# 샘플 코드

[DllImport("USER32.DLL")]
        public static extern uint FindWindow(string lpClassName, string lpWindowName);

        [DllImport("user32.dll")]
        public static extern uint FindWindowEx(uint hWnd1, uint hWnd2, string lpsz1, string lpsz2);

        [DllImport("user32.dll")]
        public static extern uint SendMessage(uint hwnd, uint wMsg, uint wParam, uint lParam);

        [DllImport("user32.dll")]
        public static extern uint PostMessage(uint hwnd, uint wMsg, uint wParam, uint lParam);


                        handle = FindWindow([클래스], [캡션]);
                        handle = FindWindowEx(handle, 0, "Button", "취소");
                        PostMessage(handle, 0x100, 13, 1835009); // 엔터
                        PostMessage(handle, 0x101, 13, 1835009); //엔터

# 체크 메소드

private static bool ConnectTest(string ip, int port) {
            bool result = false;
            Socket socket = null;
            try {
                socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.DontLinger, false);
                IAsyncResult ret = socket.BeginConnect(ip, port, null, null);
                result = ret.AsyncWaitHandle.WaitOne(100, true);
            }
            catch (Exception e)
            {
                System.Console.WriteLine(e);
            }
            finally
            {
                if (socket != null) {
                    socket.Close();
                }
            }
            return result;
        }

# 취득 메소드

        /// <summary>
        /// Gets the current DateTime from time-a.nist.gov.
        /// </summary>
        /// <returns>A DateTime containing the current time.</returns>
        public static DateTime GetNetworkTime()
        {
            return GetNetworkTime("time.windows.com"); // time-a.nist.gov
        }

        /// <summary>
        /// Gets the current DateTime from <paramref name="ntpServer"/>.
        /// </summary>
        /// <param name="ntpServer">The hostname of the NTP server.</param>
        /// <returns>A DateTime containing the current time.</returns>
        public static DateTime GetNetworkTime(string ntpServer)
        {
            IPAddress[] address = Dns.GetHostEntry(ntpServer).AddressList;

            if (address == null || address.Length == 0)
                throw new ArgumentException("Could not resolve ip address from '" + ntpServer + "'.", "ntpServer");

            IPEndPoint ep = new IPEndPoint(address[0], 123);

            return GetNetworkTime(ep);
        }

        /// <summary>
        /// Gets the current DateTime form <paramref name="ep"/> IPEndPoint.
        /// </summary>
        /// <param name="ep">The IPEndPoint to connect to.</param>
        /// <returns>A DateTime containing the current time.</returns>
        public static DateTime GetNetworkTime(IPEndPoint ep)
        {
            Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);

            s.Connect(ep);

            byte[] ntpData = new byte[48]; // RFC 2030 
            ntpData[0] = 0x1B;
            for (int i = 1; i < 48; i++)
                ntpData[i] = 0;

            s.Send(ntpData);
            s.Receive(ntpData);

            byte offsetTransmitTime = 40;
            ulong intpart = 0;
            ulong fractpart = 0;

            for (int i = 0; i <= 3; i++)
                intpart = 256 * intpart + ntpData[offsetTransmitTime + i];

            for (int i = 4; i <= 7; i++)
                fractpart = 256 * fractpart + ntpData[offsetTransmitTime + i];

            ulong milliseconds = (intpart * 1000 + (fractpart * 1000) / 0x100000000L);
            s.Close();

            TimeSpan timeSpan = TimeSpan.FromTicks((long)milliseconds * TimeSpan.TicksPerMillisecond);

            DateTime dateTime = new DateTime(1900, 1, 1);
            dateTime += timeSpan;

            TimeSpan offsetAmount = TimeZone.CurrentTimeZone.GetUtcOffset(dateTime);
            DateTime networkDateTime = (dateTime + offsetAmount);

            return networkDateTime.AddHours(-9);
        }

#설정 메소드

        [DllImport("kernel32")]
        public static extern int SetSystemTime(ref SYSTEMTIME lpSystemTime);


        public struct SYSTEMTIME
        {
            public short wYear; //년도
            public short wMonth; //월
            public short wDayOfWeek; //요일
            public short wDay; //일
            public short wHour; //시
            public short wMinute; //분
            public short wSecond; //초
            public short wMilliseconds; //1/100초
        }

        private void setNowTime()
        {
            SYSTEMTIME sTime = new SYSTEMTIME();
            sTime.wYear = Convert.ToInt16(GetNetworkTime().Year);
            sTime.wMonth = Convert.ToInt16(GetNetworkTime().Month);
            sTime.wDayOfWeek = Convert.ToInt16(GetNetworkTime().DayOfWeek);
            sTime.wDay = Convert.ToInt16(GetNetworkTime().Day);
            sTime.wHour = Convert.ToInt16(GetNetworkTime().Hour);
            sTime.wMinute = Convert.ToInt16(GetNetworkTime().Minute);
            sTime.wSecond = Convert.ToInt16(GetNetworkTime().Second);
            sTime.wMilliseconds = Convert.ToInt16(GetNetworkTime().Millisecond);
            SetSystemTime(ref sTime);
        }

