, 5),
Card.new(:D, 7),
Card.new(:C, 10)])
hand = Hand.new
3.times { hand.hit!(deck) }
hand.bust?
hand.value.should eq(22)
end
end
end


describe Game do

it "should have a players hand" do
Expand Down Expand Up @@ -240,3 +258,5 @@ def inspect
end
end
end