橋接模式(bridge結構模式）c#

橋接模式(bridge結構模式）c#

橋接模式(bridge結構模式）c#簡單例子

在前面的玩家中每增加一個行為，就必須在每個玩家中都增加，通過橋接模式將行為提取出來了，減少變化

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 adapterpattern
{
    public partial class bridge : Form
    {
        public bridge()
        {
            InitializeComponent();
        }

        private void btnDisplay_Click(object sender, EventArgs e)
        {
            play p1 = new play1();
            p1.setPlayAction(new move());
            p1.run();
            this.listBox1.Items.Add(p1.playstring);
            play p2 = new play2();
            p2.setPlayAction(new jump());
            p2.run();
            this.listBox1.Items.Add(p2.playstring);
        }
    }
    //意圖(Intent）將抽象部分與實現部分分離，使它們都可以獨立地變化。
    public abstract class play//抽象部分
    {
        public string playstring { get; set; }
        protected playAction pa;
        public void setPlayAction(playAction pa)//使用組合
        {
            this.pa = pa;
        }
        public abstract void action();//抽象部分變化
        public void run()
        {
            pa.action();//執行實現部分
            action();
        }
    }
    public class play1 : play
    {
        public override void action()
        {
            playstring = "play1" + pa.actionstring;
        }
    }
    public class play2 : play
    {
        public override void action()
        {
            playstring = "play2" + pa.actionstring;

        }
    }
    public abstract class playAction//對實現部分進行抽象
    {
        public string actionstring;
        public abstract void action();
    }
    public class move : playAction//實現玩家移動行為
    {
        public override void action()
        {
            actionstring = "move";
        }
    }
    public class jump : playAction//實現玩家跳躍行為
    {
        public override void action()
        {
            actionstring = "jump";
        }
    }
}