如何最好地创建具有嵌套枚举的Uno卡片和卡组

enum CardType {
    case number(Int)
    case skip
    case reverse
    case drawTwo
    // 其他特殊功能卡片
}

enum CardColor {
    case red
    case blue
    case green
    case yellow
}

enum UnoCard {
    case regular(CardColor, CardType)
    case wild
    case wildDrawFour
}

struct UnoCard {
    let color: CardColor
    let type: CardType
}

class UnoDeck {
    var cards: [UnoCard] = []

    init() {
        // 初始化卡组，添加所有卡片
        for color in [CardColor.red, .blue, .green, .yellow] {
            // 添加数字卡片
            for number in 0...9 {
                cards.append(UnoCard(color: color, type: .number(number)))
            }
            // 添加特殊功能卡片
            cards.append(UnoCard(color: color, type: .skip))
            cards.append(UnoCard(color: color, type: .reverse))
            cards.append(UnoCard(color: color, type: .drawTwo))
            // 其他特殊功能卡片
        }
        // 添加Wild卡片
        cards.append(UnoCard(color: .wild, type: .wild))
        cards.append(UnoCard(color: .wild, type: .wildDrawFour))
    }

    // 其他方法，如洗牌、发牌等
}

let deck = UnoDeck()
print(deck.cards) // 打印卡组中的所有卡片