通过类初始化窗口时，SFML给出不可复制的错误 [英] SFML Giving NonCopyable Error when Initializing a Window Via Class

问题描述

我制作一个Game类，它有一个窗口。当我尝试执行该函数，VS 2012给我这个错误：

 错误1错误C2248：'sf :: NonCopyable： ：operator ='：无法访问在'sf :: NonCopyable'中声明的私有成员C：\ SFML-2.0-rc \include\SFML\Window\Window.hpp 476 1 Faceman 
  
 
 
 
这是我的Game.h（未完成）：
  #ifndef FP_MENU 
 #define FP_MENU 
 
 #include< SFML / Graphics.hpp> 
 
 class GAME {
 public：
 
 sf :: RenderWindow GameWindow; 
 
 void createWindow（）; 
 unsigned int getWindowWidth（）; 
 unsigned int getWindowHeight（）; 
 
 void setWindowWidth（unsigned int w）; 
 void setWindowHeight（unsigned int h）; 
 
 void loadMMenu（）; 
 
 void startGame（bool isTurboMode）; 
 void pause（）; 
 
 void options（）; 
 void changeWindowSize（unsigned int x，unsigned int y）; 
 void changeVolume（int i）; 
 
 void Quit（）; 
 
 private：
 unsigned int WINDOW_WIDTH; 
 unsigned int WINDOW_HEIGHT; 
}; 
 
静态游戏
 
 #endif 
  
 Game.cpp（未完成，具有所有必要的功能用于测试）：
  #includeGame.h
 
 void GAME :: setWindowWidth （unsigned int w）{
 
w = WINDOW_WIDTH; 
} 
 
 void GAME :: setWindowHeight（unsigned int h）{
 
 h = WINDOW_HEIGHT; 
} 
 
 unsigned int GAME :: getWindowHeight（）{
 
 return WINDOW_HEIGHT; 
} 
 
 unsigned int GAME :: getWindowWidth（）{
 
 return WINDOW_WIDTH; 
} 
 
 void GAME :: createWindow（）{
 
 if（getWindowHeight（）！= 0& getWindowWidth（）！= 0）
 {
 GameWindow = sf :: RenderWindow（sf :: VideoMode（getWindowWidth（），getWindowHeight（）），Title Goes Here）; 
 GameWindow.setPosition（sf :: Vector2i（50，50））; 
} 
 
 else 
 {
 setWindowWidth（1024）; 
 setWindowHeight（768）; 
 GameWindow = sf :: RenderWindow（sf :: VideoMode（getWindowWidth（），getWindowHeight（）），Title Goes Here）; 
 GameWindow.setPosition（sf :: Vector2i（50，50））; 
} 
} 
  
 Main.cpp：
  #include< SFML / Graphics.hpp> 
 #includeGame.h
 
 int main（）
 {
 Game.createWindow（Game.getWindowWidth（），Game.getWindowHeight（））; 
 
 while（Game.GameWindow.isOpen（））
 {
 sf ::事件事件; 
 while（Game.GameWindow.pollEvent（event））
 {
 if（event.type == sf :: Event :: Closed）
 Game.GameWindow.close ; 
} 
 
 Game.GameWindow.clear（）; 
 Game.GameWindow.display（）; 
} 
 
 return 0; 
} 
  
 
 
解决方案
即使您可能希望它是初始化：
  GameWindow = sf :: RenderWindow（sf :: VideoMode（getWindowWidth getWindowHeight（）），Title Goes Here）; 
  
并且（如果不明显） sf :: RenderWindow 您可以通过其构造函数在 GAME 的构造函数中初始化RenderWindow $ c> class，或者你可以使它成为一个动态对象：
  std :: unique_ptr< sf :: RenderWindow> GameWindow; //你正在使用VS2012所以C ++ 11智能指针是最好的方法这样做
 
 //...skipped一些代码
 GameWindow = std :: unique_ptr< sf :: RenderWindow>（new sf :: RenderWindow（sf :: VideoMode（getWindowWidth（），getWindowHeight（）），Title Goes Here））; 
  
，然后通过 GameWindow-> 而不是 GameWindow。。
 
I'm making a Game class with a function that makes a window. When I try to execute the function, VS 2012 gives me this error:
Error   1   error C2248: 'sf::NonCopyable::operator =' : cannot access private member declared in class 'sf::NonCopyable'   C:\SFML-2.0-rc\include\SFML\Window\Window.hpp   476 1   Faceman
Here is my Game.h (unfinished):
#ifndef FP_MENU
#define FP_MENU

#include <SFML/Graphics.hpp>

class GAME {
    public:

        sf::RenderWindow GameWindow;

        void createWindow();
            unsigned int getWindowWidth();
            unsigned int getWindowHeight();

            void setWindowWidth(unsigned int w);
            void setWindowHeight(unsigned int h);

        void loadMMenu();

        void startGame( bool isTurboMode );
            void pause();

        void options();
            void changeWindowSize( unsigned int x, unsigned int y );
            void changeVolume( int i );

        void Quit();

    private:
        unsigned int WINDOW_WIDTH;
        unsigned int WINDOW_HEIGHT;
};

static GAME Game;

#endif
Game.cpp (unfinished, has all the necessary functions for testing, though):
#include "Game.h"

void GAME::setWindowWidth(unsigned int w) {

    w = WINDOW_WIDTH;
}

void GAME::setWindowHeight(unsigned int h) {

    h = WINDOW_HEIGHT;
}

unsigned int GAME::getWindowHeight() {

    return WINDOW_HEIGHT;
}

unsigned int GAME::getWindowWidth() {

    return WINDOW_WIDTH;
}

void GAME::createWindow() {

    if(getWindowHeight() != 0 && getWindowWidth() != 0)
    {
        GameWindow = sf::RenderWindow(sf::VideoMode( getWindowWidth(), getWindowHeight() ), "Title Goes Here");
        GameWindow.setPosition(sf::Vector2i(50, 50));
    }

    else 
    {
        setWindowWidth(1024);
        setWindowHeight(768);
        GameWindow = sf::RenderWindow(sf::VideoMode( getWindowWidth(), getWindowHeight() ), "Title Goes Here");
        GameWindow.setPosition(sf::Vector2i(50, 50));
    }
}
Main.cpp:
#include <SFML/Graphics.hpp>
#include "Game.h"

int main()
{
    Game.createWindow(Game.getWindowWidth(), Game.getWindowHeight());

    while (Game.GameWindow.isOpen())
    {
        sf::Event event;
        while (Game.GameWindow.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                Game.GameWindow.close();
        }

        Game.GameWindow.clear();
        Game.GameWindow.display();
    }

    return 0;
}

解决方案
This is a copy operation, even though you probably intended it to be initialization:
GameWindow = sf::RenderWindow(sf::VideoMode( getWindowWidth(), getWindowHeight() ), "Title Goes Here");
And (in case that wasn't obvious) sf::RenderWindow is non-copyable.

You can initialize the RenderWindow via its constructor in the constructor of your GAME class instead, or you can make it a dynamic object:
std::unique_ptr<sf::RenderWindow> GameWindow; //you are using VS2012 so C++11 smart pointers are the best way to do this

//...skipped some code
GameWindow = std::unique_ptr<sf::RenderWindow>(new sf::RenderWindow(sf::VideoMode( getWindowWidth(), getWindowHeight() ), "Title Goes Here"));
and then use it via GameWindow-> rather than GameWindow. .

                        
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