Reference no: EM132296695

Now, you want to play a game, inspired by Werewolf, with a group of your friends. A Player can either be a Werewolf, or a Villager. In this game, you can have 4 or more players. The first 2 players are automatically designated to be Werewolves, while everyone else is assigned to be a Villager. One play of the game involves all of the players voting for a player who they believe to be a Werewolf; in this implementation, all players, except yourself, arbitrarily vote for themselves. At the end of each play, the player with the most votes is removed from the game. Each play of the game alternates between daytime and nighttime. If it is nighttime, only votes by werewolves count.

The game ends when there are no werewolves left, which means the villagers won, or when there are more werewolves than villagers, which means the werewolves have won.

However, there are bugs in the code for the game! Read through the code and fix all of the bugs so that the game can work properly. As hint, there are at least four bugs in the code! For this lab there is a hidden test. In other words, we will be running a test against your code that you don't have access to, so make sure to be thorough! You should not need to add any lines - only edit existing lines.

def get_most_common_element(lst):
    return max(set(lst), key=lst.count)

class Player:
    def __init__(self, name):
        self.name = name
        self.active = True

class Werewolf(Player):
    def __init__(self, name):
        Player.__init__(self, name)

    def reveal_player_type(self):
        print("You are a werewolf!")

class Villager(Player):
    def __init__(self, name):
        Villager.__init__(self, name)    

    def reveal_player_type(self):
        print("You are a villager!")

class Game:
    def __init__(self, players, your_name):
        """
        Sets the game up. players is a list of strings that are names of all 
        of the players. your_name is a string and must be one of the players.
        >>> game = Game(["a", "b", "c", "d", "e", "f"], "a")
        You are a werewolf!
        >>> game.your_name
        'a'
        >>> game.play("b")
        'Keep playing!'
        >>> len(game.werewolves)
        1
        >>> len(game.villagers)
        4
        >>> game.play("c")
        'Keep playing!'
        >>> game.play("d")
        'Keep playing!'
        >>> game.play("a")
        'Villagers win!'
        >>> game.werewolves
        []
        >>> len(game.villagers)
        2
        """
        if len(players) < 4:
            raise Exception("Not enough players!")
        names = players[0:2]
        self.your_name = your_name
        self.werewolves = [Werewolf(self, w) for w in names]
        self.villagers = [Villager(self, p) for p in players if p not in names]
        self.name_to_player = {}

        for werewolf in self.werewolves:
            self.name_to_player[werewolf.name] = werewolf

        for villager in self.villagers:
            self.name_to_player[villager.name] = villager

        player = self.name_to_player[your_name]
        player.reveal_player_type()

        self.state = "night"

    def play(self, vote):
        """
        While the game is still being played, make a move. vote is the player 
        who you vote for, because you believe they are on the opposing team. 
        You can continue playing until either the villagers or the werewolves win.
        """
        self.make_move(vote)
        if not self.check_if_end_of_game():
            return "Keep playing!"
        else:
            if len(self.werewolves) == 0:
                return "Villagers win!"
            elif len(self.werewolves) > len(self.villagers):
                return "Werewolves win!"

    def make_move(self, vote):
        """
        Every player votes (players arbitrarily vote for themselves). Then, 
        if the state of the game is day, remove the player with the most votes 
        overall, and set the state to night. If the state of the game is night, 
        remove the player with the most votes by werewolves, and set the state to day.
        """
        votes = []
        werewolf_votes = []

        if self.state == "night":
            werewolf_votes.append(vote)
        votes.append(vote)

        for player in self.name_to_player:
            if self.state == "night" and isinstance(player, Werewolf(name)):
                werewolf_votes.append(player)
            votes.append(player)

        if self.state == "day":
            majority_vote = get_most_common_element(votes)
            self.state = "night"
        elif self.state == "night":
            majority_vote = get_most_common_element(werewolf_votes)
            self.state = "day"

        if majority_vote in self.name_to_player:
            self.remove_player(majority_vote)
        else:
            raise Exception("Invalid player.")

    def remove_player(player_to_remove):
        """
        Set the player with the majority vote to inactive, and remove it from 
        its respective list of players.
        """
        player = self.name_to_player[player_to_remove]
        self.active = False

        if player in self.werewolves:
            self.werewolves.remove(player)
        elif player in self.villagers:
            self.villagers.remove(player)
        else:
            print("Player already removed!")

    def check_if_end_of_game(self):
        """
        Returns True if the game is over, and False if it is not. The game is over when 
        there are no werewolves remaining, or if there are more werewolves than villagers.
        """

        if len(Game.werewolves) == 0:
            return True
        elif len(Game.werewolves) > len(Game.villagers):
            return True
        else:
            return False