我有一个程序，它具有sf :: RenderWindows的公共静态数组，该数组是sfml库中的不可复制窗口。无论如何，当我尝试将push_back返回到向量时，都会出现错误，因为它无法复制。我已经尝试过使用refrancs和指针来做到这一点，并且总是会遇到某种错误。如果我尝试使用refrances，则会出现20条错误，指出指向refrance的指针是非法的；如果我尝试使用.draw和.clear之类的指针构造函数，则“不存在”。如果可以使用不复制的类似push_back之类的方法，那很好，如果没有，我在尝试使用refrances和指针时会给出代码。
法郎
static vector <MakeKey::NewKey> KeyArray;
static vector <sf::RenderWindow&> WindowArray;
static void StepWindows(sf::RenderWindow & window, MakeKey::NewKey key)
{
sf::Clock clock;
MakeTopWindow(window);
setShape(window, key.Img);
window.clear(sf::Color::Transparent);
window.draw(key.Sprite);
window.display();
if (clock.getElapsedTime().asMicroseconds() > 1000)
{
window.setPosition(MakeKey::Gravity(window, key));
}
}
我后推时的法郎
MakeKey::KeyArray.push_back(Key);
MakeKey::WindowArray.push_back(window);
指针
static vector <MakeKey::NewKey> KeyArray;
static vector <sf::RenderWindow*> WindowArray;
static void StepWindows(sf::RenderWindow & window, MakeKey::NewKey key)
{
sf::Clock clock;
MakeTopWindow(window);
setShape(window, key.Img);
window.clear(sf::Color::Transparent);
window.draw(key.Sprite);
window.display();
if (clock.getElapsedTime().asMicroseconds() > 1000)
{
window.setPosition(MakeKey::Gravity(window, key));
}
}
当我回推时的指针
MakeKey::KeyArray.push_back(Key);
MakeKey::WindowArray.push_back(&window);
//The error here is that is 2 undefined external symbol because I declaired both arrays as static but if they are not static I get a error on where I push_back saying refrance must be relative to specific class.
谢谢
我的全班学习，因为有人想要它-仍然出现链接器错误，但我试图找出原因。
static class MakeKey
{
public:
typedef struct KeyStruct {
sf::Image Img;
sf::Texture Tex;
sf::Sprite Sprite;
typedef struct Velocety {
static int x;
static int y;
};
typedef struct Acceleration {
static int x;
static int y;
};
typedef struct HitSide {
static bool x()
{
typedef struct Side {
static bool left(sf::RenderWindow window, sf::Image image) {
int XPos{ window.getPosition().x };
if (XPos > (sf::VideoMode::getDesktopMode().width - image.getSize().x - 1))
return true;
return false;
}
static bool right(sf::RenderWindow window, sf::Image image)
{
int XPos{ window.getPosition().x };
if (XPos < 1 + image.getSize().x)
return true;
return false;
}
};
}
static bool y(sf::RenderWindow window, sf::Image image)
{
typedef struct Side {
static bool top(sf::RenderWindow window, sf::Image image) {
int YPos = window.getPosition().y;
if (YPos > (sf::VideoMode::getDesktopMode().width - image.getSize().y - 1))
return true;
return false;
}
static bool bottom(sf::RenderWindow window, sf::Image image)
{
int YPos = window.getPosition().y;
if (YPos < 1 + image.getSize().y)
return true;
return false;
}
};
}
};
static sf::Clock OffGroundClock;
}NewKey;
static sf::Vector2i Gravity(sf::RenderWindow * window, MakeKey::NewKey Key)
{
int XPos = window->getPosition().x;
int YPos = window->getPosition().y;
cout << "Gravity Debug Starting\n" << XPos << " and " << YPos << endl;
YPos += 2;
if (YPos < 1 + Key.Img.getSize().y)
YPos = 1 + Key.Img.getSize().y;
if (YPos > (sf::VideoMode::getDesktopMode().height - Key.Img.getSize().y - 1))
YPos = (YPos = sf::VideoMode::getDesktopMode().height - Key.Img.getSize().y);
if (XPos < 1 + Key.Img.getSize().x)
XPos = (1 + Key.Img.getSize().x);
if (XPos > (sf::VideoMode::getDesktopMode().width - Key.Img.getSize().x - 1))
XPos = sf::VideoMode::getDesktopMode().width - Key.Img.getSize().x;
cout << XPos << " and " << YPos << endl;
return sf::Vector2i(XPos, YPos);
}
/*void Step() {
velocity.x += acceleration.x;
velocity.y += acceleration.y;
}*/
static bool setShape(sf::RenderWindow * window, const sf::Image& image)
{
HWND hwnd = window->getSystemHandle();
const sf::Uint8* pixelData = image.getPixelsPtr();
HRGN hRegion = CreateRectRgn(0, 0, image.getSize().x, image.getSize().y);
// Determine the visible region
for (unsigned int y = 0; y < image.getSize().y; y++)
{
for (unsigned int x = 0; x < image.getSize().x; x++)
{
if (pixelData[y * image.getSize().x * 4 + x * 4 + 3] == 0)
{
HRGN hRegionPixel = CreateRectRgn(x, y, x + 1, y + 1);
CombineRgn(hRegion, hRegion, hRegionPixel, RGN_XOR);
DeleteObject(hRegionPixel);
}
}
}
SetWindowRgn(hwnd, hRegion, true);
DeleteObject(hRegion);
return true;
}
static sf::Vector2i RandSpawn(sf::Image image)
