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Contents
class KlondikeSolitaire
module Model
class ColumnPile
include Glimmer::DataBinding::ObservableModel
attr_reader :count
def initialize(game, count)
@game = game
@count = count
reset!
end
def reset!
playing_cards.clear
populate!(count.times.map { @game.deck.pop })
notify_observers(:playing_cards)
end
# this method does not validate
def populate!(new_playing_cards)
new_playing_cards.each_with_index do |playing_card, index|
playing_card.hidden = true if index < (new_playing_cards.size - 1)
playing_cards.push(playing_card)
end
end
# this method validates that playing card fits at the bottom of the column (opposite color and one number smaller)
# throws an error if it does not fit
def add!(new_playing_card)
bottom_card = playing_cards.last
if (playing_cards.empty? && new_playing_card.rank == 13) ||
(new_playing_card.color != bottom_card.color && new_playing_card.rank == (bottom_card.rank - 1))
playing_cards.push(new_playing_card)
else
raise "Cannot add #{new_playing_card} to #{self}"
end
end
def remove!(card)
remove_cards_starting_at(playing_cards.index(card)).tap do |result|
playing_cards.last&.hidden = false
end
end
def remove_cards_starting_at(index)
removed_cards = playing_cards[index...playing_cards.size]
playing_cards[index...playing_cards.size] = []
removed_cards
end
def playing_cards
@playing_cards ||= []
end
def to_s
"Column Pile #{count} (#{playing_cards.map {|card| "#{card.rank}#{card.suit.to_s[0].upcase}"}.join(" | ")})"
end
end
end
end
Version data entries
32 entries across 32 versions & 1 rubygems