링크1: https://honsal.blogspot.com/2016/05/c_17.html

링크2: https://blog.naver.com/thefeel777/130097883405

#샘플 코드

        public string GetExternalIp()
        {
            IPAddress externalIp = null;
            try
            {
                string Ip = "http://www.whatismyip.com/automation/n09230945.asp";
                WebClient wc = new WebClient();
                UTF8Encoding utf8 = new UTF8Encoding();
                string requestHtml = string.Empty;
                requestHtml = utf8.GetString(wc.DownloadData(Ip));
                externalIp = IPAddress.Parse(requestHtml);

                return externalIp.ToString();
            }
            catch (Exception ex)
            {
                KMLog.SetLog("MainForm Exception", "GetExternalIp() ", ex.Message);
                return null;
            }
        }

#샘플 코드

private static DateTime Delay(int MS)
{
  DateTime ThisMoment = DateTime.Now;
  TimeSpan duration = new TimeSpan(0, 0, 0, 0, MS);
  DateTime AfterWards = ThisMoment.Add(duration);
  while (AfterWards >= ThisMoment)
  {
    System.Windows.Forms.Application.DoEvents();
    ThisMoment = DateTime.Now;
  }
  return DateTime.Now;
}

C# - 2D캐릭터 Sprite의 움직임효과 구성하기

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerMovement : MonoBehaviour {

    Rigidbody2D rbody;
    Animator anim;

    // Use this for initialization
    void Start () {
        rbody = GetComponent<Rigidbody2D> ();
        anim = GetComponent<Animator> ();
    }
    
    // Update is called once per frame
    void Update () {
        Vector2 Movement_Vector = new Vector2 (Input.GetAxisRaw ("Horizontal"), Input.GetAxisRaw ("Vertical"));

        if (Movement_Vector != Vector2.zero) {
            anim.SetBool ("isWalking", true);
            anim.SetFloat ("Input_x", Movement_Vector.x);
            anim.SetFloat ("Input_y", Movement_Vector.y);
        } else {
            anim.SetBool ("isWalking", false);
        }

        rbody.MovePosition (rbody.position + Movement_Vector * Time.deltaTime * 3);
    }
}

​

!코드내용 자체 해석

Rigidbody2D , Animator 참조 선언.

​Start() 함수에서 컴포넌트 정보를 취득.

Update() 함수에서 ​Vector2 참조 선언 Input.GetAxisRaw 옵션으로, Horizontal(수평), Vertical(수직) 입력값의 취득.

취득한 Animator 오브젝트에서 isWalking, Input_x, Input_y 값에 따른 Vector2 값을 취득한 다음 Bool, Flaot 값을 대입한다.

​

​Rigidbody2D 오브젝트의 이동위치를 Rigidbody2D 오브젝트의 현재위치 + Vector2 값 * Time.deltaTime (시간차?) 값으로. 

​ 

Code List

1) 게임종료 코드

      public void GameExit() { //함수의 명칭은 적절하게 설정하면 된다. 
        UnityEditor.EditorApplication.isPlaying = false; //유니티 에터상에서 게임의 실행을 중단하는 옵션이라 추측한다.
        Application.Quit(); //문장그대로 어플리케이션을 닫는것 같다.
    }

2) Scene전환 코드

using UnityEngine;
using System.Collections;
using UnityEngine.SceneManagement;

public class NewGame : MonoBehaviour {

    public void LoadByIndex(int sceneIndex){
        SceneManager.LoadScene (sceneIndex);
    }
}

3) string 변수로 keyboard의 key값 읽어오기.

 string RunKey;

if (Input.GetKey (RunKey)){}

//주의 UnityEditor에서 대문자로 Input값을 입력하면 컴파일 에러난다.ex) 'x'(O) 'X'(X)​

4) Input.getKey/getKeyUp/getKeyDown 이란?

Input.GetKey([KeyCode]) : 이녀석은 Turbo Key(?) 효과가 있다.

Input.GetKey​Down([KeyCode]) : 1회 타이핑 또는 누르고 있는 효과를 볼수 있다.

Input.GetKeyUp([KeyCode]) : 위와 동일한듯 하다.