{
cout << "Desktop Demensions:" << sf::VideoMode::getDesktopMode().width << " by " << sf::VideoMode::getDesktopMode().height << endl;
cout << "Starting Relocation Debug" << endl;
std::random_device rand;
int RandX = (rand() % sf::VideoMode::getDesktopMode().width) - image.getSize().x;
int RandY = (rand() % sf::VideoMode::getDesktopMode().height) - image.getSize().y;
if (RandX < 1 + image.getSize().x)
cout << "Image X Size: " << image.getSize().x << endl << "RandX: " << RandX << endl;
RandX = image.getSize().x;
cout << "Image X Size: " << image.getSize().x << endl << "RandX: " << RandX << endl;
if (RandY < 1 + image.getSize().y)
cout << "Image Y Size: " << image.getSize().y << endl << "RandY: " << RandY << endl;
RandY = image.getSize().y;
cout << "Image Y Size: " << image.getSize().y << endl << "RandY: " << RandY << endl;
cout << "Randomly Relocated\n" << RandX << " and " << RandY << endl;
cout << "Relocation Debug Complete\n\n" << endl;
return sf::Vector2i(RandX, RandY);
}
static bool setTransparency(HWND hwnd, unsigned char alpha)
{
SetWindowLong(hwnd, GWL_EXSTYLE, GetWindowLong(hwnd, GWL_EXSTYLE) | WS_EX_LAYERED);
SetLayeredWindowAttributes(hwnd, 0, alpha, LWA_ALPHA);
return true;
}
static void MakeTopWindow(sf::RenderWindow * windowPoint)
{
HWND hwndPoint = windowPoint->getSystemHandle();
SetWindowPos(hwndPoint, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
}
static vector <MakeKey::NewKey> KeyArray;
static vector <sf::RenderWindow*> WindowArray;
static void StepWindows()
{
for (int i{ 0 }; i > MakeKey::KeyArray.size(); i++)
{
sf::Clock clock;
MakeTopWindow(WindowArray[i]);
setShape(WindowArray[i], KeyArray[i].Img);
WindowArray[i]->clear(sf::Color::Transparent);
WindowArray[i]->draw(KeyArray[i].Sprite);
WindowArray[i]->display();
if (clock.getElapsedTime().asMicroseconds() > 1000)
{
WindowArray[i]->setPosition(MakeKey::Gravity(WindowArray[i], KeyArray[i]));
}
}
}
static void DrawKey(string input)
{
MakeKey::NewKey Key;
if (input == "A")
Key.Img.loadFromFile("Assets/Images/A.png");
else if (input == "D")
Key.Img.loadFromFile("Assets/Images/D.png");
else if (input == "E")
Key.Img.loadFromFile("Assets/Images/E.png");
else if (input == "Q")
Key.Img.loadFromFile("Assets/Images/Q.png");
else if (input == "S")
Key.Img.loadFromFile("Assets/Images/S.png");
else if (input == "W")
Key.Img.loadFromFile("Assets/Images/W.png");
else if (input == "X")
Key.Img.loadFromFile("Assets/Images/X.png");
else if (input == "Z")
Key.Img.loadFromFile("Assets/Images/Z.png");
else if (input == "Esc")
Key.Img.loadFromFile("Assets/Images/esc.png");
Key.Tex.loadFromImage(Key.Img);
Key.Sprite.setTexture(Key.Tex);
//Open Window
sf::RenderWindow window(sf::VideoMode(Key.Img.getSize().x, Key.Img.getSize().y, 32), "Key", sf::Style::None);
window.setPosition(MakeKey::RandSpawn(Key.Img));
sf::RenderWindow* windowPoint = &window;
//Make Transparent
const unsigned char opacity = 1000;
setTransparency(window.getSystemHandle(), opacity);
setShape(windowPoint, Key.Img);
MakeKey::KeyArray.push_back(Key);
MakeKey::WindowArray.push_back(&window);
}
};
主要
int main()
{
sf::RenderWindow window(sf::VideoMode(100, 100, 32), "Main Window", sf::Style::None);
sf::RenderWindow* windowRef = &window;
while (window.isOpen())
{
sf::Event event;
while (window.pollEvent(event))
{
MakeKey::MakeTopWindow(windowRef);
//Key Presses
if (event.type == sf::Event::KeyPressed) {
if (event.key.code == sf::Keyboard::A)
MakeKey::DrawKey("A");
else if (event.key.code == sf::Keyboard::D)
MakeKey::DrawKey("D");
else if (event.key.code == sf::Keyboard::E)
MakeKey::DrawKey("E");
else if (event.key.code == sf::Keyboard::Q)
MakeKey::DrawKey("Q");
else if (event.key.code == sf::Keyboard::S)
MakeKey::DrawKey("S");
else if (event.key.code == sf::Keyboard::W)
MakeKey::DrawKey("W");
else if (event.key.code == sf::Keyboard::X)
MakeKey::DrawKey("X");
else if (event.key.code == sf::Keyboard::Z)
MakeKey::DrawKey("Z");
else if (event.key.code == sf::Keyboard::Escape)
MakeKey::DrawKey("Esc");
}
//Close
if (event.type == sf::Event::Closed)
window.close();
}
MakeKey::StepWindows();
}
return EXIT_SUCCESS;
}
我知道您已经得到了答案，但是请发布您的整个课程，以便大家更好地理解。
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