PIU_Pong_by_Cieslin

#include <windows.h>
#include <ctime>
#include <iostream>

#define WINDOW_X 1240
#define WINDOW_Y 720
#define MAP_X 80
#define MAP_Y 100
#define TIME_ID 1
#define TIME_ID_2 2

LRESULT CALLBACK ProceduraOkna(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);


const COLORREF backgroundColor = RGB(0, 0, 0);
const COLORREF objectsColor = RGB(255, 255, 255);
const COLORREF ballColor = RGB(0, 128, 0);

/*enum Kierunek {
    GORA = 1,
    GORA_PRAWO = 2,
    PRAWO = 3,
    PRAWO_DOL = 4,
    DOL_LEWO = 5,
    LEWO = 6,
    LEWO_GORA = 7
};*/

HINSTANCE hInstance;
RECT windowRect;
HDC hdc;

struct Paletka {
    int gora;
    int dol;
    int prawo;
    int lewo;
};

Paletka p1, p2, p3;

bool RejestracjaKlasy(WNDCLASSEX &window)
{
    window.cbSize = sizeof(WNDCLASSEX);
    window.style = CS_VREDRAW | CS_HREDRAW;
    window.lpfnWndProc = ProceduraOkna;
    window.cbClsExtra = 0;
    window.cbWndExtra = 0;
    window.hInstance = hInstance;
    window.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    window.hCursor = LoadCursor(NULL, IDC_ARROW);
    window.hbrBackground = (HBRUSH)CreateSolidBrush(backgroundColor);
    window.lpszMenuName = NULL;
    window.lpszClassName = "StandardoweOkno";
    window.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

    if (!RegisterClassEx(&window))
    {
        MessageBox(NULL, "Problem z rejestracją okna", "Rejestracja okna", MB_ICONERROR | MB_OK);
        return false;
    }
    return true;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCMD)
{
    WNDCLASSEX window;
    if (!RejestracjaKlasy(window))
        return 1;


    HWND uchwytOkna = 0;

    uchwytOkna = CreateWindowEx(
        WS_EX_APPWINDOW | WS_EX_CLIENTEDGE,
        "StandardoweOkno",
        "Pierwsze okno",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        WINDOW_X,
        WINDOW_Y,
        0,
        0,
        hInstance,
        0);

    ShowWindow(uchwytOkna, nShowCMD);
    UpdateWindow(uchwytOkna);

    MSG msg;

    for (; ;)
    {
        if (0 != GetMessage(&msg, 0, 0, 0))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        if (msg.message == WM_QUIT) break;
    }

    return (int)msg.wParam;
}

LRESULT CALLBACK ProceduraOkna(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    static HPEN whitePen;
    static HPEN greenPen;
    static HBRUSH whiteBrush;
    static HBRUSH greenBrush;
    static PAINTSTRUCT paint;
    static int kierunek;
    static bool isStart;
    switch (message)
    {
    case WM_CLOSE:
        if (MessageBox(hWnd, "Czy chcesz zakonczyc dzialanie programu?", "Dzialanie programu", MB_YESNO | MB_ICONERROR) == IDNO)
            break;
    case WM_DESTROY:
        KillTimer(hWnd, TIME_ID);
        KillTimer(hWnd, TIME_ID_2);
        PostQuitMessage(0);
        break;
    case WM_CREATE:
        SetTimer(hWnd, TIME_ID, 100, NULL);
        SetTimer(hWnd, TIME_ID_2, 80, NULL);
        srand((unsigned)time(NULL));
        kierunek = 6;
        GetClientRect(hWnd, &windowRect);
        p1.lewo = (windowRect.left + 5);
        p1.gora = (windowRect.bottom / 2) - 40;
        p1.prawo = (windowRect.left + 20);
        p1.dol = (windowRect.bottom / 2) + 40;
        p2.lewo = (windowRect.right - 5);
        p2.prawo = (windowRect.right - 20);
        p2.gora = (windowRect.bottom / 2) - 40;
        p2.dol = (windowRect.bottom / 2) + 40;
        p3.lewo = (windowRect.right / 2) - 10;
        p3.prawo = (windowRect.right / 2) + 10;
        p3.gora = (windowRect.bottom / 2) - 10;
        p3.dol = (windowRect.bottom / 2) + 10;
        isStart = false;
        whiteBrush = CreateSolidBrush(objectsColor);
        greenBrush = CreateSolidBrush(ballColor);
        whitePen = CreatePen(PS_SOLID, 1, objectsColor);
        greenPen = CreatePen(PS_SOLID, 1, ballColor);
        break;
    case WM_PAINT:
    {
        hdc = BeginPaint(hWnd, &paint);
        SelectObject(hdc, whitePen);
        SelectObject(hdc, whiteBrush);
        MoveToEx(hdc, windowRect.right / 2, 0, NULL);
        LineTo(hdc, windowRect.right / 2, windowRect.bottom);

