多人交互游戏特价

class GamePromotion:
    def __init__(self, game_name, original_price, discount_rate, start_date, end_date):
        self.game_name = game_name
        self.original_price = original_price
        self.discount_rate = discount_rate
        self.start_date = start_date
        self.end_date = end_date

    def is_active(self, current_date):
        return self.start_date <= current_date <= self.end_date

    def get_discounted_price(self, current_date):
        if self.is_active(current_date):
            return self.original_price * (1 - self.discount_rate)
        else:
            return self.original_price

# 示例使用
from datetime import datetime

promotion = GamePromotion(
    game_name="ExampleGame",
    original_price=60,
    discount_rate=0.2,
    start_date=datetime(2023, 10, 1),
    end_date=datetime(2023, 10, 7)
)

today = datetime.now()
print(f"Today's price for {promotion.game_name}: ${promotion.get_discounted_price(today)}")