오다기리 박의 알고리즘 노트

[핵심 API로 배우는 윈도우프로그래밍(강경우, 한빛아카데미)] 9장 8번 풀이 본문

WIN32 API

[핵심 API로 배우는 윈도우프로그래밍(강경우, 한빛아카데미)] 9장 8번 풀이

오다기리 박 2018. 1. 9. 18:03

-서버 cpp파일-

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//논블로킹 단방향통신에서 서버가 클라이언트로 메시지를 보내는 코드를 추가한다.
#include <Windows.h>
#include<tchar.h>
#include<string.h>
#include<stdio.h>
#include<math.h>
#define WM_ASYNC WM_USER+2
//#pragma comment(linker,"/entry:WinMainCRTStartup /subsystem:console")
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);
HINSTANCE hInst;
 
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow)
{
    HWND hwnd;
    MSG msg;
    WNDCLASS WndClass;
 
    hInst = hInstance;
    WndClass.style = CS_HREDRAW | CS_VREDRAW;
    WndClass.lpfnWndProc = WndProc;
    WndClass.cbClsExtra = 0;
    WndClass.cbWndExtra = 0;
    WndClass.hInstance = hInstance;
    WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
    WndClass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
    WndClass.lpszMenuName = NULL;
    WndClass.lpszClassName = _T("Window Class Name");
 
    RegisterClass(&WndClass);
 
    hwnd = CreateWindow(
        _T("Window Class Name"),
        _T("Server Window"),
        WS_OVERLAPPEDWINDOW,
        50,
        50,
        900,
        380,
        NULL,
        NULL,
        hInstance,
        NULL);
 
    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);
 
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return (int)msg.wParam;
}
 
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
    HDC hdc;
    PAINTSTRUCT ps;
    static WSADATA wsadata;
    static SOCKET s, cs;
 
    static SOCKADDR_IN addr = { 0 }, c_addr;
 
    static bool MyTurn = TRUE;
 
    HPEN blackPen;
    HBRUSH hBrush;
    static int red[30] = { 0, }, green[30] = { 255, }, blue[30] = { 0, };
 
    static int server_x = 20, server_y = 300;
    static int client_x = 820, client_y = 300;
 
    static int server_boom_x = 20, server_boom_y = 300;
    static int client_boom_x = 820, client_boom_y = 300;
 
    int  size, msgLen;
    char buffer[100];
    int i = 0;
 
    switch (iMsg)
    {
    case WM_CREATE:
        WSAStartup(MAKEWORD(2, 2), &wsadata);            //1.윈속사용시작하기
        s = socket(AF_INET, SOCK_STREAM, 0);            //2.소켓 생성-클라이언트가 접속하기를 기다리는 소켓
        addr.sin_family = AF_INET;
        addr.sin_port = 20;
        addr.sin_addr.s_addr = inet_addr("127.0.0.1");
        bind(s, (LPSOCKADDR)&addr, sizeof(addr));        //3.주소와 소켓 연결하기
        WSAAsyncSelect(s, hwnd, WM_ASYNC, FD_ACCEPT);    //4.소켓s에서 상대방이 접속을 시도하는 이벤트가 발생하면 WM_ASYNC를 hwnd 윈도우에 발생시키위해 설정
        if (listen(s, 5) == -1)                            //5.연결 요구 기다리기
            return 0;
        break;
    case WM_ASYNC:                                        //WM_ASYNC메시지 발생시 lParam으로 어떤 이벤트가 발생했는지 구분
        switch (lParam)
        {
        case FD_ACCEPT:                                    //클라이언트가 접속을 시도하면
            size = sizeof(c_addr);                        //클라이언트와 통신하기 위한 소켓cs를 만들어 클라이언트와의 통신을 전담시킨다. 
            cs = accept(s, (LPSOCKADDR)&c_addr, &size);
            WSAAsyncSelect(cs, hwnd, WM_ASYNC, FD_READ);//클라이언트가 메시지를 보낼 때까지 무한정 기다릴 수 없으므로 FD_READ를 WM_ASYNC에 등록
            break;
        case FD_READ:
            recv(cs, buffer, 100, 0);
            if (!_tcscmp(buffer, _T("-1")))                //발사메시지 도착
            {
                SetTimer(hwnd, 2, 15, NULL);
                MyTurn = TRUE;
                return 0;
            }
            else if (!_tcscmp(buffer, _T("2")))                //오른쪽 이동 메시지 도착
            {
                client_x += 10;
                InvalidateRgn(hwnd, NULL, TRUE);
                return 0;
            }
            else if (!_tcscmp(buffer, _T("1")))                //왼쪽이동 메시지 도착
            {
                client_x -= 10;
                InvalidateRgn(hwnd, NULL, TRUE);
                return 0;
            }
            break;
        default:
            break;
        }
        break;
 
