系統開發-01初始化

2024/11/06閱讀時間約 19 分鐘

我們將之前寫過的發牌程式碼與撲克牌圖片，並新增Player類別，套到上一篇的程式框架內

Default.aspx如下

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    <style>
        /*撲克牌圖片顯示在網頁上的尺寸大小*/
        img {
            width:100px;
            height:145px;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <table border="1" style="border-collapse:collapse">
                <tr>
                    <td>牌堆</td>
                    <td>
                        <asp:Label ID="lab_deck" runat="server" Text=""></asp:Label>
                    </td>
                </tr>
                <tr>
                    <td>莊家</td>
                    <td>
                        <asp:Label ID="lab_dealer" runat="server" Text=""></asp:Label>
                    </td>
                </tr>
                <tr>
                    <td>玩家</td>
                    <td>
                        <asp:Label ID="lab_player" runat="server" Text=""></asp:Label>
                    </td>
                </tr>
                <tr>
                    <td colspan="2">
                        <asp:Label ID="lab_msg" runat="server" Text=""></asp:Label>
                    </td>
                </tr>
                <tr>
                    <td colspan="2">
                        <asp:Button ID="btn_hit" runat="server" Text="要牌(Hit)" OnClick="btn_hit_Click" />
                        <asp:Button ID="btn_stand" runat="server" Text="停牌(Stand)" OnClick="btn_stand_Click" />
                        <asp:Button ID="btn_newgame" runat="server" Text="新牌局" OnClick="btn_newgame_Click" />
                    </td>
                </tr>
            </table>
        </div>
    </form>
</body>
</html>

Default.aspx.cs如下

public partial class _Default : System.Web.UI.Page
{
    Deck deck;      //排堆
    Player dealer;  //莊家
    Player player;  //玩家

    protected void Page_Load(object sender, EventArgs e)
    {
        ResetGame();

        UpdateUI();
    }

    protected void ResetGame() {        //初始化遊戲參數與動作(初始發牌)
        deck = new Deck();
        dealer = new Player();
        player = new Player();

        //初始發牌
        DrawForPlayer();
        DrawForDealer();
        DrawForPlayer();
        DrawForDealer();

        //清空label內容
        lab_deck.Text = "";
        lab_dealer.Text = "";
        lab_player.Text = "";
    }

    protected void UpdateUI()
    {
        lab_deck.Text = deck.ShowCards();

        //顯示玩家手牌
        for (int i = 0; i < player.cards.Count; i++)
        {
            lab_player.Text += $"<img src='./images/{player.cards[i].Rank}-{player.cards[i].Suit}.png'>";
        }

        //顯示莊家手牌
        for (int i = 0; i < dealer.cards.Count; i++)
        {
            lab_dealer.Text += $"<img src='./images/{dealer.cards[i].Rank}-{dealer.cards[i].Suit}.png'>";
        }
    }

    //發牌給莊家
    protected void DrawForDealer() {
        Card c = deck.DrawCard();
        dealer.AddCard(c);          //加到手牌
    }

    //發牌給玩家
    protected void DrawForPlayer() {
        Card c = deck.DrawCard();
        player.AddCard(c);          //加到手牌
    }

    //按鈕OnClick後觸發
    //玩家要牌，呼叫DrawForPlayer()
    protected void btn_hit_Click(object sender, EventArgs e)
    {
        DrawForPlayer();
    }

    //玩家停牌，換莊家要牌DrawForDealer()，直到計分比較輸贏
    protected void btn_stand_Click(object sender, EventArgs e)
    {
        DrawForDealer();
    }

    //新牌局(下一回合)，呼叫NextRound()
    protected void btn_newgame_Click(object sender, EventArgs e)
    {
        ResetGame();
    }

    protected void NextRound() { }						//下一回合，呼叫ResetGame()
}

public class Player
{
    public List<Card> cards { get; private set; }

    public Player()
    {
        cards = new List<Card>();
        Init();
    }

    public void Init()
    {
        cards.Clear();
    }

    public void AddCard(Card card)
    {
        cards.Add(card);
    }
}

public class Deck
{
    private Card[] cards;           //牌堆(只能透過DrawCard取得，所以設定private)
    private int dealIndex = 0;  //發牌順序
    string[] suitNames = { "黑桃", "紅心", "方塊", "梅花" };

    public Deck() {                 //建立類別
        cards = new Card[52];
        string[] suits = { "S", "H", "D", "C" };

        int index = 0;

        for (int i = 0; i < suits.Length; i++)   //四種花色
        {
            for (int j = 1; j <= 13; j++)    //一種花色13張牌1-13
            {
                cards[index] = new Card(suits[i], suitNames[i], j);   //初始化
                index++;
            }
        }

        Init();
    }

    public void Init()
    {
        BubbleSort(cards);  //復原順序
        Shuffle(cards);     //重新洗牌
        dealIndex = 0;      //回復預設值
    }

    //發牌
    public Card DrawCard()
    {
        Card card = null;

        if (dealIndex < cards.Length)
        {
            card = cards[dealIndex];
        }
        //超出一副牌的52張數量

        dealIndex += 1;
        return card;  // 回傳抽到的牌
    }

    void Shuffle(Card[] cards) {         //洗牌(生成時，自動洗牌，所以不需要設定public)
        Random rand = new Random();

        for (int i = 0; i < cards.Length; i++)
        {
            int j = rand.Next(cards.Length);    //// 產生一個隨機索引 0-51

            //例如：
            // i=0, j=12，表示第一張牌 (cards[0] 黑桃1) 與第13張牌 (cards[12]黑桃13) 互換
            // 互換後的結果為，第一張牌 (cards[0] 黑桃13，第13張牌 (cards[12]黑桃1)
            // 一直換52次(每一個位置的牌都換一次)
            Swap(cards, i, j);
        }
    }

    //將撲克牌順序由小到大排序
    void BubbleSort(Card[] cards)
    {
        for (int i = 0; i < cards.Length; i++)
        {
            for (int j = 0; j < cards.Length - 1; j++)    //反過來就是由大到小排序
            {
                if (cards[j].Seq > cards[j + 1].Seq)
                {
                    Swap(cards, j, j + 1);
                }
            }
        }
    }

    //陣列中兩個元素交換，通過暫存變數的方式來實現交換
    void Swap(Card[] cards, int i, int j)
    {
        Card tmp = cards[i];    //將 cards[i] 的值暫存到 temp
        cards[i] = cards[j];    //將 cards[j] 的值賦給 cards[i]
        cards[j] = tmp;         //將剛才暫存的 tmp 值賦給 cards[j]
    }

    public string ShowCards()
    {
        string str = string.Empty;

        for (int i = 0; i < cards.Length; i++)
        {
            if (i % 13 == 0)   //13張牌排成一行
            {
                str += $"<br>{cards[i].ToString()}"; //換行
            }
            else
            {
                str += $"，{cards[i].ToString()}";      //自訂顯示方式
            }
        }

        return str;
    }
}

public class Card
{
    public string Suit { get; set; }    // 花色
    public string SuitName { get; set; }  // 花色名稱，為了顯示排堆時方便辨識
    public int Rank { get; set; }       // 點數
    public int Seq { get; set; }  // 順序

    public Card(string suit, string SuitName, int rank) {
        this.Suit = suit;
        this.SuitName = SuitName;
        this.Rank = rank;
    }	//建立類別

    // 顯示卡片的文字表示
    public override string ToString()
    {
        return $"{Rank} of {SuitName}";
    }
}