import random

class player():
    def __init__(self, uno):
        self.game = uno
        self.hand = []
        self.turn = 0

    def play(self, card):
        #Play a card.
        #Can only play if the discard is the same number or color.
        if not card in self.hand:
            #Doesn't have that card.
            return 1

        if not self.turn:
            #Not your turn.
            return 2

        if card[0] == self.game.discard[0] or card[1] == self.game.discard[1]:
            #LEGAL.
            self.game.discard = card
            self.hand.remove(card)

            if len(self.game.players.keys()) > self.game.turn + 1:
                self.game.turn += 1
                nextplayer = self.game.players.keys()[self.game.turn]
                self.game.players[nextplayer].turn = 1

            else:
                self.game.turn = 0

            self.turn = 0

        else:
            #ILEGAL.
            return 3

class UNO():
    def __init__(self):
        self.players = {}
        self.gendeck()
        self.discard = ''
        self.turn = 0

    def gendeck(self):
        colors = ['r', 'g', 'b', 'y']
        cards = [str(num) for num in range(1,10)] #NUMBERS
        cards += ['r', 's', '+2'] #SPECIALS
        self.deck = [color+card for card in cards*2 for color in colors] + ['0'+color for color in colors] + ['w+4', 'w']*4
        random.shuffle(self.deck)

    def draw(self, num=1):
        #Draw some amount of cards.
        return [self.deck.pop() for x in range(0,num)]

    def addplayer(self, nick):
        #Add a player.
        if nick in self.players:
            return 1
        else:
            self.players[nick] = player(self)

    def start(self):
        #Start the game.
        if len(self.players) < 2:
            return 1

        #Lay down the discard.
        self.discard = self.draw()[0]

        #Deal the cards.
        for player in self.players:
            self.players[player].hand = self.draw(7)

        #Set the first players turn.
        firstplayer = self.players.keys()[0]
        self.players[firstplayer].turn = 1

    def currentplayer(self):
        #Shortcut to see who's turn it is.
        return self.players.keys()[self.turn]





if __name__ == '__main__':
    print "Making a new UNO game."
    unogame = UNO()
    #Adding players.
    unogame.addplayer('Blice')
    unogame.addplayer('moot')

    print "Starting the game."
    unogame.start()
    print "Current discard is: " + unogame.discard