KGLab3

void paintStar(HWND* hWnd, int sx, int sy)
{
    PAINTSTRUCT ps;
    HBRUSH hBrush = CreateSolidBrush(RGB(0,0,255));; //Öâåò ôîíà çâåçäû
    HDC hdc = BeginPaint(*hWnd, &ps);
    HPEN hpen = CreatePen(PS_SOLID, 2, RGB(0,0,0)); //Öâåò ëèíèé

    const int WIDTH = 400;
    const int HEIGHT = 300;

    POINT pt[5] = {
        {0, -100},
        {59, 95},
        {-95, -31},
        {95, -31},
        {-59, 95}
    };

    POINT pt1[5];

    SetMapMode(hdc, MM_ANISOTROPIC);
    SetWindowExtEx(hdc, WIDTH, -HEIGHT, NULL);
    SetViewportExtEx(hdc, sx/2, sy/2, NULL);
    SetViewportOrgEx(hdc, sx/2, sy/2, NULL);

    //

    //Polygon(hdc, pt, 5);

    int n = 6;
    double M_PI = 3.1415;
    double alpha = M_PI / n;

    for(int i = 0; i < n; i++)
    {
        hBrush = CreateSolidBrush(RGB(255, 255-255./n*i, 255-255./n*i));

        SelectObject(hdc, hBrush);
        for(int j = 0; j < 5; j++)
        {
            pt1[j].x = (pt[j].x * cos(alpha*i) - pt[j].y * sin(alpha*i)) + i * 10;
            pt1[j].y = (pt[j].x * sin(alpha*i) + pt[j].y * cos(alpha*i));
        }
        BeginPath(hdc);

        Polygon(hdc, pt1, 5);

        CloseFigure(hdc);
        EndPath(hdc);
        SelectObject(hdc, hBrush);
        SetPolyFillMode(hdc, WINDING);
        FillPath(hdc);
    }


    EndPaint(*hWnd, &ps);
}