C# 3주차 3일 수업 내용 : 이벤트 및 File (21.03.24)

대리자, 람다, 이벤트, LinQ 복습

 

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
    public delegate void GoHome();
    public delegate void Say(string message);
    class CarDriver
    {
        public static void GoLeft()
        {
            Console.WriteLine("좌회전");
        }
        public static void GoRight()
        {
            Console.WriteLine("우회전");
        }
        public static void GoForward()
        {
            Console.WriteLine("직진");
        }
    }
    public class Mic
    {
        public int Id { get; set; }
        //생성자
        public Mic(int Id)
        {
            this.Id = Id;
        }

        public void Speak(string message)
        {
            string str1 = message.Substring(0, 2);
            string str2 = message.Substring(2);
            if (this.Id > 50)
            {
                Console.WriteLine(message);
            }
            else
            {
                Console.WriteLine("{0}...{1}..", str1, str2); ;
            }
        }

    }

    public class App
    {
        public App()
        {
            Console.WriteLine("App");

            GoHome go = new GoHome(CarDriver.GoLeft);
            go += new GoHome(CarDriver.GoRight);
            go += new GoHome(CarDriver.GoForward);
            go += new GoHome(CarDriver.GoRight);
            go();

            Random rand = new Random();
            int num = rand.Next(1, 101);
            int num2 = rand.Next(1, 101);
            Mic mic1 = new Mic(num);
            Mic mic2 = new Mic(num2);
            Say say = new Say(mic1.Speak);
            say += new Say(mic2.Speak);
            say("안녕하세요");
        }
    }
}

로고 출력

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
    //대리자 선언
    public delegate void DelPrint(string msg);
    public delegate string DelPrintWithLogo(string logo, string msg);
    
    //프린터기
    public class Printer
    {
        //생성자
        public Printer()
        {

        }

        public void Print(string msg)
        {
            Console.WriteLine(msg);
        }

        public string PrintWithLogo(string logo, string message)
        {
            return logo + "\n" + message;
        }
    }

    public class App
    {
        public App()
        {
            Console.WriteLine("App");

            string message = "동해물과 백두산이...";
            //대리자 초기화
            Printer printer = new Printer();
            DelPrint delPrint1 = new DelPrint(printer.Print);
            delPrint1(message);

            //무명 메서드
            DelPrint delPrint2 = delegate (string msg)
            {
                Console.WriteLine("**** 무명 메서드 ****");
                Console.WriteLine(msg);
            };

            //대리자 호출
            delPrint2(message);

            //람다식
            DelPrint delPrint3 = (msg) =>
            {
                Console.WriteLine("**** 람다식 ****");
                Console.WriteLine(msg);
            };

            delPrint3(message);

            DelPrintWithLogo delPrint4 = new DelPrintWithLogo(printer.PrintWithLogo);
            string paper = delPrint4("@logo", "쥬라기 공원에 오신걸 환영합니다.");
            Console.WriteLine(paper);

            //람다식
            DelPrintWithLogo delPrint5 = (logo, msg) => string.Format("{0}\n{1}", logo, msg);
            string paper2 = delPrint5(@"MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNXKXWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWXko:'..:KMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNkc.      ,KMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNx,         cNMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMW0:          .OMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNx.          .xWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWk:.          'kWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMK;          .oKMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMO.       .,oKWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNX0Oxxddxxk0XNMMMMO'  ..,:dOKK0OkxdddxkO0XWMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMWXko:'..         .':okKK0OOOOOxo:'..         ..,cd0NMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMNkc.                    .',,,'..                    .'o0WMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMNx,                                                      .cOWMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMW0;                                                         .lXMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMWx.                                                        .cONMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMWx.                                                       .:0WMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMO'                                                       .dNMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMNc                                                       .kWMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMM0'                                                      .oWMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMx.                                                      '0MMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMWo                                                       ;XMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMWo                                                       ;XMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMWd.                                                      .OMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMk.                                                       cNMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMK,                                                       .oNMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMWl                                                         cKWMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMO.                                                         .oKWMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMNo                                                           .cONMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMK;                                                             'lKMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMO'                                                             ;KMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMWx.                                                           ,0MMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMWx.                                                         'OMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMWx.                                                       ,0WMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMWO,                                                     :KMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMK:                                                  .dNMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMNd.                                              .:0WMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMWKc.                                          .;kNMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMW0l.            .';codddddoc;..           .:ONMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWXkl;'...',cdkKNWMMMMMMMMMWX0xo:,'...,cxKWMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNXXXNWMMMMMMMMMMMMMMMMMMMMMWNXXNWMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM", "쥬라기 공원 입니다.");
            Console.WriteLine(paper2);
        }
    }
}

RCCar 이동

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
   
    //RCCar
    public class RCCar
    {
        public enum eDirection
        {
            FORWARD, BACKWARD, LEFT, RIGHT
        }
        public void Move(eDirection dir)
        {
            Console.WriteLine("{0}로 이동합니다.", dir);
        }

    }

    public class RemoteController
    {
        public delegate void DelMove(RCCar.eDirection dir);
        private RCCar car;
        public DelMove delMove;
        public RemoteController()
        {