        /*SetMapMode(hdc, MM_ANISOTROPIC);
        SetViewportExtEx(hdc, windowRect.right, windowRect.bottom, NULL);
        SetViewportOrgEx(hdc, 0, 0, NULL);
        SetWindowExtEx(hdc, MAP_X, MAP_Y, NULL);
        SetWindowOrgEx(hdc, 0, 0, NULL);*/

        Rectangle(hdc, p1.lewo, p1.gora, p1.prawo, p1.dol);
        Rectangle(hdc, p2.lewo, p2.gora, p2.prawo, p2.dol);

        SelectObject(hdc, greenBrush);
        SelectObject(hdc, greenPen);

        Ellipse(hdc, p3.lewo, p3.gora, p3.prawo, p3.dol);


        EndPaint(hWnd, &paint);
    }
        break;
    case WM_SIZE:
        GetClientRect(hWnd, &windowRect);
        break;
    case WM_KEYDOWN:
        switch (wParam)
        {
        case 0x41:
            if (p1.gora > windowRect.top)
            {
                p1.gora -= 10;
                p1.dol -= 10;
            }
            break;
        case 0x5A:
            if (p1.dol < windowRect.bottom)
            {
                p1.dol += 10;
                p1.gora += 10;
            }
            break;
        case VK_UP:
            if (p2.gora > windowRect.top)
            {
                p2.gora -= 10;
                p2.dol -= 10;
            }
            break;
        case VK_DOWN:
            if (p2.dol < windowRect.bottom)
            {
                p2.dol += 10;
                p2.gora += 10;
            }
            break;
        case VK_SPACE:
            isStart = true;
        }
        break;
    case WM_TIMER:
        if (p3.prawo >= windowRect.right)
        {
            p1.lewo = (windowRect.left + 5);
            p1.gora = (windowRect.bottom / 2) - 40;
            p1.prawo = (windowRect.left + 20);
            p1.dol = (windowRect.bottom / 2) + 40;
            p2.lewo = (windowRect.right - 5);
            p2.prawo = (windowRect.right - 20);
            p2.gora = (windowRect.bottom / 2) - 40;
            p2.dol = (windowRect.bottom / 2) + 40;
            p3.lewo = (windowRect.right / 2) - 10;
            p3.prawo = (windowRect.right / 2) + 10;
            p3.gora = (windowRect.bottom / 2) - 10;
            p3.dol = (windowRect.bottom / 2) + 10;
            isStart = false;
            MessageBox(hWnd, "Wygral Player 1!", "WYGRANA", MB_OK);
        }
        if (p3.lewo <= windowRect.left)
        {
            p1.lewo = (windowRect.left + 5);
            p1.gora = (windowRect.bottom / 2) - 40;
            p1.prawo = (windowRect.left + 20);
            p1.dol = (windowRect.bottom / 2) + 40;
            p2.lewo = (windowRect.right - 5);
            p2.prawo = (windowRect.right - 20);
            p2.gora = (windowRect.bottom / 2) - 40;
            p2.dol = (windowRect.bottom / 2) + 40;
            p3.lewo = (windowRect.right / 2) - 10;
            p3.prawo = (windowRect.right / 2) + 10;
            p3.gora = (windowRect.bottom / 2) - 10;
            p3.dol = (windowRect.bottom / 2) + 10;
            isStart = false;
            MessageBox(hWnd, "Wygral Player 2!", "WYGRANA", MB_OK);
        }
        if (isStart)
        {
            if ((p3.dol >= p1.gora && p3.lewo == p1.prawo && p3.gora <= p1.dol) || (p3.dol >= p2.gora && p3.lewo == p2.prawo && p3.gora <= p2.dol) || p3.gora <= windowRect.top || p3.dol >= windowRect.bottom)
                kierunek = rand() % 7;
            switch (kierunek)
            {
            case 0:
                p3.gora -= 5;
                p3.dol -= 5;
                break;
            case 1:
                p3.gora -= 5;
                p3.dol -= 5;
                p3.prawo += 5;
                p3.lewo += 5;
                break;
            case 2:
                p3.prawo += 5;
                p3.lewo += 5;
                break;
            case 3:
                p3.prawo += 5;
                p3.lewo += 5;
                p3.dol += 5;
                p3.gora += 5;
                break;
            case 4:
                p3.dol += 5;
                p3.gora += 5;
                break;
            case 5:
                p3.dol += 5;
                p3.gora += 5;
                p3.lewo -= 5;
                p3.prawo -= 5;
                break;
            case 6:
                p3.lewo -= 5;
                p3.prawo -= 5;
                break;
            case 7:
                p3.lewo -= 5;
                p3.prawo -= 5;
                p3.gora -= 5;
                p3.dol -= 5;
                break;
            }
            InvalidateRect(hWnd, &windowRect, 1);
        }
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}