Randomizer script to provide options based on user and priority

[deanhystad]

Something like this?

import random
import collections
 
ALL_GAMES = [
    "Candyland",
    "COD",
    "Connect 4",
    "Life",
    "Monopoly",
    "Risk",
    "Skippo",
    "Uno",
    "Yahtzee"
]
 
class GamerMeta(type):
    """So we can do Gamer[player_name]"""
    def __getitem__(cls, name):
        return cls.Gamers[name]
 
class Gamer(metaclass=GamerMeta):
    Gamers = {}  # Dictionary of all players choices
 
    def __init__(self, name, games):
        """Create Gamer object.  Verify games choices"""
        for game in games:
            if game not in ALL_GAMES:
                raise ValueError(f"{game} is not in our collection")
        self.name = name
        self.games = games
        self.Gamers[name] = self  # Add gamer to Gamers list
 
    def votes(self):
        """Get weighted game selections for this Gamer"""
        if self.games == ALL_GAMES:
            return ALL_GAMES  # Game catalog is not weighted
 
        # Weight gamer's choices.  First choice gets 5 votes, second 4 votes and so on.
        vote = []
        for game, weight in zip(self.games, [5, 4, 3, 2, 1]):
            vote += [game] * weight
        return vote

    @classmethod
    def cast_ballots(cls, gamers):
        """Collect votes from gamers"""
        ballots = []
        for gamer in gamers:
            ballots += cls.Gamers[gamer].votes()
        return ballots
 
    def __repr__(self):
        """Get string with info about this gamer"""
        return f"{self.name} games = {self.games}"

def random_choice(*gamers):
    """Randomly choose from "votes" for all of tonights gamers"""
    return random.choice(Gamer.cast_ballots(gamers))
 
def weighted_choice(*gamers):
    """
    Select favorite game as voted on by gamers.  If multiple games tie
    as the favorite, randomly select from those games
    """
    ballots = collections.Counter(Gamer.cast_ballots(gamers)).most_common()
    return random.choice([game[0] for game in ballots if game[1] == ballots[0][1]])
 
# Add gamers to the "database"
Gamer("Catalog", ALL_GAMES)
Gamer("Dad", ("Uno", "Monopoly", "Candyland")),
Gamer("Mom", ("Life", "Uno", "Connect 4")),
Gamer("Thing 1", ("COD", "Monopoly", "Skippo", "Risk", "Uno")),
Gamer("Thing 2", ("Yahtzee", "Skippo", "Uno", "Life"))
 
# Try some random combinations to see how it works.
print("Taking a chance")
print("Tonight we play", random_choice("Catalog"))
print("Tonight we play", random_choice("Thing 1", "Thing 2"))
print("Tonight we play", random_choice("Mom", "Dad"))
print("Tonight we play", random_choice("Mom", "Dad", "Thing 1", "Thing 2"))
print("Tonight we play", random_choice("Mom", "Thing 1", "Catalog"))
 
# Try some weighted combinations to see how it works.
print("\nStrict democracy in action")
print("Tonight we play", weighted_choice("Catalog"))
print("Tonight we play", weighted_choice("Thing 1", "Thing 2"))
print("Tonight we play", weighted_choice("Mom", "Dad"))
print("Tonight we play", random_choice("Mom", "Dad", "Thing 1", "Thing 2"))
print("Tonight we play", weighted_choice("Mom", "Thing 1", "Catalog"))

This program can randomly selects a game from "weighted" player selections or it can select the game with the most votes. Weighting and voting are done by giving a player's first choice 5 votes, their second choice 4 votes and so on. Randomly selecting a game from the weighted has the highest probability of picking the game with the most number of votes, but being random can also pick the game with the least.