[Code Review] Team 10 - Hw04

Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApp
{

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();            
        }
        CardDeck deck;

        private void btn_combox_Click(object sender, EventArgs e)
        {            
            if (deck == null)
            {
                deck = new CardDeck();
                deck.CreateDeck();
            }
            txt_Message.Clear();
            switch (cbox_Select.SelectedIndex)
            {
                case 0:
                    txt_Message.AppendText("Combox 按花色排列 已被選定" + "\n");
                    deck.ResetDeck();
                    ShowDeck();
                    break;
                case 1:
                    txt_Message.AppendText("Combox 亂數排列 已被選定" + "\n");
                    deck.Shuffle();
                    ShowDeck();
                    break;
                case 2:
                    txt_Message.AppendText("Combox 按點數大小 已被選定" + "\n");
                    deck.OrderByRank();
                    ShowDeck();
                    break;
            }
        }       

        private void btn_CheckboxTest_Click(object sender, EventArgs e)
        {
            if (deck == null)
            {
                deck = new CardDeck();
                deck.CreateDeck();
            }
            txt_Message.Clear();
            if (chk_Reset.Checked)
            {
                txt_Message.AppendText("Checkbox 按花色排列 已被選定" + "\n");
                deck.ResetDeck();
                ShowDeck();
            }
            if (chk_Shuffle.Checked)
            {

                txt_Message.AppendText("Checkbox 亂數排列 已被選定" + "\n");
                deck.Shuffle();
                ShowDeck();
            }
            if (chk_OrderByRank.Checked)
            {
                txt_Message.AppendText("Checkbox 按點數大小 已被選定" + "\n");
                deck.OrderByRank();
                ShowDeck();
            }
        }

        private void ShowDeck()
        {
            string Msg_txt = "";
            for (int i = 0; i < 52; i++)
            {
                Msg_txt += "  " + deck.Cards[i].RankToStr() + deck.Cards[i].SuitToUnicode();
                if ((i + 1) % 13 == 0)
                {
                    Msg_txt += "\n";
                }
            }
            MessageBox.Show(Msg_txt);
        }
    }
}

CardDeck.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WindowsFormsApp
{
    public class CardDeck
    {
        public PokerCard[] Cards = new PokerCard[52];
        private Random rand = new Random();
        
        public void CreateDeck() //產生出52個PokerCard的物件
        {
            for (int i = 0; i < 52; i++)
                Cards[i] = new PokerCard();            
        }
        public void ResetDeck() //牌堆回復原始狀態
        {
            for (int i = 0; i < 52; i++)
            {
                Cards[i].Rank = i % 13 + 1;
                Cards[i].Suit = i / 13 ;
            }
        }
        public void Shuffle() //洗牌
        {
            for (int i = 0; i < 52; i++)
            {
                int card1 = rand.Next(52);
                ChangeTwoCards(i, card1);
            }
        }
        public void OrderByRank() //按點數大小排列
        {
            for (int i = 0,num=0; i < 13; i++)
            {
                for (int j = 0; j < 4; j++, num++)
                {
                    Cards[num].Rank = i + 1;
                    Cards[num].Suit = j ;
                }
            }
        }
        private void ChangeTwoCards(int card1, int card2)
        {
            PokerCard temp = new PokerCard();

            temp = Cards[card1];
            Cards[card1] = Cards[card2];
            Cards[card2] = temp;
        }
    }
}

PokerCard.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WindowsFormsApp
{
    public class PokerCard
    {
        public int Suit;  //花色
        public int Rank;  //點數

        public string RankToStr()  //將點數轉為字串
        {
            if (Rank == 1)
                return "A";
            else if (Rank == 11)
                return "J";
            else if (Rank == 12)
                return "Q";
            else if (Rank == 13)
                return "K";
            else
                return Convert.ToString(Rank);
        }
        public string SuitToUnicode()  //將花色轉為unicode
        {
            switch (Suit)
            {
                case 0: //愛心
                    return ((char)0x2665).ToString(); 
                case 1: //菱形
                    return ((char)0x2666).ToString(); 
                case 2: //梅花
                    return ((char)0x2663).ToString(); 
                case 3: //黑桃
                    return ((char)0x2660).ToString(); 
                default:
                    return "";
            }            
        }
    }
}