    case WM_KEYDOWN:
        if (wParam == VK_SPACE&&MyTurn)
        {
            SetTimer(hwnd, 1, 15, NULL);
            _stprintf_s(buffer, _T("-1"));        //발사 메시지
            send(cs, (LPSTR)buffer, 10, 0);
            MyTurn = FALSE;
        }
        else if (wParam == VK_RIGHT)
        {
            server_x += 10;
            server_boom_x = server_x;
            _stprintf_s(buffer, _T("2"));        //오른쪽 이동 메시지
            send(cs, (LPSTR)buffer, 10, 0);
            InvalidateRgn(hwnd, NULL, TRUE);
        }
        else if (wParam == VK_LEFT)
        {
            server_x -= 10;
            server_boom_x = server_x;
            _stprintf_s(buffer, _T("1"));        //왼쪽 이동 메시지
            send(cs, (LPSTR)buffer, 10, 0);
            InvalidateRgn(hwnd, NULL, TRUE);
        }
        break;
 
    case WM_TIMER:
        switch (wParam)
        {
        case 1:
            server_boom_x += 10;
            server_boom_y = 0.001f*pow(server_boom_x - 400, 2) + 150;
            InvalidateRgn(hwnd, NULL, TRUE);
            if (server_boom_y >= 400)
            {
                server_boom_x = server_x;
                server_boom_y = server_y;
                KillTimer(hwnd, 1);
            }
            break;
        case 2:
            client_boom_x -= 10;
            client_boom_y = 0.001f*pow(client_boom_x - 400, 2) + 150;
            InvalidateRgn(hwnd, NULL, TRUE);
            if (client_boom_y >= 400)
            {
                client_boom_x = client_x;
                client_boom_y = client_y;
                KillTimer(hwnd, 2);
            }
            break;
        }
        break;
 
    case WM_PAINT:
        hdc = BeginPaint(hwnd, &ps);
 
        hBrush = CreateSolidBrush(RGB(0, 0, 0));
        SelectObject(hdc, hBrush);
        Ellipse(hdc, server_x - 20, server_y - 20, server_x + 20, server_y + 20);
 
        hBrush = CreateSolidBrush(RGB(255, 255, 255));
        SelectObject(hdc, hBrush);
        Ellipse(hdc, client_x - 20, client_y - 20, client_x + 20, client_y + 20);
 
        hBrush = CreateSolidBrush(RGB(0, 0, 255));
        SelectObject(hdc, hBrush);
        Ellipse(hdc, server_boom_x - 5, server_boom_y - 5, server_boom_x + 5, server_boom_y + 5);
 
        hBrush = CreateSolidBrush(RGB(255, 0, 0));
        SelectObject(hdc, hBrush);
        Ellipse(hdc, client_boom_x - 5, client_boom_y - 5, client_boom_x + 5, client_boom_y + 5);
 
        EndPaint(hwnd, &ps);
        break;
    case WM_DESTROY:
        closesocket(s);
        WSACleanup();
        PostQuitMessage(0);
        break;
    }
    return DefWindowProc(hwnd, iMsg, wParam, lParam);
}
cs


-클라이언트 cpp파일-

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//6번소스와 동일
#include <Windows.h>
#include<tchar.h>
#include<string.h>
#include<stdio.h>
#include<stdlib.h>
#include<iostream>
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);
HINSTANCE hInst;
#define WM_ASYNC WM_USER+2
 
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow)
{
    HWND hwnd;
    MSG msg;
    WNDCLASS WndClass;
 
    hInst = hInstance;
    WndClass.style = CS_HREDRAW | CS_VREDRAW;
    WndClass.lpfnWndProc = WndProc;
    WndClass.cbClsExtra = 0;
    WndClass.cbWndExtra = 0;
    WndClass.hInstance = hInstance;
    WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
    WndClass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
    WndClass.lpszMenuName = NULL;
    WndClass.lpszClassName = _T("Window Class Name");
 
    RegisterClass(&WndClass);
 
    hwnd = CreateWindow(
        _T("Window Class Name"),
        _T("Client Window"),
        WS_OVERLAPPEDWINDOW,
        50,
        50,
        900,
        380,
        NULL,
        NULL,
        hInstance,
        NULL);
 
    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);
 
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return (int)msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
    HDC hdc;
    PAINTSTRUCT ps;
    static WSADATA wsadata;
    static SOCKET s;
    static SOCKADDR_IN addr = { 0 };
 
    static bool MyTurn = FALSE;
 