        }

        public void Connect(RCCar car)
        {
            this.car = car;
            this.delMove = new DelMove(this.car.Move);
            Console.WriteLine("{0}와 연결되었습니다.", this.car);
        }

        public void Controll(RCCar.eDirection eDir)
        {
            this.delMove(eDir);
        }
    }

    public class App
    {
        public App()
        {
            Console.WriteLine("App");
            RCCar car = new RCCar();
            RemoteController controller = new RemoteController();
            controller.Connect(car);
            controller.Controll(RCCar.eDirection.FORWARD);
            controller.Controll(RCCar.eDirection.LEFT);
            controller.Controll(RCCar.eDirection.FORWARD);
            controller.Controll(RCCar.eDirection.RIGHT);
            controller.Controll(RCCar.eDirection.FORWARD);
            controller.Controll(RCCar.eDirection.BACKWARD);
        }
    }
}

Drone 이동

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
   
    //RCCar
    public class Drone
    {
        public enum eDirection
        {
            FLY, FORWARD, BACKWARD, LEFT, RIGHT, DOWN
        }
        public void Move(eDirection dir)
        {
            if(dir == eDirection.FLY)
            {
                Console.WriteLine("공중에 띄웁니다.");
            }
            else if(dir == eDirection.DOWN)
            {
                Console.WriteLine("지상으로 내려옵니다.");
            }
            else
            {
                Console.WriteLine("{0}로 이동합니다.", dir);
            }
        }
    }

    public class RemoteController
    {
        public delegate void DelMove(Drone.eDirection dir);
        private Drone drone;
        public DelMove delMove;
        public RemoteController()
        {

        }

        public void Connect(Drone drone)
        {
            this.drone = drone;
            Console.WriteLine("{0}와 연결되었습니다.", this.drone);
            this.delMove = new DelMove(this.drone.Move);
           
        }

        public void Controll(Drone.eDirection eDir)
        {
            if(eDir == Drone.eDirection.FLY)
            {
                Fly();
            }
            else if(eDir == Drone.eDirection.DOWN)
            {
                Down(eDir);
            }
            else
            {
                this.delMove(eDir);
            }
        }

        public void Fly()
        {
            this.delMove(Drone.eDirection.FLY);
            Console.WriteLine("비행을 시작합니다.");
        }

        public void Down(Drone.eDirection eDir)
        {
            this.delMove(Drone.eDirection.DOWN);
            Console.WriteLine("비행을 종료합니다.");
        }
    }

    public class App
    {
        public App()
        {
            Console.WriteLine("App");
            Drone drone = new Drone();
            RemoteController controller = new RemoteController();
            controller.Connect(drone);
            controller.Controll(Drone.eDirection.FLY);
            controller.Controll(Drone.eDirection.FORWARD);
            controller.Controll(Drone.eDirection.LEFT);
            controller.Controll(Drone.eDirection.FORWARD);
            controller.Controll(Drone.eDirection.RIGHT);
            controller.Controll(Drone.eDirection.FORWARD);
            controller.Controll(Drone.eDirection.BACKWARD);
            controller.Controll(Drone.eDirection.DOWN);
        }
    }
}

 

CallBack

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
    public class Unit
    {
        public enum eUnitType
        {
            VALTURE,
            TANK,
            GOLIATH
        }
        public Unit(eUnitType type)
        {
            Console.WriteLine("{0}이 생성되었습니다.", type);
        }
    }
    public class Factory
    {

        
        public Factory()
        {
            Console.WriteLine("팩토리가 생성되었습니다.");
        }

        public void CreateUnit(Unit.eUnitType type,Action<Unit> callback)
        {
            callback(new Unit(type));
        }
    }
    public class App
    {
        public App()
        {
            Console.WriteLine("App");
            Factory f = new Factory();
            f.CreateUnit(Unit.eUnitType.VALTURE, (unit) =>
            {
                Console.WriteLine(unit);    //Marine
            });
        }
    }
}

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
    public class Player
    {
        Backpack backpack = new Backpack(0);
        //생성자
        public Player()
        {

        }

        public void Init(Backpack backpack)
        {
            this.backpack = backpack;
            Console.WriteLine("플레이어가 가방을 획득합니다.");
        }
        public void InitItem(Item item)
        {
            Console.WriteLine("플레이어가 아이템을 획득합니다.");
            backpack.ItemGet(item);
        }

        public void ItemInfo()
        {
            backpack.ItemDataInfo();
        }

    }
    public class Item
    {
        public ItemData Data { get; set; }
        //생성자
        public Item(ItemData Data)
        {
            this.Data = Data;
        }

    }
    public  class ItemData
    {
        public int id;
        public string name;
        //생성자
        public ItemData(int id, string name)
        {
            this.id = id;
            this.name = name;
        }

    }
    public class Backpack
    {
        private List<Item> itemList = new List<Item>();
        private int id;
        //생성자
        public Backpack(int id)
        {
            this.id = id;
        }

        public void ItemGet(Item item)
        {
            itemList.Add(item);
        }

        public void ItemDataInfo()
        {
            foreach(Item item in itemList)
            {
                Console.WriteLine("아이템 목록 : {0} {1}", item.Data.id, item.Data.name);
            }
        }
    }
    public class App
    {
        public App()
        {
            Console.WriteLine("App");

