class GoalOnes:
    "One point for each one"
    used = False

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Ones ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 1:
                total += 1
        return total

class GoalTwos:
    "Two points for each two"
    used = False

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Twos ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 2:
                total += 2
        return total

class GoalThrees:
    "Three points for each three"
    used = False

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Threes ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 3:
                total += 3
        return total

class GoalFours:
    "Four points for each four"
    used = False

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Fours ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 4:
                total += 4
        return total
    
class GoalThreeOfAKind:
    "add all dice, if all three dice have the same number"
    used = False
    def is_three_of_a_kind(self, dice):
        if sum([d.face == dice[0].face for d in dice]) == 3:
            return True
        if sum([d.face == dice[1].face for d in dice]) == 3:
            return True
        if sum([d.face == dice[2].face for d in dice]) == 3:
            return True
        return False
    
    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Three of a kind ({potential_score})"

    def score(self, dice):
        total = 0
        if self.is_three_of_a_kind(dice):
            total = sum([d.face for d in dice])
        return total
    
class GoalYahtzee:
    """50 points if all the dice are all the same numbers"""
    used = False
    def is_Yahtzee(self, dice):
        if sum([d.face == dice[0].face for d in dice]) == 5:
            return True
        return False
    
    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Yahtzee ({potential_score})"

    def score(self, dice):
        total = 0
        if self.is_Yahtzee(dice):
            total = 50
        return total