    HPEN blackPen;
    HBRUSH hBrush;
    static int red[30] = { 0, }, green[30] = { 255, }, blue[30] = { 0, };
 
    static int server_x = 20, server_y = 300;
    static int client_x = 820, client_y = 300;
 
    static int server_boom_x = 20, server_boom_y = 300;
    static int client_boom_x = 820, client_boom_y = 300;
 
    int msgLen;
    char buffer[100];
    int i = 0;
 
    switch (iMsg)
    {
    case WM_CREATE:
        WSAStartup(MAKEWORD(2, 2), &wsadata);                    //1.윈속 사용시작하기
        s = socket(AF_INET, SOCK_STREAM, 0);                    //2.소켓 생성하기
        addr.sin_family = AF_INET;
        addr.sin_port = 20;
        addr.sin_addr.s_addr = inet_addr("127.0.0.1");
        WSAAsyncSelect(s, hwnd, WM_ASYNC, FD_READ);                //서버에서 보낸 데이터를 받아야 하므로 FD_READ 이벤트에 대해 WM_ASYNC윈도우 메시지를 등록
        if (connect(s, (LPSOCKADDR)&addr, sizeof(addr)) == -1)    //3.연결 요구하기(접속실패시 종료)
            return 0;
        break;
    case WM_ASYNC:                                                //양방향 통신이므로 클라이언트가 다른 메시지를 처리하는 도중 서버에서 데이터를 보내면
        switch (lParam)                                            //WM_ASYNC와 lParam이 같이 도착한다.
        {
        case FD_READ:
            recv(s, buffer, 100, 0);
            if (!_tcscmp(buffer, _T("-1")))                //발사메시지 도착
            {
                SetTimer(hwnd, 1, 15, NULL);
                MyTurn = TRUE;
                return 0;
            }
            else if (!_tcscmp(buffer, _T("2")))                //오른쪽 이동 메시지 도착
            {
                server_x += 10;
                InvalidateRgn(hwnd, NULL, TRUE);
                return 0;
            }
            else if (!_tcscmp(buffer, _T("1")))                //왼쪽이동 메시지 도착
            {
                server_x -= 10;
                InvalidateRgn(hwnd, NULL, TRUE);
                return 0;
            }
            break;
        default:
            break;
        }
        break;
    case WM_KEYDOWN:
        if (wParam == VK_SPACE&&MyTurn)
        {
            SetTimer(hwnd, 2, 15, NULL);
            _stprintf_s(buffer, _T("-1"));        //발사 메시지
            send(s, (LPSTR)buffer, 10, 0);
            MyTurn = FALSE;
        }
        else if (wParam == VK_RIGHT)
        {
            client_x += 10;
            client_boom_x = client_x;
            _stprintf_s(buffer, _T("2"));        //오른쪽 이동 메시지
            send(s, (LPSTR)buffer, 10, 0);
            InvalidateRgn(hwnd, NULL, TRUE);
        }
        else if (wParam == VK_LEFT)
        {
            client_x -= 10;
            client_boom_x = client_x;
            _stprintf_s(buffer, _T("1"));        //왼쪽 이동 메시지
            send(s, (LPSTR)buffer, 10, 0);
            InvalidateRgn(hwnd, NULL, TRUE);
        }
        break;
 
    case WM_TIMER:
        switch (wParam)
        {
        case 1:
            server_boom_x += 10;
            server_boom_y = 0.001f*pow(server_boom_x - 400, 2) + 150;
            InvalidateRgn(hwnd, NULL, TRUE);
            if (server_boom_y >= 400)
            {
                server_boom_x = server_x;
                server_boom_y = server_y;
                KillTimer(hwnd, 1);
            }
            break;
        case 2:
            client_boom_x -= 10;
            client_boom_y = 0.001f*pow(client_boom_x - 400, 2) + 150;
            InvalidateRgn(hwnd, NULL, TRUE);
            if (client_boom_y >= 400)
            {
                client_boom_x = client_x;
                client_boom_y = client_y;
                KillTimer(hwnd, 2);
            }
            break;
        }
        break;
 
    case WM_PAINT:
        hdc = BeginPaint(hwnd, &ps);
 
        hBrush = CreateSolidBrush(RGB(0, 0, 0));
        SelectObject(hdc, hBrush);
        Ellipse(hdc, server_x - 20, server_y - 20, server_x + 20, server_y + 20);
 
        hBrush = CreateSolidBrush(RGB(255, 255, 255));
        SelectObject(hdc, hBrush);
        Ellipse(hdc, client_x - 20, client_y - 20, client_x + 20, client_y + 20);
 
        hBrush = CreateSolidBrush(RGB(0, 0, 255));
        SelectObject(hdc, hBrush);
        Ellipse(hdc, server_boom_x - 5, server_boom_y - 5, server_boom_x + 5, server_boom_y + 5);
 
        hBrush = CreateSolidBrush(RGB(255, 0, 0));
        SelectObject(hdc, hBrush);
        Ellipse(hdc, client_boom_x - 5, client_boom_y - 5, client_boom_x + 5, client_boom_y + 5);
 
        EndPaint(hwnd, &ps);
        break;
    case WM_DESTROY:
        closesocket(s);
        WSACleanup();
        PostQuitMessage(0);
        break;
 
    }
    return DefWindowProc(hwnd, iMsg, wParam, lParam);
}
cs


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