            Func<int, Backpack> createBackpack = (id) =>
            {
                return new Backpack(id);
            };

            var backpack = createBackpack(100);
            Console.WriteLine(backpack);

            Player player = new Player();
            player.Init(backpack);
            ItemData data = new ItemData(100, "SCAR-L");
            Item item = new Item(data);

            player.InitItem(item);
            Func<Item, ItemData> lookItem = (Data) => {
                return item.Data;
            };

            ItemData itemData = lookItem(item);
            player.ItemInfo();

        }
    }
}

 

Func 연습

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
    
    public class App
    {
        public App()
        {
            Console.WriteLine("App");
            this.Print(this.GetLength, "안녕하세요");
            this.Print(this.GetLength, "Hello World");

        }
        private void Print(Func<string, int> func, string msg)
        {
            //대리자 호출
            int result = func(msg);
            Console.WriteLine(result);
        }

        private int GetLength(string str)
        {
            return str.Length;
        }
    }
}

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
    
    public class App
    {
        public App()
        {
            Console.WriteLine("App");
            var result = this.Calc(3, 5, (x, y) => 3 + 4);
            Console.WriteLine(result);

            var result1 = this.Calc(3, 5, (x, y) => 3 * 4);
            Console.WriteLine(result1);

        }
        public int Calc(int x, int y, Func<int, int, int> calc)
        {
            return calc(x, y);
        }
    }
}

 

Button Event

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
    public class Button
    {
        //이벤트 변수 선언 
        public event EventHandler onClick;

        public void OnMouseDown()
        {
            //대리자 호출 
            this.onClick(this, EventArgs.Empty);
        }
    }
    public class App
    {
        public App()
        {
            Console.WriteLine("App");
            Button btn = new Button();
            btn.onClick += OnClickEventHandler;
            btn.onClick += (sender, e) =>
            {
                Console.WriteLine("[람다] Click : {0}, {1}", sender, e);
            };
            btn.OnMouseDown();

        }
        private void OnClickEventHandler(object sender, EventArgs e)
        {
            Console.WriteLine("Click : {0}, {1}", sender, e);
        }
    }
}

Drone 업그레이드

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Threading;

namespace Study01
{
    public class Drone
    {
        public enum eDirection
        {
            FORWARD, BACK, LEFT, RIGHT, UP, DOWN
        }
        public int Id { get; private set; }
        private DroneController controller;
        public Drone(int id)
        {
            this.Id = id;
        }

        public void Init(DroneController controller)
        {
            this.controller = controller;
            this.controller.onMove += OnMoveEventHandler;
        }

        private void OnMoveEventHandler(object sender, DroneEventArgs e)
        {
            if (e.Id == this.Id || e.Id == 999)
            {
                this.Move(e.Dir);
            }
            else
            {
                Console.WriteLine("no signal..., id: {0}", this.Id);
            }
        }

        public void Move(eDirection dir)
        {
            Console.WriteLine("[MOVE] id: {0}, dir:{1}", this.Id, dir);
        }
    }
    public class DroneEventArgs : EventArgs
    {
        public Drone.eDirection Dir { get; private set; }
        public int Id { get; private set; }
        public DroneEventArgs(int id, Drone.eDirection dir)
        {
            this.Id = id;
            this.Dir = dir;
        }
    }

    public class DroneController
    {
        public event EventHandler<DroneEventArgs> onMove;

        //생성자 
        public DroneController()
        {

        }
        public void Control(int id, Drone.eDirection dir)
        {
            DroneEventArgs args = new DroneEventArgs(id, dir);
            this.onMove(this, args);
        }
    }

    public class App
    {
        public App()
        {
            Console.WriteLine("App");

            DroneController controller = new DroneController();

            Drone drone1 = new Drone(100);
            Drone drone2 = new Drone(200);

            drone1.Init(controller);
            drone2.Init(controller);

            controller.Control(999, Drone.eDirection.UP);

        }

    }
}

File 불러오기

 

using System;
using System.IO;
using Newtonsoft.Json;
using System.Collections.Generic;
using System.Linq;
namespace Study01
{
   
    public class App
    {
        public App()
        {
            Console.WriteLine("App");
            string txt = File.ReadAllText("./weapon_data.json");
            Console.WriteLine(txt);

            //역직렬화
            WeaponData[] weaponDatas = JsonConvert.DeserializeObject<WeaponData[]>(txt);
            Dictionary<int, WeaponData> dicWeaponData;


            dicWeaponData = weaponDatas.ToDictionary(x => x.id);
          

            Console.WriteLine("-----------------------------------");
            foreach(KeyValuePair<int, WeaponData> pair in dicWeaponData)
            {
                WeaponData data = pair.Value;
                Console.WriteLine("{0} {1} {2}", data.id, data.name, data.damage);
            }

        }

    }
}

using System;

namespace Study01
{
    class WeaponData
    {
        public int id;
        public string name;
        public int damage;
    }
}